Abstract: A copolymer composition for treating paper and paper products to impart water, oil or grease repellency comprising monomers copolymerized in the following percentages by weight:(a) from about 60% to about 90% of at least one monomer of formula I:R.sub.f -Q-A-C(O)-C(R).dbd.CH.sub.2 IwhereinR.sub.f is a C.sub.2-20 straight or branched-chain perfluoroalkyl group,R is H or CH.sub.3,A is O, S, or N(R'), wherein R' is H or a C.sub.1-14 alkyl,Q is C.sub.1-15, alkylene, C.sub.3-15 hydroxyalkylene, --(C.sub.n H.sub.2n)(OC.sub.q H.sub.2q).sub.m --, --SO.sub.2 --NR'(C.sub.n H.sub.2n)--, or --CONR'(C.sub.n H.sub.2n)--, wherein R' is H or C.sub.1-4 alkyl, n is 1 to 15, q is 2 to 4, and m is 1 to 15;(b) from about 10% to about 40% of at least one monomer of formula II:(R.sub.1).sub.2 N--CH.sub.2 CH.sub.2 --O--C(O)--C(R.sub.2).dbd.CH.sub.2 IIwherein R.sub.1 is C.sub.1-3 alkyl, R.sub.2 is H or a C.sub.

Abstract: Control of the surface silanol density in silica fillers used in formulating heat curable rubbers enables control of the percent sealing force retention of the composite. Functionalizing the chemical agents used to effect such control adds additional means of controlling the physical properties of the resulting rubbers, especially silicone rubbers.

Abstract: A pyrolysis gasifier includes a first auger (26) which moves carbon from a carbon collection tank (24) through an air lock valve (30) to a carbon holding tank (28). The gasifier includes an inner cylindrical sleeve (80) which is configured such that there is a small air gap between it and an interior wall of the gasifier (16). The air lock valve (30) includes an inlet member (96) which connects the housing to a connecting tube from the first auger (26). A plate (100) within the housing is mounted such that in a closed position, the plate is sealingly positioned against a lower edge of the inlet member (96), while in an open position, the plate is away from the inlet member, permitting carbon to move into the carbon holding tank. A fuel spreader apparatus 53 is positioned at the top portion of the gasifier. It includes a stirring rod (44) and two opposed fuel paddle assemblies (67, 69) at the lower end thereof to spread the fuel over the cross-sectional area of the gasifier.

Abstract: A fuser member useful for heat-fixing an electrographic toner to a substrate. The fuser member has a core and a layer overlying the core. That layer includes a cured fluorocarbon random copolymer having subunits with the general structures: ##STR1## where x is from 30 to 90 mole percent, y is from 10 to 70 mole percent, and z is from 0 to 34 mole percent. The layer incorporates particulate filler. The filler includes aluminum oxide and a material selected from the group consisting of alkali metal oxides, alkali metal hydroxides, and combinations thereof. The filler has a total concentration in the layer of from about 25 to 50 percent of the total volume of the layer. The aluminum oxide has a concentration of from 20 to 40 percent of the total volume of the layer.

Abstract: A fuser member having a core and a layer overlying the core. The layer includes: an addition crosslinked polyorganosiloxane elastomer, and zinc oxide particles dispersed therein in a concentration of from 5 to 40 percent of the total volume of the layer.

Abstract: A transceiver circuit for use in a high speed data transmission network is disclosed that provides for simultaneous bidirectional transmission of data over coaxial or twisted pair media for replacing fiber optic cables. A transmitter circuit provides and output data signal to a bridge network. The bridge network develops a cancelling signal and a combined signal. A receiver section includes a high speed subtracting circuit that determines the difference between the cancelling signal and the combined signal to effectively cancel data supplied by the transmitter section.

Abstract: A fuser member useful for heat-fixing an electrographic toner to a substrate, a composition of matter and a preparation method. The fuser member has a core and a base cushion layer overlying the core. The base cushion layer includes a crosslinked poly(dimethylsiloxane-fluoroalkylsiloxane) elastomer that has tin oxide particles dispersed therein in a concentration of from 20 to 40 percent of the total volume of the base cushion layer.

Abstract: An imaging element comprising a light-sensitive imaging layer and a polyester film support having coated thereon greater than 0.17 gm/m.sup.2 of a layer of a self-crosslinking polyurethane derived from an isocyanate terminated prepolymer extended with an aliphatic polyamine and end-capped with N-methylol hydrazide groups, the prepolymer being derived from (a) a diisocyanate, and (b) a polyester polyol and having pendant water dispersing, carboxylic salt groups on the polymer chain.

Abstract: A recording element having at least one layer comprising a crosslinked polymer having polymeric backbone moieties and crosslinking moieties, the polymeric backbone moieties containing tertiary nitrogen atoms, the crosslinking moieties connecting polymeric backbone moieties at the teritary nitrogen atoms by conversion of the tertiary nitrogen atoms to quaternary amine, the crosslinking moiety having the structure ##STR1## where R' is independently alkyl or aryl and m is an integer of from 1 to 10.

