Process for producing vinyl polymer having alkenyl group at...

Details Process for producing vinyl polymer having alkenyl group at... Process for producing vinyl polymer having alkenyl group at...

2006-03-07

2006-03-07

Pezzuto, Helen L. (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...

C525S259000, C525S262000, C525S291000, C526S222000

Reexamination Certificate

active

07009004

ABSTRACT:
Objects of the present invention are to provide a process for easily producing an alkenyl-terminated vinyl polymer without using a metal compound requiring a complicated purification step, and to provide a curable composition containing the vinyl polymer. An alkenyl group is incorporated into an end of a vinyl polymer having a thiocarbonylthio structure at the end to produce an alkenyl-terminated vinyl polymer. Mixing this vinyl polymer with a compound having a hydrogen-silicon bond and a hydrosilylation catalyst gives the curable composition.

REFERENCES:
patent: 6153705 (2000-11-01), Corpart et al.
patent: 6545098 (2003-04-01), Bouhadir et al.
patent: 6642318 (2003-11-01), Chiefari et al.
patent: 0 348 166 (1989-12-01), None
patent: WO 98/01478 (1998-01-01), None
patent: WO 99/05099 (1999-02-01), None
patent: WO 99/31144 (1999-06-01), None
patent: WO 00/02939 (2000-01-01), None

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