Protein Or Biologically Active Polypeptide As Dnrm Patents (Class 524/704)
-
Publication number: 20150044483Abstract: The invention provides protein adhesives containing certain additives and methods of making and using such adhesives. The protein adhesives contain ground plant meal or an isolated polypeptide composition obtained from plant biomass in combination with certain additives, such as an exfoliated clay or partially exfoliated clay.Type: ApplicationFiled: September 7, 2012Publication date: February 12, 2015Applicant: Biopolymer Technologies, Ltd.Inventors: Anthony A. Parker, Joseph J. Marcinko
-
Patent number: 8536254Abstract: In order to provide a curable casting compound for producing plastic molded parts, comprising a binder component based on polymerizable monomers selected from methyl acrylate or methyl methacrylate and a proportion of about 40 to about 85% by weight of one or more inorganic fillers, which compound can be used for producing plastic molded parts having an increased impact strength, it is proposed that the casting compound comprise 0.1 to 0.5% by weight of keratin fibers.Type: GrantFiled: December 5, 2011Date of Patent: September 17, 2013Assignee: BLANCO GmbH + Co KGInventors: Andreas Hajek, Thomas Marz
-
Publication number: 20130004778Abstract: An aqueous polymerizable hybrid organometalloglass composition, with polymeric molecular hybrid nanocrystals optionally self-assembled within the composition. The composition may be applied to a substrate to form a polymeric hybrid organometalloglass coating or dried and processed to form a polymeric hybrid organometalloglass powder.Type: ApplicationFiled: December 8, 2010Publication date: January 3, 2013Inventors: Gary D. Tucker, III, James Joseph Deluca, Todd M. Fitts
-
Publication number: 20120149808Abstract: In order to provide a curable casting compound for producing plastic moulded parts, comprising a binder component based on polymerizable monomers selected from methyl acrylate or methyl methacrylate and a proportion of about 40 to about 85% by weight of one or more inorganic fillers, which compound can be used for producing plastic moulded parts having an increased impact strength, it is proposed that the casting compound comprise 0.1 to 0.5% by weight of keratin fibres.Type: ApplicationFiled: December 5, 2011Publication date: June 14, 2012Inventors: Andreas Hajek, Thomas Marz
-
Patent number: 8133951Abstract: A modified polyacrylonitrile fiber and its preparation process and use are disclosed. An animal hair micro powder is used as a modifier for polyacrylonitrile polymer. The weight percent of a monomer composition is as follows: acrylonitrile monomer 50.0-98.8%, initiator 0.1-0.4%, animal hair micro powder 1.0-50.0%. The preparation process of the modified polyacrylonitrile fiber comprises the following steps: 1. preparing the animal hair micro powder suspension, 2. preparing spinning dope of the modified polyacrylonitrile fiber, 3. preparing the modified polyacrylonitrile fiber. The fiber is suitable for making artificial synthetic hair product such as hairpieces, and resembles well natural human hair.Type: GrantFiled: April 19, 2011Date of Patent: March 13, 2012Assignee: Hiking Group Co., Ltd.Inventors: Xingxiang Zhang, Jianhua Zhang, He Cui, Xuechen Wang, Jianjin Niu
-
Publication number: 20110291317Abstract: Moldable, curable, reinforcing particle-filled compositions and methods for making the compositions are provided. The moldable compositions are characterized by high loadings of reinforcing filler particles in a thermosetting matrix and, as such, can be strong, yet lightweight. The moldable compositions can be formed into shaped cores and cured to provide a variety of articles. Optionally, a layer of reinforcing material can be applied over the shaped cores to finish and strengthen the final article.Type: ApplicationFiled: February 28, 2011Publication date: December 1, 2011Inventor: Robert Guzauskas
-
Patent number: 8039549Abstract: A process for the preparation of aqueous polymer dispersions comprising at least one lipophilic active substance by emulsion polymerization of ethylenically unsaturated monomers in an aqueous medium in the presence of at least one lipophilic active substance, wherein (i) at least one lipophilic active substance which has a water solubility of not more than 5 g/l (determined at 25° C. and 1013 mbar) and a melting point below 130° C.Type: GrantFiled: June 5, 2007Date of Patent: October 18, 2011Assignee: BASF AktiengesellschaftInventors: Andreas Brockmeyer, Roland Ettl, Rainer Dyllick-Brenzinger
