Plural Ethylenic Groups Patents (Class 526/295)
  • Patent number: 10316134
    Abstract: The invention relates to a method for producing radiation-curable alkenyl ether polyols, to radiation-curable alkenyl ether polyols produced using the method according to the invention, and to the use thereof for the synthesis of radiation-interlinkable oligomers or polymers by means of polyaddition reactions or polycondensation reactions, in particular for the synthesis of radiation-curable polyesters, polyethers, polyurethanes and polyureas, particularly preferably UV-curable polyurethanes. The invention also relates to radiation-curable polyurethane polymers that are obtained by reacting at least one alkenyl ether polyol according to the invention with a polyisocyanate.
    Type: Grant
    Filed: March 7, 2017
    Date of Patent: June 11, 2019
    Assignees: Henkel AG & Co. KGaA, Max-Planck-Gesellschaft Zur Foerderung Der Wissenschaften E.V.
    Inventors: Andreas Taden, Katharina Landfester, Stefan Kirschbaum
  • Patent number: 9493683
    Abstract: Provided is a polychloroprene latex extremely superior in adhesion properties. According to the present invention, chloroprene or a mixture of chloroprene and a monomer copolymerizable with chloroprene is polymerized in the presence of a surfactant in an aqueous medium, in which the surfactant's concentration is lower than its critical micelle concentration (CMC) to obtain a polychloroprene latex. The polychloroprene latex produced according to the present invention is extremely superior in adhesion properties and others and give a smaller amount of deposits during production.
    Type: Grant
    Filed: July 8, 2010
    Date of Patent: November 15, 2016
    Assignees: Denka Company Limited, Tohoku University
    Inventors: Naoki Kobayashi, Mikio Konno, Daisuke Nagao, Yoshihiro Mashiko, Toshiaki Otsu
  • Patent number: 9079171
    Abstract: Polymers useful as in non-enzymatic saccharification processes are provided. Provided are also methods for hydrolyzing cellulosic materials into monosaccharides and/or oligosaccharides using these polymeric acid catalysts.
    Type: Grant
    Filed: February 27, 2012
    Date of Patent: July 14, 2015
    Assignee: Midori USA, Inc.
    Inventors: John M. Geremia, Brian M. Baynes, Ashish Dhawan
  • Patent number: 9023983
    Abstract: The invention is directed to an extruder (10), particularly for extruding a synthetic rubber product, which comprises a barrel (24), one or several extruder elements (12, 14), particularly one or several extruder screws and/or a kneader elements (14), arranged inside the barrel (24) for conveying the product, optionally an inlet port for feeding a stripping agent into the barrel (24) and an outlet port for removing volatile compounds from the product and, where applicable, the stripping agent. According to the invention a perforated die plate (26) is fixed to the barrel (24) in flow direction before the outlet port. Since the die plate (26) is not fixed to the extruder elements (12, 14) but to the barrel (24) a circumferential clearance between the die plate (26) and the barrel (24) is prevented so that no extruded material is passing the die plate (26) radially outside.
    Type: Grant
    Filed: July 22, 2011
    Date of Patent: May 5, 2015
    Assignee: LANXESS Deutschland GmbH
    Inventors: Hanns-Ingolf Paul, Udo Wiesner, Jörg Kirchhoff, Thomas König, Klemens Kohlgrüber
  • Patent number: 8940848
    Abstract: The present invention relates to a branched conjugated diene copolymer which is useful for preparing a rubber composition, having high uniformity of a temperature dependence curve of a viscoelasticity tan ?, for a tire, a rubber composition comprising the copolymer, and a pneumatic tire produced using the rubber composition for a tire. The branched conjugated diene copolymer is composed of monomer components comprising a branched conjugated diene compound represented by a general formula (1): wherein R1 represents an aliphatic hydrocarbon group having 6 to 11 carbon atoms, and an aromatic vinyl compound represented by a general formula (2): wherein R2 represents an aromatic hydrocarbon group having 6 to 10 carbon atoms, and R5 represents a hydrogen atom or the like, and a copolymerization ratio (m) of the aromatic vinyl compound (2) is 45% by mass or more.
    Type: Grant
    Filed: September 4, 2013
    Date of Patent: January 27, 2015
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventor: Kensuke Washizu
  • Publication number: 20140370551
    Abstract: This disclosure provides a business method and system for generating sugars and recycling a non-biomass component from a waste stream. In some embodiments, a waste stream comprising cellulose and a non-biomass component is saccharified to produce glucose, followed by recovery of the glucose and non-biomass component, which may be recycled to another site associated with production of a cellulose-containing product that contains the non-biomass component. In certain scenarios, the waste stream is generated at a first location, cellulose pretreatment (if desired) and hydrolysis are conducted at a second location, and the non-biomass component is recycled to the first location or a third location. The non-biomass component may include metals, metal oxides, salts, organic compounds, inorganic compounds, oligomers, or polymers, for example.
