Method for producing a skin-formed polyurethane foam molded prod

Details Method for producing a skin-formed polyurethane foam molded prod Method for producing a skin-formed polyurethane foam molded prod

1993-01-26

1995-08-01

Kuhns, Allan R.

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

Composite article making

264 50, 264 53, 264 54, 2643282, B29C 4406

Patent

active

054378222

ABSTRACT:
A method for producing a skin-formed polyurethane foam molded product, which comprises reacting a high molecular weight active hydrogen compound containing at least 80% by weight of a polyoxyalkylene polyol having from 2 to 8 hydroxyl groups and a hydroxyl value of from 3 to 60 (mgKOH/g) and consisting essentially of from 20 to 100% by weight of the following component (a) and from 0 to 80% by weight of the following component (b), a chain extender and a polyisocyanate compound in a closed molding tool in the presence of a catalyst and a blowing agent comprising as the main component, at least one member selected from the group consisting of water, a heat decomposable blowing agent capable of generating a gas upon heat decomposition and an inert gas:

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