Matches 101 - 150 out of 477 < 1 2 3 4 5 6 7 8 9 10 >
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6221983 Dispersion polymerization in the presence of metallocene catalyst  
The present invention is a process of preparing copolymers of vinyl aromatic and olefinic monomers wherein the polymerization is carried out in a dispersion in the presence of a metallocene...
6218456 Anticorrosion binders comprising phosphate or phosphonate groups  
An aqueous polymer dispersion obtainable by emulsion polymerization of a monomer mixture A) comprising from 50 to 100% by weight of C 1 -C 18 alkyl (meth)acrylates, vinyl esters, vinylaromatic...
6187853 Process for the preparation of dispersions using viscosity-increase inhibitors of water-soluble polymers  
A process for producing a water-soluble polymer dispersion comprising polymerizing water-soluble monomers having double bonds in an aqueous salt solution that dissolves the monomers but does not...
6184287 Polymeric latexes prepared in the presence of 2-acrylamido-2-methylpropanesulfonate  
A polymeric latex prepared by aqueous emulsion polymerization of a monomeric mixture comprising styrene and butadiene in the presence of a seed polymer prepared by aqueous emulsion polymerization...
6177525 Process for preparing microemulsion polymer particles using high shear forces  
A particulate polymer P having an average particle diameter d 50 of from 0.1 to 50 μm is prepared by a process in which an emulsion E is prepared from one or more monomers M, which are...
6133363 Process for producing dispersions of water-soluble vinyl polymers and stabilizer for implementing the process  
The invention relates to a method of manufacturing dispersions of water-sble cationic vinyl polymers which can be used as process aids for separation processes, e.g. as flocculation aids,...
6121364 Binder resin, process for its manufacture and composition containing it  
A polymeric material comprising at least first and second polymer parts, which first part has a number average molecular weight higher than that of the second part and which first and second...
6107404 Paintable, surface-damage resistant reactor grade thermoplastic olefin (TPO)  
A paintable, reactor grade thermoplastic olefin (TPO) comprising a blend of elastomer and polypropylene. The elastomer is present in an amount of about 10 to 35% by weight, based on the weight of...
6103830 Impact resistant methacrylic resin containing a partially hydrogenated, conjugated diene polymer  
A methacrylic resin having excellent impact resistance which is industrially more usable in general purposes, has the excellent weatherability and surface gloss inherent in methacrylic resins, and...
6100355 Process for acrylic suspension polymerization with partially hydrosoluble comonomers  
Process for the polymerization of acrylic monomers in aqueous suspension, wherein at least a comonomer has a solubility in water of at least 5 g per 100 g of water, to obtain copolymers containing...
6096845 Preparation of crystalline polymers by dispersion polymerization in the presence of metallocene catalyst systems  
Crystalline polymers of ethylene, propylene or cyclic olefins or mixtures thereof are prepared by a process in which polymerization is carried out in the presence of a metallocene catalyst system...
6096837 Method for preventing fouling and sheeting in gas phase reactors  
A method for preventing sheeting problems in a gas phase reactor in such multi-phase polymerization process, which comprises at least one loop reactor followed by a gas phase reactor, where the...
6093780 Cyanoacrylate adhesive compositions with improved cured thermal properties  
The present invention is directed to cyanoacrylate-based compositions, which include in addition to the cyanoacrylate component, a thermal-resistance conferring agent, such as an alkylating agent...
6063725 Olefin polymerization catalyst system  
An olefin polymerization catalyst system comprising an organic transition metal compound and a support, wherein an organic transition metal compound is soluble in an inert organic solvent and a...
6057409 Supercritical polymerization processes  
A process for the preparation of carrier powder polymer coatings which comprises the supercritical polymerization of two monomers and surfactant in a supercritical medium.
6028140 Process for the (co)polymerization of olefins  
Homopolymers or copolymers obtained by a multistage process of olefins having the formula CH 2 CHR, in which R is hydrogen or R has from 1 to 10 carbon atoms and is an alkyl, cycloalkyl or aryl...
6028135 Preparation of aqueous polymer dispersions of low viscosity with polymer volume concentrations of at least 50%  
A process for the preparation of aqueous polymer dispersions of low viscosity with polymer volume concentrations of at least 50% by volume, based on the polymer dispersion, by free-radical emulsion...
