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Cationic Polymers patents

      

This page is updated frequently with new Cationic Polymers-related patent applications.




 Lipocationic polymers and uses thereof patent thumbnailLipocationic polymers and uses thereof
Polymers produced by ring opening polymerization which comprises an amino group that can be used in compositions to deliver a nucleic acid such as a mirna or a sirna. In some embodiments, compositions which comprise the polymers described herein and a nucleic acid are also provided herein.
The Board Of Regents Of The University Of Texas System


 Antimicrobial polymers formed by bulk polyaddition patent thumbnailAntimicrobial polymers formed by bulk polyaddition
Cationic antimicrobial polymers have been synthesized by a bulk addition polymerization of a nucleophilic agent comprising two tertiary amines and an electrophilic agent that comprises two leaving groups and an aromatic ring between the leaving groups. The reaction solvent for the polymerization is chosen to allow precipitation of the cationic polymer at the polymerization temperature, thereby limiting molecular weight.
Agency For Science, Technology And Research


 Engineering synthethic brain penetrating gene vectors patent thumbnailEngineering synthethic brain penetrating gene vectors
A synthetic gene delivery platform with a dense surface coating of hydrophilic and neutrally charged peg, capable of rapid diffusion and widespread distribution in brain tissue, and highly effective gene delivery to target cells therein has been developed. Nanoparticles including nucleic acids, are formed of a blend of biocompatible hydrophilic cationic polymers and they hydrophilic cationic polymer conjugated to hydrophilic neutrally charged polymers such as polyethylene glycol.
The Johns Hopkins University


 Condensation polymers for antimicrobial applications patent thumbnailCondensation polymers for antimicrobial applications
A number of cationic antimicrobial polymers have been synthesized by a condensation polymerization in bulk. The initial polymer formed has backbone tertiary nitrogens, which are subsequently quaternized using a suitable quaternizing agent (e.g., alkyl halide).
Agency For Science, Technology And Research


 Cationic polymer systems for selective bacterial capture patent thumbnailCationic polymer systems for selective bacterial capture
A device and methods of use thereof for isolating one or more microorganisms from a biological sample, the device comprising a polymeric surface having one or more cationic polymers covalently grafted thereto, wherein the one or more cationic polymers have a selective affinity for the one or more microorganisms.. .
The Johns Hopkins University


 Cleaning compositions containing cationic polymers in an aes-enriched surfactant system, and methods of making and using same patent thumbnailCleaning compositions containing cationic polymers in an aes-enriched surfactant system, and methods of making and using same
The present invention relates to cleaning composition, preferably a laundry detergent composition, comprising a cationic polymer in an aes-enriched surfactant system for enhanced suds reduction or removal during the rinse cycle with little or no impact on suds volume during the wash cycle.. .
The Procter & Gamble Company


 Methods of preparing polyelectrolyte complex nanoparticles patent thumbnailMethods of preparing polyelectrolyte complex nanoparticles
The presently disclosed subject matter provides methods for continuously generating uniform polyelectrolyte complex (pec) nanoparticles comprising: flowing a first stream comprising one or more water-soluble polycationic polymers at a first variable flow rate into a confined chamber; flowing a second stream comprising one or more water-soluble polyanionic polymers at a second variable flow rate into the confined chamber; and impinging the first stream and the second stream in the confined chamber until the reynolds number is from about 1,000 to about 20,000, thereby causing the one or more water-soluble polycationic polymers and the one or more water-soluble polyanionic polymers to undergo a polyelectrolyte complexation process that continuously generates pec nanoparticles. Compositions produced from the presently disclosed methods and a device for producing the compositions are also disclosed..
The Johns Hopkins University


 Electrospun cationic nanofibers and methods of making and using the same patent thumbnailElectrospun cationic nanofibers and methods of making and using the same
Methods of making polycationic nanofibers by grafting cationic polymers onto electrospun neutral nanofibers and polycationic nanofibers produced by the methods are provided herein. In addition, methods of using the polycationic nanofibers to reduce inflammation, to adsorb anionic compounds such as heparin or nucleic acids, to inhibit the growth of microbes or inhibit the formation of a biofilm are also provided.
Duke University


 Conditioning composition for keratin fibres patent thumbnailConditioning composition for keratin fibres
The present invention relates to a conditioning composition for keratin fibres especially human hair comprising particular cationic polymers and a cationic silicone compound. The present inventor has surprisingly found out that an aqueous hair conditioning composition comprising at least two cationic polymers, one being a cationic polymer with multiple cationic sites and with multiple ester groups in its molecule and the other cationic polymer is being a cellulose derivative, and a cationic or cationizable silicone improves hair combability, smoothness shine, elasticity and more interestingly hair treated with such a composition has volume and body and excellently manageable..
Kao Germany Gmbh


 Cleaning and removal of wax deposits in oil and gas wells using cationic polymers patent thumbnailCleaning and removal of wax deposits in oil and gas wells using cationic polymers
The present invention generally relates to methods for removing deposits in an oil or gas well by contacting the annular fluid in a batch-wise method with an effective amount of a composition comprising a water-soluble copolymer. These methods are advantageous because they can be used as needed to improve well operation.
Ecolab Usa Inc.


