With Ethylenically Unsaturated Reactant Patents (Class 527/201)
  • Patent number: 9492271
    Abstract: Disclosed herein are synthetic silica-based ocular devices fabricated from a composite material comprising silica and a fibrillar protein, together with methods of making and using the ocular devices.
    Type: Grant
    Filed: February 8, 2011
    Date of Patent: November 15, 2016
    Assignee: REGENTS OF THE UNIVERSITY OF MINNESOTA
    Inventors: Alptekin Aksan, Allison Hubel, Eduardo Reategui
  • Patent number: 9273227
    Abstract: Waterborne aqueous-alcohol soluble protein compositions, methods of making the compositions, and applications thereof are disclosed. The dispersion compositions include protein, water, acid, and optionally an ester of a carboxylic acid. The methods of making the compositions including combining the protein, water, acid and optionally ester to form a dispersion without the benefit of alcohol. Applications include industrial and food applications, such as binders and coatings, for example paint binders or coatings for paper products and pharmaceuticals.
    Type: Grant
    Filed: March 6, 2013
    Date of Patent: March 1, 2016
    Assignee: POET RESEARCH, INC.
    Inventors: Leif Sedgewick Freeman, John Warrent Lawton, Jr., Melvin Glenn Mitchell, Marvin Lynn Mitchell, Laura Martin
  • Patent number: 8937025
    Abstract: One-part binder compositions are described that may include a protein and a crosslinking combination. The crosslinking combination may include at least a first crosslinking compound and a second crosslinking compound. The first and second crosslinking compounds are individually crosslinkable with each other and with the protein. Examples of the protein include soy protein. Fiber products and methods of making the fiber products are also described. The fiber products may include organic fibers, inorganic fibers, or both, in a cured thermoset binder based on solutions of the one-part binder compositions.
    Type: Grant
    Filed: November 15, 2011
    Date of Patent: January 20, 2015
    Assignee: Johns Manville
    Inventors: Mingfu Zhang, Jawed Asrar, Zhihua Guo
  • Patent number: 8927672
    Abstract: The present disclosure relates to a novel benzindocyanine compound for labeling biomolecules and a method for preparing the same.
    Type: Grant
    Filed: March 31, 2011
    Date of Patent: January 6, 2015
    Assignee: DKC Corporation
    Inventors: Jin Woo Park, Jong Joo Na, Doo-Young Chung
  • Patent number: 8809477
    Abstract: A wood-containing composite are described that may include a lignocellulosic material, and a formaldehyde-free binder in contact with at least a portion of the lignocellulose material. The binder is formed from a binder composition that includes a soy flour, a polymer, and a crosslinking agent, at least a portion of each of which are covalently crosslinked to each other in the binder. Also described are methods of making wood-containing composites by providing a pre-mixed, one-part binder composition of at least 60 wt. % soy flour, a polymer, and a crosslinking agent. The binder composition is applied to lignocellulosic material, and the combination may be heated at a temperature of about 100° C. or more to cure the binder composition into a binder. The cured binder has the soy protein, polymer, and crosslinking agent covalently bonded to each other.
    Type: Grant
    Filed: May 23, 2011
    Date of Patent: August 19, 2014
    Inventors: Mingfu Zhang, Philip Francis Miele, Jawed Asrar
  • Patent number: 8802075
    Abstract: The invention contemplates a copolymer which is a graft or block copolymer useful to change wettability and surface characteristics of biological surfaces. Methods for use of these formulations and coatings to change wettability and sterically stabilize, and lubricate biological surfaces in a subject, for example, in the treatment of dry eye syndrome, and to prevent adherence of unwanted proteins, for example in the treatment of contact lens intolerance, are provided.
    Type: Grant
    Filed: February 18, 2010
    Date of Patent: August 12, 2014
    Assignee: Eyeon Particle Sciences LLC
    Inventors: Eugene R. Cooper, David M. Kleinman, Andrew Loxley, Mark Mitchnick
  • Patent number: 8778626
    Abstract: A clickable cross-linker compound provides an easily scanned reporter ion for effective and efficient cross-linking and identification of intermolecular and intramolecular interactions of proteins and peptides.
