Tenneco Chemicals, Inc.

G.f.c. Foam Corporation

Peter D Pauly

Herman Stone

Bernard Rudner

Thomas M Noone

Pcolinsky, Jr

Flexible, resilient, polyurethane foam having improved flame retardancy and intumescent properties is prepared from a reaction mixture comprising a polyether polyol, an organic polyisocyanate, a blowing agent, a surfactant, a catalyst, a flame retardant, and hydrated alumina. Alternatively, the mixture also comprises a low-viscosity linear polyester. The hydrated alumina is predispersed in a mixture comprising flame retardant and low-viscosity linear polyester, and alternatively a char former and a fugitive viscosity modifier.

Intumescent flexible polyurethane foam

Fragrance-emitting articles comprising a polyurethane foam containing a particulate filler and a fragrance material, and a method of making such articles, are disclosed. The method includes the essential steps of pre-mixing particulate filler and fragrance and dispersing the pre-mix in a liquid polyol, before adding the other reaction mixture components, and provides a polyurethane foam having a controlled rate of release of the fragrance.

Process for a polyurethane foam containing fragrance

Filled detergent hydrophilic flexible polyurethane foams having a reduced and controlled rate of release of detergent from the foam are provided.

Filled detergent foam made by a one shot process

Flexible polyurethane foam having reduced tendency to form burning embers when it is ignited and burned is provided by incorporating into the reaction mixture before foaming a derivative of melamine wherein one or more hydrogens have been replaced by hydroxymethyl and/or lower alkoxymethyl groups. In one embodiment, flexible polyurethane foams of increased flame retardance are also provided, by also incorporating a halogenated phosphorus ester into the reaction mixture before foaming.

Production of polyurethane foam of reduced tendency to form embers when

There is disclosed a one-shot process for the manufacture of a filled detergent hydrophilic flexible polyurethane foam from a clay filler, an alkylaryl sulfonate detergent, a normally liquid polyether polyol, tolylene diisocyanate and water as a blowing agent.

One-shot process for making a filled detergent polyurethane foam

Flexible, substantially nonlustrous, open-celled polyurethane foam made by an in situ process is rendered permanently flame-retardant by the incorporation of tribromoneopentyl alcohol into the reaction mixture.

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Mountaintop, PA, United States of America

Peter D Pauly