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7612140 |
Toner, method for producing the same, image formation method and image formation apparatus
There is provided a toner having favourable development characteristics and favourable stability and a method for production thereof. The toner comprises at least a graft copolymer and a coloring...
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7598327 |
Method for polymerizing olefins in a gas phase reactor using a seedbed during start-up
A method of starting up a gas phase polymerization reactor, comprising controlling an amount of hydrocarbon absorbed in a polymer seedbed during startup to avoid formation of agglomerates or...
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7598303 |
Process for making an aqueous dispersion
A process for making an aqueous dispersion is provided. More specifically, a process for making an aqueous dispersion having at least two polymeric components is provided.
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7595368 |
Nanofilm compositions with polymeric components
Nanoflims useful for filtration are prepared from amphiphilic species and one or more polymeric components. The amphiphilic species or components may be oriented on an interface or surface. A...
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7491775 |
Polymerization processes
A process for preparing a polymer comprising selecting temperatures and amounts of a polymerization medium, a surfactant, a monomer or polymer seed, and any desired additives to achieve an initial...
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7488770 |
Method for production of polychloroprene latex in ethylene-vinyl-acetate copolymer
A polychloroprene latex is provided with excellent adhesive strength, particularly for an EVA material, by dissolving an ethylene/vinyl acetate copolymer in a chloroprene monomer alone or in a...
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7411020 |
Water-based release coating containing fluorochemical
In one aspect, the invention provides a water-based release coating composition comprising a mixture of: A. from 0.1 to about 5 wt % of a fluoro(meth)acrylate (co)polymer or a fluorochemical...
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7393891 |
Graft copolymer latex and method for preparing dried powder thereof
The present invention is related to a method of manufacture of a graft copolymer latex and its dried powder including a step of manufacture of a latex using a reactive surfactant for a surfactant...
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7317056 |
Synthetic resin emulsion, easily water-swellable pressure-sensitive adhesive compositions containing the same and process for production of the emulsion
There is provided a synthetic resin emulsion comprising polymer particles having a core/shell structure, wherein the shell comprises a copolymer of an unsaturated carboxylic acid and a hydrophilic...
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7303821 |
Material and process for precisely controlled polymeric coatings
This invention provides a chemically coated surface for the electrophoretic separation application. The surface comprises of block copolymers prepared from addition monomers selected from a group...
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7285590 |
Aqueous dispersions containing multi-stage emulsion polymers
Aqueous dispersions are disclosed, having a minimum film formation temperature no greater than about 50° C., that include a multi-stage emulsion polymer made by a process that includes a first...
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7247387 |
Material and process for controlled thin polymeric coatings on plastic surface
This invention provides a chemically coated surface for the plastics surface such as contact lens. The chemical surface coating comprises of at least one addition polymer prepared from addition...
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7235617 |
Organoborane amine complex polymerization initiators and polymerizable compositions
The invention is a two part composition useful for initiating cure of one or more polymerizable monomers which cure when exposed to free radicals comprising in one part an organoboraneamine complex...
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7173082 |
Acrylic impact modifier prepared by multi-stage polymerization and method for preparing the same
The invention relates to an acrylic impact modifier having a core-shell structure that provides an acrylic impact modifier composition comprising (a) a rubber core containing an alkyl acrylate...
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7148280 |
Polymer microspheres containing latent colorants and method of preparation
The present invention relates to a polymer microsphere comprising at least one polymer and at least one bound latent colorant, wherein the microsphere is stabilized by at least one stabilizing...
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7087803 |
Method for the recovery of perfluorinated sulphonic acid
Method for the recovery of a perfluorinated sulphonic acid from a viscous organic residue by aqueous extraction of the acid from the residue in presence of a solvent containing aromatic compounds.
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7078455 |
Aqueous plastic material dispersions method for producing the same and use thereof
The present invention relates to aqueous plastic material dispersions based on vinyl ester copolymers, having a solids content of up to 80% by weight and a minimum film formation temperature below...
