Preparing A Polymer From Carbohydrate And Ethylenic Reactant Patents (Class 522/89)
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Patent number: 12064910Abstract: The invention relates to a system (10) for improved introduction of a separating device (40) into a flattened film tube (2) of a blown film line (1), with a cutting device (20) for severing only a first tube side (2.1) of the film tube (2), in particular the film tube (2) which has not yet been flattened. Furthermore, the invention relates to a blown film line (1), as well as a method (100) for producing and providing at least two film webs (6).Type: GrantFiled: March 27, 2020Date of Patent: August 20, 2024Assignee: Windmöller & Hölscher KGInventors: Tim Oberdalhoff, Thomas Sehlleier, Sebastian Martinek, Tim Kirchhoff
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Patent number: 11591500Abstract: A polymerizable adhesive composition containing an olefinically functionalized carbohydrate, a polymerizable liquid monomer, and optionally at least one polymerization initiator or initiator system is described. The adhesive composition is particularly well suited for adhering plastic components as well as is preferably provided with sufficiently long processing time for adhering artificial teeth on denture bases. The viscosity of the adhesive composition may be adjusted to the respected processing conditions.Type: GrantFiled: July 18, 2018Date of Patent: February 28, 2023Assignee: KULZER GmbHInventors: Klaus Ruppert, Yanyan Habeck
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Patent number: 11566085Abstract: The present invention relates to a process for the preparation of pharmaceutical, injectable or ophthalmic grade hyaluronic acid, or a salt thereof, for use in the dermocosmetic or pharmaceutical field or in medical devices, which comprises dissolution of hyaluronic acid or a salt thereof in organic solvent, a heat cycle, and recovery of the product by precipitation and successive washes in organic solvents.Type: GrantFiled: October 19, 2020Date of Patent: January 31, 2023Assignee: BMG PHARMA S.P.A.Inventors: Luca Stucchi, Fabrizio Picotti, Alessandra Sechi, Rita Gianni
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Patent number: 11365275Abstract: The present invention provides a contact lens composition that is polymerizable in a mold and that can easily be peeled from a mold, a cured material of the contact lens composition, a contact lens in which the cured material of the contact lens composition is disposed in at least a center part thereof, and a method for manufacturing the contact lens. This contact lens composition contains (a) a polymerizable crosslinking agent having a multi-ring alicyclic hydrocarbon structure and (b) silicone having a radical polymerizable group.Type: GrantFiled: May 10, 2018Date of Patent: June 21, 2022Assignee: TORAY INDUSTRIES, INC.Inventors: Hirokazu Iimori, Masataka Nakamura
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Patent number: 10796821Abstract: A method for manufacturing a high conductive Al alloy wire without conducting an annealing process includes: providing an Al alloy rod comprising 0.01 parts by weight to 0.08 parts by weight of Fe, Fe:Si=2 to 3:1 of Si and the balance Al and inevitable impurities, based on 100 parts by weight of an entire A1350 alloy; conform-extruding the Al alloy rod by passing through a dies of a conform extruder having a polygonal shaped structure to form a polygonal shaped Al alloy wire; cooling the extruded Al alloy wire to room temperature; and winding the cooled Al alloy wire using a winder.Type: GrantFiled: June 3, 2019Date of Patent: October 6, 2020Inventor: Mi-Song Ku
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Patent number: 10337150Abstract: Grafted, crosslinked cellulosic materials used in absorbent articles, the grafted crosslinked cellulosic materials including cellulose fibers and polymer chains composed of at least one monoethylenically unsaturated acid group-containing monomer (such as acrylic acid) grafted thereto, in which one or more of the cellulose fibers and the polymer chains are crosslinked (such as by intra-fiber chain-to-chain crosslinks). Some of such materials are characterized by a wet bulk of about 10.0-17.0 cm3/g, an IPRP value of about 1000 to 7700 cm2/MPa·sec, and/or a MAP of about 7.0 to 38 cm H2O. Methods for producing such materials may include grafting polymer chains from a cellulosic substrate, followed by treating the grafted material with a crosslinking agent adapted to effect crosslinking of one or more of the cellulosic substrate or the polymer chains.Type: GrantFiled: July 24, 2015Date of Patent: July 2, 2019Assignee: The Procter & Gamble CompanyInventors: Karen Brogan, Charles E. Miller, Angel Stoyanov, Torsten Lindner, Maike Siemons
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Patent number: 10323337Abstract: A polyester-based fiber for artificial hair includes a polyester-based resin composition, wherein the polyester-based resin composition includes: 100 parts by weight of a polyester resin; 5 to 40 parts by weight of a brominated epoxy-based flame retardant; 0.05 to 3 parts by weight of a polyester resin molecular weight modifier; and 0.2 to 3 parts by weight of a phosphite-based compound, and wherein the polyester resin is one or more selected from the group consisting of polyalkylene terephthalate and a copolymerized polyester including polyalkylene terephthalate. A method for producing the polyester-based fiber for artificial hair includes melt kneading the polyester resin composition and melt spinning the polyester resin composition after the melt kneading into yarns. A hair ornament product includes the polyester-based fiber.Type: GrantFiled: October 10, 2017Date of Patent: June 18, 2019Assignee: KANEKA CORPORATIONInventor: Takanori Hatano
