Expandable polymeric styrene particles

Details Expandable polymeric styrene particles Expandable polymeric styrene particles

C - Chemistry, Metallurgy

08

J

403/74, 403/80

C08J 9/18 (2006.01) C08K 5/02 (2006.01) C08K 5/20 (2006.01) C08L 25/06 (2006.01)

Patent

CA 1186850

Abstract of the invention An improved expandable polymeric styrene particle is provided containing a blowing agent and either a minor amount of ethylene-bis-stearamide and dibromoethyldibromo- cyclohexane or a minor amount of bis (allyl ether) of tetrabromobisphenol A and a minor amount of pentabromo- monochlorocyclohexane. An improved particle results in a significantly reduced final mold cooling cycle in producing the finished molded product when ethylene-bis-stearamide and dibromoethyldibromocyclohexane are incorporated therein. An improved particle exhibiting reduced flammability characteristics results when bis (allyl ether) of tetrabromobisphenol A and pentabromomonochlorocyclo- hexane are incorporated therein. These additives can be incorporated during impregnation with the blowing agent or by blending with the expandable particles after impregnation.

429202

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