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WO/2001/060875A1 |
The invention relates to a method for polymerizing or copolymerizing ethylenically unsaturated monomers in the presence of radically decomposing polymerization initiators in a continuously operating polymerization device. Said polymeriza...
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WO/2001/060879A1 |
The present invention relates to a multiblock copolymer having the following structure, and the process to prepare the polymer: Y-X-Y, wherein Y is random polymer block of conjugated diene and aromatic vinyl hydrocarbon; X is butadiene h...
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WO/2001/058965A1 |
This invention relates to a process for removing hydrogenation catalyst residue from hydrogenated polymers comprising: (I) treating a polymer cement comprising an unsaturated polymer in an inert water-immiscible liquid with a hydrogen so...
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WO/2001/058970A1 |
This invention relates to propylene impact copolymer compositions. In particular, these unique and improved compositions can be produced using conventional, commercial-scale processes.
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WO/2001/058913A1 |
The present invention relates to ligands and the synthesis of those ligands for use in metallocene complexes. More particularly, the present invention relates to the synthesis of diarylsilyl bridged biscyclopentadienes using diarylsilyld...
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WO/2001/058962A1 |
The present invention discloses a continuous process for the production of anionically-polymerized organic materials having controlled architectures. The organic materials may be made from one or more temperature-sensitive anionically-po...
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WO/2001/058964A1 |
A syndiotactic styrene (co)polymer which comprises structural units of at least one kind as represented by general formula (1): (wherein R?a¿ is hydrogen, halogeno, C¿1?-C¿30? hydrocarbyl, or a substituent containing one or more atoms...
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WO/2001/057152A2 |
A novel polymodal asymmetric elastomeric block copolymer and a pressure sensitive adhesive, tape and adhesive backed article made therefrom, such as a polymer foam article having a substantially smooth surface prepared by melt-mixing a p...
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WO/2001/057151A2 |
A novel polymodal asymmetric elastomeric block copolymer and a pressure sensitive adhesive, tape and adhesive backed article made therefrom, such as a polymer foam article having a substantially smooth surface prepared by melt-mixing a p...
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WO/2001/055231A1 |
The invention provides an olefin polymer having a narrow molecular weight distribution and a molecular weight falling in a specified range; an olefin polymer having functional groups at the ends;a tapered polymer whose polymer chain cont...
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WO/2001/053369A1 |
Olefin block copolymers excellent in affinity with metal, polar resins or the like, impact resistance, mar resistance, thermal resistance, rigidity, oil resistance, transparency, antifogging properties, electrical insulation properties, ...
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WO/2001/049764A1 |
A process for forming a copolymer comprising the steps of (i) preparing a living polymer segment by using anionic polymerization techniques, (ii) modifying the living polymer by reacting it with an alkyl metal halide to form an organomet...
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WO/2001/046272A1 |
Aromatic silane compounds containing at least an aromatic ring bound directly to the silicon atom, wherein the aromatic ring has at least one substituent located in the ortho position selected from C¿1-10? hydrocarbon groups, are useful...
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WO/2001/046274A1 |
The invention relates to a partly crystalline propylene polymerisate composition which is produced by polymerisation of propylene, ethylene and/or C¿4?-C¿18? alk-1-enes, whereby at least 50 mol. % of the contained monomer units are der...
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WO/2001/044315A1 |
The present invention is directed to a multi-component article which comprises at least two components, each component being produced from a different polymer composition, and at least one polymer composition comprises a hydrogenated blo...
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WO/2001/044367A1 |
Semicrystalline polyolefin composition comprising copolymers a), b) and c) of prolylenewith at least one comonomer selected from C¿4?-C¿10?$g(a)-olefins, where the total content of recurring units from the said comonomer, referred to t...
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WO/2001/042353A1 |
The present invention relates to a free flowing powder composition with a particle size at most 800 $g(m)m comprising: (a) 100 parts by weight of one or more styrenic block copolymers, at least one of which being a block copolymer (a1) c...
