Transesterification process for preparation of linear...

Details Transesterification process for preparation of linear... Transesterification process for preparation of linear...

C - Chemistry, Metallurgy

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C08G 63/68 (2006.01) C08G 63/18 (2006.01) C08G 63/20 (2006.01) C08G 63/50 (2006.01)

Patent

CA 1147892

- 1 - Case 4154 DAS:mh 3/25/79 IMPROVED TRANSESTERIFICATION PROCESS FOR PREPARATION OF LINEAR POLYESTERS 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 dicar- boxylic acid with the alcohol prior to carrying out the transesteri- fication polymerization reaction of said aryl ester and the bisphenol.

353318

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