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Patent number: 10005854Abstract: Compositions are provided herein comprising a base polymer having engrafted with a secondary polymeric matrix having hydrophilic and lubricious copolymer brushes. Each copolymer brush further comprises functional groups immobilized along the surface of the brush in a plurality of layers, the functional groups conferring hydrophilic and lubricious properties to the base polymer. These polymer compositions are useful for e.g., fabricating devices for delivery of intraocular lenses (IOLs) as well as improving the hydrophilic properties of contact lenses.Type: GrantFiled: September 30, 2011Date of Patent: June 26, 2018Assignee: AST PRODUCTS, INC.Inventor: William Lee
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Patent number: 9997649Abstract: An electrode composition, an electrode, and a solar cell, the composition including a conductive powder; glass frit; an organic binder; and a solvent, wherein the organic binder is a compound that includes a moiety represented by Chemical Formula 1:Type: GrantFiled: February 22, 2016Date of Patent: June 12, 2018Assignee: SAMSUNG SDI CO., LTD.Inventors: Sung-Il Moon, Seung-Chul Lyu, Hyung-Seok Park, Young-Sil Lee
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Patent number: 9539763Abstract: The present invention pertains to a process for producing three-dimensional, self-supporting and/or substrate-supported formed pieces or structures on surfaces by means of site-selective solidification of a liquid to pasty, organic or organically modified material within a bath consisting of this material by means of two- or multiphoton polymerization, whereby the material has at least one compound that has both an organic radical polymerizable via two-photon or multiphoton polymerization and a biocompatible, biodegradable or bioresorbable group, and/or wherein the bath material additionally contains groups or radicals, which are available for an inorganic crosslinking or which are already inorganically crosslinked, providing that both an organic radical polymerizable via two-photon or multiphoton polymerization and a biocompatible, biodegradable or bioresorbable group must be contained in the material.Type: GrantFiled: February 8, 2011Date of Patent: January 10, 2017Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.Inventors: Ruth Houbertz-Krauss, Matthias Beyer, Joern Probst, Thomas Stichel
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Patent number: 9078433Abstract: The present invention relates to compositions for the control of pests, in particular insecticidal suspension concentrates and spray solutions made from them, to processes for their preparation, and to the use of such formulations for the sustained control of animal pests (arthropods) on a variety of surfaces. The present invention furthermore relates to the use of certain polymer dispersions in pesticides, in particular to their use for extending the long-term activity of these compositions when they are applied to surfaces. The present invention furthermore relates to the use of the compositions according to the invention for controlling parasites, in particular ectoparasites, in animals.Type: GrantFiled: July 11, 2014Date of Patent: July 14, 2015Assignee: BAYER CROPSCIENCE AGInventors: Johan Kijlstra, Frank Rosenfeldt, Guenther Nentwig, Volker Gutsmann, Rainer Sonneck, Douglas Ross
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Patent number: 9012415Abstract: This invention refers to photo-crosslinked hydrogel materials based in gellan gum suitable for tissue engineering and regenerative medicine applications or as drug delivery systems. Formulations of gellan gum with different degrees of acylation serve as precursor material for insertion of a polymerizable moiety. The materials are capable of free radical polymerization with a photo-initiator at mild temperatures and exposure to ultraviolet light, enabling control of reticulation and withstanding the encapsulation of human and animal cells and/or drugs, and any combination thereof. The physicochemical and biological properties can be adjusted by combining different formulations of gellan gum and reaction conditions.Type: GrantFiled: March 26, 2011Date of Patent: April 21, 2015Assignee: Stemmatters, Biotecnologia e Medicina Regenerativa S.A.Inventors: Joana Catarina Da Silva Correia, Joaquim Miguel Antunes De Oliveira, João Manuel Teixeira De Oliveira, Rui Pedro Amandi Romero De Sousa, Rui Luis Gonçalves Dos Reis
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Publication number: 20140242024Abstract: The present disclosure relates to a hydrogel composition and methods of using the same. The hydrogel composition may include precursors that react with each other upon contact as well as precursors that react upon contact with an initiator. In embodiments, the resulting hydrogels may have varying levels of crosslinking with both denser and less dense regions.Type: ApplicationFiled: May 8, 2014Publication date: August 28, 2014Applicant: Covidien LPInventors: Steven Bennett, Nathaniel Mast, Kevin Lavigne, Walter Skalla, Timothy Sargeant, Joshua Stopek
