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2101 results about "Ionic polymerization" patented technology
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Ionic polymerization is a chain-growth polymerization in which active centers are ions or ion pairs. It can be considered as an alternative to radical polymerization, and may refer to anionic polymerization or cationic polymerization.
Nucleic Acid-Lipopolymer Compositions
InactiveUS20090042829A1Increase efficiency and dosing flexibilityEfficiently be lyophilizedSpecial deliveryPeptide/protein ingredientsCholesterolFiller Excipient
Compositions, methods, and applications that increase the efficiency of nucleic acid transfection are provided. In one aspect, a pharmaceutical composition may include at least about 0.5 mg / ml concentration of a nucleic acid condensed with a cationic lipopolymer suspended in an isotonic solution, where the cationic lipopolymer includes a cationic polymer backbone having cholesterol and polyethylene glycol covalently attached thereto, and wherein the molar ratio of cholesterol to cationic polymer backbone is within a range of from about 0.1 to about 10, and the molar ratio of polyethylene glycol to cationic polymer backbone is within a range of from about 0.1 to about 10. The composition further may include a filler excipient.
Owner:CLSN LAB
Use of sulfur containing initiators for anionic polymerization of monomers
InactiveUS7153919B2Reduced hysteresis lossSilicon organic compoundsLithium organic compoundsElastomerRolling resistance
An initiator is presented for anionically polymerizing monomers, to provide a functional head group on the polymer. A polymer having a functional head group derived from a sulfur containing anionic initiator, and optionally as additional functional group resulting from the use of a functional terminating reagent, coupling agent or linking agent is also provided. A method is presented for anionically polymerizing monomers comprising the step of polymerizing the monomers with a sulfur containing anionic initiator to provide a functional head group on the polymer. An elastomeric compound, comprising a functional polymer and filler is also described. Also provided is a tire having decreased rolling resistance resulting from a tire component containing a vulcanizable elastomeric compound.
Owner:BRIDGESTONE CORP
Composition, method of preparation & application of concentrated formulations of condensed nucleic acids with a cationic lipopolymer
UndeterminedUS20090042825A1Increase efficiency and dosing flexibilitySpecial deliveryPeptide/protein ingredientsFiller ExcipientCholesterol
Compositions, methods, and applications that increase the efficiency of nucleic acid transfection are provided. In one aspect, a pharmaceutical composition may include at least about 0.5 mg / ml concentration of a nucleic acid condensed with a cationic lipopolymer suspended in an isotonic solution, where the cationic lipopolymer includes a cationic polymer backbone having cholesterol and polyethylene glycol covalently attached thereto, and wherein the molar ratio of cholesterol to cationic polymer backbone is within a range of from about 0.1 to about 10, and the molar ratio of polyethylene glycol to cationic polymer backbone is within a range of from about 0.1 to about 10. The composition further may include a filler excipient.
Owner:EXPRESSION GENETICS INC
Three-dimensional objects produced from materials having multiple mechanisms of hardening
InactiveUS20160160077A1Enhance or speed the refilling of the build regionIncreased formationManufacturing enclosuresLayered productsPolymer scienceCationic polymerization
A three dimensional object includes (a) a light polymerized first component; and (b) a second solidified component different from the first component. The object is preferably of a polymer blend formed from the first component and the second component, with the polymer blend as an interpenetrating polymer network, a semi-interpenetrating polymer network, or a sequential interpenetrating polymer network. In some preferred embodiments, the second component does not contain a cationic polymerization photoinitiator. In some preferred embodiments, the three dimensional object is produced by the process of continuous liquid interface production.
Owner:CARBON INC
CHEMICALLY MODIFIED POLYCATION POLYMER FOR siRNA DELIVERY
InactiveUS20070231392A1Reduced gene expressionReduce expressionPowder deliverySpecial deliveryIonic polymerizationIn vivo
The present invention provides a unique non-viral carrier for nucleic acid delivery in vitro and in vivo, and methods of using thereof.
Owner:ABBOTT LAB INC
Topcoat compositions, substrates containing a topcoat derived therefrom, and methods of preparing the same
InactiveUS6866383B2Reduce bleedingGood outdoor durabilityDuplicating/marking methodsSynthetic resin layered productsPolymerChemistry
This invention relates to an ink-receptive composition, including: (a) a filler; (b) a binder having a Tg of less than 30° C.; and (c) a cationic polymer; wherein the composition, when coated on a substrate, forms an ink-receptive coating which accepts ink loading greater than about 300%. The coating compositions provide a printable surface receptive to high loading of ink-jet inks which do not crack at loading in excess of 300%, and in one embodiment, do not crack at loading up to about 400%. In addition, the print shows superior liquid resistance and the print quality of the inks is improved and a reduction in bleeding of colors occurs. Also, printed article have outdoor durability especially those with overlaminates.
