Specified Rate-affecting Material Is Heterocyclic Patents (Class 522/26)
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Publication number: 20100048756Abstract: A radiation curable composition comprising a curable compound, a photo-initiator and a co-initiator, characterized in that said co-initiator is a oligomer or polymer having a repeating unit, said repeating unit comprising at least two tertiary amines, and said polymer being prepared by the polycondensation of di- or oligofunctional Michael acceptors with mono- or oligofunctional aliphatic primary amines or with di- or oligofunctional aliphatic secondary amines or with a mixture thereof.Type: ApplicationFiled: December 17, 2007Publication date: February 25, 2010Applicant: Agfa Graphics NVInventors: Johan Loccufier, Roland Claes
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Publication number: 20100041784Abstract: A radiation curable composition comprising a curable compound, a photo-initiator and a co-initiator characterized in that said co-initiator is represented by Formula (I), wherein MA is the residue of a mono- or oligofunctional Michael acceptor; L is a divalent linking group positioning the two tertiary amines in a 1-3 to 1-10 position, with the proviso that both amines are aliphatic; R1, R2 and R3 independently represent an optionally substituted alkyl group, an optionally substituted alkenyl group, an optionally substituted alkynyl group or an optionally substituted (hetero) alkaryl group; any two of R1, R2 and R3 may represent the necessary atoms to form a ring; any two of R1, R2 and R3 may represent the necessary atoms to form a ring with any of the atoms of the linking group L; n is an integer ranging from 1 to 6.Type: ApplicationFiled: December 17, 2007Publication date: February 18, 2010Applicant: Agfa Graphics NVInventors: Johan Loccufier, Roland Claes, Jaymes Van Luppen
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Patent number: 7662541Abstract: A photosensitive resin composition and a photosensitive dry film which are excellent in both sensitivity and stability and are well-balanced in tent strength, resolution and plating non-staining are provided. The photosensitive resin composition comprises an alkali-soluble resin (A), a photopolymerizable compound (B) and a photopolymerization initiator (C), and the polymerization initiator (C) comprises a hexaarylbisimidazole based compound (C1) and a multifunctional thiol compound (C2) as essential components. The photosensitive dry film has at least a photosensitive resin layer formed from the photosensitive resin composition on a support film.Type: GrantFiled: November 22, 2005Date of Patent: February 16, 2010Assignee: Tokyo Ohka Kogyo Co., Ltd.Inventors: Teruhiro Uematsu, Naoya Katsumata
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Patent number: 7648738Abstract: Compounds of the formulae (I), (II), (III) and (IV), wherein Ch1 is e.g. the formula (V) or (VI); Ch2 is the formula (VII) or (VIII); Het1 is for example furyl, thienyl, pyrrolyl, pyridyl, benzothienyl, quinolyl or bithienyl; each of which is optionally substituted; Het2 and Het2? e.g. are furylene, thienylene, pyrrolylene, benzothienylene, quinolylene, furylenecarbonyl, thienylenecarbonyl, benzothienylenecarbonyl or bithienylenecarbonyl; each of which is optionally substituted; A1, and Ar1? i.a. are phenyl, naphthyl, benzoyl or naphthoyl, each of which is optionally substituted; Ar2 is for example phenylene, optionally substituted; M i.a. is C1-C20alkylene; R1 is for example C1-C12alkyl or phenyl; R2 and R2? for example are hydrogen or C1-C20 alkyl; exhibit an unexpectedly good performance in photopolymerization reactions.Type: GrantFiled: November 24, 2003Date of Patent: January 19, 2010Assignee: Ciba Specialty Chemicals CorporationInventors: Junichi Tanabe, Hisatoshi Kura, Hidetaka Oka, Masaki Ohwa
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Publication number: 20090326091Abstract: A radiation curable composition comprising a curable compound, a photo-initiator and a co-initiator, wherein said co-initiator has a structure according to Formula I A-L-B ??Formula I wherein A represents a structural moiety comprising an aromatic tertiary amine; B represents a structural moiety comprising at least one aliphatic tertiary amine; L represents a divalent linking group positioning the nitrogen atom of the aromatic amine of the structural moiety A and the nitrogen of at least one aliphatic amine of the structural moiety B in a 1-3 to 1-23 position; with the proviso that at least one aromatic and at least one aliphatic amine each have at least one alfa-hydrogen.Type: ApplicationFiled: November 19, 2007Publication date: December 31, 2009Applicant: Agfa Graphics NVInventors: Johan Loccufier, Roland Claes
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Patent number: 7629051Abstract: An optical film comprising a support and a layer containing a cured product of a composition which contains a fluorinated photopolymerization initiator and an ionizing radiation-curing compound.Type: GrantFiled: June 1, 2006Date of Patent: December 8, 2009Assignee: Fujifilm CorporationInventors: Yuuichi Fukushige, Hiroyuki Yoneyama
