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7560522 |
Inclusion complexes of unsaturated monomers, their polymers and process for preparation thereof
The present invention describes water-soluble homopolymers obtained by polymerization of monomers containing multiple unsaturations. These monomers form inclusion complexes with cyclodextrins and...
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7423102 |
Star polymer
The present invention provides a star polymer which comprises a central core and three or more branches bonded to the central core, and has a weight average molecular weight of from 1,000 to...
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7332553 |
Functional monomers for molecular recognition and catalysis
The present invention refers to new classes of polymerisable monomers, to molecularly imprinted polymers obtainable by polymerisation of at least one of the monomers and a crosslinking monomer in...
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7288319 |
Forming a chemically cross-linked particle of a desired shape and diameter
Chemically cross-linked polymeric particles are formed using mechanical rather than chemical processes, facilitating production of small-diameter particles in a manner largely independent of the...
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7199200 |
Method for the production of homo-, co- and block copolymers
A process is described for producing homo-, co- and block copolymers by controlled radical polymerization in aqueous solution, wherein a monomer component (A) consisting of at least one radically...
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7183336 |
Irradiated absorbent materials
Polymer particles are irradiated with radiation from a high energy source to increase the water or other fluid absorbency of the particles. Products manufactured using the activated particles...
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7053134 |
Forming a chemically cross-linked particle of a desired shape and diameter
Chemically cross-linked polymeric particles are formed using mechanical rather than chemical processes, facilitating production of small-diameter particles in a manner largely independent of the...
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7005513 |
Functionalized glycosaminoglycan polymer and medical instruments and drugs by using the same
The present invention provides a functionalized polymer which can be used extensively in the field of medical drugs as well as medical devices and which is obtainable in an organic synthetic manner...
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7001960 |
Process for producing vinyl chloride-based polymer
A process for producing a vinyl chloride-based polymer by suspension polymerization is provided. The polymerization is initiated in the presence of (A) a particular hydroxypropylmethylcellulose,...
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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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6800709 |
Method of preparing polymer particles having narrow particle size distribution
A method has been described of preparing monodisperse polymer particles by free radical polymerization or copolymerization of hydrophobic monomers in a water-based system in the presence of...
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6759488 |
Molecularly imprinted polymers grafted on solid supports
The invention refers to a molecularly imprinted polymer, a method of preparing a molecularly imprinted polymer material, and the use thereof. According to the invention a support comprising at...
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6620880 |
Environmentally friendly aqueous architectural coating compositions
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...
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6541579 |
Free radical inhibitors for quenching aqueous phase polymer growth and related methods
An aqueous phase inhibitor for quenching free radical polymerization comprising a free radical quenching agent having a hydrophilic tail is disclosed, as well as a coating and related methods. In...
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6515082 |
Process for preparing polymers
This invention relates to a process for preparing polymers which contain as polymerized units hydrophobic monomers wherein a stable emulsion is formed and the formation of suspension particles is...
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6379599 |
Process for the preparation of molecularly imprinted polymers useful for separation of enzymes
The invention relates to a process for the preparation of molecularly imprinted polymers useful for separation of enzymes, which comprises the steps of reacting a complex of enzyme and affinity...
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6348629 |
Free radical inhibitors for quenching aqueous phase polymer growth and related methods
An aqueous phase inhibitor for quenching free radical polymerization comprising a free radical quenching agent having a hydrophilic tail is disclosed, as well as a coating and related methods. In...
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6313203 |
Use of polyalcohols as polymer stabilizers
Natural cyclic polyalcohols such as polyfructoses and, dehydration products of sugar alcohols can be used for stabilising thermoplastic polymers, at a ratio of 0.001-5 phr of polyol with respect to...
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6277922 |
Disperant system for making polyvinyl chloride which produces low color chlorinated polyvinyl chloride
Chlorinated polyvinyl chloride (CPVC) is prepared from polyvinyl chloride (PVC). When PVC is made utilizing polyvinyl alcohol, the low molecular weight CPVC compound so prepared is colored. A low...
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6271315 |
Methods for making multivalent arrays
A method of preparing a multivalent array that includes: polymerizing at least one monomer comprising at least one polymerizable group and at least one latent reactive group in the presence of a...
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6180738 |
Production of a sticky polymer using an improved carbon black
There is provided a polymerization, especially a gas phase polymerization, of a sticky polymer in the presence of a catalyst under polymerization conditions using carbon black as an inert...
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6153675 |
Fluorinated water-and oil-repellent agents with improved freeze-thaw stability
A water-dispersible, water- and oil-repellent agent, which comprises an aqueous emulsion comprising a copolymer of a fluoroalkyl group-containing monomer with vinylidene chloride or benzyl...
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6063883 |
Permanent decrease of wood hardness by in situ polymerization of prepolymers
A wood article is submitted to a vacuum in an autoclave to remove air that it contains. Then, a solution which contains a water-soluble cross-linkable prepolymer, a polymerization initiator and...
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6020422 |
Aqueous dispersion polymers
Water soluable, aqueous salt solution dispersible polymers and aqueous salt solutions containing dispersed polymers are produced by polymerization of ethylenically unsaturated soluble monomers in...
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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...
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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...
