Polyurethaneurea and process for preparing the same

Details Polyurethaneurea and process for preparing the same Polyurethaneurea and process for preparing the same

1983-11-07

1985-03-12

Cockeram, Herbert S.

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...

252182, 521164, 528 59, 528 63, C08G 1832, C08G 1822, C08G 1814

Patent

active

045046484

ABSTRACT:
A polyurethaneurea which comprises a polymer obtained by a polyaddition reaction of (a) a polyetherpolyol derivative and (b) an at least 2-valent polyisocyanate, the polyetherpolyol derivative having at least, on average, one terminal amino group in which at least, on average, one hydroxyl group is substituted by a residue of para-aminobenzoic acid ester, and having the general formula ##STR1## wherein n is an integer of 2 to 8, x is an average value and a positive number of 0.05 n to (n-1), 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.

REFERENCES:
patent: 3817940 (1974-06-01), Blahak et al.
patent: 3932360 (1976-01-01), Cerankowski et al.
patent: 4246392 (1981-01-01), Koike et al.
patent: 4328322 (1982-05-01), Baron

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