Polyether derivative and a poly(urethane)ureamide obtained there

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...

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521163, 560 19, 560 50, C08G 1832, C08G 1860, C07C10100

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active

045379459

ABSTRACT:
A poly(urethane)ureamide which comprises a polymer obtained by a reaction of (a) a polyether derivative of the general formula [I] and (b) a polyisocyanate exhibits an excellent wear resistance and heat resistance due to the presence of the aromatic amido groups ##STR1## wherein A is an n-valent radical obtained by removal of hydroxyl groups from an n-valent polyoxyalkylenepolyol having a molecular weight of 400 to 10,000,

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patent: 4246392 (1981-01-01), Koike et al.
patent: 4328322 (1982-05-01), Baron
patent: 4476318 (1984-10-01), Harada et al.

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