Polycarbonate compositions

Details Polycarbonate compositions Polycarbonate compositions

2011-05-03

2011-05-03

Egwim, Kelechi C (Department: 1762)

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

C528S127000, C528S128000, C528S196000, C528S201000, C528S203000, C548S470000, C548S482000

Reexamination Certificate

active

07935777

ABSTRACT:
Polycarbonate compositions are disclosed. The compositions comprise a polycarbonate polymer (A) having repeating units derived from 2-phenyl-3,3-bis(4-hydroxyphenyl)phthalimidine (PPPBP); a polycarbonate polymer (B) which is different from polymer (A); an impact modifier (C) which is different from polymer (A) and polymer (B); and talc filler (D). The resulting composition has an improved combination of properties, particularly heat resistance, low temperature impact performance, and viscosity.

REFERENCES:
patent: 7135538 (2006-11-01), Glasgow et al.
patent: 7491788 (2009-02-01), Leenders et al.
patent: 2005/0222334 (2005-10-01), Srinivasan et al.
patent: 2005/0288517 (2005-12-01), Rai et al.
patent: 2007/0010619 (2007-01-01), Chatterjee et al.
patent: 2007/0123683 (2007-05-01), Arumugam et al.
patent: 2008/0011513 (2008-01-01), Kamps et al.
patent: 2008/0029744 (2008-02-01), Jansen et al.
patent: 2008/0033108 (2008-02-01), Kung et al.
patent: 2009/0088504 (2009-04-01), Chatterjee et al.

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