Oxygen Patents (Class 522/120)
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Patent number: 4927738Abstract: A conjugated diene copolymer comprising (A) 40 to 90 mole % of a conjugated diene component, (B) 0.5 to 10 mole % of an alpha,beta-ethylenically unsaturated carboxylic acid component, (C) 0.1 to 5 mole % of a polyfunctional alkenyl compound component and (D) 5 to 58 mole % of a monoolefinically unsaturated compound component wherein the intrinsic viscosity [.eta.] of the copolymer as measured at 30.degree. C. in dimethylformamide is 0.01 to 3.0 dl/g, the width (.DELTA.Tg) of the endothermic transition temperature section determined by a differential scanning calorimetry is 45.degree. to 120.degree. C. and the limit temperature (T.sub.1) on the lower temperature side of the endothermic transition temperature section is -40.degree. C. or less.Type: GrantFiled: November 24, 1987Date of Patent: May 22, 1990Assignee: Japan Synthetic Rubber Co., Ltd.Inventors: Shin-ichiro Iwanaga, Tatsuaki Matsunaga, Ituo Nishiwaki, Hiroji Enyo
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Patent number: 4923905Abstract: A light curable dental composition is provided. The composition comprises an ethylenic unsaturated compound and a light polymerization initiator. The light polymerization initiator is a combination of an .alpha.-diketone and a polyperoxy ester containing a benzophenone group and represented by the general formula (I) of: ##STR1## wherein R.sub.1 and R.sub.1 ' represent a tertiary alkyl group or a tertiary aralkyl group and R.sub.2 and R.sub.2 ' represent a hydrogen atom, a tertiary alkoxy group or a tertiary aralkyloxy group.Type: GrantFiled: February 26, 1988Date of Patent: May 8, 1990Assignee: Nippon Oil and Fats Co., Ltd.Inventors: Eiichi Masuhara, Yoshinori Kadoma, Takeo Matsumoto, Takeshi Komai, Eiichi Yamada, Osamu Nakachi, Godo Irukayama
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Patent number: 4909887Abstract: The dental agent is based on a liquid monomer, mixture of monomers or preymer containing acrylic, methacrylic or vinyl groups with addition of acrylic or methacrylic acid as the base mixture, and further contains(A) a halogen-sulfonated polyolefin and/or(B) a halogenated acrylate or methacrylate.The boding agent is especially well suited to prepare permanent composite dental bonding of metal and plastic and of ceramics and plastics.Type: GrantFiled: June 16, 1988Date of Patent: March 20, 1990Assignee: GDF Gesellschaft fur Dentale Forschung und Innovationen GmbHInventors: Gunther Wagenknecht, Jurgen Muller
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Patent number: 4865743Abstract: For producing solution/diffusion membranes, homogeneous dense films prepared by melt extrusion or casting from synthetic polymers, having a melting temperature above 140.degree. C., a glass transition temperature above 0.degree. C. and long time stability against boiling ethanol are irradiated with accelerated electrons and submitted to a subsequent radical graft copolymerization. After graft polymerzation, the functional groups are converted into the dissociated salts.Type: GrantFiled: December 29, 1986Date of Patent: September 12, 1989Assignee: GFT Gesellschaft fur Trenntechnik mbhInventors: Guido Ellinghorst, Bernd Goetz, Axel Niemoeller, Horst Scholz, Hartmut E. A. Brueschke, Guenter Tusel
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Patent number: 4849307Abstract: The invention relates to a novel photosensitive recording material which can be developed in aqueous solvents after its imagewise irradiation with actinic light and which consists essentially of a dimensionally stable base (A) and of a photosensitive recording layer (B). The said photosensitive recording layer (B) contains from about 48 to about 85% by weight, based on the photosensitive recording layer (B) of one or more elastomeric graft copolymers (B1) which are selected from the group consisting of polyalkylene oxide - vinyl ester - graft copolymers whose vinyl ester structural units have been hydrolyzed to a degree of not less 50 mol.-% from about 0.01 to about 10% by weight, based on the photosensitive recording layer (B), of one or more photoinitiators (B2), and from about 5 to about 30% by weight, based on the photosensitive recording layer (B), of one or more photopolymerizable monomers (B3).Type: GrantFiled: December 8, 1987Date of Patent: July 18, 1989Assignee: BASF AktiengesellschaftInventors: Gerhard Hoffmann, Horst Koch, Guenther Schulz
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Patent number: 4839261Abstract: A process for forming electroless copper plating patterns comprising: (a) laminating a substrate with a photocurable laminate, (b) exposing said photocurable laminate to a high energy ray, (c) removing unexposed parts of the laminate, and (d) electrolessly plating a desired pat of the laminate with copper; wherein said photocurable layer comprises (a) 100 parts by weight of a compound having recurring units represented by the following formulae [A] and [B] ##STR1## and (b) 5 to 1,000 parts by weight of a compound, which is compatible with compound (a), having a group represented by the formula--(R.sub.4).sub.nwherein R.sub.4 is a group having a double bond and n is an integer of 1 to 50 and characterized by a viscosity at 20.degree. C. of from 0.001 to 500 poises.Type: GrantFiled: September 15, 1987Date of Patent: June 13, 1989Assignee: Asahi Kasei Kogyo Kabushiki KaishaInventors: Nobuo Nakazaki, Hideo Ai, Manabu Miyao
