get a grip on light with uvinul - basf usa - · pdf fileget a grip on light with uvinul ......

24
Get a grip on light with Uvinul ® ! Light stabilizers from BASF: Expect more!

Upload: buikien

Post on 14-Mar-2018

243 views

Category:

Documents


3 download

TRANSCRIPT

Page 1: Get a grip on light with Uvinul - BASF USA - · PDF fileGet a grip on light with Uvinul ... Please contact us if you have problems to solve in the field of poly- ... chairs,to be weathered

Get a grip on light withUvinul®!

Light stabilizers from BASF:Expect more!

Page 2: Get a grip on light with Uvinul - BASF USA - · PDF fileGet a grip on light with Uvinul ... Please contact us if you have problems to solve in the field of poly- ... chairs,to be weathered

Every sunset is a sunrise.Anywhere in the world

BASF offers worldwide service

Page 3: Get a grip on light with Uvinul - BASF USA - · PDF fileGet a grip on light with Uvinul ... Please contact us if you have problems to solve in the field of poly- ... chairs,to be weathered

BASF – The synergy of global disciplines.

As the worldwide leading chemical company, BASF is not only one

of the most important suppliers of plastics on the international mar-

ket, but also in the development and manufacturing of colorants,

stabilizers and other additives for the plastics processing industry.

We conduct intensive research in our laboratories to stabilize plas-

tics against UV radiation. Our chemists and physicists investigate

the degradation mechanisms of plastic aging. The knowledge gain-

ed in this process flows directly into the development for radical

scavengers and UV absorbers. Application testing takes place in

specially equipped laboratories and application centers. In-house

accredited analysis laboratories support our Department of Safety

and Regulations and, at the same time, serve our customers with

expertise in this field.

But we are not only concerned with protecting plastics. The safety

of our staff and environmentally compatible production are also our

top priorities. Our commitment to Responsible Care®1 and sustain-

able development forms the basis of our actions and hence also

guarantees sustainable success for our customers.

Please contact us if you have problems to solve in the field of poly-

mer stabilization. Your technical inquiries will be answered reliably,

competently and quickly via the regional application technology

centers in USA, China and Germany. With sales offices in over 120

countries and a worldwide logistics network, we guarantee that the

entire BASF range of colorants and stabilizers is available to you at

all times – on time and in the highest quality!

02 03

Page 4: Get a grip on light with Uvinul - BASF USA - · PDF fileGet a grip on light with Uvinul ... Please contact us if you have problems to solve in the field of poly- ... chairs,to be weathered

Nature serves as our model for UV protection. In the course of

evolution, it has developed the most sophisticated techniques for

protecting the cells in plants and animals from ultraviolet rays.

Today, protection from UV radiation not only plays an important role

in nature, but also in the world of plastics. Polymer degradation is

omnipresent - especially in outdoor applications. UV radiation can

stimulate molecules to such an extent that their chemical bonds

break. Bond breakage of this nature releases highly reactive radi-

cals, which are able to destroy other molecules. As further radicals

are formed by this reaction, the degradation of the polymer pro-

ceeds indefinitely in a chain reaction. If this chain reaction is not

interrupted, the plastic component soon loses its mechanical,

optical and coloristical properties.

In order that your plastics remain in form for as long as possible,

they need protection against UV radiation. Just as skin can be

protected with sunlotion, so can a plastic be protected by a UV

absorber. These compounds absorb the UV radiation and transform

the incident energy into harmless heat. The great advantage of

organic UV absorbers over substances such as commercially

available carbon black or TiO2 is that they neither compromise color

nor transparency and are easy to disperse in the polymer. This also

allows transparent or colored polymer applications to be protected

against UV radiation without problems.

To fulfill these tasks, UV absorbers must exhibit a number of essen-

tial properties. They must not be damaged by UV radiation them-

selves and they must be sufficiently thermostable for the extrusion

process. Their tendency to migrate must be low, since otherwise

the molecules easily drift to the surface where they may, for

example, be washed away by rain. Protection against UV radia-

tion is lost as a result and the durability of the polymer is not

sufficiently extended.

