a novel acrylic block copolymer kurarity tm general ...p22 p23 p24 p25 by kuraray’s unique living...

1st Ed.2014.05 E

a novel acrylic block copolymer

〈 KURARITY TM 〉General Introduction

1 2

Kuraray’s �development

’s �development

1926Established in Okayama, Japan

1950　 �(PVA fiber)/ PVA production started1958POVAL(PVA) �for market sales

1964・Polyester staple fiber・� 　(man-made leather)

1972 (EVOH) 1978Dental materials

1990　 (PAR)1998

(PVA Gel)1999 (PA9T)

2003Pilot plant for established

1926

1950

1960

1970

1980

1990

2000

2011< KURARITY TM > commercialized

2010

Houston(Manufacturing for < TM> and Sales for North, Central, and South America)

Frankfurt(Sales for Europe, Africa and the Middle East)

Shanghai(Sales for China)

The global reach of Kuraray’s elastomers business

Plant locations in Japan

Kuraray's Methaclyrate Business

1959MMA monomer1960PMMA Cast sheets

1972PMMA Extruded sheets1973PMMA resin ()

Niigata (Manufacturingfor < TM>)

Tsukuba(R&D for < TM>)

Kashima(Manufacturing< TM>, < TM>, and Liquid polymers R&D for these products)

■ Isoprene Rubber (IR)*� for Natural rubber substitution (*now terminated)

is a novel acryliccopolymer based on Kuraray.s two main stream technologies.

1972- 1974

1974- 1990

1990-

1st Generation

Ziegler-Natta

“Isoprene based Rubbers”■ Trans-�Polyisoprene�(TP)　■ Liquid Isoprene� Rubber �(L-IR)

2nd Generation

Anionic living polymerization

“Hydrogenated�Styrenic Block Copolymer” (HSBC)■ ■

103 104 105 106

3rd Generation

Advanced anionic living polymerization+ Hydrogenation

2003-

Anionic living�polymerization by an unique �catalyst system 〈Features〉●Extremely low residual monomer or oligomer●Extremely low odor●Low hardness without plasticizer

PnBApolymerizedby AIBN

(Mw/Mn=1.56)

Molecular Weight

Mw distribution(Mw/Mn=1.13)

Elastomers Business

1972　Isoprene rubber (now terminated)1974Liquid isoprene rubber

1999　AL based catalyst invented

1990 (HSBC)1994 (HSBC)

2001V series (Hard block cross-linkable HSBC)2003 Q series (special HSBC)

Tokyo(Elastomer Business World HQ and Sales for Japan and Asia Pacific)

KURARAY & its elastomer business

Evolution of Kuraray’s elastomers

Ⅱ

SEPTON

KURARITY

KURARITY

SEPTONHYBRAR

1 2

Kuraray’s �development

’s �development

1926Established in Okayama, Japan

1950　 �(PVA fiber)/ PVA production started1958POVAL(PVA) �for market sales

1964・Polyester staple fiber・� 　(man-made leather)

1972 (EVOH) 1978Dental materials

1990　 (PAR)1998

(PVA Gel)1999 (PA9T)

2003Pilot plant for established

1926

1950

1960

1970

1980

1990

2000

2011< KURARITY TM > commerciarized

2010

Houston(Manufacturing for < TM> and Sales for North, Central, and South America)

Frankfurt(Sales for Europe, Africa and the Middle East)

Shanghai(Sales for China)

The global reach of Kuraray’s elastomers business

Plant locations in Japan

Kuraray's Methaclyrate Business

1959MMA monomer1960PMMA Cast sheets

1972PMMA Extruded sheets1973PMMA resin ()

Niigata (Manufacturingfor < TM>)

Tsukuba(R&D for < TM>)

Kashima(Manufacturing< TM>, < TM>, and Liquid polymers R&D for these products)

■ Isoprene Rubber (IR)*� for Natural rubber substitution (*now terminated)

is a novel acryliccopolymer based on Kuraray.s two main stream technologies.

1972- 1974

1974- 1990

1990-

1st Generation

Ziegler-Natta

“Isoprene based Rubbers”■ Trans-�Polyisoprene�(TP)　■ Liquid Isoprene� Rubber �(L-IR)

2nd Generation

Anionic living polymerization

“Hydrogenated�Styrenic Block Copolymer” (HSBC)■ ■

103 104 105 106

3rd Generation

Advanced anionic living polymerization+ Hydrogenation

2003-

Anionic living�polymerization by an unique �catalyst system 〈Features〉●Extremely low residual monomer or oligomer●Extremely low odor●Low hardness without plasticizer

PnBApolymerizedby AIBN

(Mw/Mn=1.56)

Molecular Weight

Mw distribution(Mw/Mn=1.13)

Elastomers Business

1972　Isoprene rubber (now terminated)1974Liquid isoprene rubber

1999　AL based catalyst invented

1990 (HSBC)1994 (HSBC)

2001V series (Hard block cross-linkable HSBC)2003 Q series (special HSBC)

Tokyo(Elastomer Business World HQ and Sales for Japan and Asia Pacific)

KURARAY & its elastomer business

Evolution of Kuraray’s elastomers

Ⅱ

SEPTON

KURARITY

KURARITY

SEPTONHYBRAR

3 4

All Acrylic Block Copolymer

Hard block Soft block

SoftnessAdhesionPolarity

Optically transparentWeatherablePaintable

Thermoplastic elastomerEasily processableCompatibilizerHot meltNo residual oligomers or monomers

Contents

Structure and characteristics of “KURARITY TM”