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Publication number: 20090297724Abstract: Described in preferred embodiments are UV curable coating compositions including a unique blend of aliphatic urethane acrylate resins. Also described are coated articles and methods for their production involving the use of the coating compositions.Type: ApplicationFiled: May 30, 2008Publication date: December 3, 2009Inventor: Eileen M. Weber
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Patent number: 7618683Abstract: An ink composition is provided that includes (A) an acid-generating compound having an anion represented by any one of Formulae (I) to (XI), (B) a cationically polymerizable compound, and (C) a colorant. (In the formulae, R1 to R3 independently denote a monovalent organic group, Rb1 to Rb3, Rf1, and Rf2 independently denote a perfluoroalkyl group, a perfluoroaryl group, or an aryl group substituted with at least one fluorine atom or perfluoroalkyl group, X1 to X3 independently denote a monovalent organic group, and Y1 denotes a hydrogen atom or a monovalent organic group.Type: GrantFiled: January 5, 2007Date of Patent: November 17, 2009Assignee: FUJIFILM CorporationInventor: Tomotaka Tsuchimura
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Patent number: 7615323Abstract: Lithographic printing plate precursor comprising (a) a lithographic substrate with a hydrophilic surface and (b) a radiation-sensitive coating on the hydrophilic surface comprising (i) one or more types of monomers and/or oligomers and/or polymers, each comprising at least one ethylenically unsaturated group accessible to a free radical polymerization, (ii) at least one sensitizer, and at least one coinitiator capable of forming free radicals together with the sensitizer (ii); characterized in that the at least one sensitizer is an oligomeric or polymeric compound comprising the following structural unit (Formula (I)), wherein ?1 is an aromatic or heteroaromatic unit or a combination of the two so that a conjugated n-system is present between the two groups Z in structure (I), each Z independently represents a heteroatom, each R1 and R2 is independently selected from a halogen atom, an alkyl, aryl, alkylaryl or aralkyl group, a group —NR3R4 and a group —OR5, each R3, R4 and R5 is independently selected from aType: GrantFiled: November 11, 2005Date of Patent: November 10, 2009Assignee: Kodak Graphic Communications, GmbHInventors: Bernd Strehmel, Harald Baumann, Udo Dwars, Detlef Pietsch, Axel Draber, Michael Mursal
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Publication number: 20090270528Abstract: The disclosure provides a new photopolymerizable resin system for dental restorative materials. The resin system utilizes a thiol-ene component as the reactive diluent in dimethacrylate systems. The ternary resin system comprises a thiol monomer, an ene monomer and a dimethacrylate monomer. Use of an off-stoichiometric ratio of thiol:ene functional groups in favor of excess thiols results in enhanced overall functional group conversion, improved polymer mechanical properties, and reduced shrinkage stress of the ternary system when compared to either traditional dimethacrylate or thiol-ene resin systems.Type: ApplicationFiled: March 31, 2009Publication date: October 29, 2009Applicant: The Regents of the University of Colorado, a body corporateInventors: Christopher N. Bowman, Neil B. Cramer
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Patent number: 7585515Abstract: The present invention relates to a novel composition for dental, orthopedic and drug delivery purpose. Specifically, it relates to composition comprising an admixture of a resorbable bone substitute and a crosslinkable prepolymer. It also relates to the composition formed by crosslinking the admixture.Type: GrantFiled: May 12, 2008Date of Patent: September 8, 2009Assignee: A Enterprises, Inc.Inventors: Arthur Ashman, V. Prasad Shastri
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Patent number: 7582685Abstract: A multi-photon reactive composition comprises an ethylenically unsaturated liquid polysilazane precursor, a multi-functional thiol additive, a multi-ethylenically-unsaturated additive different from the polysilazane, and a multi-photon photocuring composition. The invention can be used to provide ceramic-based microstructures as, for example, high temperature resistant materials, including devices such as microcombustors, micro-heat-exchangers, sensor and actuator systems, microfluidic devices, and micro-optics systems that can be used independently or integrated into other systems.Type: GrantFiled: December 27, 2005Date of Patent: September 1, 2009Assignee: 3M Innovative Properties CompanyInventors: David S. Arney, Feng Bai