Hot on the heels of nature.Polymer stabilization

Page 5: Get a grip on light with Uvinul - BASF USA - · PDF fileGet a grip on light with Uvinul ... Please contact us if you have problems to solve in the field of poly- ... chairs,to be weathered

Besides the UV absorbers, the hindered amine light stabilizers

(HALS) help extend the durability of plastics exposed to UV radia-

tion. This product group has made many long-term applications

possible for the first time, especially for thin-walled applications

such as fibers and films.

In contrast to the physically active UV absorbers, the various HALS

react chemically. They interrupt the propagation of polymer degra-

dation by scavenging the radicals created at chain breaks, thus

rendering them harmless. Their high level of protection is due to

the fact that each stabilizer molecule is not only able to react once

but may react many times. This sustainably decelerates the chain

reaction of degradation.

As the HALS work chemically, they are suitable for applications in

any layer thickness. However, HALS molecules are also subject to

migration, especially if they have a low molecular weight (under

1,000 g/mol). Oligomeric HALS with a molecular weight of 2,000-

5,000 g/mol demonstrate clear advantages in this respect. If their

structure is matched to the application polymer, they show very

good compatibility with these polymers and do not migrate. BASF

works closely with its customers to jointly find the best solution

for the stabilization problem at hand.

04 05

Ultramid® B3S 1.0 % Sicopal® Blue K 6310 after 0 h

1,0

0,0

[µm]

-1,0

R- Profil Filter Ml DIN 4777 Lc = 0,025 mm

Taster TlE Lt = 1,50 mm 1,50

1,0

0,0

[µm]

-1,0

R- Profil Filter Ml DIN 4777 Lc = 0,025 mm

Taster TlE Lt = 1,50 mm 1,50

Roughness measurement Normal view 130x magnification

1,0

0,0

[µm]

-1,0

R- Profil Filter Ml DIN 4777 Lc = 0,025 mm

Taster TlE Lt = 1,50 mm 1,50

Ultramid® B3S 1.0 % Sicopal® Blue K 6310 with 0.2% Uvinul® 4050 H after 3,000 h

Ultramid® B3S 1.0 % Sicopal® Blue K 6310 without stabilization after 3,000 h

Page 6: Get a grip on light with Uvinul - BASF USA - · PDF fileGet a grip on light with Uvinul ... Please contact us if you have problems to solve in the field of poly- ... chairs,to be weathered

Accelerated weathering

As a means of reducing the time to test samples, these are

subjected to simulated environmental conditions (sunshine, rain

etc.) in accelerated weathering devices. The reduction in testing

time essentially results from the continuous radiation or weathering

of the samples.

We operate one of the largest European stations for accelerated

weathering to allow comparative tests to be carried out for our

customers or for our own test series related to R&D. The capacity

of this station is 17 m2 of irradiated or weathered surface and is

therefore sufficient for about 1,700 samples.

These tests are especially important if products from research

and development are to be tested in our customers’ applications.

On the basis of the data obtained from accelerated weathering, the

durability to be expected for polymers in the different applications

may be estimated.

The most important standards, according to which the

tests are performed, are:

• DIN EN ISO 4892-2 • DIN EN ISO 105-B 02

• DIN EN ISO 105-B 06 • DIN EN ISO 513

• DIN 53387 (1982) for PVC (SST: 50C) • SAE J 1960

• SAE J 1885 • AATCC 169 (1995)

• GMI 00002 • PV 1323

In principle, other light exposure and weathering tests,

based on other standards and regulations, may also be

adopted. Additional in-house accelerated weathering

stations are available to BASF and our customers in the

USA, Japan and in China.

The acceleration of reality.Weathering

Accelerated weathering

Page 7: Get a grip on light with Uvinul - BASF USA - · PDF fileGet a grip on light with Uvinul ... Please contact us if you have problems to solve in the field of poly- ... chairs,to be weathered

Since environmental conditions differ significantly between different

regions of the world, the test should be carried out in the region in

which the final product will be employed. Therefore, BASF also

carries out outdoor tests in many countries around the globe:

Spain, Kenya, Brazil, Ecuador, Mexico, USA as well as Thailand,

Australia, Japan and China.