Comparison of “KURARITY TM” with other transparent materials

Potential applications for “KURARITY TM”

Grades of “KURARITY TM”

Physical and Mechanical Properties of “KURARITY TM”

Adhesive Properties of “KURARITY TM”

Solubility Parameters of “KURARITY TM”

Solvent Solubility of “KURARITY TM”

Properties of “KURARITY TM”

Paintability of “KURARITY TM”

Adhesion to other plastics

Chemical Resistance of “KURARITY TM”

Compatibility with “KURARITY TM”

Injection Molding Conditions of “KURARITY TM”

Extrusion Conditions of “KURARITY TM”

Moisture Absorption of “KURARITY TM”

Compounding Conditions of “KURARITY TM”

P4

P5

P6

P7

P8-9

P10

P11

P12

P13-17

P18

P19

P20

P21

P22

P23

P24

P25

by Kuraray’s unique living anionic polymerization technology.

This acrylic based structure provides the following characteristics:● Excellent clarity in elastomers● Excellent weatherbility with no concerns about hydrolytic degradation● High gloss● Self-adhesive and moldable● Ultimately less odor　　…etc


3 4

All Acrylic Block Copolymer

Hard block Soft block

SoftnessAdhesionPolarity

Optically transparentWeatherablePaintable

Thermoplastic elastomerEasily processableCompatibilizerHot meltExtremely low residualmonomer or oligomer

Contents

Structure and characteristics of ”KURARITY TM”

Comparison of ”KURARITY TM” with other transparent materials

Potential applications for ”KURARITY TM”

Grades of ”KURARITY TM”

Physical and Mechanical Properties of ”KURARITY TM”

Adhesive Properties of ”KURARITY TM”

Solubility Parameters of ”KURARITY TM”

Solvent Solubility of ”KURARITY TM”

Properties of ”KURARITY TM”

Paintability of ”KURARITY TM”

Adhesion to other plastics

Chemical Resistance of ”KURARITY TM”

Compatibility with ”KURARITY TM”

Injection Molding Conditions of ”KURARITY TM”

Extrusion Conditions of ”KURARITY TM”

Moisture Absorption of ”KURARITY TM”

Compounding Conditions of ”KURARITY TM”

P4

P5

P6

P7

P8-9

P10

P11

P12

P13-17

P18

P19

P20

P21

P22

P23

P24

P25

by Kuraray’s unique living anionic polymerization technology.

This acrylic based structure provides the following characteristics:● Excellent clarity in elastomers● Excellent weatherability with no concerns about hydrolytic degradation● High gloss● Self-adhesive and moldable● Ultimately less odor　　…etc


Potential applications for “KURARITY TM”

Comparison of “KURARITY TM”with other transparent materials

Injection Molding

Extrusion

5 6

Adhesives

Hot melt PSA

Industrial tapes �

and labels

Modifier for PLA, ABS,

PBT, PVDF, PVC, PET-G

and etc.

Consumer goods,

Automotive interior

parts, Appliances,

Lighting goods

Solvent based PSA

Molding Materials

Plastics Modification

A

B

C

B B B

A A C

KURARITYTMPMMA

MoldingVersatility

Comparison with PMMA

MoldingVersatility

MoldingVersatility

4

5

3

2

1

0

KURARITYTMPCABS(Transparent)

Comparison with transparenthard plastics

4

5

3

2

1

0

KURARITYTMAliphatic TPU

Comparison with�AliphaticTPU

4

5

3

2

1

0

Method Condition (Unit) LB550 LA4285 LM730H PMMA PCTransparent

ABSAliphatic

TPU

-Transmittance

Haze

Tensile strength at break

Tensile strain at break

Flexural modulusCharpy impact

strength unnotched Charpy impact

strength notched

DTUL

Vicat softening point

Surface resistivity

Volume resistivity

Specific Gravity

Rockwell Hardness

Durometer Hardness

Linear thermal expansion

Flammability

Water absorption at 23℃

Mold Shrinkage

Refractive index

Abbe's Number

Pencil Hardness

ISO13468-1

3mm/D65(%) 91<

7 8

● LA4285

● LA4285

● LA2250LA2140eLA2330

LM730H

LB550

● LA2250

● LA2140e ● LA2330

For �Adhesives

*） Di-block Viscous Liquid

● LA1114*

For Molding

Low

PMM

A c

ont.

(wt%

)

PMM

A c

ont.

(wt%

)

Low

20 30 40 50 60 70 80 90

High

High

Low

High

(D64)

Molecular Weight

Hardness [Type A]

●

●

●

The figures should be regarded as guide values only and not as binding minimum values.

（–）（–）（–）

(g/10min)

(g/10min)

(MPa)

(MPa)

(MPa)

(%)

(%)

(MPa)

(kJ/m2)

(%)

(%)

ISO 7619-1（Type A）ISO 7619-1（Type D）ISO 1183

ISO 1133 [190� 2.16kg]

ISO 1133 [230� 2.16kg]

ISO 37

ISO 37

ISO 527-2

ISO 37

ISO 527-2

ISO 178

ISO 179-1(notched : 1eA)

ISO 13468-1 [3mmt]

ISO 14782 [3mmt]

For PSA

For Molding

For Compound, Additives

Test Method Units

Hardness

Specific Gravity

MFR

Modulus at 100%

Tensile Strength

Tensile Elongation

Flexural Modulus

Charpy Impact

Transmittance

Haze

Suitable Applications

32

< 5

1.08

31

>350

0.3

8.0

–

570

–

–

NB

91 <

2-6 *+–

+**

LA2140e

32

< 5

1.08

3.7

42

0.3

7.2

–

490

–

–

NB

91 <

2-6 *+–

+**

LA2330

78

34

1.10

3.8

68

9.1

12

–

190

–

100

NB

91 <

< 2

+

LB550

97

64

1.13

1.1

17

–

–

30

–

50

1400

10

91 <

< 2

+

LM730H

65

18

1.08

25

330

3.7

9.0

–

380

–

–

NB

91 <

2-6 *+ +** +**

LA2250

95

46

1.11

1.5

31

19

19

19

140

90

650

28

91 <

< 2

++

LA4285

* The HAZE value are normally worse due to the anti-blocking agent dusted onto the material.**These grades can block or bridge while feeding into the extruder. Some solutions to break it should be implemented.