6005042 Aqueous polymer dispersions as binders for elastic, nonblocking and scratch-resistant coatings  
A polymer dispersion having a minimum film-forming temperature in the range from 0 to 40° C., which is useful in coating compositions for substrates, in the form of varnishes or gloss paints, is...
5998554 Process for producing acrylic resins excellent in toughness  
A simple process for producing acrylic resins excellent in toughness was provided. The process comprises putting a monomer mixture comprising (i) 80 to 99 parts by weight of a methacrylic monomer...
5994419 Preparation of rapidly dissolving/absorbing powders of hydrophilic/super absorbent (CO)polymers  
Rapidly dissolving/absorbing free-flowing powders of hydrophilic/superabsorbent (co)polymers, having irregular nonspherical morphology and a particle size distribution ranging from 100 μm to 800...
5973054 Colored minute particles  
A method which produces colored minute particles by suspending in an aqueous suspending medium a polymerizable monomer composition obtained by dispersing a coloring agent at least in a...
5959050 Supports useful for molecular imprinting technology  
The claimed invention is directed to a molecularly imprinted support formed from at least two distinct acylic monomers and at least one imprinted molecule. The support comprises beads having a...
5939482 Method for the two-stage preparation of aqueous autocrosslinking copolymer dispersions and their use for coating materials  
The invention concerns a two-stage method for the preparation of aqueous, self-crosslinking copolymer dispersions made from acrylate copolymers having acetoacetyl and carboxylic groups. The...
5932638 Free radical polymerizable compositions including para-halogenated aniline derivatives  
The present invention provides adhesive compositions which include free radical polymerizable compounds and a redox catalyst system to accelerate polymerization thereof. The redox catalyst includes...
5898064 Process for manufacturing resin particles having narrow particle size distribution  
Thermoplastic or thermosetting resin particles having a narrow particle size distribution are produced by suspending a liquid resinous composition in an aqueous solution of an anionic or cationic...
5891947 In-situ anionic continuous dispersion polymerization process  
The present invention relates to a process for the dispersion copolymerization of 35 to 70% by weight of vinyl substituted aromatic monomer and 30 to 65% by weight of conjugated diene monomer...
5886118 Process for polymerizing acrylonitrile  
This invention relates to a process for polymerizing acrylonitrile, comprising: (A) forming a polymerizable mixture comprising acrylonitrile monomer, solvent and a metal catalyst; (B) contacting...
5886109 AZO group-containing high molecular weight compound for block copolymerization  
An azo group-containing high molecular weight compound including --COHN--, an ester linkage, or an amido linkage and a monomer units of 10 to 1000 derived from α,β-ethylenically unsaturated...
5872198 Molecularly imprinted beaded polymers and stabilized suspension polymerization of the same in perfluorocarbon liquids  
A suspension polymerization technique is provided for molecular imprinting based on the use of a perfluorocarbon liquid as the dispersing phase that does not interfere with the interactions between...
5863998 Dicarboxylic acid-functional monomers and polymers prepared from same  
An unsaturated acid-functional monomer having the structure: ##STR1## wherein R is hydrogen or methyl and polymers prepared using the monomer are disclosed.
5849853 Preparation of water-insoluble polymers  
Water-insoluble polymers are prepared by free radical polymerization of ethylenically unsaturated monomers by a process in which the polymerization is carried out in an aqueous gel phase having a...
5821311 Stabilizers, polymers, and emulsions useful for molecular imprinting technology  
The claimed invention is directed to stabilizers, polymers, and emulsifiers useful in preparing molecularly imprinted materials having recognition capabilities corresponding to the imprint molecule.
5817370 Water-dilutable binders, aqueous coating materials containing these binders, and processes for the priming or one-layer coating of plastics  
Water dilutable binders, prepared by subjecting to free radical polymerization (A) from 20 to 90% by weight of a mixture of (a1) from 3 to 50% by weight of acrylic acid, methacrylic acid or a...
