Abstract: Disclosed are developer compositions for use in an electrographic development process and methods for using such compositions. The developer includes a hard magnetic material as a carrier, and also a toner material which comprises a polymeric resin, colorant, and a hydrophobic silica or hydrophilic silica, in an amount sufficient to reduce the dusting of toner particles off of the carrier particles during use, as well as to maintain the charge to mass ratio of the toner during use so as to increase the useful life of the developer composition. Also disclosed are methods of using such developer compositions.

Abstract: A process for making an electrophotographic toner comprising: (a) uniformly mixing a metal oxide selected from titanium dioxide and silicon dioxide with toner particles to form a mixture having 5 to 15 weight percent metal oxide; (b) mixing the product of step (a) with additional toner particles at a mixing intensity ≧500,000 (cm/minute) minute; wherein in the mixed product of (b) the metal oxide is 0.1 to 5.0 weight percent of the mixed product; and the toner particles have on their surfaces a metal oxide concentration in a ratio of 1.0-3.0:1.0 with respect to titanium dioxide on the surface of the toner particles:total titanium dioxide in the mixed product; and a ratio of 10.0-25.0:1.0 with respect to silicon dioxide on the surface of the toner particles:total silicon dioxide in the mixed product.

Abstract: An electrophotographic toner composition comprising toner particles admixed with metal oxide, wherein the metal oxide is selected from titanium dioxide and silicon dioxide; the metal oxide is 0.1 to 5.0 weight percent of the toner composition; and the ratio of titanium dioxide on the surface of the toner particles:total titanium dioxide in the toner composition is in the range of 1.0-3.0:1.0 and the ratio of silicon dioxide on the surface of the toner particles:total silicon dioxide in the toner composition is in the range of 10.0-25.0:1.0.

Abstract: The invention, in its broader aspects provides an electrophotographic toner having polymeric binder and 2-(1,2-benzisothiazol-3(2H)-ylidene 1,1-dioxide)acetamides as charge control agent. wherein n is 1 or 2; R and R1 are defined in the specification. The compounds are useful as charge-control agents in electrostatographic toners and developers.

Abstract: An electrophotographic toner is disclosed comprising a polymeric binder and an N-[2-(1,2-benzisothiazol-3(2H)-ylidene 1,1 -dioxide)-2-cyanoacetyl]benzenesulfonamide as charge control agent having the structure: ##STR1## wherein n and X are defined in the specification. The compounds are useful as charge control agents in electrostatographic toners and developers.

Abstract: A thermal barrier coating system and a method for forming the coating system which yields a thermal barrier coating having good adhesion to a bond coat overlying a metal superalloy substrate. The adhesion of the bond coat and the thermal barrier coating is enhanced by forming a mature .alpha.-alumina (Al.sub.2 O.sub.3) scale at the bond coat-TBC interface. The desired mature .alpha.-alumina scale can be obtained by utilizing one or more of the following steps: preoxidation of the bond coat at certain minimum temperatures and durations; inoculation of the surface of the bond coat; surface doping or alloying of the bond coat surface; and the addition of noble metals to the bond coat. Each of these steps promotes the formation of .alpha.-alumina and avoids the formation of the .gamma., .delta. and .theta.-alumina phases which undergo phase transformations at elevated temperatures, with the result that a more spallation-resistant thermal barrier coating system is obtained.

Abstract: The invention, in its broader aspects provides an electrophotographic toner having polymeric binder and 2-(1,2-benzisothiazol-3(2H)-ylidene 1,1-dioxide)acetamides as charge control agent. ##STR1## wherein n is 1 or 3; R and R.sup.1 are defined in the specification. The compounds are useful as charge-control agents in electrostatographic toners and developers.

Abstract: Electrostatographic toners and developers are disclosed. They contain poly [(2-cyanoacetamido)phenyl acrylate] charge control agents.

Abstract: (2-(Sulfonamidomethylene)-2-cyanoacetamido)phenyl acrylate compounds and polymers are disclosed. The polymers are useful charge-control agents in electrostatographic toners and developers.

Abstract: A 2-(1,2-benzisothiazol-3(2H)-ylidene 1,1-dioxide)-2-cyanoacetamides having the following general structure: whereinR and R.sup.1 are defined in the specification. The compounds are useful as charge-control agents in electrostatographic toners and developers.

Abstract: An electrostatographic toner comprising a poly?N-(4-vinylbenzoyl)sulfonamide! charge-control agent is disclosed. The agent having recurring units according to the general structure: ##STR1## represents any copolymerizable comonomer and R.sup.1 represents C.sub.1 to C.sub.18 linear, branched or cyclic alkyl or C.sub.6 to C.sub.10 aryl; andm and n are each weight percent and the total of m and n is 100 weight percent.

Abstract: Novel (1,2-benzisothiazol-3(2H)-ylidene 1,1-dioxide)acetate-terminated polymer charge-control agents are disclosed. They have the general structure (I): ##STR1## n can be as high as the number of hydroxyl groups in the polymer from which structure I is derived.

Abstract: A (1,2-benzisothiazol-3(2H)-ylidene 1,1 -dioxide) cyanomethylene charge control-agent is disclosed. The agent has the structure: ##STR1## R is defined in the specification. They are useful in electrostatographic toners and developers.

Abstract: A N-(1,2-benzisothiazol-3(2H)-ylideneacetyl 1,1-dioxide)amide having the general structure: ##STR1## wherein R is defined in the specification. The compounds are negative charge-control agents for use in electrostaticographic toners and developers.

Abstract: An electrostatographic toner comprising a poly?N-(acyl)-4-vinylbenzenesulfonamide! charge-control agent is disclosed.

Abstract: A method for manufacturing an article for use in a gas tubine engine is disclosed, which comprises applying a metallic bond coating on a superalloy substrate; surface doping a surface of the bond coating with at least one element selected from the group consisting of Fe, Cr and Y by plating, ion implantation, MOCVD and sputttering; and then applying an insulative ceramic coating on the bond coating.

Abstract: N-(1,2-Benzisothiazol-3(2H)-ylideneacetyl 1,1-dioxide)benzenesulfonamides are disclosed. They have the general structure ##STR1## X and n are defined in the specification.

Abstract: Bis?(1,2-benzisothiazol-3(2H)-ylidene 1,1-dioxide)acetates! are disclosed. They have the general structure (I): ##STR1## R is defined in the specification.

Abstract: An electrostatographic toner comprising a poly?(2-(sulfonamidomethylene)-2-cyanoacetamido)phenyl acrylate! charge-control agent is disclosed.

Abstract: Electrostatographic toners and developers containing (1,2-benzisothiazol-3-(2H)-ylidene 1,1-dioxide)acetate-terminated polymer charge-control agents are disclosed. The agents have the structure (I): ##STR1## wherein n can be as high as the number of hydroxyl groups in the polymer from which structure I is derived.