Tested by Kuraray

LB550 and LM730H aredevelopmental grades.

＜Pellet Grades＞LA series：nBA based block copolymersLB series：Softer KURARITYTM alloysLM series：Stiffer KURARITYTM alloys

100nm 100nm 100nm

LA2140e LA2250 LA4285

Grades of “KURARITY TM”Physical and Mechanical Properties of “KURARITY TM”

7 8

● LA4285

● LA4285

● LA2250LA2140eLA2330

LM730H

LB550

● LA2250

● LA2140e ● LA2330

For �Adhesives

*） Di-block Viscous Liquid

● LA1114*

For Molding

Low

PMM

A c

ont.

(wt%

)

PMM

A c

ont.

(wt%

)

Low

20 30 40 50 60 70 80 90

High

High

Low

High

(D64)

Molecular Weight

Hardness [Type A]

●

●

●

The figures should be regarded as guide values only and not as binding minimum values.

（–）（–）（–）

(g/10min)

(g/10min)

(MPa)

(MPa)

(MPa)

(%)

(%)

(MPa)

(kJ/m2)

(%)

(%)

ISO 7619-1（Type A）ISO 7619-1（Type D）ISO 1183

ISO 1133 [190℃ 2.16kg]

ISO 1133 [230℃ 2.16kg]

ISO 37

ISO 37

ISO 527-2

ISO 37

ISO 527-2

ISO 178

ISO 179-1(notched : 1eA)

ISO 13468-1 [3mmt]

ISO 14782 [3mmt]

For PSA

For Molding

For Compound, Additives

Test Method Units

Hardness

Specific Gravity

MFR

Modulus at 100%

Tensile Strength

Tensile Elongation

Flexural Modulus

Charpy Impact

Transmittance

Haze

Suitable Applications

32

< 5

1.08

31

>350

0.3

8.0

–

570

–

–

NB

91 <

2-6 *+–

+**

LA2140e

32

< 5

1.08

3.7

42

0.3

7.2

–

490

–

–

NB

91 <

2-6 *+–

+**

LA2330

78

34

1.10

3.8

68

9.1

12

–

190

–

100

NB

91 <

< 2

+

LB550

97

64

1.13

1.1

17

–

–

30

–

50

1400

10

91 <

< 2

+

LM730H

65

18

1.08

25

330

3.7

9.0

–

380

–

–

NB

91 <

2-6 *+ +** +**

LA2250

95

46

1.11

1.5

31

19

19

19

140

90

650

28

91 <

< 2

++

LA4285

* The HAZE value is normally worse due to the anti-blocking agent dusted onto the material.**These grades can block or bridge while feeding into the extruder. Some solutions to break it should be implemented.

Tested by Kuraray


＜Pellet Grades＞LA series：nBA based block copolymersLB series：Softer KURARITYTM alloysLM series：Stiffer KURARITYTM alloys

100nm 100nm 100nm

LA2140e LA2250 LA4285

Grades of “KURARITY TM”Physical and Mechanical Properties of “KURARITY TM”

9 10

Vis

cosi

ty（

mPa・

s ）

107

106

105

104

10320 40 60 80 100 120 140 160 180

Temperature (℃)

＜Liquid Grade＞Temperature dependency of Viscosity (LA1114).

LA1114

ISO1183

ISO2555

-40～ -50

Specific Gravity

Melt viscosity(mPa・s)

Tg (℃)

50℃�

70℃�

100℃�

130℃�

160℃�

1.04

2000000

400000

65000

15000

5000

LA1114

： PET(50µm)/KURARITYTM(25µm),toluene solution ： Creep test ： 1.0kgf, Sample size 25mm×25mm, 1000min SAFT ： 0.5kgf, Sample size 25mm×25mm, 0.5℃/minRolling ball tack ： ASTM D3121Loop tack ： PSTC-16180℃ Peel adhesion ： 300mm/min, Room Temperature　　　　

LA2140e

Creep test at 60℃（mm)

SAFT(℃)

Rolling ball tack(cm)

Loop tack test (N/10mm)

180℃ Peel adhesion (N/25mm)

to Stainless steel

to Glass

to Stainless steel

to Stainless steel

to Glassto Stainless steelto Polyethylene

9 10

Vis

cosi

ty（

mPa・

s ）

107

106

105

104

10320 40 60 80 100 120 140 160 180

Temperature (℃)

＜Liquid Grade＞Temperature dependency of Viscosity (LA1114).

