Gelatin Patents (Class 524/22)
  • Patent number: 9296847
    Abstract: Ligand functionalized substrates, methods of making ligand functionalized substrates, and methods of using functionalized substrates are disclosed.
    Type: Grant
    Filed: January 20, 2015
    Date of Patent: March 29, 2016
    Assignee: 3M Innovative Properties Company
    Inventors: Jerald K. Rasmussen, Catherine A. Bothof, Kannan Seshadri, Erin A. Satterwhite, Robert T. Fitzsimons, Jr., James L. Hembre, Mahfuza B. Ali
  • Publication number: 20150132592
    Abstract: Coating compositions comprising a film-forming resin and catalyst associated with a carrier, wherein at least some of the catalyst can be released from the carrier upon application of shear force is disclosed.
    Type: Application
    Filed: November 8, 2013
    Publication date: May 14, 2015
    Applicant: PPG Industries Ohio, Inc.
    Inventors: Scott J. Moravek, Jane N. Valenta, Davina J. Schwartzmiller
  • Publication number: 20150134048
    Abstract: The present invention is directed to polymeric materials comprising biodegradable, dioxanone-based copolymers and implantable devices (e.g., drug-delivery stents) formed of such materials. The polymeric materials can also contain at least one additional biocompatible moiety, at least one non-fouling moiety, at least one biobeneficial material, at least one bioactive agent, or a combination thereof. The polymeric materials are designed to improve the mechanical, physical and biological properties of implantable devices formed thereof.
    Type: Application
    Filed: January 22, 2015
    Publication date: May 14, 2015
    Inventor: Ni Ding
  • Patent number: 8980295
    Abstract: Biomaterials that support cell attachment and growth are provided. In one aspect, biomaterials are provided comprising a first polymer matrix comprising reactive amino moieties and a second polymer matrix that interpenetrates with the first polymer matrix, where the second polymer matrix comprises a poly(alkylene oxide) comprising two or more alkylene oxide oligomers joined by gamma-thioether carbonyl linkages. In another aspect, biomaterials are provided comprising at least one biopolymer comprising amino groups, thiol groups, and bifunctional modifiers connecting at least some of the amino groups to at least some of the thiol groups; and at least one poly(alkylene oxide) cross-linked to at least two thiol groups of the biopolymer. The biomaterials may further comprise a pharmacologically active agent or cells. Methods of administering such biomaterials to a patient in need thereof are also provided.
    Type: Grant
    Filed: March 2, 2012
    Date of Patent: March 17, 2015
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: Weiyuan J. Kao, Yao Fu
  • Publication number: 20150010490
    Abstract: The present invention relates to an anti-adhesion polymer composition capable of supporting growth factor, which effectively exhibits anti-adhesion function and, at the same time, has an excellent adhesive property so as to be able to easily and continuously adhere to a wound site, has antibacterial and hemostatic properties, and is composed of an injectable formulation suitable for use in minimally invasive surgery, laparoscopic surgery or the like. The anti-adhesion polymer composition capable of supporting growth factor comprises: 24-50 wt % of a polyethyleneglycol-polypropyleneglycol-polyethyleneglycol (PEG-PPG-PEG) block copolymer having a polyethyleneglycol (PEG) content of 65-85 wt % and a molecular weight of 6,000-20,000 Da; 0.03-5 wt % of gelatin; 0.03-5 wt % of chitosan; and distilled water.
    Type: Application
    Filed: March 8, 2012
    Publication date: January 8, 2015
    Applicant: CG BIO CO., LTD.
    Inventors: Jung Ju Kim, Jung Won So, Hyun Seung Ryu, Jun Hyuk Seo
  • Patent number: 8901210
    Abstract: The present embodiment relates to a Plasticizer, which is fabricated by mixing monomers of biodegradable polymer with bio-molecules subsequently to deal the mixture with thermal treatment. The Biodegradable material comprising the Plasticizer has high melt index which is contributive for the processing of thermal processing, and the microwave-tolerance and water-resistance of the material makes the material suitable for food packaging.
