Containing Nitrogen Patents (Class 522/39)
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Patent number: 6906113Abstract: Compounds of formula Ia, Ib and Ic, (Ic), in which R, R1 and R2 are e.g. phenyl, naphthyl, anthracyl, phenanthryl or a heterocyclic radical, are suitable as photoinitiators which accumulate at the surface of coatings.Type: GrantFiled: August 7, 2001Date of Patent: June 14, 2005Assignee: Ciba Specialty Chemicals Corp.Inventors: Gisèle Baudin, Tunja Jung
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Patent number: 6867244Abstract: Photoactivatable coating composition comprising at least one photoinitiator and a base-catalysed polymerisable or curable organic material comprising at least one polyisocyanate and at least one compound containing isocyanate reactive groups, wherein the isocyanate reactive groups comprise at least one thiol group and the photoinitiator is a photolatent base. Preference is given to a coating composition wherein the photolatent base is selected from the group of N-substituted 4-(ortho-nitrophenyl)dihydropyridine, a quaternary organo-boron photoinitiator, and an ?-amino acetophenone. The composition additionally may comprise an organic acid, a metal complex and/or a metal salt as a cocatalyst and/or a sensitiser selected from the group of thioxanthones, oxazines, rhodamines, and preferably from the group of benzophenone and derivatives thereof.Type: GrantFiled: April 25, 2003Date of Patent: March 15, 2005Assignee: Akzo Nobel N.V.Inventors: Huig Klinkenberg, Josephus Christiaan Van Oorschot
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Patent number: 6860600Abstract: The disclosure relates to the provision of a lens having front and back optical surfaces bound by a peripheral edge, wherein the peripheral edge is coated with an edge coating that strongly bonds to the edge but that only weakly bonds to the optical surface, and wherein the edge coating is durable. A method of coating and a composition are also disclosed. The composition is preferably selected from a limited group of UV curable acrylates.Type: GrantFiled: September 28, 2001Date of Patent: March 1, 2005Assignee: Sola International Holdings, Ltd.Inventor: Fang Chen
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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: 6841587Abstract: Provided are a UV-curable pressure-sensitive adhesive composition comprising a photoinitiator which has a molar absorptivity at 365 nm of at least 1,000 mol?1·cm?1 and the maximum absorption wavelength of at least 420 nm on a long wavelength side; and an adhesive sheet having a layer of the composition disposed over a photo-transmitting base film. The pressure-sensitive adhesive sheet according to the invention can be cured even by exposure to ultraviolet rays at a low intensity or for short time so that it can contribute to energy saving and productivity improvement as a sheet for processing, fixation or surface protection of a semiconductor wafer.Type: GrantFiled: July 21, 2003Date of Patent: January 11, 2005Assignee: Nitto Denko CorporationInventor: Shouji Yamamoto
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Patent number: 6805917Abstract: The present invention discloses an ultraviolet light curable decorative metallic composition and method for making such a composition that may be used to produce a decorative metallic coating on a substrate. The composition comprises a novolac epoxy acrylate prepolymer, a photoinitiator and a metallic pigment. The disclosed composition does not contain any significant amount of volatile organic solvents.Type: GrantFiled: June 5, 2002Date of Patent: October 19, 2004Inventor: Roy C. Krohn
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Publication number: 20040198860Abstract: Method for the manufacture of a plastic film material suitable for implantation, by providing a pharmaceutically acceptable, flexible plastic carrier material with a layer of a photopolymerizable synthetic resin composition containing a photo-initiator, which is given a tack-reducing component. This component is chosen from polyurethane, an initiator or a mixture thereof. The initiator preferably generates a curing accelerator after activation. The invention also relates to an expandable intravascular stent obtained using this material.Type: ApplicationFiled: April 28, 2004Publication date: October 7, 2004Inventors: Hendrik Glastra, Paul de Kleijn
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Patent number: 6790874Abstract: The invention relates to thermoplastic polyolefin compositions having enhanced surface durability and products thereof which include a thermoplastic polyolefin base component at least one radiation-crosslinkable component present in an amount sufficient to enhance the surface durability of the thermoplastic polyolefin component when radiation-cured and at least one photoinitiator present in an amount sufficient to initiate crosslinking of the radiation-crosslinkable component upon exposure of the thermoplastic polyolefin composition to radiation.Type: GrantFiled: July 31, 2002Date of Patent: September 14, 2004Assignees: Solvay Engineered Polymers, Ciba Specialty Chemicals CorporationInventors: Edmund K. Lau, Satchit Srinivasan, Peter J. Perron, Peter S. Solera, Anthony DeBellis, Chia-Hu Chang, Gerald Capocci, Joseph Puglisi, Douglas Horsey
