Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Cellular products or processes of preparing a cellular...
Patent
1989-08-25
1991-01-01
Welsh, Maurice J.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Cellular products or processes of preparing a cellular...
521121, 528 53, 25218217, C08G 1814
Patent
active
049818775
ABSTRACT:
A compatabilized active hydrogen compound-alkylene glycol composition comprises components (A) a relatively high equivalent weight material having an average of at least about 1.8 active hydrogen containing groups per molecule and a weight from about 500 to about 5000 per active hydrogen containing group; (B) an alkylene glycol which is incompatible with component (A) at the relative proportions thereof present in the composition; said composition having dissolved therein; (C) a compatibilizing amount of at least one thiourea compound. Preferably the composition also contains at least one transition metal salt of a carboxylic acid wherein said metal is selected from Groups I-B, II-B, V-A, IV-B, V-B, VI-B, VII-B or VIII of the Periodic Table of the Elements. The composition preferably also contains a sufficient quantity of at least one amine group-containing material that the salt is soluble in said composition. Such compositions are useful in producing poloyurethanes, particularly polyurethanes exhibiting relatively short demold times and good mold release properties.
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Cavender Carol J.
The Dow Chemical Company
Welsh Maurice J.
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