Abstract: There is disclosed a new process for ring-opening polymerization of cycloolefins by the use of a catalyst comprising (A) tungsten or molybdenum halides, (B) alkyl aluminum halides and (C) an alcohol which may optionally contain a halogen substituent and (D) an alcohol which has a nitrile substituent. Also the catalyst is disclosed as useful in metathesis of olefins.

Abstract: A water-based ink comprising a solution of the ammonium salt of olefin/maleic anhydride or polyolefin/maleic anhydride copolymers in a water/diol solution together with a coloring material to form an ink which becomes irreversibly impervious to water when dry.

Abstract: A method of preparing sulfur vulcanizable unsaturated interpolymers of at least one terminally unsaturated monoolefin selected from the group consisting of 1-butene and .alpha.-olefins containing from five to 12 carbon atoms with at least one nonconjugated diolefin selected from the group of 4- and 5-methyl-1,4-hexadienes in which 5-methyl-1,4-hexadiene is at least 15 mole percent and in which the terminally unsaturated monoolefin comprises from about 98 to about 50 mole percent of the total.

Abstract: A method of polymerizing butadiene and/or butadiene in mixture with other diolefins to form polymers with a high cis-1,4 addition wherein the improvement relates to improved catalysts for producing the high cis-1,4-polybutadiene.

Abstract: A method of polymerization of butadiene to form polymers with a high (greater than 90 percent) content of cis-1,4 configuration wherein a mixed fluoride bearing catalyst system is utilized to control the polymerization rate and the molecular weight.

Abstract: This invention discloses homopolymers and interpolymers of nonconjugated diolefins defined by the formula: ##EQU1## where R.sub.1, R.sub.2 and R.sub.3 may be hydrogen, a lower alkyl group containing up to 4 carbon atoms or an aryl group and R.sub.4 may be a lower alkyl group containing up to 4 carbon atoms or an aryl group. It is also disclosed that these homopolymers and interpolymers can be prepared by solution polymerization employing cationic catalyst systems and also coordination catalyst systems. The polymers are either resinous or rubbery in nature.

Abstract: There is disclosed a process for the preparation of 3-methylpiperidine which comprises a multi-stage hydrogenation of .alpha.-methylene glutaronitrile using as a catalyst a highly dispersed nickel in which the first stage hydrogenation is conducted at temperature ranging from about 20.degree.C to about 50.degree.C at hydrogen pressure of at least 14 kilograms per square centimeter to form .alpha.-methyl glutaronitrile. The second stage hydrogenation is conducted at temperatures ranging from about 80.degree.C to about 175.degree.C at hydrogen pressures of at least 42 kilograms per square centimeter to form 2-methyl-1,5-diaminopentane. At which time the reaction mixture is cooled to a temperature below the boiling point of any of the materials present in the process and all the excess hydrogen vented off. The temperature is then increased to at least about 150.degree.C to allow the 2-methyl-1,5-diaminopentane to cyclize to form 3-methylpiperidine.

Abstract: A method of preparing synthetic rubbers having improved green strength and improved processing characteristics wherein a portion of the monomer is contacted with a catalyst imparting a cis-1,4 configuration and subsequently contacting the remaining portion of the monomer with a catalyst capable of imparting a trans-1,4 configuration.

Abstract: Latex compositions comprising carboxylated styrene-butadiene-vinylidene chloride copolymer latices wherein the latex consists essentially of 15 to 45% styrene, 25 to 50% butadiene, 25 to 40% vinylidene chloride and 0.5 to 10% copolymerizable carboxylic acid and a flame retardant additive exhibit improved flame retardant properties for use in carpet and floor covering applications.

Abstract: A method of preparing polybutadiene polymers utilizing a three-component system consisting of an organoaluminum compound, an organonickel compound and a fluoride compound selected from the group of hydrogen fluoride and its complexes and boron trifluoride and its compounds, the improvement being mixing the catalyst components in the presence of a preforming agent selected from the group of monoolefins, nonconjugated diolefins, cyclic nonconjugated multiolefins, acetylenic hydrocarbons, triolefins, vinyl ethers and aromatic nitriles.

