Liquid-crystalline polycondensates which contain urea derived li

Details Liquid-crystalline polycondensates which contain urea derived li Liquid-crystalline polycondensates which contain urea derived li

Filed on

1986-12-04

Date issued

1988-11-22

Examiner

Kight, John

Patent Class

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

SubClass

Synthetic resins

SubSubClass

From phenol, phenol ether, or inorganic phenolate

Other Related Categories

528128, 528170, 528171, 528172, 528173, 528183, 528184, 528193, C08G 6354, C08G 6944

Type

Patent

Status

active

Patent number

047867060

Description

ABSTRACT:
Liquid-crystalline carbamyl-containing polycondensates composed of

REFERENCES:
patent: 4118372 (1978-10-01), Schaefgen
patent: 4219461 (1980-08-01), Calundann
patent: 4351917 (1982-09-01), Calundann et al.
patent: 4375530 (1983-03-01), Hay et al.
patent: 4473681 (1984-09-01), East
patent: 4564669 (1986-01-01), Dicke et al.
patent: 4722993 (1988-02-01), Hisgen et al.
patent: 4727129 (1988-02-01), Hisgen et al.
patent: 4727131 (1988-02-01), Kock et al.
patent: 4728713 (1988-03-01), Hisgen et al.
patent: 4728714 (1988-03-01), Hisgen et al.
patent: 4728715 (1988-03-01), Kock et al.

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