LA1114

ISO1183

ISO2555

-40～ -50

Specific Gravity

Melt viscosity(mPa・s)

Tg (℃)

50�

70�

100�

130�

160�

1.04

2000000

400000

65000

15000

5000

LA1114

： PET(50µm)/KURARITYTM(25µm),toluene solution ： Creep test ： 1.0kgf, Sample size 25mm×25mm, 1000min SAFT ： 0.5kgf, Sample size 25mm×25mm, 0.5℃/minRolling ball tack ： ASTM D3121Loop tack ： PSTC-16180℃ Peel adhesion ： 300mm/min, Room Temperature　　　　

LA2140e

Creep test at 60℃（mm)

SAFT(℃)

Rolling ball tack(cm)

Loop tack test (N/10mm)

180℃ Peel adhesion (N/25mm)

to Stainless steel

to Glass

to Stainless steel

to Stainless steel

to Glassto Stainless steelto Polyethylene

11 12

Solubility Parameter

Common resins for adhesives

● Adhesive performance can be controlled by tackification. Tackifiers and plasticizers can be chosen referring to solubility parameter.● Rosin ester, Terpene phenol and Styrenic resins with lower softening temperatures are suitable.

8.0 8.5 9.0

＜Solubility Parameter＞＜Solvent Solubility＞

IIR NR SBR

SEBS SIS SBS

MMA

〈KURARITYTM〉

Benzene

Toluene

Xylene

Methyl acetate

Ethyl acetate

Butyl acetate

Acetone

Methyl ethyl ketone

Methyl isopropyl ketone

Methyl isobutyl ketone

Tetra hydro furan

Chloroform

Carbon tetra chloride

Ethylene glycol monobutyl ether

Heptane

Cyclohexane

Methanol

Ethanol

Isopropyl alcohol

S

S

S

S

S

S

S

S

S

S

S

S

S

S

SW (-)

SW

SW (+)

SW (+)

SW

LA2140eSolvent

S

S

S

S

S

S

S

S

S

S

S

S

S

S

SW (-)

SW

SW (+)

SW

SW

LA2330

S

S

S

S

S

S

S

S

S

S

S

S

S

S

SW (-)

SW

SW (+)

SW (+)

SW

LA2250

S

S

S

S

S

S

S

S

S

S

S

S

S

S

I

SW (-)

SW

SW (-)

SW

LA4285

2g of KURARITYTM (pellets) and 18g of solvent were mixed in a vessel and shaken at room temperature for 2 days. The solvent solubility was determined by visual observation.

　　　　

S　　　：solublePS　　：partially solubleSW（＋）：greatly swelling and agglomeratingSW　　：swellingSW(－)　：minimal swellingI　　　　：Insoluble

　　　　



11 12

Solubility Parameter

Common resins for adhesives

● Adhesive performance can be controlled by tackification. Tackifiers and plasticizers can be chosen referring to solubility parameter.● Rosin ester, Terpene phenol and Styrenic resins with lower softening temperatures are suitable.

8.0 8.5 9.0

＜Solubility Parameter＞＜Solvent Solubility＞

IIR NR SBR

SEBS SIS SBS

MMA

〈KURARITYTM〉

Benzene

Toluene

Xylene

Methyl acetate

Ethyl acetate

Butyl acetate

Acetone

Methyl ethyl ketone

Methyl isopropyl ketone

Methyl isobutyl ketone

Tetrahydrofuran

Chloroform

Carbon tetrachloride

Ethylene glycol monobutyl ether

Heptane

Cyclohexane

Methanol

Ethanol

Isopropyl alcohol

S

S

S

S

S

S

S

S

S

S

S

S

S

S

SW (-)

SW

SW (+)

SW (+)

SW

LA2140eSolvent

S

S

S

S

S

S

S

S

S

S

S

S

S

S

SW (-)

SW

SW (+)

SW

SW

LA2330

S

S

S

S

S

S

S

S

S

S

S

S

S

S

SW (-)

SW

SW (+)

SW (+)

SW

LA2250

S

S

S

S

S

S

S

S

S

S

S

S

S

S

I

SW (-)

SW

SW (-)

SW

LA4285

2g of KURARITYTM (pellets) and 18g of solvent were mixed in a vessel and shaken at room temperature for 2 days. The solvent solubility was determined by visual observation.

　　　　

S　　　：solublePS　　：partially solubleSW（＋）：greatly swelling and agglomeratingSW　　：swellingSW(－)　：minimal swellingI　　　　：Insoluble

　　　　



13 14

Test method : ASTM E1530 Test piece size : 50mmφ * 3mmt Injection molded sampleTemperature : 23℃

LA2250LA2140e

0.170.17

[W/(m･K)]

Test method : ASTM D150Sample : LA2250 Compression molded sheet

＜Electrical properties＞

Relative Permittivity　εγDielectric dissipation factor　Dt

3.80.063

1MHz

4.40.023

1kHz

4.7-

50Hz

4.7-

50Hz

Test method : by image processing method　　　　　 Solvent = Purified water Test piece size : 50mm * 50mm * 3mmt Injection molded sample

＜Contact angle＞

90

90

89

73

Angle (deg.)

LA4285LA2250PCPMMA

Test method : JIS Z 0208 (Dish method), 40degC 90% RHTest piece size : 60mmφ * 0.1mmt , Compression molded sheet

＜Moisture Permeability＞

580610480320

Water Vapor Transmission Rate (g/m2・24hr)

LA2140e

LA2330

LA2250

LA4285

＜Dynamic Viscoelastic Behavior＞

● All the KurarityTM grades show similar low temperature properties 　which result from Tg of PnBA and heat resistance 　which results from Tg of PMMA. ● KurarityTM is non-crystalline block copolymer and 　does not have melting point.

