Plastic and nonmetallic article shaping or treating: processes – Pore forming in situ – By gas forming or expanding
Patent
1984-08-30
1987-02-24
Anderson, Philip
Plastic and nonmetallic article shaping or treating: processes
Pore forming in situ
By gas forming or expanding
264 453, 264 455, 264 50, 264 53, 264300, 264DIG5, 264DIG83, 4283188, 521 51, 521163, B29C 6722, B29C 4500, C08J 934, C08G 1818
Patent
active
046456309
ABSTRACT:
The present invention relates to a process for the production of polyurethane-urea or polyurea-based microcellular of foam moldings by reacting a polyisocyanate component containing aromatically bound isocyanate groups with an isocyanate-reactive component containing at least one compound which has at least three aliphatic ether groups and aliphatically bound isocyanate-reactive groups and wherein a portion of the aliphatically bound-reactive groups are amino groups which have been converted to ammonium carbamate, carbonate or bicarbonate groups.
The present invention also relates to the compounds containing aliphatic ether groups and ammonium carbamate, carbonate or bicarbonate groups, optionally in admixture with compounds containing unmodified amino groups or other known isocyanate-reactive compounds.
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patent: 4500656 (1985-02-01), Rasshofer et al.
Meiners Hans-Joachim
Rasshofer Werner
Seel Klaus
Wussow Hans-Georg
Anderson Philip
Bayer Aktiengesellschaft
Gil Joseph C.
Harsh Gene
Roy Thomas W.
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