06 07

Outdoor weathering

Although accelerated weathering yields meaningful and repro-

ducible data, it cannot simulate all environmental conditions. For

example the influence of air pollution, the shape and setup of the

final work piece and mechanical stress through wind, hail or snow

will not be covered by the standardized weathering of samples.

Thus, in addition to accelerated weathering, we perform outdoor

application together with our customers. Here BASF has set up a

weathering station close to Ludwigshafen offering a light exposure

area of over 100 m2, thus allowing larger items, such as garden

chairs, to be weathered over extended periods.

Outdoor weathering station Limburgerhof - Germany Outdoor testing in Almeria - Spain

Page 8: Get a grip on light with Uvinul - BASF USA - · PDF fileGet a grip on light with Uvinul ... Please contact us if you have problems to solve in the field of poly- ... chairs,to be weathered

Effective and efficient research is of ultimate importance when it

comes to being in a position to offer innovative solutions for the

market requirements of today and tomorrow. This is where the

BASF synergy concept once again proves itself. It not only leads to

excellent results in production optimization, but also gives rise to

extraordinary solutions, particularly in the field of research.

BASF is the worldwide largest chemical company and includes

plastics as well as colorants and light stabilizers in its portfolio.

Experience from these areas may not only be mutually combined,

but also used synergistically.

As a chemical company with a history stretching back almost 150

years, BASF draws upon extensive know-how founded upon a

broad knowledge base. State-of-the-art technology is available in

our laboratories to reveal degradation mechanisms and to develop

innovative solutions for stabilization problems.

The entire development process – from research to realization in

large-scale production through to product marketing – is subject to

the demands of Responsible Care®1.

With yearly more than 15,000 patents for the synthesis, produc-

tion, technology and analysis, BASF is one of the outstanding inno-

vation pools in the worldwide chemical industry. Not least for this

reason, we have succeeded in developing unique products in the

field of UV stabilization and, at the same time, in being able to offer

cost-effective solutions for standard applications.

We will maintain this successful course along with our customers in

the future and will continue offering innovations in UV stabilization.

All for a result.And a result for all.

Research

Page 9: Get a grip on light with Uvinul - BASF USA - · PDF fileGet a grip on light with Uvinul ... Please contact us if you have problems to solve in the field of poly- ... chairs,to be weathered

08 09

Page 10: Get a grip on light with Uvinul - BASF USA - · PDF fileGet a grip on light with Uvinul ... Please contact us if you have problems to solve in the field of poly- ... chairs,to be weathered

With its excellent physical and chemical properties, Uvinul® 5050 H

is your first choice when it comes to light stabilization of polyolefins.

It belongs to the group of hindered amine light stabilizers (HALS).

Polyolefins stabilized with Uvinul® 5050 H offer extreme long-term

stability and are excellent to process – irrespective of whether you

want to use them for films or thick-walled plastic products. As a

result of its spectrum of properties, Uvinul® 5050 H offers you a whole

range of astonishing advantages:

• Uvinul® 5050 H has significantly little effect on alkali-sensitive

pigments and minimal interaction with acids. The latter plays an

important role especially in agricultural films. This property also

makes Uvinul® 5050 H a suitable stabilizer for PVC.

• In tape production, Uvinul® 5050 H is outstanding in respect of its

extremely low water carry-over. Using Uvinul® 5050 H as an additive

only minimally alters the surface, such that affinity to water is not

significantly increased. You can run your plants significantly faster

than with every competing product – an enormous advantage for

your production!

• The use of Uvinul® 5050 H to stabilize polyolefin films permits lower

welding temperatures than with other oligomeric HALS compounds.

This makes polyolefin films easier and quicker to weld. Especially in

packaging lines, in which stretch or shrink film covers are welded, you

are not only able to save time but also the associated costs.

