thick film coating composition for metal

1
for a sufficient time to form a wet uncured coating comprising solids derived from the organic film-forming resin; contacting the wet uncured coating before it dries with an aqueous treatment solution that has an ad- justed pH from 7 to 11 wherein prior to the adjustment of the pH the solution consists essentially of water and at least one com- ponent selected from the group consisting of the following inorganic acids and salts thereof, molybdic acid, tungstic acid, poly- phosphoric acid, and polysilicic acid wherein the total concentration is 0.1 to 50 g/L; and drying the wet uncured coating into a dry solid coating. Thick Film Coating Composition for Metal u.s. Patent 5,688,598. Nov. 18, 1997 M.T. Keck et al., assignors to Morton International Inc., Chicago A nonblistering, thick-film primer coating composition, which comprises a hydroxy- functional polyester resin; a hydroxy-termi- hal polybutadiene resin; a blocked isocyanate crosslinker; an aminoplast crosslinker; and, a catalyst; which components comprise the resin solids of the primer composition, and the balance of the primer composition com- prises a pigment and a solvent. Anodized Aluminum Substrate Having Increased Breakdown Voltage u.s. Patent 5,688,606. Nov. 18, 1997 D. Mahulikar et al., assignors to Olin Corp., New Haven, Conn. A component for electronic applications comprising an anodizable metal core; an anodic film containing pores having first and second opposing surfaces bonded to the core; and a dielectric polymer filling the pores and constituting a continuous film that coats the anodic film except for the first surface having a thickness of 0.0025 to 0.051 mm and being effective to reduce the average surface roughness of the component. Acidic Cleaning Solution for Aluminum u.s. Patent 5,688,755. Nov. 18, 1997 S. Ikeda and M. Kamimura, assignors to Nippon Paint Co. Ltd., Osaka, Japan An acidic cleaning aqueous solution for aluminum and aluminum alloy com- prising at least one inorganic acid to pro- duce a pH of at most 2; oxidized metal ions; at least one surfactant; and 0.1 to 5 g/L of a mixture of at least one dihydric alcohol selected from the group consist- ing of l+2-butanediol and 1,2-pentanediol and at least one trihydric alcohol having at least two hydroxyl groups directly cou- pled with respect to two adjacent carbon atoms of a principal chain within one molecule. Epoxy Powder Coating with Wrinkle Finish U.S. Patent 5,688,878. Nov. 18, 1997 O.H. Decker et al., assignors to Morton International Inc., Chicago A powder coating composition adapted to provide a wrinkled finish, comprising an epoxy resin, a catalyst, and a curing agent, wherein the curing agent comprises meth- ylenedisalicylic acid. Circle 070 on reader information card WHEN IT COMES TO ION EXCHANGE RESINS, THERIGHT CHOICE IS CRYSTAL CLEAR... ResinTech hasthe most complete lineof ion exchange resins available for all your waterand wastewater treatmentneeds. From selective chelatingresins (forremoval of heavy metals) to granular activated carbon, all of our products are manufactured to the highest specifications, surpassing othersuppliers. ResinTech gives you prompt responses to yourion exchange applications, including recommending the bestresin for removal of contaminants fromwastewater (lead, zinc, copper, chrome, mercury, etc.), helpingyou meet regulatory limits. Ourextensive inventory will insure that your ordergetsshipped to you without delay. for MoreIdomlim Call(609) 3S4-152 ~ CH NC. INNOVATIOI~ IN ION E.XCHANGE ResinTech, lnc • 615 Deer Road • Cherry Hill, N108034-1409 • (609) 354 • 1152 • Telex:6503023149 • Fax:(6Gg) 354 • 616S Circle 107 on reader information card 166 METAL FINISHING JUNE 1998

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Page 1: Thick film coating composition for metal

for a sufficient time to form a wet uncured coating comprising solids derived from the organic film-forming resin; contacting the wet uncured coating before it dries with an aqueous treatment solution that has an ad- justed pH from 7 to 11 wherein prior to the adjustment of the pH the solution consists essentially of water and at least one com- ponent selected from the group consisting of the following inorganic acids and salts thereof, molybdic acid, tungstic acid, poly- phosphoric acid, and polysilicic acid wherein the total concentration is 0.1 to 50 g/L; and drying the wet uncured coating into a dry solid coating.

T h i c k F i l m C o a t i n g C o m p o s i t i o n f o r M e t a l u.s. Patent 5,688,598. Nov. 18, 1997 M.T. Keck et al., assignors to Morton International Inc., Chicago

A nonblistering, thick-film primer coating composition, which comprises a hydroxy- functional polyester resin; a hydroxy-termi- hal polybutadiene resin; a blocked isocyanate crosslinker; an aminoplast crosslinker; and, a

catalyst; which components comprise the resin solids of the primer composition, and the balance of the primer composition com- prises a pigment and a solvent.

A n o d i z e d A l u m i n u m S u b s t r a t e H a v i n g I n c r e a s e d B r e a k d o w n V o l t a g e u.s. Patent 5,688,606. Nov. 18, 1997 D. Mahulikar et al., assignors to Olin Corp., New Haven, Conn.

A component for electronic applications comprising an anodizable metal core; an anodic film containing pores having first and second opposing surfaces bonded to the core; and a dielectric polymer filling the pores and constituting a continuous film that coats the anodic film except for the first surface having a thickness of 0.0025 to 0.051 mm and being effective to reduce the average surface roughness of the component.

A c i d i c C l e a n i n g S o l u t i o n f o r A l u m i n u m u.s. Patent 5,688,755. Nov. 18, 1997

S. Ikeda and M. Kamimura, assignors to Nippon Paint Co. Ltd., Osaka, Japan

An acidic cleaning aqueous solution for aluminum and aluminum alloy com- prising at least one inorganic acid to pro- duce a pH of at most 2; oxidized metal ions; at least one surfactant; and 0.1 to 5 g/L of a mixture of at least one dihydric alcohol selected from the group consist- ing of l+2-butanediol and 1,2-pentanediol and at least one trihydric alcohol having at least two hydroxyl groups directly cou- pled with respect to two adjacent carbon atoms of a principal chain within one molecule.

E p o x y P o w d e r C o a t i n g w i t h W r i n k l e F i n i s h U.S. Patent 5,688,878. Nov. 18, 1997 O.H. Decker et al., assignors to Morton International Inc., Chicago

A powder coating composition adapted to provide a wrinkled finish, comprising an epoxy resin, a catalyst, and a curing agent, wherein the curing agent comprises meth- ylenedisalicylic acid.

Circle 070 on reader information card

WHEN IT COMES TO ION EXCHANGE RESINS, THE RIGHT CHOICE IS CRYSTAL CLEAR...

ResinTech has the most complete line of ion exchange resins available for all your water and wastewater treatment needs. From selective chelating resins (for removal of heavy metals) to granular activated carbon, all of our products are manufactured to the highest specifications, surpassing other suppliers.

ResinTech gives you prompt responses to your ion exchange applications, including recommending the best resin for removal of contaminants from wastewater (lead, zinc, copper, chrome, mercury, etc.), helping you meet regulatory limits.

Our extensive inventory will insure that your order gets shipped to you without delay.

for More Idomlim Call (609) 3S4-152

~ CH NC.

INNOVATIOI~ IN ION E.XCHANGE

ResinTech, lnc • 615 Deer Road • Cherry Hill, N108034-1409 • (609) 354 • 1152 • Telex:6503023149 • Fax:(6Gg) 354 • 616S

Circle 107 on reader information card

166 M E T A L F I N I S H I N G • J U N E 1998