Process for producing flexible polyurethane foam, and products p

Details Process for producing flexible polyurethane foam, and products p Process for producing flexible polyurethane foam, and products p

1990-09-27

1992-12-29

Kight, III, John

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521163, 521164, 521170, C08G 1812, C08G 1824

Patent

active

051751950

ABSTRACT:
A method for producing a flexible polyurethane foam by the reaction of a mixture of an active hydrogen compound, a blowing agent, and an additive with an organic polyisocyanate, where water is used for generating carbon dioxide as the blowing agent; and the organic polyisocyanate is a mixture of
(a) an isocyanate-terminated prepolymer prepared by reacting, with diphenylmethane diisocyanate, one or more of alkylene-polyols constituted of ethylene oxide units and an alkylene oxide units of three or more carbon atoms in an addition-polymerization molar-ratio of from 40/60 to 0/100, having an average functionality of three or more, and having an average molecular weight of from 9000 to 30000, and
(b) a polyphenylmethane-polyisocyanate, in a mixing ratio of (a) to (b) in the range of from 20/80 to 80/20 by weight.

REFERENCES:
patent: 3968089 (1976-07-01), Cuscurida et al.
patent: 4256849 (1981-03-01), Ick et al.
patent: 4263411 (1981-04-01), Bak
patent: 4373034 (1983-02-01), Speranza et al.
patent: 4701476 (1987-10-01), Burchell, Jr. et al.
patent: 4820743 (1989-04-01), Ishikawa et al.
patent: 4931487 (1990-06-01), Priester, Jr. et al.

Affiliated with

Also associated with

Rating

Process for producing flexible polyurethane foam, and products p does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for producing flexible polyurethane foam, and products p, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for producing flexible polyurethane foam, and products p will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1887582