The highlight in light stabilization.Uvinul® 5050 H

control

0.4 % Uvinul® 5050 H

0.2 % Uvinul® 4050 H0.2 % Uvinul® 5050 H

0.4 % HALS 4

0.4 % HALS 5

0.4 % HALS 1

0.4 % HALS 9

5 100 15

haul-off speed (m/min)

Max. haul-off speed at tape production without malfunction due to water carry-over

20 25 30 35 40

The effect of light stabilizers on haul-off speed

Page 11: Get a grip on light with Uvinul - BASF USA - · PDF fileGet a grip on light with Uvinul ... Please contact us if you have problems to solve in the field of poly- ... chairs,to be weathered

• Uvinul® 5050 H exerts no negative influence on the surface quality of

white (TiO2) m-LLDPE films. Conversely, films stabilized with competing

products show melt fracture – a disadvantage you can simply avoid

with Uvinul® 5050 H.

Manufacturing guidelines:

The following settings should be used when batching

Uvinul® 5050 H (10-50 %):

• The feeding zone should be cooled to 40-60C.

• The first heating zone should be set to 80-100C,

whereas the subsequent heating zones are set

as they are normally.

This modification has no negative impact on the

throughput of the plant whatsoever.

10 11

Surface roughness in the manufacture of TiO2-pigmented LLDPE films

stabilized with Uvinul® 5050 H stabilized with competing product - melt fracture

Influence of HALS on heat seal properties

9

8

7

6

5

4

3

2

1

0

120°C110°C 130°C

tensile strength (N/mm2)

Welding of 40 µm LDPE/EVA films after 45 days storage

control 0.2% Uvinul® 5050 0.2% HALS 1

Page 12: Get a grip on light with Uvinul - BASF USA - · PDF fileGet a grip on light with Uvinul ... Please contact us if you have problems to solve in the field of poly- ... chairs,to be weathered

Uvinul® 4050 H

Uvinul® 4050 H is a highly effective light stabilizer for polyolefins,

ABS and polyamide, which also exhibits very good compatibility with

pigments.

The melting range of Uvinul® 4050 H (155-160C) is ideally suited for

extrusion for these polymers. For example, in polyamides a low melting

point (e.g., HALS 3: 81-85C) means that the product may not be

homogenously distributed into the polymer during extrusion.

The thermostability of Uvinul® 4050 H is also extraordinarily high.

A TGA at 300C reveals a loss of < 1 % for Uvinul® 4050 H and of

more than 7 % for HALS 3 (see graph page 13).

Polyolefins such as polypropylenes and higher density polyethylenes

achieve very high light and weather fastness with Uvinul® 4050 H.

The yellowing occurring with exposure of ABS to light sources is

significantly reduced with Uvinul® 4050 H; even tertiary HALS

often used for ABS cannot keep up with the excellent performance of

Uvinul® 4050 H.

The stability of polyamides can also be considerably increased using

Uvinul® 4050 H. The surface degradation arising through weathering

with the formation of cracks and chalking is significantly retarded with

Uvinul® 4050 H in combination with Uvinul® 3035. Polyamide fibers can

be effectively light protected with a combination of Uvinul® 4050 H and

Uvinul® 5050 H.

Effectiveness without a downside.Uvinul® 4050 H / Uvinul® 3030, 3035, 3039 / standard products

Page 13: Get a grip on light with Uvinul - BASF USA - · PDF fileGet a grip on light with Uvinul ... Please contact us if you have problems to solve in the field of poly- ... chairs,to be weathered

Uvinul® 3039 is a liquid UV absorber, which, as a consequence of its

good compatibility with plasticizers, is extremely well-suited for use

with PVC-P (plasticized PVC) and plastisols.

Uvinul® 3035 offers excellent performance in the protection of PVC-U

(unplasticized PVC).

Standard products. Besides its stabilization stars, BASF also offers

a whole range of standard products, with which you are equipped for

every application. The range of light stabilizers is rounded off with

standard UV absorber products, including Uvinul® 3008, 3026, 3027,

3028, 3029 and 3033 P, as well as a simple monomeric HALS,

Uvinul® 4077 H.

Apart from its diverse individual products, BASF offers you the blend

Uvinul® 3434 C, specially tailored to the demands of polyurethane

stabilization. As a fluid formulation, Uvinul® 3434 C can be optimally

metered into the RIM process.

