Functionalized polymers

Details Functionalized polymers Functionalized polymers

2008-10-20

2011-10-18

Teskin, Fred M (Department: 1762)

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

C525S102000, C525S105000, C525S123000, C525S131000, C524S526000

Reexamination Certificate

active

08039545

ABSTRACT:
A functionalized polymer includes a polymer chain and a terminal group linked to the chain through a functionality that contains one or more urethane groups. The functionalized polymer can be provided by reacting a nucleophile with a polymer having terminal iso(thio)cyanate functionality which, in turn, can be provided by reacting a terminally active polymer with a polyiso(thio)cyanate. Even polymers that contain substantial amounts of styrene mer can be used in the described process.

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