Abstract: There is disclosed a process for the preparation of 2-methyl-1,5-diaminopentane by a multi-stage hydrogenation of .alpha.-methylene glutaronitrile using as a catalyst a highly dispersed form of nickel in which the first stage hydrogenation is conducted at temperatures ranging from about 20.degree.C to about 50.degree.C and a hydrogen pressure of at least about 14 kilograms per square centimeter and the second stage hydrogenation is conducted at temperatures ranging from about 120.degree.C to about 140.degree.C using a hydrogen pressure of at least about 42 kilograms per square centimeter.

Abstract: A method of preparing synthetic rubbers wherein the monomer plus vinyl chloride is contacted with a catalyst normally imparting a high trans-1,4 configuration to the polymer, resulting in a mixture of cis-1,4 and trans-1,4 homopolymers.

Abstract: There is disclosed an improved process of olefin metathesis which employs catalysts which are tungsten oxides or tungsten sulfides on suitable supports. The improvement is the pretreatment of such catalysts or the regeneration of such catalysts with ethylene or a butene at about 450.degree.C to about 750.degree.C.

Abstract: A method of preparation and the composition of thermoplastic block polymers wherein divinylbenzene is added with the diolefin monomer to a polystyryllithium initiator to prepare a unique block polymer having good physical characteristics and low gel.

Abstract: There is disclosed a method of recovery of isoprene from a hydrocarbon stream consisting of predominately C-5 hydrocarbons and containing isoprene, n-pentane and other 5 carbon atom hydrocarbons which comprises subjecting said hydrocarbon stream to two successive high efficiency distillations, the first distillation being conducted in a manner as to remove as an overhead fraction, hydrocarbon components of said stream which are more volatile than the azeotrope of isoprene/n-pentane and as a bottom fraction the other hydrocarbons in said stream, subjecting the bottom fraction from the first distillation to the second distillation, the second distillation being conducted in a manner as to remove the azeotrope of isoprene/n-pentane as an overhead fraction and as a bottom fraction the other hydrocarbons which are less volatile than the azeotrope of isoprene/n-pentane, and recovering the isoprene/n-pentane azeotrope.

Abstract: There is disclosed a new process for ring-opening polymerization of cycloolefins by the use of a catalyst comprising (A) tungsten or molybdenum halides, (B) alkyl aluminum halides and (C) an alcohol which has a nitrile substituent. Also the catalyst is disclosed as useful in metathesis of olefins.

Abstract: There is disclosed a process for the preparation of high cis polyoctenamer and high cis polybutenamer or copolymers thereof by the polymerization of cyclooctene and/or 1,5-cyclooctadiene by means of a catalyst system comprising (A) an organosilicon compound, (B) a tungsten halide salt, and (C) an organoaluminum compound.

Abstract: There is disclosed a method of selective hydrogenation of cyclopentadiene which comprises contacting cyclopentadiene with hydrogen in the presence of a catalyst comprising aluminum trialkyl and organonickel compounds. The preferred solvent system for the hydrogenation process is an aliphatic alcohol.

Abstract: A process of polymerizing conjugated diolefinic monomers containing from 4 to about 12 carbon atoms to high molecular weight polymers by bringing said monomers into contact with a catalyst system consisting of (1) an iron-containing compound, (2) an organometallic reducing agent from Groups I and III of the Periodic Table, and (3) a sulfur oxygen containing ligand.

Abstract: A method for the preparation of alicyclic ketones containing 16 carbon atoms in the ring which comprises converting an alicyclic compound possessing 8 carbon atoms in the unsaturated ring such as cyclooctenes and cyclooctadienes into alicyclic compounds which contain 16 carbon atoms in the ring and containing at least 2 carbon-to-carbon double bonds and subsequently converting at least one of the double bonds in such a compound into a carbonyl or ketone functional group is disclosed.