Azeotropic compositions of dimethoxymethane and cyclopentane and

Details Azeotropic compositions of dimethoxymethane and cyclopentane and Azeotropic compositions of dimethoxymethane and cyclopentane and

1996-11-01

1997-09-09

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

252 67, 252305, 252364, 521131, C08J 900, C08J 914

Patent

active

056657889

ABSTRACT:
An azeotropic composition made up of from about 58 to about 77% by weight of dimethoxymethane and from about 23 to about 42% by weight of cyclopentane is used as a blowing agent in a process for the production of polyurethane foams.

REFERENCES:
patent: 4076644 (1978-02-01), Burt et al.
patent: 5096933 (1992-03-01), Volkert
patent: 5166182 (1992-11-01), Blanpied

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