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WO/2004/074332A1 |
The invention relates to a method for the production of homopolymers made of $g(a)-methylstyrene, or copolymers made of $g(a)-methylstyrene and comonomers, by anionic polymerisation in the presence of an initiator composition. The invent...
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WO/2004/069880A1 |
The present invention relates to a catalyst system for preparing styrene polymer and a method of preparing styrene polymer using the same, more particularly to a catalyst system for preparing styrene polymer capable of preventing coagula...
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WO2002050164A9 |
A water-insoluble polymeric oxidizing medium is contemplated that has a plurality of polymerized N-pyridinium vinylbenzyl triiodide or tribromide moieties whose pyridinium rings bear two sustituents, R<1> and R<2>, that are independently...
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WO/2004/050714A2 |
The invention relates to insoluble, highly cross-linked, weakly swelling popcorn polymers containing styrene-4-sulfonate, methods for the production and use thereof as adsorbents, ion exchangers, support materials, filter aids, dye-trans...
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WO/2004/044017A1 |
The instant invention relates to a process for the preparation of hydroxy-vinyl-aromatic polymers in particular 4-hydroxystyrene polymers or copolymers by anionic or controlled radical polymerization of the respective monomer, wherein th...
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WO/2004/022612A1 |
The invention provides a polymer having (a) at least one repeat unit derived from an ethylenically unsaturated compound having at least one fluorine atom covalently attached to an ethylenically unsaturated carbon atom; and (b) at least o...
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WO/2004/013195A2 |
A batch process for the anionic polymerization of a styrenic monomer is described. The process brings together a liquid saturated hydrocarbon diluent, an ether promoter, an organolithium initiator and a styrenic monomer in such a way so ...
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WO/2004/007602A2 |
The invention relates to a catalyst for the polymerisation of 1,4-dienes, styrene and for the copolymerisation of two monomers. The characteristics of the inventive catalyst include a high degree of stereoselectivity, catalytic activity ...
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WO/2004/003105A1 |
Disclosed are phosphors which can easily form thin film by a wet process and give organic electroluminescent devices permitting high-brightness light output, and a process for the production thereof; luminescent compositions containing t...
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WO/2004/003043A1 |
The invention is a method of producing a cross-linked polymeric support having a multimodal pore structure, which comprises providing a degradable initiator molecule; providing an organic phase comprising said initiator molecule, radical...
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WO/2003/102039A1 |
The invention relates to optically active high-molecular compounds represented by the structural formula (1) and stationary-phase materials containing the same. The high-molecular compounds exhibit optical activity by virtue of their sta...
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WO/2003/102692A1 |
A radiation-sensitive patterning composition comprising: (1) at least one acid generating compound selected from compounds of formula (I) and formula (II) wherein: R1, R2, R3, R4, R5, and R6, are independently selected from the group con...
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WO/2003/099881A1 |
An ion−conductive polymer which is represented by the following chemical formula and has at least one of syndiotactic and isotactic stereoregular structures. (I) (In the formula, n is an integer of 2 or larger&semi R is a C1−20 organ...
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WO/2003/097721A1 |
The invention relates to the use of water-soluble polymers, consisting of a) monoethylenically unsaturated monomers consisting of acidic groups in an acidic, partially or fully neutralised form and b) other monomers which can be copolyme...
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WO/2003/091296A1 |
The invention relates to an initiator composition and method for anionic polymerisation, comprising at least one alkali metal hydride, selected from LiH, NaH and KH and at least one organoaluminium compound. The invention further relates...
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WO/2003/091311A1 |
A polymer support is provided which comprises protected hydroxypolyC2-4 alkyleneoxy chains attached to a cross-linked polymer wherein the protected hydroxypolyC2-4 alkyleneoxy chain contains from 2 to 10 C2-4 alkyleneoxy groups and where...
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WO/2003/091267A1 |
A process for the preparation of an oligonucleotide is provided. The process comprises the assembly of an oligonucleotide attached to a solid support, wherein the solid support is prepared by a process comprising polymerisation of a mono...
