Modified polymer and composition containing the same

Details Modified polymer and composition containing the same Modified polymer and composition containing the same

2008-12-22

2011-12-06

Rabago, Roberto (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...

C524S059000, C524S080000, C524S401000, C524S575000, C524S577000, C524S578000, C525S331900, C525S332500, C525S332700, C525S332900, C525S333200, C525S333300, C525S333600, C525S342000, C525S374000, C525S379000, C525S384000, C525S385000

Reexamination Certificate

active

08071676

ABSTRACT:
A primary modified polymer composed of (1) a hydrogenated polymer obtained by hydrogenating at least one non-hydrogenated polymer selected from the group consisting of polymers comprising conjugated diene monomer units and copolymers comprising conjugated diene monomer units and vinyl aromatic monomer units and (2) groups of a primary modifier having a functional group which are bonded to the polymer (1), which has a specific vinyl aromatic monomer unit content, a specific vinyl aromatic polymer block content, a specific weight-average molecular weight, and a specific degree of hydrogenation of the double bonds of conjugated diene monomer units; a secondary modified polymer obtained by reacting a primary modified polymer composed of (β) a base polymer and (γ) groups of a primary modifier having a functional group which are bonded to the polymer (β) with a secondary modifier; and compositions comprising the primary or secondary modified polymer and at least one other component.

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