Melt polymerization process for preparing aromatic polyesters

Details Melt polymerization process for preparing aromatic polyesters Melt polymerization process for preparing aromatic polyesters

1997-01-15

1998-12-29

Yoon, Tae

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From carboxylic acid or derivative thereof

528192, 528194, 528302, 528308, C08G 6387, C08G 6352, C08G 6316

Patent

active

058543759

ABSTRACT:
A process for preparing a polyester which includes the step of heating a reaction mixture comprising (i) diesters of dihydric phenols and C.sub.1-10 aliphatic monoacids, (ii) aromatic dicarboxylic acids, and (iii) a catalytic amount of an organic cation-containing salt at a temperature above the melt temperature of the diesters, under reaction conditions sufficient to form the corresponding polyester. Use of this process subjects the polymers prepared thereby to a thermal history which causes relatively little deterioration of the polymer's properties.

REFERENCES:
patent: 4256624 (1981-03-01), Calundann
patent: 4330457 (1982-05-01), East et al.
patent: 4393191 (1983-07-01), East
patent: 4473682 (1984-09-01), Calundann et al.
patent: 4539386 (1985-09-01), Yoon
patent: 4612360 (1986-09-01), Ort
patent: 4841009 (1989-06-01), Kelsey
patent: 4889911 (1989-12-01), Pielartzik et al.
patent: 5015722 (1991-05-01), Charbonneau et al.
patent: 5110896 (1992-05-01), Waggoner et al.
patent: 5136013 (1992-08-01), Arlt et al.
patent: 5412061 (1995-05-01), King, Jr. et al.
patent: 5461089 (1995-10-01), Handyside et al.
patent: 5466774 (1995-11-01), Kanno et al.
patent: 5494952 (1996-02-01), Hirata et al.
patent: 5494992 (1996-02-01), Kanno et al.
patent: 5496910 (1996-03-01), Mang et al.
patent: 5502118 (1996-03-01), Macholdt et al.
patent: 5510404 (1996-04-01), Nakae et al.
patent: 5563016 (1996-10-01), Baur et al.
patent: 5563209 (1996-10-01), Schumann et al.
patent: 5614599 (1997-03-01), Bales et al.

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