Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From carboxylic acid or derivative thereof
Patent
1989-07-03
1990-10-30
Anderson, Harold D.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From carboxylic acid or derivative thereof
528272, C08G 6300, C08G 6302
Patent
active
049669583
ABSTRACT:
Aromatic polyesters are prepared by the transesterification of aromatic dicarboxylic acid dialkyl esters with diester derivatives of divalent phenols at temperatures of about 260.degree. to 350.degree. C. with removal of the resulting monocarboxylic acid alkyl ester from the reaction mixture.
REFERENCES:
patent: 4313870 (1982-02-01), Imai et al.
Alewelt Wolfgang
Bottenbruch Ludwig
Buysch Hans-Josef
Grigo Ulrich
Tacke Peter
Anderson Harold D.
Bayer Aktiengesellschaft
Mosley T.
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