    Type: Grant
    Filed: December 3, 2013
    Date of Patent: December 2, 2014
    Assignee: Industrial Technology Research Institute
    Inventors: Hsiu-Yu Cheng, Guang-Way Jang, Yin-Ju Yang, Shu-Chen Li
  • Publication number: 20140094544
    Abstract: The present embodiment relates to a Plasticizer, which is fabricated by mixing monomers of biodegradable polymer with bio-molecules subsequently to deal the mixture with thermal treatment. The Biodegradable material comprising the Plasticizer has high melt index which is contributive for the processing of thermal processing, and the microwave-tolerance and water-resistance of the material makes the material suitable for food packaging.
    Type: Application
    Filed: December 3, 2013
    Publication date: April 3, 2014
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Hsiu-Yu CHENG, Guang-Way JANG, Yin-Ju YANG, Shu-Chen LI
  • Publication number: 20140010858
    Abstract: The present invention is directed to polymeric compositions comprising a biodegradable copolymer that possesses shape-memory properties and implantable devices (e.g., drug-delivery stents) formed of materials (e.g., a coating) containing such compositions. The polymeric compositions can also contain at least one non-fouling moiety, at least additional biocompatible polymer, at least one biobeneficial material, at least one bioactive agent, or a combination thereof. The polymeric compositions are formulated to possess good mechanical, physical and biological properties. Moreover, implantable devices formed of materials comprising such compositions can be delivered to the treatment site in a conveniently compressed size and then can expand to dimensions appropriate for their medical functions.
    Type: Application
    Filed: May 28, 2013
    Publication date: January 9, 2014
    Applicant: Abbott Cardiovascular Systems Inc.
    Inventors: John J. Stankus, O. Mikael Trollsas, Michael H. Ngo
  • Patent number: 8623944
    Abstract: The present invention relates to a Plasticizer, which is fabricated by mixing monomers of biodegradable polymer with bio-molecules subsequently to deal the mixture with thermal treatment. The Biodegradable material comprising the Plasticizer has high melt index which is contributive for the processing of thermal processing, and the microwave-tolerance and water-resistance of the material makes the material suitable for food packaging.
    Type: Grant
    Filed: December 19, 2011
    Date of Patent: January 7, 2014
    Assignee: Industrial Technology Research Institute
    Inventors: Hsiu-Yu Cheng, Guang-Way Jang, Yin-Ju Yang, Shu-Chen Lee
  • Publication number: 20120220680
    Abstract: The present invention relates to biodegradable aliphatic-aromatic polyesters obtained from aliphatic dicarboxylic acids, polyfunctional aromatic acids and diols, wherein the polyfunctional aromatic acids are constituted by mixtures of acids of renewable and synthetic origin.
    Type: Application
    Filed: November 5, 2010
    Publication date: August 30, 2012
    Applicant: Novamont S.P.A.
    Inventors: Catia Bastioli, Giampietro Borsotti, Luigi Capuzzi, Gian Tomaso Masala, Tiziana Milizia, Roberto Vallero
  • Publication number: 20120129970
    Abstract: The present invention provides polymer composites reinforced with high aspect ratio reinforcing fillers selected from calcium phosphate nanofibers, nanoplates, submicron fibers, submicron plates, and combinations thereof. The mechanical and biological properties of the inventive composites are enhanced significantly over current polymer composites and may be employed in various biomedical applications, such as dental restorations.
    Type: Application
    Filed: July 14, 2011
    Publication date: May 24, 2012
    Applicant: THE CURATORS OF THE UNIVERSITY OF MISSOURI
    Inventors: Hao Li, Qingson Yu, Liang Chen, Meng Chen
  • Publication number: 20120083556
    Abstract: Transparent ink-jet recording films, compositions, and methods are disclosed. These films exhibit high maximum optical densities and have low haze values. These films are useful for medical imaging.
    Type: Application
    Filed: September 27, 2011
    Publication date: April 5, 2012
    Inventors: William D. Devine, William J. Ruzinsky
  • Publication number: 20100108616
    Abstract: The invention relates to a dispersing agent composition and to a process for treating liquid slurries of bentonite particles, optionally comprising contaminating solids, in order to remove any contaminating solids and/or the bentonite particles, wherein said dispersing agent composition is added to said slurry causing contaminating solids and/or the bentonite particles to settle without flocculation.
