Method for free radical reduction of dithiocarbonylated or...

Details Method for free radical reduction of dithiocarbonylated or... Method for free radical reduction of dithiocarbonylated or...

2006-09-19

2006-09-19

Wu, David W. (Department: 1713)

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S140000, C526S317100, C524S115000, C524S134000, C524S137000, C528S390000

Reexamination Certificate

active

07109276

ABSTRACT:
The invention concerns a method for preparing a polymer, comprising a step which consists in contacting: (A) at least a living organic polymer having at its chain end a dithiocarbonylated or dithiophosphorylated function capable of being reactivated; (B) at least a source of free radicals; and (C) at least an organic compound bearing a labile hydrogen atom, whereby the dithiocarbonylated or dithiophosphorylated function present on said living organic polymer is substituted by a hydrogen atom.

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