Stabilization of polyether or polyester molding compositions...

Details Stabilization of polyether or polyester molding compositions... Stabilization of polyether or polyester molding compositions...

C - Chemistry, Metallurgy

09

K

400/102, 31/71

C09K 15/00 (2006.01) C08G 18/28 (2006.01) C08G 18/32 (2006.01) C08J 3/22 (2006.01) C08J 9/00 (2006.01) C08K 5/01 (2006.01) C12H 1/14 (2006.01) G03C 1/34 (2006.01)

Patent

CA 1189305

Abstract of the disclosure: Mixtures which are used for the production ofof polyurethane foam and which contain amines having primary or secondary aliphatic hydroxyl groups, and also custom- ary quantities of trichlorotrifluoroethane and/or tri- chlorofluoromethane as a blowing agent, can be stabilized against the premature reaction of the components by add- ing 0.05 to 5% by weight of 2,4-diphenyl-4-methylpentene in which the ratio of the 2,4-diphenyl-4-methyl-1-pentene isomer to the 2,4-diphenyl-4-methyl-2-pentene isomer is 1:1 to 9:1, the percentages relating to the chlorofluoro- alkane. In particular, these mixtures can be stabilized by adding 0.1 to 5% by weight of a mixture consisting of 45 to 89% by weight of 2,4-diphenyl-4-methyl-1-pentene, 10 to 45% by weight of 2,4-diphenyl-4-methyl-2-pentene and 1 to 20% by weight of 1,1,3-trimethyl-3-phenylindane.

412709

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