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Matches 401 - 450 out of 2,860

Document Document Title
WO/1996/019967A1
A process is described for making substantially homogeneous copolymers comprising 20-99 % of vinyl pyrrolidone (VP) and 1-80 % of N-3,3-dimethylaminopropyl methacrylamide (DMAPMA), preferably 50-95 % VP and 5-50 % DMAPMA, and, most prefe...  
WO/1996/018673A1
This invention relates to a process for the production of substantially odorless, color stable N-vinyl heterocyclic copolymer which includes contacting alcohol solution of the copolymer, under reduced pressure, with water and a reducing ...  
WO/1996/015163A1
The invention provides a superabsorbent material which comprises a combination of (1) a cationic superabsorbent in which from 20 to 100 % of the functional groups are in basic form, and (2) a cationic exchanger in which from 50 to 100 % ...  
WO/1996/015162A1
The invention provides a water swellable, water-insoluble polymer comprising units derived from a diallylic quaternary ammonium salt monomer cross-linked by a suitable polyfunctional vinyl compound, at least a substantial proportion of t...  
WO/1996/003164A1
A flexible hydrophilic coating on a device which is to contact body fluid and particularly for flexible substrates on intracorporeal devices such as balloons on dilatation catheters. The coating includes at least 30 % of a copolymer of a...  
WO/1996/000248A1
Non-hydrolyzable, hydrophilic, heterocyclic cross-linking agents for cross-linking vinyl comonomers are provided. The cross-linked copolymers form optically transparent, high water content, and high refractive index hydrogels having long...  
WO/1995/029959A1
A composition comprising: (a) at least one olefinic monomer (A), (b) at least one polymer of at least one olefinic monomer, (c) an indicator dye to the basic structure of which an olefinic polymerisable group is covalently bonded directl...  
WO/1995/019378A1
This invention relates to a reactive diluent mixture employed in a free radical polymerization of film-forming monomers which comprises between about 25 and about 90 wt. % N-vinyl lactam containing 6 to 9 carbon atoms and between about 1...  
WO/1995/015987A1
A process for making homogeneous copolymers of vinylpyrrolidone (VP) and vinyl acetate (VA) which form clear aqueous solutions and have high cloud points. The process involves precharging VP and VA monomers in a predetermined ratio, and ...  
WO/1995/015345A1
Polymers of alkyl-1-vinylimidazoles and processes for the production thereof by the radical polymerisation of monomer mixtures comprising: (a) 10 to 100 wt. % at least one alkyl-1-vinylimidazole and (b) 0 to 90 wt. % 1-vinylpyrrolidone, ...  
WO/1995/012837A1
A photoreactive binder that may be used to enhance photospeed in either conventional plates or on-press developable lithographic printing plates. Briefly, a polymer of m-isopropenyl-'alpha', 'alpha'-dimethylbenzyl isocyanate is derivatiz...  
WO/1995/010552A1
The invention provides novel acrylamide functional disubstituted acetyl aryl ketones and a process for their preparation in high yields uncontaminated by difunctional material. The invention further provides photo-cross-linkable composit...  
WO/1995/009878A1
Disclosed are polymer compositions comprising a vinyl amide monomer, a polysiloxanylalkyl acrylate or methacrylate monomer, a styrene and/or styrene related monomer, and a cross-linking agent. These polymer compositions are capable of in...  
WO/1995/007100A1
A compound for protecting a vertebrate against infection by helminths comprising hyaluronidase covalently coupled to an immunostimulating carrier, in preferred form, the immunostimulating carrier to which the hyaluronidase is covalently ...  
WO/1995/005402A1
Aqueous copolymer dispersions are obtained by radical initiated copolymerisation or by copolymerisation initiated by the use of ionising radiation of: (A) 40 to 99 % by weight of one or several water-insoluble, monoethylenically unsatura...  
WO/1995/003388A1
The present invention relates to detergent compositions comprising a polymer selected from N-vinylimidazole N-vinylpyrrolidone copolymers characterized in that said polymer has an average molecular weight range from 5,000 to 50,000.  
WO/1994/029422A1
Grafted polyamidoamines and polyethylene imines are produced by radically initiated polymerisation of (a) 1-vinylpyrrolidone, 1-vinyltriazol, 1-vinylimidazols, mixtures of said monomers or mixtures of at least one of said monomers with u...  
