Polyurethane binder compositions

Details Polyurethane binder compositions Polyurethane binder compositions

1983-06-29

1984-03-13

Schain, Howard E.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

164525, 164526, 164527, 524115, 524142, 528 51, C08G 1806, C08G 1808, C08G 1828

Patent

active

044368810

ABSTRACT:
An improved polyurethane binder system is provided which incorporates organic phosphorous compounds that impart longer bench life to the binders making them more useful for preparing moldable compositions such as foundry cores and molds.

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