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Publication number: 20140186312Abstract: The present inventions in various aspects provide elastic biodegradable polymers. In various embodiments, the polymers are formed by the reaction of a multifunctional alcohol or ether and a difunctional or higher order acid to form a pre-polymer, which is cross-linked to form the elastic biodegradable polymer. In preferred embodiments, the cross-linking is performed by functionalization of one or more OR groups on the pre-polymer backbone with vinyl, followed by photopolymerization to form the elastic biodegradable polymer composition or material. Preferably, acrylate is used to add one or more vinyls to the backbone of the pre-polymer to form an acrylated pre-polymer. In various embodiments, acrylated pre-polymers are co-polymerized with one or more acrylated co-polymers.Type: ApplicationFiled: February 17, 2014Publication date: July 3, 2014Applicant: Massachusetts Institute of TechnologyInventors: Christopher J. Bettinger, Joost P. Bruggeman, Lino da Silva Ferreira, Jeffrey M. Karp, Robert S. Langer, Christiaan Nijst, Andreas Zumbuehl, Jason Burdick, Sonia J. Kim
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Patent number: 8685368Abstract: A new class of non-viral transduction vectors that can be used for both in vivo and in vitro applications, including, a gene transfer vector that has comparable efficiency to a viral vector without the potential for a life-threatening immune response is provided. Complexes including a cellular delivery molecule or agent that can facilitate the translocation of the complex or portion thereof into cells is also provided. The cellular delivery molecules may include one or more polymers, e.g., polyamides, dendritic macromolecules and carbohydrate-containing degradable polyesters.Type: GrantFiled: July 3, 2012Date of Patent: April 1, 2014Inventor: Theresa M. Reineke
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Patent number: 8609081Abstract: The present invention relates to novel compositions of therapeutic cyclodextrin containing polymeric compounds designed as a carrier for small molecule therapeutics delivery and pharmaceutical compositions thereof. These cyclodextrin-containing polymers improve drug stability and solubility, and reduce toxicity of the small molecule therapeutic when used in vivo. Furthermore, by selecting from a variety of linker groups and targeting ligands the polymers present methods for controlled delivery of the therapeutic agents. The invention also relates to methods of treating subjects with the therapeutic compositions described herein. The invention further relates to methods for conducting pharmaceutical business comprising manufacturing, licensing, or distributing kits containing or relating to the polymeric compounds described herein.Type: GrantFiled: January 11, 2013Date of Patent: December 17, 2013Assignee: Cerulean Pharma Inc.Inventors: Jianjun Cheng, Mark E. Davis, Kay T. Khin
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Patent number: 8603454Abstract: The present invention relates to novel compositions of therapeutic cyclodextrin containing polymeric compounds designed as a carrier for small molecule therapeutics delivery and pharmaceutical compositions thereof. These cyclodextrin-containing polymers improve drug stability and solubility, and reduce toxicity of the small molecule therapeutic when used in vivo. Furthermore, by selecting from a variety of linker groups and targeting ligands the polymers present methods for controlled delivery of the therapeutic agents. The invention also relates to methods of treating subjects with the therapeutic compositions described herein. The invention further relates to methods for conducting pharmaceutical business comprising manufacturing, licensing, or distributing kits containing or relating to the polymeric compounds described herein.Type: GrantFiled: February 15, 2013Date of Patent: December 10, 2013Assignee: Cerulean Pharma Inc.Inventors: Jianjun Cheng, Mark E. Davis, Kay T. Khin
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Patent number: 8580242Abstract: The present invention relates to novel compositions of therapeutic cyclodextrin containing polymeric compounds designed as a carrier for small molecule therapeutics delivery and pharmaceutical compositions thereof. These cyclodextrin-containing polymers improve drug stability and solubility, and reduce toxicity of the small molecule therapeutic when used in vivo. Furthermore, by selecting from a variety of linker groups and targeting ligands the polymers present methods for controlled delivery of the therapeutic agents. The invention also relates to methods of treating subjects with the therapeutic compositions described herein. The invention further relates to methods for conducting pharmaceutical business comprising manufacturing, licensing, or distributing kits containing or relating to the polymeric compounds described herein.Type: GrantFiled: January 11, 2013Date of Patent: November 12, 2013Assignee: Cerulean Pharma Inc.Inventors: Jianjun Cheng, Mark E. Davis, Kat T. Khin
