Transparent two phase polyester-polycarbonate compositions

Details Transparent two phase polyester-polycarbonate compositions Transparent two phase polyester-polycarbonate compositions

2008-09-16

2008-09-16

Buttner, David (Department: 1796)

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

Synthetic resins

Processes of preparing a desired or intentional composition...

C524S099000, C524S100000, C524S120000, C524S140000, C525S439000

Reexamination Certificate

active

11179165

ABSTRACT:
Polymer compositions comprising:(A) at least one polyester (A) comprising:(1) diacid residues comprising about 70 to 100 mole percent phthalic acid residues; and 0 to about 30 mole percent of modifying dicarboxylic acid residues, wherein the total mole percent of diacid residues is equal to 100 mole percent; and(2) diol residues comprising about 0 to 45 mole percent 1,4-cyclohexanedimethanol residues, and 100 to about 55 mole percent of other alkylene glycol residues, wherein the total mole percent of diol residues is equal to 100 mole percent; and(B) a miscible blend of:(1) at least one polycarbonate (B) of bisphenol A;(2) at least one polyester (C) consisting essentially of 1,4-cyclohexanedicarboxylic acid residues and at least one glycol selected from 70 to 100 mole percent of residues of 1,4-cyclohexanedimethanol residues and 0 to 30 mole percent of residues of polytetramethylene glycol.

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