    Type: Application
    Filed: June 16, 2014
    Publication date: December 18, 2014
    Inventors: Theodora RETSINA, Kimberly NELSON
  • Patent number: 8816030
    Abstract: Provided are a chloroprene rubber, a chloroprene rubber composition and the vulcanizate and formed body thereof superior in low-temperature properties. A chloroprene rubber is obtained by emulsion polymerization of raw monomers containing antiperiplanar trans-1-chlorobuta-1,3-diene and cis-1-chlorobuta-1,3-diene in a total amount of 0.5 mass % or more, 2,3-dichlorobuta-1,3-diene in an amount of 2.0 mass % or more, and the rest being chloroprene. A composition containing the chloroprene is vulcanized into a formed body.
    Type: Grant
    Filed: February 7, 2012
    Date of Patent: August 26, 2014
    Assignee: Denki Kagaku Kogyo Kabushiki Kaisha
    Inventors: Uichiro Yamagishi, Takashi Tachiyama, Takahiro Kozuka
  • Publication number: 20140142268
    Abstract: The invention relates to methods for isolating and obtaining polychloroprene solids, wherein an aqueous polychloroprene dispersion is brought in contact with water vapor containing coagulant, whereby the polychloroprene solid coagulates.
    Type: Application
    Filed: April 19, 2012
    Publication date: May 22, 2014
    Applicant: LANXESS DEUTSCHLAND GMBH
    Inventors: Thomas-Oliver Neuner, Heiner Stange, Rolf Josten, Rolf Feller, Mesut Fidan
  • Patent number: 8722824
    Abstract: Copolymers of acrylamide or methacrylamide, suitably modified with appropriate percentages of units deriving from comonomers of a hydrophobic nature and comonomers containing a positively charged ionic group, which are capable of effectively reducing the water permeability of a porous medium.
    Type: Grant
    Filed: December 10, 2009
    Date of Patent: May 13, 2014
    Assignee: ENI S.p.A.
    Inventors: Cecilia Querci, Matteo Russo, Riccardo Po′, Maria Anna Cardaci
  • Publication number: 20140046015
    Abstract: The invention relates to a polychloroprene solid on the basis of a polychloroprene dispersion, said solid having thixotropic properties.
    Type: Application
    Filed: April 17, 2012
    Publication date: February 13, 2014
    Applicant: LANXESS DEUTSCHLAND GMBH
    Inventors: Thomas-Oliver Neuner, Heiner Stange, Rolf Josten, Rolf Feller, Mesut Fidan
  • Publication number: 20140039142
    Abstract: The invention is directed to an extruder (10), particularly for extruding a synthetic rubber product, which comprises a barrel (24), one or several extruder elements (12, 14), particularly one or several extruder screws and/or a kneader elements (14), arranged inside the barrel (24) for conveying the product, optionally an inlet port for feeding a stripping agent into the barrel (24) and an outlet port for removing volatile compounds from the product and, where applicable, the stripping agent. According to the invention a perforated die plate (26) is fixed to the barrel (24) in flow direction before the outlet port. Since the die plate (26) is not fixed to the extruder elements (12, 14) but to the barrel (24) a circumferential clearance between the die plate (26) and the barrel (24) is prevented so that no extruded material is passing the die plate (26) radially outside.
    Type: Application
    Filed: July 22, 2011
    Publication date: February 6, 2014
    Applicant: LANXESS DEUTSCHLAND GMBH
    Inventors: Hanns-Ingolf Paul, Udo Wiesner, Jörg Kirchhoff, Thomas König, Klemens Kohlgrüber
  • Patent number: 8487060
    Abstract: Provided is a polychloroprene latex extremely favorable in adhesive properties. The present invention relates to a method of producing a polychloroprene latex, comprising polymerizing chloroprene or a mixture of chloroprene and a monomer copolymerizable with chloroprene in an aqueous medium containing a surfactant at a concentration of lower than its critical micelle concentration (CMC) and a polymer dispersant of a metal salt of aromatic sulfonic acid formalin condensate added thereto. The polymer dispersant for use is preferably a metal salt of aromatic sulfonic acid formalin condensate. The polychloroprene latex obtained can be used as an adhesive.
