From Monomer Containing A Silicon Atom Patents (Class 526/279)
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Patent number: 8404791Abstract: A silicone rubber composition, which comprises 100 parts by weight of vinyl group-introduced methylphenylvinyl-based silicone rubber obtained by copolymerization of dimethylsiloxane copolymerization units as the main component with 3-30 mol. % of methylphenylsiloxane copolymerization units, and 0.2-8 parts by weight of an organic peroxide, where introduction of vinyl groups into the silicone rubber can be attained generally by copolymerization of 0.1-5 mol. % of methylvinylsiloxane. When silica is used as a filler, it is desirable to use a surfactant for silica, and water together. Owing to distinguished low-temperature characteristics and blister resistance, the present silicone rubber composition can be used a suitable seal material for a high-pressure hydrogen gas storage tank, for example, to storage under 70 MPa, and particularly as suitable vulcanization-molding materials for O rings, packings, gaskets, oil seals, valves, etc.Type: GrantFiled: June 15, 2007Date of Patent: March 26, 2013Assignee: NOK Kluber Co., Ltd.Inventors: Takeshi Sato, Masaya Otsuka, Masashi Kudo
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Patent number: 8404783Abstract: The invention relates to novel crosslinkable copolymers which are obtainable by (a) copolymerizing at least two different hydrophilic monomers selected from the group consisting of N,N-dimethyl acrylamide (DMA), 2-hydroxyethyl acrylate (HEA), glycidyl methacrylate (GMA), N-vinylpyrrolidone (NVP), acrylic acid (AA) and a C1-C4-alkoxy polyethylene glycol (meth)acrylate having a weight average molecular weight of from 200 to 1500, and at least one crosslinker comprising two or more ethylenically unsaturated double bonds in the presence of a chain transfer agent having a functional group; and (b) reacting one or more functional groups of the resulting copolymer with an organic compound having an ethylenically unsaturated group.Type: GrantFiled: July 10, 2007Date of Patent: March 26, 2013Assignee: Novartis AGInventors: Frank Chang, Norberto Arturo Medina
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Publication number: 20130059926Abstract: A method for producing polymerisable solution which comprises dissolving an ethylenically unsaturated zwitterionic monomer in a co-monomer system comprising a functionalised ethylenically unsaturated monomer in which the zwitterionic monomer is soluble, a siloxane group-containing monomer or macromer, and a crosslinking agent is disclosed. The polymerisable solution is biocompatible and can be used to produce polymers and articles such as contact lenses.Type: ApplicationFiled: August 31, 2012Publication date: March 7, 2013Inventors: Michael Driver, Qingpu Hou, Jin Hai Wang
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Patent number: 8383744Abstract: The invention provide a class of actinically-crosslinkable silicone-containing prepolymers which comprise dangling polysiloxane chains each having a terminal ethylenically-unsaturated group and are obtained in a one-step of RAFT polymerization of a reactive mixture comprising a polysiloxane crosslinker, a hydrophilic vinylic monomer, a RAFT agent, and a free-radical initiator. The present invention is also related to silicone hydrogel contact lenses made from a prepolymer of the invention and methods for making the contact lenses in a cost-effective way and with high consistency and high fidelity to the original lens design.Type: GrantFiled: May 20, 2010Date of Patent: February 26, 2013Assignee: Novartis AGInventors: Justyna Justynska, Bernhard Seiferling
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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: 8367765Abstract: Disclosed are a conjugated diene-based polymer from which a polymer composition excellent in fuel cost-saving properties and elongation at break can be obtained, a polymer composition containing the conjugated diene-based polymer and a reinforcing agent, and a process for producing the conjugated diene-based polymer. There is provided a conjugated diene-based polymer having a conjugated diene unit, a monomer unit based on a compound represented by the following formula (1) and a monomer unit based on a compound represented by the following formula (2). wherein R11 represents a hydrogen atom or a hydrocarbyl group, m is 0 or 1, R12 represents a hydrocarbylene group, and X1, X2 and X3 each independently represent a substituted amino group, or a hydrocarbyl group optionally having a substituent, provided that at least one of X1, X2 and X3 is a substituted amino group.Type: GrantFiled: August 9, 2011Date of Patent: February 5, 2013Assignee: Sumitomo Chemical Company, LimitedInventors: Mana Ito, Katsunari Inagaki, Mayumi Oshima