    Type: Application
    Filed: January 24, 2008
    Publication date: May 6, 2010
    Applicant: GEO Grounding Engineering Operations
    Inventors: Arnaud R. W. Bostyn, Jorge Capitao-Mor Da Costa E Silva
  • Patent number: 7608205
    Abstract: Microscopic particle decentralized solution having microscopic particles with different diameters are decentralized, wherein: the microscopic particle decentralized solution has two peaks in a granularity distribution, at a large diameter and a small diameter; and microscopic particle mixtures satisfying the following relationships are decentralized in the solution; R>r and n>3.84×(R/r)3×N, where R is a large particle diameter, r is a small particle diameter, N is the number of large particles, and n is the number of small particle.
    Type: Grant
    Filed: September 29, 2006
    Date of Patent: October 27, 2009
    Assignee: Hitachi, Ltd.
    Inventors: Yuichiro Sano, Toru Miyasaka
  • Publication number: 20090110713
    Abstract: The present invention is directed to polymeric materials (e.g., coatings) comprising biodegradable copolymers and implantable devices (e.g., drug-delivery stents) formed of such materials. The biodegradable copolymers are derived from at least two relatively polar monomers and at least one relatively nonpolar monomer. Incorporation of at least one relatively nonpolar monomer into the copolymer improves controlled release of a hydrophobic drug from the polymeric material by increasing the copolymer's miscibility with and permeability to the hydrophobic drug. The polymeric materials can also contain at least one biocompatible moiety, at least one non-fouling moiety, at least one biobeneficial material, at least one bioactive agent, or a combination thereof. The polymeric materials are designed to improve the mechanical, physical and biological properties of implantable devices formed thereof.
    Type: Application
    Filed: October 31, 2007
    Publication date: April 30, 2009
    Inventors: Florencia Lim, Michael H. Ngo, Yiwen Tang, Syed F.A. Hossainy, Mikael O. Trollsas
  • Publication number: 20080233405
    Abstract: The invention provides a method for fastening a polymeric label to a glass, plastic or metal container or surface by means of a water based composition containing at least 30% by dry weight of animal glue that is activated into an adhesive by the following steps: (a) applying a layer of a hydrophilic solid material based on at least 30% by weight on protein from animal renderings to a polymeric label to form a hydrophilic layer that acts as an adhesive layer when activated with an aqueous medium; (b) applying a low deposition of water, a water based adhesive, water containing a cross-linking agent or an adhesive containing a cross-linking agent to the activatable hydrophilic layer sufficient enough to activate it into an adhesive and form a fastenable polymeric label; (c) fastening the fastenable polymeric label to a glass, plastic or metal container or surface; and (d) allowing said the polymeric label to dry on the glass, plastic or metal container or surface.
    Type: Application
    Filed: January 24, 2005
    Publication date: September 25, 2008
    Inventor: Peter J. Dronzek Jr.
  • Patent number: 7344658
    Abstract: The present invention provides radioprotective materials and products produced using the materials, the materials and products being easily usable for blocking the effects of radiation, exposure to which occurs unconsciously in daily life or in the working environment. Specifically stated, the present invention provides radioprotective materials comprising at least one member selected from the group consisting of collagens, keratins, silk fibroins and their derivatives. The present invention also provides radioprotective products produced using the radioprotective materials.
    Type: Grant
    Filed: January 23, 2003
    Date of Patent: March 18, 2008
    Assignee: Allmighty Co., Ltd.
    Inventors: Hirosige Nakatsuka, Akihito Tsuchiya, Quang Huy Nguyen
  • Patent number: 7153896
    Abstract: An element for the attachment of protein arrays, the element comprising a surface to which are attached a plurality of piperazine functional groups wherein the piperazine functional groups are represented by Formula I: where R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, are hydrogen, alkyl, alkenyl, alkynyl, alkylhalo, cycloalkyl, cycloalkenyl, alkylthio, alkoxy, with the proviso that at least one of R1 to R10 be a non-labile chemical unit that attaches the piperazine functional group to the surface of the element.
    Type: Grant
    Filed: November 14, 2003
    Date of Patent: December 26, 2006
    Assignee: Eastman Kodak Company
    Inventors: Kevin P. Dockery, David M. Teegarden, Tiecheng A. Qiao, Brian J. Antalek, Susan Power
  • Patent number: 6987138
    Abstract: This invention provides a novel rapidly biodegradable polylactide resin composition while maintaining the good mechanical strength and physical properties of polylactide. This biodegradable polylactide resin composition comprises at least one protein selected from silk, gelatin, keratin, elastin, gluten, zein, or soybean. This composition further comprises degraded mannan, and furthermore, a filler.
