Polymers containing amide moieties and a process for their prepa

Details Polymers containing amide moieties and a process for their prepa Polymers containing amide moieties and a process for their prepa

1989-09-29

1991-02-26

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 44, 528408, 528361, 528172, C08G 1860

Patent

active

049962817

ABSTRACT:
A polymer comprising a backbone portion containing at least one amide moiety and a plurality of imidazole, benzimidazole, benzoxazole, or benzothiazole moieties is prepared by contacting a polyisocyanate with a compound containing at least two end moieties selected from the following: imidazole, benzimidazole, benzoxazole, or benzothiazole, under reaction conditions sufficient to form the corresponding polymer containing amide moieties are disclosed. The process of the invention is suitable for the preparation of thermoset polymers which are advantageously free of surface defects, since a solvent is not required and no volatiles are evolved during the curing process. Urethane and/or urea polymers comprising a backbone portion containing at least one urea or urethane moiety, at least one amide moiety, and a plurality of imidazole, benzimidazole, benzoxazole, or benzothiazole moieties are also disclosed.

REFERENCES:
patent: 3625992 (1971-12-01), Ando
patent: 4369302 (1983-01-01), Ikegucyi et al.
patent: 4391957 (1983-07-01), Becker
patent: 4472567 (1984-09-01), Zecher et al.
patent: 4785070 (1988-11-01), Rasmussen et al.
Papadopoulos, Reactions of Imidazoles with Isocyanates at Elevated Temperature J. Org. Chem., vol. 42, No. 24, 1977, 3925-3929.
Kikugawa, A Facile N-Alkylation of Imidazoles and Benzimidazoles, Synthesis, 124-125.
Chemical Abstract 105089t, Synthesis of 5,5'(or 6,6')-Bibenzimidazole from Non-Carcinogenic Compounds.

Affiliated with

Also associated with

Rating

Polymers containing amide moieties and a process for their prepa does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Polymers containing amide moieties and a process for their prepa, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polymers containing amide moieties and a process for their prepa will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-294585