Coating processes – Foraminous product produced
Patent
1986-01-08
1988-08-02
Page, Thurman K.
Coating processes
Foraminous product produced
156 77, 156 78, 156 79, 264 455, 264 456, 427244, 427245, 427247, 4273855, 427389, 427392, 4273935, B05D 500, B05D 302, B32B 518
Patent
active
047613076
ABSTRACT:
The present invention is directed to a process for the production of optionally foamed polyurethanes which are combined or fabricated with another material, comprising reacting compounds with molecular weights from 400 to 10,000 containing at least 2 isocyanate reactive hydrogen atoms with polyisocyanates in the presence of catalysts containing tertiary amino groups and combining or fabricating the resulting polyurethane with another material, characterized in that the catalysts used are diffusion resistant aminoalkanols corresponding to the general formula ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 may be identical or different and represent hydrogen or a C.sub.1 -C.sub.6 alkyl group,
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patent: 3622542 (1971-11-01), Klouman et al.
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patent: 3954749 (1976-05-01), Priest et al.
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Avar Geza
Freitag Hans-Albrecht
Haas Peter
Bayer Aktiengesellschaft
Gil Joseph C.
Harsh Gene
Page Thurman K.
Whalen Lyndanne M.
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