Owner:AVERY DENNISON CORP
Highly charged microcapsules
InactiveUS20080317795A1Cosmetic preparationsToilet preparationsCationic polymerizationCombinatorial chemistry
The invention encompasses compositions containing sol-gel microcapsules that are highly positively charged. The sol-gel capsules generally contain additives. The invention also encompasses methods for producing highly charged microcapsules using cationic additives which can include cationic polymers. The methods allow for the encapsulation of polar or non-polar active ingredients.
Owner:AQUEA SCI CORP
Hydrophilic Interpenetrating Polymer Networks Derived From Hydrophobic Polymers
InactiveUS20100010114A1High mechanical strengthReduce coefficient of frictionCosmetic preparationsImpression capsHydrophobic polymerThermoplastic elastomer
A composition of matter comprising a water-swellable IPN or semi-IPN including a hydrophobic thermoset or thermoplastic polymer and an ionic polymer, articles made from such composition and methods of using such articles. The invention also includes a process for producing a water-swellable IPN or semi-IPN from a hydrophobic thermoset or thermoplastic polymer including the steps of placing an ionizable monomer solution in contact with a solid form of the hydrophobic thermoset or thermoplastic polymer; diffusing the ionizable monomer solution into the hydrophobic thermoset or thermoplastic polymer; and polymerizing the ionizable monomers to form a ionic polymer inside the hydrophobic thermoset or thermoplastic polymer, thereby forming the IPN or semi-IPN.
Owner:BIOMIMEDICA
Water filter materials and water filters containing a mixture of microporous and mesoporous carbon particles
InactiveUS20050279696A1Reduce bacteriaReduce virusMembrane filtersLoose filtering material filtersWater filterActivated carbon filtration
A filter and filter material for providing or treating potable water is provided. The filter includes a housing having an inlet and an outlet, a filter material disposed within the housing, the filter material formed at least in part from a mixture of a plurality of mesoporous and microporous activated carbon particles. Preferably, at least some of the mesoporous activated carbon filter particles are coated with a cationic polymer, and even more preferably, at least some of the particles are coated with a cationic polymer and silver or a silver containing material. Kits comprising filters and information relating to the reduction, killing or removal of bacteria, viruses, microbials, and TTHM are also provided.
Owner:PUR WATER PURIFICATION PRODUCTS INC +2
Display device and method for production thereof
InactiveUS20100277684A1Reduce displayImpact resistanceLamination ancillary operationsElectroluminescent light sourcesAdhesiveRefractive index
The present invention provides a display device in which the adhesive for bonding the display panel and the substrate to each other is prevented from remaining as an uncured portion, and a method for production thereof. The present invention provides: a display device comprising a display panel, a substrate disposed on a display side, and an adhesive layer via which the display panel and the substrate are bonded to each other, wherein the adhesive layer contains a cationically polymerized resin; and the method for production thereof. The adhesive layer more preferably has a refractive index corresponding to that of a member adjacent to the adhesive layer.
Owner:SHARP KK
Personal Care Composition Comprising a Synthetic Cationic Polymer
A personal care composition that comprises a synthetic random polymer comprising a net positive charge; said synthetic random polymer comprising an acrylamide monomer unit; and a cationic monomer unit comprising 3 or more positive charges; wherein said synthetic random polymer comprises a ratio of said acrylamide monomer unit to said cationic monomer unit comprising from about 55:45 to about 97:3; and a surfactant component; and an aqueous carrier.
Owner:THE PROCTER & GAMBLE COMPANY
Liquid laundry detergent comprising cationic silicone block copolymers
InactiveUS7273837B2Increase deposition rateGood colorInorganic/elemental detergent compounding agentsCationic surface-active compoundsAminosilochromeCationic polymerization
The invention is directed to a liquid laundry detergent composition comprising at least one detergent ingredient selected from the group consisting of anionic surfactant, zwitterionic surfactant, amphoteric surfactant, and mixtures thereof; a coacervate phase forming cationic polymer; and one or more fabric care ingredients selected from the group consisting of one or more cationic silicone polymers comprising one or more polysiloxane units and one or more nitrogen moieties; one or more amino silicone polymers; one or more nitrogen-free silicone polymers; and mixtures thereof; and a liquid carrier for providing cleaning and fabric care benefits. A process for preparing such compositions, a method for treating substrates, a method for providing certain fabric care benefits and the use of such compositions are also described.
