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3989641 |
Olefine polymerization catalyst
An olefine polymerization catalyst comprises (1) a solid transition metal compound, (2) an organo-compound of a non-transition metal compound, (3) a tetra-alkyl diamine and (4) a phosphine oxide...
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3984350 |
Catalyst component comprising brown titanium trichloride
A new catalyst component and its use with an organoaluminum compound, which component is a brown solid of high surface area and large pore volume comprising beta titanium trichloride and a small...
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3983183 |
Production of high-vinyl group, low-molecular weight unsaturated hydrocarbon polymers
Low molecular weight polybutadiene, polyisoprene and other hydrocarbon polymers having a high vinyl and a low 1,4-trans-double bond content, which are useful in varnishes and impregnating...
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3977997 |
Manufacture of a modified titanium component for Ziegler-Natta catalysts
A process for the manufacture of a modified titanium-containing component of a Ziegler-Natta catalyst for the polymerization of C 3 -6 α-monoolefins, wherein a specific titanium-containing...
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3972866 |
Polymerization process
An olefine polymerization catalyst includes a complex compound of phosphorus having the general formula ##EQU1## where the various groups are defined. Typical phosphorus compounds include ##EQU2##...
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3969335 |
Manufacture of homopolymers of 4-methylpentene-1
Homopolymers of 4-methylpentene-1 are prepared by homopolymerization of 4-methylpentene-1 at a temperature above room temperature, in the presence of hydrogen and in contact with a Ziegler/Natta...
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3969269 |
Olefine polymerization catalyst incorporating an organo-phosphorus compound
An olefine polymerization catalyst comprising (1) a solid compound of a transition metal wherein the said metal has a valency below its maximum, (2) an organo-metallic compound of aluminium, or of...
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3969333 |
Manufacture of copolymers of 4-methylpentene-1
Copolymers of 4-methylpentene-1 are prepared by copolymerization of 4-methylpentene-1 with one or more other C 2 -18 α-alkenes at a temperature above room temperature and in the presence of...
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3966697 |
Production of high-vinyl group, high-molecular weight unsaturated hydrocarbon polymers
High molecular weight polybutadiene, polyisoprene and other hydrocarbon polymers having a high vinyl and a low 1,4-trans-double bond content, which are useful in the manufacture of tire treads and...
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3937692 |
Process for the stereospecific polymerization of diolefins, products he polymerization of olefins
A process for the stereospecific polymerization of olefins is described, wherein the selected monomer is homopolymerized, or the selected monomers are copolymerized, by reacting the selected...
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3901868 |
Process for producing butadiene polymers
A butadiene polymer consisting essentially of syndiotactic 1,2-polybutadiene is produced by the successive steps of: (A) preparing a catalyst component solution by dissolving, in an inert organic...
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3900452 |
Olefinic copolymers and process for the preparation thereof
Substantially linear, amorphous, unsaturated, high molecular weight copolymers of at least one monoolefin selected from ethylene and higher alpha-olefins, with 1, 4, 9-decatriene, alkyl, aryl, and...
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3896096 |
Molecular weight regulation of ethylene alpha-olefin copolymers
In the copolymerization of alpha-olefins, especially the copolymerization of ethylene and propylene (with a diene if desired), using a coordination type catalyst based on a vanadium salt and an...
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3879367 |
Production of crystalline, high-vinyl polybutadiene
Crystalline polybutadiene of high vinyl content and high purity is produced by using as a catalyst for the butadiene polymerization, tungsten oxychloride (WOCl 4 ) or tungsten dioxychloride (WO 2 ...
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3876595 |
PROCESS FOR PRODUCING OLEFINIC COPOLYMERS
A halogen-containing, sulfur-curable, normally amorphous quadripolymer is produced by contacting a mixture of (1) ethylene, (2) an α-olefin having the formula, R--CH=CH 2 wherein R is a...
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3870690 |
PROCESS FOR THE POLYMERIZATION OF ALPHA-OLEFINS
The invention relates to a process for the preparation of olefin polymers using a modified Ziegler-catalyst. As modifiers cyclic dipeptides are used. Polymers are obtained in a high yield having...
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3862257 |
MODIFIED ZIEGLER CATALYST FOR ALPHA OLEFIN WAX SYNTHESIS
In a process for preparing a product of linear alpha olefins having a number average molecular weight ranging from about 70 to about 600, wherein an ethylene-containing gas is polymerized in the...
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3860568 |
NOVEL POLYMERIZATION INITIATOR AND PROCESS FOR POLYMERIZATION USING THE SAME
A process for the polymerization of an olefinic monomer by contacting the monomer with a polymerization initiator having an oxidizing agent, a chelating compound of the metal, in which the metal is...
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3755279 |
COPOLYMERIZATION OF ALPHA OLEFINS WITH STERICALLY HINDERED ALKENYL AMINES USING ZIEGLER CATALYSTS
Alpha-olefins are copolymerized with a sterically hindered alkenyl amine in the presence of an organo-metal-transition metal catalyst (Ziegler-type catalyst). Copolymers are produced having 0.07 to...
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3725373 |
PROCESS FOR HOMOPOLYMERIZING ACRYLONITRILE
A process for the polymerization of acrylonitrile is provided using a catalyst which contains (A) an iron source, (B) an electron donor ligand, and (C) a reducing agent, in molar ratios of (B) to...