    Type: Grant
    Filed: August 17, 2010
    Date of Patent: July 16, 2013
    Assignees: Denki Kagaku Kogyo Kabushiki Kaisha, Tohoku University
    Inventors: Naoki Kobayashi, Mikio Konno, Daisuke Nagao, Yoshihiro Mashiko, Toshiaki Otsu
  • Publication number: 20130123372
    Abstract: The present invention is directed to stable emulsions comprising oils and a polymeric cationic emulsifier, the process to obtain said emulsions and the use of said emulsions.
    Type: Application
    Filed: November 9, 2012
    Publication date: May 16, 2013
    Applicant: BASF SE
    Inventor: BASF SE
  • Publication number: 20130058888
    Abstract: Compositions comprising soil adsorption polymers for reducing particulates in the air are provided.
    Type: Application
    Filed: September 1, 2011
    Publication date: March 7, 2013
    Inventors: Robert Joseph MCCHAIN, Robin Lynn McKiernan, Charles William Neal, Chisomaga Ugochi Nwachukwu, Steven Daryl Smith
  • Patent number: 8304491
    Abstract: The novel process provides latices of homo- and copolymers of chloroprene and of one or more further copolymerizable monomers at a higher reaction rate and hence in an improved space-time yield. The latices obtained have a high gel content, distinctly lower levels of by-products, in particular of chloroprene dimer, than prior art products, and are useful, if appropriate in concentrated form, for a wide variety of applications.
    Type: Grant
    Filed: September 28, 2011
    Date of Patent: November 6, 2012
    Inventors: Lothar Reif, Christian Lente
  • Publication number: 20120130037
    Abstract: Copolymers of acrylamide or methacrylamide, suitably modified with appropriate percentages of units deriving from comonomers of a hydrophobic nature and comonomers containing a positively charged ionic group, which are capable of effectively reducing the water permeability of a porous medium.
    Type: Application
    Filed: December 10, 2009
    Publication date: May 24, 2012
    Applicant: ENI S.p.A.
    Inventors: Cecilia Querci, Matteo Russo, Riccardo Po', Maria Anna Cardaci
  • Publication number: 20120101216
    Abstract: The invention relates to a method for producing polymeric solids free of auxiliary emulators starting from polymer latices (dispersion), wherein a polymer dispersion with a starting ph-value greater than 9 is set to a ph-value of 6 to 9 by adding gaseous carbon dioxide and the polymer dispersion is subsequently coagulated by shearing and/or freezing.
    Type: Application
    Filed: March 17, 2010
    Publication date: April 26, 2012
    Applicant: LANXESS DEUTSCHLAND GMBH
    Inventors: Dirk Achten, Peter Kueker, Jürgen Kempkes, Bianka Lorenz, Werner Obrecht, Annika Stobrawe
  • Patent number: 8063136
    Abstract: The novel process provides latices of homo- and copolymers of chloroprene and of one or more further copolymerizable monomers at a higher reaction rate and hence in an improved space-time yield. The latices obtained have a high gel content, distinctly lower levels of by-products, in particular of chloroprene dimer, than prior art products, and are useful, if appropriate in concentrated form, for a wide variety of applications.
    Type: Grant
    Filed: August 29, 2007
    Date of Patent: November 22, 2011
    Assignee: LANXESS Deutschland GmbH
    Inventors: Lothar Reif, Christian Lente
  • Publication number: 20110195889
    Abstract: The invention relates to a composition for processing and/or modifying surfaces, particularly hard surfaces or textile surfaces.
    Type: Application
    Filed: August 21, 2009
    Publication date: August 11, 2011
    Applicant: Rhodia Operations
    Inventors: Katerina Karagianni, Wojciech Bzducha
  • Publication number: 20110184089
    Abstract: The invention relates to a process for extruding plastic compositions, in particular polymer melts and mixtures of polymer melts, above all thermoplastics and elastomers, particularly preferably polycarbonate and polycarbonate blends, also with the incorporation of other substances such as for example solids, liquids, gases or other polymers or other polymer blends with improved optical characteristics, with the assistance of a multi-screw extruder with specific screw geometries.