Antimicrobial polymers formed by bulk polyaddition

Cationic antimicrobial polymers have been synthesized by a bulk addition polymerization of a nucleophilic agent comprising two tertiary amines and an electrophilic agent that comprises two leaving groups and an aromatic ring between the leaving groups. The reaction solvent for the polymerization is chosen to allow precipitation of the cationic polymer at the polymerization temperature, thereby limiting molecular weight.
Agency For Science, Technology And Research

Cationic copolymers

The present invention relates to cationic copolymers, a process for the production of these cationic copolymers and the use of these cationic copolymers as dispersants for geopolymer binder systems. These cationic copolymers where the cationic charge is due to the presence of certain cyclic and/or polycationic groups are stable towards hoffmann elimination that would otherwise occur at very high ph values.
Construction Research & Technology, Gmbh

Method for separating and concentrating target substance using novel cationic graft polymer

The purpose of the present invention is to provide a method for separating and concentrating a target substance as an alternative to existing cationic polymers, and a kit for implementing this method.. .
Nitto Boseki Co., Ltd.

Methods for making water based cationic polymers for ink, coating, and film applications

The present invention provides a process for producing a durable, external surfactant free, cationic, water based jet ink polymer which when formulated into an ink, coating or film that results in a excellent adhesion to metal or plastic substrates. The hybridized copolymer comprises a hydrophobic functional polymeric backbone comprising a functional vinylchloride-containing polymer portion having an average molecular weight of from 15,000 to 200,000 g/mole and at least one polymer portion selected from the group consisting of a functional polyolefin and a functional polysiloxane.
Penn Color, Inc.

Cationic materials and formulations for drug delivery

cationic polymers are provided for delivering anionic active agents, preferably in the form or nanoparticles and other nanostructures. The polymer can be a polycation homopolymer or a copolymer containing a polycation block.
The Brigham And Women's Hospital, Inc.

Antimicrobial guanidinium and thiouronium functionalized polymers

Antimicrobial cationic polycarbonates and polyurethanes have been prepared comprising one or more pendent guanidinium and/or isothiouronium groups. Additionally, antimicrobial particles were prepared having a silica core linked to surface groups comprising a guanidinium and/or isothiouronium group.
Agency For Science, Technology And Research

Condensation polymers for antimicrobial applications

A number of cationic antimicrobial polymers have been synthesized by a condensation polymerization in bulk. The initial polymer formed has backbone tertiary nitrogens, which are subsequently quaternized using a suitable quaternizing agent (e.g., alkyl halide).
Agency For Science, Technology And Research

Cationic polymers as co-drugs for chemotherapeutic agents

A method for treating a biological cell is disclosed. The method administers a mixture of a chemotherapeutic drug and a co-drug that facilitates delivery of the chemotherapeutic drug to the nucleus of the cell.
Research Foundation Of The City University Of New York

Flocculation method

The present invention relates to a method for harvesting recombinant proteins from mammalian cell culture fluid. The method makes use of cationic polymers, non-ionic polymers and non-ionic surfactants..
Amgen Inc.

Antimicrobial cationic polycarbonates

Antimicrobial cationic polymers having one or two cationic polycarbonate chains were prepared by organocatalyzed ring opening polymerization. One antimicrobial cationic polymer has a polymer chain consisting essentially of cationic carbonate repeat units linked to one or two end groups.
Agency For Science, Technology And Research

Mucus penetrating gene carriers

Nanoparticles gene carriers, particularly nanoparticle gene carriers which exhibit increased rates of diffusion through cystic fibrosis (cf) mucus, as well as methods of making and using thereof, are described herein. The nanoparticle gene carriers are formed from a nucleic acid complexed to one or more biocompatible, polycationic polymers.
The Johns Hopkins University

Lipocationic polymers and uses thereof

Polymers produced by ring opening polymerization which comprises an amino group that can be used in compositions to deliver a nucleic acid such as a mirna or a sirna. In some embodiments, compositions which comprise the polymers described herein and a nucleic acid are also provided herein.
The Board Of Regents Of The University Of Texas System

