Thermoplastic resin and method using heterocyclic amine catalyst

Details Thermoplastic resin and method using heterocyclic amine catalyst Thermoplastic resin and method using heterocyclic amine catalyst

Filed on

1993-06-17

Date issued

1994-12-13

Examiner

Kight, III, John

Patent Class

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

SubClass

Synthetic resins

SubSubClass

From phenol, phenol ether, or inorganic phenolate

Other Related Categories

528196, 528198, C08G 6400

Type

Patent

Status

active

Patent number

053730836

Description

ABSTRACT:
The present invention discloses thermoplastic resins and methods for producing said resins utilizing a single component heterocyclic amine catalyst system. More particularly, the invention discloses resins such as high molecular weight polycarbonate resins that are produced by a solventless melt condensation reaction between diphenol carbonate (DPC) and bisphenol A (BPA) in the presence of a heterocyclic amine catalyst.

REFERENCES:
patent: 4316980 (1982-02-01), Idel et al.
patent: 4316981 (1982-02-01), Brunell
patent: 4695620 (1987-09-01), Masumoto et al.
patent: 4880897 (1989-11-01), Ho et al.
patent: 4889911 (1989-12-01), Pielartzik et al.
patent: 5025083 (1991-06-01), Ueda et al.
patent: 5149770 (1992-09-01), Kanno et al.

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