-
Publication number: 20110124810Abstract: A modified polyacrylonitrile fiber and its preparation process and use are disclosed. A biological protein is used as a modifier of polyacrylonitrile fiber. The weight content of fiber components is as follows: the acrylonitrile monomer 50.0-98.8%, the initiator 0.1-0.4%, the biological protein 1.0-50.0%. The preparation process of the modified polyacrylonitrile fiber comprises the following steps: 1. preparing the biologic protein solution, 2. preparing spinning dope of the modified polyacrylonitrile fiber, 3. preparing the modified polyacrylonitrile fiber. The filament titer of the modified fiber is 30-100 dtex. The fiber is suitable for making synthetic hair product such as hairpieces, and resembles well natural human hair.Type: ApplicationFiled: January 28, 2011Publication date: May 26, 2011Applicant: HIKING GROUP CO., LTD.Inventors: Jianhua ZHANG, Xingxiang ZHANG, Xuechen WANG, He CUI, Jianjin NIU
-
Patent number: 7714038Abstract: Polyolefin waxes bearing (meth)acrylate groups, process for preparing them and their use.Type: GrantFiled: March 2, 2006Date of Patent: May 11, 2010Assignee: BASF AktiengesellschaftInventors: Dietmar Haering, Bernhard Hauer, Thomas Pfeiffer, Andreas Fechtenkoetter, Harald Larbig, Erich Beck
-
Patent number: 7601765Abstract: The present invention relates to processes for preparing actinic-radiation-curable and/or dual-cure poly(meth)acrylates by preparing a poly(meth)acrylate containing hydroxy-functional side chains and transesterifying or esterifying the poly(meth)acrylate containing hydroxy-functional side chains with a (meth)acrylate or (meth)acrylic acid. The present invention further relates to the actinic-radiation-curable and/or dual-cure poly(meth)acrylates themselves and to the use of the actinic-radiation-curable and/or dual-cure poly(meth)acrylates in the preparation of dispersions or as a component in coating formulations and topcoats comprising at least one actinic-radiation-curable and/or dual-cure poly(meth)acrylate.Type: GrantFiled: November 5, 2003Date of Patent: October 13, 2009Assignee: BASF Coatings AGInventors: Heinz-Peter Rink, Susanne Neumann, Uwe Meisenburg, Karl-Heinz Joost, Dietmar Häring, Bernhard Hauer
-
Publication number: 20090243143Abstract: A modified polyacrylonitrile fiber and its preparation process and use are disclosed. An animal hair micro powder is used as a modifier for polyacrylonitrile polymer. The weight percent of a monomer composition is as follows: acrylonitrile monomer 50.0-98.8%, initiator 0.1-0.4%, animal hair micro powder 1.0-50.0%. The preparation process of the modified polyacrylonitrile fiber comprises the following steps: 1. preparing the animal hair micro powder suspension, 2. preparing spinning dope of the modified polyacrylonitrile fiber, 3. preparing the modified polyacrylonitrile fiber. The fiber is suitable for making artificial synthetic hair product such as hairpieces, and resembles well natural human hair.Type: ApplicationFiled: June 12, 2009Publication date: October 1, 2009Applicant: HIKING GROUP CO., LTD.Inventors: Xingxiang ZHANG, Jianhua ZHANG, He CUI, Xuechen WANG, Jianjin NIU
-
Publication number: 20090178773Abstract: A process for the preparation of aqueous polymer dispersions comprising at least one lipophilic active substance by emulsion polymerization of ethylenically unsaturated monomers in an aqueous medium in the presence of at least one lipophilic active substance, wherein (i) at least one lipophilic active substance which has a water solubility of not more than 5 g/l (determined at 25° C. and 1013 mbar) and a melting point below 130° C.Type: ApplicationFiled: June 5, 2007Publication date: July 16, 2009Applicant: BASF SEInventors: Andreas Brockmeyer, Roland Ettl, Rainer Dyllick-Brenzinger
-
