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Matches 201 - 250 out of 1,297

Document Document Title
WO2002014393A8
The invention relates to a method for producing a polymer dispersion by copolymerisation of 20 - 70 weight parts of a monomer mixture comprising c) 2.5 - 100 wt. % of one or more (meth) acrylic acid esters of monovalent, saturated C3-C8 ...  
WO/2002/057368A1
A low friction hydrogel which comprises a polymer gel and, admixed therewith or graft-polymerized thereto, a straight chain polymer; and a method for preparing the hydrogel. The hydrogel exhibits improved low friction property over a con...  
WO/2002/039979A1
The invention concerns a block-structure copolymer consisting of a hydrophilic saccharide segment and at least a biodegradable hydrophobic segment of general formula (I), wherein: X represents a CN or CONHR radical; Y represents a COOR',...  
WO/2002/035003A1
Alkenyl succinic anhydride (ASA) size emulsions are prepared using a grafted cationic acrylamide starch co-polymer as an emulsification agent. The ASA size emulsions of the present invention exhibit significantly greater stability compar...  
WO/2002/032974A2
A polymer or its salt which is obtainable by polymerization of a monomer of the formula (I) or its salt in the presence of a radical initiator, or by polymerization of a monomer of the formula (I) or its salt with a monomer of the formul...  
WO/2002/014393A1
The invention relates to a method for producing a polymer dispersion by copolymerisation of 20 - 70 weight parts of a monomer mixture comprising c) 2.5 - 100 wt. % of one or more (meth) acrylic acid esters of monovalent, saturated C¿3?-...  
WO/2002/000746A2
The invention concerns a surface treatment solution for an element designed to be contacted with a fluid and/or species contained in said fluid when said fluid is being transported, analysed, purified, separated or preserved. Said method...  
WO/2001/079315A1
A biocompatible, biodegradable, copolymer is prepared from cross-linking a polylactic acid with a polysaccharide such as dextran. The resulting copolymer is a biodegradable hydrogel or solid having both hydrophobic and hydrophilic proper...  
WO/2001/070819A1
The invention relates to a method for continually producing a suspension of cellulose in an aqueous tertiary amine oxide for the use according to the lyocell method. According to the inventive method, (a) a cellulose suspension is produc...  
WO2001029091A8
The invention relates to starch, derived from amylopectin potatoes, which is preferably in a modified and/or derivatised form. Said starch is an especially advantageous protective colloid for use in conducting emulsion polymerization rea...  
WO/2001/055235A1
To facilitate preparation of a molecularly imprinted polymer (MIP) which specifically binds a particular template substance, a virtual library of functional monomers is screened to find those that interact strongly with a molecular model...  
WO/2001/041818A1
Superabsorbent polymers having a slow rate of absorption, and a process for their preparation. The superabsorbent polymer has a slow rate of absorption, is crosslinked with a covalent crosslinking agent and the metal of a polyvalent meta...  
WO/2001/040335A1
The invention relates to hydrophilic hydrogel-forming polymers having acid groups and/or alkali or ammonium salts thereof and 1,4-$g(a)-D-glycosidic compounds, which are post-crosslinked on the surface and having a) a CRC parameter of 1,...  
WO/2001/029091A1
The invention relates to starch, derived from amylopectin potatoes, which is preferably in a modified and/or derivatised form. Said starch is an especially advantageous protective colloid for use in conducting emulsion polymerization rea...  
WO/2001/025295A1
The invention concerns crosslinked copolymers based on non-crosslinked polycarboxylic copolymers, said non-crosslinked copolymers containing at least a polysaccharide. The invention also concerns a method for preparing said copolymers an...  
WO/2001/016197A1
The invention relates to powder-form, cross-linked polymer compositions containing the following: a) 55-99.9 wt. % of at least one polymerised, ethylenically unsaturated, polymerisable monomer containing acid groups, said monomer(s) bein...  
WO/2001/009271A1
The invention relates to the use of grafted polymers as gas hydrate inhibitors.  
WO/2000/077059A1
The invention concerns a novel composition for preparing a polyacryamide gel characterised in that it comprises a hydrophilic polymer which is not in the form of a dispersoid, methods for preparing polyacrylamide gels from said compositi...  
WO2000047633A3
Proposed is a process for the emulsion polymerisation of ethylenically-unsaturated monomers such as vinyl esters, monovinyl aromatic compounds, (meth)acrylic acid and/or derivatives thereof in the presence of a stabilising amount of wate...  
WO/2000/068275A1
The present invention relates to non-symmetrical free radical polymerization initiators and for processes which initiate polymerization, and polymerization reactions which are conducted in the presence of said unsymmetrical free radical ...  
WO/2000/066091A1
The invention relates to the delivery of drug, peptide and protein pharmaceuticals using the folate-mediated uptake system. More particularly the invention relates to the amplification of drug/pharmaceutical delivery with the folate upta...  
WO/2000/055653A1
This disclosure describes a processing approach for the rapid and efficient in-situ polymerization of specially prepared precursor mixtures to achieve near-net-shape production of objects/articles with exact dimensions. The process relie...  
WO/2000/054112A1
The invention relates to novel holographic recording materials for use in the area of photoadressable polymers.  
WO/2000/047644A1
Bioadhesives and controlled release drug delivery systems were prepared from a series of starches grafted with acrylic monomers by two initiation methods: chemical and radiation. In general, the grafted starches prepared by chemical init...  
WO/2000/047633A2
Proposed is a process for the emulsion polymerisation of ethylenically-unsaturated monomers such as vinyl esters, monovinyl aromatic compounds, (meth)acrylic acid and/or derivatives thereof in the presence of a stabilising amount of wate...  
