Process for producing aromatic polyester

Details Process for producing aromatic polyester Process for producing aromatic polyester

1998-04-27

2000-03-28

Vargot, Mathieu D.

Plastic and nonmetallic article shaping or treating: processes

Direct application of electrical or wave energy to work

Utilizing electrostatic charge, field, force

264211, 264216, 528275, 528286, B29C 4126, C08G 6316

Patent

active

060427736

ABSTRACT:
A process for producing an aromatic polyester by esterifying a dicarboxylic acid mainly composed of an aromatic dicarboxylic acid and a glycol mainly composed of ethylene glycol in the presence of 1 to 30 mmol %, based on the dicarboxylic acid, of a quaternary phosphonium sulfonate having ester-forming functional group(s), and then polycondensing the resulting product.

REFERENCES:
patent: 5188774 (1993-02-01), Nitta et al.

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