Patent number: 7029755Abstract: The invention is drawn to silane copolymers prepared from the reaction of one or more polyisocyanates with one or more lubricious polymers having at least two functional groups, which may be the same or different, that are reactive with an isocyanate functional group and with one or more organo-functional silanes having at least two functional groups, which may be the same or different, that are reactive with an isocyanate functional group and at least one functional group reactive with a silicone rubber substrate. The silane copolymers of the invention can be used as coatings that are elastic when dry, lubricious when wet, and resist wet abrasion. These copolymers are useful as coatings for polysiloxane (rubber) and other difficult to coat substrates, especially for medical devices, such as catheters. These silane copolymers can contain active agents such as antimicrobials, pharmaceuticals, herbicides, insecticides, algaecides, antifoulants, and antifogging agents.Type: GrantFiled: May 30, 2003Date of Patent: April 18, 2006Assignee: C. R. Bard, Inc.Inventors: Richard N. Terry, Kevin Walsh
-
Patent number: 6649381Abstract: A polyhydroxyalkanoate having a monomer unit composition represented by General Formula (1): AmB(1−m) (1) wherein A is represented by General Formula (2), B is at least one selected from the group consisting of monomer units represented by General Formula (3) or (4), and m has a value of 0.Type: GrantFiled: April 11, 2003Date of Patent: November 18, 2003Assignee: Canon Kabushiki KaishaInventors: Tsutomu Honma, Toyoko Kobayashi, Tetsuya Yano, Shin Kobayashi, Takeshi Imamura, Sakae Suda, Takashi Kenmoku
-
Patent number: 6596401Abstract: The invention is drawn to silane copolymers prepared from the reaction of one or more polyisocyanates with one or more lubricious polymers having at least two functional groups, which may be the same or different, that are reactive with an isocyanate functional group and with one or more organo-functional silanes having at least two functional groups, which may be the same or different, that are reactive with an isocyanate functional group and at least one functional group reactive with a silicone rubber substrate. The silane copolymers of the invention can be used as coatings that are elastic when dry, lubricious when wet, and resist wet abrasion. These copolymers are useful as coatings for polysiloxane (rubber) and other difficult to coat substrates, especially for medical devices, such as catheters. These silane copolymers can contain active agents such as antimicrobials, pharmaceuticals, herbicides, insecticides, algaecides, antifoulants, and antifogging agents.Type: GrantFiled: May 10, 2000Date of Patent: July 22, 2003Assignee: C. R. Bard Inc.Inventors: Richard N. Terry, Kevin Walsh
-
Patent number: 6586559Abstract: The present invention relates to new polyamide oligomers. These oligomers can be conjugated to lipids, nucleic acids, peptides, proteins, etc. The oligomer-lipid conjugates can be used to form liposomes, virusomes, micelles, etc., optionally containing drugs or biological agents. The polyamide oligomers are heterobifunctional allowing the attachment of other suitable ligand compounds (e.g., a targeting moiety). In addition, methods of use for the liposomes, virusomes, micelles, etc., are provided.Type: GrantFiled: August 30, 2001Date of Patent: July 1, 2003Assignee: Inex Pharmaceuticals CorporationInventor: Steven Michial Ansell
-
Patent number: 6586505Abstract: This invention relates to aqueous resin dispersions comprising water, resin, a surfactant, and a caseinate. This invention also relates to the process for producing the aqueous resin dispersion and to adhesives formulated with the aqueous resin dispersion.Type: GrantFiled: January 21, 1997Date of Patent: July 1, 2003Assignee: Eastman Chemical Resins, Inc.Inventors: Michael J. Cronin, Peter M. Dunckley, George J. Kutsek
-
Patent number: 6475504Abstract: What is disclosed is a method for the formation of unique poly(vinyl alcohol) hydrogels, articles that are made from such hydrogels, unique odor-providing pest repellent compositions and their uses to repel pests.Type: GrantFiled: October 25, 1995Date of Patent: November 5, 2002Inventor: Howard Franklin Stewart
-
Patent number: 6306955Abstract: A process is disclosed, by which protein can be removed easily and efficiently from natural rubber latex so that deproteinized natural rubber latex can be produced with high productivity and low cost. Particularly, a process for the production of deproteinized natural rubber latex is disclosed, which comprises treating natural rubber latex with a proteolytic enzyme and a surfactant to decompose protein in natural rubber latex, washing the treated natural rubber latex in the presence of a salt. According to the process, deproteinized natural rubber latex useful as a counter-allergy material having stable qualities can be produced easily with high productivity and low cost.Type: GrantFiled: March 2, 1999Date of Patent: October 23, 2001Assignees: Sumitomo Rubber Industries, Ltd, Kao CorporationInventors: Atsuko Kawasaki, Shinichi Nakade, Toshiaki Sakaki
