Abstract: This invention is directed to a polymer-clay nanocomposite, products produced from the nanocomposite, and a process for preparing a polymer-clay nanocomposite. The polymer-clay nanocomposite comprises (a) a matrix polymer, (b) an amorphous oligomer, and (c) a layered clay material.

Abstract: This invention relates to a polyester composition comprising a blend of:(A) 99.5 to 75 weight % of a copolyester having an inherent viscosity of 0.1 to 1.2 dL/g and having a melting point in excess of 250.degree. C., comprising:(a) one or more dicarboxylic acids, and(b) a glycol component comprising at least 80 mole % 1,4-cyclohexanedimethanol; and(B) 0.5 to 25 weight % of one or more polyalkylene ethers,wherein the weight percentages of all components in said blend total 100 weight %.

Abstract: Cyclic imides are prepared by reacting carbon monoxide with an ortho dihalide aromatic compound or a cis-1,2-vinyl dihalide and an amine in the presence of palladium catalyst and a base. The process is preferably conducted in the presence of a dipolar aprotic solvent as a liquid reaction medium.Acyclic imides are prepared by reacting CO with an activated halide and an amide (primary or secondary) in the presence of a Pd catalyst and a base.

Abstract: Living polymers endcapped with a silicon containing group can be prepared by reacting a living, anionic polymer with an endcapping agent such as p-(chloromethylphenyl)trimethoxysilane. Such materials possess narrow molecular weight distributions, predictable molecular weights, and high functionality. The functionality is controlled by employing either a monofunctional (f=1) or difunctional (f=2) initiator. The endcapped, unifunctional products of this invention can serve as stable precursors for the preparation of soluble, branched polymers, and the difunctional products of this invention serve as efficient, water curable coatings.

Abstract: Radiation-sensitive interpolymers comprising 10-90 mole % of a polymerized maleimide monomer are useful as resists having high sensitivity to E-beams or X-rays.

Abstract: There is disclosed a resist comprising a radiation-sensitive sensitizer that produces, with a binder, imagewise differential solubility when imagewise exposed.

Abstract: There is disclosed a process for the direct iodination of polyarylidene compounds to provide highly pure para-substituted diiodo derivatives. The polyarylidene compound is reacted with iodine in the presence of an oxidant, unreactive with the aromatic nucleus, in a reaction medium containing a solvent for the polyarylidene compound, a catalyst and water. The reaction medium is recovered for reuse in subsequent reactions by the removal of spent oxidant which, in the preferred embodiment, is based upon the temperature dependent differences in solubility between the diiodo derivative and the spent oxidant.

Abstract: Disclosed are electron acceptor monomers of the formula: ##STR1## wherein R is ##STR2## R' is hydrogen or methyl; X and Y are independently selected from the group consisting of --NO.sub.2, halogen, cyano and --CF.sub.3 ;Z is oxygen or dicyanomethylene; anda and b can range from 0 to 3; with the proviso that at least one of R is ##STR3## and polymers prepared therefrom. These monomers and polymers are suitable for use in electrophotographic devices and methods.

Abstract: Disclosed are monomers of the formula: ##STR1## wherein R is ##STR2## R' is hydrogen or methyl; R" is alkyl of 1-10 carbon atoms;X and Y are independently selected from the group consisting of NO.sub.2, halogen, cyano and --CF.sub.3 ;Z is oxygen or dicyanomethylene;A and a' can range from 0-3; andN is 1-10.These monomers can be readily polymerized to polymers suitable for use in electophotographic imaging members and methods.

Abstract: Disclosed are electron acceptor monomers of the formula: ##STR1## wherein R is ##STR2## R' is hydrogen or methyl; X and Y are independently selected from the group consisting of --NO.sub.2, halogen, cyano and --CF.sub.3 ;Z is oxygen or dicyanomethylene; and a and b can range from 0 to 3;With the proviso that at least one of R is ##STR3## AND POLYMERS PREPARED THEREFROM. These monomers and polymers are suitable for use in electrophotographic devices and methods.

Abstract: Disclosed are electron acceptor monomers of the formula: ##STR1## wherein R is ##STR2## or --H; R' is hydrogen or methyl;X and Y are independently selected from the group consisting of --NO.sub.2, halogen, cyano and --CF.sub.3 ;Z is oxygen or dicyanomethylene; andA and b can range from 0 to 3; with the proviso that at least one of R is ##STR3## and polymers prepared therefrom. These monomers and polymers are suitable for use in electrophotographic devices and methods.

Abstract: Disclosed are monomers of the formula: ##STR1## WHEREIN R is ##STR2## R' is hydrogen or methyl; R" is alkyl of 1-10 carbon atoms;X and Y are independently selected from the group consisting of NO.sub.2, halogen, cyano and --CF.sub.3 ;Z is oxygen or dicyanomethylene;a and a' can range from 0-3; andn is 1-10.These monomers can be readily polymerized to polymers suitable for use in electrophotographic imaging members and methods.

