Polycondensates

Details Polycondensates Polycondensates

1977-11-23

1978-11-07

Phynes, Lucille M.

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...

260860, 260861, 428375, 528 73, C08G 6352

Patent

active

041245687

ABSTRACT:
A process for the production of polycondensates linked by nitrogen containing five membered rings, wherein a unsaturated cyclic anhydride compound is polycondensed with alcohols and organic polyisocyanates.

REFERENCES:
patent: 3560446 (1971-02-01), Zecher et al.
patent: 3836606 (1974-09-01), Baum
patent: 3838106 (1974-09-01), Shuki et al.
patent: 3876582 (1975-04-01), Kaiser et al.
patent: 3896098 (1975-07-01), Lasher
patent: 4069209 (1978-01-01), Lange

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