Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Cellular products or processes of preparing a cellular...
Patent
1984-09-27
1985-09-03
Cockeram, Herbert S.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Cellular products or processes of preparing a cellular...
521914, 521174, 521177, 528 75, 528103, 528418, 525507, 525407, C08G 1814, C08G 1863, C08G 1848
Patent
active
045393397
ABSTRACT:
Polyurethane foams employing vinyl polymer polyols made by polymerizing in situ via a free-radical mechanism one or more vinyl monomers in an epoxy resin-modified polyol are described. Preferably, styrene and acrylonitrile are copolymerized in a polyol made by adding epoxy resin to the alkoxylation of a polyol initiator having 3 to 4 hydroxyl groups. The vinyl polymer polyols of this invention give flexible polyurethane foams with greater load-bearing properties.
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Cuscurida Michael
Peterson Bruce W.
Yeakey Ernest L.
Cockeram Herbert S.
Morgan Richard A.
Park Jack H.
Priem Kenneth R.
Texaco Inc.
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