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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...
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5883209 |
Vinyl chloride polymerization with carboxylic acid ester of polyol and suspension agents
The production process includes starting suspension polymerization of vinyl chloride-based monomer in a polymerization vessel in the presence of a particular combination of suspending agents; and,...
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5863551 |
Implantable polymer hydrogel for therapeutic uses
The hydrogel is a copolymer of an N-substituted methacrylamide or acrylamide, a cross-linking agent and a complex sugar or derivative, a tissue adhesion peptide or a polymer conjugate with...
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5834538 |
Pressure sensitive adhesives
A pressure sensitive adhesive(PSA) composition includes a latex system of an aqueous polymer dispersion derived from ethylenically-unsaturated monomers in the presence of a water soluble protective...
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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.
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5684104 |
Water-swellable hydrophilic polymers
Method for avoiding network defects due to unwanted secondary reactions during the polymerization in water-swellable hydrophilic polymers which contain polymers prepared by free radical...
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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...
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5677403 |
Process of producing vinyl chloride polymer with mercapto terminated polyvinylalcohol
This process uses, as dispersion stabilizers, (A) a partially saponified polyvinyl alcohol having an average polymerization degree of 300 to 2,000, a saponification degree of 70 to 85 mol %, and a...
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5667848 |
Use of aqueous polymer dispersions as textile auxiliaries for easy-care finishing of textiles
Aqueous polymer dispersions obtainable by polymerizing free-radically polymerizable unsaturated monomers in aqueous phase in the presence of a saccharide or of mixtures of saccharides by the method...
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5652292 |
Suspension polymerized aqueous absorbent polymer particles
A process for making clusters of individual polymer beads bonded together to minimize attritition in use or processing but characterized by an open structure for fast absorption of aqueous...
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5629360 |
Optically clear polymer compositions containing an interpenetrant
Disclosed are optically clear xerogel polymer compositions containing an interpenetrant.
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5596056 |
Process for producing polymer particles with irregular shape by polymerizing a water-soluble polymerizable monomer
The process of the present invention for producing polymer particles with an irregular shape by polymerizing a water-soluble polymerizable monomer in a system comprising a hydrophobic organic...
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5563192 |
Use of sucrose-based additives as non-crosslinking agents to produce polymers having enhanced thermal stability
A method for producing stabilized polymers, exhibiting enhanced thermal stability, which comprises polymerizing a mixture comprising: a monomer comprising an allyl-containing group which is bonded...
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5563218 |
Superabsorbent polymers
Superabsorbent, high gel strength/short gel time acrylic polymers, well suited for the production of items of feminine hygiene/adult incontinence, are prepared by (a) inversely suspending an...
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5498678 |
Suspension polymerization process for water-soluble monomers
A process is provided for suspension polymerization of water-soluble monomers in aqueous suspension to form spherical, unagglomerated polymer beads. The polymerization is conducted in the presence...
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5486582 |
Polymer scale preventive process using a coating of chitosan salt and phenothiazine
A polymer scale preventive process for use in polymerization of a monomer having an ethylenically unsaturated double bond, comprising (A) a water-soluble basic polysaccharide and (B) a...
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5470931 |
Thermostable polymers from 1',2',3,3',4,4',6,6'-octa-O-allylsucrose
A method for producing stabilized polymers, exhibiting enhanced thermal stability, which comprises polymerizing a mixture comprising: a monomer comprising an allyl-containing group which is bonded...
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5447983 |
Method for producing a large size crosslinked polymer bead
A method for producing a large size crosslinked polymer bead, which comprises dispersing a monomer phase composed essentially of a monovinyl monomer and a crosslinkable monomer in an aqueous phase...
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5412026 |
High temperature aqueous polymerization process
This invention relates to high temperature aqueous processes for the polymerization of monoethylenically unsaturated carboxylic monomers to produce low molecular weight, water-soluble polymer...
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5405618 |
Biomosaic polymer obtained by emulsion polymerization of hydrophobic monomers in the presence of bioactive materials
A biomosaic polymer is provided. Biologically active materials are bound at surfaces of such polymers polymerized from emulsions containing hydrophobic polymerizable monomers, such biologically...
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5403903 |
Process for preventing polymer scale using an alkaline solution of a condensation product of an aromatic dibasic acid dihydrazide and an aromatic tetracarboxylic acid anhydride
A polymer scale preventive agent for use in polymerization of a monomer having an ethylenically unsaturated double bond, comprising an alkaline solution containing a condensation product of (A) an...
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5403899 |
Method for preparing powder including adding fluoro non-ionic surfactant after 70% polymerization is reached of vinyl chloride polymers
A method for preparing powder of a vinyl chloride polymer comprises the steps of polymerizing vinyl chloride monomer or a vinyl monomer mixture mainly comprising vinyl chloride monomer in an...
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5395880 |
Manufacturing method of resin granules
The present invention provides a method which makes it possible to manufacture substantially spherical resin granules with a narrow grain size distribution by a simple operation. According to the...
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5391653 |
Method for preventing polymer scale deposition
A polymer scale preventive agent for use in polymerization of a monomer having an ethylenically unsaturated double bond, comprising an alkaline solution containing a condensation product of (A) an...
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