LB550 is a developmental grade test speciment：Compression molded sheettensile modeFrequency：11HzHeating rate：3℃/min

Properties of “KURARITY TM” Properties of “KURARITY TM”

E’ （

Pa） Tanσ

-100

1.E+10

1.E+09

1.E+08

1.E+07

1.E+06

1.E+05

1.E+04

1.E+03

1.E+05

1.E+04

1.E+03

1.E+02

1.E+01

1.E+00

1.E-01

1.E-02

-50 0 50 100 150 200

Temperature (℃)

LA4285

LB550

LA2250

13 14

Test method : ASTM E1530 Test piece size : 50mmφ * 3mmt Injection molded sampleTemperature : 23℃

LA2250LA2140e

0.170.17

[W/(m･K)]

Test method : ASTM D150Sample : LA2250 Compression molded sheet

＜Electrical properties＞

Relative Permittivity　εγDielectric dissipation factor　Dt

3.80.063

1MHz

4.40.023

1kHz

4.7-

50Hz

4.7-

50Hz

Test method : by image processing method　　　　　 Solvent = Purified water Test piece size : 50mm * 50mm * 3mmt Injection molded sample

＜Contact angle＞

90

90

89

73

Angle (deg.)

LA4285LA2250PCPMMA

Test method : JIS Z 0208 (Dish method), 40degC 90% RHTest piece size : 60mmφ * 0.1mmt , Compression molded sheet

＜Moisture Permeability＞

580610480320

Water Vapor Transmission Rate (g/m2・24hr)

LA2140e

LA2330

LA2250

LA4285

＜Dynamic Viscoelastic Behavior＞

● All the KURARITYTM grades show similar low temperature properties 　which result from Tg of PnBA and heat resistance 　which results from Tg of PMMA. ● KURARITYTM is non-crystalline block copolymer and 　does not have melting point.

LB550 is a developmental grade test specimens：Compression molded sheetstensile modeFrequency：11HzHeating rate：3℃/min


E’ （

Pa） Tanσ

-100

1.E+10

1.E+09

1.E+08

1.E+07

1.E+06

1.E+05

1.E+04

1.E+03

1.E+05

1.E+04

1.E+03

1.E+02

1.E+01

1.E+00

1.E-01

1.E-02

-50 0 50 100 150 200

Temperature［℃］

LA4285

LB550

LA2250

Tested by Kuraray

15 16

● HYBRARTM is a series of styrenic elastomers developed by Kuraray Co., Ltd. which offer high vibration damping properties due to its tan δ peak near room temperature.● SEPTONTM is a series of hydrogenated styrenic elastomers developed by Kuraray Co., Ltd. SEPTONTM has its tan δ peak at lower temperature and shows rubber-like properties at room temperature.

tan δ

10

1

0.1

0.01-100 -50 500

Temperature[℃]

HYBRARTM5127HYBRARTM7125SEPTONTM4033KURARITYTMLA2140eKURARITYTMLA2250KURARITYTMLA4285

＜Test Conditions＞Test specimen: Compression molded sheetTensile modeFrequency: 11HzHeating rate: 2�/min

Tested by Kuraray＜Temperature dependency of Tanδ＞＜Thermal stability＞ Test Condition : Rate:10℃/min

5% Weight Loss Temp.99% Weight Loss Temp.

316℃445℃

LA2250

315℃435℃

LA4285

Air

5% Weight Loss Temp. 99% Weight Loss Temp.

276℃528℃

LA2250

278℃507℃

LA4285

Wei

ght[

%]

Temperature[℃]

Temperature[℃]

100

80

60

40

20

0

Wei

ght[

%]

100

80

60

40

20

0

0 100 200 300 400 500 600 700

0 100 200 300 400 500 600 700

LA2250LA4285

LA2250LA4285

N2


17 18

Tens

ile S

tren

gth （

MPa）

Exposure time（hr）

30

20

10

00 500 1000 1500 2000

LA2250LB550TPUAliphatic-TPU

Tensile Strength（ISO37）

Tens

ile S

tren

gth （

MPa）


100

80

60

40

20

00 500 1000 1500 2000

LA4285LM730HPMMAPCABS

Tensile Strength（ISO527-2）

b V

alue

1.5

1.0

0.5

0.0

LA42

85

LA22

50

LB55

0

LM73

0H

PMM

A PC

AB

S

TPU

Alip

hatic

-TPU

0hr1000hr2000hr

Color（b Value）

Haz

e （%）

16

12

8

0

LA42

85

LA22

50

LB55

0

LM73

0H

PMM

A PC

AB

S

TPU

Alip

hatic

-TPU

4

0hr1000hr2000hr

Haze

*) These samples are without UVA, HALS-

*) The coating materials may crack depending on their flexibility**) Acrylic urethane paints have proven well suited.***) Pigments (organic or inorganic) have proven well suited.

LB550

Painting **

Printing(Inkjet print:UV type)

Pad printing (UV Type)

Hard Coating (Improve Scratch Resistance)

Coating (Vacuum deposition)Al, Cr, Sn, SiO2, ITO　

Dyeing ***

+

+

+

+

+

+*

LA4285

+

+

+

+

+

+*

LM730H

+

+

+

+

+

+*

PMMA

+

+

+

+

-

+

＜Weatherability＞Test method：ISO4892-4 (SWOM)BPT：63 ℃Exposure Intensity：255W/m2 (300~700nm)Exposure time： 500hr, 1,000hr, 2,000hrInjection molded test specimen

2 8 611 29 49 31 23 89 41

Properties of “KURARITY TM” Paintability of “KURARITY TM”