    Type: Grant
    Filed: July 8, 2011
    Date of Patent: July 15, 2014
    Assignee: California Institute of Technology
    Inventors: Chang Ho Sohn, Jesse L. Beauchamp
  • Publication number: 20140182064
    Abstract: A graft polymer of polysaccharides or polypeptides or its respective derivatives, obtainable by free radical polymerization of A) a monomer selected from or a monomer mixture of (a) from 20 to 100% by weight of acrylic acid or methacrylic acid or of a mixture thereof or of the alkali metal, alkaline earth metal or ammonium salts thereof, (b) from 0 to 80% by weight of other monoethylenically unsaturated monomers which are copolymerizable with the monomers (a) and (c) from 0 to 5% by weight of monomers having at least 2 ethylenically unsaturated, nonconjugated double bonds in the molecule, in the presence of either B1) polysaccharides, oxidatively, hydrolytically or enzymatically degraded polysaccharides, oxidized hydrolytically degraded or oxidized enzymatically degraded polysaccharides, or such chemically modified degraded products, chemically modified mono-, oligo-or poly-saccharides or mixtures of the stated compounds and/or B2) polypeptides, their hydrolysates or enzymaticallydegraded and optionally chemi
    Type: Application
    Filed: May 25, 2012
    Publication date: July 3, 2014
    Applicant: LANXESS DEUTSCHLAND GMBH
    Inventor: Ma Song
  • Publication number: 20140163133
    Abstract: An object of the present invention is to provide a polymerizable composition capable of providing antimicrobial properties to ophthalmic and medical devices relatively inexpensively with ease, and an antimicrobial composition obtained by polymerizing the polymerizable composition. A polymerizable composition for ophthalmic or medical use comprising an epsilon-polylysine having (meth)acryloyl group is provided. The content of the epsilon-polylysine having (meth)acryloyl group in the polymerizable composition is preferably about 0.1 to 99% by weight, based on the whole amount of the composition. A coating agent for ophthalmic or medical use comprising the above polymerizable composition, an antimicrobial composition for ophthalmic or medical use obtained by polymerizing the above polymerizable composition, an ophthalmic or medical device comprising the antimicrobial composition, and a contact lens comprising the antimicrobial composition are also provided.
    Type: Application
    Filed: July 5, 2013
    Publication date: June 12, 2014
    Inventors: Bee Eng Mary CHAN, Chuncai ZHOU, Susanna Su Jan LEONG, Matthew Wook CHANG, Peng LI, Xiaobao QI, Mouad LAMRANI
  • Publication number: 20140154516
    Abstract: The invention is directed to adhesives derived from animal or plant proteins, particularly canola and spent hen proteins. The adhesives are prepared by extracting the proteins by pH shifting; and either treating the extracted proteins with urea or sodium dodecyl sulfate, or polymerizing the proteins to form a protein-polymer conjugate. The invention is also directed to a wood based product comprising pieces of wood based material joined or consolidated with the adhesives.
    Type: Application
    Filed: June 18, 2012
    Publication date: June 5, 2014
    Applicant: THE GOVERNORS OF THE UNIVERSITY OF ALBERTA
    Inventors: Jianping Wu, Chanchan Wang
  • Patent number: 8574881
    Abstract: The present invention provides dyes, reactive dyes and labeled reagents that may be used in the detection or quantification of desirable target molecules, such as proteins and nucleic acids. Dyes are provided that may be used free in solution where the binding of the dye to the target molecule provides signal generation. Dyes are also provided that comprise reactive groups that may be used to attach the dyes to probes that will bind to desirable target molecules. The novel dyes of the present invention have been modified by the addition of charged and polar groups to provide beneficial properties.
    Type: Grant
    Filed: June 17, 2009
    Date of Patent: November 5, 2013
    Assignee: Enzo Life Sciences, Inc.
    Inventors: Praveen Pande, Yuejun Xiang, Elazar Rabbani
  • Publication number: 20130281602
    Abstract: A thermo-responsive polymer covalently bound with a peptide, wherein the peptide comprises a peptide moiety that is able to self-assemble and a functional peptide moiety comprising a bioactive sequence, and compositions comprising such thermo-responsive polymer covalently bound with a peptide. Methods for the preparation of such thermo-responsive polymers covalently bound with a peptide and the use thereof for the preparation of hydrogels.
    Type: Application
    Filed: October 6, 2011
    Publication date: October 24, 2013
    Applicant: SOLVAY SA
    Inventors: Alberto Saiani, Aline Miller, Roland Callens, Laurent Jeannin, Wafa Moussa
  • Publication number: 20130203881
    Abstract: Disclosed are fast-curing, inexpensive corn-gluten resin compositions, methods for making them, methods for forming them into solid articles. In some embodiments, the resin composition includes corn meal gluten and a non-toxic organic acid.