-
Patent number: 6150437Abstract: Flow improving agents for binder suspensions containing cement are described, which consist of:a) Graft polymers which have been prepared by radical grafting of a polyalkylene oxide of the general formula (I) with an ethylenically unsaturated mono- or dicarboxylic acid or the anhydride thereof, and then by derivatizing with a primary or secondary amine and/or alcohol, and also ofb) Casein.These flow improving agents have the advantage that the ability to flow is considerably improved in comparison, for example, with casein alone, and the improved ability to flow is preserved over a longer period of time.Type: GrantFiled: June 7, 1995Date of Patent: November 21, 2000Assignee: SKW Trostberg AktiengesellschaftInventors: Konrad Wutz, Alfred Kern, Josef Weichmann
-
Patent number: 6060558Abstract: Suspension polymers having high swellability have low contents of soluble fractions if aliphatic peroxy esters are used as polymerization initiators.Type: GrantFiled: May 14, 1999Date of Patent: May 9, 2000Assignee: Bayer AktiengesellschaftInventors: Wolfgang Podszun, Olaf Halle, Werner Struver, Robert Bloodworth, Holger Lutjens
-
Patent number: 5962624Abstract: A linear polyester is made by a process reacting polyols comprising at least two primary alcohol groups and at least one secondary alcohol or amino group and a dicarboxylic acid or a dicarboxylic acid ester in the presence of an effective amount of a lipase derived from Candida cylindracea, Candida lipolytica, Candida rugosa, Candida antarctica, Candida utilis, Chromobacterium viscosum, Geotrichum viscosum, Geotrichum candidum, Mucor javanicus, Mucor miehei, Porcine pancreas, Pseudomonas species, specifically Pseudomonas fluorescens, Pseudomonas cepacia, Pseudomonas pseudoalkaligenes, Pseudomonas alkaligenes, Thermomyces species, Rhizopus arrhizus, Rhizopus delemar, Rhizopus niveus, Rhizopus oryzae, Rhizopus javanicus, Aspergillus niger, Penicillium roquefortii, Penicillium camembertii or an esterase derived from Bacillus species, specifically Bacillus thermoglucosidasius; Mucor miehei, Horse liver, Saccharomyces cerevisiae, Pigs liver or combinations thereof.Type: GrantFiled: March 10, 1998Date of Patent: October 5, 1999Assignee: Hendel Kommanditgesellschaft auf AktienInventors: Anja Vonderhagen, Jeffrey A. Gates, Karlheinz Hill, Martin Lagarden, Holger Tesmann
-
Patent number: 5948857Abstract: 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: GrantFiled: June 4, 1998Date of Patent: September 7, 1999Assignee: Eastman Kodak CompanyInventors: Charles C. Anderson, Brian A. Schell, Gary R. Opitz
-
Patent number: 5910537Abstract: The present invention is ultraviolet light absorbing biocompatible polymer containing the copolymerization product of a mixture of hydrophobic and hydrophilic acrylic and/or allelic monomers, graft-polymerized with telo-collagen, where the hydrophobic monomers includes at least one ultraviolet light absorbing hydrophobic acrylic or allelic monomer. The present material is useful in the production of deformable lenses, for example, intraocular lenses, refractive intraocular contact lenses, and standard contact lenses useful, for example, for correcting aphekia, myopia and hypermetropia.Type: GrantFiled: May 28, 1997Date of Patent: June 8, 1999Assignee: STAAR Surgical Company Inc.Inventors: Vladimir Feingold, Alexei V. Osipov
-
Patent number: 5908893Abstract: A process is disclosed, by which protein can be removed easily and efficiently from natural rubber latex so that deproteinized natural rubber latex can be produced with high productivity and low cost. Particularly, a process for the production of deproteinized natural rubber latex is disclosed, which comprises treating natural rubber latex with a proteolytic enzyme and a surfactant to decompose protein in natural rubber latex, washing the treated natural rubber latex in the presence of a salt. According to the process, deproteinized natural rubber latex useful as a counter-allergy material having stable qualities can be produced easily with high productivity and low cost.Type: GrantFiled: April 29, 1997Date of Patent: June 1, 1999Assignees: Sumitomo Rubber Industries, Ltd., Kao CorporationInventors: Atsuko Kawasaki, Shinichi Nakade, Toshiaki Sakaki
