Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Reexamination Certificate
2007-06-05
2007-06-05
Egwim, Kelechi C. (Department: 1713)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
C524S159000, C524S161000, C524S164000, C524S166000, C524S462000, C524S500000, C524S505000, C524S612000, C525S090000, C525S240000
Reexamination Certificate
active
10756414
ABSTRACT:
The present invention provides a polymeric-type antistatic agent containing a polymer composition consisting of a polymeric-type antistatic agent containing a resin or/and an elastomer as a main component thereof; or/and a thermoplastic resin having a polar group or/and an elastomer having the polar group. At least one kind of an anion-containing salt, having a fluoro group and a sulfonyl group, is added to the polymer composition without intermediary of a medium consisting of a low-molecular-weight polyether-containing compound or a low-molecular-weight polar compound whose number-average molecular weight is not more than 5000. The present invention also provides a composition, for a conductive roller or the like, containing polymer components and the polymeric-type antistatic agent dispersed in the polymer components.
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Fujihana Noriaki
Hattori Takayuki
Mizoguchi Tetsuo
Okubo Hiromasa
Sakaki Toshiaki
Birch & Stewart Kolasch & Birch, LLP
Egwim Kelechi C.
Sanko Chemical Industry Co., Ltd.
Sumitomo Rubber Industries Ltd.
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