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WO/2003/089481A1 |
Polymers derived from 4-acyloxystyrene are purified by fractionalization plus heating and cooling of the polymers in alcoholic solvents.
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WO/2003/087178A1 |
An article of manufacture comprises a copolymer of ethylene and vinyl aromatic monomer having a molecular weight of less than 15,000. Preferably, the copolymer is characterized by a backbone having a first and second terminal end group, ...
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WO/2003/085372A2 |
Novel membranes comprising various polymers containing heterocyclic nitrogen groups are described. These membranes are usefully employed in electrochemical sensors, such as amperometric biosensors. More particularly, these membranes effe...
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WO/2003/076483A2 |
The present invention is a fluorine containing ethylene copolymer (FCEC) obtained by the copolymerization of ethylene with suitable fluorine-containing comonomer compounds, wherein the fluorine-containing comonomer compound is present at...
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WO/2003/075094A1 |
Fluorinated copolymers useful in photoresist compositions and associated processes for microlithography are described. These copolymers are comprised of a fluoroalcohol or protected fluoroalcohol functional group which simultaneously imp...
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WO/2003/070797A1 |
A conjugated diene rubber which comprises 40 to 99.9 wt% of units of a conjugated diene monomer, 0 to 59.9 wt% of units of an aromatic vinyl monomer, and 0.1 to 20 wt% of units of a polar monomer and having a Mooney viscosity (M1) of 20 ...
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WO/2003/066687A2 |
Compounds of the formula la, Ib and Ic are suitable photoinitiators which accumulate at the surface of the formulation (Ic), in which R, R1, and R2a are e.g.phenyl substituted by at least one siloxane group A−X−, Ra and R are e.g. ph...
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WO/2003/064032A1 |
A catalyst which is based upon an iron oxide and a compound of a lanthanide, of which iron oxide at least a portion is made by a process which involves heat decomposition of an iron halide, the lanthanide being in a quantity in the range...
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WO/2003/062285A1 |
A process for preparing syndiotactic polymers of vinylaromatic monomers having improved melt flowability comprising contacting one or more vinylaromatic monomers with a catalyst system comprising a titanium coordination complex capable o...
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WO/2003/055919A1 |
The invention provides a method for preparing an aqueous dispersion of polymer particles comprising the following steps: (i) preparing a dispersion having a continuous aqueous phase, a dispersed organic phase comprising one or more ethyl...
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WO/2003/051801A2 |
a,ß,ß-Trifluorostyrene and derivatives thereof synthesized in two steps from 1,1,1,2-tetrafluoroethylene. In the first step, 1,1,1,2-tetrafluoroethylene is reacted with a base, a metal salt such as zinc chloride and an optionally amine...
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WO/2003/051938A2 |
A process for producing polymers of &agr −methylstyrene uses tin IV chloride as a polymerization initiator. Use of tin IV chloride as an initiator allows polymerization to proceed without purification of the monomer prior to processing...
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WO/2003/050149A1 |
The present invention includes an isobutylene based terpolymer suitable for air barriers such as innerliners where adhesion to tire carcass material (e.g., SBR) and flexibility are desirable, as well as low air permeability. The terpolym...
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WO/2003/045552A2 |
A polymeric, phosphorus-containing composition made by heating, in the presence of an initiator, preferably a free radical initiator, and optionally in the presence of one or more comonomers, at least one ethylenically substituted phosph...
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WO/2003/045933A2 |
The rate of aminolysis of butyrolactones is predictably adjusted by attaching a substituent having a known field effect value (F) to the alpha position before reacting the substituted buytrolactone with an amine. The aminolysis product i...
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WO/2003/029256A1 |
A metal compound corresponding to the formula: MX¿x? L¿t? (I), wherein X is hydride or a monovalent anionic ligand group having up to 60 atoms not counting hydrogen, or optionally, two X groups are joined together to form a divalent li...
