Polyester-polycarbonate compositions stabilized against ester-ca

Details Polyester-polycarbonate compositions stabilized against ester-ca Polyester-polycarbonate compositions stabilized against ester-ca

1995-04-17

1999-07-13

Dawson, Robert

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525479, 525460, 525140, 525141, 525145, C08F 2000

Patent

active

059228164

ABSTRACT:
A polyester-polycarbonate composition comprising (A) at least one polyester prepared by the reaction of at least one alkenediol with at least one dicarboxylic acid or dialkyl ester thereof in the presence of a metallic catalyst, (B) at least one polycarbonate, (C) at least one silyl phosphate, the silyl phosphate being present in an amount effective to inhibit ester-carbonate interchange in the composition, optionally, (D) an organic or inorganic colorant, particularly, acid sensitive organic or inorganic colorants, (E) an impact modifier, and (F) a stabilizer. A method for stabilizing polyester-polycarbonate compositions against ester-carbonate interchange is also provided.

REFERENCES:
patent: 3441450 (1969-04-01), Mueller
patent: 3546177 (1970-12-01), Mueller
patent: 4125551 (1978-11-01), Petersen
patent: 4401804 (1983-08-01), Wooten et al.
patent: 4532290 (1985-07-01), Jaquiss et al.
patent: 5041586 (1991-08-01), Beck et al.

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