Abstract: The invention provides a fuser roll useful for heat-fixing an electrographic toner to a substrate, wherein the roll comprises a core having thereon a base cushion layer comprising a condensation-crosslinked poly(dimethylsiloxane) elastomer, characterized in that the base cushion layer has tin oxide particles dispersed therein in a concentration of from 20 to 40 percent of the total volume of the base cushion layer.The base cushion layer of such a fuser roll has been unexpectedly found to exhibit only minimal weight loss, creep, and changes in hardness, over time, when subjected to conditions of elevated temperature and cyclic stress.

Abstract: A fuser member having a core and a layer overlying the core. The layer includes: an addition crosslinked polyorganosiloxane elastomer, and tin oxide particles dispersed therein in a concentration of from 20 to 40 percent of the total volume of the layer.

Abstract: A fuser member having a core and a layer overlying said core. The layer comprises a crosslinked polydiphenylsiloxane-poly(dimethylsiloxane) elastomer having tin oxide particles dispersed therein in a concentration of from 20 to 40 percent of the total volume of the layer.

Abstract: A fuser member comprising a core and a layer overlying said core. The layer comprises a crosslinked polydiphenylsiloxane-poly(dimethylsiloxane) elastomer having zinc oxide particles dispersed therein in a concentration of from 20 to 40 percent of the total volume of the layer.

Abstract: A fuser member useful for heat-fixing an electrographic toner to a substrate, a composition of matter and a preparation method. The fuser member has a core and a base cushion layer overlying the core. The base cushion layer includes a crosslinked poly(dimethylsiloxane-fluoroalkylsiloxane) elastomer that has tin oxide particles dispersed therein in a concentration of from 20 to 40 percent of the total volume of the base cushion layer.

Abstract: A fuser member useful for heat-fixing an electrographic toner to a substrate. The fuser member has a core and a layer overlying the core. That layer includes a cured fluorocarbon random copolymer having subunits with the general structures:--(CH.sub.2 CF.sub.2).sub.x --, --(CF.sub.2 CF.sub.2).sub.z --,and ##STR1## where x is from 30 to 90 mole percent, y is from 10 to 70 mole percent, and z is from 0 to 34 mole percent. The layer incorporates particulate filler. The filler includes tin oxide and a material selected from the group consisting of alkali metal oxides, alkali metal hydroxides, and combinations thereof. The filler has a total concentration in the layer of from about 25 to 50 percent of the total volume of the layer. The tin oxide has a concentration of from 20 to 40 percent of the total volume of the layer.

Abstract: A recording element having at least one layer comprising a crosslinked polymer having polymeric backbone moieties and crosslinking moieties, the polymeric backbone moieties containing tertiary nitrogen atoms, the crosslinking moieties connecting polymeric backbone moieties at the teritary nitrogen atoms by conversion of the tertiary nitrogen atoms to quaternary amine, the crosslinking moiety having the structure ##STR1## where R' is independently alkyl or aryl and m is an integer of from 1 to 10.

Abstract: The invention provides a fuser roll useful for heat-fixing an electrographic toner to a substrate, wherein the roll comprises a core having thereon a base cushion layer comprising a condensation-crosslinked poly(dimethylsiloxane) elastomer, characterized in that the base cushion layer has nickel oxide particles dispersed therein in a concentration of from 20 to 40 percent of the total volume of the base cushion layer.The base cushion layer of such a fuser roll has been unexpectedly found to exhibit only minimal weight loss, creep, and changes in hardness, over time, when subjected to conditions of elevated temperature and cyclic stress.

Abstract: The invention provides a fuser roll useful for heat-fixing an electrographic toner to a substrate, wherein the roll comprises a core having thereon a base cushion layer comprising a condensation-crosslinked poly(dimethylsiloxane) elastomer and having at least one other layer thereover, characterized in that the base cushion layer has zinc oxide particles dispersed therein in a concentration of from 8 to 40 percent of the total volume of the base cushion layer. The base cushion layer of such a fuser roll has been unexpectedly found to exhibit only minimal weight loss, creep, and changes in hardness, over time, when subjected to conditions of elevated temperature and cyclic stress.

Abstract: The invention provides a fuser roll useful for heat-fixing an electrographic toner to a substrate, wherein the roll comprises a core having thereon a base cushion layer comprising a condensation-crosslinked poly(dimethylsiloxane) elastomer, characterized in that the base cushion layer has chromium oxide particles dispersed therein in a concentration of from 10 to 40 percent of the total volume of the base cushion layer.The base cushion layer of such a fuser roll has been unexpectedly found to exhibit only minimal weight loss, creep, and changes in hardness, over time, when subjected to conditions of elevated temperature and cyclic stress.

Abstract: A fuser roll useful for heat-fixing an electrographic toner to a substrate, wherein the roll comprises a core having thereon a base cushion layer comprising a condensation-crosslinked poly(dimethylsiloxane) elastomer, characterized in that the base cushion layer has copper oxide particles dispersed therein in a concentration of from 25 to 40 percent of the total volume of the base cushion layer.The base cushion layer of such a fuser roll has been unexpectedly found to exhibit only minimal weight loss, creep, and changes in hardness, over time, when subjected to conditions of elevated temperature and cyclic stress.