-
Patent number: 5889103Abstract: A polymer scale preventive agent for use in polymerization of a monomer having an ethylenically unsaturated double bond, comprising an alkaline solution containing (A) a condensation product having a molecular weight of 400 to 50,000 obtained by condensing a quinone compound. This agent is applied to the inner wall surfaces of a polymerization vessel, and dried to form a coating. Such a vessel is effective in preventing polymer scale deposition, not only on the areas located in the liquid-phase region but also on the areas around the interface between the gas and liquid phases in the vessel, and is useful in producing a polymer that shows few fish eyes and good whiteness when formed into sheets or the like.Type: GrantFiled: October 20, 1997Date of Patent: March 30, 1999Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Toshihide Shimizu, Mikio Watanabe
-
Patent number: 5858746Abstract: Water soluble macromers are modified by addition of free radical polymerizable groups, such as those containing a carbon-carbon double or triple bond, which can be polymerized under mild conditions to encapsulate tissues, cells, or biologically active materials. The polymeric materials are particularly useful as tissue adhesives, coatings for tissue lumens including blood vessels, coatings for cells such as islets of Langerhans, coatings, plugs, supports or substrates for contact with biological materials such as the body, and as drug delivery devices for biologically active molecules.Type: GrantFiled: January 25, 1995Date of Patent: January 12, 1999Assignee: Board of Regents, The University of Texas SystemInventors: Jeffrey A. Hubbell, Chandrashekhar P. Pathak, Amarpreet S. Sawhney, Neil P. Desai, Jennifer L. Hill, Syed F. A. Hossainy
-
Patent number: 5854319Abstract: The present invention relates to a composition, process for preparation and use of a novel emulsion composition in the personal care industry. The composition when applied to hair provides outstanding lubrication, and delivers amino acids or proteins to the hair fiber. This aides in the manageability of the hair and remediates damage from treatment processes like permanent waving, dying and relaxing of the hair as well as environmental effects upon the hair.Type: GrantFiled: November 30, 1995Date of Patent: December 29, 1998Assignees: Lambent Technologies Inc, Biosil Technologies IncInventors: Anthony J. O'Lenick, Jr., Charles W. Buffa
-
Patent number: 5661218Abstract: The present invention is biocompatible polymer containing the copolymerization product of a mixture of hydrophobic and hydrophilic acrylic and/or allelic monomers, graft-polymerized with telo-collagen. The present material is useful in the production of deformable lenses, for example, intraocular lenses, refractive intraocular contact lenses, and standard contact lenses useful, for example, for correcting aphekia, myopia and hypermetropia.Type: GrantFiled: June 7, 1995Date of Patent: August 26, 1997Assignee: Staar Surgical Company, Inc.Inventors: Vladimir Feingold, Alexei V. Osipov
-
Patent number: 5654388Abstract: The present invention is biocompatible polymer containing the copolymerization product of a mixture of hydrophobic and hydrophilic acrylic and/or allelic monomers, graft-polymerized with telo-collagen. The present material is useful in the production of deformable lenses, for example, intraocular lenses, refractive intraocular contact lenses, and standard contact lenses useful, for example, for correcting aphekia, myopia and hypermetropia.Type: GrantFiled: June 7, 1995Date of Patent: August 5, 1997Assignee: Staar Surgical Company, Inc.Inventors: Vladimir Feingold, Alexei V. Osipov
-
Patent number: 5654363Abstract: The present invention is biocompatible polymer containing the copolymerization product of a mixture of hydrophobic and hydrophilic acrylic and/or allelic monomers, graft-polymerized with telo-collagen. The present material is useful in the production of deformable lenses, for example, intraocular lenses, refractive intraocular contact lenses, and standard contact lenses useful, for example, for correcting aphekia, myopia and hypermetropia.Type: GrantFiled: June 7, 1995Date of Patent: August 5, 1997Assignee: Staar Surgical Company, Inc.Inventors: Vladimir Feingold, Alexei V. Osipov