Delivery system for functional nucleases

Compositions, methods, strategies, kits, and systems for the supercharged protein-mediated delivery of functional effector proteins into cells in vivo, ex vivo, or in vitro are provided. Compositions, methods, strategies, kits, and systems for delivery of functional effector proteins using cationic lipids and cationic polymers are also provided.
President And Fellows Of Harvard College

Formulations and materials with cationic polymers

This invention provides fluid formulations and materials produced therefrom for repairing dental and bone defects, processes for the production of the fluid formulations and materials, and to uses of these formulations and materials. In particular, the invention provides the use cationic polymers such as polylysine in these formulations and materials, and the advantageous properties derived therefrom which include mechanical and antibacterial properties..

Use of a dual polymer system for enhanced water recovery and improved separation of suspended solids and other substances from an aqueous media

A method uses anionic and cationic polymers added in, any order or simultaneously, to aqueous media for the removal of substances. The sequential addition of the two biopolymers, anionic xanthan, followed by cationic chitosan, causes the rapid formation of very large and cohesive fibrillar aggregates that may exhibit high solids to liquid ratios and that quickly settle out from the aqueous media.
Halosource, Inc.

Cleaning compositions containing cationic polymers, and methods of making and using same

The present invention relates to cleaning composition, preferably a laundry detergent composition, comprising a cationic polymer capable of improving the overall sudsing profile of such cleaning composition.. .
The Procter & Gamble Company

Process for the manufacture of paper and paperboard

Process for the manufacture of paper and paperboard the present invention relates to a process of making paper or paperboard in which a cellulosic thin stock is provided and subjected to one or more shear stages and then drained and a moving screen to form a sheet which is dried, wherein the process employs a retention system which is applied to the thin stock, said retention system comprising as components i) a blend of different cationic polymers and ii) a microparticulate material, in which the blend of cationic polymers comprises, a) a cationic polymer having a charge density of from 0.5 and below 3 meq per gram and a molar mass of greater than 700,000 da, which cationic polymer is selected from polymers containing vinyl amine units and polyethylenimine, b) a cationic polymer having a charge density of below 3 meq per gram and an intrinsic viscosity of at least 3 dl/g, wherein one of the components of the retention system is dosed into the thin stock after the final shearing stage and the other is dosed into the thin stock before the final shearing stage.. .
Basf Se

Cleaning composition containing cationic polymers and methods of making and using same

A cleaning composition, preferably a laundry detergent composition, comprising a cationic polymer with enhanced suds reduction or removal during the rinse cycle with little or no impact on suds volume during the wash cycle. Such composition may be further characterized by reduced fabric whiteness loss after repeated wash cycles.
The Procter & Gamble Company

Cleaning composition containing cationic polymers and methods of making and using same

Cleaning composition, preferably a laundry detergent composition, comprising a cationic polymer that may have enhanced suds reduction or removal during the rinse cycle with little or no impact on suds volume during the wash cycle. Such composition may be further characterized by reduced fabric whiteness loss after repeated wash cycles.
The Procter & Gamble Company

Triazine cationic polymers and methods of use thereof

T, v, w, y and z are each independently selected from the group of substituents described herein, and x is a linker as further described herein. The present invention further provides compositions and conjugates including the compounds as well as methods of using these compounds including, but not limited to, methods of preventing, treating and/or diagnosing genetic disorders, such as muscular dystrophy, or non-genetic disorders as described herein..

Layer-by-layer approach to co-deliver dna and sirna via aunps: a potential platform for modifying release kinetics

A layer-by-layer (lbl) system, which alternately ionically complexes anionic aunps to two unique cationic polymers (disuifide-reducible and hydrolytically degradable) and two anionic nucleic acids, is disclosed.. .
The Johns Hopkins University

Multicomponent degradable cationic polymers

Degradable polymers were synthesized that self-assemble with dna to form particles that are effective for gene delivery. Small changes to polymer synthesis conditions, particle formulation conditions, and polymer structure provides significant changes to efficacy in a cell-type dependent manner.
The Johns Hopkins University

Textile treatment compounds and compositions

A cationic polymer is disclosed, represented by: a) wherein “p1” and “p2” represent portions of the cationic polymer to which the first functional group shown in a is bonded, or b) wherein “p” represents the remainder of the cationic polymer to which the second functional group shown in b is bonded, or the cationic polymer may comprise one or more of the first functional groups as shown in a and/or one or more of the second functional groups as shown in b where x represents an anion, typically chlorine. The cationic polymers are useful as textile softeners and for enhancing substantivity and durability of active compounds co-deposited onto textiles with the cationic polymers.
Devan Chemicals Nv

