Abstract: Silver/transition metal catalysts are made by calcining the polysilver salt of a polycarboxylic acid and at least one transition metal salt of an organic polycarboxylic acid at temperatures from 200-500.degree. C., and oxidizing the said calcined salts with oxygen at temperatures from 20-500.degree. C.

Abstract: Novel dianhydrides derived from trimellitic anhydride and adamantane diacetates are polymerized with a diamine to produce the corresponding polyamide, which is subsequently converted to the polyesterimide by heat treatment at temperatures above 500.degree. F.

Abstract: High surface area silver olefin oxide catalysts with orderly distribution of pore size are prepared by pyrolysis of silver salts of di- and polycarboxylic acids or mixtures thereof to carbon-like polymers containing silver, followed by combustion of the carbonaceous material. The resulting unsupported or supported silver catalysts are useful for oxidations, cyclizations, isomerizations, and cracking. The carbon-like polymers containing silver, before combustion of the carbonaceous material, find utility as bactericides and catalysts. Extraction of the silver yields high surface area carbon adsorbents of predetermined structure.

Abstract: The present disclosure relates to a new composition of matter dibenzofuran-2,3,6,7,-tetracarboxylic acid dianhydride and polymers derived therefrom including polyamic acid or polyimide polymers formed from the reaction of the above dianhydride and a diamine. The claimed dianhydride finds use as an excellent cross-linking moiety. Condensation polymers derived from the dianhydride and diamines are useful in the production of films and fibers with good thermal stability.

Abstract: This invention relates to a new catalyst and to a novel oxidation process. In this novel process, aromatic compounds with an alkyl group having at least one alpha hydrogen, including aromatic compounds wherein the alkyl groups are unsubstituted and substituted, are contacted in the liquid phase at reaction conditions with an oxygen-containing gas in the presence of a novel catalyst which is prepared by milling an anhydrous transition metal halide with silver nitrite, the transition metal being selected from the Groups IVb to VIII and Ib and IIb of the Periodic Table, wherein the mole ratios of metal halide to silver nitrite are in the ratio of 1:1 to 1:5.

Abstract: Beta-hydroxyalkylsulfoxides are prepared by reacting an olefin and a thiol with oxygen in the presence of a dye sensitizer using visible light as an energy source at a temperature from -10.degree. to 70.degree. C.

Abstract: New chemical compounds useful as intermediates are 5-(1-methyl-3,4,5,6,7,7-hexahalo-norborn-4-ene-1)-isophthalic acid and 4-(1-methyl 3,4,5,6,7,7-hexahalo-norborn-4-ene-1)-orthophthalic acid, formed by oxidation of the primary or secondary alkyl groups containing from one to ten carbon atoms on the benzene ring of the Diels-Alder adduct of equimolecular amounts of hexahalocyclopentadiene and either 3,5-dialkyl-.alpha.-methyl-styrene and 3,4-dialkyl-.alpha.-methylstyrene. The acyl derivatives of these intermediates do not burn or support combustion and are also useful as extreme-pressure additives in lubricating oils. The following acyl derivatives of 5-(1-methyl-3,4,5,6,7,7-hexachloro-norborn-4-ene-1)-isophthalic acid have been prepared: the dichloride, diamide, dianilide, diethylester, polyphenylester, poly(chlorophenyl) ester, poly-ethylene glycol ester, diphenylthioester, di-methallylester, and unsaturated polyester.

Abstract: A decarboxylation process for substituting iodine atoms for silver carboxylate radicals which comprises reacting the silver salts of carboxylic acids with iodine under decarboxylation conditions.

Abstract: This invention relates to dicyclohexadiene tetraacyl compounds. More particularly, this invention relates to dicyclohexadiene dianhydrides, dicyclohexadiene tetracarboxylic acid esters and dicyclohexadiene tetracarboxylic acids.

Abstract: 7,7-dihalobicyclo [4.1.0] hept-4-ene-2,3-dicarboxylic acid compounds and 5,5,8,8-tetrahalotricyclo [5.1.0.0.sup.4,6 ] octane-2,3-dicarboxylic acid compounds.

Abstract: Silver/transition metal catalysts are made by calcining the polysilver salt of a polycarboxylic acid and at least one transition metal salt of an organic polycarboxylic acid at temperatures from 200.degree.-500.degree. C., and oxidizing the said calcined salts with oxygen at temperatures from 20.degree.-500.degree. C.

Abstract: The trans- acidolysis reaction between carboxylic acids and lower alkanoic acid esters of organic hydroxy or mercapto compounds is catalyzed by Group Ia and IIa metal salts of alkanoic acids such as sodium acetate.

Abstract: Process for coupling alkyl esters of polyalkylbenzoic acid to prepare polyalkylbiphenylpolycarboxylic acid compounds which comprises anodically oxidizing said alkyl esters in a non-nucleophilic media by applying a source of direct current in liquid phase at atmospheric pressure and temperatures from -30.degree. to 80.degree. C. The biphenyl acid compounds are useful in the formation of polyester resins, including alkyds, and fiber-forming polymers.

Abstract: Novel dianhydrides derived from trimellitic anhydride and adamantane diacetates are polymerized with a diamine to produce the corresponding polyamide, which is subsequently converted to the polyesterimide by heat treatment at temperatures above 500.degree.F.

Abstract: A decarboxylation process for substituting cyano radicals for silver carboxylate radicals which comprises reacting the silver salts of carboxylic acids with silver cyanide under decarboxylation conditions of at least 320.degree.C.

Abstract: A process for converting an aromatic methyl ester (methyl benzoate) to a corresponding aromatic aldehyde (benzaldehyde) by subjecting the ester to temperatures of 400.degree. to 500.degree.C and one atmosphere pressure for 3 to 100 seconds in the presence of a solid alumina catalyst.

Abstract: Nitrosobenzene or Azoxybenzene are heated at temperatures above about 400.degree.C. to produce various phenylamines and carbazoles.