Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From carboxylic acid or derivative thereof
Patent
1989-05-25
1990-12-04
Foelak, Morton
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From carboxylic acid or derivative thereof
528274, 528290, 528292, 528295, 528298, 528302, 528304, 528306, 528370, 528373, 525420, 525425, 525432, 525433, 525437, 525444, 525445, 525450, 525451, C08G 6302
Patent
active
049755226
ABSTRACT:
The invention relates to linear, thermotropic crosslinkable polymers, which comprises (A) polycondensing a complex dicarboxylic dichloride having the formula ##STR1## wherein Ar.sub.1 is ##STR2## Ar.sub.2 is ##STR3## Y is H, F, Cl, CN, phenyl, C.sub.n H.sub.2n+1, or OC.sub.n H.sub.2n+1, q is a cardinal number between 1 and 2, and
REFERENCES:
patent: 3809679 (1970-04-01), Lenz et al.
patent: 4070433 (1978-01-01), Miyoshi et al.
patent: 4073777 (1978-02-01), O'Neill et al.
patent: 4272625 (1981-06-01), McIntyre et al.
Grasshoff Karin
Ratzsch Manfred
Acquah Sam A.
Adademie der Wissenschaften der DDR
Foelak Morton
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