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Patent number: 8362178Abstract: The present invention provides 1-alkene-acrylate based copolymer prepared by a method comprising step of a radical polymerization reaction of 1-alkene and acrylate based monomer under presence of a metal oxide or Lewis acid. The 1-alkene-acrylated based copolymer according to the present invention is a random copolymer of 1-alkene and a polar monomer, and an amount of a polar group contained in the copolymer is very high so that the alkene is not crystalline. Accordingly, when the copolymer is processed into a polymer film, a transparency of the polymer is not affected. Due to such a feature, the copolymer can be used for optical products.Type: GrantFiled: March 13, 2007Date of Patent: January 29, 2013Assignee: LG Chem, Ltd.Inventors: Yoo-young Jung, Byoung-ho Jeon, Bae-kun Shin, Ki-soo Lee, Yong-gyu Han, Heon-Yong Kwon
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Patent number: 8361636Abstract: A luminescent polymer comprising a triarylene repeat unit which comprises a triarylene of general formula (I) which is substituted or unsubstituted and an arylene repeat unit -[-Ar-]- that is different from the triarylene repeat unit wherein X, Y, and Z are each independently O, S, CR2, SiR2 or NR and each R is independently alkyl, aryl or H.Type: GrantFiled: October 15, 2007Date of Patent: January 29, 2013Assignee: Cambridge Display Technology LimitedInventors: Carl Towns, Richard O'Dell
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Patent number: 8357771Abstract: The invention provide a new lens curing method for making hydrogel contact lenses. The new lens curing method is based on actinically-induced step-growth polymerization. The invention also provides hydrogel contact lenses prepared from the method of the invention and fluid compositions for making hydrogel contact lenses based on the new lens curing method. In addition, the invention provide prepolymers capable of undergoing actinically-induced step-growth polymerization to form hydrogel contact lenses.Type: GrantFiled: July 14, 2011Date of Patent: January 22, 2013Assignee: Novartis AGInventors: Arturo Norberto Medina, Robert Scott, Dawn Alison Smith
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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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Publication number: 20130005881Abstract: The present invention relates to a dispersion of hybrid organic-inorganic nanocomposite molecules comprising discrete inorganic silica nanoparticles that are covalently bonded to organic polymers, wherein the dispersion has a high solid content (>30% wt.) and high silica content (>35% wt.) with low coagulum (about 100-400 ppm or about 0.05% wt or less). The hybrid organic-inorganic nanocomposite is prepared by (1) hydrolyzing silane monomers at acidic conditions; (2) surface treating inorganic silica nanoparticles with silane monomers; (3) stabilizing the surface-treated inorganic silica nanoparticles with an amine stabilizer; and (4) reacting organic monomers with surface-treated inorganic silica nanoparticles.Type: ApplicationFiled: February 11, 2011Publication date: January 3, 2013Inventors: Yong Yang, Johanna Garcia De Visicaro, Robert Sheerin
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Patent number: 8344045Abstract: An ink composition is provided that includes (A) a polymerizable silicone compound having an ethylenically unsaturated group and a silicone chain, (B) tetrahydrofurfuryl (meth)acrylate, and (C) a radical polymerization initiator. There are also provided an inkjet recording method that includes (a1) a step of discharging onto a recording medium the ink composition and (b1) a step of curing the ink composition by irradiating the discharged ink composition with actinic radiation, a printed material obtained by the inkjet recording method, and a process for producing a formed printed material that includes (a2) a step of forming an image on a support by discharging the ink composition by an inkjet method, (b2) a step of obtaining a printed material having a cured image on the support by irradiating the obtained image with actinic radiation so as to cure the ink composition, and (c2) a step of molding the printed material.Type: GrantFiled: March 17, 2010Date of Patent: January 1, 2013Assignee: FUJIFILM CorporationInventors: Hironori Ohnishi, Kazuhiro Yokoi
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Patent number: 8344090Abstract: Methods for preparing functionalized polyvinylpyrrolidones with polymerizable functions. Also, amphipathic polydimethylsiloxane-PVP block copolymers, such as and (meth)acrylated and (meth)acrylamide-functionalized polyvinylpyrrolidone compounds, such as The block copolymers are useful as biomaterial components in biomedical devices. They provide improved wettability, lubricity, and material compatibility to the biomedical device, e.g., ophthalmic lenses.Type: GrantFiled: December 14, 2011Date of Patent: January 1, 2013Assignee: DSM IP Assets B.V.Inventors: James Parakka, Keith R. McCrea, Robert S. Ward
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Publication number: 20120322942Abstract: Methods and systems are provided for a dry silicone gel. The dry silicone gel comprises a base polymer having a vinyl-silicone group, a crosslinker, and a chain extender. The dry silicone gel may be made by reacting (a) a first set of components comprising a base polymer having a vinyl-silicone group and an addition cure catalyst with (b) a second set of components comprising a crosslinker, a chain extender, and additional base polymer. In certain circumstances, the base polymer and additional base polymer are vinyl-terminated polydimethylsiloxane.Type: ApplicationFiled: June 20, 2011Publication date: December 20, 2012Inventors: Stephane J.G. Berghmans, Michael A. Oar, Miguel A. Morales, Gary W. Adams, Anne-Marie Prins, Nathalie Hendrickx