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Patent number: 4824876Abstract: A light curable dental liquid or paste comprises an ethylenic unsaturated monomer, a light polymerization initiator and an organic filler. The light polymerization initiator is a combination of an organic peroxide and a pyrylium salt compound of: ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 each represents a hydrogen atom, an alkyl group and the like, X stands for an oxygen or sulfur atom and Y for an anionic functional group.Type: GrantFiled: March 23, 1987Date of Patent: April 25, 1989Assignee: Nippon Oil and Fats Co., Ltd.Inventors: Takeo Matsumoto, Eiichi Yamada, Osamu Nakachi, Godo Irukayama, Yoshihiro Minoshima
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Patent number: 4820744Abstract: A combined chemical-light-polymerization type composition for dental restoration consists of a formulation A composed mainly of a. an ethylenically polymerizable unsaturated compound, b. a photopolymerization initiator and c. a reducing agent, and a formulation B composed mainly of d. a filler and e. an organic perioxide. The formulations A and B are separately packaged and designed to be mixed for use.Type: GrantFiled: April 1, 1987Date of Patent: April 11, 1989Assignee: G-C Dental Industrial Corp.Inventors: Takao Kubota, Tetsuro Sakuma, Ryoji Nakazato
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Patent number: 4782100Abstract: Disclosed is a prosthetic composition comprising (A) a diester monomer represented by the following formula: ##STR1## wherein R.sub.1 stands for an alkylene group having 2 to 6 carbon atoms andR.sub.2 stands for an alkyl group having 2 to 4 carbon atoms,or a mixture of said diester monomer and other monomer copolymerizable therewith, (B) an orgnic polymer soluble in the monomer (A) in an amount of 0.5 to 5 parts by weight per part by weight of said monomer (A) and (C) a radical polymerization initiator.Type: GrantFiled: January 28, 1987Date of Patent: November 1, 1988Assignee: Tokuyama Soda Kabushiki KaishaInventors: Osamu Iwamoto, Toru Ono, Koshi Kusumoto
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Patent number: 4780392Abstract: This invention relates to a radiation polymerizable composition for use in a photographic element such as a lithographic printing plate comprising in admixture(a) a binder resin having the general formula--A--B--C--wherein a plurality of each of components A, B and C occur in ordered or random sequence in the resin and wherein A is present in said resin at about 5% to about 20% by weight and comprises groups of the formula ##STR1## B is present in said resin at about 4% to about 30% by weight and comprises groups of the formula ##STR2## and C is present in said resin at about 50% to about 91% by weight and comprises acetal groups consisting of groups of the formulae ##STR3## where R is lower alkyl or hydrogen, and wherein said group I is present in component C from about 75% to about 85%, group II is present in component C from about 3% to about 5%; and group III is present in component C from about 10% to about 22%;(b) a photoinitiator; and(c) an acrylic monomer having one or more unsaturated groups.Type: GrantFiled: August 2, 1985Date of Patent: October 25, 1988Assignee: Hoechst Celanese CorporationInventors: John E. Walls, Carlos Tellechea, Major S. Dhillon
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Patent number: 4767797Abstract: A linear polymer having a recurring unit represented by the formula (I): ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 each independently is a hydrogen atom, a C.sub.1-10 alkyl group, a C.sub.6-10 cycloalkyl group, an aryl group, or a halogen atom and the ethynyl group is in either meta position or para position to the main polymer chain;and a weight-average molecular weight of 1,000 to 1,000,000. A resin composition consisting essentially of (i) a polymer having a recurring unit represented by the formula (I) or a polymer having a recurring unit represented by the formula (I) and a recurring unit represented by the formula (II): ##STR2## wherein X and Y each independently is a C.sub.6-20 aryl group, a C.sub.1-10 alkyl group, a C.sub.6-10 cycloalkyl group, a silyl group having a C.sub.1-10 alkyl group or a C.sub.Type: GrantFiled: August 25, 1986Date of Patent: August 30, 1988Assignee: Asahi Kasei Kogyo Kabushiki KaishaInventors: Hideo Ai, Yohsuke Koizumi, Naohiro Tsuruta