12 13

0

20

40

60

80

100

mas

s %

250 260 270 280 290 300 310 320 330 340 350

temp C

Uvinul® 4050 H HALS 3temp C

40

35

30

25

20

15

10

5

0

thickness: 0.5 mm

PVC compound + 0.5 % UVA

Yello

wne

ss in

dex

Uvinul® 3035

unstabilized

UV 2

Initial color in PVC-U TGA (20C/min; air)

Uvinul® 3030 / 3035 / 3039 / standard products

Cyanacrylates are excellent UV absorbers, which, through their stabi-

lizing effect, serve to prevent yellowing on exposure to light. The cyan-

acrylates distinguish themselves in that the color of the polymer is not

affected even at higher concentrations.

Uvinul® 3030 as a UV absorber with high molecular mass (> 1,000

g/mol) has very little volatility. Furthermore, it is highly thermostable

making it especially suitable for the use in polymers at high processing

temperatures (e.g., PC, PET). Uvinul® 3030 also offers you the pro-

cessing advantage that it does not lead to the commonly experienced

deposition on the cooling roller in the manufacture of PC sheets. Hence

it contributes to a continuous process with minimized setting-up times

and supports your smooth and economical production. Moreover,

Uvinul® 3030 confers excellent protection against yellowing for highly

transparent polycarbonate parts without impairing clarity or base color.

Page 14: Get a grip on light with Uvinul - BASF USA - · PDF fileGet a grip on light with Uvinul ... Please contact us if you have problems to solve in the field of poly- ... chairs,to be weathered

With a worldwide market share of about 60 %, the polyolefins

represent the largest group of polymers used today. Besides the

large number of different copolymers, polypropylene and poly-

ethylene are most important. By altering processing parameters,

it is possible today to manufacture polyolefins covering a broad

application spectrum.

Polypropylene (PP) is partially crystalline and, at a lower density,

has higher stiffness and strength than polyethylene. Polymerization

takes place in the low-pressure process on different catalysts.

Dependent upon the polymer chain structure, isotactic, syndiotactic

and atactic types are distinguished. Of these, the isotactic PPs are

of the greatest importance in terms of quantities.

The injection molding types are generally manufactured into vehicle

parts, transport boxes, or garden chairs at melt temperatures of

250-270C. Isotactic PP is manufactured into fibers for carpet yarns

in the melt spinning process. Films are used as BOPP (biaxial

oriented PP), for example for cigarette and silage films. Split tapes,

fiber fleece and insulation sheets are other important applications.

The majority of polypropylenes are manufactured as copolymers.

This leads to low glass transition temperatures and the application

options for the PP at low temperatures are improved accordingly as

a result of a lower tendency towards embrittlement.

Polypropylenes are primarily damaged by light at the wavelengths

of 290-300 nm and 310-360 nm.

UV protection for

Polyolefins

Blown film extrusion Cast film extrusion

Page 15: Get a grip on light with Uvinul - BASF USA - · PDF fileGet a grip on light with Uvinul ... Please contact us if you have problems to solve in the field of poly- ... chairs,to be weathered

The polyethylenes (PE) are sub-divided into the classes LDPE,

LLDPE and HDPE dependent on their density and degree of

branching. Polyethylenes are resistant against most chemicals,

such as acids and alkalis, and are used, for example, as pipes,

bottle crates and films. Their tendency to macerate in aliphatic and

aromatic solvents drops with increasing density; some HDPE types

are even licensed as vehicle fuel tanks. PE mainly degrades through

UV radiation at the wavelengths of 290-300 nm and 310-340 nm.

LDPE is manufactured in the high-pressure process without cata-

lysts. This process leads to a highly branched product of low den-

sity. LDPE usually requires no process stabilization and is easy to

process across a wide temperature range. It requires extrusion

temperatures of around 200C for the manufacture of films and

up to 260C in injection molding extrusion.

LLDPE is produced catalytically in the low-pressure process,

whereby molecule chains with short chain branches mainly arise.

These polymers are mostly used as mixing components in films,

as well as for fibers and rotation molding parts.

Metallocene-catalyzed types (m-LLDPE) are a special type of

LLDPE. They are characterized by a particularly narrow molecular

weight distribution and this is also associated with high strength.

