Azeotropic compositions of 1,1,1,4,4,4-hexafuorobutane and n-pen

Details Azeotropic compositions of 1,1,1,4,4,4-hexafuorobutane and n-pen Azeotropic compositions of 1,1,1,4,4,4-hexafuorobutane and n-pen

1995-09-27

1996-11-12

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

252364, 521128, 521129, 521174, H01L 2976

Patent

active

055740723

ABSTRACT:
An azeotropic composition made up of from about 73 to about 87% by weight of 1,1,1,4,4,4-hexafluorobutane and from about 13 to about 27% by weight of n-pentane is used as a blowing agent in a process for the production of polyurethane foams.

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patent: 5283003 (1994-02-01), Chen
Lamberts, 1,1,1,4,4,4 Hexafluorobutane, a New Non-Ozone-Depleting Blowing Agent for Rigid PUR Foams, Polyurethanes World Congress 1991-Sep. 24-26, pp. 734-739.

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