Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From reactant having at least one -n=c=x group as well as...
Patent
1990-02-27
1991-10-08
Welsh, Maurice J.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From reactant having at least one -n=c=x group as well as...
528 58, 528 76, 528 77, 528 78, 528290, 528292, 528354, 528359, 528367, 564 17, 564 22, 564 26, 564 30, 564 32, 564 38, 564 47, 564 55, C08G 1800
Patent
active
050555448
ABSTRACT:
This invention relates to novel polymeric polyamines containing internal urea, biuret, thiourea, dithiobiuret, amide, and/or thioamide moieties, and to polymers prepared therefrom. This invention also relates to novel isocyanate-functional prepolymers containing urea, biuret, thiourea, dithiobiuret, amide, and/or thioamide moieties and to polymers prepared therefrom.
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Harris Robert F.
Joseph Michael D.
The Dow Chemical Company
Welsh Maurice J.
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