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Matches 701 - 750 out of 5,672

Document Document Title
WO/1996/031543A1
Catalysts consisting of: A) a rare earth alcoholate, a rare carboxylate and/or a complex compound of rare earths with diketones; B) an alumoxane; and C) an inert particulate inorganic solid with a specific area of more than 10 m2/g and a...  
WO/1996/031544A1
Conjugated dienes can be successfully gas-phase polymerised in the presence of catalysts based on rare earth allyl compounds, organic aluminium compounds and an inorganic carrier. The diene rubbers produced by this process have a high ci...  
WO1996026227A3  
WO/1996/028477A1
The present invention provides a process for making fluorinated polymers and copolymers having stable end groups. The process includes (1) contacting a fluoromonomer, an initiator capable of producing stable end groups on the polymer cha...  
WO/1996/026227A2
The invention concerns a process for producing polymers of vinyl aromatic compounds at temperatures in the 0-150 �C range in the presence of catalyst systems containing as active components: (A) compounds of general formula (I): XM(Z1)...  
WO/1996/026226A1
The invention concerns catalyst systems of general formula (I) XM(Z1)z1(Z2)z2(Z3)z3, in which the substituents and indices have the following meanings: X represents C1-C10 alkyl, 5-7-membered cycloalkyl, C1-C10 alkoxy, C6-C15 aryl or com...  
WO/1996/021474A1
Polymers are made from 1,3,7-octatriene or like conjugated polyenes and a cross-linking agent having at least 2 activated double bonds such as ethylene glycol dimethacrylate. These polymers can be used to make absorbent foams that are us...  
WO/1996/018657A1
A process for the preparation of hydrocarbon solutions of monofunctional amine initiators of general structures (II): M-Qn-Z-N(A(R1R2R3))2 or (IV), wherein M is defined as an alkali metal, selected from the group consisting of lithium, s...  
WO/1996/013526A1
The capping of anionic polymers to make functionalized polymers is improved by using alkoxy silyl compounds having protected functional groups, such as acetal groups, as the capping agent. The protected functional groups are stable under...  
WO/1996/013529A1
The invention relates to a new catalyst composition which is suitable for the polymerization of an olefin and which comprises a reduced transition metal complex and a co-catalyst. The invention is characterized in that the transition met...  
WO1995035333A3  
WO/1996/010592A1
Octahydrofluorenyltitanium metal complexes or ring substituted octahydrofluorenyltitanium metal complexes wherein the metal is in the +2, +3 or +4 formal oxidation state and activating cocatalysts or activating techniques are used to pro...  
WO1996004323A3  
WO/1996/010047A1
Selected partially fluorinated 'alpha','omega'-dienes can be (co)polymerized to form polymers in which cyclic structures are present. A novel free radical polymerization process, in which the polymer obtained is dependent on the initiato...  
WO/1996/004322A1
A process for producing polybutadiene or polyisoprene in a gas phase reactor by continuously or intermittently introducing a stream of butadiene or isoprene monomer and optionally an inert gas into a polymerization zone while maintaining...  
WO/1996/004290A1
Biscyclopentadienyl, Group 4 transition metal complexes are formed by contacting a biscyclopentadienyl Group 4 metal halide, hydrocarbyl, hydrocarbyloxy or amide complex with a conjugated diene. Uniquely, the ansa-rac diastereomer is sel...  
WO/1996/004323A2
A process for producing polybutadiene or polyisoprene in a gas phase reactor by continuously introducing a stream of butadiene or isoprene monomer and optionally an inert gas into a polymerization zone while maintaining the temperature w...  
WO/1996/004321A1
A process for producing polymer in a gas phase reactor by introducing a stream of monomer and gas into a polymerization zone while providing at least one liquid component in the polymerization zone.  
WO/1995/035333A2
Ethylene copolymers are prepared with comonomers selected from (a) 'alpha'-olefins, (b) cycloolefins and (c) polyenes, with a content of ethylene units of between 80 and 99 mol %, a content of units derived from 'alpha'-olefin, cycloolef...  
WO/1995/026987A1
An aqueous polymerization process for the preparation of a water soluble thermoplastic resin or resins comprising heating an aqueous solution comprised of a free radical initiator, a stable free radical agent, at least one polymerizable ...  
WO/1995/022566A1
A process for the preparation of hydrocarbon solutions of monofunctional ether initiators of the following general structure: M-Z-O-C(R1R2R3) wherein M is defined as an alkali metal, preferably lithium; Z is defined as a branched or stra...  
WO/1995/015346A1
Low viscosity poly(isoprene)polymers bearing one or two terminal hydroxyl groups having a molecular weight from 1000 to 20000, a polydispersity less than 2. The anionic polymerization of isoprene with monolithium initiators and functiona...  
WO/1995/014718A1
Living anionic polymers of unsaturated monomers are conveniently capped with oxetane or an alkyl substituted oxetane to provide terminal primary hydroxyl groups. The hydroxyl capped polymers are useful in making coatings, sealants, binde...  
WO/1995/014048A1
Addition polymers derived from norbornene-functional monomers are terminated with an olefinic moiety derived from a chain transfer agent selected from a compound having a terminal olefinic double bond between adjacent carbon atoms, exclu...  
WO/1995/013304A1
An adhesive composition containing a polyvinyl alcohol-stabilized butadiene polymer latex and a methylene donor compound. The butadiene polymer latex is prepared by an emulsion polymerization in the presence of polyvinyl alcohol. The adh...  
WO1995005401A3  
WO/1995/006669A1
Novel polymer and copolymer compositions produced from the polymerization of non-conjugated dienes have been found. The novel compositions are produced by an equally novel process comprising cyclopolymerization of non-conjugated dienes e...  