Owner:THE PROCTER & GAMBLE COMPANY +1
Multi-layer golf ball providing improved speed
InactiveUS20050261424A1Increase in hardness differenceReduce hardness differenceGolf ballsSolid ballsInter layerDriver/operator
The present invention is directed to a multi-layer golf ball comprising at least one core or core layer, at least one intermediate layer, and at least one cover layer. The core has a diameter of about 1.20 to about 1.56 in. and a PGA compression of about 40 to about 90. The intermediate layer comprises a modified ionomeric polymer, and it has a thickness of about 0.01 to about 0.10 in. and a Shore D hardness of about 30 to about 70. The cover layer has a Shore D hardness of about 40 to about 75. The multi-layer golf balls of the present invention provide high driver ball speed and / or a high Coefficient of Restitution, while maintaining excellent shot feel.
Owner:TAYLOR MADE GOLF
Ionic polymer membranes
InactiveUS20060049102A1Stable materialLarge specific surface areaCellsFatty/oily/floating substances removal devicesCarboxylic acidStructural unit
Compositions and processes are disclosed for economical separation of fluid mixtures. Broadly, the present invention discloses ionic polymer compositions that are useful for perm-selective membrane separations. More particularly, ionic polymers of the invention comprise a plurality of repeating structural units having as a constituent part thereof organic ionic moieties consisting of nitrogen containing anions and / or cations. In the form of non-porous membranes, ionic polymers of the invention facilitate recovery of purified organic and inorganic products from fluid mixtures by means of perm-selective membrane separations. The present invention also provides methods for forming the ionic polymers, for example by treating selected nitrogen-containing organic polymers with acids, or treating a polymeric material comprising a plurality of carboxylate groups with an amine. Ionic polymer compositions of the invention are particularly useful for simultaneous recovery of a permeate product of an increased concentration, and a desired non-permeate stream, from a fluid mixture containing at least two compounds of different boiling point temperatures.
Owner:BP CORP NORTH AMERICA INC +1
Methods and compositions based on inhibition of cell invasion and fibrosis by anionic polymers
Owner:TRIAD
Cationically polymerizable pigmented composition
InactiveUS6166100AGood dispersibilityMaintain good propertiesOrganic chemistryFilm/foil adhesivesEpoxyPolymer science
A cationically polymerizable pigmented composition comprising (A) a cationically polymerizable binder component containing at least one resin or compound selected from the group consisting of (A-1) a cationically polymerizable acrylic resin consisting of a copolymer of (a) a (meth) acrylic ester monomer having C6-31 aliphatic hydrocarbon group, (b) a polymerizable unsaturated monomer containing a polymerizable unsaturated group and at least one cationically polymerizable moiety selected from the group consisting of an epoxy group and an oxetane ring, and optionally (c) other polymerizable unsaturated monomer, and (A-2) a fatty acid-modified epoxy compound containing C6-32 aliphatic hydrocarbon group and epoxy group, (B) a cationic polymerization initiator initiating polymerization by irradiation or heating, and (C) a color pigment.
Owner:KANSAI PAINT CO LTD
Microencapsulation process and product
A composition comprising a core material, having a taste value and a polymeric coating. The polymeric coating substantially surrounds the core material and comprises a cationic polymer and optionally an anionic polymer. The polymeric coating has a uniform thickness ranging from 2 μm to 20 μm. The composition provides release of a portion of the core material which is taste masked over a time period ranging from 0.5 minute to 2 minutes in the oral cavity and provides a modified-release of the remaining core material in a gastrointestinal tract.
Owner:SPI PHARMA
Atom or group transfer radical polymerization
A polymerization process comprising initiating a first polymerization of monomers using an initiator functionalized with an ATRP initiating site, wherein the first polymerization is selected from the group of cationic polymerization, anionic polymerization, conventional free radical polymerization, metathesis, ring opening polymerization, cationic ring opening polymerization, and coordination polymerization to form a macroinitiator comprising an ATRP initiating site and further initiating an ATRP polymerization of radically polymerizable monomers using the macroinitiator comprising an ATRP initiating site. Novel block copolymers may be formed by the disclosed method.