Abstract: Disclosed are monomers of the formula: ##STR1## WHEREIN R is ##STR2## R' is hydrogen or methyl;R" is alkyl of 1-10 carbon atoms;X and Y are independently selected from the group consisting of NO.sub.2, halogen, cyano and --CF.sub.3 ;Z is oxygen or dicyanomethylene;A and a' can range from 0-3; andN is 1-10.These monomers can be readily polymerized to polymers suitable for use in electrophotographic imaging members and methods.

Abstract: Process for preparation of monomers of the formula ##STR1## WHEREIN R is hydrogen or methyl; X and Y are independently selected from the group consisting of NO.sub.2, halogen, --CN and --CF.sub.3 ; andm and n can range from 0 to 3.Typical monomers embraced by the above formula can be prepared by Lewis Acid catalyzed esterification of methacrylic acid with a diazo derivative of an electron acceptor such as 9-diazo-2,4,7-trinitrofluorenone. These monomers can be used with other binders or polymerized by standard, free-radical techniques to polymers capable of forming self-supporting films which are useful in electrophotographic imaging members and methods.

Abstract: Disclosed are monomers of the formula: ##STR1## R' is hydrogen or methyl; R" is alkyl of 1-10 carbon atoms;X and Y are independently selected from the group consisting of NO.sub.2, halogen, cyano and --CF.sub.3 ;Z is oxygen or dicyanomethylene;a and a' can range from 0-3; andn is 1-10.These monomers can be readily polymerized to polymers suitable for use in electrophotographic imaging members and methods.

Abstract: Process for preparation of monomers of the formula ##STR1## wherein R is hydrogen or methyl;X and Y are independently selected from the group consisting of NO.sub.2, halogen, --CN and --CF.sub.3 ; andm and n can range from 0 to 3.Typical monomers embraced by the above formula can be prepared by Lewis Acid catalyzed esterification of methacrylic acid with a diazo derivative of an electron acceptor such as 9-diazo-2,4,7-trinitrofluorenone. These monomers can be used with other binders or polymerized by standard, free-radical techniques to polymers capable of forming self-supporting films which are useful in electrophotographic imaging members and methods.

Abstract: Method for achieving free radical initiated copolymerization of an addition monomer having pendant therefrom a strong donor group with an addition monomer having pendant therefrom a strong acceptor group. Copolymers prepared according to this method can be represented by the following formula: ##STR1## WHEREIN R is hydrogen or methyl;R' is hydrogen or methyl;R" is hydrogen or methyl;R'" is alkyl of 1-10 carbon atoms;R'.sup.v is selected from the group consisting of --NO.sub.2, halogen, --CN and --CF.sub.3 ;X and Y are independently selected from the group consisting of hydrogen, chlorine, bromine, alkyl of 1-4 carbon atoms and phenyl;Z is oxygen or dicyanomethylene;a and b can range from 0-4; andn and m can range from about 5 to about 95 percent.The polymeric compositions prepared according to this method are suitable for use in electrophotography either alone as the primary photoresponsive entity or in combination with other photoconductive materials.

Abstract: Composite photoconductive insulating films comprising a thin layer of photoconductive materials having substantial spectral response in the visible region of the electromagnetic spectrum and a substantially colorless insulating layer contiguous therewith comprising a minor portion of electronically inert binder in a major portion of an electronically active oligomer of the formula: ##STR1## R' is hydrogen or methyl; R" is alkyl of 1-10 carbon atoms;X and Y are independently selected from the group consisting of NO.sub.2, halogen, cyano and --CF.sub.3 ;Z is oxygen or dicyanomethylene;a and a' can range from 0-3;m is 1-10; andn is in the range of from about 3 to about 25.

Abstract: Disclosed are monomers of the formula: ##STR1## WHEREIN R is ##STR2## R' is hydrogen or methyl; R" is alkyl of 1-10 carbon atoms;X and Y are independently selected from the group consisting of NO.sub.2, halogen, cyano and --CF.sub.3 ;Z is oxygen or dicyanomethylene;a and a' can range from 0-3; andn is 1-10.These monomers can be readily polymerized to polymers suitable for use in electrophotographic imaging members and methods.

Abstract: Disclosed is a method for enhancing the resistance to crystallization of solid solutions containing electron acceptor molecules. According to this method, electron acceptor molecules are chemically modified whereby the resulting compound is capable of undergoing polymerization. This modified material is thereafter dissolved in a suitable polymeric resin and subsequently exposed to a source of activating energy thereupon causing such modified material to polymerize within the polymeric resin. The resulting composition exhibits enhanced resistance to crystallization and thus is suitable for use in electrophotographic devices and methods.