Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate
Patent
1990-08-15
1991-04-09
Anderson, Harold D.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From phenol, phenol ether, or inorganic phenolate
528176, 528179, 528194, C08G 6302
Patent
active
050066285
ABSTRACT:
A process for preparing a polyarylate by heating in the melt phase in the presence of a 4-dialkylaminopyridine, an acid anhydride which is in the range of stoichiometric amount to 25% molar excess, bisphenol-A and a dicarboxylic acid selected from the group consisting of isophthalic acid and mixtures of isophthalic acid and terephthalic acid wherein the ratio of isophthalic acid to terephthalic acid is in the range of 100:0 to 25:75.
REFERENCES:
patent: 4485230 (1984-11-01), Yu
Macromolecules 1989, 22, 1065-1074.
Bell Bruce C.
Darnell W. Ronald
Jackson, Jr. Winston J.
Strand Marc A.
Anderson Harold D.
Eastman Kodak Company
Heath, Jr. William P.
Martin Charles R.
Mosley T.
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