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Patent number: 6776934Abstract: A method for photopolymerizing a monomer mixture to form a lens involves photopolymerizing a mixture of lens-forming monomers that includes an initiator of the formula: wherein: Ar represents an aromatic radical; Ra represents a secondary amino radical; Rb represents an ethylenically unsaturated radical or an aromatic radical; and Rc represents a secondary amino radical.Type: GrantFiled: November 2, 2001Date of Patent: August 17, 2004Assignee: Bausch & Lomb IncorporatedInventor: Yu-Chin Lai
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Patent number: 6770685Abstract: When a resin for manufacturing ultraviolet or electron ray curable optical fiber ribbon is prepared by properly mixing a photopolymerizable urethane acrylate oligomer containing polydimethylsiloxane, monomer, photoinitiator, leveling/defoaming agent, and antioxidant, optical loss caused by bending due to surface friction in the stacking process during ribbon bonding can be minimized by increasing tensile strength and surface slipping characteristics and by minimizing the shrinkage of resin when the it is cured.Type: GrantFiled: October 17, 2000Date of Patent: August 3, 2004Assignee: SSCP Co., Ltd.Inventors: Se-Lee Chang, Jung-Hyun Oh, Woo-Jeong Oh, Ki-Sung Jung
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Patent number: 6693141Abstract: The invention relates to the use of surface-active photoinitiators of formula I the units being arranged randomly or in blocks, and wherein n is a number from 1 to 1000; m is a number from 0 to 100; p is a number from 0 to 10,000; x is the number 1, or, when n is 1, x may also be the number 2; A1 and A2 are, for example, C1-C18alkyl; or A1 and A2 together are a single bond; R1, R2 and R3 are, for example, each independently of the others C1-C18alkyl, phenyl or C5-C8cycloalkyl; R4 is, for example, unsubstituted or substituted C1-C18alkyl, unsubstituted or substituted phenyl or C5-C8cycloalkyl; IN, when x is 1, is a radical of formula when x is 2, is a radical of formula R13 and R14 are, for example, each independently of the other C1-C12alkyl; Y is, for example, —(CH2)a—O—; X is OR15 or N(R16)(R17); R15 is, for example, hydrogen or C1-C4alkyl; R16 and R17 are, for example, hydrogen or C1-C12alkyl; X1 has, for example, one of the meanings oType: GrantFiled: December 21, 2001Date of Patent: February 17, 2004Assignee: Ciba Specialty Chemicals CorporationInventors: Gisèle Baudin, Tunja Jung
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Publication number: 20040019127Abstract: Provided are a UV-curable pressure-sensitive adhesive composition comprising a photoinitiator which has a molar absorptivity at 365 nm of at least 1,000 mol−1·cm−1 and the maximum absorption wavelength of at least 420 nm on a long wavelength side; and an adhesive sheet having a layer of the composition disposed over a photo-transmitting base film. The pressure-sensitive adhesive sheet according to the invention can be cured even by exposure to ultraviolet rays at a low intensity or for short time so that it can contribute to energy saving and productivity improvement as a sheet for processing, fixation or surface protection of a semiconductor wafer.Type: ApplicationFiled: July 21, 2003Publication date: January 29, 2004Applicant: NITTO DENKO CORPORATIONInventor: Shouji Yamamoto
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Patent number: 6673851Abstract: Self-photoinitiating liquid oligomeric compositions having tertiary amine groups are provided by Michael Addition reaction of: A) an uncrosslinked Michael Addition reaction product of a multifunctional acrylate acceptor and a Michael Donor; and B) a primary and/or secondary amine. The compositions can be crosslinked to make coatings, laminates and adhesives.Type: GrantFiled: October 12, 2001Date of Patent: January 6, 2004Assignee: Ashland Inc.Inventors: Thomas Michael Moy, R. Scott Harvey
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Patent number: 6652970Abstract: The present invention is directed toward compositions that are chemically different after application to a substrate as compared to the composition prior to its application. A method of the invention comprises a method of transitioning a crosslinked polymer composition from a first chemical state to a second chemical state. Advantageously, compositions of the invention are relatively stable after transformation to their altered, or second, chemical state.Type: GrantFiled: July 7, 2000Date of Patent: November 25, 2003Assignee: 3M Innovative Properties CompanyInventors: Albert I. Everaerts, Charles M. Leir, Roger A. Mader, Peter A. Stark