-
Patent number: 5654349Abstract: The present invention is biocompatible polymer containing the copolymerization product of a mixture of hydrophobic and hydrophilic acrylic and/or allelic monomers, graft-polymerized with telo-collagen. The present material is useful in the production of deformable lenses, for example, intraocular lenses, refractive intraocular contact lenses, and standard contact lenses useful, for example, for correcting aphekia, myopia and hypermetropia.Type: GrantFiled: June 7, 1995Date of Patent: August 5, 1997Assignee: Staar Surgical Company, Inc.Inventors: Vladimir Feingold, Alexei V. Osipov
-
Patent number: 5319046Abstract: A novel synthesis of N-acryloyl-tris-(hydroxymethyl)aminomethane (NAT) is described. The polymerization kinetics and transparency of the poly(NAT) gels crosslinked by a crosslinker (CL) e.g. N,N'-methylenebisacrylamide (Bis), i.e. poly(NAT+Bis) polymer, are shown. Poly(NAT+Bis) gradient (4-24%) gels were prepared and found to resolve native proteins according to their size. The exclusion limit of these gels is over 3.times.10.sup.6 Da. This is more than threefold higher than the exclusion limit of the polyacrylamide gradient gel of the same concentration. Therefore poly(NAT+CL) gels are better than polyacrylamide gels for the resolution of large proteins. It was demonstrated that poly(NAT+CL)-polyacrylamide composite gels could be prepared. The poly(NAT+CL) gels were found to be advantageous also for isoelectric focussing in carrier ampholytes or immobilized pH gradients. Poly(NAT+CL) gels are also very good for separation of nucleic acids.Type: GrantFiled: January 31, 1989Date of Patent: June 7, 1994Assignee: Elchrom, Ltd.Inventors: Branko Kozulic, Klaus Mosbach
-
Patent number: 5208075Abstract: Water-soluble or water-dispersible grafts of proteins with monoethylenically unsaturated monomers are used as sizing agents for staple fiber and filament yarns.Type: GrantFiled: May 26, 1992Date of Patent: May 4, 1993Assignee: BASF AktiengesellschaftInventors: Matthias Kroner, Manfred Niessner, Heinrich Hartmann, Dieter Voelker, Juergen Hartmann, Holger Schoepke
-
Patent number: 5106743Abstract: A method of growing anchorage-dependent cells is disclosed in which a substrate comprising a hydrogel is employed. The hydrogel is formed from an aqueous solution gelled with a crosslinked polymer of a hydrophilic monomer and includes a macromolecule capable of supporting cell growth.Type: GrantFiled: June 18, 1985Date of Patent: April 21, 1992Assignee: Trustees of Boston UniversityInventors: Carl Franzblau, Barbara A. Faris, Linda Civerchia-Perez
-
Patent number: 5104914Abstract: 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: GrantFiled: May 10, 1990Date of Patent: April 14, 1992Assignee: Ilford LimitedInventors: Peter J. Elton, John L. Cawse
-
Patent number: 5077336Abstract: The present invention relates to a first low-temperature insulating material which comprises polyvinyl chloride, a plasticizer, a water-containing or absorbing gel or an aqueous solution of a water-soluble polymer and an emulsifier and a second low-temperature insulating material which comprises polyvinyl chloride gelled by mixing with a plasticizer and a surface-covered, water-containing hydrogel. The insulating materials are inexpensive and show excellent heat-insulating properties and excellent flexibility at low temperatures.Type: GrantFiled: November 16, 1988Date of Patent: December 31, 1991Assignee: Sumitomo Rubber Industries, Ltd.Inventors: Takefumi Nakashita, Atsuko Mitsuba, Daijiro Touji, Ichiro Tominaga, Teruo Sasaki, Yukiyasu Nakashio, Tsuneyuki Nagase
-
Patent number: 5041497Abstract: A process for preparing a co-poly(amide/peptide) by reacting polymeric or oligomeric polypeptides and polymeric or oligomeric polyamides in the presence of an effective amount of one or more aryl phosphoryl azide compounds.Type: GrantFiled: April 10, 1989Date of Patent: August 20, 1991Assignee: Allied-Signal Inc.Inventors: Himangshu R. Bhattacharjee, Jon I. Williams, Michael D. Swerdloff, Morris B. Berenbaum
-
