Abstract: There is disclosed a process for the preparation of cyclopentene which comprises selectively hydrogenating cyclopentadiene in the liquid phase by contacting cyclopentadiene with hydrogen in the presence of a hydrogenation catalyst comprising a highly dispersed form of nickel in which an alcohol boiling above 99.degree. C. is employed in the reaction mixture.

Abstract: A process for producing cis-1,4 polybutadiene by contacting butadiene with a catalyst consisting of (1) at least one organoaluminum compound, (2) at least one nickel compound selected from the class consisting of nickel salts of carboxylic acids, organic complex compounds of nickel, nickel tetracarbonyl, and (3) at least one hydrogen fluoride complex prepared by complexing hydrogen fluoride with a member of the class consisting of ketones, esters, ethers, alcohols, nitriles and water.

Abstract: There is disclosed a process for the preparation of cyclopentene which comprises selectively hydrogenating cyclopentadiene in the liquid phase by contacting cyclopentadiene with hydrogen in the presence of a hydrogenation catalyst comprising a highly dispersed form of nickel in which a substantial amount of water and certain surfactants are employed in the reaction mixture.

Abstract: An aqueous emulsion of a water insoluble liquid and a water insoluble solid is prepared by first forming a high viscosity emulsion of the liquid in water and then slowly adding the solid to the emulsion with low speed agitation, thereby forming a concentrated co-emulsion which can be diluted to the desired activity.

Abstract: There is disclosed an aqueous medium comprising water to which has been added a water thickening amount of a water thickening polymer which is prepared by polymerizing at least one alkyl acrylate monomer and at least one carboxylic polymerizable monomer selected from the group consisting of acrylic acid and methacrylic acid which are present from 20 to 95 parts by weight per hundred parts of total monomer being polymerized and utilizing, as an ionic emulsifier, an emulsifier selected from the group consisting of disodium or diammonium nonylphenoxy polyethoxy sulfosuccinate having the general formula:CH.sub.3 (CH.sub.2).sub.8 C.sub.6 H.sub.4 O(CH.sub.2 CH.sub.2 O).sub.8-16 COCH.sub.2 CH(COOM)SO.sub.3 Qwherein Q is sodium or ammonium and a sodium or ammonium lauryl polyethoxysulfate having the general formula:CH.sub.2 (CH.sub.2).sub.11 O(CH.sub.2 CH.sub.2 O).sub.8-16 SO.sub.3 Qwherein Q is sodium or ammonium, said polymer in latex form being neutralized to a pH ranging between a pH of 5.5 to 11.5.

Abstract: There is disclosed a method for the polymerization and copolymerization of diolefins selected from the group of monomers consisting of trans-1,3-pentadiene and isoprene employing as a catalyst a mixture of (A) an organometallic compound selected from the group consisting of aluminum trialkyls, magnesium dialkyls and zinc dialkyls, (B) a soluble chromium compound selected from the group consisting of chromium salts of organic acids containing from 2 to 20 carbon atoms, organic complex compounds of chromium containing tridentate ligands and .pi.-bonded organochromium compounds, and (C) a member selected from dialkyl hydrogen phosphites, diaryl hydrogen phosphites and tris(2-chloroethyl)phosphite.

Abstract: In a method for detection and/or assay of hydroperoxides (or, indirectly, of substances, such as cholesterol or glucose, which react to liberate hydroperoxides) using an assay reagent comprising a water-soluble iodide, a redox catalyst and a stabilizer, an improvement is provided wherein when the determination is made in the presence of protein, the redox catalyst concentration in the reagent is 5-500 .mu.M and the stabilizer concentration in the reagent is 5-100 mg/l. A corresponding improvement in the assay reagent is also provided.

Abstract: There is disclosed a cycloolefin metathesis process comprising polymerizing (1) an unsaturated alicyclic compound containing 5 carbons and one double bond in the ring and (2) polycyclic non-conjugated diolefins by the use of a catalyst system comprising (a) tungsten halides and oxyhalides, (b) at least one compound such as alkylaluminum sesquihalides, dialkylaluminum halides, alkylaluminum diahlides or trialkylaluminums, (c) an alcohol, and (d) pentachlorophenol or pentabromophenol.

Abstract: Metallo phthalocyanines which have been rendered water soluble by substituting an alkali metal or alkaline earth metal sulfate or carboxylate salt onto the phthalocyanine structure have been found to be effective catalysts for the oxidation of aromatic compounds having benzylic carbon atoms to form the corresponding hydroperoxides.

Abstract: There is disclosed a process for the preparation of cyclopentene from cyclopentadiene which comprises selectively hydrogenating cyclopentadiene in the liquid phase by continuously contacting cyclopentadiene with hydrogen while passing the mixture of hydrogen and cyclopentadiene through a highly dispersed form of nickel catalyst which nickel has been treated with ammonia.

Abstract: There is disclosed a process for the preparation of cyclopentene which comprises selectively hydrogenating cyclopentadiene in the liquid phase by contacting cyclopentadiene with hydrogen in the presence of a hydrogenation catalyst comprising a highly dispersed form of nickel in which water is employed in the reaction medium.