    Type: Application
    Filed: July 19, 2011
    Publication date: August 8, 2013
    Inventors: Dara L. Woerdeman, Odelia Maron
  • Publication number: 20130102752
    Abstract: The present disclosure relates to a novel benzindocyanine compound for labeling biomolecules and a method for preparing the same.
    Type: Application
    Filed: March 31, 2011
    Publication date: April 25, 2013
    Applicant: DKC CORPORATION
    Inventors: Jin Woo Park, Jong Joo Na, Doo-Young Chung
  • Publication number: 20130072598
    Abstract: A thermoplastic biobased material-containing composition comprising chemically-modified feathers and/or dried distillers grains and a process for forming the thermoplastic biobased material-containing composition. More specifically, the thermoplastic biobased material-containing composition comprises one or more of the following chemically-modified biobased materials: (a) acylated biobased material having a % Acyl Content that is at least 3% and a % Weight Gain that is at least 1%, and; (b) etherified biobased material having a % Weight Gain that is at least 2%; and (c) graft polymerized biobased material having a % Monomer Conversion that is at least 40%, a % Grafting Efficiency that is at least 30%, and a % Grafting that is at least 10%.
    Type: Application
    Filed: March 19, 2012
    Publication date: March 21, 2013
    Applicant: Board of Regents of the University of Nebraska
    Inventors: Yiqi Yang, Narendra Reddy, Chunyan Hu, Jin Enqi
  • Publication number: 20130040357
    Abstract: The present invention relates to a hydrogel precursor formulation, its process of production as well as a kit comprising said formulation and a method of production of a hydrogel using said formulation. The precursor formulation comprises at least one structural compound, preferably vinyl sulfone (acrylated branched) poly(ethylene glycol), and at least one linker compound, preferably a peptide with two cysteines, wherein said structural compound and said linker compound are polymerizable by a selective reaction between a nucleophile and a conjugated unsaturated bond or group. The precursor formulation is in the form of a powder.
    Type: Application
    Filed: April 19, 2011
    Publication date: February 14, 2013
    Applicant: QGEL SA
    Inventors: Simone Rizzi, Matthias Lutolf
  • Publication number: 20130004450
    Abstract: A protein-acrylate copolymer contains at least one nitrogen containing acrylic monomer. The nitrogen containing acrylic monomer preferably contains a tertiary or quaternary amine group, and particularly a quaternary amine group. The protein-acrylate copolymer can be produced by reacting hydrolysed protein with at least one nitrogen containing acrylic monomer, preferably by free-radical polymerisation. The protein-acrylate copolymer is suitable for use in personal care or cosmetic products, particularly in hair care products where it can increase volume to hair.
    Type: Application
    Filed: March 25, 2011
    Publication date: January 3, 2013
    Applicant: Croda International PLC
    Inventors: Surinder Pall Chahal, Ian Robert Tooley, Neil Howard James, Charlotte Odette Camille Stricane
  • Publication number: 20120220691
    Abstract: Methods for synthesizing a methacrylate-derivatized type-I collagen in which methacrylic acid is reacted with a carboxylic acid activating reagent in the presence of a carbodiimide to form a methacrylic acid with an activated carboxylic acid group, which is then reacted with free amino groups on type-I collagen to form a collagen methacrylamide. Methacrylate-derivatized collagen, cross-linked collagens formed therefrom and products containing the cross-linked collagen are also disclosed.
    Type: Application
    Filed: September 29, 2011
    Publication date: August 30, 2012
    Applicant: RUTGERS, THE STATE UNIVERSITY OF NEW JERSEY
    Inventors: David Shreiber, Ian Gaudet
  • Publication number: 20120128536
    Abstract: The present disclosure relates to a molecularly imprinted structure for detection of a pentraxin protein and a method for preparing the same by synthesizing a reactive group-pentraxin protein ligand complex specifically reacting with the pentraxin protein and being polymerizable with a crosslink agent to detect a pentraxin protein by using the complex. The present disclosure also provides a chip for detection of a C-reactive protein and a method for preparing the same, the chip including a molecularly imprinted layer having excellent sensitivity to a C-reactive protein and an improved binding force to a metal substrate by using click chemistry.