    Type: Grant
    Filed: June 16, 2003
    Date of Patent: January 17, 2006
    Assignee: National Institute of Advanced Industrial Science & Technology
    Inventors: Yutaka Tokiwa, Takao Raku
  • Patent number: 6869990
    Abstract: An agricultural solid waste composition contains 81-90% by weight of a powdered agricultural solid waste, 9-15% by weight of water, and 1-4% by weight of a binder. The binder contains 85-95% by weight of a gel material, 2-7% by weight of a sulfate, 2-7% by weight of a stearate, and 0.5-2% by weight of a skin forming agent. The skin forming agent contains 75-85% by weight of the gel material, 6-10% by weight of calcium chloride, and 9-15% by weight of alum.
    Type: Grant
    Filed: March 21, 2003
    Date of Patent: March 22, 2005
    Inventor: Kuo-Chen Yang
  • Patent number: 6818686
    Abstract: The invention relates to a water based polymer composition comprising a biopolymer and a synthetic polymer resin. The biopolymer results from a mechanical thermoplastic processing of a polysaccharide and/or protein starting material using shear forces in the presence of a crosslinking agent. The synthetic polymer resin consists of a water based hydrophilic resin and/or hydrophilic/hydrophobic resin. These compositions have a good storage stability. They are intended for the production of coatings with fair properties.
    Type: Grant
    Filed: July 8, 2002
    Date of Patent: November 16, 2004
    Assignee: UCB, S.A.
    Inventors: Marc Colpaert, Dirk Bontinck, Patrice Roose
  • Patent number: 6777465
    Abstract: A tackifier utilizing a synthetic polymer of polyacrylamide, polyacrylate, or a co-polymer of acrylamide or acrylate, combined with a natural organic material. A cross-linking agent is also employed to cross-link the synthetic polymer to the natural organic material.
    Type: Grant
    Filed: June 11, 2001
    Date of Patent: August 17, 2004
    Inventor: Michael L. Haile
  • Publication number: 20040063819
    Abstract: A composition suitable for forming a primer layer on a polymer sheet comprising: a) polyethyleneimine; b) latex; wherein the latex has a Tg lower than 25° C. and c) a hydrophilic colloid material. A method of coating the composition is also disclosed.
    Type: Application
    Filed: September 27, 2002
    Publication date: April 1, 2004
    Applicant: Eastman Kodak Company
    Inventors: Yuanqiao Rao, DeBasis Majumdar, Robert J. Kress, David E. Decker
  • Patent number: 6710100
    Abstract: A fluid-absorbing, composite material that is pressure sensitive adhesive and which is made of a mixture comprising a continuous phase formed from a pressure sensitive adhesive matrix, and a discontinuous phase substantially comprised of one or more natural or synthetically derived water soluble and/or water insoluble absorbents, characterised in that the continuous phase contains trans-polyoctenamer polymer, which material serves to elevate the shear strength of the composite. Because of its low melting point, compositions containing trans-polyoctenamer polymer are very easy to process. Formulations can be prepared that have only weakly adhesive properties, also formulations that are suitable as primary dressings for various hard-to-heal and chronic wounds. The pressure sensitive adhesive can also be combined with a non-adhesive, water impervious film, or other backing material, and can be used as the protective adhesive skin barrier component of ostomy pouches.
    Type: Grant
    Filed: August 22, 2002
    Date of Patent: March 23, 2004
    Assignee: Avery Dennison Corporation
    Inventor: Roger David Arnold Lipman
  • Patent number: 6545082
    Abstract: A coating material contains at least one substance selected from the group consisting of water-soluble resin such as water-soluble acryl resin, resin emulsion such as acryl emulsion and solvent resin such as solution of urethane resin into a solvent (A); resin beads such as polyethylene beads (B); and at least one substance selected from the group consisting of soluble protein such as collagen and resin emulsion incompatible with the (A) such as ethylene-acryl copolymer (C). (A) improves adhesion with a base member, (B) improves heat sealability and (C) improves surface lubricity and anti-blocking properties. Further, water-soluble amine additive (D) may be added to improve adhesion with olefin base member.
    Type: Grant
    Filed: December 16, 1999
    Date of Patent: April 8, 2003
    Assignee: Idemitsu Petrochemical Co., Ltd.