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Patent number: 8334339Abstract: Disclosed are a conjugated diene-based polymer from which a polymer composition excellent in fuel cost-saving properties and a tensile strength at break can be obtained. There is provided a conjugated diene-based polymer having a monomer unit based on a conjugated diene, a monomer unit based on a compound represented by the following formula (1), and a monomer unit based on a compound represented by the following formula (2), in which at least one end of the polymer is modified with the following compound (G). V1-S1??(1) wherein V1 represents a hydrocarbyl group having a polymerizable carbon-carbon double bond, and S1 represents a substituted silyl group.) V2-A2??(2) wherein V2 represents a hydrocarbyl group having a polymerizable carbon-carbon double bond, and A2 represents a substituted amino group, or a nitrogen-containing heterocyclic group.Type: GrantFiled: August 9, 2011Date of Patent: December 18, 2012Assignee: Sumitomo Chemical Co., Ltd.Inventors: Mana Ito, Katsunari Inagaki, Mayumi Oshima
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Patent number: 8329840Abstract: The present invention relates to a photo-reactive norbornene-based copolymer which has superior miscibility to various organic solvents or additives while exhibiting superior liquid crystal alignment property and can be preferably used to an alignment layer of liquid crystal display device, a method of preparing the same, and an alignment layer including the same.Type: GrantFiled: July 6, 2011Date of Patent: December 11, 2012Assignee: LG Chem, Ltd.Inventors: Dong-Woo Yoo, Sung-Ho Chun, Young-Chul Won, Dai-Seung Choi
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Publication number: 20120309919Abstract: Disclosed are low-tack, hydrophobic, high refractive index, acrylic materials. These materials, especially useful as intraocular lens materials, contain one or more aryl acrylic hydrophobic monomers as principal device-forming monomers, a tack-reducing macromer additive and a glistening-reducing additive. In addition to their use as intraocular lens materials, the present materials are also suitable for use in other implantable ophthalmic devices.Type: ApplicationFiled: June 1, 2012Publication date: December 6, 2012Applicant: Novartis AGInventor: Walter R. Laredo
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Patent number: 8318858Abstract: A conjugated diene polymer is provided that comprises a conjugated diene-based constituent unit and a constituent unit of formula (I) below, at least one terminus of the polymer being modified by a compound of formula (II): wherein X1, X2, and X3 independently denote a group of formula (Ia) below, a hydroxy group, a hydrocarbyl group, or a substituted hydrocarbyl group, and at least one of X1, X2, and X3 is a group of formula (Ia) below or a hydroxy group, wherein R1 and R2 independently denote a hydrocarbyl group having 1 to 6 carbon atoms, a substituted hydrocarbyl group having 1 to 6 carbon atoms, a silyl group, or a substituted silyl group, and R1 and R2 may be bonded so as to form, together with the nitrogen atom, a ring structure, wherein n denotes an integer of 1 to 10, R3, R4, and R5 independently denote a hydrocarbyl group having 1 to 4 carbon atoms or a hydrocarbyloxy group having 1 to 4 carbon atoms, at least one of R3, R4, and R5 is a hydrocarbyloxy group, and A denotes aType: GrantFiled: August 21, 2009Date of Patent: November 27, 2012Assignee: Sumitomo Chemical Company, LimitedInventor: Mayumi Oshima
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Patent number: 8318879Abstract: The invention relates to soliconorganocopolymers with high silicon content, with a silicon content of ?25 wt. % in form of a high solid content solution thereof, with a solid content of >30 wt. %, obtainable with radically initiated solution polymerization of a) 20 to 75 wt. % of one or more ethylenic unsaturated monomers, and b) 25 to 80 wt. % of one or more silicones of the general formula R1aR3?aSiO(SiR2O)nSiR3?aR1a, wherein R is equal or different, and refers to a monovalent, possibly substitutes, alkyle- or alkoxy group with 1 to 18 C-atoms, R1 refers to a polymerizable group, a is 0 or 1 and n=10 to 1000, wherein 85 to 100 wt. % of the silicones b) contain one or two polymerizable groups, wherein silicones b) with only one polymerizable group only in the mixture with silicones b) with two polymerizable groups and in a weight ratio <50/50 are used, wherein the wt. %-indications for the components a) to b) refer to the whole weight of the used monomers and add up to 100 wt.Type: GrantFiled: August 7, 2007Date of Patent: November 27, 2012Assignee: Wacker Chemie AGInventor: Abdulmajid Hashemzadeh
