Chemtura Corporation

Great Lakes Chemical Corporation

Crompton Gmbh

Pabu Services, Inc.

Stephen B Falloon

Matthew D Phillips

Richard S Rose

David W Bartley

Ray W Atwell

Wayne Meyer

Samuel U Mulligan

Mark V Hanson

James D Siebecker

Julia E Holland

Carl H Powell, Jr

Steven Bakeis

Donavon M McElveen

David Buszard

Mathew D Phillips

Donavon W McElveen

A flexible polyurethane foam containing a flame retardant blend of at least one diester diol a ring-brominated aromatic compound and at least one epoxy resin.

Reactive flame retardants blends for flexible polyurethane foams

A method for flame-retarding styrenic resins is disclosed wherein the method comprises incorporating in compositions an effective amount of at least one flame retardant compound comprising both aliphatic and aromatic bromine.

Flame retardant composition for use in styrenics

A composition is disclosed that comprises an otherwise flammable flexible polyurethane foam and a multi-component flame retardant additive. The flame retardant additive includes an alkyl substituted aryl phosphate and an alkyl phosphate ester wherein the alkyl groups range from Cto Cand contain one to six oxygen atoms in the alkyl chain. Optionally, the flame retardant additive includes a halogenated flame retardant containing more than 30 wt. percent of bromine, chlorine, or a mixture thereof.

Flame retardant blends for flexible polyurethane foam

The invention is a flame retardant for styrene foams. The flame retardant contains both aromatic bromine and an olefin. The olefin is an internal olefin. Desirable flame retardants are selected from: formula I: wherein Ris C-Cand optionally containing a heteroatom or olefin; Ris C-Cand optionally containing a heteroatom or olefin; and R-Ris H, C-C(optionally containing a heteroatom), or halogen; and further wherein the compound of formula I is present in a concentration of at least 50 percent of a trans isomer;formula II: wherein Ris Halogen, C-Cand optionally containing a heteroatom or olefin; Ris Halogen, C-Cand optionally containing a heteroatom or olefin; and R-Ris H, C-C(optionally containing a heteroatom), or halogen; andformula III: wherein Ris Halogen, C-Cand optionally containing a heteroatom or olefin; Ris Halogen, H, C-Cand optionally containing a heteroatom or olefin; and R-Ris H, halogen.

Flame retardants for use in styrenic foams

A method of producing decabromodiphenyl alkanes includes the steps of charging a reaction vessel with bromine and a bromination catalyst and introducing a diphenyl alkane into the vessel at a location above the level of the charge bromine and catalyst. A dip tube apparatus for introducing the diphenyl alkane includes an inner tube and an outer tube, each of which are disposed above the surface of the bromine reaction vessel. The inner tube is fitted with a plug having an opening. Diphenyl alkane flows through the inner tube, out the opening in the plug, and into the reactor. The outer tube is disposed around and along the inner tube. Reaction mass from the vessel is recirculated from the vessel, through the outer tube and back to the vessel so as to form a curtain of reaction mass around the stream of diphenyl alkane being simultaneously fed into the reaction vessel.

Method and apparatus for producing decabromodiphenyl alkanes

There is presented a new flame retardant composition comprising a brominated aromatic composition and a butyl substituted phenyl phosphate.

Flame retardants and flame retarded polymers

Flame retardant flexible polyurethane foam compositions, methods of flame retarding flexible polyurethane foam compositions, articles made therefrom and flame retardants that comprise blends of tetrahalophthalate esters and phosphorus-containing flame retardant having at least about 5 wt. % phosphorus additives. The combined weight of the tetrahalophthalate ester and the phosphorus-containing flame retardant comprises about 5 to about 20% by weight of the flexible polyurethane foam compositions or reaction mixtures. The ratio of the tetrahalophthalate ester to the phosphorus-containing flame retardant is from about 80:20 to about 20:80 percent by weight and preferably from about 60:40 to about 40:60 percent by weight.

Blends of tetrahalophthalate esters and phosphorus-containing flame retardants for polyurethane compositions

Flame retardant flexible polyurethane foam compositions, methods of flame retarding flexible polyurethane foam compositions, articles made therefrom and flame retardants that comprise blends of (alkyl substituted) triaryl phosphate ester and phosphorus-containing flame retardant having at least about 5 wt. % phosphorus additives. The combined weight of the (alkyl substituted) triaryl phosphate ester and the phosphorus-containing flame retardant comprises about 5 to about 40% by weight of the flexible polyurethane foam compositions or reaction mixtures. The ratio of the (alkyl substituted) triaryl phosphate ester to the phosphorus-containing flame retardant is from about 95:5 to about 50:50 percent by weight.

Blends of alkyl substituted triaryl phosphate esters with phosphorus-containing flame retardants for polyurethane foams

A method for preparing tetrabromobenzoate ester from a tetrabromophthalic anhydride including the steps of reacting the tetrabromophthalic anhydride with a catalyst and an alcohol at a temperature that favors partial esterification over complete esterification of the tetrabromophthalic anhydride to form a tetrabromophthalate half-ester reaction mixture; and feeding the half-ester reaction mixture to at least one reactor having and maintaining a temperature that favors decarboxylation over esterification to produce a tetrabromobenzoate ester-containing product. The temperature favoring partial esterification of the tetrabromophthalic anhydride is between about 70&#xb0; C. and 130&#xb0; C. The temperature favoring decarboxylation over esterification is between about 190&#xb0; C. and 205&#xb0; C. The tetrabromobenzoate ester-containing product comprises at least about 85% tetrabromobenzoate ester. The at least one reactor may include two or more reactors connected to one another in series.

Process for producing tetrabromobenzoate esters

A flexible, flame-retarded, polyurethane foam comprising brominated and/or phosphorous flame retardants and an acid scavenger.

Growing community of inventors

Lafayette, IN, United States of America

Stephen B Falloon