Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Cellular products or processes of preparing a cellular...
Patent
1978-03-24
1979-01-23
Cockeram, H.S.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Cellular products or processes of preparing a cellular...
521120, 521127, 521129, 521174, C08G 1814, C08G 1832, C08G 1834, C08G 1830
Patent
active
041362411
ABSTRACT:
In a process for producing polyurethane foam, which process comprises reacting in one step a polyether polyol and a crosslinking agent with a polyisocyanate in the presence of a catalyst and a blowing agent, the improvement of employing as at least a major proportion of the crosslinking agent a soluble amine salt obtained by reacting a cycloaliphatic polyamine having at least two primary amine groups with approximately the stoichiometric amount of a carboxylic acid.
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patent: 4054556 (1977-10-01), VanGulick
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Cockeram H.S.
Russell H. David
The Dow Chemical Company
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