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Publication number: 20030212162Abstract: A polymerizable composition comprising a polymerization initiator (A) represented by the formula (1) and a radical-polymerizable compound (B):Type: ApplicationFiled: November 22, 2002Publication date: November 13, 2003Inventors: Takahiko Uesugi, Masashi Arishima, Tadao Yagi
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Patent number: 6627677Abstract: A water-based, flash-curable ink jet ink that is capable of adhering to plastic substrates, such as flexible polyvinyl chloride, the ink comprising: a) at least one water-dispersible or water-soluble acrylate polymerizable material; b) at least one polymerizable material that is capable of softening the substrate in part or in full and is resistant to hydrolysis; c) at least one colorant such as a pigment, a dye or both a pigment and a dye; and d) at least one UV photoinitiator.Type: GrantFiled: June 26, 2001Date of Patent: September 30, 2003Assignee: Sericol LimitedInventor: Brian Smith
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Publication number: 20030175621Abstract: The present invention relates to a paste composition, including a bonding agent charged with a metallic powder, to be used in a prototyping procedure, a procedure for obtaining metallic products from said composition, and a metallic product obtained from said procedure.Type: ApplicationFiled: January 17, 2003Publication date: September 18, 2003Inventor: Catherine Hinczewski
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Patent number: 6596445Abstract: Oximeester compounds of the formulae I, II, III and IV wherein R1 is phenyl, C1-C20alkyl or C2-C20alkyl optionally interrupted by —O—, C2-C20alkanoyl or benzoyl, or R1 is C2-C12alkoxycarbonyl or phenoxycarbonyl; R1′ is C2-C12alkoxycarbonyl, or R1′ is phenoxycarbonyl, or R1′ is —CONR10R11 or CN; R2 is C2-C12alkanoyl, C4-C6alkenoyl, benzoyl, C2-C6alkoxycarbonyl or phenoxycarbonyl; R3, R4, R5, R6 and R7 are hydrogen, halogen, C1-C12alkyl, cyclopentyl, cyclohexyl, phenyl, benzyl, benzoyl, C2-C12alkanoyl, C2-C12alkoxycarbonyl, phenoxycarbonyl or a group OR8, SR9, SOR9, SO2R9 or NR10R11; R4′, R5′ and R6′ are hydrogen, halogen, C1-C12alkyl, cyclopentyl, cyclohexyl, phenyl, benzyl, benzoyl, C2-C12-alkanoyl, C2-C12alkoxycarbonyl, phenoxycarbonyl, or are a group OR8, SR9, SOR9, SO2R9, NR10R11; provided that at least one of R3, R4, R5, R6, R7, R′4, R′5 and R′6 is OR8, SR9 or NR10R11; R8, R9, R10 and R11 are for example hydrogen, CType: GrantFiled: June 23, 1999Date of Patent: July 22, 2003Assignee: Ciba Specialty Chemicals CorporationInventors: Akira Matsumoto, Hidetaka Oka, Masaki Ohwa, Hisatoshi Kura, Jean-Luc Birbaum, Kurt Dietliker
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Publication number: 20030125409Abstract: A method for photopolymerizing a monomer mixture to form a lens involves photopolymerizing a mixture of lens-forming monomers that includes an initiator of the formula: 1Type: ApplicationFiled: November 2, 2001Publication date: July 3, 2003Inventor: Yu-Chin Lai
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Patent number: 6583196Abstract: A high refractive index composition comprising a core resin mixture comprising a first compound of formula (I), a second compound of a poly(ethylene glycol) di(meth)acrylate of formula (II) and a reactive diluent to provide enhanced impact resistance and refractive index.Type: GrantFiled: December 27, 2000Date of Patent: June 24, 2003Assignee: Rodenstock North America, Inc.Inventor: Qiang Zheng
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Patent number: 6579913Abstract: Photoactivatable coating composition comprising at least one photoinitiator and a base-catalysed polymerisable or curable organic material comprising at least one polyisocyanate and at least one compound containing isocyanate reactive groups, wherein the isocyanate reactive groups comprise at least one thiol group and the photoinitiator is a photolatent base. Preference is given to a coating composition wherein the photolatent base is selected from the group of N-substituted 4-(ortho-nitrophenyl) dihydropyridine, a quaternary organo-boron photoinitiator, and an &agr;-amino acetophenone. The composition additionally may comprise an organic acid, a metal complex and/or a metal salt as a cocatalyst and/or a sensitiser selected from the group of thioxanthones, oxazines, rhodamines, and preferably from the group of benzo-phenone and derivatives thereof.Type: GrantFiled: May 24, 2001Date of Patent: June 17, 2003Assignee: Akzo Nobel N.V.Inventors: Huig Klinkenberg, Josephus Christiaan Van Oorschot
