| Document |
Document Title |
|
WO/1999/037694A1 |
A catalyst system for gas phase polymerisation of conjugated dienes, consisting of a rare earth compound, an aluminium organic compound, another Lewis acid, optionally a conjugated diene, an inert inorganic or organic support and a co-ca...
|
|
WO/1999/037697A1 |
An aqueous composition that includes (A) a butadiene polymer latex that is prepared by an emulsion polymerization in the presence of a styrene sulfonate stabilizer and (B) a phenolic resin. A preferred aqueous butadiene polymer latex is ...
|
|
WO/1999/037696A1 |
Polymerization inhibitor compositions for the emulsion polymerization of chloroprene comprise a 4-(lower alkoxy)phenol and a hindered bis(phenol)methane in a molar ratio in the range of 0.5/1-2.5/1. Discoloration resistant polychloropren...
|
|
WO/1999/037695A1 |
A method for producing a catalyst system consisting of a rare earth compound, an aluminium organic compound, another Lewis acid, optionally a conjugated diene and an inert inorganic or organic support material. According to said method, ...
|
|
WO/1999/029747A1 |
A butadiene polymer in which cis-configuration units resulting from a conjugated diene whose main skeleton has four carbon atoms account for at least 50 % of the whole of the units and which has an Mw/Mn ratio of 1.9 or below and an Mw v...
|
|
WO/1999/024481A1 |
The invention relates to a continuous method for producing slightly gelified diene rubber, through anionic polymerisation or copolymerisation of a diene and, optionally, of a vinyl aromatic compound, in a tubular reactor. The method is c...
|
|
WO/1999/020665A1 |
A process is provided for preparing polymer compositions which are multimodal in nature. The process involves contacting, under polymerization conditions, a selected addition polymerizable monomer with a metallocene catalyst having two o...
|
|
WO/1999/020670A1 |
The invention relates to novel catalysts with a base consisting of compounds of the rare earth metals, comprising a compound of the rare earth metals, a cyclopentadiene and an aluminium oxane. The invention also relates to the use of the...
|
|
WO/1999/012980A1 |
A catalyst comprising an organoaluminum compound and a vanadium chelate compound having the ability to cause olefins to undergo living coordination polymerization is contacted with a terminal diolefin to obtain a catalyst for living poly...
|
|
WO/1999/012979A1 |
Initiator compositions capable of imparting improved thermal stability of living polymerization chain ends and processes of using the same. The compositions include an alkyllithium initiator and a silyl ether. The silyl ether can be inco...
|
|
WO/1999/011674A1 |
The invention relates to a method for producing particulate polymers P by radically initiated aqueous emulsion polymerization, wherein at least one ethylenically unsaturated monomer is emulsified by means of a dispersing agent in an aque...
|
|
WO/1999/010421A1 |
The invention includes a process of preparing a coupled polymer comprising heating an admixture containing (1) at least one interpolymer of an alpha-olefin and vinyl aromatic monomer and (2) a coupling amount of at least one poly(sulfony...
|
|
WO/1999/010423A1 |
The present invention includes a process of preparing a coupled polymer by heating an admixture containing (1) at least one elastomer comprising ethylene and at least one comonomer which is selected from alpha olefins having at least 3 c...
|
|
WO/1999/010415A1 |
A process of reacting a poly(sulfonyl azide) with a polymer comprising steps (a) forming a first admixture, hereinafter referred to as a concentrate, of a first amount of a first polymer or in a liquid which does not require removal from...
|
|
WO/1999/010422A1 |
The invention includes a process of preparing a coupled polymer characterized by heating an admixture containing (1) at least one ethylene polymer or blend of ethylene polymers having a density of at least 0.89 g/mL and less than 0.935 g...
|
|
WO/1999/010427A1 |
The invention includes a process of preparing a coupled polymer comprising heating an admixture containing: 1) at least one polyolefin comprising ethylene and at least one comonomer which is selected from alpha olefins having at least 3 ...
|
|
WO/1999/009077A1 |
This invention relates to the controlled molecular weight production of macromonomers and polymers with terminal conjugated double bonds from starting monomers including, but not limited to, substituted butadienes. The terminal diene end...