Hair care composition comprising cationic polymers and anionic particulates

Disclosed is a hair care composition comprising cationic polymers and anionic particulates. The composition of the present invention provides improved deposition of anionic particulates..
The Proctor & Gamble Company

Method for enhancing transport of semiconductor nanocrystals across biological membranes

Semiconductor nanoparticle complexes comprising semiconductor nanoparticles in association with cationic polymers are described. Also described are methods for enhancing the transport of semiconductor nanoparticles across biological membranes to provide encoded cells.
Life Technologies Corporation

Hydrophobic, cationic polymers for treating construction aggregates

The present invention provides methods, admixture compositions for treating clay-bearing aggregates used for construction purposes, and aggregate compositions for construction purposes. The clay-bearing aggregates are treated with a cationic copolymer made from two and preferably three different monomer components.
W. R. Grace & Co.-conn.

Agents for treating cystic fibrosis

The present invention relates to compositions comprising cationic polymers and their use in treating inflammatory lung diseases characterized by the recruitment of blood neutrophils in the airways favoring the formation of a thick, mucoid or mucopurulent sputum as found in cystic fibrosis.. .
Universite De Tours Francois Rabelais

Hair care products with enhanced care performance

Compositions for treating keratin fibers, in particular human hair, that significantly improving the conditioning properties, shine, and haptics include as essential ingredients cationic ammonia compounds, amidoamines, ester oils, cationic polymers, a selected amodimethicone, and sugar surfactants.. .
Henkel Ag & Co. Kgaa

Delivery of negatively charged proteins using cationic lipids

Compositions, methods, strategies, kits, and systems for the delivery of negatively charged proteins, protein complexes, and fusion proteins, using cationic polymers or lipids are provided. Delivery of proteins into cells can be effected in vivo, ex vivo, or in vitro.
President And Fellows Of Harvard College

Volumizing hair compositions containing styling polymers and polycationic polymers

Rinse-off of the volumizing compositions, having an acidic ph, and in the form of a lotion, gel or cream are disclosed. The compositions include one or more linear hairstyling polymers which exhibit polar behavior in acidic ph, such as polyvinylpyrrolidone, together with a selected group of polycationic hairstyling polymers, such as polyquaternium-37.
Kao Usa Inc.

New cationic polymers

New water soluble cationic copolymers derived from n-vinyl amide monomers and ethylenically unsaturated compounds bearing cationic groups.. .
Basf Se

Delivery system for functional nucleases

Compositions, methods, strategies, kits, and systems for the supercharged protein-mediated delivery of functional effector proteins into cells in vivo, ex vivo, or in vitro are provided. Compositions, methods, strategies, kits, and systems for delivery of funcational effector proteins using cationic lipids and cationic polymers are also provided.
President And Fellows Of Harvard College

Use of cationic lipids to deliver cas9

Compositions, methods, strategies, kits, and systems for the supercharged protein-mediated delivery of functional effector proteins into cells in vivo, ex vivo, or in vitro are provided. Compositions, methods, strategies, kits, and systems for delivery of functional effector proteins using cationic lipids and cationic polymers are also provided.
President And Fellows Of Harvard College

Hair preparations comprising hydroxy-terminated organopolysiloxane(s) and conditioner(s)

Cosmetic compositions which contain at least one conditioning agent selected from synthetic oils, mineral oils, plant oils, fluorinated or perfluorinated oils, natural or synthetic waxes, compounds of the ceramide type, carboxylic acid esters, silicones differing from the silicones of formulae (i), anionic polymers, nonionic polymers, cationic polymers, amphoteric polymers, cationic proteins, cationic protein hydrolysates, cationic interfacially active substances and mixtures thereof and at least one hydroxy-terminated organopolysiloxane of formula (i). The cosmetic compositions improve numerous properties of the body surfaces, in particular hair, treated therewith and, in addition to improved combability and improved handle, in particular lead to a reduction in the contact angle of the hair..
Henkel Ag & Co. Kgaa

Flocculation method

The present invention relates to a method for harvesting recombinant proteins from mammalian cell culture fluid. The method makes use of cationic polymers, non-ionic polymers and non-ionic surfactants..
Amgen Inc.

Glycogen-based cationic polymers

The present invention relates to glycogen-based cationic polymers, to complexes of the said cationic polymers with anionic compounds, to pharmaceutical compositions comprising the said complexes, and to the use of the said complexes for delivering or transfecting the said anionic compounds to a specific pharmacological target, such as, for instance an organ, a tissue or a cell.. .
Aziende Chimiche Riunite Angelini Francesco A.c.r.a.f. S.p.a.