    Type: Application
    Filed: June 12, 2009
    Publication date: July 28, 2011
    Applicant: Bayer MaterialScience AG
    Inventors: Michael Bierdel, Thomas König, Carsten Conzen, Ulrich Liesenfelder, Klemens Kohlgrüber, Reiner Rudolf, Johann Rechner
  • Patent number: 7947792
    Abstract: A polymerization initiator, a first polymerizable compound, and a second polymerizable compound are poured into a hollow of a first member (12). The first and second polymerizable compounds are copolymerized to produce a second member (16). The second member (16) is produced by forming a first layer (21) on an inner wall of the first member (12) and sequentially forming a layer over a precedingly formed layer. To form each layer, the first and second polymerizable compounds are put in the hollow of the first member (12), satisfying 1/99?W2/(W1+W2)?? when W1 is a weight of the first polymerizable compound, and W2 is a weight of the second polymerizable compound. The first and second polymerizable compounds are mixed such that the value of W2/(W1+W2) increases from the first layer (21) toward an nth layer.
    Type: Grant
    Filed: January 23, 2007
    Date of Patent: May 24, 2011
    Assignee: FUJIFILM Corporation
    Inventor: Masataka Sato
  • Publication number: 20100249351
    Abstract: A novel process is used to prepare synthetic rubbers (B) which feature very narrow molecular weight distribution and a correspondingly low value for the polydispersity index. The preparation process encompasses the treatment of a synthetic rubber with ultrasound, where the resultant synthetic rubber (B) has a lower weight-average molecular weight (Mw) than the synthetic rubber (A) used. The resultant synthetic rubbers (B) have excellent suitability for processing via extruder processes or injection-moulding processes.
    Type: Application
    Filed: June 7, 2010
    Publication date: September 30, 2010
    Applicant: LANXESS DEUTSCHLAND GMBH
    Inventors: Lothar Reif, Stephen Pask
  • Publication number: 20100240563
    Abstract: The claims encompass hard surface cleaner and hard surface treatment compositions containing particular ampholytic polymers which impart not only good residual cleaning properties but in particular give fast drying properties to the cleaning compositions. The polymers are for example terpolymers formed from diallydialkyammonium chloride, anionic monomers and N,N di-C1-C8 alkyl(meth)acrylamides.
    Type: Application
    Filed: March 18, 2010
    Publication date: September 23, 2010
    Inventors: Bingham S. Jaynes, Ashish Taneja, Xian-Zhi Zhou, Joseph A. Lupia
  • Patent number: 7799881
    Abstract: A process is described for the preparation of latices based on polychloroprene, comprising the polymerization of chloroprene in the presence of a first latex essentially consisting of polymeric particles produced in a first polymerization of a composition of monomers comprising (a) alpha-, beta-unsaturated carboxylic acids and/or derivatives thereof, (b) vinyl aromatic compounds, (c) conjugated dienes; said first latex having a content of alpha-, beta-unsaturated carboxylic acids, expressed as parts of alpha-, beta-unsaturated carboxylic acids per 100 grams of polymeric particles, ranging from 1 to 15%, thus obtaining a final latex, the solid particles of said final latex having an quantity of chloroprene ranging from 50 to 95% by weight, preferably from 80 to 95% by weight.
    Type: Grant
    Filed: June 3, 2009
    Date of Patent: September 21, 2010
    Assignee: Polimeri Europa S.p.A.
    Inventors: Romano Lima, Augusto Fabbri
  • Publication number: 20100216958
    Abstract: Isobutene, isoprene, and butadiene are obtained from mixtures of C4 and/or C5 olefins by dehydrogenation. The C4 and/or C5 olefins can be obtained by dehydration of C4 and C5 alcohols, for example, renewable C4 and C5 alcohols prepared from biomass by thermochemical or fermentation processes. Isoprene or butadiene can be polymerized to form polymers such as polyisoprene, polybutadiene, synthetic rubbers such as butyl rubber, etc. in addition, butadiene can be converted to monomers such as methyl methacrylate, adipic acid, adiponitrile, 1,4-butadiene, etc. which can then be polymerized to form nylons, polyesters, polymethylmethacrylate etc.
    Type: Application
    Filed: February 24, 2010
    Publication date: August 26, 2010
    Inventors: Matthew W. Peters, Joshua D. Taylor, Leo E. Manzer, David E. Henton
  • Patent number: 7754837
    Abstract: Disclosed are telechelic fluoropolymers and methods for forming the polymers. The fluoropolymers can be formed via step-growth polymerization of bis(trifluorovinyloxy)biphenyls with bisphenols. The formed telechelic polymers possess fluoroolefin functionality at the trifluorovinyl aromatic ether endgroups. Internal groups can include difluorodioxyvinylene groups and trifluoroethyl groups. Formation methods of the telechelic polymers can be controlled so as to control molecular weight and degree of unsaturation of the polymers. The end groups and the internal groups can be further reacted independently of each other, e.g., under different temperature conditions, to form a variety of polymers and/or crosslinked polymeric networks.