WO/1994/026796A1
The invention concerns homopolymers and copolymers of 1-vinylimidazole and a method of producing low-molecular-weight homopolymers of 1-vinylimidazole and copolymers of 1-vinylimidazole and 1-vinylpyrrolidone by the radical-mechanism pol...  
WO/1994/024177A1
Crosslinked, absorbent pressure sensitive adhesive compositions are disclosed comprising an acrylate or methacrylate ester of an alcohol, a hydrophilic alkylene oxide acrylate, a hydrophilic N-vinyl lactam, and an effective amount of a c...  
WO/1994/024112A1
A reactive monomer for preparing ultraviolet absorbing polymers has formula (I) wherein R1 is a halogen or C1-C6 straight or branched chain alkoxy group; and R2 is a -(CH2)3O-, -(CH2)2O-, -CH(CH3)CH2O-, -CH2CH(CH3)O-, -(CH2)3OCH2-, -(CH2...  
WO/1994/022929A1
A unique polymer was synthesized via copolymerization of vinylpyridine and acetoxystyrene under radical-initiated conditions followed by acidic or basic hydrolysis of the acetoxy group to afford the corresponding hydroxy group. The built...  
WO/1994/022502A1
An improved superabsorbent polymer foam having a morphology to provide improved absorptive properties is disclosed. The foam preferably comprises a superabsorbent polymer formed from a substantially water-soluble, unsaturated monomer hav...  
WO/1994/022923A1
This invention relates to an improved process for producing a clear solution of vinylpyrrolidone (VP) and vinyl acetate (VA) monomers which comprises, in an anhydrous system, (a) reacting a C2 to C3 alcoholic solution containing said VA ...  
WO/1994/020461A1
What is provided herein is the isomeric compound 1-vinyl-3(E)-ethylidene pyrrolidone, in a purity of at least 95 %, and in the form of white, needle-shaped crystals having a melting point of 59-61 �C, a process for making this compound...  
WO/1994/018253A1
Novel fluorosiloxane-containing monomers are disclosed which are especially useful for the preparation of biomedical materials such as contact lenses.  
WO/1994/013882A1
Described is the use, as additives to paper-making pulp, of copolymers obtained by polymerizing a) 5 to 99 mole % of N-vinyl carboxylic acid amides, b) 95 to 1 mole % of monoethylenically unsaturated carboxylic acids and/or alkali-metal,...  
WO/1994/013712A1
The monomer is characterized by the general formula (1) [(R1)(R2)C = C(R3)-CO-L-]q A(NCObloc)p wherein R1, R2 and R3 similar or different, represent a hydrogen or a group selected among the hydrocarbon chains having from 1 to 12 carbon a...  
WO/1994/011408A1
Insoluble, slightly-swelling polymers containing amino groups obtainable from popcorn polymers which contain units of structure (I), in which R, R1 = H or C1 to C4 alkyl, by the separation of the R-CO- group from at least 2 % of the mono...  
WO/1994/010281A1
Copolymers may be produced by radical-initiated copolymerisation of monomer mixtures composed of (a) 60 to 99 % by weight 1-vinylpyrrolidone, 1-vinylimidazole or their mixtures; (b) 1 to 40 % by weight nitrogenated, basic, ethylenically ...  
WO/1994/007686A1
Optically transparent, high refractive index hydrogels are provided. Expansile hydrogel intraocular lenses (10) are fabricated from the hydrogels by heating them above their elastic deformation temperatures and deforming them into an elo...  
WO/1994/001477A1
Polymers consist of (a) 1-50 % weight of one or several unsaturated, polymerisable carboxylic acids having the formula (I), in which R1 stands for hydrogen, C1-C4 alkyl or COOM, R2 stands for hydrogen or C1-C4 alkyl, R3 stands for hydrog...  
WO/1994/000520A1
The present invention relates to aqueous liquid for primers which contain a copolymer mainly formed with a cationic monomer, an alkoxysilane monomer and an ethylenic unsaturated monomer in aqueous medium, wherein low viscosity and superi...  
WO/1993/025595A1
What is provided herein are cationic polymer compositions comprising a cationic polymer of strongly swellable, moderately cross-linked vinyl lactam, e.g. vinylpyrrolidone, and a quaternized amino alkyl acrylamido or acrylate, e.g. quater...  