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Patent number: 8313824Abstract: A decorative material capable of achieving both surface endurance such as abrasion resistance, and internal endurance such as subsidence resistance, water resistance and oil resistance. The decorative material is produced by laminating an ionizing radiation curing resin coating paper onto a thermosetting resin impregnated paper, and heat pressing for the integration. A surface layer and a base material layer are laminated and integrated on the rear surface thereof. The surface layer has at least a surface resin layer made of a cured material of an ionizing radiation curing resin, a blocking layer for blocking the ooze out of the uncured material of the thermosetting resin, and an impregnated paper layer formed by a paper impregnated with a thermosetting resin and cured, laminated from the surface side. At least the uppermost surface of the base material layer has an impregnated paper layer formed by a paper impregnated with a thermosetting resin and cured.Type: GrantFiled: December 17, 2004Date of Patent: November 20, 2012Assignee: Dai Nippon Printing Co., Ltd.Inventors: Eiichiro Yokochi, Kenichi Tachihara
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Publication number: 20120283394Abstract: Disclosed herein is an initiator integrated polydimethylsiloxane (iPDMS). The iPDMS is a polydimethylsiloxane undergoing a hydrosilylation reaction. The initiator 10-undecenyl 2-bromo-2-methyl propionate is integrated on the surface of iPDMS by covalent bond. At % is 0.01-1% confirmed by X-ray photoelectron spectroscopy. Disclosed herein is a method for making an initiator integrated polydimethylsiloxane. Prepolymer A, cross-linker B and vinyl-terminated initiator C were mixed below a ratio of 10:1:4-0.01 for 6-24 hours, then the elastomer was formed. And, disclosed herein is functional surface modification of initiator integrated polydimethylsiloxane and its applications for biocompatibility, organic solvent compatibility and heat-sensitive materials.Type: ApplicationFiled: July 19, 2012Publication date: November 8, 2012Inventor: Xiongming Ma
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Publication number: 20120282548Abstract: Provided is a pattern forming method comprising (i) a step of forming a film from an actinic ray-sensitive or radiation-sensitive resin composition, (ii) a step of exposing the film, and (iii) a step of developing the exposed film by using an organic solvent-containing developer, wherein the actinic ray-sensitive or radiation-sensitive resin composition comprises (A) a resin capable of decreasing the solubility for an organic solvent-containing developer by the action of an acid, (B) a compound capable of generating an acid upon irradiation with an actinic ray or radiation, (D) a solvent, and (G) a compound having at least either one of a fluorine atom and a silicon atom and having basicity or being capable of increasing the basicity by the action of an acid.Type: ApplicationFiled: January 7, 2011Publication date: November 8, 2012Applicant: FUJIFILM CORPORATIONInventors: Yuichiro Enomoto, Shinji Tarutani, Sou Kamimura, Kaoru Iwato, Keita Kato, Akinori Shibuya
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Patent number: 8304488Abstract: Conjugated diene polymer is provided that comprises a constitutional unit based on a conjugated diene and a constitutional unit based on a compound represented by Formula (1) below: R1Si(—R2-A)mR33-m??(1) wherein m represents an integer of 1 to 3; R1 represents a hydrocarbyl group having a polymerizable carbon-carbon double bond; R2 represents a hydrocarbylene group, and, when there are plural R2s, R2s each may be the same or different; A represents a substituted amino group, and, when there are plural A's, A's each may be the same or different; R3 represents a hydrocarbyl group, a substituted hydrocarbyl group or a substituted amino group, and, when there are plural R3s, R3s each may be the same or different.Type: GrantFiled: March 22, 2011Date of Patent: November 6, 2012Assignee: Sumitomo Chemical Company, LimitedInventors: Toru Fujii, Katsunari Inagaki
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Patent number: 8299166Abstract: The present invention relates to a composition comprising (i) a crosslinkable polyolefin with hydrolysable silane groups (A), and (ii) a silanol condensation catalyst comprising an organic sulphonic acid (B) which comprises the structural element Ar—R1 (I) wherein Ar is an aromatic group, which may e.g. be a benzene, naphthalene, phenantrene or anthracene group, and R1 is an organic residue comprising at least 21 C-atoms, the organic sulphonic acid (B) further comprising one, two or more sulphonic acid groups, to an article, in particular a wire or cable, comprising such a composition, and to the use of such a composition for the production of an article.Type: GrantFiled: April 16, 2007Date of Patent: October 30, 2012Assignee: Borealis Technology OyInventor: Roger Carlsson