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Patent number: 7574959Abstract: Radiation-sensitive composition comprising (a) at least one photopolymerizable compound with at least one ethylenically unsaturated group accessible to a free-radical polymerization, wherein the at least one photopolymerizable compound has a molecular weight of 3,000 or less and can be obtained by reacting a diisocyanate with (I) an ethylenically unsaturated compound with a hydroxy group, and at the same time (ii) a saturated organic compound with an NH group and an OH group, wherein the reactants are used in amounts according to the following condition: Number of moles of isocyanate groups ?number of moles of OH plus NH groups; (b) at least one sensitizer which absorbs radiation from the wavelength range of 250 to 450 nm of the electromagnetic spectrum and is selected from: dihydropyridines of formula (I) and oxazole derivatives of formula (II): (II) (c) at least one coinitiator capable of forming free radicals together with the sensitizer (b) and selected from 2,2?,4,4?,5?5-hexaarylbiimidazoles, compounds wType: GrantFiled: November 18, 2004Date of Patent: August 18, 2009Assignee: Kodak Graphic Communications, GmbHInventors: Harald Baumann, Udo Dwars, Michael Flugel
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Publication number: 20090197988Abstract: An object of the present invention is to provide an energy ray-curable ink composition which is excellent in curability and adhesion, and is also excellent in storage stability. The present invention relates to an energy ray-curable ink composition comprising a coloring material; a polyfunctional monomer having three or more ethylenical double bonds in one molecule as a polymerizable compound; an ?-aminoalkylphenone-based compound and a thioxanthone-based compound as photopolymerization initiators; and a hindered amine-based compound having a 2,2,6,6-tetramethylpiperidinyl group as an antigelling agent.Type: ApplicationFiled: February 4, 2009Publication date: August 6, 2009Inventors: Katsuyuki Kito, Masayuki Oya, Satoshi Kobayashi
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Patent number: 7527916Abstract: A composition that is photopolymerizable upon absorption of light in the wavelength range from 300 to 450 nm, the composition comprising a binder, a polymerizable compound, a sensitizer and a photoinitiator, characterized in that the sensitizer is an optical brightening agent having a solubility in methyl ethyl ketone of at least 15 g/kg measured at 20° C., allows to produce printing plates without pinhole defects, even if the printing plate precursor is stored before exposure and processing.Type: GrantFiled: September 1, 2004Date of Patent: May 5, 2009Assignee: Agfa Graphics, N.V.Inventors: Paul Callant, Marc Van Damme
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Publication number: 20090092767Abstract: A stable viscosity coating composition, a method of forming the stable viscosity coating composition and a method for using the stable viscosity coating composition in a micro-molding imprint lithographic process, such as Step and Flash Imprint Lithography is disclosed. The stable viscosity coating composition may include at least one vinyl ether having at least one vinyl ether group (—OCR?CR2), and a stabilizer, wherein the stabilizer may be 9-anthracenemethanol, a substituted 9-anthracenemethanol, phenothiazine, or a substituted phenothiazine. The coating composition may include a radiation sensitive photoacid generator (PAG). The method of forming the coating composition comprises combining at least one vinyl ether having at least one vinyl ether group (—OCR?CR2), and at least one stabilizer.Type: ApplicationFiled: December 16, 2008Publication date: April 9, 2009Inventors: Frances Anne Houle, Hiroshi Ito
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Publication number: 20090088490Abstract: A simultaneous two-photon absorption three-dimensional recording material includes at least one kind of dye having at least one polymerizable group.Type: ApplicationFiled: September 26, 2008Publication date: April 2, 2009Applicant: FUJIFILM CORPORATIONInventors: Masaharu AKIBA, Hiroo TAKIZAWA
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Publication number: 20090087576Abstract: An ink composition is provided that includes compound A represented by Formula (I) below, compound B represented by Formula (II) below, and a polymerizable compound, wherein, in Formula (I), X denotes O, S, or NRa, n1 denotes 0 or 1, Ra, R1, R2, R3, R4, R5, R6, R7, R8, R9, and R10 independently denote a hydrogen atom or a monovalent substituent, and two of R1, R2, R3, R4, R5, R6, R7, and R8 that are adjacent may be linked to each other to form a ring, and in Formula (II), X denotes O, S, or NRb, n2 denotes 0 or 1, Rb, R11, R12, R13, R14, R15, R16, R17, and R18 independently denote a hydrogen atom or a monovalent substituent, and two of R11, R12, R13, and R14 that are adjacent may be linked to each other to form a ring. There is also provided an inkjet recording method comprising (a) a step of discharging the ink composition onto a recording medium, and (b) a step of curing the ink composition by irradiating the discharged ink composition with actinic radiation.Type: ApplicationFiled: September 22, 2008Publication date: April 2, 2009Applicant: FUJIFILM CORPORATIONInventor: Tsutomu UMEBAYASHI
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Publication number: 20090087759Abstract: Compounds of the formula (I), (II), and wherein R1, R2, R?2 and R??2 for example are C1-C20alkyl; R3, R4, and R5 for example independently of one another are hydrogen or a defined substituent provided that at least one of R3, R4 or R5 is other than hydrogen or C1-C20alkyl; R6, R7, R8, R?6, R?7, R?8, R?6, R?7, R??6 and R??7 for example independently of one another have one of the meanings as given for R3, R4, and R5; and R9 for example is C1-C20alkyl; exhibit an unexpectedly good performance in photopolymerization reactions.Type: ApplicationFiled: November 8, 2006Publication date: April 2, 2009Inventors: Akira Matsumoto, Junichi Tanabe, Hisatoshi Kura, Masaki Ohwa