    Type: Grant
    Filed: March 7, 2008
    Date of Patent: July 13, 2010
    Assignee: Clemson University Research Foundation
    Inventors: Dennis W. Smith, Jr., Scott T. Iacono
  • Patent number: 7691934
    Abstract: The invention is directed to a method of making ultra high molecular weight diallyldialkyl ammonium salt homopolymers, compositions thereof and use of compositions as a fixative in papermaking.
    Type: Grant
    Filed: October 19, 2006
    Date of Patent: April 6, 2010
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Zhiqiang Song, George William Schriver, Holger Reinicke
  • Publication number: 20100006511
    Abstract: A method for clarifying an aqueous medium containing suspended material is provided. The method includes dispersing a treatment additive in the aqueous medium containing the suspended material for coagulating and flocculating the suspended material and then separating the suspended material from the treated aqueous medium. The treatment additive includes a crosslinked diallyldialkylammonium halide polymer having from about 0.001 molar percent to less than 0.1 molar percent of a crosslinking agent. A treatment additive composition is also provided.
    Type: Application
    Filed: July 11, 2008
    Publication date: January 14, 2010
    Inventors: Gerald C. Walterick, JR., William S. Carey, Fang Deng
  • Patent number: 7625988
    Abstract: The present invention is directed to novel flame retardant monomers and polymers, wherein the flame retardant properties of the polymers are provided by functionality in pendant groups attached to a polymer backbone (as opposed to the polymer backbone itself possessing flame retardant properties. The present invention is also directed to methods of making such polymers and monomers, and articles of manufacture incorporating such monomers and polymers.
    Type: Grant
    Filed: June 18, 2004
    Date of Patent: December 1, 2009
    Assignee: William Marsh Rice University
    Inventors: James M. Tour, Joshua L. Jurs, Jason J. Stephenson
  • Patent number: 7604918
    Abstract: A photosensitive polymer for a photoresist and a photoresist composition having the same are provided. The photosensitive polymer for a photoresist includes the repeating unit represented by the formula below: wherein R1 is a C1-C20 hydrocarbon group or a C1-C20 hetero hydrocarbon group including at least one hetero atom selected from the group consisting of nitrogen, fluorine and sulfur.
    Type: Grant
    Filed: January 22, 2007
    Date of Patent: October 20, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang-jun Choi, Han-ku Cho
  • Publication number: 20090117071
    Abstract: A cleaning composition for hard surfaces containing a polymeric compound comprising a main backbone derived from at least the following monomeric components: (I) 20 to 99.9% by weight of at least one cationic monomer according to formula (I) wherein R1 and R2 are, independently of one another, hydrogen or C1-C4 alkyl; R3 and R4 are, independently of one another, hydrogen or alkyl, hydroxyalkyl, carboxyl alkyl, carboxyamide alkyl or alkoxyalkyl having from 1 to 18 carbon atoms; and Y represents an anion, and (II) 0.1 to 80% by weight of a hydrophobic unsaturated nonionic monomer that polymerizes in the presence of an initiator; optionally up to 60% by weight of a water-soluble monomer (III) which is different from either monomer (I) or monomer (II); and optionally reactant (IV), a crosslinking agent in an amount between 0 to 10% by weight, gives improved soil removal properties, antimicrobial and biofilm suppression properties as well as resistance to resoiling and staining.
    Type: Application
    Filed: November 28, 2005
    Publication date: May 7, 2009
    Inventors: Zhiqiang Song, Bingham Scott Jaynes, Jianwen Mao, Andrea Preuss
  • Publication number: 20080311415
    Abstract: The present invention concerns the use, in the surface treatment of waterproofed wood, of an aqueous dispersion comprising at least one latex obtained by emulsion polymerization of a mixture of monomers comprising at least one acrylic monomer B comprising at least one ureido function.
    Type: Application
    Filed: August 30, 2006
    Publication date: December 18, 2008
    Applicant: LAPEYRE
    Inventors: Jean-Christophe Castaing, William Bett, Jean-Noel Bousseau
  • Patent number: 7425597
    Abstract: The molecular weight of cationic polymers, such as diallyldialkyl ammonium chloride, can be increased by controlled addition of a water-soluble radical initiator at an elevated reaction temperature with agitation to prepare high molecular weight, crosslinked, water-soluble cationic polymers.