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Patent number: 8580243Abstract: The present invention relates to novel compositions of therapeutic cyclodextrin containing polymeric compounds designed as a carrier for small molecule therapeutics delivery and pharmaceutical compositions thereof. These cyclodextrin-containing polymers improve drug stability and solubility, and reduce toxicity of the small molecule therapeutic when used in vivo. Furthermore, by selecting from a variety of linker groups and targeting ligands the polymers present methods for controlled delivery of the therapeutic agents. The invention also relates to methods of treating subjects with the therapeutic compositions described herein. The invention further relates to methods for conducting pharmaceutical business comprising manufacturing, licensing, or distributing kits containing or relating to the polymeric compounds described herein.Type: GrantFiled: February 15, 2013Date of Patent: November 12, 2013Assignee: Cerulean Pharma Inc.Inventors: Jianjun Cheng, Mark E. Davis, Kay T. Khin
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Patent number: 8580244Abstract: The present invention relates to novel compositions of therapeutic cyclodextrin containing polymeric compounds designed as a carrier for small molecule therapeutics delivery and pharmaceutical compositions thereof. These cyclodextrin-containing polymers improve drug stability and solubility, and reduce toxicity of the small molecule therapeutic when used in vivo. Furthermore, by selecting from a variety of linker groups and targeting ligands the polymers present methods for controlled delivery of the therapeutic agents. The invention also relates to methods of treating subjects with the therapeutic compositions described herein. The invention further relates to methods for conducting pharmaceutical business comprising manufacturing, licensing, or distributing kits containing or relating to the polymeric compounds described herein.Type: GrantFiled: February 15, 2013Date of Patent: November 12, 2013Assignee: Cerulean Pharma Inc.Inventors: Jianjun Cheng, Mark E. Davis, Kay T. Khin
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Patent number: 8519018Abstract: A resin includes: an acrylate; and a curing agent to cure the acrylate. The resin is adapted to adhere to a degradable material selected from the group consisting of polylactic polymer (PLA), polyhydroxyalkonate (PHA), poly 3 hydroxybutrate co 3 hydroxyhexanote (PHBH), and paper. The curing agent includes a photoinitiator or a sensitizer that, when cured, form a hard coat when the resin is exposed to ultraviolet radiation or an electron beam.Type: GrantFiled: February 21, 2010Date of Patent: August 27, 2013Assignee: Innovative Bottles, LLCInventor: Shantu Patel
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Publication number: 20130112623Abstract: The invention describes a composite microfiber, which is comprising a polysaccharide polymer selected from the group consisting of cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, methyl cellulose, ethyl cellulose, n-propyl cellulose, isopropyl cellulose, cellulose acetate and combinations of two or more of these substances, and combinations of two or more of these substances, thereby the polysaccharide polymer further comprising substituents comprising a given formula, wherein k is 1 or greater, and wherein each moiety R1 is independently selected from H and methyl, and wherein each moiety R2 is independently selected from —H, —OH, —NH2, —SH, —OR3, —NHR3 and —NR3R4, —SR3, and wherein each moiety R3 and R4 are chemical groups independently selected from C1-C4 alkyl, C1-C4 alkoxy, C1-C4 alkoxy halide and C1-C4 heteroalkyl substituents, and is preferably selected from —CH3, —CH2—CH3, —CH2—OH, —CH2—CH2—OH, —CH2—CH2—NH2, —CH—CH(OH)—CH2—OH, —CH—CH(OH)—CH3, glycidyl, anhydride, sulfonic acid and hydroxysType: ApplicationFiled: November 20, 2012Publication date: May 9, 2013Applicant: JACOBS UNIVERSITY BREMEN GGMBHInventors: MARCELLO FERNANDEZ-LAHORE, MARIANO GRASSELLI
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Patent number: 8378003Abstract: Provided are substantially flat membranes that include a block or graft co-polymer and a water transport protein, such as Aquaporin-Z, or a synthetic mimic of such proteins. Also provided are methods of removing contaminants from a liquid, by contacting the liquid with a substantially flat membrane that includes a block or graft co-polymer and a water transport protein or synthetic mimic thereof. Also provided are methods of making such membranes. Further provided are compositions that include at least one active ingredient and vesicles surrounding the active ingredient, where the vesicles include a block or graft copolymer and a water transport protein or synthetic mimic surrounding the active ingredient. Also provided are methods that include administering such compositions to patients.Type: GrantFiled: December 4, 2008Date of Patent: February 19, 2013Assignee: The Board of Trustees of the University of IllinoisInventors: Kumar Manish, Clark Mark, Zilles L. Julie, Mariusz Grzelakowski, Rainer Nehring, WolfGang Meier
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Patent number: 8367045Abstract: A method of preparing colored UV-curable artificial nail gel compositions comprising dispersing a pigment in an organic liquid to form a pigment concentrate and mixing the pigment concentrate with a polyfunctional acrylic monomer and/or a polyfunctional acrylic oligomer, and the resultant highly colored artificial nail gel are disclosed.Type: GrantFiled: September 14, 2011Date of Patent: February 5, 2013Assignee: Mycone Dental Supply Co., Inc.Inventors: Robert R. Raney, Kevin M. Sheran, Larry W. Steffier, Gary Iannece
