Compatible blend of polycarbonate with vinyl (co)polymer

Details Compatible blend of polycarbonate with vinyl (co)polymer Compatible blend of polycarbonate with vinyl (co)polymer

2006-05-09

2006-05-09

Buttner, David J. (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...

C525S133000, C525S146000, C525S148000

Reexamination Certificate

active

07041732

ABSTRACT:
A compatible blend of polycarbonate resin with a vinyl (co)polymer blending partner is disclosed. The preparation of inventive blend comprise reactive blending of polycarbonate, a vinyl (co)polymer and a novel compatibilizer in the presence of a transesterification catalyst and under conditions of time and temperature designed to promote transesterification. The compatibilizer is the polymerized reaction product of at least one vinyl monomer that contains no hydroxy groups and a hydroxyl containing monomer conforming to (I)where R denotes H or C1–C4alkyl, R1denotes H, Cl, Br, C1–C4alkyl, cyclohexyl, or C1–C4alkoxy, a is 0 or 1, b is 0 or 1, c is 0 or 1, n is an integer of 0 to 4 and X is an OH group. The compatible blends of the invention are characterized by their improved properties.

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