Organic condensation polymers and method of making same

Details Organic condensation polymers and method of making same Organic condensation polymers and method of making same

1988-09-26

1989-07-04

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 51, 528 57, 528 71, 528 75, 528354, 528355, 528358, 528367, 528368, 528370, 528371, 528372, 528392, C08G 1804

Patent

active

048451819

ABSTRACT:
An organic condensation polymer made by reacting in solution of first compound having at least two anionic carbon sites bonded to each other either directly or through a chain of 1 to 30 carbon atoms, including a bisacetylide or a first compound having an anionic carbon site and a latent anionic carbon site bonded to each other either directly or through a chain of 1 to 30 carbon atoms, such as organometallic cyclopentadienides, with a second compound containing at least two electrophillic carbon sites bonded to each other either directly or through a chain of 1 to 30 carbon atoms, including diesters, dihalides, diamides or dianhydrides of polycarboxylic acids, and diisocyanates.

REFERENCES:
patent: 2964482 (1960-12-01), Leary et al.
patent: 4483961 (1984-11-01), Koch et al.
Fujisawa et al., Tetrahedron Letters No. 37, pp. 3331-3334, (1976).

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