Browse Prior Art Database

METALLIZED FOAM COMPOSITIONS FOR XEROGRAPHIC DEVICES

IP.com Disclosure Number: IPCOM000024162D
Original Publication Date: 1979-Dec-31
Included in the Prior Art Database: 2004-Apr-02
Document File: 2 page(s) / 62K

Publishing Venue

Xerox Disclosure Journal

Abstract

Metallized, open-celled, electrically conductive polymer based foams, such as polyurethane foams, are well known in the art. The open-celled polyurethane foams are coated uniformly with a thin film of metal by any one of several commercial techniques, such as vapor deposition or electroless deposition. For example, an aluminum vapor deposition technique or an electroless nickel deposition process may be used to deposit the respective metals upon the polyurethane foam materials.

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XEROX DISCLOSURE JOURNAL

METALLIZED FOAM COMPOSITIONS FOR XEROGRAPHIC DEVICES Charles Scouten

Proposed Classification
U.S. Cl. 29/132

Int. Cl. B21b 31/08

Metallized, open-celled, electrically conductive polymer based foams, such as
polyurethane foams, are well known in the art. The open-celled polyurethane foams are coated uniformly with a thin film of metal by any one of several commercial techniques, such as vapor deposition or electroless deposition. For example, an aluminum vapor deposition technique or an electroless nickel deposition process may be used to deposit the respective metals upon the polyurethane foam materials.

The present disclosure relates to the use of the foregoing metallized foam materials as substrates for various members in xerographic devices. Exemplary of such members in xerographic devices are fuser back-up rolls, paper transport members and bias transfer members. One type of bias transfer member is described in U.S. Patent 4,058,879.

Bias transfer members or bias transfer rolls made of the metallized polyurethane foam material have the necessary conductivity and high humidity insensitivity generally desirable for such members.

In alternative embodiments, the metallized foam member is overcoated to protect the member from abrasion. For example, the member is overcoated with an abrasion r.esistant polyurethane overcoating to protect the metallized foam material without loss of the desirable properties of the metallized foam. Any suitabl...