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Patent number: 6555592Abstract: A photothermosetting composition is described which contains a base resin (A), a photopolymerizable photomonomer or photooligomer (B), a photoinitiator (C), an epoxide compound containing at least two epoxy groups (D), and an organic solvent. The base resin (A) an epoxide compound (a) containing at least two epoxy groups, an unsaturated monobasic acid (b), a saturated or unsaturated dibasic acid (c), and a saturated or unsaturated acid anhydride (d) according to the ratio of (a)/(b)/(c) of 1:0.90˜0.95:0.025˜0.050 and the acid value of the base resin is in the range of 40˜49 mg KOH/g. This photothermosetting component was coating on the substrate, and then dried by baking, exposed by light, developed, irradiated by ultraviolet light or heated, and cured to form a solder mask.Type: GrantFiled: February 27, 2001Date of Patent: April 29, 2003Assignee: Advance Materials CorporationInventors: Chao-Hui Tseng, Fu-Lung Chen
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Patent number: 6551761Abstract: This invention relates to &agr;-ammonium ketones, iminium ketones or amidinium ketones in the form of their tetraaryl- or triarylalkylborate salts which can be photochemically converted into amines, imines or amidines as well as to a process for their preparation. This invention also relates to base-polymerisable or crosslinkable compositions comprising these &agr;-ammonium ketones, iminium ketones or amidinium ketones in the form of their tetra- or triarylalkylborate salts, to a process for carrying out photochemically induced, base-catalysed reactions as well as to their use as photoinitiators for base-catalysed reactions.Type: GrantFiled: September 7, 2000Date of Patent: April 22, 2003Assignee: Ciba Specialty Chemical CorporationInventors: Véronique Hall-Goulle, Sean Colm Turner, Allan Francis Cunningham
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Publication number: 20030068439Abstract: This invention provides a transparent, paramagnetic polymer composition in which a polymer is complexed with sufficient rare earth ions, particularly ions selected from ions in the group of elements 64-69, to provide a polymer with a magnetic mass susceptibility greater than 20×10−6 emu/g measured at 298° K.Type: ApplicationFiled: January 16, 2002Publication date: April 10, 2003Inventors: David M. Dean, Charles J. Molnar
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Patent number: 6518326Abstract: The invention relates to open chain alkoxyamine compounds useful as polymerization regulators. The open chain alkoxyamine compounds are useful for the polymerization of ethylenically unsaturated monomers. The compounds of the present invention provide polymeric resin products having low polydispersity. The polymerization process proceeds with enhanced monomer to polymer conversion efficiency. In particular, this invention relates to stable free radical-mediated polymerization processes which provide homopolymers, random copolymer, block copolymers, multiblock copolymers, graft copolymers and the like, at enhanced rates of polymerization and enhanced monomer to polymer conversions.Type: GrantFiled: January 29, 2001Date of Patent: February 11, 2003Assignee: Ciba Specialty Chemicals CorporationInventors: Peter Nesvadba, Andreas Kramer, Marie-Odile Zink, Dario Lazzari
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Patent number: 6517910Abstract: In one aspect the invention provides an energy efficient polymerization method comprising irradiating a polymerizable composition and a photoinitiator with a source of essentially monochromatic radiation where the photoinitiator and the wavelength of the radiation source are selected such that the extinction coefficient of the photoinitiator at the peak wavelength of the source is greater than about 1000 M−1 cm−1 and such that the photoinitiator absorbs at least two percent of the actinic radiation incident on the coating. In another aspect the invention provides energy efficient methods of polymerizing polymerizable compositions and crosslinking crosslinkable compositions by irradiating the respective compositions with a low power source of essentially monochromatic radiation. The low power energy sources have an input power of less than about 10 W/cm.Type: GrantFiled: February 6, 2001Date of Patent: February 11, 2003Assignee: 3M Innovative Properties CompanyInventors: Robin E. Wright, George F. Vesley
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Patent number: 6495627Abstract: A conductive composition for a biological electrode is capable of reducing the impedance between the electrode and the skin. A conductive gel composition for a biological electrode which is capable of electrically and physically connecting a living body to an electrode element and is composed of at least the following components: (1) a radical-polymerizable unsaturated compound; (2) a moisturizer serving as a plasticizer and functioning to supplementing and promoting the physiological humidifying function of the horny layer; (3) a polymerization initiator; and (4) a crosslinking agent. This moisturizer serves also as a plasticizer and, furthermore, elevates the moisture content in the horny layer at the application of this composition. The above-mentioned composition may further contain a plasticizer selected from among polyhydric alcohols, amines and ethers.Type: GrantFiled: July 11, 1996Date of Patent: December 17, 2002Assignee: Nihon Kohden CorporationInventors: Shin Suda, Tohru Kurata