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Publication number: 20120268710Abstract: Methods and devices for altering the power of a lens, such as an intraocular lens, are disclosed. In one method, the lens comprises a single polymer matrix containing crosslinkable pendant groups, wherein the polymer matrix increases in volume when crosslinked. The lens does not contain free monomer. Upon exposure to ultraviolet radiation, crosslinking causes the exposed portion of the lens to increase in volume, causing an increase in the refractive index. In another method, the lens comprises a polymer matrix containing photobleachable chromophores. Upon exposure to ultraviolet radiation, photobleaching causes a decrease in refractive index in the exposed portion without any change in lens thickness. These methods avoid the need to wait for diffusion to occur to change the lens shape and avoid the need for a second exposure to radiation to lock in the changes to the lens.Type: ApplicationFiled: June 29, 2012Publication date: October 25, 2012Applicants: The Ohio State University Research Foundation, Battelle Memorial InstituteInventors: Vincent D. McGinniss, Steven M. Risser, Cynthia J. Roberts
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Copolymer Having Carbosiloxane Dendrimer Structure, And Composition And Cosmetic Containing The Same
Publication number: 20120263662Abstract: The present invention relates to a copolymer having a specified carbosiloxane dendrimer structure and a long-chain alkyl group with 14 to 22 carbon atoms in a specified ratio, and a cosmetic comprising the copolymer as a cosmetic raw material. The cosmetic raw material has good miscibility with other cosmetic raw materials, and therefore, can improve stability of the formulation in a cosmetic, as well as can provide good water resistance, sebum resistance, glossiness, tactile sensation and/or adhesive properties to the hair and/or skin to a cosmetic, and also provide a cosmetic formed by blending the aforementioned cosmetic raw material, which exhibits superior surface protective properties, outer appearance and/or sensation during use.Type: ApplicationFiled: December 22, 2010Publication date: October 18, 2012Inventors: Tomohiro Iimura, Haruhiko Furukawa -
Patent number: 8288493Abstract: Provided is a siloxane compound having one end modified with at least one (meth)acrylic group via a spacer, the spacer being a straight chain having at least three ether bonds or a branched structure having at least one ether bond. The (meth)acrylic-modified siloxane compound is added to a heat or photo-curable composition, which cures into a product exhibiting water repellent, antifouling, lubricating and other properties inherent to siloxane.Type: GrantFiled: April 17, 2009Date of Patent: October 16, 2012Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Hiroyuki Kume, Masahiko Minemura, Mamoru Hagiwara
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Patent number: 8288454Abstract: Disclosed herein is a composition having a thermoset polymer and a plurality of hollow microsphere homogenously dispersed in the composition. The polymer is a cyanate ester thermoset, a phthalonitrile thermoset, a crosslinked acetylene thermoset, or a hydrosilation thermoset. Also disclosed herein is a method of: providing a thermosetting compound; adding microspheres to the thermosetting compound; and mixing the thermosetting compound while initiating crosslinking of the thermosetting compound.Type: GrantFiled: August 11, 2009Date of Patent: October 16, 2012Assignee: The United States of America, as represented by the Secretary of the NavyInventors: Teddy M Keller, Matthew Laskoski, Manoj K. Kolel-Veetil
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Patent number: 8283429Abstract: The invention provide a new class of silicone-containing prepolymers containing dangling hydrophilic polymer chains. This class of silicone-containing prepolymer is capable of being actinically crosslinked to form a silicone hydrogel material with a hydrophilic surface without post curing surface treatment. The present invention is also related to silicone hydrogel contact lenses made from this class of silicone-containing prepolymers and to methods for making the silicone hydrogel contact lenses.Type: GrantFiled: October 28, 2011Date of Patent: October 9, 2012Assignee: Novartis AGInventors: Jian S. Zhou, Frank Chang, Arturo Norberto Medina, Robert Scott
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Publication number: 20120248641Abstract: The present invention pertains to a copolymer obtained by reacting a mixture of acrylonitrile or of a mixture of acrylonitrile and an organic molecule that can be copolymerized with acrylonitrile, with which a monomeric, oligomeric and/or polymeric silazane can be obtained, said silazane containing at least one vinylic double bond. The copolymer can be brought into fiber form and/or made infusible. The production of ceramic fibers by pyrolysis is possible with fiber-like copolymers.Type: ApplicationFiled: December 8, 2010Publication date: October 4, 2012Inventors: Monika Bauer, Daniel Decker, Guenther Motz