    Type: Grant
    Filed: May 24, 2007
    Date of Patent: September 16, 2008
    Assignee: Ciba Specialty Chemicals Water Treatments Ltd.
    Inventor: Zhiqiang Song
  • Patent number: 7407561
    Abstract: The present invention relates to a method for controlling pitch and stickies deposit in a pulp and papermaking process using crosslinked cationic polymers made by controlled addition of a water soluble radical initiator at reaction temperature with agitation for chain extension and crosslinking.
    Type: Grant
    Filed: April 20, 2004
    Date of Patent: August 5, 2008
    Assignee: Ciba Specialty Chemicals Water Treatments Ltd.
    Inventors: Zhiqiang Song, Philip Anson Ford
  • Publication number: 20080076855
    Abstract: The novel process provides latices of homo- and copolymers of chloroprene and of one or more further copolymerizable monomers at a higher reaction rate and hence in an improved space-time yield. The latices obtained have a high gel content, distinctly lower levels of by-products, in particular of chloroprene dimer, than prior art products, and are useful, if appropriate in concentrated form, for a wide variety of applications.
    Type: Application
    Filed: August 29, 2007
    Publication date: March 27, 2008
    Inventors: Lothar Reif, Christian Lente
  • Publication number: 20080051544
    Abstract: A co-polymer of isobutene and 4-bromo-3-methyl-1-butene formed by direct co-polymerization in a single-step process. A continuous process for forming the co-polymer preferably comprises periodic or semi-continuous addition of catalyst to a mixed monomer solution. Semi-continuous reverse addition of the mixed monomer solution to a pre-provided catalyst solution may also be employed. The co-polymer exhibits allylic bromide functionality and is advantageously curable by either ZnO curing systems or sulfur-based curing systems.
    Type: Application
    Filed: July 31, 2007
    Publication date: February 28, 2008
    Inventor: Judit E. Puskas
  • Patent number: 7238752
    Abstract: The molecular weight of cationic polymers, such as diallyldialkyl ammonium chloride, can be increased by controlled addition of a water-soluble radical initiator at an elevated reaction temperature with agitation to prepare high molecular weight, crosslinked, water-soluble cationic polymers.
    Type: Grant
    Filed: July 27, 2005
    Date of Patent: July 3, 2007
    Assignee: Ciba Specialty Chemicals Water Treatments Ltd.
    Inventor: Zhiqiang Song
  • Patent number: 7205369
    Abstract: The molecular weight of cationic polymers, such as diallyldialkyl ammonium chloride, can be increased by controlled addition of a water-soluble radical initiator at an elevated reaction temperature with agitation to prepare high molecular weight, crosslinked, water-soluble cationic polymers.
    Type: Grant
    Filed: August 12, 2003
    Date of Patent: April 17, 2007
    Assignee: Ciba Specialty Chemicals Water Treatments Ltd.
    Inventor: Zhiqiang Song
  • Patent number: 6740719
    Abstract: Described is a process for reducing the antigenicity of sap and products made from the sap of the Hevea brasilisensis plant and other rubber plants. The process involves contacting sap or a latex rubber product with a mono or dialdehyde, a semialdehyde or any chemical containing an aldehyde group, to cross-link antigenic proteins within the sap or the latex product. The cross-linked proteins no longer have the capability to cause an allergic reaction to persons coming into contact with the latex products made by the process of the invention. The cross-linking reaction between the proteins in the latex sap and the aldehyde can take place in the solution used to the final product, or after the final latex product has been formed, or during various intermediate steps of the processes for forming the latex products.
    Type: Grant
    Filed: March 29, 2002
    Date of Patent: May 25, 2004
    Inventor: George W. Weinert
  • Patent number: 6723774
    Abstract: The invention relates to a method for producing caoutchouc particles (K) by means of emulsion polymerisation in the presence of an emulsifier and a polymerisation initiator. Said particles contain A) 80 to 100 wt. % of one or more conjugated diene monomers (A) in relation to (K) and B) 0 to 20 wt. % of one or more monoethylenically unsaturated comonomers (B) in relation to (K) in the polymerised form. The inventive method is characterised in that 1) a mixture (M1) containing water and an emulsifier is provided, 2) a mixture (M2) containing one or more monomers in the monomer or polymerised form selected from styrole, &agr;-methylstyrole, butadiene, n-butylacrylate, MMA and acrylnitrile and optionally comonomers is added, 3) polymerisation of the obtained mixture starts in the presence of a polymerisation initiator at temperature of 5 to 95° C., 4) a mixture (M3) containing 0 to 100 wt. % of the comonomers (B) in relation to (B) and 0 to 25 wt.
