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Cationic Polymers

Cationic Polymers-related patent applications - as published by the U.S. Patent and Trademark Office (USPTO).


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Marine coatings
University Of Washington
June 22, 2017 - N°20170174907

Marine coatings including cationic polymers hydrolyzable to nonfouling zwitterionic polymers, coated marine surfaces, and methods for making and using the marine coatings.
Cross-linked polymer modified nanoparticles
Oregon Health And Science University
June 22, 2017 - N°20170173169

Disclosed herein are nanoconstructs comprising a nanoparticle, coated with additional agents such as cationic polymers, stabilizers, targeting molecules, labels, oligonucleotides and small molecules. These constructs may be used to deliver compounds to treat solid tumors and to diagnose cancer and other diseases. Further disclosed are methods of making such compounds and use of such compounds to treat or diagnose human ...
In-situ cross-linkable polymeric compositions and methods thereof
Cresilon, Inc.
June 08, 2017 - N°20170157286

A biocompatible polymeric composition for cross-linking in-situ in a wound is disclosed comprising 1) one or more polyanionic polymers such as alginates or hyaluronates, able to be cross-linked the surface of the wound and 2) one or more polycationic polymers such as chitosan or deae-dextran, that assists in the solidification process as well as speeds up hemostasis without the need for applying ...
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Nanocomposites of gold and polymers
Halliburton Energy Services, Inc.
May 25, 2017 - N°20170143639

A layer-by-layer (lbl) system, which alternately ionically complexes anionic aunps to two unique cationic polymers (disulfide-reducible and hydrolytically degradable) and two anionic nucleic acids, is disclosed.
Hair cosmetic composition
Hoyu Co., Ltd.
May 04, 2017 - N°20170119648

A hair color which achieves excellent texture consistently from during plain rinsing in the treatment with the hair color to the dry state after the treatment is provided includes a hair cosmetic composition containing (a) one or more cationic polymers, (b) one or more cationic surfactants with a counter ion which is chlorine or an alkyl sulfate, (c) one or ...
Biodegradable polymers, complexes thereof for gene therapeutics and drug delivery, and methods related thereto
Agency For Science, Technology And Research
April 27, 2017 - N°20170114182

A biodegradable cationic polymer is disclosed, comprising first repeat units derived from a first cyclic carbonyl monomer by ring-opening polymerization, wherein more than 0% of the first repeat units comprise a side chain moiety comprising a quaternary amine group; a subunit derived from a monomeric diol initiator for the ring-opening polymerization; and an optional endcap group. The biodegradable cationic polymers have ...
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Lipocationic polymers and uses thereof
The Board Of Regents Of The University Of Texas System
April 13, 2017 - N°20170100482

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. In some embodiments, these compositions are used to silence one or more genes ...
Antimicrobial polymers formed by bulk polyaddition
Agency For Science, Technology And Research
April 06, 2017 - N°20170094964

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. Quaternization ...
Engineering synthethic brain penetrating gene vectors
The Johns Hopkins University
March 30, 2017 - N°20170087253

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 ...
Condensation polymers for antimicrobial applications
Agency For Science, Technology And Research
March 16, 2017 - N°20170073471

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). The cationic polymers include polyamides, polycarbonates, polypolyureas and polyguanidiniums having a cationic repeat unit comprising the quaternary ammonium nitrogen as a backbone nitrogen. The ...
Cationic polymer systems for selective bacterial capture
The Johns Hopkins University
March 09, 2017 - N°20170067088

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.
Cleaning compositions containing cationic polymers in an aes-enriched surfactant system, and methods of making and ...
The Procter & Gamble Company
March 09, 2017 - N°20170066997

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.
Methods of preparing polyelectrolyte complex nanoparticles
The Johns Hopkins University
February 16, 2017 - N°20170042829

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 ...
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Conditioning composition for keratin fibres
Kao Germany Gmbh
February 09, 2017 - N°20170035682

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 ...
Cleaning and removal of wax deposits in oil and gas wells using cationic polymers
Ecolab Usa Inc.
February 02, 2017 - N°20170029691

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. The methods use a water-soluble copolymer comprised of an ...
Antimicrobial polymers formed by bulk polyaddition
Agency For Science, Technology And Research
December 29, 2016 - N°20160374335

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. Quaternization ...
Cationic copolymers
Construction Research & Technology, Gmbh
December 22, 2016 - N°20160369024

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 ...
Method for separating and concentrating target substance using novel cationic graft polymer
Nitto Boseki Co., Ltd.
December 22, 2016 - N°20160367979

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.
Methods for making water based cationic polymers for ink, coating, and film applications
Penn Color, Inc.
November 24, 2016 - N°20160340459

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 ...
Cationic materials and formulations for drug delivery
The Brigham And Women's Hospital, Inc.
November 24, 2016 - N°20160338970

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 polycations and polycation containing polymers can contain dicarboxylic acid ester units and units of (a-amino acid)-α, ω-alkylene diester units. The nanoparticles can ...
Antimicrobial guanidinium and thiouronium functionalized polymers
Agency For Science, Technology And Research
November 24, 2016 - N°20160338356

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. The cationic polymers and cationic particles can be potent antimicrobial agents against gram-negative microbes, gram-positive microbes, and/or fungi.
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