Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Cellular products or processes of preparing a cellular...
Patent
1979-01-15
1980-08-19
Cockeram, H. S.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Cellular products or processes of preparing a cellular...
528 52, 528 53, 528 54, 528 57, 528 58, 528 67, 521117, 521125, 521126, 521127, 521128, 521129, 521130, 521131, 521132, 521160, 260 37N, 264 455, 264DIG83, 296 31R, C08G 1814, C08G 1876, C08G 1832
Patent
active
042185432
ABSTRACT:
The instant invention relates to a one-step process for the production of elastomeric moldings which have a compact surface by the technique of reaction injection molding, using highly reactive systems of specific polyisocyanates, polyhydroxyl compounds and specific active aromatic polyamines. The instant invention further relates to active hydrogen containing blends useful in preparing elastomeric moldings, said blends comprising polyhydroxyl compounds, and specific active aromatic diamines. The blends herein may also contain catalyst for the reaction between hydroxyl groups and isocyanate groups.
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Schafer Hermann
Weber Christian
Bayer Aktiengesellschaft
Cockeram H. S.
Gil Joseph C.
Harsh Gene
Olson R. Brent
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