Browse Prior Art Database

FUSER ROLL COATING

IP.com Disclosure Number: IPCOM000024585D
Original Publication Date: 1981-Feb-28
Included in the Prior Art Database: 2004-Apr-02
Document File: 2 page(s) / 64K

Publishing Venue

Xerox Disclosure Journal

Abstract

In a disclosure published in Volume 4, Number 6 of the Xerox Disclosure Journal, November/December 1979, page 82 1, the problems encountered in rendering an elastomeric material thermally conducting by incorporating therein large volume quantities of high thermal conductivity fillers are discussed. It was proposed in that disclosure to treat the filler with an alkoxy organotitanate, either prior to its addition to the elastomer or immediately after the filler is added to the elastomer. The alkoxy organotitanate imparts an organic coating around all of the filler particles, resulting in easier processing and averting weakening of the elastomer.

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LEROX DISCLOSURE JOURNAL

FUSER ROLL COATING Proposed Arnold W. Henry Classification

U.S. C1. 428/375 Int. C1. D02g 3/00

In a disclosure published in Volume 4, Number 6 of the Xerox Disclosure Journal, November/December 1979, page 82 1, the problems encountered in rendering an elastomeric material thermally conducting by incorporating therein large volume quantities of high thermal conductivity fillers are discussed. It was proposed in that disclosure to treat the filler with an alkoxy organotitanate, either prior to its addition to the elastomer or immediately after the filler is added to the elastomer. The alkoxy organotitanate imparts an organic coating around all of the filler particles, resulting in easier processing and averting weakening of the elastomer.

In accordance with the present disclosure, the filler is treated with a silane coupling agent, such as vinyl tris(2-methoxyethoxy) silane or octyltriethyoxy-silane. The silane functions similarly to the previously disclosed alkoxy organotitanate.

The pretreating of fillers with an organosilane before incorporating the treated fillers into rubbers is known. See, e.g., U.S. Patents 3,350,345 and 3,376,188. However, in the prior art, such rubbers having pretreated fillers therein were intended for such purposes as automotive tires, drive belts, rubber hoses, etc., where the fillers are primary for reinforcing purposes. Thus, the amount of fillers in such rubbers is generally about 30% by weight of the rubber....