Patent number: 5034428Abstract: A method of biomolecule immobilization is described in which the biomolecule itself or, alternatively, a monomer-conjugated biomolecule, is grafted with free monomer onto a hydrophilic, solid-phase, polymeric substrate which has been pre-irradiated with ionizing radiation. The pre-irradiation step is carried out, preferably at -78.degree. C. in air, while the grafting step is carried out at 0.degree. C. in a substantially oxygen-free atmosphere. The technique is applicable to immobilization of a wide variety of biomolecules, such as enzymes, catalysts, hormones, lectins, drugs, vitamins, antibodies, antigens, nucleic acids, DNA and RNA segments, pesticides, dyes and fertilizers. The products may be used for therapeutic or diagnostic applications or bioseparations.Type: GrantFiled: May 4, 1989Date of Patent: July 23, 1991Assignee: Board of Regents of the University of WashingtonInventors: Allan S. Hoffman, Liang C. Dong
-
Patent number: 4948835Abstract: A process for producing a water-soluble polyelectrolyte which comprises reacting acrylic acid and/or methacrylic acid with ammonium carbonate at a temperature of 15.degree.-20.degree. C. and at a molar ratio of the acrylic acids to ammonium carbonate of 1-4:1 respectively; the resulting reaction mass is added with hydrogen peroxide in an amount of 0.1-1.0% by mass of the acrylic acids and with a 5-14% aqueous solution of a joiner's glue based on animal-origin proteins in an amount of 0.7-2.0% by mass of acrylic acids as calculated for dry solids, the reaction mass is polymerized first at a temperature of 15.degree.-23.degree. C. for 30-60 minutes and then--at a spontaneous elevation of temperature to 110.degree.-130.degree. C.Type: GrantFiled: June 1, 1988Date of Patent: August 14, 1990Assignee: Institut Khimii Akademii NaukInventors: Farykhdzhon A. Artykov, Sadriddin Zainutdinov, Karim S. Akhmedov
-
Patent number: 4829098Abstract: A method of biomolecule immobilization is described in which the biomolecule itself or, alternatively, a monomer-conjugated biomolecule, is grafted with free monomer onto a hydrophilic, solid-phase, polymeric substrate which has been pre-irradiated with ionizing radiation. The pre-irradiation step is carried out, preferably at -78.degree. C. in air, while the grafting step is carried out at 0.degree. C. in a substantially oxygen-free atmosphere. The technique is applicable to immobilization of a wide variety of biomolecules, such as enzymes, catalysts, hormones, lectins, drugs, vitamins, antibodies, antigens, nucleic acids, DNA and RNA segments, pesticides, dyes and fertilizers. The products may be used for therapeutic or diagnostic applications or bioseparations.Type: GrantFiled: June 19, 1986Date of Patent: May 9, 1989Assignee: Washington Research FoundationInventors: Allan S. Hoffman, Liang C. Dong
-
Patent number: 4670505Abstract: Disclosed are aqueous polyacrylate dispersions having improved rheological and stability characteristics prepared by the emulsion polymerization of acrylic esters, methacrylic esters and mixtures thereof in the presence of, by weight of the total monomer content, (a) from about 0.1 to 5% of at least one water-soluble amino alcohol compound and (b) from about 0.05 to about 5% of at least one protective colloid. The resultant aqueous polyacrylate dispersions are useful in the manufacture of latex paints, binders for nonwoven materials, water-based inks, paper coatings and water-borne adhesives, such as pressure-sensitive adhesives.Type: GrantFiled: August 23, 1985Date of Patent: June 2, 1987Assignee: Hercules IncorporatedInventor: Daniel H. Craig
-
Patent number: 4659771Abstract: Disclosed are aqueous polyacrylate dispersions having improved rheological and stability characteristics prepared by the emulsion polymerization of acrylic esters, methacrylic esters and mixtures thereof in the presence of at least one protective colloid, wherein the improvement comprises conducting the polymerization in the presence of, by weight of the total monomer content, from about 0.1 to 5% of at least one substantially completely water-soluble monomer having conjugated unsaturation. The resultant aqueous polyacrylate dispersions are useful in the manufacture of latex paints, binders for nonwoven materials, water-based inks, paper coatings and water-borne adhesives, such as pressure-sensitive adhesives.Type: GrantFiled: June 23, 1986Date of Patent: April 21, 1987Assignee: Hercules IncorporatedInventor: Daniel H. Craig
-