WO/2000/046264A1
The invention relates to a starch-based polymer dispersion, which contains a copolymer of starch with monomers. The invention also relates to a process for the preparation of said dispersion and its use as a surface sizing additive for p...  
WO/2000/022017A1
The invention relates to a method for producing water-swellable hydrophilic polymers by neutralising the acid hydrogel with a degree of neutralisation of 0 40 mol. % to a final degree of neutralisation of 60 85 mol. % by mixing with a ne...  
WO/2000/022018A1
The invention relates to a hydrophilic hydrogel with a high swelling capacity. The inventive hydrogel is based on (co)polymerised monomers or graft (co)polymers and is produced by a) radical (co)polymerisation of one or more hydrophilic ...  
WO1999065971A8
The present invention provides an emulsion polymerization process comprising polymerizing a monomer composition on the basis of ethylenically unsaturated monomers in the presence of water and of at least one protective colloid. The prote...  
WO/2000/009574A1
An improved method for removing initiators from grafting products, in which grafting was initiated by Cer-(IV) salts, is disclosed. According to said method the grafting procuct is washed with a mineral acid solution of ascorbic acid.  
WO/1999/065971A1
The present invention provides an emulsion polymerization process comprising polymerizing a monomer composition on the basis of ethylenically unsaturated monomers in the presence of water and of at least one protective colloid. The prote...  
WO/1999/064485A1
The invention relates to absorbent polymers based on optionally partially neutralised, monoethylenically unsaturated, acid group-carrying monomers. The surfaces of said polymers are re-cross-linked. The inventive polymers also have cyclo...  
WO/1999/062974A1
A polymer emulsion which contains polymer particles having an average particle diameter of 30 m or smaller and each comprising a core and a shell, wherein the core is constituted of chitosan (a) and a polymer (b) of either an organic aci...  
WO/1999/057166A1
Disclosed herein are starch stabilized polymeric emulsions. Persulfate salts degrade starch to give it suitable characteristics, and then also, essentially simultaneously, initiate polymerisation with monomers. This permits a single reac...  
WO/1999/052985A1
An environmentally friendly stable aqueous optionally structured water-resistant architectural coating composition (especially a paint) containing a film-forming binder polymer composed of a starch modified by the presence of carboxylic ...  
WO/1999/047129A1
A crosslinkable macromer system that includes two or more polymer-pendent polymerizable groups and one or more polymer-pendent initiator groups. The polymerizable groups and the initiator group(s) can be pendent on the same or different ...  
WO/1999/037395A1
The invention relates to a hydrogel, comprising a hydrophilic hydrogel with a high swelling capacity which is reversibly coated with a material which delays or prevents the uptake of water or aqueous fluids. The invention also relates to...  
WO/1999/009251A1
The invention provides methods for the preparation of a starch copolymer product which is the reaction product of starch and one or more synthetic monomers capable of undergoing free radical polymerization wherein the reaction product is...  
WO/1998/051408A1
A superporous hydrogel composite is formed by polymerizing one or more ethylenically-unsaturated monomers, and a multiolefinic cross-linking agent, in the presence of particles of a disintegrant and a blowing agent. The disintegrant, whi...  
WO1998024821A3  
WO/1998/024821A2
The present invention relates to a method for producing polymers by aqueous emulsion polymerization of ethylenically unsaturated monomers, comprising at least one hydrophobic monomer with a solubility in water below 0.01 g/l at 25 �C (...  
WO/1998/021271A1
Water soluble, aqueous salt solution dispersible polymers and aqueous salt solutions containing dispersed polymers are produced by polymerization of ethylenically unsaturated soluble monomers in an aqueous salt solution in the presence o...  
WO/1998/021106A1
A form-fit, disposable liner (10) for a reusable plastic five gallon paint bucket. The liner is a thin, structurally rigid, single piece plastic liner formed by a suitable plastic molding process. The liner includes a cylindrically shape...  
WO/1998/010276A1
Electrophoresis gels of enhanced selectivity are produced by adding a preformed polymer to a polymerization solution containing at least one monomer and at least one cross-linker. The polymer must be of such a chemical composition and mo...  
WO/1997/049739A1
A stable aqueous dispersion containing cellulose ester, the dispersion being polymeric microparticles comprised of cellulose ester and a polymer formed from at least two different vinyl monomers of which at least one vinyl monomer is pol...  
WO/1997/040078A1
Thermoreversible hydrogels comprising nonionic, uncrosslinked copolymers, and methods of their use in electrophoresis, are provided. The subject copolymers comprise polyacrylamide backbones, where a portion of the acrylamide monomeric un...  
WO/1997/039078A1
The use of bio-degradable organic polymers with a mean molar mass of over 500 in hydraulic cooling systems, in which the aqueous phase of the cooling system additionally contains 0.05 to 5 mg/l of an oxidant with a more positive standard...  
WO/1997/027884A1
A high performance absorbent particulate composition and a method of preparation in which a non-colloidal solid filler core is substantially encapsulated within a layer of hydrogel forming polymer is disclosed. Also disclosed are absorbe...  
WO/1997/026288A1
Thermoreversible hydrogels comprising non-ionic, linear copolymers, and methods of their use in electrophoresis, are provided. The subject copolymers comprise polyacrylamide backbones, where a portion of the acrylamide monomeric units co...  
WO/1997/019978A1
A granular carrier for immobilizing microbial cells, produced by dropping a liquid composition comprising: (a) a hydrophilic photocurable resin having at least two ethylenically unsaturated bonds per molecule, (b) a photopolymerization i...  

Matches 201 - 250 out of 1,297