Standard Oil Company (indiana)

The Standard Oil Company

Amoco Corporation

Ellis K Fields

Tayseer S Nimry

Mark L Winzenburg

Edward E Paschke

Allen I Feinstein

Steven A Cerefice

Steven J Behrend

Imre Puskas

Carl A Udovich

David A Young

Ronald Leslie Anderson

Benjamin L Shneider

William C Clarke

David A Palmer

John A Donohue

Wilford J Zimmerschied

Kerford A Marchant, Jr

Alfred Steitz, Jr, Deceased

Shantaram G Kane

David A De Marco

Harold Hart

A process is disclosed for preparation of anhydrides containing additional carboxylic acid moieties and dianhydrides of disubstituted maleic anhydride compounds wherein the acid anhydrides and dianhydrides retain their alkene character. The resulting alkene compounds are useful as precursors for polyesters, thermally stable polyamide-imides and polyimides which are also disclosed, as well as a process for their preparation.

Process of preparing polyamide-imide and polyimide polymers from acid

Compounds are disclosed which are anhydrides containing additional carboxylic acid moieties and dianhydrides of disubstituted maleic anhydride compounds wherein the acid anhydrides and dianhydrides retain their alkene character. These compounds are useful as precursors for polyesters, thermally stable polyamide-imides and polyimides.

Acid anhydrides and dianhydrides of disubstituted maleic anhydrides

Di-substituted maleic anhydride compounds are disclosed of the structural formula ##STR1## wherein R and R.sup.1 are selected from the group consisting of aliphatic and phenyl moieties, and R.sup.2 is a divalent aromatic moiety. Polyamide-imide polymers, polyimide polymers and vinyl copolymers derived therefrom are also disclosed.

Disubstituted maleic anhydride compounds

A process for hydration and condensation of acetylene in a crude acetylene stream containing water in the presence of a zirconia-alumina catalyst containing water to prepare aliphatic, aromatic and oxygenated compounds suitable for use as high octane liquid water fuels and as octane improvers for motor fuels is disclosed.

Process for preparation of fuel additives from acetylene

Quaternary ammonium compounds containing an anhydride groups are prepared by halogenating dimethylmaleic anhydride and reacting the halogenated product with a tertiary amine. The products are useful as surfactants, biocides and as cosurfactants in enhanced oil recovery.

Quaternary ammonium compounds containing an anhydride group

Carbamates of beta- hydroxyethylsulfoxides which are useful as cosurfactants in enhanced oil recovery, surfactants and biocides, and as hydraulic fluids when of sufficiently low molecular weight.

Carbamates of beta-hydroxyethylsulfoxides

Phosphites and phosphates of 3-sulfoxy-1,2-propylene glycols are taught as new compositions of matter. These compounds are useful as co-surfactants in enhanced oil recovery.

Phosphites and phosphates of 3-sulfoxy-1,2-propylene glycols

Cyclic dianhydrides and polyimides are prepared from maleic anhydride compounds and diolefins. The diolefins are alpha- , omega-linear diolefins of up to 100 carbon atoms or cyclic diolefins of up to 40 carbon atoms. The polyimides and copolyimides prepared from these cyclic dianhydrides are useful in films, fibers and coatings.

Polyimides prepared from cyclic dianhydrides

3-Sulfoxy-1,2-propylene glycols-1-esters of tricyclo (4.2.2.0.sup.2,5) dec-9-ene-3,4,7,8-tetracarboxylic acid are prepared. These compounds are useful as surfactants, biocides and as cosurfactants in enhanced oil recovery.

3-Sulfoxy-1,2-propylene glycols-1-esters of tricyclo (4.2.2.0.sup.2,5)

Quaternary ammonium compounds containing anhydride groups are prepared by halogenating dimethylmaleic anhydride and reacting the halogenated product with a tertiary amine. The products are useful as surfactants, biocides and as cosurfactants in enhanced oil recovery.

Halomethyl, methyl maleic anhydride and synthesis of bromomethyl, methyl

This invention relates to carbamates of beta-hydroxyethylsulfoxides which are useful as cosurfactants in enhanced oil recovery, surfactants and biocides, and as hydraulic fluids when of sufficiently low molecular weight.

Novel polyimides and molding compositions are prepared from novel tricyclo[4.2.1.0.sup.2,5 ] nonane-3,4-dimethyl-3,4,7,8-tetracarboxylic acid dianhydride. The dianhydride is useful for the manufacture of polyimides which are useful as engineering plastics.

Nonaromatic dianhydride and polyimides from tricyclo[4.2.1.0.sup.2,5 ]

Novel polyimides, copolyimides and molding compositions are prepared from novel dianhydrides such as bicyclo[4.2.0]octane-2,5 diphenyl-7,8-dimethyl,3,4,7,8-tetracarboxylic dianhydride and bicyclo[4.2.0] octane-7,8-dimethyl-3,4,7,8-tetracarboxylic acid dianhydride. The novel polyimides are useful as engineering plastics. The novel dianhydrides are useful for the preparation of the polyimides.

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River Forest, IL, United States of America

Ellis K Fields