    Inventor: Takaharu Yasue
  • Patent number: 6451883
    Abstract: A pressure sensitive adhesive composition suitable for medical purposes comprising a rubbery elastomeric base and one or more water soluble or water swellable hydrocolloids, the adhesive composition comprising a substantially homogeneous mixture of 35-50% of one or more polybutenes, 5-20% of one or more styrene copolymers, and 20-60% of one or more hydrocolloids has very good properties as an adhesive for ostomy appliances.
    Type: Grant
    Filed: February 28, 2000
    Date of Patent: September 17, 2002
    Assignee: Coloplast A/S
    Inventors: Fei Chen, Danuta Ciok
  • Patent number: 6437038
    Abstract: A pressure sensitive adhesive composition suitable for medical purposes comprising a rubbery elastomeric base and one or more water soluble or water swellable hydrocolloids, the adhesive composition comprising a substantially homogeneous mixture of 15-60% of a butyl rubber, 15-60% of one or more tackifier resins, 1-10% of a tackifying liquid constituent, 20-60% of one or more hydrocolloids and 0-3% of a pigment shows very good properties as an adhesive for ostomy appliances.
    Type: Grant
    Filed: June 23, 2000
    Date of Patent: August 20, 2002
    Assignee: Coloplast
    Inventor: Fei Chen
  • Patent number: 6346515
    Abstract: A collagen matrix comprises collagen fibrils which are cross-linked to one another by reducing sugar or a reducing sugar derivative. The collagen matrix may be formed into a membrane useful in guided tissue regeneration.
    Type: Grant
    Filed: June 18, 1999
    Date of Patent: February 12, 2002
    Assignee: Colbar R & D Ltd.
    Inventors: Sanhu Pitaru, Matityahu Noff
  • Publication number: 20020010233
    Abstract: A coating material contains at least one substance selected from the group consisting of water-soluble resin such as water-soluble acryl resin, resin emulsion such as acryl emulsion and solvent resin such as solution of urethane resin into a solvent (A); resin beads such as polyethylene beads (B); and at least one substance selected from the group consisting of soluble protein such as collagen and resin emulsion incompatible with the (A) such as ethylene-acryl copolymer (C). (A) improves adhesion with a base member, (B) improves heat sealability and (C) improves surface lubricity and anti-blocking properties.
    Type: Application
    Filed: December 16, 1999
    Publication date: January 24, 2002
    Inventor: TAKAHARU YASUE
  • Publication number: 20020004131
    Abstract: The present invention provides a recording medium comprising a substrate having a glossy coating thereon, wherein the glossy coating comprises a binder and first and second groups of particles, wherein:
    Type: Application
    Filed: August 8, 2001
    Publication date: January 10, 2002
    Inventors: Michael S. Darsillo, David J. Fluck, Rudiger Laufhutte
  • Patent number: 6326421
    Abstract: A pressure-sensitive adhesive material made of a weakly elastic mixture comprising a continuous phase formed essentially from a physically cross-linked solid rubber, which comprises a blend of A-B-A block copolymer, such as a styrene-isoprene-styrene block copolymer and a diblock copolymer such as styrene-butadiene, styrene-isoprene or a hydrogenated styrene-diene copolymer such as styrenel/etyhlene butylene, a compatible tackifying resin and a low-molecular weight polyisobutylene, optionally modified by butyl rubber, and a discontinuous phase comprising one or more hydrocolloids that are soluble and/or swellable in water.
    Type: Grant
    Filed: June 5, 2000
    Date of Patent: December 4, 2001
    Assignee: Avery Dennison Corporation
    Inventor: Roger D. A. Lipman
  • Patent number: 6284819
    Abstract: The present invention provides a recording medium comprising a substrate having a glossy coating thereon, wherein the glossy coating comprises a binder and first and second groups of particles, wherein: (a) the first group comprises metal oxide particles, wherein the metal oxide particles are aggregates of smaller, primary particles, (b) the mean diameter of the primary particles is less than about 100 nm, (c) the mean diameter of the aggregates is from about 100 nm to about 500 nm, (d) the mean diameter of the particles in the second group is less than about 50% of the mean diameter of the aggregates in the first group, and (e) the ratio of particles in the first group to particles in the second group is from about 0.1:1 to about 10:1 by weight. The glossy coating of the inventive recording medium has an excellent rate of liquid absorption, a relatively high liquid absorption capacity, excellent adhesiveness, and a non-brittle, crack-resistant, glossy surface.
