Abstract: A hydrocarbon-derived, tack enhancing, diolefin/olefin backboned resin prepared by reacting, in the presence of an aliphatic hydrocarbon solvent and a selected catalyst, a monomer mixture comprised primarily of a diolefin/olefin mixture, of the piperylene/olefin type, and about 2 to about 12 weight percent .alpha.-methyl styrene.The resin has a particular application for use as a tackifier with styrene-isoprene-styrene block copolymers.

Abstract: Aluminum cyclopentadienyl compounds can be used to synthesize a variety of organic molecules containing the cyclopentadiene group, e.g., substituted cyclopentadiene compounds, polymer molecules with cyclopentadiene pendant groups, and polymer molecules with cyclopentadiene terminal groups.

Abstract: The present invention relates to improved catalyst compositions used in the formation of substantially gel-free copolymers and terpolymers of isobutylene and one or more dienes having an Mn of about less than 500,000, a mole % unsaturation of about 0.1 to about 45, and a polydispersity value of about 2.5 to about 30, wherein the mixture of isobutylene and diene monomers and a cosolvent are contacted with the catalyst composition at polymerization conditions (0.degree. C. to -100.degree. C.) wherein the improvement includes the hydrocarbon soluble catalyst composition being formed from the reaction product of a material of the formula:R.sub.m AlX.sub.

Abstract: The present invention relates to an improved solution process for the formation of substantially gel-free copolymers and terpolymers of isobutylene and one or more dienes having an Mn of about less than 500,000, a mole % unsaturation of about 8 to about 45, and a polydispersity value of about 3 to about 30, wherein the mixture of isobutylene and diene monomers and a cosolvent are contacted with a catalyst at polymerization conditions (-50.degree. -to 100.degree. C.) wherein the improvement includes a hydrocarbon soluble catalyst being formed from the reaction product of a material of the formula:R.sub.m AlX.sub.

Abstract: A method for the preparation of high-melting resins which comprises polymerizing a butadiene-rich C.sub.4 -cut of C.sub.4 -olefins with a liquified protonated Friedel-Crafts catalyst of the formulaAlX.sub.n R.sub.m.HXwhereinX=cl, Br, I;R=c.sub.1 -c.sub.4 alkyl or isoalkyl group;N=1-3;M=0-2;Wherein the catalyst is liquified with alkyl benzenes containing C.sub.1 -C.sub.4 alkyl or isoalkyl groups and wherein the C.sub.4 -olefin cut is used with a content of from 50-70% of 1,3-butadiene and the polymerization takes place at 35.degree.-80.degree. C. The high-melting resin obtained by the aforementioned method.

Abstract: Aluminum cyclopentadienyl compounds can be used to synthesize a variety of organic molecules containing the cyclopentadiene group, e.g., substituted cyclopentadiene compounds, polymer molecules with cyclopentadiene pendant groups, and polymer molecules with cyclopentadiene terminal groups.

Abstract: Cyclized polydienes devoid of crosslinked fractions are prepared by polymerizing conjugated diolefins in solution in a solvent consisting of a mixture of saturated hydrocarbons with 20-95% by weight, with respect to the mixture, of chlorinated saturated hydrocarbons, in the presence of from 0.1 to 10 moles for each 100 moles of diolefins, of a catalyst of the formula R.sub.n Al Cl.sub.3-n, where R is an alkyl radical with 1-6 carbon atoms and n is from 1 to 1.5.These cyclized polydienes can be used in coating formulations.

Abstract: Homopolymers of conjugated dienes and copolymers of conjugated dienes with other conjugated dienes or with vinyl aromatic compounds having an elastomeric character are prepared by use of a catalytic system formed of the reaction product of (a) an organometallic compound of a metal of Group IIIA of the Mendeleev periodic table of elements with (b) at least one electron-donor compound containing at least one hetero-atom.

Abstract: An improved process for copolymerizing the monomers (a) at least one monomer selected from the group consisting of monoolefins, non-conjugated polyenes, conjugated polyenes, haloolefins, unsaturated esters of carboxylic acids and unsaturated ethers and (b) an acrylic monomer under slurry polymerization conditions to give a copolymer containing the monomeric units (a) and (b) alternately connected to each other with good regularity which has a narrow molecular weight distribution and is not liable to gelling during its formation.

Abstract: Novel halogenated organoaluminum catalysts are prepared by prereacting a material of the formula:R.sub.m AlX.sub.3-mWherein m is an integer of from 1 to 3 inclusive, R is the same or different alkyl radical of straight or branched chain structure of from 1 to 7 carbons and X is the same or different halogen selected from the group consisting of chlorine and bromine with Y moles of halogen, halogen acid, mixed halogen or organo-halide per mole of aluminum compound wherein the halogen is selected from the group consisting of chlorine and bromine and the organo group is an alkyl group of straight or branched chain structure of from 2 to 20 carbon atoms, an allylic group of 3-20 carbon atoms or a benzylic group of 7-20 carbon atoms, the quantity (Y) being selected such that (m-Y) is from less than 0.7 to about 0.2. The materials must be prepared sufficiently prior to use to insure extensive reaction of the components to yield an effective polymerization catalyst.

