Non-settling foams

Details Non-settling foams Non-settling foams

1987-04-30

1988-04-19

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521 54, 521103, 521122, 521154, 523218, 523219, C08J 902

Patent

active

047389885

ABSTRACT:
Polydiorganosiloxane compositions useful for producing flame resistant foam of the type containing finely divided nonmetallic fibrous heat resistant material and finely divided nonmetallic cellular heat resistant material tend to separate upon long time storage. The compositions remain homogeneous upon storage when at least 0.1 weight percent of fume silica is included in the composition during the mixing of the ingredients before storage.

REFERENCES:
patent: 3923705 (1975-12-01), Smith
patent: 4082702 (1978-04-01), Harper
patent: 4433069 (1984-02-01), Harper

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