Process for the manufacture of paper and paperboard

The present invention relates to a process of making paper or paperboard in which a cellulosic thin stock is provided and subjected to one or more shear stages and then drained and a moving screen to form a sheet which is dried, wherein the process employs a retention system which is applied to the thin stock, said retention system comprising as components i) a blend of different cationic polymers and ii) a microparticulate material, in which the blend of cationic polymers comprises, a) a cationic polymer having a charge density of at least 3 meq per gram and a molar mass of greater than 700,000 da, b) a cationic polymer having a charge density of below 3 meq per gram and an intrinsic viscosity of at least 3 dl/g, wherein one of the components of the retention system is dosed into the thin stock after the final shearing stage and the other is dosed into the thin stock before the final shearing stage.. .
Basf Se

Composition for the oxidation dyeing of keratin fibres, comprising particular fatty alcohols, a liquid fatty substance and a cationic polymer

The present invention relates to a composition for dyeing keratin fibres, comprising: one or more oxidation dyes; one or more basifying agents; one or more non-oxyalkylenated fatty substances that are liquid at room temperature in a content of less than or equal to 20% by weight relative to the total weight of the composition; one or more oxidizing agents; one or more oxyethylenated fatty alcohols with a number of oxyethylene units of greater than or equal to 10; one or more oxyethylenated fatty alcohols with a number of oxyethylene units of less than 10; one or more non-oxyethylenated fatty alcohols that are solid at room temperature; and one or more cationic polymers. The present invention also relates to a process for dyeing keratin fibres using such a composition, and also to a kit for preparing the said composition..
L'oreal

Cationic polymers comprising a hydrophobic group as deposition enhancers for pesticides and crop production chemicals

The present invention relates to the use of certain hydrophobically modified cationic polymers, prepared by polymerising an alkyl ester of acrylic acid or an alkyl ester of methacrylic acid, a nitrogen containing monomer; and an associative monomer; as deposition enhancers for pesticides and crop production chemicals, such as plant growth regulators, fertilizers and micronutrients, in aqueous solutions; an aqueous composition comprising these polymers and one or more pesticides and/or crop production chemicals, a process for preparing said aqueous composition, and the use of said composition for treatment of plants.. .

Vertical electrochromic display

A directly addressable display device comprising at least one pixel cell (1-9), each pixel cell (1-9) being arranged for displaying a symbol, which symbol is repeatedly switchable between an on-state and an off-state, wherein each pixel cell (1-9) comprises an electrochromic layer (110) comprising an electrochromic and electrochemically active organic polymer material being electrochemically switchable between two different visually detectable coloring states; a counter electrode layer (140) comprising an electronically conductive material, wherein said counter electrode layer (140) in the viewing direction of the display device is arranged behind said electrochromic layer (110); an electrolyte layer (130), which electrolyte layer (130) is solid and arranged spatially between, and in ionic contact with, said electrochromic layer (110) and said counter electrode layer (140); a symbol defining layer (120) which is electronically and ionically insulating, arranged in direct ionic contact with said electrochromic layer (110), and which comprises one or more openings (121-129) which encloses said electrolyte layer (130) and defines the shape of said symbols; wherein said electrolyte layer (130) comprises a composition comprising a polyelectrolyte selected from one or more cationic polymers, wherein the electrolyte is substantially free of small cations.. .

Cationic polymers and methods of providing antistatic properties to coating materials

Use of cationic polymers comprising quaternary nitrogen atoms as antistat in coating compositions, characterized in that the polymers are selected from the group consisting of compounds according to the formula (i), polydiallyldialkylamines and copolymers thereof, polyalkyleneimines, polyvinylimidazoles and copolymers thereof, and mixtures of these. The effect of the antistat is that dust adheres to a lesser degree to the coating of the composition.



Cationic Polymers topics:
  • Cationic Polymers
  • Cationic Polymer
  • Alkoxysilane
  • Carbon Atoms
  • Cosmetic Treatment
  • Cosmetic Co
  • Alkyl Group
  • Cancer Cells
  • Polysaccharides
  • Methacrylic Anhydride
  • Cancer Cell
  • Chondroitin Sulfate
  • Nanoparticle
  • Chondroitin
  • Nucleic Acids


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    This listing is a sample listing of patent applications related to Cationic Polymers for is only meant as a recent sample of applications filed, not a comprehensive history. There may be associated servicemarks and trademarks related to these patents. Please check with patent attorney if you need further assistance or plan to use for business purposes. This patent data is also published to the public by the USPTO and available for free on their website. Note that there may be alternative spellings for Cationic Polymers with additional patents listed. Browse our RSS directory or Search for other possible listings.


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