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Patent number: 4761436Abstract: A contact lens comprising a lens substrate in shape of a lens which comprises a triorganovinylsilane based polymer, said lens substrate having a hydrophilic polymeric chain grafted onto the surface thereof. This contact lens is not only excellent in oxygen permeability, mechanical strength, dimensional stability, vision correcting ability, staining resistance and handleability, but also good in affinity with eyes due to good hydrophilic property possessed by the surface, which can be worn continuously for a long time.Type: GrantFiled: October 21, 1986Date of Patent: August 2, 1988Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Yoshiyuki Kohno, Kenichi Tomita, Minoru Takamizawa, Tetsuya Mayuzumi, Shigehiro Nagura, Akira Yamamoto
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Patent number: 4746685Abstract: A light curable dental composition is provided. The composition comprises an ethylenic unsaturated compound and a light polymerization initiator. The light polymerization initiator is selected from a combination of an organic peroxide and a pyrylium salt compound of: ##STR1## Wherein R.sub.1, R.sub.2, and R.sub.3 each represents a hydrogen atom, an alkyl group and the like, X stands for an oxygen or sulfur atom and Y for an anionic functional group; a polyperoxy ester containing a benzophenone group; and a combination the polyperoxy ester and an .alpha.-diketone.Type: GrantFiled: August 23, 1985Date of Patent: May 24, 1988Assignee: Nippon Oil and Fats Co., Ltd.Inventors: Eiichi Masuhara, Yoshinori Kadoma, Takeo Matsumoto, Takeshi Komai, Eiichi Yamada, Osamu Nakachi, Godo Irukayama
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Patent number: 4745138Abstract: Radiation-curable low molecular weight partial ester copolymer compositions comprising products of a terminally ethylenically unsaturated compound and a maleic anhydride characterized by having free-anhydride functionality are provided. The partial esters are produced by esterification of certain copolymers with a hydroxyalkyl acrylyl compound, or an admixture thereof with a monohydric alcohol. The compositions of the invention are useful as radiation cross-linkable diluents for radiation-hardenable compositions, particularly in improving adhesion promotion and/or dispersive capabilities of binder resins.Type: GrantFiled: August 5, 1985Date of Patent: May 17, 1988Assignee: Pony Industries, Inc.Inventors: Chandrakant B. Thanawalla, Gary W. Ceska
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Patent number: 4722947Abstract: Radiation-curable low molecular weight partial ester copolymer compositions comprising products of a terminally ethylenically unsaturated compound and a maleic anhydride characterized by having free-anhydride functionality are provided. The partial esters are produced by esterification of certain copolymers under anhydrous conditions with a hydroxyalkyl acrylyl compound, or an admixture thereof with a monohydric alcohol. The compositions of the invention are useful as radiation cross-linkable diluents for radiation-hardenable compositions, particularly in improving adhesion promotion and/or dispersive capabilities of binder resins.Type: GrantFiled: August 5, 1985Date of Patent: February 2, 1988Assignee: Pony Industries, Inc.Inventors: Chandrakant B. Thanawalla, Gary W. Ceska
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Patent number: 4721648Abstract: For production of a composite glass pane from at least one silicate glass pane and at least one layer of a transparent plastics material, the plastics layer is glued to the glass pane by means of an UV-hardening adhesive. A homogeneous solution of photopolymerizable acrylic monomers (component A), a polymer (component B) and a photoinitiator (component C) is used as the adhesive, wherein the component (A) consists of a mixture of at least one .alpha., .beta.-unsaturated carboxylic acid and at least one monofunctional .alpha.,.beta.-unsaturated carboxylic acid ester of an alcohol comprising 2 to 10 C-atoms, possibly comprising also oxygen atoms in the form of ether groups and/or hydroxyl groups, and component (B) consists of a polymer composed entirely or predominantly of vinyl chloride, which polymer is possibly after-chlorinated.Type: GrantFiled: June 23, 1986Date of Patent: January 26, 1988Assignee: Saint-Gobain VitrageInventors: Wolfgang Kleine-Doepke, M. Reinhold Martin, Helmer Raedisch, Gerhard Holzer
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Patent number: 4696876Abstract: Novel photopolymerizable compositions are provided which comprise a dye sensitizer, a linear polyethylenimine as a polymerization initiator and a free radical polymerizable ethylenic unsaturated monomer.In the preferred embodiments, the linear polyethylenimine is used in combination with lithium acrylate.Type: GrantFiled: May 12, 1986Date of Patent: September 29, 1987Assignee: Polaroid CorporationInventor: John J. Cael
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Patent number: 4654294Abstract: A photosensitive composition which comprises:(a) a vinyl alcohol polymer having at least one thiol group in the molecule thereof,(b) an ethylenically unsaturated compound which is radically polymerizable, and,(c) a photoinitiator,and is free from the defect of the removal of the vinyl alcohol polymer at the hardened regions upon development with water.Type: GrantFiled: March 18, 1986Date of Patent: March 31, 1987Assignee: Kuraray Co., Ltd.Inventors: Toshiaki Sato, Junnosuke Yamauchi, Takuji Okaya