5780104 Method for preventing the inner wall surfaces of the polymerization apparatus from being fouled with scale during the polymerizatioin of vinyl chloride  
A method for the homopolymerization or copolymerization of vinyl chloride, wherein the inner wall of the polymerizer and the like are prevented from being fouled with the resulting polymer by...
5780564 Method of preparing a homo-or copolymer of vinyl chloride containing .alpha .  
The invention relates to a homo- or copolymer of vinyl chloride. The polymer contains 0.01-50% of an oligomer of a C 4 -C 20 α-olefin or of an internal olefin or of their mixtures.
5763551 Process for preparing filterable polystyrene dispersion  
Particulate, filterable polystyrene formulations are obtained by anionic polymerization of styrene in nonaqueous dispersion if the polymerization is carried out in an aliphatic hydrocarbon as the...
5763521 Preparation of an aqueous polymer dispersion  
An aqueous polymer dispersion is prepared by free radical aqueous emulsion polymerization of a mixture of monomers having at least one ethylenically unsaturated group, which comprises at least 30%...
5733992 Process for preparing acrylic polymers with acrylamido methylpropan-sulphonic acid dispersants  
Process for the polymerization in aqueous suspension of acrylic monomers in the presence of a polymeric suspending agent, homopolymer or copolymer of a compound of formula: ##STR1## wherein: R 1 ...
5705580 Process for preparing beads of polymers having an acrylic basis  
Process for preparing beads based on acrylic polymers which comprises the preparation of microbeads from 10 to 40 micron by means of a polymerization process in suspension of acrylic monomers in...
5705553 Copolymers containing carboxyl groups in aqueous dispersion form or redispersible powder form and their water-soluble salts, processes for their preparation and their use as thickeners in aqueous formulations  
Copolymers containing carboxyl groups in aqueous dispersion form or redispersible powder form and their water-soluble salts, based on ethylenically unsaturated and copolymerizable monomers, the...
5688870 Process for preparing water dispersible polymer powders  
Water dispersible polymeric powders are prepared in liquid/supercritical CO 2 by the sequential polymerization of a water soluble polymer after the polymerization of a non-water soluble polymer...
5686518 Miniemulsion polymerization process using polymeric co-surfactant  
An essentially stable monomer miniemulsion characterized by small monomer droplet size is prepared and is then polymerized to a polymer latex under free radical polymerization conditions. The...
5679737 Heterogeneous polymerization in carbon dioxide  
The heterogeneous polymerization of water-insoluble polymer in CO 2 is disclosed. The method comprises providing a heterogeneous reaction mixture comprising CO 2 , a monomer, and a surfactant,...
5679735 Process for the preparation of synthetic resin dispersions  
A process for the preparation of a synthetic resin dispersion stabilized by a protective colloid employing at least one initiator and based on a polymer of (a) a first monomer of at least one ester...
5641829 Coating compositions prepared from base neutralized, stable aqueous dispersion of hydroxyl functional acrylic polymers  
A waterborne coating composition contains a base neutralized, stable, aqueous dispersion of a hydroxyl functional acrylic polymer containing less than 1 percent acid, having a number average...
5639836 Heterogenous polymerization in carbon dioxide  
The heterogeneous polymerization of water-soluble polymer in CO 2 is disclosed. The method comprises providing a heterogeneous reaction mixture comprising CO 2 , a monomer, and a surfactant, then...
5629360 Optically clear polymer compositions containing an interpenetrant  
Disclosed are optically clear xerogel polymer compositions containing an interpenetrant.
5625018 Process for producing chloroprene rubber  
A chloroprene rubber having a shade of white only slightly tinged with pale yellow and exhibiting good tackiness is prepared by an aqueous radical emulsion polymerization of chloroprene or a...
5614579 Process for the preparation of tapered copolymers via in situ dispersion  
A process is provided for the preparation of tapered copolymers by the nonaqueous dispersion polymerization of a mixture of 30 to 70% by weight of a conjugated diolefin monomer, preferably...
5597858 Hydrophobically associating dispersants used in forming polymer dispersions  
An improved process for the preparing a dispersions of water soluble cationic polymers in an aqueous salt solution is disclosed. The improvement comprises using as a polymeric dispersion stabilizer...
Matches 101 - 150 out of 477 < 1 2 3 4 5 6 7 8 9 10 >