|
|
WO/1999/007745A1 |
There is provided a process for producing polydienes, such as polybutadiene and polyisoprene, in a gas phase fluidized bed reactor using a pre-activated nickel catalyst which is highly active for cost effective production of these dienes...
|
|
WO/1999/006448A1 |
The invention concerns a catalyst system based on fulvene metal complexes (metallocene), which have been activated with a Lewis acid free from aluminoxan and boron, and its use for polymerising unsaturated compounds, in particular for po...
|
|
WO/1999/003901A1 |
A process is provided for low bed level polymerization, using sound waves to prevent reactor fouling and/or sheeting. The process is useful during reactor start-up, polymer product transitioning, and for polymer residence time control in...
|
|
WO/1998/058972A1 |
A novel series of copolymers and terpolymers, useful as base oils for synthetic lubricants, are produced by polymerization of ethylene, an alpha-olefin, and optionally a third monomer comprising an alpha-olefin of 3 to 20 carbon atoms, i...
|
|
WO/1998/056836A2 |
The invention relates to electrets produced on the basis of cycloolefin copolymers (COC) and characterized by long-term stability of the charges applied thereto, even at high temperatures and high relative air humidity. Cycloolefin copol...
|
|
WO/1998/055517A1 |
The invention relates to a process for making functionalized polymers, comprising the steps of: initiating polymerization of one or more unsaturated monomers with an initiator having structure (1), wherein R?1�, R?2� and R?3� are i...
|
|
WO/1998/052984A1 |
The invention relates to a method for anionic polymerisation of dienes or of dienes and vinyl aromatic monomers in a vinyl aromatic monomer or mixture of monomers to form homopolydienes or copolymers or mixed homopolydienes and copolymer...
|
|
WO/1998/051714A1 |
A new shortstopping agent for use in stopping free radical polymerizations is N-ethylhydroxylamine or salts thereof (EHA). It is as effective as related hydroxylamines, but is much less volatile so that it tends to remain with the polyme...
|
|
WO/1998/048913A1 |
The present invention describes a chromatographic method for separating polynucleotides with improved separation and efficiency. The method uses nonporous polymeric beads having a non-reactive, non-polar surface, and made from a variety ...
|
|
WO/1998/039283A1 |
A process for producing solid, powdery carboxylates of Rare Earths (RE) elements, among them mainly Nd, La, Pr and Ce, where the ligands coordinated to the metal are long-chain, branched carboxylic acids is provided. Preferably, the carb...
|
|
WO/1998/039369A2 |
The invention relates to half-sandwich metallocene catalysts of formula (I) and their use for stereospecific polymerization or copolymerization of an olefin of the formula R?a�CH=CHR?b� wherein R?a� and R?b� can be hydrogen, an u...
|
|
WO/1998/036004A1 |
The present invention relates to a novel catalyst system, the use thereof in the polymerization of dienes in a solution, suspension and vapour phase, and the use of diene rubbers produced therewith, exhibiting a high cis content, an aver...
|
|
WO/1998/033830A1 |
$g(a)-olefin-cycloolefin copolymers which (1) consist essentially of 0-31 % by mole of an $g(a)-olefin component represented by formula (A) wherein R?1� is a hydrogen atom or a saturated aliphatic hydrocarbon group of 1-16 carbon atoms...
|
|
WO/1998/031739A1 |
A process for preparation of a microgel comprising reacting an alkoxyamine with an unsaturated monomer composition comprising a cross-linking agent comprising at least two double bonds and optionally one or more further monomers selected...
|
|
WO/1998/030587A2 |
Supported metal halides and metal halide solid acids are used as catalysts for the polymerization of a feed stream containing at least one of pure monomer, C5 monomers, and C9 monomers to produce hydrocarbon resins. Freely-associated wat...
|
|
WO/1998/030520A1 |
Metal oxide solid acids are used as catalysts for the polymerization of a feed stream containing at least one of pure monomer (e.g., styrene based monomers), C5 monomers, and C9 monomers to produce hydrocarbon resins. Freely-associated w...
|
|
WO/1998/030519A1 |
Solid acids are used as catalysts for the polymerization of a feed stream containing at least one of pure monomer, C5 monomers, and C9 monomers to produce hydrocarbon resins. Freely-associated water may be removed from the solid acid cat...