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Publication number: 20120251605Abstract: The present invention relates to a surface-treatment agent for powders for use in cosmetics, including a specific polymer having a specified carbosiloxane dendrimer structure, as well as a cosmetic comprising a powder which has been treated with the above surface-treatment agent. The surface-treated powder does not generate hydrogen, and therefore is safe. Further the surface-treated powder can exhibits, good compatibility with other cosmetic raw materials, and thereby, the stability of the formulation in cosmetics can be improved. The surface-treated powder can provide cosmetics with good water resistance, good sebum resistance, good glossiness, a good tactile sensation, good adhesive properties to hair and/or skin, or the like. The cosmetic can also have superior surface protective properties, a superior outer appearance, and/or a superior sensation during use.Type: ApplicationFiled: December 22, 2010Publication date: October 4, 2012Inventors: Tomohiro Iimura, Haruhiko Furukawa
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Publication number: 20120252921Abstract: There is described a composition for forming an contact lens, in particular for forming a silicone hydrogel contact lens, comprising at least one first vinylic monomer or macromer having one first ethylenically unsaturated group and at least one second vinylic monomer or macromer having one second ethylenically unsaturated group, wherein the first and second ethylenically unsaturated groups are different from each other and wherein the composition further comprises a crosslinker with at least two ethylenically unsaturated (polymerizable) groups with a selected kinetic copolymerization parameter r1 of less than 1.0 relative to one of the first and second ethylenically unsaturated (polymerizable) groups as defined above.Type: ApplicationFiled: March 29, 2012Publication date: October 4, 2012Inventors: Bernhard Seiferling, Thomas Schmidt, Jürgen Vogt
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Publication number: 20120245249Abstract: There is provided new mono-(meth)acrylate functionalized silicone monomers containing carbosiloxane linkage for improved hydrolysis resistance, useful in making water absorbing silicone-hydrogel films for contact lens applications. This invention also provides homo-polymers and copolymers made from the mono-(meth)acrylate functionalized hydrophilic silicone monomers described herein. Also provided is a process for producing the monomers and polymers described herein and contact lenses produced from the same.Type: ApplicationFiled: March 21, 2011Publication date: September 27, 2012Applicant: Momentive Performance Materials Inc.Inventors: Anubhav Saxena, Umapathy Senthilkumar, Kenrick M. Lewis
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Patent number: 8273802Abstract: The present invention relates to wettable silicone hydrogels comprising the reaction product of at least one siloxane containing component and at least one reactive, hydrophilic polymeric internal wetting agent. The present invention further relates to silicone hydrogel contact lenses comprising at least one oxygen permeable component, and an amount of reactive, hydrophilic polymeric internal wetting agent sufficient to impart wettability to said device.Type: GrantFiled: June 7, 2007Date of Patent: September 25, 2012Assignee: Johnson & Johnson Vision Care, Inc.Inventors: Walter R. Laredo, Stephen C. Arnold, Kevin McCabe, Susan Orr, Azaam Alli
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Publication number: 20120238670Abstract: Hydrophobically associating nanocomposites which contain a silica, a hydrophobically modified monomer and a hydrophilic monomer. The silica constituent comprises an aqueous colloidal solution of amorphous silicon dioxide (SiO2), from 0.1 to 10% by weight of the hydrophobically modified monomer and from 10% by weight to 99.9% by weight of the hydrophilic monomer. The preparation of nanocomposites is effected by a free radical polymerization as gel polymerization in the aqueous phase. These nanocomposites have a substantially improved action as water retention agents and rheology modifiers in aqueous construction material systems and have improved properties compared with currently used products.Type: ApplicationFiled: October 28, 2010Publication date: September 20, 2012Inventors: Yulia Fogel, Peter Gaeberlein, Stefan Friedrich, Andrea Orleans
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Patent number: 8263720Abstract: Combinations of solubilized, covalently crosslinked, siloxy-containing polymers in a solvent system of a volatile hydrophobic (non-polar) liquid that is non-stinging to a user are excellent non-irritating liquid coating materials for forming films, which, after solvent evaporation, are water insoluble but water-vapor permeable and lightly adherent to surfaces such as skin and mucous membranes. The crosslinking content is greater than 1 weight % and can be as much as 16 weight %. In comparison to non-crosslinked polysiloxy films, or crosslinked films of 1 weight % or less, the enhanced crosslinked polysiloxy films, while continuing to be soluble in the solvent, have reduced tack and reduced adhesion to skin and can act as sacrificial coatings under strongly adherent pressure sensitive adhesives.Type: GrantFiled: October 5, 2011Date of Patent: September 11, 2012Assignee: Rochal Industries, LLPInventors: Joseph Salamone, Ann Beal Salamone, Xiang Yu, Levi J. Irwin