    Type: Grant
    Filed: July 1, 1999
    Date of Patent: September 4, 2001
    Assignee: Cabot Corporation
    Inventors: Michael S. Darsillo, David J. Fluck, Rudiger Laufhutte
  • Patent number: 6284838
    Abstract: A biodegradable composition, is obtained by heating a melting together at least one lignin and/or a lignin containing material with a protein. This composition may contain one or more additives. Also disclosed are articles produced with this composition.
    Type: Grant
    Filed: May 17, 1999
    Date of Patent: September 4, 2001
    Assignee: Novamont S.p.A.
    Inventor: Jakob Silbiger
  • Patent number: 6071981
    Abstract: A polymer composition comprising an anticoagulant carried in a water soluble polymer hydrogen bonded to a cellulose polymer. The composition is useful as sutures, implantable material, temporary grafts, vasculature connections and the like. The composition can be prepared by a method comprising the steps of: forming a solution in an amine oxide of a water-soluble polymer capable of hydrogen bonding, a cellulose polymer, and an anticoagulant and reducing the amount of amine oxide in the solution to solidify a solid polymer composition comprising the anticoagulant in the water soluble polymer and the cellulose polymer. The polymer compositions are particularly useful in temporary implants, sutures, grafts or the like.
    Type: Grant
    Filed: September 30, 1998
    Date of Patent: June 6, 2000
    Assignees: Aveka, Inc., Techmatch, Inc.
    Inventors: Dee Lynn Johnson, William A. Hendrickson
  • Patent number: 6060541
    Abstract: The present invention is an imaging element which includes a support, at least one image forming layer superposed on the support and a protective overcoat superposed on the support. The protective overcoat is farthest from the support. The protective overcoat is formed by the coating and subsequent drying of a coating composition of an aqueous medium having therein a water dispersible siloxane-containing polyurethane.
    Type: Grant
    Filed: August 19, 1998
    Date of Patent: May 9, 2000
    Assignee: Eastman Kodak Company
    Inventors: Charles C. Anderson, Brian A. Schell, Yongcai Wang, Mario D. DeLaura
  • Patent number: 5955438
    Abstract: A collagen matrix comprise collagen fibrils which are cross-linked to one another by a reducing sugar or a reducing sugar derivative. The collagen matrix may be formed into a membrane useful in guided tissue regeneration.
    Type: Grant
    Filed: July 19, 1995
    Date of Patent: September 21, 1999
    Assignee: ColBar R & D Ltd.
    Inventors: Sandu Pitaru, Matityahu Noff
  • Patent number: 5948857
    Abstract: The present invention is a water-dispersible polyurethane composed of a polyurethane containing carboxylate groups covalently bonded to gelatin through a grafting agent. The polyurethane is formed by providing a polyurethane dispersion containing carboxylate groups wherein the polyurethane dispersion has an acid number of at least 5. The polyurethane dispersion is contacted with a grafting agent. The polyurethane dispersion with the grafting agent is contacted with gelatin to form a polyurethane covalently bonded to gelatin wherein a ratio of gelatin to polyurethane is from 1:10 to 2:1.
    Type: Grant
    Filed: June 4, 1998
    Date of Patent: September 7, 1999
    Assignee: Eastman Kodak Company
    Inventors: Charles C. Anderson, Brian A. Schell, Gary R. Opitz
  • Patent number: 5922789
    Abstract: The invention is a ready-to-use, water-redispersible powder composition useful for preparing photographic recording materials or inkjet recording materials, which comprises a mixture containing polymers made from ethylenically unsaturated monomers and gelatin, wherein the polymers are prepared by emulsion polymerization in the presence of at least one emulsifier selected from emulsifiers with ionic and nonionic groups and if exclusively ionic emulsifiers are used, the copolymerization is carried out in the presence of comonomers which contain one or more groups selected from --COOH, --OH, SO.sub.3.sup.-, NCH.sub.2 OH and --C.dbd.O.