    Type: Application
    Filed: November 16, 2011
    Publication date: May 24, 2012
    Applicant: Daegu Gyeongbuk Institute of Science and Technology
    Inventors: Sang Won Jeong, Eun Joo Kim, Hyun-Chul Kim, Se Geun Lee, Sung Jun Lee
  • Publication number: 20120077948
    Abstract: The invention relates to a method of making a polypeptide comprising an orthogonal functional group, said orthogonal functional group being comprised by an aliphatic amino acid or amino acid derivative, said method comprising providing a host cell; providing a nucleic acid encoding the polypeptide of interest; providing a tRNA-tRNA synthetase pair orthogonal to said host cell; adding an amino acid or amino acid derivative comprising the orthogonal functional group of interest, wherein said amino acid or amino acid derivative is a substrate for said orthogonal tRNA synthetase, wherein said amino acid or amino acid derivative has an aliphatic carbon backbone; and incubating to allow incorporation of said amino acid or amino acid derivative into the polypeptide of interest via the orthogonal tRNA-tRNA synthetase pair. The invention also relates to certain amino acids, and to polypeptides comprising same.
    Type: Application
    Filed: June 2, 2010
    Publication date: March 29, 2012
    Applicants: North Carolina State University, Medical Research Council
    Inventors: Duy P. Nguyen, Heinz Neumann, Alexander Deiters, Jason Chin, Hrvoje Lusic
  • Publication number: 20120046737
    Abstract: Implantable biocompatible polymeric medical devices include a substrate with an acid or base-modified surface which is subsequently modified to include click reactive members.
    Type: Application
    Filed: February 19, 2010
    Publication date: February 23, 2012
    Inventors: Nadya Belcheva, Ferass Abuzaina, Amin Elachchabi, Mbiya Kapiamba, Ahmad Robert Hadba
  • Publication number: 20120040430
    Abstract: The present invention provides dyes, reactive dyes and labeled reagents that may be used in the detection or quantification of desirable target molecules, such as proteins and nucleic acids. Dyes are provided that may be used free in solution where the binding of the dye to the target molecule provides signal generation. Dyes are also provided that comprise reactive groups that may be used to attach the dyes to probes that will bind to desirable target molecules. The novel dyes of the present invention have been modified by the addition of charged and polar groups to provide beneficial properties.
    Type: Application
    Filed: June 17, 2009
    Publication date: February 16, 2012
    Applicant: ENZO LIFE SCIENCES, INC. C/O ENZO BIOCHEM, INC.
    Inventors: Yuejun Xiang, Praveen Pande, Rajesh Khazanchi, Elazar Rabbani, Dakai Liu, Wei Cheng
  • Publication number: 20120041167
    Abstract: A poly(glutamic acid)-drug conjugate with an amino acid as a linker, and nontoxic pharmaceutically acceptable salt thereof, are provided in the present invention. The drug is gemcitabine, paclitaxel or docetaxel. The ?-carboxyl group in the amino acid is linked to 5?-hydroxy in gemcitabine molecule or linked to 2?-hydroxy in paclitaxel (docetaxel) molecule via an ester linkage. The ?-amino group in the amino acid is linked to the carboxyl group in the poly-(L-glutamic acid) molecule via an amide linkage. The content of gemcitabine in the conjugate is 5-30% in weight, and the content of paclitaxel or docetaxel is 10-40% in weight.
    Type: Application
    Filed: November 7, 2007
    Publication date: February 16, 2012
    Inventors: Bohua Zhong, Jianxin Zhang, Lanfu Chen
  • Publication number: 20120028285
    Abstract: A clickable cross-linker compound provides an easily scanned reporter ion for effective and efficient cross-linking and identification of intermolecular and intramolecular interactions of proteins and peptides.
    Type: Application
    Filed: July 8, 2011
    Publication date: February 2, 2012
    Inventors: Chang Ho Sohn, Jesse L. Beauchamp
  • Publication number: 20120020911
    Abstract: The present invention relates to biodegradable scaffolds composed of a naturally-occurring protein backbone cross-linked by a synthetic polymer. Specifically, the present invention provides PEGylated-fibrinogen scaffold and methods of generating and using same for treating disorders requiring tissue regeneration.
    Type: Application
    Filed: July 13, 2011
    Publication date: January 26, 2012
    Applicant: Regentis Biomaterials Ltd.
    Inventors: Dror Seliktar, Liora Almany
  • Patent number: 8022155
    Abstract: The invention relates to polymerizable compositions which comprise 10-80% by weight of a reactive diluent based on acrylic acid or methacrylic acid derivatives, and 10-50% by weight of a monomer of the indicated chemical formula which is liquid or which can be dissolved in the formulation. The formula may contain amino acid residues or peptide sequences, especially such that are specific of the collagen. These structural elements allow the enzymatic degradation of the polymers of the inventive composition.