Owner:CARNEGIE MELLON UNIV
Hair conditioning composition containing a non-guar galactomannan polymer derivative
A hair conditioning composition comprising:a) from about 0.01 wt. % to about 10 wt. % of a non-guar galactomannan polymer derivative having a mannose to galactose ratio of greater than 2:1 on a monomer to monomer basis, said non-guar galactomannan polymer derivative selected from the group consisting of a cationic non-guar galactomannan polymer derivative and an amphoteric non-guar galactomannan polymer derivative having a net positive charge;i. wherein said non-guar galactomannan polymer derivative has a molecular weight from about 1,000 to about 10,000,000; andii. wherein said non-guar galactomannan polymer derivative has a cationic charge density from about 0.7 meq / g to about 7 meq / g;b) a conditioning agent selected from the group consisting of cationic surfactants, cationic polymers, nonvolatile silicones, nonvolatile hydrocarbons, saturated C14 to C22 straight chain fatty alcohols, nonvolatile hydrocarbon esters, and mixtures thereof; andc) wherein said hair conditioning composition is substantially free of an anionic surfactant.
Owner:THE PROCTER & GAMBLE COMPANY
Polynucleotide delivering complex for target cell
InactiveUS8759103B2Good biocompatibilityStrong physiological functionSsRNA viruses negative-sensePeptide/protein ingredientsNucleotidePolynucleotide
The present invention provides a polynucleotide delivery system including a cationic polymer to which a rabies virus glycoprotein (RVG) peptide is bound, wherein the cationic polymer includes a biodegradable bond, and a method of delivering polynucleotides to a target cell by using the delivery system.
Owner:POSTECH ACAD IND FOUND
Hydrophobic and Hydrophilic Interpenetrating Polymer Networks Derived from Hydrophobic Polymers and Methods of Preparing the Same
ActiveUS20120045651A1High mechanical strengthFacilitate direct bondImpression capsSurgical adhesivesPolymer scienceHydrophobic polymer
A composition of matter comprising a hydrophobic or hydrophilic (or both) interpenetrating polymer network containing a non-ionic / ionic polymer and a hydrophobic thermoset or thermoplastic polymer, articles made from such composition and methods of preparing such articles. The invention also includes a process for preparing a hydrophobic / hydrophilic IPN or semi-IPN from a hydrophobic thermoset or thermoplastic polymer including the steps of placing an non-ionizable / ionizable monomer solution in contact with a hydrophobic thermoset or thermoplastic polymer; diffusing the monomer solution into the hydrophobic thermoset or thermoplastic polymer; and polymerizing the monomers to form a penetrating polymer inside the hydrophobic thermoset or thermoplastic polymer, thereby forming the IPN or semi-IPN.
Owner:HYALEX ORTHOPAEDICS INC
Method of improving performance of ultrafiltration or microfiltration membrane process in landfill leachate treatment
A method of processing landfill leachate by use of a membrane separation process is disclosed. Specifically, the following steps are taken to process landfill leachate: collecting landfill leachate in a receptacle suitable to hold said landfill leachate; treating said landfill leachate with one or more water soluble polymers, wherein said water soluble polymers are selected from the group consisting of: amphoteric polymers; cationic polymers; zwitterionic polymers; and a combination thereof; optionally mixing said water soluble polymers with said landfill leachate; passing said treated landfill leachate through a membrane, wherein said membrane is an ultrafiltration membrane or a microfiltration membrane; and optionally back-flushing said membrane to remove solids from the membrane surface.
Owner:ECOLAB USA INC
Nanoemulsion containing nonionic polymers, and its uses
These objects and others may be accomplished with the present invention, the first embodiment of which provides an oil-in-water nanoemulsion, which includes:an oily phase dispersed in an aqueous phase;(i) at least one amphiphilic lipid selected from the group including nonionic amphiphilic lipids, anionic amphiphilic lipids, and combinations thereof; and(ii) at least one water-soluble nonionic polymer selected from the group including homopolymers and copolymers of ethylene oxide; polyvinyl alcohols; homopolymers and copolymers of vinylpyrrolidone; homopolymers and copolymers of vinylcaprolactam; homopolymers and copolymers of polyvinyl methyl ether; neutral acrylic homopolymers and copolymers; C1–C2 alkyl celluloses and their derivatives; C1–C3 alkyl guar; C1–C3 hydroxyalkyl guar; and combinations thereof;wherein a ratio of the weight of the oily phase to the weight of the amphiphilic lipid (i) ranges from 1.2 to 10;and wherein the oily phase includes oil globules having a number-average size of less than 100 nm. The nanoemulsion obtained is preferably transparent and stable on storage. It may form a composition for topical, preferably cosmetic or dermatological compositions, pharmaceutical compositions and ophthalmological compositions.
Owner:LOREAL SA
Radiation curable resin composition and rapid three dimensional imaging process using the same
ActiveUS20100304088A1High modulusImprove toughnessAdditive manufacturing apparatusOrganic chemistryPolymer scienceIonic polymerization
The invention relates to a radiation curable resin composition comprising a cationically polymerizable component, a cationic photoinitiator, a hydroxy component, an impact modifier and wherein the resin composition after full cure has a modulus of >2 GPa; a yield stress<70 MPa; and a K1c value>1.3 MPa. (m)1 / 2 or an Izod value>0.45 J / cm. The resin composition can preferably be used in the preparation of three dimensional objects.
