Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate
Patent
1984-12-19
1986-09-02
Lee, Lester L.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From phenol, phenol ether, or inorganic phenolate
528125, 528126, 528128, 528173, 528176, 528191, 528193, 528194, 528271, C08G 6360
Patent
active
046097201
ABSTRACT:
Disclosed herein is a wholly aromatic polyester comprising a structural unit represented by the formula (A): ##STR1## (i) a structural unit represented by the formulae (B), (C) and (D): ##STR2## or (ii) a structural unit represented by the formulae (E), (F) and (G): ##STR3## wherein X represents a C.sub.1 to C.sub.5 -hydrocarbon group, a halogen atom or an alkoxy group, and ##STR4## wherein Y represents an oxygen atom, a sulfur atom, a SO.sub.2 group, a carbonyl group, an alkylene group or an alkylidene group, or a single bond directly connecting the two benzene rings and R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7 and R.sup.8 represent respectively a hydrogen atom, a halogen atom or a hydrocarbon group, in the case of (i), the aromatic polyester containing 5 to 20 mol % of the unit (A), 35 to 65 mol % of the unit (B), 15 to 45 mol % of the unit (C) and 5 to 20 mol % of the unit (D), and the amount of the unit (A) and the amount of the unit (D) being substantially equimolar, in the case of (ii), the aromatic polyester containing the units (A), (E), (F) and (G), so that the sum of the amounts of the unit (A) and the unit (E) and the sum of the amounts of the unit (F) and the unit (G) are substantially equimolar, the ratio of the amount of the unit (A) to the amount of the unit (E) is from 95:5 to 5:95 and the ratio of the amount of the unit (F) to the amount of the unit (G) is from 65:35 to 100:0, and the aromatic polyester showing a logarithmic viscosity of at least 0.4 dl/g (determined as a solution of the aromatic polyester dissolved in a mixed solvent of tetrachloroethane and phenol (1:1 by weight) at a concentration of 0.5% by weight).
REFERENCES:
patent: 3991013 (1976-11-01), Pletcher
patent: 4083829 (1978-04-01), Calundann et al.
patent: 4118372 (1978-10-01), Schaefgen
patent: 4153779 (1979-05-01), Jackson, Jr. et al.
patent: 4238600 (1980-12-01), Jackson, Jr. et al.
patent: 4242496 (1980-12-01), Jackson, Jr. et al.
patent: 4287332 (1981-09-01), Jackson, Jr. et al.
patent: 4347349 (1982-08-01), Siemionko
patent: 4355134 (1982-10-01), Charbonneau et al.
patent: 4360658 (1982-11-01), Jackson, Jr. et al.
patent: 4370466 (1983-01-01), Siemionko
patent: 4412058 (1983-10-01), Siemionko
patent: 4447593 (1984-05-01), Funakoshi et al.
Nakamura Masahiko
Yoshimura Tamotsu
Lee Lester L.
Mitsubishi Chemical Industries Limited
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