    Type: Grant
    Filed: April 10, 2006
    Date of Patent: September 20, 2011
    Assignee: Technische Universitat Wien
    Inventors: Robert Liska, Monika Schuster, Jürgen Stampfl, Heinrich Gruber, Franz Varga
  • Patent number: 8003079
    Abstract: Nanoparticles having an average particle size of less than 2000 nm, wherein said nanoparticles comprise a polymer having pendant cleavable iodine substituted groups are provided. Processes for preparing the nanoparticles and their use as a contrast agent for X-ray imaging are also described.
    Type: Grant
    Filed: April 4, 2006
    Date of Patent: August 23, 2011
    Assignee: Bar-Ilan University
    Inventors: Shlomo Margel, Anna Galperin
  • Publication number: 20110189479
    Abstract: One-part binder compositions are described that may include a protein and a crosslinking combination. The crosslinking combination may include at least a first crosslinking compound and a second crosslinking compound. The first and second crosslinking compounds are individually crosslinkable with each other and with the protein. Examples of the protein include soy protein. Fiber products and methods of making the fiber products are also described. The fiber products may include organic fibers, inorganic fibers, or both, in a cured thermoset binder based on solutions of the one-part binder compositions.
    Type: Application
    Filed: February 1, 2010
    Publication date: August 4, 2011
    Inventors: Mingfu Zhang, Kiarash Alavi Shooshtari, Jawed Asrar
  • Publication number: 20110091957
    Abstract: A method of synthesizing a protein-polymer conjugate includes the steps: covalently attaching at least one controlled radical polymerization initiator to a protein to form a protein-initiator composition; and mixing the protein-initiator composition with at least one monomer which undergoes controlled radical polymerization in the presence of the protein-initiator composition under conditions suitable to initiate the controlled radical polymerization.
    Type: Application
    Filed: December 10, 2010
    Publication date: April 21, 2011
    Inventors: BHALCHANDRA SHRIPAD LELE, ALAN J. RUSSELL
  • Patent number: 7786213
    Abstract: Chemical polymerization procedures initiated by, and proceeding from, a biomolecule, particularly a protein, for the formation of biomolecule-polymer conjugates, particularly protein-polymer conjugates, which have therapeutic uses, are intermediates for forming other materials or are usable in diagnostic sensors are disclosed. Polymerization can be initiated by a protein in the absence of additional initiation agents to form the protein-polymer conjugate. Alternatively, polymerization is initiated in the presence of an additional initiation agent that does not interact with the protein. Amino acids existing in the protein can serve as the sites for initiation of the polymerization or the protein can be modified to contain site(s) for initiation or protein with active sites can be prepared by recombinant methods, chemical ligation, solid-phase synthesis, or other techniques to generate site(s) for initiation.
    Type: Grant
    Filed: February 2, 2007
    Date of Patent: August 31, 2010
    Assignee: The Regents Of The University Of California
    Inventors: Heather D. Maynard, Debora Bontempo
  • Patent number: 7700709
    Abstract: A derivative of a cytidine metabolic antagonist which can exert a high therapeutic effect at a low dose. A polymeric derivative of a cytidine metabolic antagonist which comprises a polymeric compound having a polyethylene glycol moiety and a polymer moiety having a carboxyl group in a side chain and a cytidine metabolic antagonist, which has such a structure that the carboxyl group in the side chain of the polymeric compound and an amino group in the cytidine metabolic antagonist are bound together to form an amide bond.
    Type: Grant
    Filed: April 27, 2006
    Date of Patent: April 20, 2010
    Assignee: Nippon Kayaku Kabushiki Kaisha
    Inventors: Akira Masuda, Takeshi Onda, Hiroko Mashiba, Keiichirou Yamamoto, Kazutoshi Takashio
  • Publication number: 20090311192
    Abstract: Nanoparticles having an average particle size of less than 2000 nm, wherein said nanoparticles comprise a polymer having pendant cleavable iodine substituted groups are provided. Processes for preparing the nanoparticles and their use as a contrast agent for X-ray imaging are also described.