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Publication number: 20020183411Abstract: An optical fiber coating material is provided in the form of an electron beam-curable resin composition comprising a polyurethane having at least two ethylenically unsaturated groups, a reactive diluent, and a compound having both nitrogen and sulfur atoms. The optical fiber coating material is sufficiently EB curable to minimize the dependency of gel fraction and Young's modulus on an EB dose and to comply with the high-speed drawing of optical fiber. The coating material is cured with EB under specific conditions to achieve a sufficient degree of cure and uniform properties without adversely affecting the transmission loss of the optical fiber.Type: ApplicationFiled: April 25, 2002Publication date: December 5, 2002Inventors: Toshio Ohba, Nobuo Kawada, Masaya Ueno, Masatoshi Asano, Shigeru Konishi
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Patent number: 6488882Abstract: The invention relates to thermoplastic polyolefin compositions having enhanced surface durability and products thereof which include a thermoplastic polyolefin base component at least one radiation-crosslinkable component present in an amount sufficient to enhance the surface durability of the thermoplastic polyolefin component when radiation-cured and at least one photoinitiator present in an amount sufficient to initiate crosslinking of the radiation-crosslinkable component upon exposure of the thermoplastic polyolefin composition to radiation.Type: GrantFiled: December 11, 2000Date of Patent: December 3, 2002Assignees: Solvay Engineered Polymers, Ciba Specialty Chemicals CorporationInventors: Edmund K. Lau, Satchit Srinivasan, Peter J. Perron, Peter S. Solera, Anthony DeBellis, Chia-Hu Chang, Gerald Capocci, Joseph Puglisi, Douglas Horsey
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Patent number: 6485886Abstract: New oxime derivatives of formula (I) or. (II), wherein m is 0 or 1; R1 inter alia is phenyl, naphthyl, anthracyl, phenanthryl or a heteroaryl radical; R′1 is for example C2-C12alkylene, phenylene, naphthylene; R2 is CN; R3 is C2-C6haloalkanoyl, halobenzoyl, a phosphoryl or an organosilyl group; R4, R5, R10 and R11 inter alia are hydrogen, C1-C6alkyl, C1-C6alkoxy; R6 inter alia is hydrogen phenyl, C1-C12alkyl; R7 and R8 inter alia are hydrogen, C1-C12alkyl; or R7 and R8, together with the nitrogen atom to which they are bonded, form a 5-, 6 or 7-membered ring; R9 is for example C1-C12alkyl; and A inter alia is S, O, NR7a; are useful as latent acids, especially in photoresist applications.Type: GrantFiled: April 24, 2001Date of Patent: November 26, 2002Assignee: Ciba Specialty Chemicals CorporationInventors: Hitoshi Yamato, Toshikage Asakura, Jean-Luc Birbaum, Kurt Dietliker
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Patent number: 6482869Abstract: An adhesive useful in making composites includes two components A and B. Component A includes at least one polymer having a molecular weight (Mn) of at least 800 that has at least one functional group polymerizable by irradiation with UV light or with electron beams and has at least one functional group capable of reacting with a compound having at least one acidic hydrogen atom. Component B includes at least one compound having a molecular weight (Mn) of from about 100 to about 8000 which has at least two functional groups polymerizable by irradiation with UV light or with electron beams.Type: GrantFiled: August 10, 2000Date of Patent: November 19, 2002Assignee: Henkel Kommanditgesellschaft aut AktienInventors: Gerd Bolte, Andreas Ferencz, Thomas Huver
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Patent number: 6458864Abstract: Compounds with chain transfer groups of the formula I, II, III and IV wherein a is 1 or 2; Ar and Ar1 inter alia are phenyl; Ar2 inter alia is phenylene, these groups being unsubstituted or substituted; X is a direct bond, —O—, —S— or —N(R6)—; Y inter alia is hydrogen or C1-C12alkyl; M1 is —NR3R4 or —OH, or M1 is Ar when R1 and R2 are alkoxy, or aryloxy; R1 and R2 independently of one another e.g. are C1-C8alkyl; R3 and R4 for example are C1-C12alkyl, or together are C3-C7alkylene; R5 inter alia is C1-C6alkylene or a direct bond; R6 is for example hydrogen; and Z is a divalent radical, provided that at least one of the radicals Ar, Ar1, Ar2, R1, R2, R3, R4, R5 or Y is substituted by SH groups; are suitable for the thermal preparation of macrophotoinitiators which are polymerized photochemically to give block-copolymers.Type: GrantFiled: November 27, 2000Date of Patent: October 1, 2002Assignee: Ciba Specialty Chemicals CorporationInventors: Toshikage Asakura, Masaki Ohwa, Hitoshi Yamato, Asako Ito