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Patent number: 4622366Abstract: A uranium adsorbing material made of a graft polymer with a graft ratio of 20 to 100% which contains amidoxime groups and cation exchange groups in a molar ratio of 1:1 to 20:1 and a process for preparing said material are herein disclosed.Type: GrantFiled: November 28, 1984Date of Patent: November 11, 1986Assignee: Japan Atomic Energy Research InstituteInventors: Takanobu Sugo, Jiro Okamoto, Isao Ishigaki, Akio Katakai
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Patent number: 4607065Abstract: A sealant composition for the puncture-sealing tire and a method of producing the same are disclosed. This sealant composition is crosslinking-reaction type and comprises (A) at least one rubber, (B) a tackifier, (C) an acryloyl or methacryloyl group-containing polymerizable unsaturated compound, (D) a filler and (E) a photopolymerization initiator. In the production of the sealant composition, the component (A) is first reacted with the component (C) and then kneaded with the components (B), (D) and (E).Type: GrantFiled: May 15, 1985Date of Patent: August 19, 1986Assignee: Bridgestone Tire Company LimitedInventors: Takashi Kitamura, Yukio Fukuura, Itsuo Tanuma, Toshikazu Shinogaya, Yuji Noda
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Patent number: 4602045Abstract: Process of radiation graft polymerizing a fluorinated unsaturated carboxylic acid monomer to a fluoropolymeric permselective membrane in order to improve its performance when used in an electrolysis cell.Type: GrantFiled: May 9, 1985Date of Patent: July 22, 1986Assignee: ICI Australia LimitedInventors: Michael V. Markus, George H. Barnett
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Patent number: 4600649Abstract: Ultraviolet-curable, liquid coating compositions are disclosed which are resistant to abrasion and which are strongly adherent to basic plastic surfaces. These compositions comprise one or more polyacrylates or polymethacrylates, preferably including from 70% to 85% of trimethylol propane triacrylate, from 5% to 15% of a carboxylic acid which contains acrylic or methacrylic unsaturation, preferably acrylic acid itself, and photoinitiators (which are preferably ketonic and which desirably comprise a substituted acetophenone and benzophenone) are used to render the composition sensitive to ultraviolet light. The polyacrylate component preferably includes from 1% to 12% of a diacrylate or dimethacrylate of a diglycidyl ether of a bisphenol in which the molecular weight of the diglycidyl ether is less than about 600. The above proportions are based on the total weight of polymerizable material. The composition preferably also includes 0.5% to 2.Type: GrantFiled: October 22, 1984Date of Patent: July 15, 1986Assignee: DeSoto, Inc.Inventor: A. Frank Leo
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Patent number: 4588664Abstract: Novel photopolymerizable compositions are provided which comprise a dye sensitizer, a branched polyethylenimine as a polymerization initiator and a free radical polymerizable ethylenic unsaturated monomer.In the preferred embodiments, the branched polyethylenimine is used in combination with lithium acrylate. This combination provides dry coatings which may be stored for extended periods prior to being activated for imaging, and which produce volume holograms of very high resolution and diffraction efficiency.Type: GrantFiled: August 20, 1984Date of Patent: May 13, 1986Assignee: Polaroid CorporationInventors: Herbert L. Fielding, Richard T. Ingwall
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Patent number: 4585808Abstract: A method of reducing the monomer content of a polymer or polymerization media comprising subjecting the polymer containing the monomer to sufficient irradiation with a high energy radiation to polymerize said monomer, said radiation preferably occurring in presence of chemical agent that accelerate the rate of consumption of the undesirable monomer, i.e. the monomer considered hazardous and/or protects the polymer from radiation degradation.Type: GrantFiled: February 4, 1982Date of Patent: April 29, 1986Assignee: The Goodyear Tire & Rubber CompanyInventor: Patrick J. Reilly
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Patent number: 4557749Abstract: Device for conditioning hydrosoluble fertilizers and/or hydrosoluble products usable in agriculture, wherein it comprises a sealed container, whereof at least one of the walls is constituted by a hydrophobic polymer diaphragm having hydrophilic inclusions, said container containing the fertilizers and/or products.A process for preparing a hydrophobic polymer diaphragm containing hydrophilic inclusions and usable in the conditioning device consists of preparing a hydrophobic polymer powder grafted by hydrophilic monomers and bringing this powder into the form of a diaphragm by different processes performed hot.Type: GrantFiled: September 21, 1982Date of Patent: December 10, 1985Assignee: Commissariat a l'Energie AtomiqueInventors: Jeanne Berthet, Marie-Francoise Blin, Gilbert Gaussens, Jean R. Noaillac