    Type: Application
    Filed: April 4, 2006
    Publication date: December 17, 2009
    Applicant: Bar-Ilan University
    Inventors: Shlomo Margel, Anna Galperin
  • Publication number: 20090275066
    Abstract: The invention pertains to the field of membrane protein immobilization onto supports. It relates to a product comprising a support and at least one membrane protein attached to the surface thereof, characterized in that said membrane protein is attached to said support using an amphiphilic molecule with which said membrane protein is complexed. It also relates to a process for preparing such product, as well as to various applications in the fields of diagnosis, drug design and biotechnologies. It further relates to a kit, together with a functionalized amphiphilic molecule, for preparing a product according to the invention comprising a support and an amphiphilic molecule, wherein the amphiphilic molecule and the support interact through a hydrophobic bond, an ionic bond, a specific bond or a covalent bond.
    Type: Application
    Filed: November 13, 2007
    Publication date: November 5, 2009
    Applicant: UNIVERSITE PARIS 7 - DENIS DIDEROT
    Inventors: Jean-Luc Popot, Delphine Charvolin, Fabrice Giusti
  • Publication number: 20090099301
    Abstract: The present invention relates to crosslinked polymeric nanospheres having a star-shaped structure of the core-branch type, in which the branches are of a hydrophilic nature and the core is of a polymeric, crosslinked, hydrophobic nature and forms the imprint of all or at least part of a target molecule and to a process for preparing them.
    Type: Application
    Filed: March 22, 2007
    Publication date: April 16, 2009
    Applicant: POLYINTELL
    Inventors: Kaynoush Naraghi, Sami Bayoudh, Michel Arotcarena
  • Patent number: 7029758
    Abstract: The present invention relates to the use of water soluble melanin in solid plastic films of polyvinyl alcohol to be used in conjunction with other plastics to make laminated sheets or lenses. Such laminates will be used as filters to protect against photochemical damage from electromagnetic radiation.
    Type: Grant
    Filed: September 30, 2002
    Date of Patent: April 18, 2006
    Inventors: James Gallas, Melvin Eisner
  • Patent number: 6881789
    Abstract: The present invention relates to a novel biopolymer consisting of a three-dimensional cross-linked mixture of (a) a cross-linking agent, activated with an activating agent, dissolved in a aqueous solution, and (b) a recombinant protein, namely polyubiquitin. The novel biopolymer is based on the cross-linking of ubiquitin (monomeric and/or polymeric) with a cross-linking agent, preferably bifunctionalized polyethylene oxides or a polyethylene glycol of various molecular masses (MW 2000 to 35 000 kDa), dissolved in aqueous solution in adequate proportions. The novel biopolymer offers a wide range of formulations since the number of ubiquitin units and cross-linking agent can vary both in length and ratio. The novel hydrogel is also biodegradable by a specific protease and is resistant to a wide range of other proteases.
    Type: Grant
    Filed: May 29, 2001
    Date of Patent: April 19, 2005
    Assignee: Viridis Biotech Inc.
    Inventor: Marc Bossé
  • Patent number: 6841644
    Abstract: Disclosed are modified naturally occurring biocompatible biopolymers of plant and animal origin made by subjecting same to ionizing radiation in the presence of a mediating gas, typically acetylene to enable one to selectively enhance and modify one or more of the physiochemical properties of the starting materials which have a wide range of uses in medicine, food technology and other industrial applications. Notwithstanding the modifications, the biocompatibility of the biopolymer remains unchanged and no new or additional functional groups are introduced into the starting biopolymer.
    Type: Grant
    Filed: March 28, 2003
    Date of Patent: January 11, 2005
    Assignee: Phillips Hydrocolloids Research Limited
    Inventors: Glyn Owen Phillips, Tjaart Andries Du Plessis, Saphwan Al-Assaf, Peter Anthony Williams
  • Publication number: 20040082717
    Abstract: Materials comprising proteinaceous prepolymers comprising at least one first reactive group reacted with one or more reactive groups on synthetic prepolymers, and methods of making and using same.
    Type: Application
    Filed: June 24, 2003
    Publication date: April 29, 2004
    Applicants: Southwest Research Institute, Keraplast Technologies, Ltd.
    Inventors: Mark E. Van Dyke, Cheryl R. Blanchard, Robert A. Smith
  • Patent number: 6716903
    Abstract: A coating mix for the production of coated paper and board is described in form of an aqueous dispersion with a solids content of 50 to 80% consisting of pigments, binders, and additives. The coating mix exhibits thixotropic flow characteristics and is characterized by the usage of special amine-group or amide-group containing polymers, which act as protective colloids for the pigment particles. The coating mix contains preferably between 0.1 to 1 weight percent of a grafted gelatin.
    Type: Grant
    Filed: August 1, 2000
    Date of Patent: April 6, 2004
    Assignee: CTP Papierhilfsmittel GmbH & Co.
