George W Grogan

US Patent:

6936649, Aug 30, 2005

Filed:

Mar 11, 2003

Appl. No.:

10/385992

Inventors:

George W. Grogan - Dallas TX, US
Robert H. Boyd - Dallas TX, US

Assignee:

Groco Specialty Coatings Co. - Dallas TX

International Classification:

C08K005/54

US Classification:

524268, 524297, 524317, 524506

Abstract:

The present invention provides a strippable film coating mixture that includes a resin component having an acrylic polymer and a polyvinyl polymer, wherein the acrylic polymer comprises from about 20% to about 40% by weight of the mixture and the polyvinyl polymer comprises from about 10% to about 30% by weight of the mixture. The strippable film coating mixture also includes a moisture repellent/release agent comprising from about 0. 3% to about 0. 6% by weight of the mixture, a surface release agent comprising from about 0. 3% to about 2% by weight of the mixture, and a plasticizer comprising from about 1% to about 3% by weight of the mixture with a remainder of the weight of the mixture comprising an aqueous medium ranging from about 45% to about 60% by weight of the mixture.

US Patent:

51439492, Sep 1, 1992

Filed:

Dec 2, 1991

Appl. No.:

7/800694

Inventors:

George W. Grogan - Dallas TX
Robert H. Boyd - Dallas TX

Assignee:

Groco Specialty Coatings Company - Dallas TX

International Classification:

C08L 1902
C08L 2904
C08L 128

US Classification:

523334

Abstract:

A strippable coating composition is shown for use as a temporary protective coating on a variety of substrates. The composition includes a water based polymeric emulsion which is dispersed in an aqueous carrier to form a stable emulsion. Release aids are incorporated in the composition which allow the protective coating to be removed by peeling or washing off with water.

US Patent:

56042825, Feb 18, 1997

Filed:

Dec 6, 1994

Appl. No.:

8/349942

Inventors:

George W. Grogan - Dallas TX
Robert H. Boyd - Dallas TX

Assignee:

Groco Specialty Coatings Company - Dallas TX

International Classification:

C08K 520

US Classification:

524232

Abstract:

The present invention provides a strippable, rewettable film coating generally comprising polyvinyl polymer, polyalkyl acrylate, polyvinyl alcohol, release agents, surfactants, defoamers, dispersants, plactizicers and water. A machinable film coating mixture is also provided that is comprised of polyalkyl acrylate, release agents, surfactants, defoamers, dispersants, plactizicers and water. In another aspect, the present invention provides a heat-resistant film coating mixture comprised of polyalkyl acrylate, polyvinyl alcohol, release agents, surfactants, defoamers, dispersants, plactizicers and water.