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Publication number: 20090081421Abstract: A photocurable coating composition is provided that includes (A) a compound represented by Formula (i) below, (B) a photopolymerization initiator, and (C) a compound having an ethylenically unsaturated bond. (In Formula (I), X denotes O, S, or NR, n denotes an integer of 0 to 4, R denotes a hydrogen atom, an alkyl group, or an acyl group, R1 to R8 independently denote a hydrogen atom or a monovalent substituent, and R1 to R4 may form a ring in which two thereof that are adjacent are bonded to each other.Type: ApplicationFiled: September 8, 2008Publication date: March 26, 2009Applicant: FUJIFILM CorporationInventor: Ryuki KAKINO
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Publication number: 20080308301Abstract: The present invention provides a photocurable and thermosetting resin composition having excellent surface curability and deep curability, allowing pattern formation with a laser beam having a wavelength of 350 to 410 nm, and being useful as a solder resist for laser direct imaging, the composition including a carboxylic resin (A), an oxime ester-based photopolymerization initiator (B) such as 2-(acetyloxyiminomethyl)thioxanthene-9-one, and another photopolymerization initiator than (B) such as 2,4,6-trimethylbenzoyl-diphenyl-phosphine oxide, and a sulfur compound (E) such as 2-mercaptobenzothiazole.Type: ApplicationFiled: August 21, 2008Publication date: December 18, 2008Inventors: Nobuhito Itoh, Yoko Shibasaki, Kenji Kato, Masao Arima
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Publication number: 20080274201Abstract: 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: ApplicationFiled: July 11, 2008Publication date: November 6, 2008Applicant: Board of Regents, The University of Texas SystemInventors: Jeffrey A. Hubbell, Chandrashekhar P. Pathak, Amarpreet S. Sawhney, Neil P. Desai, Syed F.A. Hossainy
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Patent number: 7439277Abstract: A process for the preparation of a hydroperoxide functionalized rubber compound by the conversion of triplet state oxygen to singlet state oxygen in the presence of oxygen and a light-induced photoreductant. A dispersion of an unsaturated rubber component in a carrier solvent is introduced into a reactor containing a permeable catalyst bed comprising a light-induced photoreductant component supported on a particulate substrate component and passed through the catalyst bed. A gaseous oxidizing agent is passed through the catalyst bed in contact with the rubber-containing dispersion. The catalyst bed is irradiated with electromagnetic light radiation in the ultraviolet or visible light range at an intensity sufficient to convert triplet oxygen in the oxygenated rubber component to singlet oxygen. The oxygenated rubber component is then recovered from the reactor.Type: GrantFiled: May 19, 2005Date of Patent: October 21, 2008Assignee: Fina Technology, Inc.Inventors: Jay Reimers, Jose Sosa
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Publication number: 20080227883Abstract: A photocurable and thermosetting composition comprises (A) a carboxyl group-containing resin having at least one carboxyl group in its molecule, (B) a photopolymerization initiator having an oxime linkage represented by the following general formula (I), (C) a reactive diluent, and (D) an epoxy compound having two or more epoxy groups in its molecule. The above-mentioned photopolymerization initiator (B) is incorporated into a formulation which is different from at least a formulation into which the above-mentioned carboxyl group-containing resin (A) and the above-mentioned reactive diluent (C) are incorporated to formulate a system comprising at least two parts.Type: ApplicationFiled: May 16, 2008Publication date: September 18, 2008Applicant: Taiyo Ink Manufacturing Co., Ltd.Inventors: Hideaki Kojima, Hidekazu Miyabe, Shouji Minegishi, Naoki Yoneda, Yoshitaka Hirai
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Publication number: 20080194720Abstract: Coating composition comprising one or more polythiols and one or more polyisocyanates and a latent base catalyst which is activatable by moisture, wherein the equivalence ratio NCO:SH is between 1:2 and 2:1. The latent catalyst is selected from the group of oxazolidine, aldimine, ketimine, and enamine. The latent catalyst is present in an amount of up to 20% relative to the weight of the curable material. The composition further comprises one or more photoinitiators in an amount of up to 4% relative to the weight of the curable material.Type: ApplicationFiled: September 16, 2005Publication date: August 14, 2008Applicant: Akzo Nobel Coatings International B.V.Inventors: Franciscus Hubertus Maria Stappers, Joseph Theodorus Maria Van Dijk