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3725366 |
CYCLOALKENYL TRICYCLOALKENE COPOLYMERS AND PRODUCTION THEREOF
Cycloalkenyl tricycloalkenes are novel polycyclic compounds which may include substituents such as methyl, ethyl or others. They can be prepared by reacting a substituted or unsubstituted cyclic...
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3721718 |
CONVERSION OF OLEFINS USING COMPLEXES OF Fe, Ru, Os, Rh OR Ir WITH ORGANOALUMINUMS
A process for the conversion of olefinic hydrocarbons according to the olefin reaction (e.g., the olefin disproportionation reaction) by contacting the olefinic hydrocarbon with a catalyst...
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3691144 |
OLEFIN POLYMERIZATION USING COMPLEXES OF MO AND W, CONTAINING NO WITH ORGANOALUMINUMS
A process for the conversion of olefinic hydrocarbons according to the olefin reaction (e.g., the olefin disproportionation reaction) by contacting the olefinic hydrocarbon with a catalyst...
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3686350 |
PROCESS FOR DIMERIZATION OR CO-DIMERIZATION OF αOLEFIN
A process in which an α-olefin is dimerized or co-dimerized in the presence of a ternary catalyst consisting of (a) an alkyl-aluminum compound, (b) at least one titanate selected from the group...
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3678018 |
SULFUR-CURABLE OLEFINIC COPOLYMERS AND METHOD FOR PRODUCING THE SAME
A sulfur-curable olefinic copolymer consisting essentially of 1. at least one 2-norbornene compound having at the fifth position of the norbornene nucleus a hydrocarbon group containing at least 3...
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3542751 |
PRODUCTION OF CIS-1,4-POLYDIENES BY MEANS OF A TERNARY CATALYST SYSTEM
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3535303 |
PROCESS FOR THE PREPARATION OF UNSATURATED HYDROCARBON POLYMERS HAVING A HIGH PERCENTAGE OF VINYL OPENING CONFIGURATION
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3534006 |
METHODS OF POLYMERIZING ALPHA-OLEFINS WITH A TRANSITION METAL AND A BIS(DIALKYLALUMINUMOXY)ALKANE COMPOUND
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3527739 |
VULCANIZABLE COPOLYMERS OF ETHYLENE,HIGHER ALPHA-OLEFINS AND A 5-ALKADIENYL-2-NORBORNENE,AND PROCESS FOR PRODUCING SAME
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3522332 |
PROCESS FOR THE PREPARATION OF 1,2-POLYBUTADIENE
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3514434 |
PROCESS FOR THE POLYMERIZATION OF ALIPHATIC MONO-1-OLEFINS AND CATALYST THEREFOR
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3513147 |
POLYMERIZATION PROCESS AND CATALYST
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3505302 |
SULFUR-VULCANIZABLE COPOLYMERS AND PROCESS FOR PRODUCING SAME
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3502634 |
PROCESS AND CATALYST FOR POLYMERIZATION OF ALPHA-MONOOLEFINS HAVING THREE OR MORE CARBON ATOMS PER MOLECULE
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3502637 |
HOMOGENEOUS STEREOSPECIFIC CATALYSTS AND POLYMERIZATION OF BUTADIENE THEREWITH
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3489733 |
BINARY COPOLYMERS OF ETHYLENE AND AN OMEGA-ALKENYL-POLYCYCLOALKENE AND TERNARY COPOLYMERS OF ETHYLENE,AN OMEGA-ALKENYL-POLYCYCLOALKENE,AND AN ALIPHATIC MONOOLEFIN
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3484424 |
OLEFIN POLYMERIZATION PROCESS AND CATALYST SYSTEM
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3484388 |
ALKENE OXIDE POLYMERIZATION WITH AN ORGANOALUMINUM,BETA-DIKETONE METAL SALT AND ADJUVANT CATALYST SYSTEM
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3483173 |
VULCANIZABLE OLEFINIC COPOLYMERS AND PROCESS FOR THEIR PREPARATION
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3481914 |
POLYMERIZATION PROCESS AND PRODUCTS
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3476720 |
VULCANIZABLE COPOLYMERS OF AT LEAST ONE OF MONOALKENYL CYCLOPENTENES,MONOALKENYL CYCLOALKENYLOCTENES AND THEIR ALKYL DERIVATIVES
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3476730 |
PROCESS FOR LOW-PRESSURE POLYMERIZATION OF ALPHA-OLEFINES
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3475394 |
PROCESS FOR POLYMERIZING ALPHA-OLEFINS AND POLYMERIZATION CATALYST THEREFOR CONTAINING AN ORGANOALUMINUM SULFATE
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3470142 |
TERPOLYMERS OF ETHYLENE,HIGHER ALPHA-OLEFINS AND CYCLOALKADIENONORBORNENES
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3467631 |
COPOLYMERS OF ETHYLENE,HIGHER ALPHA-OLEFINS AND CYCLOHEXENONORBORNENES
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3466140 |
PROCESS FOR PRODUCING REDUCED TRANSITION METAL HALIDES
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3457186 |
HOMOGENEOUS IRON COORDINATION CATALYSTS
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3453250 |
CYCLIC POLYENE/MONO-OLEFIN COPOLYMERIZATES AND PROCESSES FOR PRODUCING THEM
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3444146 |
VULCANIZABLE OLEFIN COPOLYMERS AND PROCESS FOR PREPARING THEM
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3428699 |
PROCESS FOR THE PREPARATION OF LIQUID,LOW-MOLECULAR WEIGHT UNSATURATED POLYMERS
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