    Type: Grant
    Filed: September 10, 2002
    Date of Patent: April 20, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Norbert Güntherberg, Bernhard Czauderna, Michael Breulmann, Sabine Oepen, Wil Duijzings, Norbert Niessner
  • Patent number: 6673889
    Abstract: Acrylate, or methacrylate, or allylic, functionalized polyfluorooxetanes are disclosed for use in radiation curable coating compositions. These acrylate, or methacrylate, or allylic, functionalized polymers provide improvements in wetting and surface properties that have previously been provided by migratory chemicals such as waxes and oils. The partially or fully fluorinated side groups of the fluorooxetanes are believed to be disproportionately present at the interfaces between the coating and the substrate and between the coating and the atmosphere.
    Type: Grant
    Filed: September 16, 1999
    Date of Patent: January 6, 2004
    Assignee: Omnova Solutions Inc.
    Inventors: Raymond J. Weinert, Guillermina C. Garcia, James E. Robbins, Aslam Malik
  • Patent number: 6646083
    Abstract: Crosslinked polymers excellent in ion exchange capacity and catalytic activity and in resistance to thermal decomposition and widely applicable in various fields of use; a crosslinking agent which is suited for use as a raw material in the production of crosslinked polymers; a method of producing crosslinked polymers; a method of producing a spherical particle which is suited for use in the production of crosslinked polymers; a method of producing a hydroxy alkyl (meth)acrylate; and a method of producing glycols using the crosslinked polymers are provided.
    Type: Grant
    Filed: June 15, 2001
    Date of Patent: November 11, 2003
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Yoshiaki Hirano, Takehiko Morita, Takafumi Kubo, Hiroshi Yamamoto, Kenichi Takematsu, Yutaka Sugiyama
  • Patent number: 6586549
    Abstract: The present invention provides: a water-absorbing composition such that portions containing the water-absorbing composition in a high concentration exhibit excessive-liquid permeation buffering effects in absorbent articles comprising the water-absorbing composition and hydrophilic fibers; and a use of this water-absorbing composition. The water-absorbing composition comprises a water-absorbent resin and an excessive-liquid permeation buffer, wherein the water-absorbent resin is a product by a process including the step of further crosslinking the surface vicinity of a crosslinked polymer, and this water-absorbing composition is characterized by having a liquid permeation buffering index of not less than 0.
    Type: Grant
    Filed: July 6, 2000
    Date of Patent: July 1, 2003
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Takumi Hatsuda, Kazuki Kimura, Koji Miyake, Eri Goto, Katsuyuki Wada
  • Patent number: 6583234
    Abstract: Disclosed is a process which comprises (a) reacting allyl bromide with diethyl amine in a molar ratio of at least about 1 mole of allyl bromide per about 1.15 moles of diethyl amine and in a molar ratio of no more than about 1 mole of allyl bromide per about 2 moles of diethyl amine, thereby generating allyl diethyl amine in a monomer reaction mixture; (b) subsequently filtering the monomer reaction mixture to remove impurities; (c) subsequently reacting the allyl diethyl amine with allyl bromide, thereby generating solid diallyl diethyl ammonium bromide; (d) subsequently isolating the solid diallyl diethyl ammonium bromide; (e) subsequently dissolving the diallyl diethyl ammonium bromide in a solvent and adding thereto a polymerization initiator to form a polymerization reaction mixture; (f) subsequently heating the polymerization reaction mixture in a vessel equipped with a reflux condenser to a temperature of from about 90 to about 100° C.
    Type: Grant
    Filed: July 26, 2001
    Date of Patent: June 24, 2003
    Assignee: Xerox Corporation
    Inventors: Sheau V. Kao, Daniel A. Foucher, Mohammad J. Hossain, Christine E. Bedford, George Liebermann
  • Patent number: 6569968
    Abstract: A process for producing a polymer of a diallylalkylammonium halide which comprises polymerizing the diallylalkylammonium halide in the presence of a polymerization initiator in an aqueous solution containing a nitroxy radical.
    Type: Grant
    Filed: August 4, 2000
    Date of Patent: May 27, 2003
    Assignee: Kurita Water Industries Ltd.