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Publication number: 20080182031Abstract: An ink composition of the present invention is disclosed, which contains (i) a sensitizing dye represented by the following Formula (I); (ii) at least one polymerization initiator selected from the group consisting of ?-aminoketones and acyl phosphine oxides; and (iii) an ethylenically unsaturated bond-containing polymerizable compound. In Formula (I), X represents O, S or NR; n represents an integer of 0 or 1; R represents a hydrogen atom, an alkyl group or an acyl group; R1 to R8 each independently represent a hydrogen atom or a monovalent substituent; R1 and R2, R2 and R3, and R3 and R4 may be connected to each other to form a ring; and R5 or R6 may be connected to R7 or R8 to form an aliphatic ring but not to form an aromatic ring.Type: ApplicationFiled: January 14, 2008Publication date: July 31, 2008Applicant: FUJIFILM CORPORATIONInventors: Tokihiko MATSUMURA, Ippei NAKAMURA
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Patent number: 7371783Abstract: Provided is an alkali-soluble maleimide-based copolymer which comprises, as essential constituents, 5 to 50% by mass of a maleimide monomer unit which is at least one unit selected from the group consisting of a N-cyclohexylmaleimide monomer unit, a N-benzylmaleimide monomer unit and a substituted N-benzylmaleimide monomer unit, 8 to 30% by mass of the (meth)acrylic acid monomer unit and 30 to 87% by mass of a (meth)acrylic acid ester monomer unit and which satisfies the condition represented by the formula: 0.4×X?Y?0.5×X+10 where X is the content, in % by mass, of the N-cyclohexylmaleimide monomer unit, the N-benzylmaleimide monomer unit and the substituted N-benzylmaleimide monomer unit and Y is the content, in % by mass, of the (meth)acrylic acid monomer unit. Also provided are a color filter and a liquid crystal display which are formed by using the ionizing radiation-curable resin composition.Type: GrantFiled: September 24, 2002Date of Patent: May 13, 2008Assignees: Nippon Shokubai Co., Ltd., Dainippon Printing Co., Ltd.Inventors: Masahiro Tatsuzawa, Kiyoshi Ito, Shinji Hayashi, Shunsuke Sega, Tomonobu Sumino, Minoru Yamaguchi, Tomomasa Kaneko, Kenichi Ueda
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Patent number: 7365106Abstract: A cationically curable composition for dental use containing a cationic polymerization initiator (I) and cationically polymerizable monomers (II), the cationically polymerizable monomers (II) containing an oxetane compound and an epoxy compound or an alkenyl ether compound at a ratio of amounts that satisfy the conditions expressed by the following formula, (a×A):(b×B)=91:9 to 45:55 wherein A is a mol number of the oxetane compound, “a” is an average number of the oxetane functional group contained in one molecule of the oxetane compound, B is a mol number of the epoxy compound or the alkenyl ether compound, and “b” is an average number of the epoxy functional group contained in one molecule of the epoxy compound or an average number of the alkenyl ether functional group contained in one molecule of the alkenyl ether compound.Type: GrantFiled: April 26, 2005Date of Patent: April 29, 2008Assignees: Tokuyama Corporation, Tokuyama Dental CorporationInventors: Takeshi Suzuki, Hideki Kazama
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Patent number: 7329692Abstract: Compositions are provided that that can be used as an initiator system for free radical polymerization reactions. More specifically, the initiator systems include an electron acceptor and an electron donor. The electron donors are arylsulfinate salts having a cation that contains at least one carbon atom and either a positively charged nitrogen atom or a positively charged phosphorus atom. Methods of polymerization are also provided that can be used to prepare polymeric material with the initiator systems. The initiator systems can be thermal initiator systems, photoinitiator systems, or combinations thereof.Type: GrantFiled: January 31, 2006Date of Patent: February 12, 2008Assignee: 3M Innovative Properties CompanyInventors: Rajdeep S. Kalgutkar, Michael C. Palazzotto
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Patent number: 7291657Abstract: An ultraviolet (UV) light curable formulation useful for repairing composite materials, comprising: an acrylic oligomer, an acrylic monomer, and a photoinitiator. This formulation may include fiberglass. The photoinitiator can be a combination of a bis-acylphosphine oxide and an alpha hydroxy ketone. The formulation can cure rapidly, such as in about 20 minutes. The cured formulation can have a Tg above 150° C.Type: GrantFiled: December 6, 2005Date of Patent: November 6, 2007Assignee: Texas Research International, Inc.Inventors: John W. Bulluck, Brad A. Rix
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Patent number: 7265161Abstract: A multi-photon reactive composition including: (a) at least one reactive species; and (b) multi-photon photoinitiator system; and (c) a plurality of substantially inorganic particles, wherein the particles have an average particle size of less than about 10 microns in diameter.Type: GrantFiled: October 2, 2002Date of Patent: September 4, 2007Assignee: 3M Innovative Properties CompanyInventors: Catherine A. Leatherdale, Craig R. Schardt, D. Scott Thompson, Wendy L. Thompson