Abstract: An olefin-polymerization catalyst is prepared by reacting at least one compound of an element selected from the group consisting of the elements of groups Ia, IIa, II b, IIIa, IVa, Va and VIa of the Periodic Table of elements with at least one reactive acyl compound to provide a solid reaction product. This is dissolved or dispersed in an anhydrous non-polar organic solvent and contacted with at least one organometallic compound of a metal selected from the group consisting of elements of groups Ia, IIa, IIb, IIIa and IVa of the Periodic Table of elements and the mixture is used in an olefin polymerization reaction. The catalyst contains no transition elements.

Abstract: High molecular weight polymers and highly unsaturated polymers (e.g., butyl rubber) are prepared by homopolymerizing and copolymerizing olefins, isoolefins, conjugated multiolefins, or mixtures of isoolefins and conjugated multiolefins with a catalyst system comprising an organoaluminum compound in conjunction with a cocatalyst selected from the group consisting of sulfur dioxide, sulfur trioxide, halogens, mixed halogens and hypohalides.

Abstract: A continuous process for the preparation of gel-free interpolymers from monomers comprising one or more halomethylated vinyl aromatic compounds and one or more Type III monoolefins is characterized by the use of a solvent or mixture of solvents in which the reactants and the interpolymers are soluble; a soluble Lewis acid or Friedel-Crafts catalyst, especially an organo-Group IIIa element halide catalyst; a reaction temperature in the range of -120.degree. C to -20.degree. C; and a conversion of at least one of the monomers to interpolymer in excess of 85 percent. The interpolymers may be crosslinked with nucleophilic reagents to produce elastomeric compositions; quaternized with nitrogen, sulfur or phosphorous compounds to give self-emulsifying latices useful as surface coatings or converted to sulfonic or carboxylic derivatives for the preparation of ionomer resins.

Abstract: A homogeneous polymerization process for preparing high unsaturation, high number average molecular weight polymers of isoolefins and conjugated multiolefins, particularly cyclic conjugated multiolefins, by use of a blend of at least one solvent selected from the C.sub.4 -C.sub.8 acyclic paraffins such as hexane with at least one solvent selected from the C.sub.5 -C.sub.8 cycloparaffins such as cyclohexane.

Abstract: A petroleum resin produced by copolymerizing a monomer composition comprising (1) a mixture of 20 to 80 parts by weight of a so-called spent C.sub.4 - or C.sub.5 -fraction obtained by removing most of the dienic constituents from a fraction mainly of four or five carbon atoms formed in petroleum cracking and 80 to 20 parts by weight of styrene and/or a styrene derivative, and (2) 0.5 to 10 parts by weight of divinylbenzene for 100 parts by weight of the monomeric constituents contained in said mixture (1), with a catalyst system comprising an organoaluminum compound represented by the general formula AlR.sub.n X.sub.3.sub.-n (wherein R is an alkyl group having 1 to 4 carbon atoms, X is a halogen atom, and n is a positive number from 1 to 2) as main catalyst and an alkyl halide or a hydrogen halide as co-catalyst in a hydrocarbon solvent at a temperature of 0.degree. to 60.degree. C.

Abstract: A tackifier composition comprised of a tackifying resin and a selected oily polymer distillation cut as well as an admixture thereof with selected rubbery polymers to achieve an adhesive composition. Said tackifier composition is comprised of both a tackifying resin derived from the polymerization of a mixture of at least one olefin and at least one diolefin as well as an oily polymer distillation cut at a temperature in the range of about 190.degree. C to about 250.degree. C of the product of polymerizing a monomer mixture comprised primarily of piperylene and selected monoolefins with the optional addition of dicyclopentadiene and .alpha.-methyl styrene.

Abstract: A novel petroleum resin having not only a relatively low molecular weight but a narrow molecular weight distribution and having excellent characteristics as a tackifier particularly suitable for use in hot-melt adhesives and also suitable for synthetic rubbers, adhesive tapes, sealants, and the like, which resin is obtained by copolymerizing 20 to 80 parts by weight of a so-called spent C.sub.4 - or C.sub.5 -fraction obtained by removing most of the dienic constituents from the fractions mainly of C.sub.4 or C.sub.5 carbon atoms produced by petroleum cracking and 80 to 20 parts by weight of styrene and/or a styrene derivative with a catalyst system comprising an organoaluminum compound represented by the general formula AlRX.sub.2 (wherein R is an alkyl group having 1 to 4 carbon atoms and X is a halogen atom) as main catalyst and an alkyl halide or a hydrogen halide as co-catalyst, in a hydrocarbon solvent at a temperature of 0.degree. to 60.degree. C.