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Publication number: 20130017177Abstract: This invention refers to photo-crosslinked hydrogel materials based in gellan gum suitable for tissue engineering and regenerative medicine applications or as drug delivery systems. Formulations of gellan gum with different degrees of acylation serve as precursor material for insertion of a polymerizable moiety. The materials are capable of free radical polymerization with a photo-initiator at mild temperatures and exposure to ultraviolet light, enabling control of reticulation and withstanding the encapsulation of human and animal cells and/or drugs, and any combination thereof. The physicochemical and biological properties can be adjusted by combining different formulations of gellan gum and reaction conditions.Type: ApplicationFiled: March 26, 2011Publication date: January 17, 2013Inventors: Joana Catarina Da Silva Correia, Joaquin Miguel Antunes De Oliveira, Joâo Manuel Teixeira De Oliveira, Rui Pedro Amandi Romero De Sousa, Ruiç Luis Gonçalves Dos Reis
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Publication number: 20130012612Abstract: The present invention pertains to a process for producing three-dimensional, self-supporting and/or substrate-supported formed pieces or structures on surfaces by means of site-selective solidification of a liquid to pasty, organic or organically modified material within a bath consisting of this material by means of two- or multiphoton polymerization, whereby the material has at least one compound that has both an organic radical polymerizable via two-photon or multiphoton polymerization and a biocompatible, biodegradable or bioresorbable group, and/or wherein the bath material additionally contains groups or radicals, which are available for an inorganic crosslinking or which are already inorganically crosslinked, providing that both an organic radical polymerizable via two-photon or multiphoton polymerization and a biocompatible, biodegradable or bioresorbable group must be contained in the material.Type: ApplicationFiled: February 8, 2011Publication date: January 10, 2013Inventors: Ruth Houbertz-Krauss, Matthias Beyer, Joern Probst, Thomas Stichel
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Patent number: 8338502Abstract: To provide a polymerizable fluorine-containing compound useful for producing a treated substrate having a hydrophilic region and a water repellent region, of which the contrast is high on its surface, without requiring a special apparatus, high energy light, or irradiation with light for a long time. A polymerizable fluorine-containing compound, which is a derivative of a polyhydric alcohol and comprises at least one following structure (A) and at least one following structure (B) in its molecule: structure (A): a structure wherein a compound having a fluoroalkyl group and a carboxyl group is bonded to one hydroxyl group of a polyhydric alcohol by an ester linkage, structure (B): a structure wherein a compound having an ethylenic double bond and a carboxyl group is bonded to one hydroxyl group of a polyhydric alcohol by an ester linkage or a structure wherein a compound having an ethylenic double bond and an isocyanate group is bonded to one hydroxyl group of a polyhydric alcohol by a urethane bond.Type: GrantFiled: February 5, 2009Date of Patent: December 25, 2012Assignee: Asahi Glass Company, LimitedInventors: Taiki Hoshino, Yutaka Furukawa
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Patent number: 8236280Abstract: A new class of non-viral transduction vectors that can be used for both in vivo and in vitro applications, including a gene transfer vector that has comparable efficiency to a viral vector without the potential for a life-threatening immune response is provided. Complexes including a cellular delivery molecule or agent that can facilitate the translocation of the complex or portion thereof into cells are also provided. The cellular delivery molecules may include one or more polymers, e.g., polyamides, dendritic macromolecules and carbohydrate-containing degradable polyesters.Type: GrantFiled: March 10, 2011Date of Patent: August 7, 2012Assignee: University of CincinnatiInventor: Theresa M. Reineke
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Patent number: 8197058Abstract: A method for inkjet printing includes, in order, the steps of a) providing an ink-receiver having an image thereon; b) forming on the ink-receiver a layer of a first curable liquid and curing the layer; and c) forming an outermost layer of a second curable liquid only on the cured first curable liquid and at least partially covering the image; wherein the second curable liquid contains an abherent agent which is absent in the first curable liquid and wherein at least one of the first and second curable liquids is inkjet printed. Also, a polymerizable abherent agent may be used in a curable liquid to prevent falsification of an ID document. Also, a set of curable liquids for inkjet printing includes a first curable liquid and a second curable liquid wherein the second curable liquid contains an abherent agent which is absent in the first curable liquid.Type: GrantFiled: October 11, 2006Date of Patent: June 12, 2012Assignee: Agfa Graphics NVInventors: Luc Leenders, Eddie Daems
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Patent number: 7935738Abstract: A transparent flexible film is provided, formed by curing a composition, comprising: about 40-75 parts by weight of a clay; about 15-45 parts by weight of a water-soluble polymer; about 1-10 parts by weight of a mono-functional acrylic oligomer of formula (I), wherein n1 is an integer 2-25, R1 is C1-10 alkyl or H, and R2 is H or CH3; and about 10-45 parts by weight of a bi-functional acrylic oligomer of formula (II), wherein n2 is an integer 3-50, R3 and R4 are H or CH3.Type: GrantFiled: May 22, 2008Date of Patent: May 3, 2011Assignee: Industrial Technology Research InstituteInventors: Chih-Kuang Chen, Shih-Ming Chen, Jia-Chi Huang, Young-Jen Lee, Li-Ching Wang