|
|
WO/1998/030521A1 |
Fluorinated solid acids and supported fluorinated solid acids are used as catalysts for the polymerization of a feed stream containing at least one of pure monomoer, C5 monomers, and C9 monomers to produce hydrocarbon resins. Freely-asso...
|
|
WO/1998/020049A1 |
There is provided a method for terminating a gas phase polymerization of a compound selected from the group consisting of a conjugated diene, a vinyl-substituted aromatic compound, and mixtures thereof, in a polymerization vessel in the ...
|
|
WO/1998/007766A1 |
A process is disclosed for anionically polymerising dienes or for copolymerising dienes and vinyl aromatic monomers in a vinyl aromatic monomer or monomer mixture into homopolydienes or copolymers or mixed homopolydienes and copolymers i...
|
|
WO/1998/007765A2 |
A continuous anionic polymerisation or copolymerisation process of styrene or diene monomers with alkali metal alkyl as polymerisation initiator is carried out in the presence of a metal alkyl or aryl of an at least bivalent element as r...
|
|
WO/1998/002465A1 |
Protected, functionalized heterotelechelic polymers, hydrogenated and/or deprotected analogues thereof, and processes to prepare these polymers. Monomers are polymerized using a protected funtionalized initiator to form a living polymer,...
|
|
WO/1998/001483A1 |
Cycloolefin copolymers for use in optical data memories can be produced by (co)polymerising monomers from the group of cyclic olefins, of $g(a)-olefins with 2 or more C atoms and optionally conjugated or unconjugated diolefins, wherein m...
|
|
WO/1998/001487A1 |
Elastomers can be produced by (co)polymerising monomers from the group of C�2?-C�8?-$g(a)-olefins, C�4?-C�15?-diolefins and other monomers in the solid phase, in solution, as a slurry or in gas phase where metallocene compounds o...
|
|
WO/1998/001485A1 |
High melting-point polyolefins can be produced as such, in solution, suspension or gas phase, metallocene compounds of formula (I) or $g(p)-complex compounds of formulas (I) or (XIII) being used as catalysts. In said formulas: CpI and Cp...
|
|
WO/1998/001484A1 |
Cycloolefin copolymers for technical applications except for using in optical data storage devices can be produced by (co)polymerising monomers from the group of cyclic olefins, of $g(a)-olefins with 2 or more C atoms and conjugated or u...
|
|
WO/1998/001486A1 |
Thermoplastic elastomers can be produced by (co)polymerising monomers from the group of C�2?-C�8?-$g(a)-olefins, C�4?-C�15?-dioledins and other monomers in the solid phase, in solution, as slurry or in the gas phase where metallo...
|
|
WO/1997/048731A1 |
Protected, functionalized telechelic polymers, hydrogenated and/or deprotected analogues thereof, and processes to prepare these polymers are disclosed. In the invention, a lithium initiator is added to a compound having at least two ind...
|
|
WO/1997/047630A1 |
The invention relates to a process for preparing triorganylstannyl lithium compounds from bis-triorganylstannyl oxides R3Sn-O-SnR3, and use of said triorganylstannyl lithium compounds. According to said process, the bis-triorganylstannyl...
|
|
WO/1997/046599A1 |
The present invention teaches the use of particular soluble metallocene catalysts to produce stereoregular polymers in gas phase polymerizations wherein the catalysts are fed into a particle lean zone in the reactor. The metallocenes cat...
|
|
WO/1997/046593A1 |
The invention features a method for preparing telechelic 1,3-diene oligomers that consists in effecting the free radical polymerization of at least one 1,3-diene with a heat sensitive polymerization initiator such as hydrogen peroxide in...
|
|
WO/1997/042017A1 |
A process for producing dip-coated articles in which a heated moulding with an electrolyte adsorbing surface is dipped into an aqueous latex preparation, the latex of which is stabilised substantially by emulsifiers with anionic sulphona...
|
|
WO/1997/036944A1 |
The present invention is a free radical bulk polymerization process for producing a rubber modified polymer from a vinyl aromatic monomer comprising: polymerizing the vinyl aromatic monomer in the presence of a diene rubber having at lea...
|