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WO/2001/042355A1 |
The present invention relates to a composition comprising a hydrogenated pentablock copolymer having the structure ABABA, wherein block (A) is a hydrogenated vinyl aromatic polymer block having a hydrogenation level of greater than 90 pe...
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WO/2001/042314A1 |
The invention relates to a method for carrying out the transition metal-catalyzed production of polymers having a syndiotactic or predominantly syndiotactic structure from vinyl aromatic monomers. The invention also relates to a method f...
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WO/2001/040339A1 |
The invention relates to block copolymers that are obtained by polymerizing a mixture of olefinically unsaturated monomers consisting of: a) 0 to 40 weight % of one or more ethylenically unsaturated ester compounds of formula (I), wherei...
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WO/2001/036494A1 |
The invention relates to a method for carrying out the anionic polymerization of vinyl aromatic monomers or dienes in the presence of a lithium organyl or lithium alcoholate and a magnesium compound or an aluminum compound, whereby a ste...
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WO/2001/034701A1 |
A propylene resin composition which is capable of being molded into propylene resin moldings which are excellent in the resistance to marring and also is excellent in moldability (injection molding characteristics or injection compressio...
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WO/2001/030859A1 |
A method for removing a solvent from a hydrocarbon solvent solution of a hydrogenated block copolymer (a hydrogenation degree for double bonds of conjugated diene monomer units: 30 % or more) obtained by hydrogenating a block copolymer c...
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WO/2001/030858A1 |
An olefin polymerization pre-catalyst and a method for preparing an activated olefin polymerization catalyst composition from the pre-catalyst are disclosed in formula (I): wherein M, R?1¿, R?2¿, R?3¿ and R?4¿ are defined herein.
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WO/2001/030876A2 |
The present invention provides functionally modified thermoplastic elastomeric compounds composed of at least one polystyrene hard domain, at least one polyolefin rubber domain and at least one cross-linkable compound interspersed within...
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WO/2001/025357A2 |
A pigment dispersion useful for forming coating compositions containing dispersed pigment, a non-aqueous carrier liquid and an ABC-block polymer dispersant (binder); the ABC block polymer has a number average molecular weight of about 5,...
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WO/2001/025334A1 |
Disclosed is a polymer blend composition containing an aromatic carbonate polymer and a rubber-modified monovinylidene aromatic copolymer comprising a star-branched rubber and optionally, a linear rubber. The polymer blend compositions a...
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WO/2001/023437A1 |
An optical material comprising a hydrogenated styrene/conjugated diene block copolymer. The styrene/conjugated diene block copolymer has a star-shaped structure comprising a core and branches linearly extending therefrom, and the branche...
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WO/2001/023472A1 |
The present invention provides a polymer composition comprising a fluorochemical oligomeric compound and a thermoplastic or thermoset polymer. The polymer composition is useful in preparing shaped articles such as fibers and films which ...
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WO/2001/021678A1 |
Self-assembling compounds capable of forming birefringent gels when added to an organic medium in an amount of about 0.05 % to about 2 % by weight are disclosed. A birefringent gel containing a self-assembling compound and an organic mon...
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WO/2001/019915A1 |
Polyolefin compositions comprising (percent by weight) A) 60%-95% of a crystalline polypropylene component having a Melt Flow Rate (MFR?A¿) value of from 2.5 to 50 g/10 min. and containing from 20% to 80% of a fraction A?I¿) having MFR...
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WO/2001/018010A1 |
An ultra-high activity non-metallocene pre-catalyst featuring an amine bis(phenolate) ligand-metal chelate and a corresponding method for catalytic polymerization of alpha-olefin monomers using this pre-catalyst. General formulas of the ...
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WO/2001/018084A1 |
A novel alkenylphenol/(meth)acrylic ester copolymer which is suitable for use as an electronic material, especially a resist material, has a unimodal narrow molecular weight distribution, and has a regulated molecular weight and regulate...