Abstract: High molecular weight polymers and highly unsaturated polymers (e.g. butyl rubber) are prepared by homopolymerizing and copolymerizing olefins, isoolefins, conjugated multiolefins, or mixtures of isoolefins and conjugated multiolefins with a catalyst system comprising an organoaluminum compound in conjunction with a cocatalyst selected from the group consisting of sulfur dioxide, sulfur trioxide, halogens, mixed halogens and hypohalides.

Abstract: A class of soluble polymers of high molecular weight is disclosed whose members are: copolymers of polycyclic polyenes containing two conjugated double bonds which are members of the group consisting of a) polycyclic polyenes having an endomethylenic system orthocondensed with another hydrocarbon ring wherein the two common carbon atoms form a part of a conjugated diene system whose double bonds are located inside the non-endomethylenic ring, b) polyenes presenting an alkylidene group conjugated with a double bond of a ring which forms a part of an endocyclic system, and c) orthocondensed polycyclic polyenes substituted with an alkylidene type ring whose double bond is conjugated with a double bond of one of the cycles; and homopolymers of at least one of said polycyclic polyenes with at least one other conjugated diene.

Abstract: A catalyst system comprising (I) an organoaluminum compound, (II) an organophosphine compound, and (III) a metal salt of a beta-diketone, is effective to homopolymerize an alkene oxide, homopolymerize an ester of acrylic or methacrylic acid or certain other vinyl monomers, or to copolymerize an alkene oxide with an ester of acrylic or methacrylic acid or certain other vinyl monomers. Suitable vinyl monomers include vinyl esters, vinyl ethers, or vinyl ketones.

Abstract: High yields of elastomeric copolymers of ethylene and higher alpha-olefins, or of ethylene, higher alpha-olefins and unsaturated monomers (polyenes) containing two or more double bonds are obtained by copolymerizing a mixture of the monomers in contact with a catalyst prepared by mixing a catalyst-forming component which is an organometallic compound of aluminum with a supported catalyst-forming component obtained by contacting a halogenated titanium compound with a carrier or support consisting of or comprising an anhydrous Mg or Mn halide partially or completely complexed with a Lewis base capable of forming a complex with it.The copolymers so obtained have valuable mechanical properties, in particular a relatively low value of permanent set and do not exhibit excessive residual deformation at break.

Abstract: Synthetic resin composition and mixtures thereof in rubber-based compositions and paint-type resin compositions. Said synthetic resin composition is prepared by polymerizing monomer mixture of (A) selected methyl branched .alpha.-olefin having its tertiary carbon atom removed from the carbon-to-carbon double bond and (B) at least one aromatic monomer selected from styrene and .alpha.-methyl styrene.

Abstract: Age resistant resin which comprises a composition selected from (A) a composition having a softening point in the range of 0.degree. C to about 140.degree. C comprising units derived from selected aliphatic diolefins and aliphatic monoolefins, which can be modified with units derived from dicyclopentadiene, and certain vinyl aromatic compounds, and selected phenol or amine type compounds and (B) a composition having a softening point in the range of about 60.degree. C to about 110.degree. C comprising units derived from monoolefins and vinyl aromatic compounds, which can be modified with aliphatic diolefins, and selected phenol and amine type compounds. Such age resistant resins have particular utility when admixed with various rubbery materials and thermoplastics to create pressure sensitive adhesives and hot melt adhesives.

Abstract: An improved process for the polymerization of epoxides with an organoaluminum catalyst is described. Improvements in conversion, yield and reaction rate are realized by contacting the epoxide at a temperature below 0.degree. C. with at least a catalytic amount of the organoaluminum compound in the presence of at least 0.1 mole, per mole of aluminum, of a perhalogenated aliphatic monoketone which is preferably hexafluoroacetone.

Abstract: Substantially gel-free copolymers of cyclopentene with dicyclopentadiene are prepared by polymerizing these monomers in the presence of (1) a catalyst comprising (a) at least one compound selected from the group consisting of dialkylaluminum iodides, alkylaluminum diiodides and mixtures of trialkylaluminum compounds with elemental iodine and (b) at least one solvent- or monomer-soluble tungsten compound, and (2) at least one nonconjugated acyclic olefin having at least one hydrogen on each double-bonded carbon atom. Catalyst component (a) is charged before catalyst component (b).

Abstract: An alternating copolymer of an olefinic unsaturated compound and a conjugated vinyl compound is produced by contacting said monomers with at least one organoboron halide or/and a mixture of at least one organo-compound of metal from Groups IIb, IIIb and IVb of the Mendeleev Periodic Table and at least one halogeno-compound of metal from Groups IIIb and IVb of the Mendeleev Periodic Table. A typical catalyst is ethylboron dichloride or a combination of triethylaluminum and tin tetrachloride.