Stauffer Chemical Company

Akzo N.v.

Akzo America Inc.

Akzo Nobel N.v.

Gerald Fesman

Barry A Jacobs

Ralph Franklin

William J Parr

Alan M Aaronson

Barbara Williams

A flame retardant mixture, suitable for use in polyurethane foams, comprises a polybrominated diphenyl oxide (e.g., pentabromodiphenyl oxide) and an organic diphosphate (e.g., an aromatic diphosphate). A small amount of triaryl phosphate can also be present for viscosity reduction purposes.

Flame retardant mixture of polybrominated diphenyl oxide and organic

A method of using blowing agent compositions to produce foamed plastics such as polyurethanes, polyesters and the like, wherein a major auxiliary source of blowing agent for the foam is the decomposition of dialkyl dicarbonates. The dialkyl dicarbonates can be decomposed over temperatures ranging from about 10.degree. C. to about 45.degree. C. when used in combination with particular tertiary amine decomposition catalysts.

Dialkyl dicarbonates as blowing agents for polymers

The present invention pertains to a composition of matter and to a method of using the composition to produce foamed plastics, wherein a major, auxiliary source of blowing agent for the foam is the decomposition of dialkyl dicarbonates. The dialkyl dicarbonates can be decomposed over temperatures ranging from about 10.degree. C. to about 45.degree. C. when used in combination with particular tertiary amine decomposition catalysts.

Polyether flexible urethane foams are rendered flame laminatable by use of a combination of an organophosphorus additive to confer flame laminatable properties on the foam and a polyalkylene glycol additive to improve the flame laminatable properties. A halogenated flame retardant is preferably also contained in the foam.

Flame laminatable polyether urethane foam

Polyurethane foams containing halogenated phosphorus-based flame retardants are protected from scorching by the incorporation therein of an anti-scorch package which comprises a diaryl arylenediamine, the reaction product of a diarylamine and a lower alkyl ketone, and a hindered phenol.

Reduction of discoloration in flame retarded polyurethane foams

Polyether urethane foams that are heat laminatable are prepared by incorporating within the foam an effective amount of an organophosphorus additive. This organophosphorus additive can be an organophosphite, an organophosphonate, an organophosphate, and a mixture thereof. This foam can also include an halogenated flame retardant.

Process for producing laminated polyether urethane foam

Laminated heat-sealed polyether urethane foam

Heat laminatable polyether urethane foam

The softness of filled polyurethane foams is enhanced by the incorporation in the formulation used to make the foam of a polyethylene glycol softening agent. Generally, from about 2 to about 12 parts by weight of polyethylene glycol can be used in the foam formulation. Use of this glycol softening agent obviates the need for relatively high amounts of halogenated hydrocarbon auxiliary blowing agents with the water blowing agent normally used and this obviates the foam processing instability which can result from use of such high levels of auxiliary blowing agent. If desired, the polyethylene glycol softening agent can be combined with a liquid compatible plasticizer (e.g. a phosphate or phthalate plasticizer) to ensure that it is in a liquid form for processing ease of the foamable formulation used to make the foam.

Filled or extended polyurethane foam containing polyethylene glycol

A polyester polyurethane foam formulation useful in medical pads to support bedridden patients is described. The foam is formed by reaction of a polyester polyol, isocyanate and blowing agent combination of water and halogenated hydrocarbon auxiliary blowing agent. A halogenated flame retardant, e.g., an organophosphorus compound, is present. A liquid char forming and dripping ember retardant additive is also present.

Polyester polyurethane foam based medical support pad

Flexible, resilient, polyurethane foam having improved flame retardancy and intumescent properties is prepared from the reaction of polyether polyol with organic isocyanate and an additive combination comprising: (i) a polyester polyol, (ii) an halogenated flame retardant, and (iii) water or alcohol soluble urea-formaldehyde resin.

Intumescent flexible polyurethane foam

Polyurethane foams prepared with halogenated phosphoric acid flame retardant have low scorch and surface discoloration when prepared in the presence of a composition containing phenothiazine, 4,4'-thio-bis-(6-tertiary butyl meta cresol), and organophosphite.

Polyurethane foams having low scorch discoloration

Polyurethane foams prepared from the reaction of polyester polyol with organic isocyanate have improved flame retardance and dripping ember retardance by incorporation of an additive comprising (1) halogenated flame retardant, and (2) organic solvent soluble glycoluril-formaldehyde material.

Flexible polyurethane foams containing glycoluril reaction products for

Polyurethane foams prepared from the reaction of polyester polyol with organic isocyanate have improved flame retardance and dripping ember retardance by incorporation of an additive comprising (1) halogenated flame retardant, and (2) water or alcohol soluble urea-formaldehyde resin.

Growing community of inventors

Teaneck, NJ, United States of America

Gerald Fesman