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Patent number: 7247660Abstract: The invention concerns dental compositions. Said composition comprises (1) a silicone crosslinkable and/or polymerizable by cation process; (2) an efficient amount of at least an initiator such as onium borate; (3) at least a photosensitizer ; and (4) a dental filler present in the composition in a proportion of at least 10 wt. % relative to the composition total weight. Said dental compositions are useful for making dental prostheses or for dental restoration.Type: GrantFiled: February 18, 2004Date of Patent: July 24, 2007Assignee: Rhodia ChimieInventor: Jean-Marc Frances
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Patent number: 7193706Abstract: This invention provides a method for screening large numbers of individual cells or colonies of cells using scanning microscopy coupled with fluorescence lifetime measurement and analysis, using time-correlated single photon counting. This invention further provides an automated method for selecting cells that exhibit desired characteristics. The method uses the scanning microscope system to focus a laser beam onto a surface upon which cells are immobilized on the timescale of the procedure. The cells that are illuminated in this way are killed or their growth is inhibited. The focused laser beam is scanned across the surface and turned on and off during the scanning process such that only non-irradiated cells survive, resulting in a patterned cell growth This invention further provides a computer-controlled projection device, such as a micro-mirror array or a liquid crystal display system, which is sued to project an image onto the cells.Type: GrantFiled: August 2, 2001Date of Patent: March 20, 2007Assignee: Arizona Board of Regents, Acting on Behalf of Arizona State UniversityInventors: Neal W. T. Woodbury, Benjamin P. Bowen, Allan Scruggs
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Patent number: 7183333Abstract: Photoinitiated reactions especially in photopolymer technology, as well as photoinitiated colour forming reactions are achievable by applying a reactive substrate selected from a polymerisable and/or crosslinkable composition and a colour changing substance to a support, activating a latent photoinitiator applied with the reactive substance and subsequently exposing the reactive substrate with the resulting photoinitiator therein to photoreaction conditions wherein actinic radiation causes the substrate to undergo polymerisation and/or crosslinking or colour change respectively, the substrate being locally modified in its constitution as a result of its exposure to actinic radiation at least one stage of the method, so that the resulting polymerised and/or crosslinked composition or colour changed substance corresponds in its distribution on the support to the locations of the modification of the substrate.Type: GrantFiled: August 3, 2001Date of Patent: February 27, 2007Assignee: Lintfield LimitedInventor: Grant Bradley
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Patent number: 7122247Abstract: A radiation-curable fiber optic coating composition for an inner primary coating includes a coloring agent, preferably a dye or a dye precursor, compatible with the fiber of the fiber optic and capable of imparting a pre-selected color to the inner primary coating, or another coating. The coloring agent can be a reactive dye. Any of the dyes preferably is stabilized by a stabiliser in the colored coating layer, or, preferably, in a more exterior layer.Type: GrantFiled: July 31, 2003Date of Patent: October 17, 2006Assignee: DSM IP Assets B.V.Inventors: Lin Jibing, Montgomery I. Eva, Snowwhite E. Paul, Jr., Petisce R. James, Kotesky Anton
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Patent number: 7112616Abstract: A two-photon absorbing polymerizable composition contains at least a two-photon absorbing compound, a polymerization initiator and a polymerizable compound, the composition being photopolymerizable upon non-resonant two-photon absorption, wherein the two-photon absorbing compound is a methine dye containing a compound represented by the formula (1): wherein R1 to R5 each represents a hydrogen atom or a substituent and some of R1 to R4 may combine with each other to form a ring; n and m each independently represents an integer of 0 to 4, provided that n and m are not 0 at the same time; X1 and X2 each represents an aryl group, a heterocyclic group or a group represented by formula (2); R6 represents a hydrogen atom, an alkyl group, an alkenyl group, an aryl group or a heterocyclic group, and Z1 represents an atomic group for forming a 5- or 6-membered ring.Type: GrantFiled: March 19, 2004Date of Patent: September 26, 2006Assignee: Fuji Photo Film Co., Ltd.Inventors: Hiroo Takizawa, Masaharu Akiba, Takeharu Tani