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WO/2001/018083A1 |
An ESCAP type polymer which has a controlled structure wherein the groups protecting phenolic hydroxyl groups have been selectively or partly eliminated or decomposed with an acid and no carboxylic acid residues are contained and which i...
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WO/2001/016198A1 |
A novel star block copolymer which can be made to have a high molecular weight and gives a solution having a lower viscosity than solutions of linear polymers having the same molecular weight as the copolymer and which is expected to be ...
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WO/2001/016187A1 |
The invention concerns an aqueous gel-forming composition comprising block copolymers including at least a water soluble block and at least a block hydrophobic for the major part, and forming a viscoelastic gel.
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WO/2001/014440A1 |
There are a number of recent developments relating to co- and homopolymers of vinyl aromatic monomers. There are syndiotactic polymers of styrene, there are pseudo random polymers of styrene and ethylene. The present invention seeks to p...
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WO/2001/012681A1 |
The present invention is directed to a hydrogenated copolymer of a vinyl aromatic and isoprene monomer which produces optical media discs having extremely low birefringence.
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WO/2001/010919A1 |
A tapered aromatic-vinyl-monomer/conjugated-diene-monomer copolymer rubber in which the ratio of the content by weight of aromatic vinyl monomer units in the polymer molecules having a molecular weight which is 60 % of Mp, W¿0.6Mp?, to ...
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WO/2001/010969A1 |
The present invention relates to the use of linear or star-shaped block copolymers which are provided with at least one polymer block A which mainly consists of isobutene units and at least two polymer blocks B which mainly consist of un...
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WO/2001/009212A1 |
The present invention relates to a butadiene/isoprene/aromatic vinyl hydrocarbon sevenblock copolymer and the process to prepare the copolymer. Said block copolymer have the following structure: Z-XZ-X-Y-X-XZ-Z, wherein Z is aromatic vin...
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WO/2001/005852A1 |
This invention relates to novel homopolymers important for applications where a high density is needed to ensure certain mechanical properties like abrasion resistance, indentation resistance, pressure resistance, topload resistance, mod...
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WO/2001/000257A1 |
The present invention is a hot melt pressure sensitive positioning adhesive for use with an absorbent article. The adhesive contains from 5 to less than 15 percent by weight of a blend of a selectively hydrogenated block copolymer of sty...
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WO/2001/000690A2 |
The invention relates to a multi-stage process for producing ethene homo or copolymer, which multi-stage process comprises, in any order, at least a liquid-phase polymerisation step (a) and a gas-phase polymerisation step (b). The proces...
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WO/2000/077054A1 |
The present invention is directed to a hydrogenated copolymer of a vinyl aromatic and conjugated diene monomer which produces optical media discs having extremely low birefringence.
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WO/2000/077051A1 |
Use of an alkyl dicarboxylic acid having C¿9? to C¿16? in the neutralisation of alkali metal derivatives of a vinyl aromatic-conjugated diene polymer for reducing the water take up of the polymer when subjected to a humid environment.
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WO/2000/077052A2 |
A process for producing a vinyl aromatic-conjugated diene block copolymer, the process comprising solution polymerising at least one vinyl aromatic hydrocarbon and a conjugated diene in the presence of a catalyst based on an alkali metal...
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WO/2000/077095A1 |
Compositions comprising hydrogenated block copolymers can be successfully used in a variety of applications including films, profiles, sheets, pultruded articles, fibers, coated articles, injection molded articles and blow or rotational ...
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WO/2000/077053A1 |
The present invention is directed to a hydrogenated block copolymer of a vinyl aromatic and butadiene which is useful in the preparation of optical media discs having very low birefringence.
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WO/2000/075791A2 |
Provided are block copolymers containing at least two blocks are provided and comprise: (a) a first block containing residues of at least one first ethylenically unsaturated radically polymerizable monomer that is free of hydroxy functio...
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