    Inventors: Hidenori Hamabe, Katsutoshi Kubo, Tomoe Ueno
  • Patent number: 6562929
    Abstract: An objective of the invention is to provide a conjugated diene-based rubber having a specific composition and a method of producing the same, an oil extended rubber using the same, as well as a rubber composition capable of being converted into a vulcanized rubber which has a low rolling resistance, an excellent wearing resistance and the like, and is useful, for example, as a tire or the like. A conjugated diene-based rubber in the invention has a glass transition point of −60 to 0° C., an olefinically unsaturated nitrile monomer unit randomly contains in its molecular chain, its repeating units consists of 9 to 30% by mass of an olefinically unsaturated nitrile monomer unit such as acrylonitrile, 10 to 50% by mass of an aromatic vinyl monomer unit such as styrene and 20 to 81% by mass of a conjugated diene monomer unit such as 1,3-butadiene, and its Mooney viscosity [ML1+4(100° C.)] is 20 to 200.
    Type: Grant
    Filed: August 29, 2001
    Date of Patent: May 13, 2003
    Assignee: JSR Corporation
    Inventors: Tomohisa Konno, Yoshiyuki Udagawa, Toshihiro Tadaki
  • Patent number: 6528605
    Abstract: A diyne-containing (co)polymer which is soluble in organic solvents, has excellent processability, and gives a cured coating film excellent in heat resistance, solvent resistance, and low-dielectric characteristics, and mechanical strength; processes for producing the same; and a cured film. The diyne-containing (co)polymer contains at least 10 mol % repeating units represented by the following formula (1) and has a weight-average molecular weight of from 500 to 1,000,000: &Brketopenst;C≡C&Parenopenst;Y&Parenclosest;nC≡C—Ar&Brketclosest;  (1) wherein Y represents a specific bivalent organic group; Ar represents a bivalent organic group; and n represents 1.
    Type: Grant
    Filed: November 8, 2000
    Date of Patent: March 4, 2003
    Assignee: JSR Corporation
    Inventors: Toshiyuki Akiike, Matthias Patz, Masayuki Takahashi, Kohei Goto, Michinori Nishikawa, Takashi Okada, Kinji Yamada
  • Patent number: 6399702
    Abstract: An aqueous composition that includes (A) a butadiene polymer latex that is prepared by an emulsion polymerization in the presence of a styrene sulfonate stabilizer and (B) a phenolic resin. A preferred aqueous butadiene polymer latex is one that is prepared by emulsion polymerization of at least 60 weight percent dichlorobutadiene monomer (based on the amount of total monomers used to form the butadiene polymer), in the presence of a styrene sulfonate stabilizer.
    Type: Grant
    Filed: January 22, 1999
    Date of Patent: June 4, 2002
    Assignee: Lord Corporation
    Inventors: Helmut W. Kucera, Thomas Rizzo
  • Patent number: 6391992
    Abstract: Oligomers of vinyl esters, preferably of vinyl acetate, are provided in which the molecules contain a single terminal sulfonate group, thereby making these products useful as surface-active agents. These oligomers can be converted by hydrolysis to sulfonate-terminated vinyl alcohol oligomer which is also a surface-active agent. The number average molecular weight of the vinyl ester oligomer is not over 17,000 and not over 7,500 for the vinyl alcohol oligomer. These products are made by polymerizing the vinyl ester in the presence of a bisulfite chain transfer agent in water, preferably with a cosolvent such as methanol. The vinyl ester is delay fed to the polymerization, molecular weight is controlled with the bisulfite, and the system is maintained in a virtual single phase with any organic phase present swollen with water or water and cosolvent.
    Type: Grant
    Filed: September 18, 1998
    Date of Patent: May 21, 2002
    Assignee: Celanese International Corporation
    Inventors: Robert Krantz Pinschmidt, Jr., Khalil Yacoub
  • Patent number: 6335391
    Abstract: A latex adhesive for rubber/metal adhesion, which contains a copolymer consisting of, based on the weight of the copolymer, (A) 90.0 to 97.0% by weight of 2,3-dichloro-1,3-butadiene units, (B) 1.5 to 5.0% by weight of 1,2-dichloro-1,3-butadiene units, and (C) 1.5 to 5.0% by weight of 1,3-dichloro-1,3-butadiene units. The latex adhesive is prepared by polymerizing a monomer mixture consisting of the stated amounts of the monomers (A), (B) and (C) in the presence of a free-radical initiator, preferably a redox catalyst system, by an emulsion polymerization procedure. The latex adhesive has good mechanical stability and exhibits enhanced adhesion for rubber/metal adhesion.
    Type: Grant
    Filed: March 9, 2000
    Date of Patent: January 1, 2002
    Assignee: Tosoh Corporation
    Inventors: Seiji Matsumoto, Tsuneo Hironaka, Shinji Ozoe, Tamotsu Sato