Union Carbide Corporation

Arco Chemical Technology, L.p.

Union Carbide Chemicals and Plastics Company, Inc.

Paul M Westfall

Frank E Critchfield

Stuart L Watson, Jr

Otis M Baker

William A Gill

Howard Mayfield

Siusun K Leung

Frank E Critchfeld

Otis M Baker, Jr

A flexible polyurethane foam formulation comprising a first polyol, a second polyol, an unhindered primary diamine or its corresponding carbamate, a diol, water, at least one catalyst, a foam stabilizer and isocyanate is disclosed. No auxiliary blowing agent is required. The resulting soft foams have densities of less than about 2 pcf and 25% IFD values of less than about 10 pounds/50 sq. inches.

Soft, low density flexible polyurethane foam

It has been discovered that particular flexible polyurethane foam formulations having a chlorinated alkane incorporated therein have the advantage of improved combustion resistance, but also unexpectedly the additional advantages of improved durability (dynamic fatigue), and better processing in terms of a delayed onset of gel. These results were surprisingly achieved with the use of a chlorinated alkane as the sole component to improve combustion resistance. Incorporation of as much as 34 parts of chlorinated alkane per hundred parts of polyol have been accomplished.

Flexible polyurethane foams using chlorinated alkanes

Hexahydro-s-triazines, and in particular hexamethylenetetramine (HMT), can be used in high water (5.0 or more parts per hundred parts of polyol) flexible polyurethane foams formulations in place of conventional gellation catalysts to produce open celled molded foams with excellent surfaces and with cores free of discoloration.

Process for producing flexible polyurethane foam using

A process for the manufacture of low density flexible polymethane foam via a catalyzed reaction of a highly reactive, high ethylene oxide, high functionality polyol, a hydrophilic polyhydric compound, water and polyisocyanates.

Process for the manufacture of low density, flexible polyurethane foams

A fast curing foamable composition useful for the production of fabric-like materials comprises a resin or latex formulation and a mixture of a highly ethoxylated alkylphenol, an alkali metal N-alkyl sulfosuccinamate and an alkali metal alkyl sulfate.

Foamable composition

A soft, pliable, fiber-reinforced surface flock foamed latex sheet comprising a fibrous sheet or scrim base material, a foamed latex and a flocking in which the foam latex comprises up to about 98 weight percent of the foamed latex sheet.

Growing community of inventors

St. Albans, WV, United States of America

Paul M Westfall