    Inventor: Manfred Baumeister
  • Patent number: 6686161
    Abstract: The present invention provides solid supports (e.g., glass) and polymer hydrogels (particularly polymer hydrogel arrays present on a solid support) comprising one or more reactive sites for the attachment of biomolecules, as well as biomolecules comprising one or more reactive sites for attachment to solid supports and polymer hydrogels. The invention further provides novel compositions and methods for the preparation of biomolecules, solid supports, and polymer hydrogels comprising reactive sites. The invention also provides for preparation of crosslinked solid supports, polymer hydrogels, and hydrogel arrays, wherein one or more biomolecules is attached by means of the reactive sites in a photocycloaddition reaction. Advantageously, according to the invention, crosslinking of the hydrogel and attachment of biomolecules can be done in a single step.
    Type: Grant
    Filed: October 11, 2001
    Date of Patent: February 3, 2004
    Assignee: Amersham Biosciences AB
    Inventors: Travis Johnson, John McGowen, Allyson Beuhler, Charles Kimball Brush, Robert Emil Lajos
  • Patent number: 6610810
    Abstract: Disclosed is a method for modifying naturally occuring biocompatible biopolymers of plant and animal origin by subjecting same to ionizing radiation in the presence of a mediating gas, typically acetylene to enable one to selectively enhance and modify one or more of the physiochemical propserties of the starting materials which have a wide range of uses in medicine, food technology and other industrial applications. Notwithstanding the modifications, the biocompatibility of the biopolymer remains unchanged and no new or additional functional groups are introduced into the starting biopolymer.
    Type: Grant
    Filed: March 13, 2001
    Date of Patent: August 26, 2003
    Inventors: Glyn Owen Phillips, Tjaart Andries Du Plessis, Saphwan Al-Assaf, Peter Anthony Williams
  • Publication number: 20030139556
    Abstract: Polymers containing amino acid and/or polypeptide moieties in their backbones or pendant to their backbones are made by metathesis. A method of making an amino acid or polypeptide containing polymer includes the steps of: providing a amino acid, amino alcohol, or polypeptide-containing monomer; forming a reaction mixture by contacting the monomer with an agent capable of catalyzing the polymerization of the monomer into a polymer; and placing the reaction mixture under conditions that result in the formation of the polymer in reaction mixture.
    Type: Application
    Filed: December 9, 2002
    Publication date: July 24, 2003
    Inventors: Kenneth B. Wagener, Timothy E. Hopkins, James H. Pawlow, Fernando J. Gomez
  • Patent number: 6586493
    Abstract: Disclosed are hyaluronate-containing hydrogels having angiogenic and vascularizing activity and pre-gel blends for preparing the hydrogels. The hydrogels contain a cross-linked matrix of a non-angiogenic hyaluronate and a derivatized polysaccharide material, in which cross-linking is effected by free-radical polymerization. Kits for preparing the hydrogels are also disclosed.
    Type: Grant
    Filed: March 7, 2001
    Date of Patent: July 1, 2003
    Assignee: Arizona Board of Regents Arizona State University
    Inventors: Stephen P. Massia, Julie Trudel
  • Publication number: 20030078314
    Abstract: The present invention provides solid supports (e.g., glass) and polymer hydrogels (particularly polymer hydrogel arrays present on a solid support) comprising one or more reactive sites for the attachment of biomolecules, as well as biomolecules comprising one or more reactive sites for attachment to solid supports and polymer hydrogels. The invention further provides novel compositions and methods for the preparation of biomolecules, solid supports, and polymer hydrogels comprising reactive sites. The invention also provides for preparation of crosslinked solid supports, polymer hydrogels, and hydrogel arrays, wherein one or more biomolecules is attached by means of the reactive sites in a photocycloaddition reaction. Advantageously, according to the invention, crosslinking of the hydrogel and attachment of biomolecules can be done in a single step.
    Type: Application
    Filed: October 11, 2001
    Publication date: April 24, 2003
    Applicant: Motorola Inc.
    Inventors: Travis Johnson, John McGowen, Allyson Beuhler, Charles Kimball Brush, Robert Emil Lajos
  • Patent number: 6517933
    Abstract: The invention is directed to a hybrid polymer material or system that combines naturally occurring building blocks with synthetic building blocks. The sets of naturally occurring and synthetic building blocks are mixed and joined on a molecular or nanoscopic level to give homogeneous or microphase-separated morphologies to the resulting mixed polymer system. These hybrid polymers combine the comfort attributes of natural materials with the robustness and design properties of synthetic materials.
