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7541422 |
Enzyme-catalyzed process for the preparation of macrocyclic polyester oligomers
A process for the enzyme-catalyzed preparation of cyclic ester oligomers from dicarboxylic acids and/or dicarboxylic acid derivatives and diols, hydroxycarboxylic acids and/or hydroxycarboxylic...
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7026433 |
Continuous bioreactor process for the preparation of polyester cyclic oligomers
A continuous process for the process for the enzyme-catalyzed preparation of cyclic ester oligomers from linear ester oligomers. The process may use a linear or recirculating reactor.
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6979720 |
manufacture of certain cyclic ester oligomers
Enzymes which are capable of catalyzing esterifications and/or transesterifications such as selected lipases and esterases can, under specified conditions, convert certain lower linear oligomers of...
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6803444 |
Polyhydroxyalkanoate polyester having vinyl phenyl structure in the side chain and its production method
Polyhydroxyalkanoate type polyester that comprises one unit % or more of 3-hydroxy-ω-(4-vinylphenyl)alkanoic acid units. A microbial production method is also provided.
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6680347 |
Self-dispersible epoxide/surfactant coating compositions
A process for making a self-dispersible, radiation curable coating composition involving: (a) providing a cationic oligomer; (b) providing an epoxy functional monomer; (c) providing a surfactant...
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6645743 |
Polyhydroxyalkanoate copolymer containing in molecule unit with vinylphenyl structure in its side chain and method of manufacturing the same
A polyhydroxyalkanoate (PHA) having a desired configuration is produced using a raw material containing ω-(4-vinylphenyl)-alkanoic acid and (ω-substituted alkanoic acid in which a group having a...
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6552120 |
Use of Vinylaromatic/1,3-diene copolymers stabilized with protective colloids in building adhesive formulations
The invention relates to the utilization of aqueous polymer dispersions or of polymer powders which can be redispersed in water and which are based on protective colloid-stabilized aromatic...
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6541564 |
Preparation of copolymers of carbon monoxide and an olefinically unsaturated compound in an aqueous medium
In a process for the metal-catalyzed preparation of copolymers of carbon monoxide and an olefinically unsaturated compound having from 2 to 20 carbon atoms in an aqueous medium, the...
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6399700 |
Comb copolymers for regulating cell-surface interactions
Synthetic comb copolymers which elicit controlled cellular response, methods of applying these polymers to various surfaces, and methods of using the polymers for modifying biomaterial surfaces, 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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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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6127439 |
Process for the preparation of polymer particles
The present invention provides a process for preparing an expandable polymer of a vinyl aromatic monomer and a polar water adsorbing monomer. The monomers are partially polymerized and then...
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6114417 |
Paper sizing agents and methods
Sizing agents comprised of dispersed synthetic polymers in an aqueous solution are provided, as well as methods for making these sizing agents and methods for using these sizing agents to size...
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6100328 |
Method for the production of thermoplastic and thermoadhesive reinforcing materials used in the construction of footwear
Disclosed herein is a method for the production of reinforced thermoplastic and thermoadhesive polymers, used to make shaped reinforcing pieces for footwear in general, including sports shoes,...
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6060558 |
Crosslinked bead-form polymers
Suspension polymers having high swellability have low contents of soluble fractions if aliphatic peroxy esters are used as polymerization initiators.
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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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6001927 |
Thixotropic paint compositions containing hydrophobic starch derivatives
Latex paint compositions containing water, pigment and a latex wherein the latex is prepared by emulsion polymerization of at least one ethylenically unsaturated monomer in the presence of 0.1 to...
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5929143 |
Low compression set silicone elastomers
The present invention provides novel vinyl containing organopolysiloxane elastomers which possess excellent low compression set and heat aging characteristics and which can advantageously be...
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5916967 |
Mixed surfactant and hydrophobically-modified polymer compositions
Aqueous compositions comprising two or more surfactants and an associative thickener, where the type and amounts of the surfactants are selected to provide an aqueous solution having enhanced...
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5789469 |
Polymers having enhanced thermal stabilities and methods for their preparation using stabilization agents 1,6,6,-trimethacryloyl 2,3,3,4,4,-penta-o-methylsucrose 1,2,3,3,4,4,6,6,-octa-o-allylsucrose 1,2,3,3,4,4,6,6,-octo-o-crotylsucrose
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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5760129 |
Method for forming polymers
An aqueous polymerization method is disclosed for forming polymers containing, as polymerized units, at least one monomer having low water solubility, including the steps of: (1) complexing at...
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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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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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5538655 |
Molecular complexes for use as electrolyte components
An molecular complex is provided which includes a linear polymer associated with a cyclic molecule to form a rotaxane of the general formula, ##STR1## where R 1 and R 2 are blocking end groups of...
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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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5424122 |
Nonionic, Ph-neutral pressure sensitive adhesive
The invention relates to a neutral nonionic latex comprising: (a) about 5 to about 70 weight percent of a nonionic polymer comprising polymerized free-radically polymerizable nonionic monomer,...
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5302658 |
Method of manufacturing silicone emulsions
A method is described for making an emulsion in which a mixture is formed containing a polysiloxane and a primary nonionic surfactant having an HLB value of 10 to 19. There is added to the mixture...