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Patent number: 7927711Abstract: This invention relates to a durable layer for in-mold decoration. The durable layer is formed from a composition comprising (i) a thermally crosslinkable and photochemically or radically graftable polymer, (ii) a non-ethylenical thermal crosslinker, and (iii) a radiation curable multifunctional monomer or oligomer. The durable layer of the present invention has excellent surface quality with a wider geometric tolerance and can be formed at low cost.Type: GrantFiled: May 1, 2007Date of Patent: April 19, 2011Assignee: SiPix Chemical Inc.Inventors: Xiaojia Wang, Haiyan Gu, Fei Wang, HongMei Zang, Tina Wu, Xin Huo, Rong-Chang Liang
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Patent number: 7875659Abstract: This invention provides a water-soluble macromonomer having terminal unsaturation obtained by polymerization of monomers in the presence of inclusion complex of chain transfer agent in aqueous system. Hydrophobic chain transfer agent AMSD forms an inclusion complex with methylated cyclodextrin. The complexation enhances its solubility in water and enables the polymerization of water-soluble monomers in aqueous medium. After polymerization cyclodextrin is removed and the macromer with terminal unsaturation obtained can be used further for copolymerization with any vinyl monomer.Type: GrantFiled: March 28, 2007Date of Patent: January 25, 2011Assignee: Council of Scientific and Industrial ResearchInventors: Mohan Gopalkrishna Kulkarni, Prerana Maruti Patil
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Publication number: 20100065499Abstract: The invention describes a composite microfibre, which is comprising a polysaccharide polymer selected from the group consisting of cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, methyl cellulose, ethyl cellulose, n-propyl cellulose, isopropyl cellulose, cellulose acetate and combinations of two or more of these substances, and combinations of two or more of these substances, thereby the polysaccharide polymer further comprising substituents comprising a given formula, wherein k is 1 or greater, and wherein each moiety R1 is independently selected from H and methyl, and wherein each moiety R2 is independently selected from —H, —OH, —NH2, —SH, —OR3, —NHR3 and —NR3R4, —SR3, and wherein each moiety R3 and R4 are chemical groups independently selected from C1-C4 alkyl, C1-C4 alkoxy, C1-C4 alkoxy halide and C1-C4 heteroalkyl substituents, and is preferably selected from —CH3, —CH2—CH3, —CH2—OH, —CH2—CH2—OH, —CH2—CH2—NH2, —CH—CH(OH)—CH2—OH, —CH—CH(OH)—CH3, glycidyl, anhydride, sulfonic acid and hydroxysType: ApplicationFiled: March 7, 2008Publication date: March 18, 2010Inventors: Marcello Fernandez-Lahore, Mariano Grasselli
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Patent number: 7642298Abstract: A polymeric surfactant formed by the reaction of an oligomeric or polymeric substrate with at least one ethylenically unsaturated monomer, wherein the reaction is conducted in the presence of a type II photo initiator and by the action of actinic radiation. The polymeric surfactant is useful for stabilising the interface in emulsions or dispersions.Type: GrantFiled: May 26, 2004Date of Patent: January 5, 2010Assignee: Ciba Specialty Chemicals Water Treatments Ltd.Inventor: Michael Singh
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Patent number: 7576138Abstract: A method of surface cross-linking superabsorbent polymer particles using UV irradiation is provided. The method is carried out in a so-called drum reactor, which comprises a hollow drum and an irradiation source. The drum has a longitudinal axis and a cross-section. Superabsorbent polymer particles are fed into the drum and are irradiated while they move within the drum, which is rotated around its longitudinal axis. The irradiation source is provided such that the radiation emitted by the irradiation source is able to reach superabsorbent polymer particles within said drum. The irradiation source for use in the method is able to emit UV radiation of a wavelength between about 100 nm and about 200 nm.Type: GrantFiled: August 23, 2006Date of Patent: August 18, 2009Assignee: The Procter & Gamble CompanyInventors: Andreas Flohr, Torsten Lindner, Esther Oliveros, Yoshiro Mitsukami
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Patent number: 7569618Abstract: A method of surface cross-linking superabsorbent polymer particles using UV irradiation is provided. The method is carried out in a so-called drum reactor, which comprises a hollow drum and an irradiation source. The drum has a longitudinal axis and a cross-section. Radical former molecules are applied on the surface of superabsorbent polymer particles. These superabsorbent polymer particles are fed into the drum and are irradiated while they move within the drum, which is rotated around its longitudinal axis. The irradiation source is provided such that the radiation emitted by the irradiation source is able to reach superabsorbent polymer particles within said drum. The irradiation source for use in the method is able to emit UV radiation of a wavelength between about 201 nm and about 400 nm.Type: GrantFiled: August 23, 2006Date of Patent: August 4, 2009Assignee: The Procter & Gamble CompanyInventors: Andreas Flohr, Torsten Lindner, Esther Oliveros, Yoshiro Mitsukami