Patent number: 4582719Abstract: A process is, herein disclosed, for producing a slow release composite having a physiologically active substance encapsulated therein, which comprises preparing a system wherein one or more physiologically active substances are in contact with protein from one or more protein sources, and bringing said system into direct contact with steam at temperatures between 50.degree. C. and 100.degree. C. to denature the protein and make the same hydrophobic, to thereby make a slow release composite having the physiologically active substance dispersed, fixed and encapsulated therein.Type: GrantFiled: July 15, 1983Date of Patent: April 15, 1986Assignee: Japan Atomic Energy Research InstituteInventors: Isao Kaetsu, Masaharu Asano, Minoru Kumakura, Masaru Yoshida
-
Patent number: 4550133Abstract: Red phosphorus stabilized with cadmium salts of carboxylic acids is suitable for use as a flameproofing agent for polyamide moulding compositions.Type: GrantFiled: May 8, 1984Date of Patent: October 29, 1985Assignee: Bayer AktiengesellschaftInventors: Werner Nielinger, Karl H. Hermann, Dietrich Michael
-
Patent number: 4542184Abstract: A process for the preparation of aqueous polymer dispersions comprising polymerizing compounds with unsaturated ethylenic bonds at a temperature of 10.degree. to 100.degree. C. in the presence of an at least partially water-soluble free-radical initiator and at least one water-soluble protein and optionally present conventional adjuvants with the starting mixture containing not more than 40% of the total monomers and the remaining monomer being added by metering during the polymerization, the initiators being at least one member of the group consisting of ketone peroxides and organic hydroperoxides in an amount of at least 30 mmol per kg of total monomer mixture and optionally present water-soluble reducing agents and the amount of protein being at least 3% by weight based on the total monomer weight and at least 30% by weight is added during the polymerization and the isoelectric point of the protein is not reached or exceeded during polymerization.Type: GrantFiled: June 28, 1984Date of Patent: September 17, 1985Assignee: Wacker-Chemie GmbHInventors: Herbert Eck, Reinhard Jira
-
Patent number: 4393020Abstract: Molded fiber-reinforced thermoplastic articles are prepared by a novel two-step process involving an in situ polymerization of monomers onto the fiber followed by compression molding of the product.Type: GrantFiled: October 19, 1981Date of Patent: July 12, 1983Assignee: The Standard Oil CompanyInventors: George S. Li, John F. Jones, William M. Giffen, Jr.
-
Patent number: 4388428Abstract: Biologically stabilized compositions are prepared by subjecting to polymerization conditions an aqueous admixture comprising from 50 to about 70 weight percent solubilized collagen and from about 30 to less than 50 weight percent of an organic compound which is characterized by a polymerizable ethylenic group (>C.dbd.C<) as illustrated by N,N-dimethylacrylamide, 2-hydroxyethyl methacrylate, dimethylaminoethyl methacrylate or methoxytriethylene glycol methacrylate. The reactants employed are at least partially soluble in the aqueous reaction medium. The hydrogels thus prepared can be in the form of novel shaped articles having utility in the medical and cosmetic fields. Such hydrogels exhibit good biological stability, high water content, high oxygen permeability and sufficient mechanical strength characteristics to be useful as contact lenses.Type: GrantFiled: July 20, 1981Date of Patent: June 14, 1983Assignee: National Patent Development CorporationInventors: Petr Kuzma, Giovanina Odorisio
-
Patent number: 4385140Abstract: The present invention relates to new modified azulmic acids, several processes for their preparation and their use as intermediate products for the synthesis of numerous products.Type: GrantFiled: February 12, 1979Date of Patent: May 24, 1983Assignee: Bayer AktiengesellschaftInventors: Kuno Wagner, Kurt Findeisen
-
Patent number: 4341668Abstract: A composition containing a methylene donor, hydrophobic component containing an organic hydrophobic diluent and an isocyanate; and an aqueous component containing a water compatible aldehyde condensate and use thereof as an impregnant or bonding agent for cellulosic materials including paper, wood and cotton, and/or fibrous materials including synthetic fibers, such as rayon and nylon.Type: GrantFiled: September 16, 1980Date of Patent: July 27, 1982Assignee: Ashland Oil, Inc.Inventors: Jeffrey E. Martin, Albert F. Vozella, Golden F. Watts, Edwin R. Luckman