Solution of a polyurethane in a polyol and a process for using s

Details Solution of a polyurethane in a polyol and a process for using s Solution of a polyurethane in a polyol and a process for using s

1981-02-23

1983-02-01

Cockeram, H. S.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Cellular products or processes of preparing a cellular...

252182, 521172, 521914, 1562744, 1563082, C08G 1814, C08G 1832, C08G 1842

Patent

active

043716300

ABSTRACT:
A solution of a polyurethane in a polyol is made from (a) the reaction product of a polyisocyanate and a diprimary diol, and (b) a polyether in which the reaction product constitutes from 3 to 60 wt. % of the solution. Suitable diprimary diols have a molecular weight of from 90 to 800 and a structure at both hydroxyl groups corresponding to the general formula: ##STR1## in which R.sub.1 represents chlorine, an alkyl, cycloalkyl, aralkyl or aryl radical having from 1 to 10 carbon atoms, which carbon atoms may be substituted or interrupted by chlorine, ester groups, ether groups, amide groups, urethane groups or nitrile groups, and

REFERENCES:
patent: 3360495 (1967-12-01), Muller et al.
patent: 4093569 (1978-06-01), Reischl et al.
patent: 4147680 (1979-04-01), Reischl et al.

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