    Type: Grant
    Filed: April 9, 1998
    Date of Patent: July 13, 1999
    Assignee: Wacker-Chemie GmbH
    Inventors: Klaus Kohlhammer, Wolfgang Roth-Greiner, Reiner Figge, Reinhard Haerzschel
  • Patent number: 5902844
    Abstract: Methods of forming solid pharmaceutical compositions comprise solubilizing water-soluble polymers and amino acid-based components having molecular weights ranging from about 100 daltons to about 200,000 daltons or pharmaceutically acceptable salts thereof in solvents; and separating the solvents from the water-soluble polymers and the amino acid-based components or pharmaceutically acceptable salts thereof to form solid pharmaceutical compositions comprising the water-soluble polymers and the amino acid-based components or pharmaceutically acceptable salts thereof.
    Type: Grant
    Filed: February 2, 1998
    Date of Patent: May 11, 1999
    Assignee: Applied Analytical Industries, Inc.
    Inventor: Edward S. Wilson
  • Patent number: 5883155
    Abstract: Elastomer films in which active chemical substances, such as corrosion inhibitors, lubricants or biocides for medical use are uniformly dispersed in the form of gel inclusions, processes for preparation and applications of these films.The elastomer film contains at least one active chemical substance in the form of a phase which is dispersed in the elastomer, wherein the disperse phase is in the form of a gel, reversible or irreversible, as a function of temperature, and filled with an active chemical substance.
    Type: Grant
    Filed: November 4, 1996
    Date of Patent: March 16, 1999
    Assignee: Hutchinson
    Inventors: Pierre Hoerner, Gerard Riess, Rene Guy Busnel, Andre Cheymol
  • Patent number: 5851684
    Abstract: A novel aqueous sheet-impregnating composition including a composition of a styrene-ethyl acrylate-butyl acrylate copolymer and a binder. The binder is selected from polyvinyl alcohol, polyvinyl acetate, gelatin and starch, and the composition includes 5-90 parts by weight of a polyvinyl alcohol solution and 10-95 parts by weight of a styrene-ethyl acrylate-butyl acrylate copolymer dispersion. A decorative sheet for laminates may thereby be obtained.
    Type: Grant
    Filed: November 18, 1996
    Date of Patent: December 22, 1998
    Assignee: Arjo Wiggins Deutschland GmbH
    Inventors: Horst Matscheko, Stefan Zachert
  • Patent number: 5837755
    Abstract: A urea-resin composition comprising a urea-formaldehyde reaction product, cellulose material, and at least one substance selected from the group cosisting of .alpha.-amino acid, powdered collagen and gelatin. The present invention provides urea-resin compositions which, having a property to harden under heating, are themselves biodegradable and have sufficient physical properties to be applied for practical purposes.
    Type: Grant
    Filed: March 29, 1996
    Date of Patent: November 17, 1998
    Assignee: Showa Highpolymer Co., Ltd.
    Inventors: Eiichiro Takiyama, Yoshitaka Hatano
  • Patent number: 5834538
    Abstract: A pressure sensitive adhesive(PSA) composition includes a latex system of an aqueous polymer dispersion derived from ethylenically-unsaturated monomers in the presence of a water soluble protective colloid. The PSA compositions are used in the manufacture of a variety of articles that are intended to be easily attachable to another substrate by the application of pressure alone.
    Type: Grant
    Filed: June 18, 1996
    Date of Patent: November 10, 1998
    Assignee: Hercules Incorporated
    Inventors: Jacobus G. deHullu, Dirk Kruythoff, Willemien G. Salomons, Adriana Veldhorst
  • Patent number: 5563191
    Abstract: A phase-separated membrane in which the control of permeation rate and the control of permeation amount of a minute amount of drugs or other chemical substances are easily performed is provided. The phase-separated membrane has a constitution that a crosslinked gelatin phase 1 and an uncrosslinked segmented polyurethane phase 2 are present as a mixture. The segmented polyurethane phase is in a solid state at ordinary temperatures and is molten into a liquid state at 30.degree. to 40.degree. C. which is near the temperature of human skin.
    Type: Grant
    Filed: March 29, 1995
    Date of Patent: October 8, 1996
    Assignee: Takiron Co., Ltd.
    Inventor: Yasuo Shikinami
  • Patent number: 5492943
    Abstract: A pressure sensitive adhesive composition particularly suitable for use as a protective skin barrier material for sealing the faceplate of an ostomy appliance, such as the faceplate of a one-piece or two-piece urostomy or an ileostomy appliance, to skin surfaces surrounding a patient's stoma. The composition includes a blend of two viscoelastic adhesive elastomers, specifically, high molecular weight polyisobutylene and a styrene block copolymer, which, along with a plasticizer (preferably petrolatum) and a suitable tackifier and antioxidant, form a continuous phase in which hydrocolloids such as sodium carboxymethylcellulose and pectin are dispersed. The composition is exceptional for its durability, flexibility and strength, even when saturated, and for its controlled swelling upon hydration.