WO/1993/025594A1
Supports having azlactone-functional surfaces, adduct supports prepared from such azlactone-functional supports, and methods of preparing both are disclosed. Azlactone functionality is introduced to surfaces of a pre-existing support in ...  
WO/1993/022665A1
A capillary tube with a charged inner surface for use in capillary electrophoresis and methods. The tube is filled with an electrolyte solution containing 0.05-30 % weight/weight of a hydrophilic polymer which is characterized by (A) a m...  
WO/1993/022380A1
Crosslinkable, functional polymers of vinylpyrrolidone and an aminoalkyl acrylamide, or aminoalkene, or hydroxyalkene, are made herein, which can be crosslinked to provide aqueous gels for use in many pharmaceutical applications.  
WO/1993/019098A1
A precipitation polymerization process for making copolymers of a vinyl lactam and a polymerizable carboxylic acid in a cosolvent mixture of an aliphatic hydrocarbon solvent, preferably, heptane or cyclohexane, and a secondary alcohol, p...  
WO/1993/018073A1
A process for producing copolymers from monoethylenically unsaturated monomers containing acid groups and from N-vinyl lactames and possibly from other monoethylenically unsaturated monomers by copolymerising the monomers in the presence...  
WO/1993/010201A1
A hydrophilic, pressure-sensitive adhesive composition prepared by irradiating solid poly(N-vinyl lactam) with ionizing radiation to crosslink the poly(N-vinyl lactam) and thereafter mixing the radiation-crosslinked poly(N-vinyl lactam) ...  
WO/1993/009084A1
A novel class of compounds are disclosed which may be used as novel crosslinking agents for acrylic-containing, vinyl-containing and/or styrene-containing hydrophilic monomers to prepare novel UV-curable hydrophilic copolymers suitable f...  
WO/1993/009154A1
Improved silicone-containing hydrogels are disclosed with enhanced wettability comprising a silicone-containing monomer, at least one acrylic-containing hydrophilic monomer, and at least one vinyl-containing hydrophilic monomer.  
WO/1993/007190A1
The present invention concerns an acrylate copolymerisate containing amino, carboxyl and optionally hydroxyl groups characterized in that an acrylate copolymerisate containing an amino group and optionally a carboxyl group is produced A)...  
WO/1993/003077A1
Hydrogel provided as tablets capable of regulating without dissolving, any pH of an aqueous solution, to finally convert the pH to 7. These tablets may be removed from the solution at any time without modifiying the pH and they may be re...  
WO/1993/001221A1
Polymers of one or more radical polymerisable monomers which polymer has pendant groups bearing a centre of permanent positive charge and other pendant groups capable of stably binding the polymer to a surface are useful in the treatment...  
WO/1992/018548A1
A hydrogel copolymer for making contact lenses comprises, by weight, about 5 to about 85 percent of $g(a)-methylene-N-methylpyrrolidone or glycerdyl methacrylate and mixtures thereof from about 5 to about 35 percent of N,N-dimethylacryla...  
WO/1992/011300A1
An improved soft contact lens material, existing as a hydrogel, is formed by a polymer containing a fluorinated monomer, a hydroxyalkyl ester of acrylic or methacrylic acid, and an N-vinyl lactam. The polymer may also contain other hydro...  
WO/1992/010522A1
The invention concerns novel cross-linked poly(N,N-dialkylallyl)ammonium polymer materials which are effective in lowering elevated plasma levels of low density lipoproteins and lipoid components thereof, such as cholesterol, and which a...  
WO/1992/007885A1
Cross-linked copolymers which are obtainable by polymerising a neutral diluent monomer or monomers, a monomer or monomers bearing a centre of permanent positive charge, and a bifunctional and/or trifunctional cross-linking agent, are sui...  
WO/1992/007011A1
What is provided herein are strongly swellable, moderately crosslinked polyvinylpyrrolidone polymers in the form of fine, white powders characterized by (a) an aqueous swelling parameter defined by its gel volume of about 15 to 150 ml/g,...  
WO/1992/002572A1
The present invention is directed to a radiation-curable liquid composition that includes an associative ethylenically unsaturated reactive blend, a resinous poly-(meth)acrylate oligomer and optionally an inert thermoplastic material. Th...  

Matches 401 - 450 out of 2,860