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Patent number: 8263709Abstract: A polymer composition, including: a first copolymer, including a first monomer unit derived from a monomer of Formula A: (R1SiO1.5)x(R2SiO1.5)y??Formula A wherein R1 is a polymerizable functional group, R2 is a non-polymerizable group, x is a positive integer, and y is a positive integer, provided that x+y=2n, wherein n is an integer greater than or equal to 3; a second monomer unit copolymerizable with the first monomer unit; and a second polymer having no monomer units derived from a monomer of Formula A; wherein the content of the monomer unit of Formula A is 4 wt % or less, based on the total weight of the polymer components of the polymer composition.Type: GrantFiled: November 16, 2010Date of Patent: September 11, 2012Assignees: University of Massachusetts, Sumitomo Chemical Company, LimitedInventors: E. Bryan Coughlin, Yoshinobu Nozue, Shuichiro Seno
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Patent number: 8263679Abstract: The invention provide a new class of silicone-containing prepolymers containing dangling polysiloxane-containing polymer chains. This class of silicone-containing prepolymer is capable of being actinically crosslinked to form a silicone hydrogel material with a relatively high oxygen permeability, a reduced elastic modulus, and a relatively high ion permeability. The present invention is also related to silicone hydrogel contact lenses made from this class of silicone-containing prepolymers and to methods for making the silicone hydrogel contact lenses.Type: GrantFiled: October 28, 2011Date of Patent: September 11, 2012Assignee: Novartis AGInventors: Jian S. Zhou, Dawn A. Smith
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Patent number: 8258248Abstract: The present invention is directed to cationic terpolymers, methods to make them, and the use of compositions containing said terpolymers in personal care compositions. The polymers are useful in personal care applications. The cationic terpolymers of this present invention provide the extra conditioning benefits required in a personal care product. These cationic terpolymers also contribute useful conditioning properties to hair-care and skin-care products.Type: GrantFiled: December 18, 2008Date of Patent: September 4, 2012Assignee: BASF SEInventors: John Jennings, Xian-Zhi Zhou
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Publication number: 20120220744Abstract: Ophthalmically acceptably wettable silicone hydrogel contact lenses are described. The lenses are derived from a polymerizable composition including a first siloxane monomer. The lenses have ophthalmically acceptably wettable lens surfaces when fully hydrated. Batches of silicone hydrogel contact lenses and methods of making silicone hydrogel contact lenses are also described.Type: ApplicationFiled: February 24, 2012Publication date: August 30, 2012Applicant: COOPERVISION INTERNATIONAL HOLDING COMPANY, LPInventors: Yuwen Liu, Charlie Chen, Charles A. Francis, Junhao Ge, Yuan Xu, Li Yao, Arthur Back, Ying Zheng
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Publication number: 20120220743Abstract: Dimensionally stable silicone hydrogel contact lenses are described. The lenses are derived from a polymerizable composition including a first siloxane monomer represented by formula (1): wherein m of formula (1) represents one integer from 3 to 10, n of formula (1) represents one integer from 1 to 10, R1 of formula (1) is an alkyl group having from 1 to 4 carbon atoms, and each R2 of formula (1) is independently either a hydrogen atom or a methyl group; the lenses also include units derived from a second siloxane monomer represented by formula (2): wherein R1 of formula (2) is selected from either hydrogen atom or a methyl group; R2 of formula (2) is selected from either of hydrogen atom or a hydrocarbon group having 1 to 4 carbon atoms; m of formula (2) represents an integer of from 0 to 10; n of formula (2) represents an integer of from 4 to 100; a and b represent integers of 1 or more; a+b is equal to 20-500; b/(a+b) is equal to 0.01-0.Type: ApplicationFiled: February 24, 2012Publication date: August 30, 2012Applicant: COOPERVISION INTERNATIONAL HOLDING COMPANY, LPInventors: Charles A. Francis, Ying Zheng, Yuan Xu, Li Yao, Arthur Back, Ye Hong, Charlie Chen
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Patent number: 8252850Abstract: Novel crosslink agents are described that provide for the copolymerization of at least one hydrophilic monomer with at least one lens monomer typically used to prepare materials for ophthalmic lenses. The new crosslink agents have a relatively high selectivity for the hydrophilic monomer and limited reactivity with the crosslink agent used to polymerize the lens monomer.Type: GrantFiled: January 11, 2011Date of Patent: August 28, 2012Assignee: Bausch & Lomb IncorporatedInventors: Ivan M. Nunez, Joseph A. McGee, David E. Seelye
