Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Treating polymer containing material or treating a solid...
Reexamination Certificate
2006-11-28
2006-11-28
Boykin, Terressa (Department: 1711)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Treating polymer containing material or treating a solid...
C525S330400, C525S386000, C525S388000, C528S480000, C528S483000
Reexamination Certificate
active
07141646
ABSTRACT:
The present invention provides a method of purifying a vinyl polymer to be used as a component of a composition capable of undergoing hydrosilylation.The present invention provides a vinyl polymers obtainable by atom transfer radical polymerization can be purified economically and efficiently by adsorption treatment using an acidic adsorbent and a basic adsorbent combinedly, with the result that the reactivity in hydrosilylation thereof is improved. Thus, the polymers can be used as components in hydrosilylation reaction-susceptible compositions.
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Kitano Kenichi
Nakagawa Yoshiki
Boykin Terressa
Connolly Bove & Lodge & Hutz LLP
Kaneka Corporation
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