Intumescent foamable compositions

Details Intumescent foamable compositions Intumescent foamable compositions

1987-04-27

1988-01-12

Foelak, Morton

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

521 54, 521154, 521907, C09K 2114

Patent

active

047192496

ABSTRACT:
The intumescent material of this invention comprises a filled polyorganosiloxane composition that is elastomeric in the cured form and up to 70 parts by weight per 100 parts by weight of said composition of hollow, thermoplastic microspheres filled with a volatile liquid. The materials are particularly useful as flame and smoke barriers in passages of partitions that are traversed by thermoplastic articles such as pipes and conduits, and can optionally contain chemical blowing agents.

REFERENCES:
patent: 3317455 (1967-05-01), Blome et al.
patent: 3429838 (1969-02-01), Hersh
patent: 3553002 (1971-01-01), Haraway, Jr. et al.
patent: 3923705 (1975-12-01), Smith
patent: 3983082 (1976-09-01), Pratt et al.
patent: 4000108 (1976-12-01), Yokokawa et al.
patent: 4031059 (1977-06-01), Strauss
patent: 4072635 (1978-02-01), Jeram
patent: 4273879 (1981-06-01), Langer et al.
patent: 4433022 (1984-02-01), Schwartz et al.
patent: 4433069 (1984-02-01), Harper

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