    Type: Grant
    Filed: June 20, 1994
    Date of Patent: February 20, 1996
    Assignee: Hollister Incorporated
    Inventor: Emil Stempel
  • Patent number: 5424342
    Abstract: A modified vinyl chloride resin composition prepared by adding 1 to 10 parts by dry weight of glue or gelatin to 100 parts by weight of vinyl chloride resin compound shows improved physical properties such as improved cracking resistance when used as the sole of shoes, improved adhesion properties for leather, cold cracking resistance as electric wirecoating material, improved vibration damping properties as vibration-preventing member, and non-slipping properties as power-carrying belt material, and is useful as molding composition for making footwear, coating composition with good cold resistance, belt composition with non-slipping properties, and resin material for preventing vibration having excellent vibration-damping properties.
    Type: Grant
    Filed: July 15, 1993
    Date of Patent: June 13, 1995
    Inventor: Kazuo Hashimoto
  • Patent number: 5369155
    Abstract: A composite of a gel of swollen hydrocolloid dispersed in a pressure sensitive adhesive matrix is provided. The gel has a natural or synthetically derived hydrocolloid swollen with a non-volatile swelling agent, such that the gel may have a shear modulus of less than 6.2.times.10.sub.6 dynes/cm.sup.2 The gel-adhesive composite has continued skin adhesion whether applied to or existing in dry or moist skin conditions. The gel contributes a high moisture vapor transmission rate to attempt to maintain dry skin conditions while the adhesive maintains skin adhesion. The gel-adhesive composite may be used in a variety of tape, dressing, bandage, drape, or other skin contacting usage and may optionally include antimicrobial agents to treat the skin while adhesion continues.
    Type: Grant
    Filed: July 1, 1993
    Date of Patent: November 29, 1994
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Robert A. Asmus
  • Patent number: 5164057
    Abstract: An electrophoretic matrix comprised of at least one water-insolubilized, temperature-responsive polymeric compound having an LCST is disclosed. The electrophoretic matrix can change its hydrophilic/hydrophobic property by changing temperature. A method of using the electrophoretic matrix involves charging a sample onto the matrix and carrying out electrophoresis at a temperature above or below the LCST of the polymeric compound.
    Type: Grant
    Filed: September 19, 1991
    Date of Patent: November 17, 1992
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Yuichi Mori, Masato Mikami, Hiroshi Yoshioka
  • Patent number: 5110848
    Abstract: A process for dispersing particles of an organic commpound in water is disclosed, which comprises dispersing the organic compound in water using (1) a water-soluble high molecular weight compound having a molecular weight of at least 10,000 and (2) a copolymer formed from a monomer represented by the following formula (I) and a monomer represented by the following formula (II), said copolymer having a molecular weight of not more than 10,000: ##STR1## wherein M.sub.1 and M.sub.2 each represents an alkali metal atom or an ammonium group; R.sub.1 represents a hydrogen atom, a methyl group, or an ethyl group; and R.sub.2 represents an alkyl group having from 2 to 18 carbon atoms.
    Type: Grant
    Filed: February 1, 1989
    Date of Patent: May 5, 1992
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Akira Igarashi
  • Patent number: 5104914
    Abstract: It is the object of this invention to provide a method for the preparation of an antiblocking agent which is effective in its antiblocking activity but is considerable less visible in photographic enlargements made from the film containing the antiblock of this invention.There is described a process for the preparation of monodispersed polymer particles between 5 and 10 microns in diameter which comprises preparing a dispersion of monosized seed polymer particles and then adding to this dispersion an ethylenically unsaturated monomer which is different from the monomer used to prepare the seed polymer particles, together with a polymerization initiator and completing the polymerization, the refractive index of one of the polymers produced being greater than 1.54 and the refractive index of the other polymer being less than 1.54.The refractive index of gelatin is 1.54. There is produced by the process of the present invention a particle which comprises two polymers.
    Type: Grant
    Filed: May 10, 1990
    Date of Patent: April 14, 1992
    Assignee: Ilford Limited
    Inventors: Peter J. Elton, John L. Cawse