Poly(ester) carbonate molding compositions

Details Poly(ester) carbonate molding compositions Poly(ester) carbonate molding compositions

2007-03-06

2007-03-06

Buttner, David J. (Department: 1712)

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

Synthetic resins

Processes of preparing a desired or intentional composition...

C524S125000, C524S126000, C524S130000, C524S141000, C525S067000

Reexamination Certificate

active

10725210

ABSTRACT:
A thermoplastic molding compositions having improved stress cracking resistance is disclosed. The composition containsA) 40 to 99.5 parts by weight of at least one branched resin selected from a first group consisting of aromatic polycarbonate and polyestercarbonate andB) 0.5 to 60 parts by weight of graft polymer containing a grafting shell and a grafting base, said grafting base being other than polybutadiene rubber.The structure of the branched resin contains at least one residue of a branching agent selected from among tri-functional phenolic monomer and tetra-functional phenolic monomer.

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