Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate
Patent
1988-09-06
1990-01-02
Anderson, Harold D.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From phenol, phenol ether, or inorganic phenolate
528176, 528190, 528193, C08G 6302
Patent
active
048914185
ABSTRACT:
A cholesteric liquid crystal polyester comprising the following structural units (A), (B) and (C): ##STR1## wherein Ar.sup.1 and Ar.sup.2 represent each independently a divalent aromatic hydrocarbon group having 6 to 20 carbon atoms, of which one or more hydrogen atoms may be substituted by one or more halogen atoms, alkyl or alkoxy groups having 1 to 4 carbon atoms, provided that at least 60 mol % of Ar.sup.1 in the polymer is constituted by at least one group selected from 1,4-phenyl group, 2,6-naphthyl group and 4,4'-biphenyl group.
REFERENCES:
patent: 4652626 (1987-03-01), Orii
Hara Hajime
Iida Shigeki
Satoh Tetsuo
Toya Tomohiro
Anderson Harold D.
Mosley T.
Nippon Oil Company Ltd.
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