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Patent number: 7109250Abstract: Compounds of the formula (I), in which E is O or S; and x is 0 or 1, A is cyclopentyl, cyclohexyl, naphthyl, biphenylyl, anthracyl or an O-, S- or N-containing 5- or 6-membered heterocyclic ring, where the mentioned radicals are unsubstituted or substituted by halogen, C1–C4alkyl or C1–C4alkoxy; or A is a group formula (II) R is C1–C24alkyl, unsubstituted or substituted, C2–C24alkyl which is interrupted once or more than once by nonconsecutive O, S or NR14 and which is unsubstituted or substituted, C2–C24alkenyl which is uninterrupted or interrupted once or more than once by nonconsecutive O, S or NR14 and which is unsubstituted or substituted, C5–C24cycloalkenyl which is uninterrupted or interrupted once or more than once by nonconsecutive O, S or NR14 and which is unsubstituted or substituted; C7–C24arylalkyl which is unsubstituted or substituted on the aryl group.Type: GrantFiled: November 13, 2002Date of Patent: September 19, 2006Assignee: Ciba Specialty Chemicals Corp.Inventors: Jean-Pierre Wolf, Gebhard Hug
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Patent number: 7091256Abstract: A reactive paint to be completely cured in air with binders that bear ethylenically-unsaturated groups, that can be cured by radical polymerization either thermally or both thermally and by UV light or high-energy radiation in a dual-cure method. The paint contains a combined initiator system consisting of thermal initiators and UV initiators and reactive oligomers that are formed from addition compounds of a reactant of formula (4) and a reactant of formula (5) In this formula, X=—CO—CH?CH2 or —CnHm or —CO—CnHm. —CnHm is an aliphatic residue with 1 to 3 C atoms, whereby 0, 1, 2 or 3 X substituents are formed by —CnHm, and Y is a hydrocarbon chain of 3 to 8 atoms that can also contain heteroatoms. Also provided is a method for curing by radical polymerization. The polymerization is first started thermally under air and then is continued either thermally or photoinitiated under air or protective gas, and a use in paint systems, especially in automobile manufacturing or as a binder.Type: GrantFiled: June 22, 2004Date of Patent: August 15, 2006Assignee: DaimlerChrysler AGInventors: Markus Bischof, Elisabeth Gemmler, Fritz Mezger, Thomas Raith, Christoph Ruechardt
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Patent number: 7091255Abstract: A method of multiphoton photosensitizing a photoreactive composition comprises irradiating the composition with light sufficient to cause simultaneous absorption of at least two photons, thereby inducing at least one acid- or radical-initiated chemical reaction where the composition is exposed to the light. The composition comprises: (a) at least one reactive species that is capable of undergoing such reaction; and (b) at least one multi-component, multiphoton photoinitiator system.Type: GrantFiled: October 13, 2004Date of Patent: August 15, 2006Assignee: 3M Innovative Properties CompanyInventor: Robert J. DeVoe
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Patent number: 7084182Abstract: A photopolymerization initiator comprising (A) an ?-diketone compound such as camphorquinone, (B1) an aliphatic amine compound such as triethanolamine or N-methyldiethanolamine, (B2) an aromatic amine compound such as ethyl p-dimethylaminobenzoate or N,N-dimethyl p-toluidine, and (C) a triazine compound substituted with a trihalomethyl group, such as 2,4,6-tris(trichloromethyl)-s-triazine or 2-phenyl-4,6-bis(trichloromethyl)-s-triazine. The photopolymerization initiator remains stable against the environmental light such as the indoor illumination light from a fluorescent lamp or the dental light illuminating the interior of the oral cavity, is excellently handled, is quickly cured by the irradiation with an intense light emitted from a light irradiator for polymerization, provides a cured body having excellent properties, can be stably preserved even at high temperatures, and is very useful as a dental composite resin.Type: GrantFiled: March 11, 2004Date of Patent: August 1, 2006Assignees: Tokuyama Corporation, Tokuyama Dental CorporationInventors: Tadashi Hara, Takeshi Suzuki, Rumiko Shimada, Hideki Kazama, Hironobu Akizumi, Mutsumi Kashimura
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Patent number: 7064152Abstract: Compositions are provided that include an electron donor and a sensitizing compound. More specifically, the electron donor is an arylsulfinate salt. Methods of polymerization are also provided that can be used to prepare polymeric material from a photopolymerizable composition that includes ethylenically unsaturated monomers and a photoinitiator system. The photoinitiator system includes an electron donor and a sensitizing compound.Type: GrantFiled: May 17, 2004Date of Patent: June 20, 2006Assignee: 3M Innovative Properties CompanyInventors: Rajdeep S. Kalgutkar, Michael C. Palazzotto
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Patent number: 7056959Abstract: A dye-containing curable composition contains at least an alkali soluble resin, a dye, and a photosensitive compound, the dye being a phthalocyanine compound represented by the following general formula (I): M-Pc-(Y)l ??General Formula (I) wherein M represents a metallic atom, a metallic oxide, a metallic chloride or a hydrogen atom; Pc represents a phthalocyanine skeleton; Y represents a fluorine-substituted alkoxy group; and l denotes an integer from 1 to 8.Type: GrantFiled: November 7, 2003Date of Patent: June 6, 2006Assignee: Fuji Photo Film Co., Ltd.Inventor: Nobuo Suzuki