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Patent number: 6432616Abstract: The present invention provides a water soluble polymer which is prepared by the following steps. First, a carboxyl group-containing polymer is reacted with an alkaline reagent so that a portion of the carboxyl groups are reacted in an amount sufficient to make the polymer water soluble. Then, the polymer obtained is reacted with an epoxide containing unsaturated bonds and/or heteroatoms so that 1 to 100 mole percent of the remaining carboxyl groups of the polymer are reacted with the epoxide to form ester groups via a ring-opening reaction of epoxides, wherein the heteroatom can be silicon, nitrogen, phosphorus or sulfur. The water soluble polymer of the present invention can be used as a photosensitive resin. When the photoresist composition is used for preparing printed ciruit boards, it exhibits high photosensitivity, good water dispersability, storage stability, and good adhesion to copper. In addition, the problem of sticking to the mask can be prevented.Type: GrantFiled: August 7, 2000Date of Patent: August 13, 2002Assignee: Industrial Technology Research InstituteInventors: Tsing-Tang Song, Shung-Jim Yang, Hsiu-Mei Chen, Yi-Hua Liu
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Patent number: 6369123Abstract: Radiation-crosslinkable elastomeric compositions containing: (a) an elastomeric polymer containing abstractable hydrogen atoms in an amount sufficient to enable the elastomeric polymer to undergo crosslinking in the presence of a suitable radiation-activatable crosslinking agent; and (b) a radiation-activatable crosslinking agent of the formula: wherein: X represents CH3—; phenyl; or substituted-phenyl; or substituted-phenyl with the proviso that any substituents on the substituted-phenyl do not interfere with the light-absorbing capacity of the radiation-activatable crosslinking agent and do not promote intramolecular hydrogen abstraction of the radiation activatable crosslinking agent; W represents —O—, —NH—, or —S—; Z represents an organic spacer selected from the group consisting of aliphatic, aromatic, aralkyl, heteroaromatic, and cycloaliphatic groups free of esters, amides, ketones, urethanes, and also free of ethers, thiols, allylic grouType: GrantFiled: August 14, 1995Date of Patent: April 9, 2002Assignee: 3M Innovative Properties CompanyInventors: Peter A. Stark, Edward G. Stewart, Albert I. Everaerts
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Patent number: 6355702Abstract: Compounds containing unsaturated aliphatic moieties which are linked to each other by a tertiary oxycarbonyl containing acyclic moiety are basis for compositions which are cured to polymer networks which are thermally decomposable to provide residue which can be dissolved to allow repair of inoperative assemblies by replacement of inoperative components or recovery or recycling of operative elements which are affixed in assemblies by the cured compositions.Type: GrantFiled: February 2, 2000Date of Patent: March 12, 2002Assignee: Cornell Research Foundation, Inc.Inventors: Christopher K. Ober, Kenji Ogino
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Publication number: 20020009552Abstract: To provide a method for repairing a coated surface of a vehicle, using an ultraviolet curing resin having excellent quick-drying property, and giving a good finish in a shortened working time, a method for repairing the damage on a coated surface of a vehicle being a depression and/or a depletion of a coating film, which is characterized by comprising the following steps a) to c):Type: ApplicationFiled: August 23, 2001Publication date: January 24, 2002Applicant: Dukeplanning & Co., Inc.Inventor: Makoto Ueno
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Patent number: 6339112Abstract: The present invention relates to radiation curable compositions comprising at least one metallocene polyolefin. The radiation curable compositions are useful for a variety of applications, particularly as coatings and adhesives. The radiation curable composition may comprise a single metallocene polyolefin, or blend thereof. The ultraviolet curable compositions further comprise at least one photoinitiator and/or at least one photoinduced coupling agent. For pressure sensitive adhesive applications, the radiation curable composition also preferably comprises other ingredients such as a tackifying resins and plasticizers.Type: GrantFiled: November 13, 1998Date of Patent: January 15, 2002Assignee: H.B. Fuller Licensing & Financing Inc.Inventors: Thomas F. Kauffman, John P. Baetzold, Margarita Acevedo
