Stabilization of polyether or polyester molding compositions aga

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

1982-09-21

1984-07-31

Waltz, Thomas A.

Organic compounds -- part of the class 532-570 series

Organic compounds

Amino nitrogen containing

252182, 252403, C07C 8526

Patent

active

044631898

ABSTRACT:
Mixtures which are used for the production of polyurethane foam and which contain amines having primary or secondary aliphatic hydroxyl groups, and also customary quantities of trichlorotrifluoroethane and/or trichlorofluoromethane as a blowing agent, can be stabilized against the premature reaction of the components by adding 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 chlorofluoroalkane. 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.

REFERENCES:
Suehiro et al., CA 73:36079d, (1970).

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