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7067578 |
Method for preparing latex
Process for the preparation of latices by batchwise radical polymerization of one or more monomers, comprising the participation, in the polymerization, of: (a) one or more fine dispersions of one...
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7064154 |
Radiation-curable composition for optical fiber coating materials
Compositions for use in optical fiber coatings and optical fibers and optical fiber arrays using these coatings are disclosed, as are methods for making the same. The compositions comprise a...
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7034085 |
Method for polymerizing ethylenically unsaturated monomers by degenerative iodine transfer
The invention pertains to a method for making a block or gradient final (co)polymer comprising a step of radically polymerizing a mixture of ethylenically unsaturated monomers in the presence of a)...
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7034068 |
Aqueous dispersions of water-soluble polymers of N-vinyl carboxylic acid amides, method for the production and use thereof
Aqueous dispersions of water-soluble polymers of N-vinylcarboxamides contain, based on 100 parts of water,
(A) from 5 to 80 parts by weight of water-soluble polymer containing N-vinylformamide...
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7008312 |
Using aqueous binders in producing abrasive materials
The present invention relates to the use of an aqueous polymer dispersion comprising dispersed particles of at least one polymer A1 having a glass transition temperature, Tg, of from −20° C. to...
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6987153 |
Latex binder for nonwoven fibers and article made therewith
The invention relates to a latex that may be utilized as a binder for nonwoven applications to form a permeable sublayer of personal hygiene articles. The latex is prepared by a process including...
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6984702 |
Process for the preparation of functionalized polymer particles
A process for the preparation of amine-functionalized vinyl polymer particles which process comprises suspension polymerizing aminostyrene together with at least one other vinylic monomer and...
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6949601 |
Single stage seed polymerization for the production of large polymer particles with a narrow size distribution
The present invention concerns large spherical polymer particles with a narrow size distribution and a procedure for producing such particles. The procedure is characterized in that a seed...
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6914106 |
Polymer microspheres containing latent colorants and method of preparation
The present invention relates to a polymer microsphere comprising at least one polymer and at least one bound latent colorant, wherein the microsphere is stabilized by at least one stabilizing...
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6911499 |
Polymer composition and a method for producing the same
The present invention relates to powdered, crosslinked polymer compositions, containing
a) 55-99.9 wt.-% of at least one polymerized, ethylenically unsaturated, polymerizable monomer which...
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6906151 |
Semi-continuous bimodal emulsion polymerization
An aqueous semi-continuous emulsion polymerization process for producing bimodal polymer particles in volumes large than a single batch size is provided. A bimodal polymer composition prepared by...
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6897269 |
Processes for transitioning between Ziegler-Natta and alumoxane-based single-site polymerization catalysts
Processes for transitioning among polymerization catalyst systems, preferably catalyst systems that are incompatible with each other. In particular, the processes relate to transitioning among...
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6875799 |
Process for the production of particular polymers
The invention describes a process for the preparation of a particulate polymer, said process comprising: i) forming an aqueous dispersion comprising a particulate polymer seed material and a first...
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6872760 |
Radiation-curable composition for optical fiber coating materials
Compositions for use in optical fiber coatings and optical fibers and optical fiber arrays using these coatings are disclosed, as are methods for making the same. The compositions comprise a...
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6869678 |
Removable pressure-sensitive adhesive and adhesive sheet of the same
A removable pressure-sensitive adhesive which, even when applied to metal sheets or to metallic members which have undergone a coating treatment, is inhibited from increasing in adhesive force with...
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6855786 |
Method for preparing graft copolymer of methylmethacrylate-butadiene-styrene having superior anti-stress whitening properties
The present invention relates to a method of preparing an impact-reinforcement agent for polyvinylchloride (PVC) resin having superior anti-stress whitening properties, and specifically to a method...
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6852812 |
Latex having a high solids content and a low viscosity and exhibiting a bimodal distribution
A process is presented for the preparation of a latex by the emulsion polymerization at a temperature of between 30 and 90 C. of at least one ethylenically unsaturated monomer in the presence of at...
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6852423 |
Paper coating slips containing binding agents with macromonomers
In paper coating slips containing, as a binder, a copolymer which is obtainable by free radical polymerization of ethylenically unsaturated compounds, at least one of the ethylenically unsaturated...