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Patent number: 6326414Abstract: An ultraviolet-curable adhesive for bonding optical disks, which comprises (A) a radical-polymerizable vinyl compound, (B) an &agr;-hydroxyalkylphenone compound as a photopolymerization initiator, and (C) 2-methyl-1-[4-(methylthio)phenyl]-2-morpholino-propane-1-one, and which can provide optical disk products which are small in warping of disks, retain sufficient performances even under high temperature and high humidity and have a good appearance.Type: GrantFiled: February 29, 2000Date of Patent: December 4, 2001Assignee: Nagase Chemtex CorporationInventor: Takafumi Iida
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Patent number: 6326419Abstract: A water-based, flash-curable ink jet ink that is capable of adhering to plastic substrates such as flexible polyvinyl chloride, the ink comprising: a) at least one water-dispersible or water-soluble acrylate polymerizable material; b) at least one polymerizable material that is capable of softening the substrate in part or in fill and is resistant to hydrolysis; c) at least one colorant such as a pigment, a dye, or both a pigment and a dye; and d) at least one UV photoinitiator.Type: GrantFiled: January 18, 2000Date of Patent: December 4, 2001Assignee: Sericol LimitedInventor: Brian Smith
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Publication number: 20010037037Abstract: The invention relates to the use of oximesulfonic acid esters of formula I 1Type: ApplicationFiled: January 8, 2001Publication date: November 1, 2001Inventors: Kurt Dietliker, Martin Kunz
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Patent number: 6309585Abstract: A high refractive index composition comprising a core resin mixture comprising a mixture of ethoxylated bisphenol A di(meth)acrylates and/or their derivatives having variable degrees of ethoxylation to provide enhanced impact resistance and refractive index.Type: GrantFiled: April 23, 1999Date of Patent: October 30, 2001Assignee: Rodenstock North America, Inc.Inventor: Qiang Zheng
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Publication number: 20010023264Abstract: Provided are a UV-curable pressure-sensitive adhesive composition comprising a photoinitiator which has a molar absorptivity at 365 nm of at least 1,000 mol−1·cm−1 and the maximum absorption wavelength of at least 420 nm on a long wavelength side; and an adhesive sheet having a layer of the composition disposed over a photo-transmitting base film. The pressure-sensitive adhesive sheet according to the invention can be cured even by exposure to ultraviolet rays at a low intensity or for short time so that it can contribute to energy saving and productivity improvement as a sheet for processing, fixation or surface protection of a semiconductor wafer.Type: ApplicationFiled: February 27, 2001Publication date: September 20, 2001Inventor: Shouji Yamamoto
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Patent number: 6291543Abstract: A surfacially ultraviolet radiation-crosslinked article formed of a homogeneous composition including an elastoplastic material, a cross-linker component that is cross-linkable by free-radical polymerization, and a free-radical source material generating free radicals in exposure to ultraviolet radiation, wherein the elastoplastic material is surfacially cross-linked by exposure to ultraviolet radiation, wherein the sub-surface bulk volume of the article is non-cross-linked, and the article is resiliently deformable from and resiliently recoverable to a shape of the article when it was exposed to ultraviolet radiation for surfacial cross-linking thereof. The article is particularly amenable to embodiment as a catheter, or other similar medical device for cardiovascular or other medical procedures.Type: GrantFiled: May 24, 2000Date of Patent: September 18, 2001Assignee: Polyzen, Inc.Inventor: Tilak M. Shah
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Patent number: 6284185Abstract: An ultraviolet-curable adhesive composition comprising a photopolymerization initiator whose molar absorption coefficient at a wavelength of 360-450 nm is at least 400 and an ultraviolet-curable compound. The adhesive composition of this invention can bond substrates which show transmittances of 0.01-20% to all of energy beams of a wavelength of 280-380 nm, to one another such as base boards for an optical disk.Type: GrantFiled: March 9, 2000Date of Patent: September 4, 2001Assignee: Nippon Kayaku Kabushiki KaishaInventors: Kiyohisa Tokuda, Kazuhiko Ishii
