- Email: [email protected]
Hexavalent chromium reduction
one member selected from a group consisting of bismuth compounds and copper compounds; a pyrophosphoric compound; and an iodic compound. COATING
COMPOSITION
U.S. Patent 5,948,851. Sept. 7, 1999 D.R. Anton, assignors to E.I. du Pont de Nemours and Co., Wilmington, Del.
A coating composition containing 45 to 80% by weight of a binder and 20 to 55% of a carrier liquid; wherein the binder comprises 30 to 89% of an acrylic polymer consisting of polymerized hydroxyl containing monomers of hydroxy alkyl (methjacrylate; l-20% by weight of an acrylic polymeric additive consisting of 5 to 90% of polymerized monomers selected from the group consisting of alkyl (methjacrylates and 10 to 50% of an organic cross-linking agent; and where a cured layer of the coating of the composition has a combination of advancing water contact angle of at least 100” and a hexadecane advancing contact angle of at least 40”.
POWDER
PAINT
COMPOSITION
U.S. Patent 5,948,866. Sept. 7, 1999 H. Takeda et al., assignors to Dainippon Ink and Chemicals Znc., Tokyo
A powder paint composition comprising a resin composition obtained by adding a multifunctional vinyl copolymer, which has a glass transition temperature of 0°C or less and an epoxy group, to a composition that contains a polycarboxylic acid and a multifunctional vinyl copolymer, which has a glass transition temperature of 40°C or greater and an epoxy group. PEENING
HEXAVALENT REDUCTION
CHROMIUM
U.S. Patent 5,951,457. Sept. 14, 1999 B.R. James, Bowie, Md., assignor to Chemical Land Holdings Inc., Dallas
A method to reduce hexavalent chromium in soils, sediments, industrial waste, and other contaminated materials using ascorbic acid.
PROCESS
U.S. Patent 5,950,470. Sept. 14, 1999 K.M. Prewo et al., assignors to United Technologies Corp., Hartford, Conn.
A method and apparatus for peening the internal surface of a nonferromagnetic hollow part. PRACTICE
SPRAY
GUN
U.S. Patent 5,951,296. Sept. 14, 1999 R. J. Klein, assignor to University of Northern Iowa Foundation (UNIF), Cedar Falls, Iowa
An optical spray painting practice and training system.
PROGRESSIVE TECHNOLOGIES
For years PROGRESSIVE has been recognized as a leader in the desi n and manufacture of pneumatic abrasive b Bast cleaning and shot peening equipment. Expertise and experience makes our line of equipment benchmarks for indust . We have corn etitive solutions to all your B7 ast Cleaning an 2 Shot Peening needs. 4201 Patterson Ave. SE l Grand Rapids, MI l USA 49512-4033 PH 800.968.0871 l 616.957.0871 l FAX 616.957.3484 e-mail [email protected] l http://www.ptihome.com Circle July
2000
036 on reader
information
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056 on reader
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COMPOSITION
U.S. Patent 5,948,851. Sept. 7, 1999 D.R. Anton, assignors to E.I. du Pont de Nemours and Co., Wilmington, Del.
A coating composition containing 45 to 80% by weight of a binder and 20 to 55% of a carrier liquid; wherein the binder comprises 30 to 89% of an acrylic polymer consisting of polymerized hydroxyl containing monomers of hydroxy alkyl (methjacrylate; l-20% by weight of an acrylic polymeric additive consisting of 5 to 90% of polymerized monomers selected from the group consisting of alkyl (methjacrylates and 10 to 50% of an organic cross-linking agent; and where a cured layer of the coating of the composition has a combination of advancing water contact angle of at least 100” and a hexadecane advancing contact angle of at least 40”.
POWDER
PAINT
COMPOSITION
U.S. Patent 5,948,866. Sept. 7, 1999 H. Takeda et al., assignors to Dainippon Ink and Chemicals Znc., Tokyo
A powder paint composition comprising a resin composition obtained by adding a multifunctional vinyl copolymer, which has a glass transition temperature of 0°C or less and an epoxy group, to a composition that contains a polycarboxylic acid and a multifunctional vinyl copolymer, which has a glass transition temperature of 40°C or greater and an epoxy group. PEENING
HEXAVALENT REDUCTION
CHROMIUM
U.S. Patent 5,951,457. Sept. 14, 1999 B.R. James, Bowie, Md., assignor to Chemical Land Holdings Inc., Dallas
A method to reduce hexavalent chromium in soils, sediments, industrial waste, and other contaminated materials using ascorbic acid.
PROCESS
U.S. Patent 5,950,470. Sept. 14, 1999 K.M. Prewo et al., assignors to United Technologies Corp., Hartford, Conn.
A method and apparatus for peening the internal surface of a nonferromagnetic hollow part. PRACTICE
SPRAY
GUN
U.S. Patent 5,951,296. Sept. 14, 1999 R. J. Klein, assignor to University of Northern Iowa Foundation (UNIF), Cedar Falls, Iowa
An optical spray painting practice and training system.
PROGRESSIVE TECHNOLOGIES
For years PROGRESSIVE has been recognized as a leader in the desi n and manufacture of pneumatic abrasive b Bast cleaning and shot peening equipment. Expertise and experience makes our line of equipment benchmarks for indust . We have corn etitive solutions to all your B7 ast Cleaning an 2 Shot Peening needs. 4201 Patterson Ave. SE l Grand Rapids, MI l USA 49512-4033 PH 800.968.0871 l 616.957.0871 l FAX 616.957.3484 e-mail [email protected] l http://www.ptihome.com Circle July
2000
036 on reader
information
card
Circle
056 on reader
information
card 79