Silicone rubber roller for electrophotography and method of prod

Details Silicone rubber roller for electrophotography and method of prod Silicone rubber roller for electrophotography and method of prod

1995-04-25

1998-11-10

Yamnitzky, Marie

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

Synthetic resins

Treating polymer containing material or treating a solid...

524588, 264 51, 264101, 264232, 264233, 264234, 264236, B29C 7100, B29B 1500

Patent

active

058345841

ABSTRACT:
An electrically conductive rubber roller for electrophotography which does not exhibit touch memory or bleed out of remnant siloxanes, even after 18 days of storage without use, and, in a preferred form, exhibits little change in electric resistance with changes in environment. This roller is made by making a rubber molding material composition containing a raw polysiloxane rubber which does not contain more than 5,000 ppm of low molecular weight polysiloxanes, cyclic siloxanes and non-functional silicone oils (remnant siloxanes); molding this composition into a roller; at least primarily crosslinking the rubber in the roller; and then subjecting the crosslinked rubber roller to heating under a vacuum.

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