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Patent number: 6277897Abstract: The present invention is directed to new, energy-efficient photoinitiators in the form of &agr;-amino enol ether compounds. The present invention is also directed to a method of generating reactive species, which includes exposing one or more photoinitiators to radiation to form one or more reactive species. Also described are methods of polymerizing unsaturated monomers, methods of curing an unsaturated oligomer/monomer mixture, and methods of laminating using the photoinitiators of the present invention.Type: GrantFiled: June 3, 1999Date of Patent: August 21, 2001Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Ronald Sinclair Nohr, John Gavin MacDonald
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Patent number: 6224949Abstract: In one aspect the invention provides an energy efficient polymerization method comprising irradiating a polymerizable composition and a photoinitiator with a source of essentially monochromatic radiation where the photoinitiator and the wavelength of the radiation source are selected such that the extinction coefficient of the photoinitiator at the peak wavelength of the source is greater than about 1000 M−1 cm−1 and such that the photoinitiator absorbs at least two percent of the actinic radiation incident on the coating. In another aspect the invention provides energy efficient methods of polymerizing polymerizable compositions and crosslinking crosslinkable compositions by irradiating the respective compositions with a low power source of essentially monochromatic radiation. The low power energy sources have an input power of less than about 10 W/cm.Type: GrantFiled: June 11, 1998Date of Patent: May 1, 2001Assignee: 3M Innovative Properties CompanyInventors: Robin E. Wright, George F. Vesley
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Patent number: 6210517Abstract: A radiation curable precursor coating composition for the preparation of a non-blocking, heat activatable adhesive includes a curable acrylic material, a curable elastomeric material, and a hydrocarbon tackifier material having a softening temperature ranging from approximately 50° C. to approximately 200° C., wherein when the acrylic material and the elastomeric material are cured, the coating composition is non-blocking at room temperature, but when the coating composition is heated to a temperature above both the softening temperature of the hydrocarbon tackifier and the Tg of the coating composition, the coating composition becomes adhesive.Type: GrantFiled: April 13, 1999Date of Patent: April 3, 2001Assignee: Diversified Chemical Technologies, Inc.Inventors: Rajan Eadara, Mooil Chung, David Wen-Lung Chang, Weichen Chi
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Patent number: 6203143Abstract: Disclosed is a composition which comprises (a) a polymer containing at least some monomer repeat units with photosensitivity-imparting substituents which enable crosslinking or chain extension of the polymer upon exposure to actinic radiation, said polymer being of the formula wherein x is an integer of 0 or 1, A is one of several specified groups, such as B is one of several specified groups, such as or mixtures thereof, and n is an integer representing the number of repeating monomer units, wherein said photosensitivity-imparting substituents are hydroxyalkyl groups; (b) at least one member selected from the group consisting of photoinitiators and sensitizers; and (c) an optional solvent. Also disclosed are processes for preparing the above polymers and methods of preparing thermal ink jet printheads containing the above polymers.Type: GrantFiled: September 23, 1998Date of Patent: March 20, 2001Assignee: Xerox CorporationInventors: Ram S. Narang, Timothy J. Fuller
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Patent number: 6194123Abstract: Water coatable and water developable negative-acting color proofing single sheet and overlay systems are described. The water-soluble photosensitive color layer employed in each type of proofing construction includes a photopolymerizable polymer having a weight-average molecular weight between 5,000 and 100,000; an alkaline soluble resin having a weight-average molecular weight between 1,000 and 200,000 and an acid number between 50 and 300; and a water-soluble photoinitiator.Type: GrantFiled: May 12, 1999Date of Patent: February 27, 2001Assignee: Minnesota Mining and Manufacturing CompanyInventors: Gordon Christopher Smith, Hamid Barjesteh, James Alan Bonham
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Patent number: 6191182Abstract: A novel process for the preparation of compounds of formula I by aminolysis of a p-halophenyl alkyl ketone of formula II with a cyclic amine of formula III in water at a temperature of at least 130° C., in which formulae X is a halogen atom and R1, R2 and R3 are as claimed in claim 1, as well as the novel compounds of formula I and their use for the preparation of photoinitiators for the photopolymerisation of ethylenically unsaturated compounds.Type: GrantFiled: June 10, 1999Date of Patent: February 20, 2001Assignee: Ciba Specialty Chemcials CorporationInventors: Rinaldo Hüsler, Rudolf Schwabe, Reto Luisoli