Polymers and curable compositions

Details Polymers and curable compositions Polymers and curable compositions

2008-03-11

2008-03-11

Lipman, Bernard (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...

C525S330600, C525S366000, C525S375000

Reexamination Certificate

active

11115258

ABSTRACT:
The present invention is concerned with a vinyl polymer having at least one group of the general formula (1) permolecule at the molecular chain terminus.in-line-formulae description="In-line Formulae" end="lead"?—Z—R—CR1═CR2R3  (1)in-line-formulae description="In-line Formulae" end="tail"?wherein Z represents an oxygen atom, a sulfur atom, a group of the formula NR′, R′ represents a univalent hydrocarbon group containing 1 to 20 carbon atoms, or a bivalent organic group containing 1 to 20 carbon atoms, and R represents a carbonyl group, a direct bond or a bivalent organic group containing 1 to 20 carbon atoms; R1and R2are the same or different and each represents a hydrogen atom or a univalent organic group containing 1 to 20 carbon atoms, and R3represents an organic group containing 1 to 20 carbon atoms.The present invention is further concerned with a curable composition comprising the above vinyl polymer.

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