1
lution of a rare earth metal salt selected from the group consisting of cerium salts and yttrium salts, wherein the chemical concentra- tion of rare earth metal salt is from about 10 to 350 mM. TWO-COAT CHIP-RESISTANT ELECTRODEPOSITED COATING COMPOSITION U.S. Patent 6,248,225. June 19, 2001 T. Palaika et al., assignors to PPG Industries Ohio, Inc., Cleveland A process of electrocoating electri- cally conductive substrates with two electrodeposited layers com- prising electrodepositing an elec- trically conductive coating from a composition comprising a curable ionic resin and an electroconduc- tive pigment; at least partially curing the electrodeposited coat- ing so as to make the coating elec- trically conductive; electrodepos- iting a second coating on the electrically conductive coating, the second coating being depos- ited from a composition compris- ing a curable ionic polyurethane resin that contains ionic salt ter- minal end groups and a polymeric segment derived from an active hydrogen-containing polymer; and curing the second coating. METAL ALLOY HALIDE ELECTROPLATING BATHS U.S. Patent 6,248,228. June 19, 2001 H.D. Billman et al., assignors to Technic, Inc., and Specialty Chemical System, Inc., Cranston, R.I. A method of improving the plat- ing performance of an aqueous halide ion electrolyte electroplat- ing bath comprising adding an ef- fective amount of a salt of an alkyl and/or alkanol sulfonic acid to the bath to operate the bath at higher current densities, wherein the added salt is selected from the group consisting of alkali metal, alkaline earth metal, and ammo- nium or substituted ammonium salts. WIPE SOLVENT PROCESS U.S. Patent 6,248,403. June 19, 2001 J.D. Weir and J.S. McLaughlin, assignors to Northrop Grumman Corp., Los Angeles, Calif. A non-chrome process for the pre- treatment of a substrate surface comprising bare aluminum or alu- minum alloy, which comprises de- oxidizing the substrate surface, wiping with a wipe solvent com- position consisting essentially of 95 to 99.9% by volume of at least one environmentally-acceptable volatile organic solvent and 0.1 to 5% by volume of 3-glycidoxypro- pyltrimethoxy silane polyfunc- tional coupling agent, which hy- drolyzes to form silanol groups having a bonding affinity for the substrate surface and for a paint primer coating to be applied thereto. ADHESIVE FOR ELECTROLESS PLATING U.S. Patent 6,248,428. June 19, 2001 M. Asai et al., assignors to Ibiden Co., Ltd., Gifu, Japan An adhesive for electroless plat- ing formed by dispersing cured YOUR OA~ SOURCE FOR ALL YOUR F/N/S/f//~ NEEDS Chemicals Metals Plating Accessories Heating and Cooling • Waste Treatment i'~.~ equiwn~nt • Buffing Compounds • Abrasive Finishing I//#t = M Boe~ #329 Circle 121 on reader card or go to www.thru,to/webconnect • 1000 Gal. PE 45 ° cone bottom tank • 2 expandable to 4 cu. ft. filter press • 4 hp air mixer & 1" diaphragm pump • Analyzers, sensors, pumps available • 6'x10' skid with piping, ladder & platform ENVIRO SOLUTIONS WASTEWATER TREATMENT, RECYCLING AND REUSE 7439 HUNTERS LAND SAN ANTONIO, TX 78249 210 696 6300 FAX 210 696 6301 WWW.LSTINDUSTRIES.COM Circle 142 on reader card or go to www.thru.to/webconnect Quality Products Innovative Solutions Incomparable Service PLASTIC FABRICATING • Process Tanks • Special Jobs • Exhaust & Ducting • Materials • Galvanizing Tanks • On-site Installation BULKSTORAGE TANKS STEELFABRICATING ACCESSORIES APR Plastic Fabricating, Inc. You've come ~o the right place? 2312 Cass St., Fort Wayne, iN 46808 260-482-8523 Fax: 260-483-5616 www.aprtanks.com Circle 157 on reader card or go to www.thru.to/webconnect June 2002 163

Two-coat chip-resistant electrodeposited coating composition

Embed Size (px)

Citation preview

lution of a rare earth metal salt selected from the group consisting of cerium salts and yt t r ium salts, wherein the chemical concentra- tion of rare earth metal salt is from about 10 to 350 mM.