WO/1995/005401A2
A continuous process is disclosed for polymerising anionically (co)polymerisable vinyl or diene compounds in solution in a reaction zone designed as a flow tube by using an organometallic initiator. The reaction runs substantially withou...  
WO/1995/004766A1
Highly resilient xanthogen disulfide-modified chloroprene copolymers and blends thereof with sulfur-modified chloroprene polymers are provided which are particularly adapted for use in high temperature dynamic applications such as in eng...  
WO/1995/004090A1
A modified conjugated diene polymer which is obtained by preparing a conjugated diene polymer in an organic solvent in the presence of a lanthanoid rare earth metal compound as the catalyst and modifying the terminal group(s) thereof wit...  
WO/1995/004026A1
Compounds of general formula (I) characterised in that R1 and R2 are independently selected from the group consisting of COOR, CN, aryl, substituted aryl, COOH, halogen, C(O)NHR4, C(O)NR5R6; X and Y are independently selected from the gr...  
WO/1995/004109A1
Aqueous dispersions which are particularly well suited for use as aqueous ink jet ink compositions having an aqueous carrier medium which comprises water or a mixture of water and at least one organic solvent; a particulate solid, prefer...  
WO/1995/000526A1
Novel titanium or zirconium complexes containing one and only one cyclic delocalized, anionic, pi-bonded, group, said complexes corresponding to formula (I), wherein: M is titanium or zirconium in the +2 formal oxidation state; L is a gr...  
WO/1994/029354A1
The invention concerns polydienes obtained by the anionic polymerization of a diene using a bifunctional Li initiator and subsequent polymer-analogous reaction, containing at least one ethanolamine or oligoether-ol-amine terminal group o...  
WO/1994/026682A1
Pure 1,4-dienes are produced at high rates of reaction by reacting a conjugated diene and an alpha monoolefin at a temperature below 70 �C in the presence of a catalyst comprising a 1,3-bis-(diphenylphosphino) propane ligand of Co(II) ...  
WO/1994/020553A1
Hydrogenated butadiene polymers having terminal silyl groups are prepared from a (4-vinylphenylene)dimethyl(t-butyl)silyl ether which is added to the polymer chain as a silyl ether initiator or an endcapping agent, or both. The silyl gro...  
WO1994012547A3  
WO/1994/014854A1
The invention relates to a catalyst that is suitable for the preparation, via a Ziegler polymerisation, of an olefine polymer, comprising an organometallic compound and a transition metal-imidoaryl complex, characterised in that the comp...  
WO/1994/014820A1
This invention provides a class of cyclic silylureas and a process of preparing them, which process comprises reacting a cyclosilazane with an isocyanate containing moiety; a class of cyclosilazanes and process for making them, which pro...  
WO/1994/012547A2
Catalysts derived from the reaction of Cp*2ZrMe2 with B(C6F5)3 or [N,N-dimethylanilinium][B(C6F5)4] (denoted as [Cp*2ZrMe]+X-, Cp* = pentamethylcyclopentadienyl, X = B(C6F5)4 or CH3B(C6F5)3) are active for the homopolymerization of funct...  
WO/1993/017073A1
Chloroprene/sulfur copolymers peptized either by xanthogen sulfides alone or in combination with mercaptobenzothiazole in an alkaline dispersion are cured in the presence of N-cyclohexyl-2-benzothiazyl-sulfenamide or mercaptobenzothiazol...  
WO/1993/010183A1
Highly filled, curable compositions containing a curable liquid, e.g. methyl methacrylate; 20 to 80 % by weight of a finely divided inorganic filler of defined particle size, e.g. silica; a non-functionalised polymer containing a low Tg ...  
WO/1993/010182A1
Highly filled, curable compositions containing a curable liquid, e.g. methyl methacrylate; 20 to 80 % by weight of a finely divided inorganic filler of defined particle size, e.g. silica; a functionalised polymer containing a low Tg comp...  
WO/1993/010159A1
A polymeric dispersant having a low Tg polymer component, e.g. polybutadiene, and a pendant silylated group with hydrolysable groups capable of associating with and dispersing finely divided inorganic fillers. Curable compositions contai...  
WO/1993/005083A1
A process for the polymerisation of one or more conjugated dienes by means of a rare earth based catalyst in which the catalyst is formed by bringing together in liquid hydrocarbon medium in the presence of a small portion of conjugated ...  
WO/1992/016567A1
The present invention relates to hydrogenated copolymers of butadiene and at least one other diene, preferably isoprene. The copolymer is hydrogenated and comprises at least 10 % by weight of at least one crystallizable segment and at le...  
WO/1992/016568A1
The present invention relates to hydrogenated polybutadiene comprising monomeric units of 1,4-butadiene and 1,2-butadiene addition products. The copolymer is hydrogenated and comprises at least 10 % by weight of at least one crystallizab...  
WO/1992/016023A1
Visible light LEDs are produced having a layer of conjugated polymer which is cast directly from solution or formed as a gel-processed admixture with a carrier polymer. The LEDs can be formed so as to emit polarized light.  
WO/1992/012949A1
Inhibition of popcorn polymer growth by treatment with a sulfur-containing compound. The sulfur-containing compound can be added to organic material from which popcorn polymer is formed, or applied to extant popcorn polymer.  
WO/1992/002562A1
A process in which selected vinyl monomers, such as acrylic esters and acids, and chloroprene are polymerized by contacting them with an aryl diazotate or a metal cyanate in the presence of certain halogenated organic compounds. The proc...  

Matches 701 - 750 out of 5,672