However, as a result of their poor processibility, m-LLDPE types

usually have to be combined with fluoroelastomers.

HDPE is also manufactured catalytically in the low-pressure

process. A significantly higher density arises from the largely un-

branched polymer chains and greater strength compared with the

aforementioned types. Melt temperatures around 250C are required

for film extrusion. In injection molding, temperatures of over 300C

are achieved.

14 15

Product LDPE HDPE PP LDPE/EVA LLDPE HDPE PPmolding molding molding film film film film

Uvinul® 5050 HHALS[Hindered Amine

Light Stabilizers]

recommended

suitable

UV absorbers

Uvinul® 4077 H

Uvinul® 4050 H

Uvinul® 3008

Uvinul® 3026

Uvinul® 3027

Uvinul® 3028

Uvinul® 3030

Page 16: Get a grip on light with Uvinul - BASF USA - · PDF fileGet a grip on light with Uvinul ... Please contact us if you have problems to solve in the field of poly- ... chairs,to be weathered

PVC

For PVC, the distinction is made between unplasticized PVC (PVC-U),

plasticized PVC (PVC-P) and plastisoles. Emulsion, suspension and

solid polymerization are suitable manufacturing methods. PVC has a

tendency to photochemically degrade and is therefore provided with

light stabilization (its sensitivity is particularly high for radiation at

wavelengths of 310-325 nm). Dependent on the manufacturing

process, processing temperatures of 120C to 220C are common.

• Unplasticized PVC is used for floor coverings, films, pipes, credit

cards, window profiles and house building materials.

• Plasticized PVC is formed by injection molding into shoe soles,

motorbike and cycle grips. Hoses, shower curtains, conveyor belts

and self-adhesive films may be manufactured by extrusion.

• Plastisoles are applied to different substrates in diverse ways.

Rainwear and canvas materials are examples of products obtained.

UV protection for

PVC / PA

Product PVC-U PVC-P

Uvinul® 5050 HHALS

UV absorbers Uvinul® 3008

Uvinul® 3030

Uvinul® 3033 P

Uvinul® 3035

Uvinul® 3039

55

50

45

40

35

30

25

20

15

10

0.5 % Uvinul® 3035control 0.5 % UV 2

Yello

wne

ss in

dex

91 96 115

0 h

1,000 h

1,500 h

2,000 h

Exposure of unplasticized PVC (ISO 4892-2)

recommended

suitable

Page 17: Get a grip on light with Uvinul - BASF USA - · PDF fileGet a grip on light with Uvinul ... Please contact us if you have problems to solve in the field of poly- ... chairs,to be weathered

PA

The crystallinity of polyamide varies between 10 and 60 percent.

The relationship between the amide groups and the aliphatic groups

is crucial for a high modulus of elasticity. The higher the amide

group content, the more the intermolecular hydrogen bonding

between the amide becomes apparent. This raises the strength, and

polyamide is therefore mainly used for high quality fibers, machine

parts, such as gear wheels, and for pipes or ski shoes. Polyamide

must be light stabilized for outdoor use. It is particularly damaged

by radiation between 290 and 315 nm.

16 17

Product PA

Uvinul® 5050 HHALS[Hindered Amine

Light Stabilizers]

UV absorbers

Uvinul® 4077 H

Uvinul® 4050 H

Uvinul® 3028

Uvinul® 3030

Uvinul® 3035

Injection molding

Page 18: Get a grip on light with Uvinul - BASF USA - · PDF fileGet a grip on light with Uvinul ... Please contact us if you have problems to solve in the field of poly- ... chairs,to be weathered

PS

Polystyrene (PS) includes various amorphous and transparent

polymers. Standard PS is chiefly processed by injection molding, for

example into packaging in the food and pharmaceutical industries

or into disposable cutlery, drinking cups and CD sleeves. Due to

their low thermal stability, all polystyrenes are thermostabilized

and also UV-stabilized for outdoor applications. PS degrades

predominantly with radiation of wavelengths of 310-325 nm.

