Process for the production of foams with the aid of branched dod

Details Process for the production of foams with the aid of branched dod Process for the production of foams with the aid of branched dod

1992-03-26

1992-10-13

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521 98, C08J 914

Patent

active

051551411

ABSTRACT:
The invention relates to a process for the production of foams based on polyisocyanates by reaction of polyisocyanates, compounds having at least two hydrogen atoms which are reactive toward isocyanate groups, blowing agents and if appropriate other additives. A blowing agent which consists to the extent of at least 10 mol % of one or more branched dodecafluorohexanes is used here.

REFERENCES:
patent: 3903110 (1975-09-01), Freyermuth
patent: 4947881 (1990-08-01), Magid et al.
Kunststoff-Handbuch, Band VIII:108,109; 453-455 and 507-510.
Uhlig, K., et al, "Polyurethane", In: Ullmanns Encycl., vol. 19, 1980, pp. 301-341.
Kirk-Othmer, Encycl. of Chem. Technology, 3rd Ed., vol. 11, 1980, pp. 87-89 and vol. 23, 1983, pp. 576-607.
Kunststoff-Handbuch, Band VII:246-331.

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