    Type: Grant
    Filed: December 6, 2000
    Date of Patent: February 11, 2003
    Assignee: Nano-Tex, LLC
    Inventors: David S. Soane, Matthew R. Linford, David A. Offord, Dan B. Millward, William Ware, Jr.
  • Patent number: 6372813
    Abstract: The present invention provides solid supports (e.g., glass) and polymer hydrogels (particularly polymer hydrogel arrays present on a solid support) comprising one or more reactive sites for the attachment of biomolecules, as well as biomolecules comprising one or more reactive sites for attachment to solid supports and polymer hydrogels. The invention further provides novel compositions and methods for the preparation of biomolecules, solid supports, and polymer hydrogels comprising reactive sites. The invention also provides for preparation of crosslinked solid supports, polymer hydrogels, and hydrogel arrays, wherein one or more biomolecules is attached by means of the reactive sites in a photocycloaddition reaction. Advantageously, according to the invention, crosslinking of the hydrogel and attachment of biomolecules can be done in a single step.
    Type: Grant
    Filed: June 25, 1999
    Date of Patent: April 16, 2002
    Assignee: Motorola
    Inventors: Travis Johnson, John McGowen, Allyson Beuhler, Charles Kimball Brush, Robert Emil Lajos
  • Publication number: 20020041861
    Abstract: The invention relates to an oral drug delivery system which delivers biologically active substances to the mucosal tissue of the intestine utilizing novel polymerized liposomes. Novel polymerizable fatty acids having a polymerizable group, a surfactant group, and a functional group, and optionally coupled to ligands which target mucosal tissue in the intestine are disclosed. Novel negatively charged polymerizable lipids which have phosphatidyl inositol (PI), phosphatidyl glycerol (PG) or phosphatidyl serine (PS) groups on a polymerizable backbone are also described.
    Type: Application
    Filed: December 13, 2001
    Publication date: April 11, 2002
    Applicant: Orasomal Technologies, Inc.
    Inventors: Robert N. Brey, Likan Liang
  • Patent number: 6297319
    Abstract: The present invention provides: a process for producing a water-absorbing agent by using a crosslinking agent of high safety, wherein the water-absorbing agent is excellent in the absorption capacities under no load and under a load and further in the blocking ratio under a load, and can display excellent absorption properties even if the weight percentage of the water-absorbent resin (resin concentration) is high when the water-absorbent resin is used for materials such as sanitary materials; and such a water-absorbing agent. The water-absorbent resin is mixed and treated with an oxazoline compound, wherein the oxazoline compound has at least three structural units of general formula (1) below: wherein R1˜R4 separately denote a hydrogen atom, an alkyl group, an aromatic group, a halogen group, a substituted alkyl group, or a substituted aromatic group.
    Type: Grant
    Filed: November 2, 1999
    Date of Patent: October 2, 2001
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Kinya Nagasuna, Shinichi Fujino, Masatoshi Nakamura, Kunihiko Ishizaki
  • Patent number: 6291582
    Abstract: A method of preparing a polymer-protein composite based upon placing a protein in solution in an organic phase via the ion-pairing of the protein with a surfactant. The polymer-protein composites are useful, for example, as highly active and stable catalysts, in for example, paints and coatings, as well as in medical application.
    Type: Grant
    Filed: November 10, 1999
    Date of Patent: September 18, 2001
    Assignee: Biotechnology Research & Development Corp.
    Inventors: Jonathan S. Dordick, Ping Wang, Maria Vladimir Sergeeva, Scott Joel Novick
  • Patent number: 6037144
    Abstract: A collagen containing substrate comprising cattle basal membrane is conditioned by incubating the membranes in a mixture of pepsin, hyaluronidase and acetic acid and separating the collagen from the mixture. The mixture can include pepsin, hyaluronidase and a 0.5M solution of acetic acid in 1:1:10 proportions. The incubation is conducted for about 10 hours at about 45.degree. C. After incubation, collagen is separated from the mixture by centrifuging at a speed of 5000 to 30000 rpms for about 30 minutes. The collagen is mixed with polymerizable monomer and polymerized to form a gel that can be ground to form an intraocular or contact lens.
    Type: Grant
    Filed: November 17, 1998
    Date of Patent: March 14, 2000
    Assignee: Staar Surgical AG
    Inventors: Svyatoslav Nikolayevich Fedorov, Sergei Nikolayevich Bagrov, Yevgeny Viktorovich Larionov, Vladimir Borisovich Malyshev