Brenda Renee Morris

US Patent:

59682469, Oct 19, 1999

Filed:

Mar 6, 1998

Appl. No.:

9/036331

Inventors:

Gregory J. Pomrink - Horsham PA
Brenda S. Morris - Warminster PA

Assignee:

Betzdearborn - Trevose PA

International Classification:

C08G 7702

US Classification:

10628716

Abstract:

An aqueous stabilized composition for the treatment of surfaces such as metals, particularly aluminum, comprises a tetraalkyl silicate or a monomeric or oligomeric hydrolysis product thereof, an inorganic passenger powder below 100 nanometer diameter such as fumed or colloidal silica and a stabilizer, all dispersed in a fluid aqueous medium. The stabilizer comprises a carboxylic acid polymer, copolymer or salt thereof, preferably an acrylic acid polymer, copolymer or salt thereof, and most preferably a polyacrylic acid.

US Patent:

54120110, May 2, 1995

Filed:

Oct 15, 1993

Appl. No.:

8/137644

Inventors:

Brenda S. Morris - Philadelphia PA
Jiangbo Ouyang - Bensalem PA
David W. Reichgott - Richboro PA

Assignee:

Betz Laboratories, Inc. - Trevose PA

International Classification:

C08L 3326
C08L 3302
C08K 334
C08K 554

US Classification:

524261

Abstract:

A non-chromium conversion coating for metal surfaces such as aluminum, steel, galvanized steel and zinc-aluminum steel consisting of an aqueous solution of an anionic polyacrylamide copolymer, an inorganic silicate and an organofunctional silane.

US Patent:

53894057, Feb 14, 1995

Filed:

Nov 16, 1993

Appl. No.:

8/152806

Inventors:

Deborah L. Purnell - Philadelphia PA
Brenda S. Morris - Philadelphia PA
David W. Reichgott - Richboro PA

Assignee:

Betz Laboratories, Inc. - Trevose PA

International Classification:

B05D 714
C08L 8300
C09D 508

US Classification:

427387

Abstract:

A non-chromate conversion coating for metal surfaces such as aluminum, steel, galvanized steel and zinc-aluminum steel consisting of an aqueous solution of a cationic polymer, an alkaline aqueous silicate and an organofunctional silane.

US Patent:

54514312, Sep 19, 1995

Filed:

Oct 31, 1994

Appl. No.:

8/332278

Inventors:

Deborah L. Purnell - Philadelphia PA
Brenda S. Morris - Philadelphia PA
David W. Reichgott - Richboro PA

Assignee:

Betz Laboratories, Inc. - Trevose PA

International Classification:

B05D 714
C08L 8300
C09D 508

US Classification:

427387

Abstract:

A non-chromate conversion coating for metal surfaces such as aluminum, steel, galvanized steel and zinc-aluminum steel consisting of an aqueous solution of a cationic polymer, an alkaline aqueous silicate and an organofunctional silane.