Browse Prior Art Database

IMPROVING RELEASE OF HIGHLY LOADED RTV COMPOUNDS

IP.com Disclosure Number: IPCOM000024588D
Original Publication Date: 1981-Feb-28
Included in the Prior Art Database: 2004-Apr-02
Document File: 2 page(s) / 50K

Publishing Venue

Xerox Disclosure Journal

Abstract

This invention relates to a method for improving the release properties of a thermally conductive fusing device having an elastomeric layer thereon which contains a substantial amount of a thermally conducting filler. The adverse effect on the release properties of the fusing device due to the high surface energy fillers is ameliorated by coating the thermally conducting elastomeric layer with a thin layer of an unfilled RTV (room temperature vulcanizable) elastomeric material having disilanol end groups. Preferably, the unfilled, disilanol endblocked RTV has a low initial molecular weight. The unfilled disilanol endblocked RTV material may be applied to the surface of the fusing device by any of the well-known coating methods, for example, by spraying. The object of the invention also can be achieved by using a silanol containing silicone oil as a release agent in conjunction with the fusing device having a surface layer of an elastomer containing a high surface energy thermally conducting filler.

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LEROX DISCLOSURE JOURNAL

IMPROVING RELEASE OF HIGHLY LOADED RTV COMPOUNDS Arnold W. Henry

Proposed Classification
U.S. Cl. 430/124 Int. C1. G03g 13/20

This invention relates to a method for improving the release properties of a thermally conductive fusing device having an elastomeric layer thereon which contains a substantial amount of a thermally conducting filler. The adverse effect on the release properties of the fusing device due to the high surface energy fillers is ameliorated by coating the thermally conducting elastomeric layer with a thin layer of an unfilled RTV (room temperature vulcanizable) elastomeric material having disilanol end groups. Preferably, the unfilled, disilanol endblocked RTV has a low initial molecular weight. The unfilled disilanol endblocked RTV material may be applied to the surface of the fusing device by any of the well-known coating methods, for example, by spraying. The object of the invention also can be achieved by using a silanol containing silicone oil as a release agent in conjunction with the fusing device having a surface layer of an elastomer containing a high surface energy thermally conducting filler.

Volume 6 Number 1 January/February 1981 49

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50

   XEROX DISCLOSURE JOURNAL Volume 6 Number 1 January/February 1981

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