T W O - C O A T C H I P - R E S I S T A N T E L E C T R O D E P O S I T E D C O A T I N G C O M P O S I T I O N U.S. Patent 6,248,225. June 19, 2001 T. Palaika et al., assignors to PPG Industries Ohio, Inc., Cleveland

A process of electrocoating electri- cally conductive substrates with two electrodeposited layers com- prising electrodepositing an elec- trically conductive coating from a composition comprising a curable ionic resin and an electroconduc- tive pigment; at least partially curing the electrodeposited coat- ing so as to make the coating elec- trically conductive; electrodepos- i t ing a second coating on the electr ically conductive coating, the second coating being depos- ited from a composition compris- ing a curable ionic polyurethane

resin that contains ionic salt ter- minal end groups and a polymeric segment derived from an active h y d r o g e n - c o n t a i n i n g polymer ; and curing the second coating.

M E T A L A L L O Y H A L I D E E L E C T R O P L A T I N G B A T H S U.S. Patent 6,248,228. June 19, 2001 H.D. Billman et al., assignors to Technic, Inc., and Specialty Chemical System, Inc., Cranston, R.I.

A method of improving the plat- ing performance of an aqueous halide ion electrolyte electroplat- ing bath comprising adding an ef- fective amount of a salt of an alkyl and/or alkanol sulfonic acid to the bath to operate the bath at higher current densities, where in the added salt is selected from the group consisting of alkali metal, alkaline earth metal, and ammo- nium or subst i tuted ammonium salts.

W I P E S O L V E N T P R O C E S S

U.S. Patent 6,248,403. June 19, 2001

J.D. Weir and J.S. McLaughlin, assignors to Northrop Grumman Corp., Los Angeles, Calif.

A non-chrome process for the pre- t rea tment of a substrate surface comprising bare aluminum or alu- minum alloy, which comprises de- oxidizing the substrate surface, wiping with a wipe solvent com- position consisting essentially of 95 to 99.9% by volume of at least one environmental ly-acceptable volatile organic solvent and 0.1 to 5% by volume of 3-glycidoxypro- py l t r imethoxy si lane polyfunc- tional coupling agent, which hy- drolyzes to form silanol groups having a bonding affinity for the substrate surface and for a paint p r imer coa t ing to be appl ied thereto.

A D H E S I V E F O R E L E C T R O L E S S P L A T I N G

U.S. Patent 6,248,428. June 19, 2001 M. Asai et al., assignors to Ibiden Co., Ltd., Gifu, Japan

An adhesive for electroless plat- ing formed by dispersing cured

YOUR OA~ SOURCE FOR ALL YOUR F /N /S / f / / ~ NEEDS

C h e m i c a l s

M e t a l s

P la t ing A c c e s s o r i e s

H e a t i n g and Coo l ing

• W a s t e T r e a t m e n t

i ' ~ . ~ equiwn~nt • Buf f ing C o m p o u n d s

• Ab ras i ve Fin ish ing

I//#t = M Boe~ #329

Circle 121 on reader card or go to w w w . t h r u , t o / w e b c o n n e c t

• 1000 Gal. PE 45 ° cone bottom tank • 2 expandable to 4 cu. ft. filter press • 4 hp air mixer & 1" diaphragm pump • Analyzers, sensors, pumps available • 6'x10' skid with piping, ladder & platform

ENVIRO SOLUTIONS WASTEWATER T R E A T M E N T ,

R E C Y C L I N G AND R E U S E 7439 HUNTERS LAND

SAN ANTONIO, TX 78249 210 696 6300 FAX 210 696 6301

WWW.LSTINDUSTRIES.COM

Circle 142 on reader card or go to w w w . t h r u . t o / w e b c o n n e c t

Quality Products Innovative Solutions Incomparable Service

PLASTIC FABRICATING • Process Tanks • Special Jobs • Exhaust & Ducting • Materials • Galvanizing Tanks • On-site Installation

BULK STORAGE TANKS STEEL FABRICATING

ACCESSORIES

APR Plastic Fabricating, Inc. You've come ~o the right place?

2312 Cass St., Fort Wayne, iN 46808 260-482-8523 Fax: 260-483-5616

www.aprtanks.com

Circle 157 on reader card or go to w w w . t h r u . t o / w e b c o n n e c t

June 2002 163