Patents Assigned to Patrick James. Crehan - Justia Patents Search

Patents Assigned to Patrick James. Crehan

Composition and a method for controlling reaction pressures during the foaming process resulting in an easily flame retarded foam-in place insulation

Patent number: 4291129

Abstract: A low reactive pressure flame-retardant polyurethane foam made by reacting together a polymeric isocyanate, a polyol, an aqueous solution of a carbohydrate, calcium acid phosphate, sodium aluminum sulfate, sodium bicarbonate, and a flame retardant. A blowing agent may be present.

Type: Grant

Filed: June 25, 1980

Date of Patent: September 22, 1981

Assignees: Patrick James. Crehan, Richard J. Fricke

Inventor: Richard B. Kennedy