UV protection for

PS / ABS

Product PS

Uvinul® 4077 HHALS[Hindered Amine Light Stabilizers]

UV absorbers

Uvinul® 4050 H

Uvinul® 3027

Uvinul® 3028

Uvinul® 3033 P

Uvinul® 3035

Uvinul® 3030

recommended

suitable

Page 19: Get a grip on light with Uvinul - BASF USA - · PDF fileGet a grip on light with Uvinul ... Please contact us if you have problems to solve in the field of poly- ... chairs,to be weathered

ABS

ABS is a copolymer of acrylonitrile, butadiene and styrene with a

high impact strength and better chemical resistance than pure

polystyrene. ABS is often used in casing of domestic appliances

such as refrigerators, vacuum cleaners and drilling machines,

but it is also used in vehicle interiors or toys (e.g., LEGO®2 blocks).

Since the UV stability of ABS is low, it has to be light-stabilized for

very many applications. ABS is especially sensitive to UV light in

the wavelength range of 300-370 nm.

18 19

30

25

20

15

10

5

0

0 h

500 h

1,000 h

1,500 h

2,000 h

control

Pigment loading: 1 % TiO2

0.3 % HALS 30.3 % UV 1

0.5 % Uvinul® 4050 H

Yello

wne

ss in

dex

Product ABS

Uvinul® 5050 HHALS[Hindered Amine

Light Stabilizers]

UV absorbers

Uvinul® 4050 H

Uvinul® 3027

Uvinul® 3028

Uvinul® 3030

Uvinul® 3033 P

Uvinul® 3035Exposure of white pigmented ABS (DIN EN ISO 105-B 06)

Page 20: Get a grip on light with Uvinul - BASF USA - · PDF fileGet a grip on light with Uvinul ... Please contact us if you have problems to solve in the field of poly- ... chairs,to be weathered

PC

Polycarbonate is an amorphous plastic, manufactured at high

temperatures; 320C is not uncommon. Blends with styrene poly-

mers and also polyesters improve the property profile and make the

material available for a broader range of applications. PC undergoes

various degradation reactions on exposure to light (e.g., photo-Fries

rearrangement) and must therefore be light-stabilized.

The greatest damage is caused by UV radiation of wavelengths

of 280-340 nm. Sheeting for greenhouses and winter gardens,

electronics casings, automobile parts such as headlights as well

as CDs and DVDs are the most important applications.

UV protection for

PC / PET

Product PC

Uvinul® 3029UV absorbers

Uvinul® 3030

Uvinul® 3035

recommended

suitable

Page 21: Get a grip on light with Uvinul - BASF USA - · PDF fileGet a grip on light with Uvinul ... Please contact us if you have problems to solve in the field of poly- ... chairs,to be weathered

PET

The condensation polymer PET is a partly crystalline plastic, which

is also available as an amorphous material for certain applications.

Its very good transparency, its high strength and food compatibility

make drink bottles one of the main applications for amorphous PET.

PET is also used for functional fibers, labeling shrink film, substrate

films for electronic applications, as well as for food and pharma-

ceuticals packaging. As PET only absorbs UV up to a wavelength

of approximately 320 nm, additional UV absorbers must be used in

packaging for protection contents e.g., vitamins or dyes. PET itself

is mainly damaged by radiation of wavelengths of 290-320 nm.

20 21

Product PET

Uvinul® 5050 HHALS[Hindered Amine

Light Stabilizers]

UV absorbers

Uvinul® 4050 H

Uvinul® 3026

Uvinul® 3027

Uvinul® 3030

Uvinul® 3033 P

Uvinul® 3035

Uvinul® 3039

Page 22: Get a grip on light with Uvinul - BASF USA - · PDF fileGet a grip on light with Uvinul ... Please contact us if you have problems to solve in the field of poly- ... chairs,to be weathered

PMMA

As a very UV-stable polymer, PMMA is found in many outdoor appli-

cations and is additionally stabilized for long-term applications. Its

extreme surface hardness ensures good scratch resistance. PMMA

is therefore favored for transparent applications, for example shee-

ting, spectacle glasses, electronics casings and optical storage

devices. PMMA suffers the greatest photochemical damage through

short wave UV radiation (280-315 nm).