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Patent number: 7008975Abstract: A light-curable resin composition includes an acrylate oligomer, an acrylate monomer having 4 or less functional groups, a photopolymerization initiator, a hardness enhancing agent represented by the formula(1), m-terphenyl represented by the formula(2) and a colloidal antistatic agent. The light-curable resin composition has a high antistatic property and a light transmittance, as well as a high hardness and a low shrinkage rate.Type: GrantFiled: September 29, 2004Date of Patent: March 7, 2006Assignee: Samsung Electronics Co., Ltd.Inventors: Do-hoon Chang, Myong-do Ro, Du-seop Yoon, In-sik Park
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Patent number: 6942955Abstract: A lithographic printing plate precursor is disclosed, which comprises an image-forming layer which contains a hydrophilic resin, an acid precursor and at least one component selected from fine particles containing a compound having a vinyloxy group and microcapsules containing a compound having a vinyloxy group, on a hydrophilic support, which can be development processed on a printing machine.Type: GrantFiled: June 15, 2004Date of Patent: September 13, 2005Assignee: Fuji Photo Film Co., Ltd.Inventor: Kazuo Maemoto
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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: 6905735Abstract: The present invention discloses an ultraviolet light curable paint composition and method for applying and making such a composition to a substrate. Suitable substrates include glass, metals, and various plastics such as polycarbonates. The disclosed composition does not contain any significant amount of volatile organic solvents that do not become incorporated in the coating or are released to ambient after curing.Type: GrantFiled: November 15, 2002Date of Patent: June 14, 2005Assignee: Allied PhotoChemical, Inc.Inventor: Roy C. Krohn
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Patent number: 6864040Abstract: The present invention relates to IR-sensitive compositions containing an initator system comprising: (a) at least one compound capable of absorbing IR radiation selected from triarylamine dyes, thiazolium dyes, indolium dyes, oxazolium dyes, cyanine dyes, polyaniline dyes, polypyrrole dyes, polythiophene dyes and phthalocyanine pigments (b) at least one compound capable of producing radicals selected from polyhaloalkyl-substituted compounds (c) at least one polycarboxylic acid represented by the following formula I wherein Y is selected from the group consisting of O, S and NR7, each of R4, R5 and R6 is independently selected from the group consisting of hydrogen, C1-C4 alkyl, aryl which is optionally substituted, —COOH and NR8CH2COOH, R7 is selected from the group consisting of hydrogen, C1-C6 alkyl, —CH2CH2OH, and C1-C5 alkyl substituted with -COOH, R8 is selected from the group consisting of —CH2COOH, —CH2OH and —(CH2)2N(CH2COOH)2 and r is 0, 1, 2 or 3 with the proviso that at least one of R4, R5, RType: GrantFiled: April 11, 2001Date of Patent: March 8, 2005Assignee: Kodak Polychrome Graphics LLCInventors: Ursula Müller, Tobias Wittig, Hans-Joachim Timpe
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Patent number: 6861201Abstract: Novel photopolymer compositions are disclosed which contain dyes that absorb strongly in the near infrared (near IR) region of the electromagnetic spectrum. These dyes are useful as photosensitizers for initiating a variety of photoimaging and photopolymerization reactions. Imaging Media are disclosed herein which are sensitive in the near infrared (near IR) region of the electromagnetic spectrum and which can initiate polymerization of ethylenically unsaturated monomer components in negative-acting photopolymer systems and/or which can initiate conversion of a leuco dye to its corresponding colored dye form. These imaging media comprise either a near IR dye photochemical sensitizer, a hexaarylbiimidazole (HABI) photoinitiator, a chain transfer agent, and a photopolymerizable material or a near IR dye photochemical sensitizer, a hexaarylbiimidazole (HABI) photoinitiator, and a leuco dye.Type: GrantFiled: April 7, 2004Date of Patent: March 1, 2005Assignee: E. I. du Pont de Nemours and CompanyInventors: Gregory C. Weed, Dietrich M. Fabricius
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Patent number: 6855745Abstract: Aliphatic maleimides and methods using the same are disclosed. Polymerization of compositions which include the compounds of the invention may be activated by irradiating the composition with radiation.Type: GrantFiled: October 8, 2001Date of Patent: February 15, 2005Assignees: Albemarle Corporation, University of Southern MississippiInventors: Charles E. Hoyle, Shan Christopher Clark, E. Sonny Jönsson
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Patent number: RE40847Abstract: Radiation curable ink compositions for ink jet contain radiation curable monomers containing vinylether and acrylate functions.Type: GrantFiled: March 19, 2003Date of Patent: July 14, 2009Assignee: Agfa-GevaertInventors: Luc Vanmaele, Emiel Verdonck