Owner:STRATSYS INC
Methods for the purification of contaminated waters
InactiveUS20050061750A1Type of reductionReduce the presence of impuritiesSedimentation separationMultistage water/sewage treatmentContaminated waterChemistry
The present invention describes a method for the purification of waters containing high levels of contaminants by sequentially intermixing with the contaminated water a first anionic polymer, a cationic polymer, and a second anionic polymer, and then separating the contaminants from the water.
Owner:POLYMER VENTURES
Well Treatment with Ionic Polymer Gels
Methods comprising preparing an aqueous mixture of an anionic polymer, a charge screening surfactant, and a borate crosslinker, wherein the mixture has a conductivity less than 10 mS / cm, injecting the mixture down a wellbore, and gelling the mixture. An embodiment of the aqueous mixture can also include tetramethylammonium chloride as a clay stabilizer and a metal crosslinker such as a complex of zirconium and an amino acid ligand system. An embodiment can effectively provide borate crosslinking of an anionic polymer in a low-ionic-strength fluid system, without sacrificing ultimate gel strength or thermal persistence of the metal crosslinked polymer.
Owner:SCHLUMBERGER TECH CORP
Polycationic water soluble copolymer and method for transferring polyanionic macromolecules across biological barriers
The present provides a carrier molecule for transporting a polyanioic macromolecule such as a nucleic acid across a biological barrier of a cell. The carrier has a biocompatible backbone polymer with two or more polycationic polymer fragments covalently linked. In one embodiment, the backbone polymer is polyethylene glycol (PEG) and the polycationic polymer is polyethylenimine (PEI). The copolymer carrier molecule can be complexed with a polyanionic macromolecule such as a nucleic acid (NA). The NA / copolymer complex is stable in biological conditions by forming a special coreshell-like micelle structure. The nucleic acid can be rapidly released from the complex when biodegradation linker are used to bind the polycationic polymer fragments to the polymer backbone. The carriers and complexes of the invention can be used tin methods of delivering the polycainonic macromolecules to cells both in vitro and in vivo.
Owner:GENTA SALUS
Water soluble crosslinked polymers
InactiveUS20080312174A1Bioreactor/fermenter combinationsBiological substance pretreatmentsCancer cellPolyethylene glycol
Compositions for siRNA delivery are described which include water soluble degradable crosslinked cationic polymers having a water soluble polyethylene glycol component, a cationic polyethyleneimine component and a degradable unit component. The composition may be used to deliver siRNA to cells, particularly cancer cells. The composition may be applied to a solid surface such as a multiwell plate so that the delivery of siRNA may be carried out on the solid surface.
Owner:NITTO DENKO CORP
Composition comprising a surface deposition enhancing cationic polymer
InactiveUS20060052272A1Inorganic/elemental detergent compounding agentsOrganic detergent compounding agentsOligomerIonic polymerization
The present invention relates to a detergent auxiliary composition comprising: (i) a liquid or liquefiable active component; and (ii) a water-insoluble solid support component and (iii) a water-soluble and / or water dispersible encapsulating material; and (iv) optionally one or more adjunct components, characterised in that the composition further comprises (v) a surface deposition enhancing cationic polymer or oligomer having cationic groups such that fewer than 50% are de-activated when a 1% by weight solution of the polymer or oligomer (prepared in deionised water and then adjusted to pH 7.0 with sodium carbonate or citric acid) is stored at 25° C. for ten days (ten day storage test), wherein the surface deposition enhancing cationic polymer is adsorbed onto the water-insoluble solid support component, and wherein the water-soluble and / or water dispersible encapsulating material encapsulates the liquid or liquefiable active component, the water-insoluble solid support component and the surface deposition enhancing cationic polymer.
Owner:THE PROCTER & GAMBLE COMPANY
Multilayer structure including an active electrochemical material and ionic polymer in a electrochemical cell
InactiveUS6986967B2Minimize exposureElectrode manufacturing processesFinal product manufactureEngineeringLithium-ion battery
Multilayer articles, particularly multilayer articles having electrical or ionic conductivity, are made using an improved melt extrusion process. The process includes a combination step in which a macroscopically homogeneous mass is formed prior to introduction into an extruder. The multilayer article may include an electrode layer and a separator layer that are extruded onto a metal current collector. Such structures are particularly useful in lithium-ion batteries.
Owner:EI DU PONT DE NEMOURS & CO
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