Judy Ann Godbey, Age 683304 Justinian, Jeffersonville, IN 47130

5565497, Oct 15, 1996

Dec 7, 1995

8/569827

Judy A. Godbey - Tampa FL
Jyothi S. Pisipati - Wexford PA

The Celotex Corporation - Tampa FL

C08G 1832
C08G 1834

521131

A process for the manufacture of a closed cell, rigid, polymer foam from polymer foam-forming ingredients containing a filler which comprises: (a) dispersing the filler in at least a portion of the foam-forming ingredients to form a filled dispersion, a fluorochemical surfactant being incorporated in the foam-forming ingredients either before, during or after the dispersing operation to form a dispersion containing a filler and a fluorochemical surfactant, (b) mixing the dispersion formed in step (a) with any remaining foam-forming ingredient or ingredients, and (c) foaming and curing the resultant foam-forming composition. The fluorochemical surfactant improves the stability, flowability and mixing of the dispersion during the foam production.

5837743, Nov 17, 1998

Apr 10, 1998

/058140

Michael Edward Londrigan - Clearwater FL
Judy Ann Godbey - Tampa FL
Gregory W. Lynn - Clearwater FL

Celotex Corporation - Tampa FL

G08G 1842

521172

Closed cell, rigid polymer foams are prepared by (a) continuously conveying a carrier along a production line, (b) supplying on the carrier a foam-forming mixture comprising a polyisocyanate, a catalyst, a hydrogen-containing blowing agent or a mixture of the hydrogen-containing blowing agent and at least one co-blowing agent, and an isocyanate-reactive component comprising (i) a high acid polyester polyol having an acid number greater than 1, or (ii) a mixture of the high acid polyester polyol and at least one other isocyanate-reactive compound, (c) passing the carrier and mixture between two constricting members forming therebetween a metering gap, and (d) allowing the mixture after passing through the gap to freely expand to form a plastic foam, wherein the acid number and amount of the high acid polyester polyol in the mixture are sufficiently high to result in a superior resistance to cold temperature shrinkage.

5789458, Aug 4, 1998

Jun 12, 1997

8/873435

Michael Edward Londrigan - Clearwater FL
Judy Ann Godbey - Tampa FL
Gregory W. Lynn - Clearwater FL

Celotex Corporation - Tampa FL

C08G 1842

521131

Closed cell, rigid polymer foams are prepared by (a) continuously conveying a carrier along a production line, (b) supplying on the carrier a foam-forming mixture comprising a polyisocyanate, a catalyst, a hydrogen-containing blowing agent or a mixture of the hydrogen-containing blowing agent and at least one co-blowing agent, and an isocyanate-reactive component comprising (i) a high acid polyester polyol having an acid number greater than 1, or (ii) a mixture of the high acid polyester polyol and at least one other isocyanate-reactive compound, (c) passing the carrier and mixture between two constricting members forming therebetween a metering gap, and (d) allowing the mixture after passing through the gap to freely expand to form a plastic foam, wherein the acid number and amount of the high acid polyester polyol in the mixture are sufficiently high to result in a superior resistance to cold temperature shrinkage.