17 18

Tens

ile S

tren

gth （

MPa）


30

20

10

00 500 1000 1500 2000

LA2250LB550TPUAliphatic-TPU

Tensile Strength（ISO37）

Tens

ile S

tren

gth （

MPa）


100

80

60

40

20

00 500 1000 1500 2000

LA4285LM730HPMMAPCABS

Tensile Strength（ISO527-2）

b V

alue

1.5

1.0

0.5

0.0

LA42

85

LA22

50

LB55

0

LM73

0H

PMM

A PC

AB

S

TPU

Alip

hatic

-TPU

0hr1000hr2000hr

Color（b Value）

Haz

e （%）

16

12

8

0

LA42

85

LA22

50

LB55

0

LM73

0H

PMM

A PC

AB

S

TPU

Alip

hatic

-TPU

4

0hr1000hr2000hr

Haze

*) These samples are without UVA, HALS-

*) The coating materials may crack depending on their flexibility**) Acrylic urethane paints have proven well suited.***) Pigments (organic or inorganic) have proven well suited.

LB550

Painting **

Printing(Inkjet print:UV type)

Pad printing (UV Type)

Hard Coating (Improve Scratch Resistance)

Coating (Vacuum deposition)Al, Cr, Sn, SiO2, ITO　

Dyeing ***

+*

+

+

+*

+*

+

LA4285

+

+

+

+

+

+

LM730H

+

+

+

+

+

+

PMMA

+

+

+

+

-

+

＜Weatherability＞Test method：ISO4892-4 (SWOM)BPT：63 ℃Exposure Intensity：255W/m2 (300~700nm)Exposure time： 500hr, 1,000hr, 2,000hrInjection molded test specimen

2 8 611 29 49 31 23 89 41

Properties of “KURARITY TM” Paintability of “KURARITY TM”


Adhesion to other plasticsChemical Resistanceof “KURARITY TM”

19 20

*Proper equipment and processing parameter adjustments are required since the processing temperature of these resins are widely different from KURARITYTM.

Overmolded Sample

�

PMMA

PC

PET-G

ABS

PS

PVC

TPU

PBT

POM

PET

PA

PE

PP

+

+

+

+

+

+

+

-

-

-

-

-

-

+

+*

+

+

+

+

+

-

-

-*

-*

-

-

Double Injectionwith KURARITYTM

Co-Extrusionwith KURARITYTM

Acids (H2SO4: 0.1N)

Alkaline solution (NaOH: 0.1N)

Hand cream

Castor oil

Gasoline

Kerosene

Oleinic acid

Engine oil (Mineral oil)

Wax (liquid type: Alcohol 10%)

Ethanol aqueous solution (50wt%)

Methanol

Ethanol

Brake fluid (Glycol ether: 99%)

+

+

+

+

+

-

-

+

+

+

-

-

-

Visual Check

+ : No Change, - : Swell / Clouding

Test Method:The aforementioned chemical is soaked into cotton cloth, 　 then wiped 8 times-RT*24hr-80ºC *1hrSample:LA2250 (Similar results are expected with other grades)

Adhesion to other plasticsChemical Resistanceof “KURARITY TM”

19 20

*Proper equipment and processing parameter adjustments are required since the processing temperature of these resins are widely different from KURARITYTM.

Overmolded Sample

�

PMMA

PC

PET-G

ABS

PS

PVC

TPU

PBT

POM

PET

PA

PE

PP

+

+

+

+

+

+

+

-

-

-

-

-

-

+

+*

+

+

+

+

+

-

-

-*

-*

-

-

Double Injectionwith KURARITYTM

Co-Extrusionwith KURARITYTM

Acids (H2SO4: 0.1N)

Alkaline solution (NaOH: 0.1N)

Hand cream

Castor oil

Gasoline

Kerosene

Oleic acid

Engine oil (Mineral oil)

Wax (liquid type: Alcohol 10%)

Ethanol aqueous solution (50wt%)

Methanol

Ethanol

Brake fluid (Glycol ether: 99%)

+

+

+

+

+

-

-

+

+

+

-

-

-

Visual Check

+ : No Change, - : Swell / Clouding

Test Method:The aforementioned chemical is soaked into cotton cloth, 　 then wiped 8 times-RT*24hr-80ºC *1hrSample:LA2250 (Similar results are expected with other grades)

Compatibility with “KURARITY TM”Injection Molding Conditions of “KURARITY TM”

21 22

Thickness: 400μ

（*）Mixing with Lower MVR（MFR） PMMA causes opaque appearance.

Clear

Opaque

Excellent Good Poor Process Temp.mismatching

PMMA�（*） AS

PLAEVA

High VA% EVALow VA％

PP/PETPO

PVDF PVC

ABS/TPUPET-G/PCPBT/POM

PIPETPA

VisualClarity

＜PLA Modification by KURARITYTM＞

PLA / KURARITYTM=90/10

KURARITYTM

(black)

PLA (white, matrix)

KURARITYTM

Matrix

500nm

TEM Photo.

PLA / KURARITYTM�= 70/30

Cylinder Temperature (ºC)

Mold Temperature (ºC)

The bottom of hopper

Screw Revolution (rpm)

Back Pressure (kgf/cm2)

180-220

20-40

Water Cooling

< 100

0-10

LB550

200-230

20-40

Water Cooling

< 100

0-10

LA4285

210-240

30-60

Water Cooling

< 100

0-10

LM730H

-Circulating air ovens or vacuum oven dryers are recommended. -A vented barrel and screw is satisfactory alternative to pre-drying.LB550 : 60 ºC, 4 hoursLA4285, LM730H : 70-80 ºC, �more than 4 hours

All traces must be fully� purged with polypropylene or polyethylene.