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Patent number: 8247078Abstract: Photocurable fluorine compound, compatible with non-fluorine organic compounds, of formula (1), wherein: a is 1-4, b is 0-3, c is 1-4, provided that a+b+c is 3-5; e is 2-8; R1 has formula (2), (C4H8O)f(C3H6O)g(C2H4O)h(CH2O)iR3??(2) wherein f, g, h, and i are independently 0-100, and R1 has an MW of 30-3000, these repeating units may be sequenced at random, and R3 is C1-10 hydrocarbon; R2 is independently H, F, CH3, or CF3; Rf is a perfluoropolyether residue represented by the following formula (3), wherein j, k, l, and m are independently of each other integers of 0 to 50, provided that a molecular weight of Rf is in a range of 200 to 6000, X is F or CF3, and these repeating units may be sequenced at random; Z is a divalent organic group; and d is 0 or 1.Type: GrantFiled: July 28, 2009Date of Patent: August 21, 2012Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Yasunori Sakano, Noriyuki Koike
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Publication number: 20120208911Abstract: A method of making a foamable polystyrene composition includes combining a styrenic monomer and a co-monomer containing a polar functional group to obtain a mixture, subjecting the mixture to polymerization to obtain a styrenic co-polymer, and combining the styrenic co-polymer with a blowing agent in a foaming process to obtain foamed articles.Type: ApplicationFiled: January 11, 2012Publication date: August 16, 2012Applicant: FINA TECHNOLOGY, INC.Inventors: Wei Wang, David W. Knoeppel, Melissa Greenberg
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Publication number: 20120208973Abstract: A polysiloxane represented by the formula (1) or (2): where R, R1, R2, m and n are defined in the specification.Type: ApplicationFiled: April 25, 2012Publication date: August 16, 2012Inventors: Nobumasa OOTAKE, Kazuhiro Yoshida, Kenichi Watanabe, Yasuhito Yamaryo
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Patent number: 8242187Abstract: A silicone polymer having sufficient antibacterial properties and high transparency; and Ophthalmic lenses made of the polymer, such as a contact lens, and artificial cornea. The silicone polymer is characterized by being obtained by and a monomer having an ammonium salt in the molecule.Type: GrantFiled: September 27, 2007Date of Patent: August 14, 2012Assignee: Toray Industries, Inc.Inventors: Kazuhiko Fujisawa, Tsutomu Goshima, Masataka Nakamura
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Patent number: 8231218Abstract: Silicone hydrogel contact lenses having ophthalmically acceptable surface wettabilities are obtained from pre-extracted polymerized silicone hydrogel contact lens products having relatively large amounts of removable or extractable materials. The silicone hydrogel contact lenses can be obtained from non-polar resin based contact lens molds and without surface treatments or an interpenetrating polymeric network of a polymeric wetting agent. Related lens products, polymerizable compositions, and methods are also described.Type: GrantFiled: June 11, 2007Date of Patent: July 31, 2012Assignee: Coopervision International Holding Company, LPInventors: Ye Hong, Charlie Chen, Nick Manesis
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Publication number: 20120184699Abstract: Disclosed herein are the compounds shown below. Each R is an organic group, Cb is a carborane group, and —C6H4— is phenylene. The value of each m is a nonnegative integer, q is 0 or 1, with the proviso that if q is 0 then m is 0 or 1, p is a positive integer, r is a positive integer, and n is an integer greater than or equal to 10. Also disclosed are methods of making and crosslinking the compounds.Type: ApplicationFiled: March 29, 2012Publication date: July 19, 2012Applicant: The Government of the United State of America, as represented by the Secretary of the NavyInventors: Manoj K. Kolel-Veetil, Teddy M Keller
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Publication number: 20120184698Abstract: PROBLEM TO BE SOLVED To provide an ophthalmic lens, which can be more safely worn, that is, to provide a material, which is transparent and has high oxygen permeability and a high hydrophilic property, and to provide a novel monomer to be a raw material thereof. SOLUTION A hydrophilic polysiloxane macromonomer contains polyoxyethylene as a hydrophilic side chains in a polysiloxane main chain, wherein transparency, oxygen permeability, and hydrophilic properties of the material are controlled by regulating the length of the polysiloxane main chain, the length of the hydrophilic polyoxyethylene side chains, and the number of the side chains.Type: ApplicationFiled: March 5, 2012Publication date: July 19, 2012Applicant: COOPERVISION INTERNATIONAL HOLDING COMPANY, LPInventors: Hiroyuki Ueyama, Seiichiro Ikawa, Junichi Iwata
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Patent number: RE44096Abstract: There is provided a material which is free from fading into white due to surface scattering and is useful as a laminated article having excellent adhesion and practical low reflection.Type: GrantFiled: August 25, 2005Date of Patent: March 19, 2013Assignee: Daikin Industries, Ltd.Inventors: Kazuyuki Sato, Tsuyoshi Itagaki, Yasuo Itami