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6849701 |
Droplet polymerization method for synthesis of molecularly imprinted polymers
A droplet polymerization process is provided to create efficacious molecularly imprinted polymers (MIPs). Such imprinted polymers have increased surface area for adsorptive or catalytic reactions....
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6844080 |
Metal alkyl borphydride polymerisation initiators, polymerisable compositions, and uses thereof
Metal alkyl borohydrides are used as initiators of polymerisation, particularly in adhesive compositions for bonding a wide range of substrates including low surface energy substrates such as...
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6841634 |
Modified supported catalysts for the polymerization of olefins
A modified supported olefin polymerization catalyst modified by prepolymerization with an olefin or an olefin mixture different from the olefin or olefin mixture of the subsequent olefin...
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6825290 |
Process for the preparation of latices using block copolymers as surfactants
A subject-matter of the present invention is a process for the preparation of a latex by radical aqueous emulsion polymerization in the presence of at least one ethylenically unsaturated monomer,...
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6800700 |
Polymerizations using adjuvant catalysts
Disclosed herein are methods for producing polymeric materials which are normally tenacious in their character to such degree that their processing by conventional means is not possible, for...
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6790898 |
Preparation of fluorinated core-shell particles with water and oil repellency
The present invention relates to preparation of fluorinated core-shell particles with water and oil repellency, and more particularly, to preparation of emulsion-type coating material with good...
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6787594 |
Reduced formaldehyde nonwoven binders which contain polymerized units of N-methylolacrylamide
The invention is the use of a glycolic acid adduct of sodium sulfite as the reducing agent in the redox couple for polymerization of vinyl acetate polymer based emulsions for nonwoven binders which...
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6784263 |
Catalyst compositions for polymerizing olefins to multimodal molecular weight distribution polymer, processes for production and use of the catalyst
A solid catalyst component comprises a transition metal-containing metallocene compound, a non-cyclopentadienyl transition metal compound, a magnesium compound and a polymeric material which acts...
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6774194 |
Supported catalysts for the polymerization of olefins
Supported catalysts for the polymerization of olefins comprise the following components: (A) a porous organic support functionalised with groups having active hydrogen atoms; (B) an...
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6770681 |
Foamable copolymer resin and a method for preparing the same
The application relates to a foamable copolymer resin and a process for preparing the same, which comprises firstly adding an organic peroxide initiator, a modifying aid and a foaming agent to a...
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6765072 |
PROCESS FOR THE PREPARATION OF AQUEOUS DISPERSIONS OF LATEX PARTICLES HAVING A HETEROGENEOUS MORPHOLOGY, THE LATEX PARTICLES OBTAINABLE WITH THE PROCESS, THE DISPERSIONS AND REDISPERSIBLE POWDERS, AS WELL AS THE USE THEREOF
The invention relates to a process for the preparation of aqueous dispersions of latex particles having a heterogeneous morphology by a semicontinuous emulsion polymerization, comprising the...
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6747107 |
Method of dispersion of a non-Newtonian fluid
Non-Newtonian fluids, such as partially polymerized monomers or solutions of polymer in monomer may be pressure atomized below the surface of an immiscible continuous liquid phase to produce a...
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6747084 |
Process to prepare pressure-sensitive hybrid composite latex adhesives
The invention is directed to an improvement in a process for preparing an aqueous emulsion of pressure-sensitive adhesive based upon acrylic esters having a good balance of adhesive and cohesive...
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6743873 |
Olefin polymerization catalyst composition and preparation thereof
A catalyst composition useful for catalyzing the polymerization of olefinic monomers is disclosed, along with a polymerization method using those catalyst compositions to prepare a variety of...
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6727333 |
Solid catalyst component and catalyst for olefin polymerization, process for producing olefin polymer and process for producing solid catalyst component
There are disclosed: (i) a first solid catalyst component (A1) obtained by contacting (a) a carrier of carboxyl group-carrying polymer particles having an average particle size of from about 1 to...
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