US 6,270,694 B1 · Flame retardant compositions utilizing amino condensation compounds

Abstract

Flame retardant compositions of this invention are produced by incorporating a urea-organic compound condensate into a flammable organic material. The urea-organic compounds condensate are produced by heating urea organic compounds that will condensate with or react with isocyanic acid and/or cyanic acid or heating urea first then reacting the condensation compounds with other organic compounds. The urea-organic compound condensate may be mixed with or reacted with carbonization auxiliaries, aldehydes and fillers to produce a urea-organic compound condensate composition which is incorporated in more flammable organic compositions such as polyurethanes, polyester resins, epoxy resins, vinyl resins and other resins. The urea-organic compound condensate salts of phosphorus, boron or sulfur containing compounds and the urea-organic compound condensate-aldehyde resins may also be used as the flame retardant compound in this invention. For example, polyurethane foams can be rendered less flammable with the urea-organic compound condensate or compositions and utilized as insulating materials.

Claims21

Dependent claims

A flame retardant composition provided by incorporating a urea-organic condensate-aldehyde resin, and/or a urea-organic compound condensate-aldehyde resin salt of phosphorus and/or boron and/or urea-organic condensate-aldehyde resin composition in a more flammable organic material, under reaction conditions and in an amount sufficient to reduce the combustibility of the flammable organic material, said flame retardant composition produced by the process comprising of mixing, heating and reacting the following components:

(A). Urea
(B) organic compound that will condensate or react with urea
(C) water
(D) carbonization auxiliaries
(E) aldehyde
(F) filler
components A and B are first heated and reacted to produce a urea-organic compound condensate, then components C and D are added and mixed, then component E is added and reacted, and then component F is added and mixed.

4 more elements

A method for reducing combustibility of a more flammable organic material comprising incorporating a urea-organic condensate-aldehyde resin and/or a urea-organic compound condensate-aldehyde resin salt of phosphorous and/or boron and/or urea-organic condensate-aldehyde resin composition with the more flammable organic material, under reaction conditions of the organic material and in an amount sufficient to reduce the combustibility of the flammable organic material, said urea-organic condensate-aldehyde resin and/or a urea-organic compound condensate-aldehyde resin salt of phosphorous and/or boron and/or urea-organic condensate-aldehyde resin composition produced by the method comprising of mixing, heating and reacting the following components wherein all percentages are based on weight of urea:

(A) urea in an amount of 50 to 100 parts by weight;
(B) organic compound that will condensate and/or react with isocyanic acid and/or cyanic acid produced by heating a urea compound in an amount of 25 to 300 parts by weight;
then add
(C) water in an amount of 1 to 200 parts by weight;
then add and/or react
(D) carbonization auxiliaries in an amount of 1 to 300 parts by weight;
then add and react
(H) aldehyde in an amount of 20 to 100 parts by weight;
then add and mix in
(I) filler in an amount of 1 to 300 parts by weight.

7 more elements

Dependencies are inferred from the claim text.

Flame retardant compositions utilizing amino condensation compounds

Life of this patent

Flame retardant compositions utilizing amino condensation compounds

Life of this patent

Abstract

Claims21