Xerox Corporation

Other

Lieng-Huang Lee

Christine J Tarnawskyj

Deborah J Nichol-Landry

Santokh Singh Badesha

Joseph C Mammino

David H Pan

Arnold W Henry

George J Heeks

John W Spiewak

Donald S Sypula

Dennis A Abramsohn

Robert M Ferguson

Merlin E Scharfe

Louis D Fratangelo

Andrew R Melnyk

Clifford H Griffiths

Victor Berko-Boateng

Paul J Brach

Edward C Williams

Diane C Lincoln

Deborah N Landry

A fuser member comprised of a supporting substrate comprising an outer layer of a volume grafted elastomer, which is a substantially uniform integral interpenetrating network of a hybrid composition of a fluoroelastomer and a polyorganosiloxane, said volume graft having been formed by dehydrofluorination of said fluoroelastomer by a nucleophilic dehydrofluorinating agent, followed by addition polymerization by the addition of an alkene or alkyne functionally terminated polyorganosiloxane and a polymerization initiator; and wherein said outer layer contains a reactive metal oxide in an amount of from about 2 to about 7 weight percent.

Fuser member overcoated with a fluoroelastomer, polyorganosiloxane and

An electrophotographic imaging member is disclosed which contains a substrate having an electrically conductive surface, a dried continuous adhesive layer comprising a semi-interpenetrating network derived from a coating mixture comprising a blend of a self-crosslinkable polyurethane and a non-self-crosslinkable polyurethane, a thin homogeneous charge generating layer, and a charge transport layer comprising a film forming polymer.

Electrophotographic imaging members containing a polyurethane adhesive

An electrophotographic imaging member comprising a supporting substrate, at least one photoconductive layer and an overcoating layer having one side contiguous with the electrophotographic imaging layer and the other side exposed to the ambient atmosphere, the overcoating layer comprising a solid solution or molecular dispersion of a metal acetyl acetonate in an insulating film forming polymer.

Overcoated electrophotographic photoreceptor contains metal acetyl

A process is disclosed for forming at least one thin substantially uniform fluid coating comprising polymeric film forming material on a cylindrical mandrel, solidifying the fluid coating to form a uniform solid coating and separating the uniform solid coating from the mandrel. The process may comprise forming at least one thin substantially uniform fluid coating comprising polymeric film forming material around a cylindrical mandrel, the mandrel having a larger mass or lower thermal conductivity than the polymeric film forming material and a critical surface tension greater than the surface tension of the fluid coating, solidifying the fluid coating to form at least one thin substantially uniform solid coating comprising the polymeric film forming material around the cylindrical mandrel, heating both the uniform solid coating and the mandrel to a temperature at least above the apparent T.sub.g of the solid coating to expand the coating and the mandrel while maintaining contact between the coating and the mandrel, cooling the coating to below the apparent T.sub.g of the solid coating prior to substantial cooling of the mandrel, and cooling the mandrel whereby the mandrel contracts at a greater rate than the polymeric coating until separation occurs between the mandrel and the coating, and removing the coating from the mandrel.

Process for fabricating a belt

A process for forming an overcoated electrophotographic imaging member comprising applying on an electrophotographic imaging member a coating in liquid form comprising a cross-linkable siloxanol-colloidal silica hybrid material having at least one silicon bonded hydroxyl group per every three --SiO-- units and a catalyst for the cross-linkable siloxanol-colloidal silica hybrid material, the coating in liquid form having an acid number less than about 1 and curing the cross-linkable siloxanol-colloidal silica hybrid material until the siloxanol-colloidal silica hybrid material forms a hard cross-linked solid organosiloxane-silica hybrid polymer layer.

Process for preparing overcoated electrophotographic imaging members

This invention is directed to a photoresponsive device comprised of a substrate, a photoconductive composition comprised of an inorganic photoconductive composition, or a layered organic photoresponsive device comprised of a photogenerating layer and a charge transport layer, followed by an overcoating top layer of a silicone resin containing therein a silicone containing ammonium salt of the formula ##STR1## wherein, R.sub.1, R.sub.2, R.sub.3, are independently selected from the group consisting of aliphatic and substituted aliphatic radicals, wherein the substituents include for example alkyl radicals, R.sub.4 is selected from the group consisting of aliphatic radicals, substituted aliphatic radicals, and the group ##STR2## wherein Y is a number of from about 2 to about 4, and R.sub.5 is hydrogen or an alkyl radical, X is an anion, and Z is a number of from 1 to about 5.

Silicone ammonium salts and photoresponsive devices containing same

Disclosed is a novel hole trapping layer and the use of this layer in an overcoated photoresponsive device, this hole trapping layer being comprised of materials of the following formulas: ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, and R.sup.6 which may be the same or different radicals, are selected from aliphatic, substituted aliphatic, aromatic, and substituted aromatic, the substituents including for example alkyl, halogen and the like, x and y are numbers from 2 to about 10 and preferably from 2 to about 4, m and n are numbers of from 1 to 3, the sum of m and n being equal to 4, and Z is a sulfonyl (--SO.sub.2) or a carboxyl (--CO.sub.2) radical. Examples of aliphatic radicals include alkyl of from 1 to about 20 carbon atoms such as methane, ethane, propane, butane, isobutane, pentane, neopentane, heptane, decane, tetradecane, eicosane, and the like. Illustrative examples of aromatic radicals include those containing from about 6 to about 20 carbon atoms such as phenyl, naphthyl, anthryl and the like.

Siloxane hole trapping layer for overcoated photoreceptors

A carrier particle for electrostatographic developer mixtures comprising a core having a thin, wear-resistant coating of a polysulfone. The carrier coating is durable and resistant to mechanical degradation. The carrier particle is used in conjunction with finely-divided toner particles to develop electrostatic latent images.

Durable carrier coating compositions comprising polysulfone

A carrier particle for electrostatographic developer mixtures comprising a core having an average diameter between 30 and 1,000 microns surrounded by an outer layer of polymeric vinyl pyridine and an organo silane, silanol or siloxane having from 1 to 3 hydrolyzable groups and an organic group attached directly to a silicon atom containing an unsaturated carbon-to-carbon linkage. The carrier particle is used with small finely-divided toner particles to develop electrostatic latent images.

Growing community of inventors

Webster, NY, United States of America

Lieng-Huang Lee