Transparent compositions, methods for the preparation...

Details Transparent compositions, methods for the preparation... Transparent compositions, methods for the preparation...

2008-01-22

2008-01-22

Zimmer, Marc S. (Department: 1712)

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

Synthetic resins

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

C525S446000, C528S286000, C528S026000, C528S029000

Reexamination Certificate

active

11025249

ABSTRACT:
A thermoplastic composition is disclosed, comprising the reaction product of: a polyester polycarbonate comprising a polyester unit and a polycarbonate unit; a polysiloxane polycarbonate copolymer having a haze of 30% or less, comprising a polycarbonate unit and a polysiloxane unit; and a transesterification catalyst. The resulting thermoplastic composition has a haze of 30% or less as measured according to ASTM D1003-00 at a thickness of 3.2 millimeters. A method of forming the composition and articles formed from the composition are also disclosed.

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