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WO/2003/022895A1 |
The instant invention relates to a process for the preparation of hydroxy-vinyl-aromatic polymers in particular 4-hydroxystyrene polymers or copolymers by anionic or controlled radical polymerization of the respective monomer, wherein th...
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WO/2003/021581A2 |
A method for determining the water strain of an article is provided in the present invention by predetermining a maximum tilt range and radius for the article. Further embodiments of the present invention include a storage medium for dat...
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WO/2003/006473A1 |
The present invention relates to a catalyst for preparing vinyl aromatic polymer and styrene polymerization using the same, and particularly to a transition metal half metallocene catalyst with a novel structure for preparing syndiotacti...
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WO/2003/004471A1 |
The instant invention relates to multifunctional alkoxyamines based on polyalkylpiperidines, polyalkylpiperazinones and polyalkylmorpholinones and their use as polymerization regulatros/initiators. Further subjects of the invention are a...
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WO/2003/004542A1 |
The present invention relates to a method for preparing a weatherable thermoplastic resin, and more particularly to a method for preparing a thermoplastic acrylate-styrene-acrylonitrile (ASA) resin having superior weatherability and colo...
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WO/2002/098933A1 |
The invention relates to the use of a co-polymer (A), which may be produced by means of radical polymerisation of a) at least one olefinic unsaturated monomer and b) at least one olefinic unsaturated monomer, different from olefinic unsa...
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WO/2002/098932A1 |
The invention relates to powder coating suspensions (powder slurries) and powder coatings. The powder slurries can be produced by:1) emulsifying at least one liquid component containing at least one liquid source product in an aqueous me...
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WO/2002/094892A1 |
A polystyrene seed latex composition is provided having a total emulsion polymer content of from 0.2 to 2.0 weight percent and a particle diameter less than 150Å. The seed latex is produced on a continuous basis by feeding to a continuo...
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WO/2002/088202A1 |
A polymer which has side chains comprising a functional group containing a cyclic moiety composed of carbon and hydrogen and/or of carbon, hydrogen, and X (X is a heteroatom) and having aromaticity and which has a number-average molecula...
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WO/2002/083610A1 |
A curable polyvinylbenzyl compound represented by the following general formula (1): (1) wherein R?1¿ represents a C¿2-20? organic group; R?2¿ represents hydrogen, etc.; x is an integer of 0 to 4; and n is an integer of 0 to 2. The co...
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WO/2002/072020A2 |
Compounds which exhibit anti-adhesive properties are described. The compounds may be monomers or polymers. Methods for treating receptor mediated diseases are provided using compounds of the invention. Further methods are provided for cr...
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WO/2002/070603A1 |
The melt of polyvinyl aromatic polymers comprising from 10 to 45 weight % of star branched polymer prepared using a combination of thermal and tetra functional peroxide initiation has an improved melt strength permitting better foam form...
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WO/2002/055594A1 |
The invention relates to EPS particles that contain graphite particles or carbon black particles and, as expanding agents, 2.2 to 6 wt. % pentane and 1 to 10 wt. % water.
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WO/2002/051802A1 |
The invention relates to a method to safely produce, handle and transport packaged organic peroxide formulations comprising a reactive phlegmatiser and to the use of such packaged material in polymerisation and polymer modification proce...
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WO/2002/048222A1 |
A polymer composition is produced by polymerizing an anionic polymerizable monomer or cationic polymerizable monomer in the presence of a styrene polymer mainly having a syndiotactic structure and a rubbery polymer as an optional ingredi...
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WO/2002/046284A1 |
Foamed cellular polymer particles having various physical properties made by use of foaming of the polymer containing a blowing agent. The foamed particles can be shipped in packages having less strenght than the packages used to ship th...
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WO/2002/046256A2 |
The invention relates to a structurable prepolymer and a heat deformation resistant, moisture insensitive, low loss dielectric polymer material exhibiting low dielectric loss (tano), especially for high-frequency and microwave circuits. ...
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