UV protection for

PMMA / Polyurethane

Product PMMA

Uvinul® 3026UV absorbers

Uvinul® 3027

Uvinul® 3028

Uvinul® 3030

Uvinul® 3033 P

Uvinul® 3035

Uvinul® 3039

recommended

suitable

Page 23: Get a grip on light with Uvinul - BASF USA - · PDF fileGet a grip on light with Uvinul ... Please contact us if you have problems to solve in the field of poly- ... chairs,to be weathered

Polyurethanes

Polyurethanes can be produced in such a variety that the applica-

tions range from soft foams through attractive surface films (spray

skin for the automotive industry) to hard-molded parts such as

gear-wheels for electric motors. Articles colored with carbon black

are additionally provided with light stabilizers for diverse appli-

cations in automobile interiors as well as all outdoor applications.

Polyurethanes are particularly susceptible to UV radiation damage

in the 330-400 nm wavelength range.

22 23

Product TPU RIM PUfoam

Uvinul® 5050 HHALS

UV absorbers

Uvinul® 3027

Blend Uvinul® 3434 C

Uvinul® 3028

Uvinul® 3030

Uvinul® 3033 P

Uvinul® 3035

Uvinul® 3039

HALS = Hindered Amine Light Stabilizers

Uvinul® 3026

Page 24: Get a grip on light with Uvinul - BASF USA - · PDF fileGet a grip on light with Uvinul ... Please contact us if you have problems to solve in the field of poly- ... chairs,to be weathered

EVP

1604

e

BASF AktiengesellschaftPerformance Chemicals forCoatings, Plastics and Specialties67056 LudwigshafenGermany

The data contained in this publication are based on our current knowledge and experience. In view of

the many factors that may affect processing and application of our product, these data do not relieve

processors from carrying out their own investigations and tests; neither do these data imply any gua-

rantee of certain properties, nor the suitability of the product for a specific purpose. Any descriptions,

drawings, photographs, data, proportions, weights etc. given herein may change without prior informa-

tion and do not constitute the agreed contractual quality of the product. It is the responsibility of the

recipient of our products to ensure that any proprietary rights and existing laws and legislation are

observed.

® = registered trademark of BASF Aktiengesellschaft

®1 = registered trademark of the European Chemical Industry Council (CEFIC)

®2 = registered trademark of the LEGO Group

®3 = registered trademark of Ciba Specialty Chemicals Inc.

®4 = registered trademark of Cytec Industries Inc.

®5 = registered trademark of Clariant International AG

www.basf.com/lightstabilizers

Contact worldwide

AsiaBASF South East Asia Pte Ltd7 Temasek Boulevard35-01 Suntec Tower OneSingapore 038987SingaporeTel.: + 65 6337 0330Fax: + 65 6432 3434

EuropeBASF AktiengesellschaftPerformance Chemicals for Coatings, Plastics and SpecialtiesE-EVP/E - J 55067056 LudwigshafenGermanyTel.: + 49 621 60-72736Fax: + 49 621 60-58320

North AmericaBASF CorporationPerformance Chemicals forPlastics and Specialties100 Campus DriveFlorham Park, NJ 07932USATel.: + 1-800-933-2273Fax: + 1-973-245-6733

Eastern Europe, Africa, West AsiaBASF AktiengesellschaftRegional Business ManagementPerformance ChemicalsEUM/ME - Benckiserplatz 167056 LudwigshafenGermanyTel.: + 49 621 60-76429Fax: + 49 621 60-6676429

South AmericaBASF S.A.Estrada Samuel Aizemberg1707-Bloco C-3°09851-550 São Bernardo do Campo - SPBrazilTel.: + 55 11 4343-3637Fax: + 55 11 4343-2040

HALS 1: Chimassorb®3 944

HALS 2: Chimassorb®3 119

HALS 3: Tinuvin®3 770

HALS 4: Tinuvin®3 622

HALS 5: Tinuvin®3 783

HALS 6: Tinuvin®3 123

HALS 7: Cyasorb®4 3346

HALS 8: Cyasorb®4 3529

HALS 9: Hostavin®5 N30

UV 1: Tinuvin®3 P

UV 2: Tinuvin®3 312