Transesterification process for preparation of linear polyesters

Details Transesterification process for preparation of linear polyesters Transesterification process for preparation of linear polyesters

1979-06-04

1981-03-10

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, 528167, 528169, 528173, 528176, 528184, 528190, 528191, 528193, 528194, 528271, C08G 6318, C08G 6320

Patent

active

042555558

ABSTRACT:
An improved transesterification process for preparation of a linear aromatic polyester comprising bisphenol and dicarboxylic acid monomer units terminated with a carboxylic acid ester groups derived from a long chain aliphatic monofunctional alcohol comprises as the improvement partially transesterifying a diaryl ester of the dicarboxylic acid with the alcohol prior to carrying out the transesterification polymerization reaction of said aryl ester and the bisphenol.

REFERENCES:
patent: 3160602 (1965-12-01), Kantor et al.
patent: 3177179 (1965-04-01), Lee et al.
patent: 3216970 (1965-11-01), Conix
patent: 3471441 (1969-10-01), Hindersinn
patent: 3546165 (1970-12-01), Morgan
patent: 3939117 (1976-02-01), Ueno
patent: 3956422 (1976-05-01), Takahashi et al.
"Organic Chemistry" T. W. Solomons (1976), pp. 757-758._
"J. Polymer Sci." vol. II (1973), pp. 2537-2545.
"Textbook of Polymer Sci.", F. W. Billmeyer, Jr. (1971), pp. 260-261.
"Condensation Polymer" P. W. Morgan (1965), p. 12.

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