The following slip agents have proven�suitable to protect components with highly smooth surface from scratches as well as to reduce tackiness of components.

Zinc stearate 0.01-0.05 (phr)

Ethylene bis oleic amide 0.01-0.05 (phr)


Compatibility with “KURARITY TM”Injection Molding Conditions of “KURARITY TM”

21 22

400μ厚

（*）Mixing with Lower MVR（MFR） PMMA causes opaque appearance.

Clear

Opaque

Excellent Good Poor Process Temp.mismatching

PMMA�（*） AS

PLAEVA

High VA% EVALow VA％

PP/PETPO

PVDF PVC

ABS/TPUPET-G/PCPBT/POM

PIPETPA

VisualClarity

＜PLA Modification by Kurarity＞

PLA / Kurarity=90/10

Kurarity(black)

PLA (white, matrix)

KurarityMatrix

500nm

TEM Photo.

PLA / Kurarity�= 70/30

Cylinder Temperature (ºC)

Mold Temperature (ºC)

The bottom of hopper

Screw Revolution (rpm)

Back Pressure (kgf/cm2)

180-220

20-40

Water Cooling

< 100

0-10

LB550

200-230

20-40

Water Cooling

< 100

0-10

LA4285

210-240

30-60

Water Cooling

< 100

0-10

LM730H

-Circulating air ovens or vacuum oven dryers are recommended. -A vented barrel and screw is satisfactory alternative to pre-drying.LB550 : 60 ºC, 4 hoursLA4285, LM730H : 70-80 ºC, �more than 4 hours

All traces must be fully� purged with polypropylene or polyethylene.

The following slip agents have proven�suitable to protect components with highly smooth surface from scratches as well as to reduce tackiness of components.

Zinc stearate 0.01-0.05 (phr)

Ethylene bis oleic amide 0.01-0.05 (phr)




23 24

● KURARITY TM must be dried prior to processing when using non-vented extruder 　(hot air dryer, 60℃�, no less than 4 hours).

● The screen pack should consist of two 80 and 100 mesh screens to 　remove any impurities that may damage the die, and also to 　ensure sufficient back pressure.

● A water cooling bath (5~30℃) is recommended for the cooling of KURARITY TM. 　* Air cooling or shower may give insufficient cooling, and also 　　generate vibrations that may cause defects in appearance.

● The edge and inner surface of the die should be well-finished to 　achieve high- quality appearance.

● When switching from other resins, dismantling and cleaning of the extruder screw 　and die components is recommended to prevent contamination. 　Purging with polypropylene or polyethylene is recommended to remove 　residual KURARITY TM in the extruder.

※ single screw extruder with the following specs is recommended; � -machines using TPU, PVC� 　 -full-flighted screw, L/D=24-28, compression ratio=2.5 - 3.1

LB550Water Cooling(down to 40℃)

Hopper

100�～ 130℃

Feeding zone

140�～ 160℃

Compression zone

150�～ 170℃

Metering zone

150�～ 170℃

Adapter

150�～ 170℃

Die Head

Wat

er a

bsor

ptio

n [p

pm]

Wat

er a

bsor

ptio

n [p

pm]

Time [h]

Drying time [h]

4000

4000

3000

2000

1000

0 20 40 60 80

3500

3000

2500

2000

1500

1000

500

00 5 10 15 20 25

Drying testTested in pellet form.　Test Condition : Air circulating oven dryerLA2250, LB550 : 60 ℃ LA4285, LM730H : 70 ℃

Moisture absorption testTested in pellet form.Test Condition : 25 ℃ 50%RH

LA2250

LB550

LA4285

LM730H

LA2250

LB550

LA4285

LM730H

The mechanical properties are largely unaffected by water absorption, though its appearance might be observed as opaque when it contains more water.

LB550 and LM730H are developmental grades.

Examples of Die Polishing

Before

polishing

the edge

×500

After

polishing

the edge

×500

LB550 is a developmental grade.



23 24

● KURARITY TM must be dried prior to processing when using non-vented extruder 　(hot air dryer, 60℃�, no less than 4 hours).

● The screen pack should consist of two 80 and 100 mesh screens to 　remove any impurities that may damage the die, and also to 　ensure sufficient back pressure.

● A water cooling bath (5~30℃) is recommended for the cooling of KURARITY TM. 　* Air cooling or shower may give insufficient cooling, and also 　　generate vibrations that may cause defects in appearance.

● The edge and inner surface of the die should be well-finished to 　achieve high- quality appearance.

● When switching from other resins, dismantling and cleaning of the extruder screw 　and die components is recommended to prevent contamination. 　Purging with polypropylene or polyethylene is recommended to remove 　residual KURARITY TM in the extruder.

※ single screw extruder with the following specs is recommended; � -machines using TPU, PVC� 　 -full-flighted screw, L/D=24-28, compression ratio=2.5 - 3.1

LB550Water Cooling(down to 40℃)

Hopper

100�～ 130℃

Feeding zone

140�～ 160℃

Comzpression zone

150�～ 170℃

Metering zone

150�～ 170℃

Adapter

150�～ 170℃

Die Head

Wat

er a

bsor

ptio

n [p

pm]

Wat

er a

bsor

ptio

n [p

pm]

Time [h]

Drying time [h]

4000

4000

3000

2000

1000

0 20 40 60 80

3500

3000

2500

2000

1500

1000

500

00 5 10 15 20 25

Drying testTested in pellet form.　Test Condition : Air circulating oven dryerLA2250, LB550 : 60 ℃ LA4285, LM730H : 70 ℃

Moisture absorption testTested in pellet form.Test Condition : 25 ℃ 50%RH

LA2250

LB550

LA4285

LM730H

LA2250

LB550

LA4285

LM730H

The mechanical properties are largely unaffected by water absorption, though its appearance might be observed as opaque when it contains more water.

