Process for producing foams

Details Process for producing foams Process for producing foams

1990-12-05

1992-08-11

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, 252 68, 252 69, 521 98, 521910, C08J 914

Patent

active

051379325

ABSTRACT:
The invention relates to a process for producing foams based on polyisocyanates by reacting polyisocyanates, compounds having at least two hydrogen atoms reactive towards isocyanate groups, blowing agents and, if appropriate, further additives. In this process, a blowing agent is used which is composed to the extent of at least 10 mol % of one or more fluorinated ethers of the formula

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patent: 5023009 (1991-06-01), Merchant
patent: 5023010 (1991-06-01), Merchant
Kunststoff Handbuch, vol. VII, pp. 108, 190: 453-455 & 507-510 (1966).
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Kirk-Othmer, Encycl. of Chem. Tech, 3rd Ed. vol. 23:576-607 (1983).
Kunststoff Handbuch, vol. VII, Polyurethane:246-331 (1983).

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