World Properties, Inc.

Rogers Corporation

William D Smith

Debra A Cox

Richard T Traskos

A document feed component is presented comprising a foamed epichlorohydrin elastomer, a curing agent, and a blowing agent, wherein the document feed component has a dynamic coefficient of friction in the range of about 1.0 to about 3.0, a Shore O hardness in the range of about 2 to about 85, a compression set of less than about 12%, and a resistance to wear of less than about 0.05 g/hr. The elastomer optionally further includes activators, polymerization accelerators, and a filler material. An important feature of the present invention is that the use of a foamed epichlorohydrin elastomer does not require the use of processing aids and migratory additives. Consequently, the document feed component has the advantage of not contaminating paper or other media with which they come into contact, even for extended periods of time, while maintaining other advantageous properties, such as a high dynamic coefficient of friction, low hardness, low % compression set, and excellent resistance to ultraviolet light and ozone. The document feed component may be shaped as a roller, wheel, belt, pad or the like.

Document feeding component and method of manufacture thereof

A document feed component is presented comprising a foamed epichlorohydrin elastomer, a curing agent, and a blowing agent. The elastomer optionally further includes activators, polymerization accelerators, and a filler material. An important feature of the present invention is that the use of a foamed epichlorohydrin elastomer in accordance with the present invention does not require the use of processing aids and migratory additives. Consequently, the document feed component of this invention has the advantage of not contaminating paper or other media with which they come into contact, even for extended periods of time, while maintaining other advantageous properties, such as a high coefficient of friction, low hardness, low compression set, and excellent resistance to ultraviolet light and ozone. The document feed component of the present invention may be shaped as a roller, wheel, belt, pad or the like.

Methods of fabricating multilayer circuits are presented. In accordance with the present invention, a plurality of circuit layers are stacked, one on top of the other. At least one of the circuit layers comprise a substrate composed of a polymeric material capable of undergoing bonding such as a fluoropolymeric based substrate having vias therethrough and a circuit comprised of a layer of suitable conductive material. A fusible conductive bonding material (e.g., solder) or a noble metal is applied wherever electrical connections are desired. At least one other of the circuit layers comprises a polyimide circuit (or other high temperature non-fusing polymer circuit, with or without filler or fabric reinforcement) having vias and circuits comprised of a layer of suitable conductive material with a fusible conductive bonding material (e.g., solder) or a noble metal applied wherever electrical connections are desired. Once stacked the circuits are subjected to lamination under heat and pressure to adhere each polymeric substrate to an adjacent polyimide substrate and to diffuse the noble metal or fuse the solder layers together to form an integral multilayer circuit having solid conductive interconnects.

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Abington, CT, United States of America

William D Smith