Process for modification of polymer

Details Process for modification of polymer Process for modification of polymer

2007-03-27

2007-03-27

Choi, Ling-Sui (Department: 1713)

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

Synthetic resins

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

C525S374000, C525S333800

Reexamination Certificate

active

11091483

ABSTRACT:
A process for modification of a polymer comprising modifying a polymer (A) capable of decomposing by carbon radicals present in the molecule thereof using a compound (B) having a nitroxide radical in the molecule thereof and a radical initiator (C) in a ratio of (B)/(C) (molar ratio) of at least 0.7, whereby organic groups derived from the nitroxide radicals are introduced into the polymer and a modified unhalogenated butyl rubber obtained therefrom.

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