Silicon-containing polytrimethylene homo- for copolyether...

Details Silicon-containing polytrimethylene homo- for copolyether... Silicon-containing polytrimethylene homo- for copolyether...

2008-03-27

2009-12-08

Gulakowshi, Randy (Department: 1796)

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

Synthetic resins

Processes of preparing a desired or intentional composition...

C528S029000

Reexamination Certificate

active

07629396

ABSTRACT:
A silicon-containing polytrimethylene homo- or copolyether wherein at least a portion of the polymer end groups are silicon-containing end groups having the formula: —OSi(X)(Y)(Z), where X and Y are groups that are easily displaceable from silicon by reaction with water and/or alcohols, and Z is selected from the group consisting of (a) C1-C20linear or branched alkyl groups, (b) cycloaliphatic groups, (c) aromatic groups, each of (a), (b) and (c) being optionally substituted with a member selected from the group consisting of O, N, P and S, (d) hydrogen, and (e) groups that are easily displaceable from silicon by water and/or alcohol.

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