LB550 and LM730H are developmental grades.

Examples of Die Polishing

Before

polishing

the edge

×500

After

polishing

the edge

×500

LB550 is a developmental grade.


25 26

Since the melt viscosity of KURARITY TM

depends on shear rate, a twin screw extruder is suitable for compounding.

Pre-drying is required if your twin screw extruder is not vented.�

An air Circulating oven dryer or vacuum oven dryer is recommended.

LA2250 : 60 ºC, 4 hours

LA4285 : 70-80 ºC, more than 6 hours

kneading�zone １

Twin extruder

Die headWatering cutter,�Under water cutter.Strand cutter,etc

Hopper

＜KURARITYTM＞Other resins,Additives,�etc

kneading�zone 2

Cutter

C2 50 ºC

C3 - C12 170 - 230 ºC

Die head 170 - 230 ºC�

Screw rotation : 200 rpm

Equipment : TEX 44XCT Twin Screw Extruder (JSW)

Screw diameter : 44mm, L/D=42

Barrel Temperature

Mel

t V

isco

sity（

Pa・

s ）

Shear Rate（1/sec）

1.E+05

1.E+04

1.E+03

1.E+02

1.E+011.E+00 1.E+01 1.E+02 1.E+03 1.E+04 1.E+04

160℃180℃200℃

LA2250

Mel

t V

isco

sity（

Pa・

s ）


1.E+05

1.E+04

1.E+03

1.E+02

1.E+011.E+00 1.E+01 1.E+02 1.E+03

180℃200℃220℃240℃

LA4285IMPORTANT NOTICE

Precautions should be taken in handling and storing.

Please refer to the appropriate Material Safety Data Sheet for

further safety information.

In using KURARITYTM, please confirm related laws and regulations,

and examine its safety and suitability for the application.

For medical, health care and food contact applications,

please contact your KURARITYTM　representative for

specific recommendations. KURARITYTM should not be used

in any devices or materials intended for implantation in the human body.

Nothing contained herein constitutes a license to practice under

any patent and it should not be construed as an inducement to infringe

any patent. The user is advised to take appropriate steps to be sure

that any proposed use of the product will not result in patent infringement.

< Japan & Asia Pacific >Kurarity business development

Kuraray Co., Ltd,Phone: +81 3 6701 1598E-mail: [email protected]

< Europe, the Middle East, Africa >BU Elastomer

Kuraray Europe GmbH, Phone: +49 69 305 35853E-mail: [email protected]

< North, Central and South America >

Kuraray America Inc.Phone: +1-281-283-1711E-mail: [email protected]

If you need further information on KURARITYTM, please contact ;

●

●

●

●


25 26

Since the melt viscosity of KURARITY TM

depends on shear rate, a twin screw extruder is suitable for compounding.

Pre-drying is required if your twin screw extruder is not vented.�

An air Circulating oven dryer or vacuum oven dryer is recommended.

LA2250 : 60 ºC, 4 hours

LA4285 : 70-80 ºC, more than 6 hours

kneading�zone １

Twin extruder

Die headWatering cutter,�Under water cutter.Strand cutter,etc

Hopper

＜KURARITYTM＞Other resins,Additives,�etc

kneading�zone 2

Cutter

C2 50 ºC

C3 - C12 170 - 230 ºC

Die head 170 - 230 ºC�

Screw rotation : 200 rpm

Equipment : TEX 44XCT Twin Screw Extruder (JSW)

Screw diameter : 44mm, L/D=42

Barrel Temperature

Mel

t V

isco

sity（

Pa・

s ）


1.E+05

1.E+04

1.E+03

1.E+02

1.E+011.E+00 1.E+01 1.E+02 1.E+03 1.E+04 1.E+04

160℃180℃200℃

LA2250

Mel

t V

isco

sity（

Pa・

s ）


1.E+05

1.E+04

1.E+03

1.E+02

1.E+011.E+00 1.E+01 1.E+02 1.E+03

180℃200℃220℃240℃

LA4285IMPORTANT NOTICE

Precautions should be taken in handling and storing.

Please refer to the appropriate Material Safety Data Sheet for

further safety information.

In using KURARITYTM, please confirm related laws and regulations,

and examine its safety and suitability for the application.

For medical, health care and food contact applications,

please contact your KURARITYTM　representative for

specific recommendations. KURARITYTM should not be used

in any devices or materials intended for implantation in the human body.

Nothing contained herein constitutes a license to practice under

any patent and it should not be construed as an inducement to infringe

any patent. The user is advised to take appropriate steps to be sure

that any proposed use of the product will not result in patent infringement.

< Japan & Asia Pacific >Kurarity business development

Kuraray Co., Ltd,Phone: +81 3 6701 1598E-mail: [email protected]

< Europe, the Middle East, Africa >BU Elastomer

Kuraray Europe GmbH, Phone: +49 69 305 85984E-mail: [email protected]

< North, Central and South America >

Kuraray America Inc.Phone: +1-281-283-1711E-mail: [email protected]

If you need further information on KURARITYTM, please contact ;

●

●

●

●

1st Ed.2014.05 E

a novel acrylic block copolymer

〈 KURARITY TM 〉General Introduction

a novel acrylic block copolymer kurarity tm general ...p22 p23 p24 p25 by kuraray’s unique living...

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