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5247013 |
Biocompatible polyester and production thereof
A biocompatible polyester which has improved hydrolyzability obtained by bonding saccharide to the structure of a polymer consisting of a glycolic acid unit and/or a lactic acid unit, and a process...
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5204388 |
Aqueous surface coating material prepared by emulsion polymerization
A water-based emulsion paint, for example, is formulated with high refractive index opacifying pigment particles, dispersant, and polymer particles in which substantially all of the pigment...
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5145906 |
Super-absorbent polymer having improved absorbency properties
Super-absorbent polymers having superior dryness properties when incorporated into absorbent articles are made from acrylic acid and crosslinking agent polymerized under controlled conditions.
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5110848 |
Wet dispersion process and process of producing heat-sensitive recording material
A process for dispersing particles of an organic commpound in water is disclosed, which comprises dispersing the organic compound in water using (1) a water-soluble high molecular weight compound...
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5100949 |
Overcoating agents for heat-sensitive recording materials
This invention provides (i) an overcoating agent for heat-sensitive recording materials which contains as an active component an emulsion of a graft copolymer prepared by graft-copolymerizing an...
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5077336 |
Low-temperature insulating material
The present invention relates to a first low-temperature insulating material which comprises polyvinyl chloride, a plasticizer, a water-containing or absorbing gel or an aqueous solution of a...
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5010114 |
Microsuspension polymerization
Method for polymerizing a monomer suspended in water which comprises: Preparing a polymerization mixture of a water immiscible, liquid, ethylenically unsaturated monomer, a polyisocyanate and an...
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5004767 |
Polymer compositions
The present invention relates to an aqueous acrylate polymer dispersion having a total solids content of 30 to 60% by weight polymerizing one or more acrylate monomers optionally together with...
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4997867 |
Stable compositions
A method of stabilizing an aqueous dispersion of water-absorbent particles and at least one matrix-forming hydrophilic thickening agent comprises the steps of evacuating gas from said dispersion...
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4963597 |
Selective gel system for permeability profile control
An aqueous gel composition is formed from xanthan gum crosslinked with ions of a transitional metal, resorcinol, and formaldehyde. The gel which initially forms is injected into a formation where...
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4954539 |
Aqueous silicone emulsions containing tin monochelate crosslinking catalysts
Aqueous silicone emulsions, especially useful for rendering a wide variety of substrates nonadhesive/water-repellent by polycondensation crosslinking, contain (a) an...
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4931483 |
Polymer/polyol composition, processes for making the same and a polyurethane therefrom
Polymer/polyol compositions, obtained by polymerizing, in situ in a polyol, one or more ethylenically unsaturated monomers comprising an alpha-olefin containing at least 5 carbon atoms and/or an...
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4845152 |
Tape joint compounds utilizing starch stabilized emulsions as binders
Tape joint compounds are prepared using as binders therefor vinyl ester polymers prepared by conventional emulsion polymerization techniques employing, as the stabilizer therein, an acid converted...
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4843106 |
Modified polymer polyols
Fluid polymer polyol dispersions which impart improved fire resistance to polyurethane foam. The fluid polymer polyol dispersions are prepared by grafting one or more monomers onto a polyol...
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4837247 |
Stable polymer polyols in base polyols with molecular weight greater than 4000 using high molecular weight dispersants
Low viscosity polymer polyols having high styrene/acrylonitrile ratios and good stability may be achieved by the use of a base polyol having a molecular weight higher than 4000, for example, from...
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4837246 |
High molecular weight dispersants for polymer polyols
Low viscosity polymer polyol polyols having high styrene/acrylonitrile ratios and good stability may be achieved by the use of a high molecular weight (HMW) dispersant polyol comprising less than 5...
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4835210 |
Water emulsified ketoxime blocked polyurethane
Water emulsifiable ketoxime blocked polyol prepolymers which can be further mixed with a low melting diamine or diol curative and water to make a very low viscosity storage stable, castable,...
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4835206 |
Water soluble polymeric compositions
A homogenous blend is formed of different water soluble polymer types, for instance of particular addition and condensation polymers, by forming one of the polymers from its monomeric starting...
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4824701 |
Method and composition for enhancing properties of barrier coatings
High oxygen barrier characteristics over a wide range of humidity conditions is achieved with a coating formed by an ethylene vinyl alcohol copolymer resin having a sugar additive uniformly...
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4771098 |
Process for preparing acrylic resin dispersions
Acrylic resin dispersions are prepared by a monomer addition process in the presence of a free-radical initiator and an emulsifier, wherein a portion of the emulsifier is dissolved in the initial...
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4752429 |
Process of shaping thermoplastic material containing a carbohydrate additive
A thermoplastic resin is homogeneously mixed with a carbohydrate additive within a predetermined weight ratio range and then extruded under the usual extrusion temperature and pressure conditions...
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4719264 |
Water-reducible, water-remoistenable adhesive composition
Water reducible, water-remoistenable adhesive compositions are made from a blend of (a) an aqueous emulsion of a polymer of vinyl acetate, (b) an organic solvent solution of a copolymer of vinyl...
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4705825 |
Polymeric products and their production
A particulate substantially homogeneous polymeric product is made by dispersing ungelatinised polysaccharide in aqueous monomer containing polymerization initiator, initiating polymerization and...
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