Abstract: Improved green strength of elastomers made from monomers selected from the class consisting of at least one conjugated diene having from 4 to 10 carbon atoms, olefins having from 2 to 14 carbon atoms along with a diene having from 4 to 6 carbon atoms, and combinations thereof, is achieved by adding an amount of a polydimethylbutadiene compound to form a blend having a glass transition temperature of from about 0.degree. C to about -100.degree. C. The polydimethylbutadiene compound may be merely the homopolymer of dimetylbutadiene, the copolymer, the terpolymer or the tetrapolymer of dimethylbutadiene in various combinations with monomers such as butadiene, isoprene, piperylene, acrylonitrile, vinylidene chloride, vinyl pyridine, methacrylic acid and vinyl substituted aromatic compounds.

Abstract: There is disclosed a process for the preparation of cyclopentene which comprises selectively hydrogenating cyclopentadiene in the liquid phase by contacting cyclopentadiene with hydrogen in the presence of a hydrogenation catalyst comprising a highly dispersed form of nickel in which a polyol selected from the group consisting of 1,2-ethanediol, 1,2-propanediol, 1,3-propanediol, 1,2,3-propanetriol, 1,2-butanediol, 1,4-butanediol, 1,3-butanediol, 1,2,4-butanetriol and 1,2,3-butanetriol is employed in the reaction mixture.

Abstract: There is disclosed a method comprising the oxidative dehydrogenation of at least one hydrocarbon selected from the group consisting of butene-1, butene-2, 2-methyl-1-butene, 2-methyl-2-butene, 3-methyl-1-butene, n-pentene, 2,3-dimethyl-1-butene, 2,3-dimethyl-2-butene, 2-methyl-1-pentene, 2-methyl-2-pentene, 4-methyl-2-pentene, 3-methyl-1-pentene, 3-methyl-2-pentene, 2-ethyl-1-butene, ethyl benzene and isopropyl benzene at oxidative dehydrogenation conditions while in contact with a catalyst consisting essentially of a mixture of zinc and molybdenum in combination with oxygen which is activated with chromium in combination with oxygen, said catalyst being calcined for at least 1 hour at 400.degree. C. to 1100.degree. C. prior to use.

Abstract: There is disclosed an improved dehydrogenation catalysts prepared from mixtures of WO.sub.3 and V.sub.2 O.sub.5 ; mixtures of MoO.sub.3 and V.sub.2 O.sub.5 and mixtures of Cr.sub.2 O.sub.3 or CrO.sub.3 and V.sub.2 O.sub.5 which are heated to temperatures to melt the oxides to form W(VO.sub.4).sub.2, Mo(VO.sub.4).sub.2 and CrVO.sub.4 which are then treated with a reductant to form the active dehydrogenation catalytic species, the methods for the preparation of these catalysts and to the improved dehydrogenation processes which can be effected when dehydrogenatable hydrocarbons are in contact with these catalysts.

Abstract: There is disclosed a method comprising the oxidative dehydrogenation of at least one hydrocarbon selected from the group consisting of butene-1, butene-2, 2-methyl-1-butene, 2-methyl-2-butene, 3-methyl-1-butene, n-pentene, 2,3-dimethyl-1-butene, 2,3-dimethyl-2-butene, 2-methyl-1-pentene, 2-methyl-2-pentene, 4-methyl-2-pentene, 3-methyl-1-pentene, 3-methyl-2-pentene, 2-ethyl-1-butene, ethyl benzene and isopropyl benzene at oxidative dehydrogenation conditions while in contact with a catalyst consisting essentially of a mixture of cobalt and molybdenum in combination with oxygen which is activated with chromium in combination with oxygen, said catalyst being calcined for at least 1 hour at 400.degree. C. to 1100.degree. C. prior to use.

Abstract: There is disclosed a method of preparing a five-membered block polymer, said block polymer exhibiting more superior properties than would be expected from copolymers made from similar blocks.

Abstract: A process for producing cis-1,4 polybutadiene by contacting butadiene with a catalyst consisting of (1) at least one organoaluminum compound, (2) at least one nickel compound selected from the class consisting of nickel salts of carboxylic acids, organic complex compounds of nickel, nickel tetracarbonyl, and (3) at least one hydrogen fluoride complex prepared by complexing hydrogen fluoride with a member of the class consisting of ketones, esters, ethers, alcohols, nitriles and water.

Abstract: This invention relates to a process for agglomerating a finely divided material with a rubber latex to form dustless, free-flowing granules in which rubber latex is sprayed onto a dampened finely divided material while the dampened finely divided material is suspended in a gaseous medium.

Abstract: A process for the non-aqueous dispersion polymerization of a conjugated diolefin monomer, for instance, butadiene or isoprene, in a liquid hydrocarbon dispersion medium, for instance, n-butane or n-pentane with a Ziegler Natta catalyst, for instance, triisobutylaluminum/titanium tetrachloride while said conjugated diolefin is in the presence of a block copolymer dispersion stabilizer. The block copolymer dispersion stabilizer is a copolymer which contains at least two blocks of polymer linked by chemical valences, at least one block (A block) is soluble in liquid organic dispersion medium and at least another block (B block) is insoluble in the dispersion medium and the stabilizer acts to disperse polymers of conjugated diolefins which are formed in the stabilizer's presence. The A block is exemplified by polyisoprene, poly(t-butyl styrene) and poly(vinyl toluene). The B block is exemplified by polystyrene, poly(.alpha.