Polyalkyleneoxy polyahis containing hydrogen bonding moieties in

Details Polyalkyleneoxy polyahis containing hydrogen bonding moieties in Polyalkyleneoxy polyahis containing hydrogen bonding moieties in

1990-03-09

1992-05-19

Kight, III, John

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 44, 528 58, 528196, 564 59, 564 61, C08G 1800, C08G 7100

Patent

active

051150700

ABSTRACT:
A polyahl comprising a backbone having at least one acyclic moiety selected from the group consisting of urea, biuret, thiourea, dithiobiuret, amide, and thioamide; and at least two polyalkyleneoxy moieties; and at least one terminal hydroxyalkyl carbamate group is disclosed. These polyahls may be prepared by contacting a modified polyamide compound containing in its backbone at least one acyclic moiety selected from the group consisting of urea, biuret, thiourea, dithiobiuret, amide, and thioamide wherein the amino groups are sufficiently spaced apart from each other that they do not undergo reaction with a single alkylene carbonate moiety to form a cyclic urea moiety, with a cyclic alkylene carbonate, in amounts thereof and under conditions effective to form the polyahl. Prepolymers and polymers prepared from such polyahls are also disclosed.

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