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Patent number: 7452922Abstract: Polymer particles are irradiated with radiation from a high energy source to increase the water or other fluid absorbency of the particles. Products manufactured using the activated particles include protective undergarments, bandages, kitty litter, and spill clean up materials.Type: GrantFiled: February 8, 2007Date of Patent: November 18, 2008Assignee: Super Absorbent CompanyInventors: Phillip Berlin, Mark Sinkinson
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Publication number: 20080026155Abstract: A photo- or electron beam curable composition comprising a polymer or copolymer and a (meth)acrylate type monomer having at least three (meth)acrylate group per monomer molecule and at least one ethyleneoxy group per (meth)acrylate group in said monomer is suitable for use in the top-coat layer of a photostimulable phosphor screen comprising a support, a storage phosphor layer and an outermost top-coat, more particularly when said top-coat comprises a cellulose ester polymer.Type: ApplicationFiled: June 13, 2007Publication date: January 31, 2008Inventors: Alexander Williamson, Paul Leblans
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Patent number: 7288319Abstract: Chemically cross-linked polymeric particles are formed using mechanical rather than chemical processes, facilitating production of small-diameter particles in a manner largely independent of the viscosity or density of the polymer. For example, an uncross-linked resin may be provided in particulate form, agglomerated, and compressed into a mass of a desired shape with a desired diameter, and subsequently cross-linked.Type: GrantFiled: March 31, 2006Date of Patent: October 30, 2007Assignee: Boston Scientific SciMed Inc.Inventors: Samuel P. Baldwin, Robert P. Skribiski
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Patent number: 7259192Abstract: A method of depolymerizing galactomannan-type polysaccharide polymers and xanthan, preferably galactomannans, to a pre-selected lower molecular weight by irradiation with high energy electron beams. The preferred galactomannans for treatment according to this method are guar gum, guar splits and hydroxypropyl guar. In a preferred embodiment the guar gum is depolymerized preferably to a molecular weight of about 150,000 Daltons to about 200,000 Daltons. The depolymerized guar has a polydispersity of less than about 3.0 and is useful in oil well fracturing to enhance oil production.Type: GrantFiled: June 24, 2003Date of Patent: August 21, 2007Assignee: Rhodia, Inc.Inventors: Leo Zhaoqing Liu, Christian Priou
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Patent number: 7208532Abstract: A method for the production of a cross-linked support matrix that in form of a bed will permit liquid flow velocities above 5 cm/h, preferably above 50 cm/h, to pass through the bed. The method is characterized in that it comprises the steps: (a) providing a starting support matrix that has pendent unsaturated groups, and (b) subjecting said starting support matrix to electron beam or gamma-ray irradiation. The use of a cross-linked support matrix produced by a method comprising the steps of: (a) providing a starting support matrix that has pendent unsaturated groups, and (b) subjecting said starting support matrix to electron beam or gamma-ray irradiation as a support matrix in liquid chromatography, cell culturing, step-wise solid phase synthesis of organic compounds, running catalytic reactions by the use of a solid phase bound catalyst.Type: GrantFiled: December 11, 2000Date of Patent: April 24, 2007Assignee: GE Healthcare Bio-Sciences ABInventors: Eva Berggren, Dag Lindstrom
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Patent number: 7183336Abstract: Polymer particles are irradiated with radiation from a high energy source to increase the water or other fluid absorbency of the particles. Products manufactured using the activated particles include protective undergarments, bandages, kitty litter, and spill clean up materials.Type: GrantFiled: July 30, 2003Date of Patent: February 27, 2007Assignee: Super Absorbent CompanyInventors: Phillip Berlin, Mark Sinkinson
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Patent number: 6911227Abstract: This invention provides novel methods for the formation of biocompatible membranes around biological materials using photopolymerization of water soluble molecules. The membranes can be used as a covering to encapsulate biological materials or biomedical devices, as a “glue” to cause more than one biological substance to adhere together, or as carriers for biologically active species. Several methods for forming these membranes are provided. Each of these methods utilizes a polymerization system containing water-soluble macromers, species, which are at once polymers and macromolecules capable of further polymerization. The macromers are polymerized using a photoinitiator (such as a dye), optionally a cocatalyst, optionally an accelerator, and radiation in the form of visible or long wavelength UV light. The reaction occurs either by suspension polymerization or by interfacial polymerization.Type: GrantFiled: March 19, 2001Date of Patent: June 28, 2005Assignee: Novocell, Inc.Inventors: Jeffrey A. Hubbell, Chandrashekhar P. Pathak, Amarpreet S. Sawhney, Neil P. Desai, Syed F. A. Hossainy
