coating composition

A method of antiquing a pewtercomponent comprising forming anoxide on the component by con­tacting with an oxidizing solutioncomprising an acid salt of copper,selenious acid, hydrochloric acid,and a surface activator; rinsing tostop the formation of the oxide;and buffing to form an antiquefinish.

MITAL SURFACE TREATMENTU.S. Patent 6,013,377. Jan. 11, 2000T. Kanda et al., assignors to NipponPlant Co., Ltd., Osaka, Japan

A surface-treated metal materialwherein a film is formed on ametal surface comprising an or­ganic polymer compound contain­ing 5 to 100 mg of carbon per m2

and a phosphoric acid compoundcontaining 1 to 30 mg of phospho­rus per m2 .

COMPOSITE CHROMIUM PLAnNGU.S. Patent 6,013,380. Jan. 11,2000A. Harayama and T. Imai, assignorsto Teiko Piston Ring Co. Ltd., Tokyo

A composite chromium platingfilm comprising hard particlescontained in a network of cracksformed in a hard chromium plat­ing film, wherein the hard parti­cles consist of SiaN 4 and the dis­persion ratio is 3 to 15% byvolume.

COAnNG COMPOSITIONU.S. Patent 6,013,733. Jan. 11, 2000D.L. Singer et al., assignors to PPGIndustries Ohio Inc., Cleveland

A curable coating compositioncomprising 80 to 99.9% by weightof at least one film-forming resin­ous material, and 0.01 to 3% ofcurable coating composition of afunctional, nongelled flow controlcopolymer.

POLYCME11I-JACRYUCRESlN·BASED COAnNGU.S. Patent 6,013,739. Jan. 11, 2000H.P. Rink et al., assignors to BASFCoatings AG, Muenster-Hiltrup,Germany

A coating composition comprisinga binder consisting of a hydroxylgroup containing polyacrylateresin and at least one cross­linking agent.

POWDER PAINTU.S. Patent 6,015,095. Jan. 18, 2000

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We custom fabricate your anode from our platinum cladnIobium stock. ... 1215or 250 mlcrolnch platinum clad,sinele or double sided platinum, solid or expanded mesh,titanium/niobium frame.

Ion Exchange Cartridges

Ion Exchange Membranes

Ion Exchange Resin

• Electrocoating - Anionic and Cationic Paint Baths• Metal Recovery - Metal Finishing Baths• Recovery of Pickle Liquors• Production of Organic Acids• EDI Systems

• Precious Metal Recovery• Heavy Metal Recovery• Metal recovery from Acidic Solutions• Deionization, Dealkalization, Softening

• Inexpensive cartridges for quick determination ofapplication feasibility.

For complete information on these and other products contact us at:

Sybron Chemicals Inc.Purification Through InnovationBinningham Rd., Binningham, NJ 08011Phone: 609-893-1100 I 800-678-0020Fax: 609-894-8641Web: www.sybronchemicals.com

Circle 064 on reader information card

110 Metal Finishing