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Home › Process for the production of foam moldings having an impervious outer skin using semi-prepolymer prepared from isocyanates such as isophorone diisocyanate

Process for the production of foam moldings having an impervious outer skin using semi-prepolymer prepared from isocyanates such as isophorone diisocyanate

US Patent 4189542 · Granted Feb 19, 1980

Estimated economic value: $1,250,000 ⓘ

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