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Patent number: 6855746Abstract: This invention provides a process for the production of molded particles for enzyme- or microbial cell-immobilization which is characterized in that: an aqueous liquid composition which comprises: (A) an unsaturated group-containing urethane resin which is obtained by making a compound (a) having one hydroxyl group and one epoxy group in a molecule react with a compound (b) having one carboxyl group and one ethylenically unsaturated group in a molecule, and further making thus obtained unsaturated group-containing diol (c) react with polyisocyanate compound (d); (B) a polymerization initiator; and (C) water-soluble macromolecular polysaccharides which are capable of gelation by contact with metal ion; is gelatinized, in an aqueous medium which contains metal ion, to be particulate gel, which is then subjected to photopolymerization and/or thermopolymerization by which to cause the crosslinking reaction of ethylenically unsaturated group in said particulate gel.Type: GrantFiled: November 14, 2002Date of Patent: February 15, 2005Assignee: Kansai Paint Co., Ltd.Inventors: Junya Yoshitake, Kenji Miyagawa, Kenji Seko
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Patent number: 6841644Abstract: Disclosed are modified naturally occurring biocompatible biopolymers of plant and animal origin made by subjecting same to ionizing radiation in the presence of a mediating gas, typically acetylene to enable one to selectively enhance and modify one or more of the physiochemical properties of the starting materials which have a wide range of uses in medicine, food technology and other industrial applications. Notwithstanding the modifications, the biocompatibility of the biopolymer remains unchanged and no new or additional functional groups are introduced into the starting biopolymer.Type: GrantFiled: March 28, 2003Date of Patent: January 11, 2005Assignee: Phillips Hydrocolloids Research LimitedInventors: Glyn Owen Phillips, Tjaart Andries Du Plessis, Saphwan Al-Assaf, Peter Anthony Williams
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Patent number: 6835758Abstract: A method for curing an active single phase water compatible actinic radiation curable composition, comprising: irradiating a water compatible non emulsion, non dispersing compound, water, and a maleimide derivative.Type: GrantFiled: August 27, 2003Date of Patent: December 28, 2004Assignee: Sun Chemical CorporationInventors: David Anthony Biro, Mikhail Laksin, Yoshinobu Sakurai, Hisatomo Yonehara, Katsuji Takahashi
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Patent number: 6706778Abstract: This invention provides a process for the production of molded particles for microbial cell-immobilization which is characterized in that: an aqueous liquid composition which comprises: (a) an ethylenically unsaturated group-containing urethane resin which is obtained by making a tertiary amino group-containing diol react with a polyisocyanate compound, and by further introducing an ethylenically unsaturated group; (b) a polymerization initiator; and (c) water-soluble macromolecular polysaccharides; is gelatinized, in an aqueous medium which contains metal ion, to be particulate gel which is then subjected to photopolymerization and/or thermopolymerization by which to cause the crosslinking reaction of ethylenically unsaturated group in said particulate gel.Type: GrantFiled: January 31, 2002Date of Patent: March 16, 2004Assignee: Kansai Paint Co., Ltd.Inventors: Junya Yoshitake, Kenji Miyagawa, Kenji Seko
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Patent number: 6610810Abstract: Disclosed is a method for modifying naturally occuring biocompatible biopolymers of plant and animal origin by subjecting same to ionizing radiation in the presence of a mediating gas, typically acetylene to enable one to selectively enhance and modify one or more of the physiochemical propserties of the starting materials which have a wide range of uses in medicine, food technology and other industrial applications. Notwithstanding the modifications, the biocompatibility of the biopolymer remains unchanged and no new or additional functional groups are introduced into the starting biopolymer.Type: GrantFiled: March 13, 2001Date of Patent: August 26, 2003Inventors: Glyn Owen Phillips, Tjaart Andries Du Plessis, Saphwan Al-Assaf, Peter Anthony Williams
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Patent number: 6586493Abstract: Disclosed are hyaluronate-containing hydrogels having angiogenic and vascularizing activity and pre-gel blends for preparing the hydrogels. The hydrogels contain a cross-linked matrix of a non-angiogenic hyaluronate and a derivatized polysaccharide material, in which cross-linking is effected by free-radical polymerization. Kits for preparing the hydrogels are also disclosed.Type: GrantFiled: March 7, 2001Date of Patent: July 1, 2003Assignee: Arizona Board of Regents Arizona State UniversityInventors: Stephen P. Massia, Julie Trudel
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Publication number: 20030105179Abstract: A free radical-curable epoxy composition comprises epoxy resin and a copolymerizable material including a monomer having amide, acrylamide, or hydroxyl functionality, and is advantageously devoid of any cationic catalyst ingredient.Type: ApplicationFiled: November 28, 2001Publication date: June 5, 2003Inventor: John R. Arnold