1,2 Epoxy Patents (Class 522/170)
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Patent number: 6498200Abstract: A cationically polymerizable resin composition which comprises (A) a compound containing at least one ring selected from the group consisting of an oxirane ring and an oxetane ring; (B) an onium salt; (C) an organic peroxide; and (D) an alkaline filler except for a hydroxide.Type: GrantFiled: January 11, 2000Date of Patent: December 24, 2002Assignee: Namics CorporationInventors: Osamu Suzuki, Haruyuki Yoshii, Hisao Kondo, Kenichi Suzuki
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Publication number: 20020188033Abstract: A photo-curing ink composition comprises a photocation-polymerizable substance, a photocation polymerization initiator, and a surfactant having a functional group. The surfactant is selected and the amount thereof is adjusted so that the acid value per 100 g of the ink composition is not more than 150 mg KOH. The surfactant is selected and the amount thereof is adjusted so that the amine value per 100 g of the ink composition is not more than 23 mg KOH. The ink composition is excellent in dispersion performance, storage stability, and curing performance.Type: ApplicationFiled: March 15, 2002Publication date: December 12, 2002Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventor: Minobu Maeda
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Publication number: 20020182339Abstract: A radiation curable, flexible, paintable composition produced from epoxy compounds and one or more polyol(s) has enhanced durability, thick and thin film adhesion, resistance to mold growth and dimensional changes while reducing solvent emissions. The composition can reduce, if not eliminate, runs and drips during the thermal bake cycles which are associated with using conventional compositions in automotive applications.Type: ApplicationFiled: March 6, 2002Publication date: December 5, 2002Inventors: Donald W. Taylor, Todd W. Scrivens, Laurie Denise Lovshe, Jeffrey T. Pachl
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Patent number: 6489375Abstract: An Offset Lithographic Printing Process employing low VOC lithographic printing ink formulations containing monomeric diluents, curable by cationic polymerization in the presence of fountain solution and resin rheology modifiers compatible with cationic catalysts.Type: GrantFiled: September 20, 2001Date of Patent: December 3, 2002Assignee: Sun Chemical CorporationInventors: Edward Stone, Gordon Kotora, Mikhail Laksin, Subhankar Chatterjee, Bhalendra J. Patel
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Patent number: 6489374Abstract: The invention relates to &agr;-ammonium alkenes, iminium alkenes and amidinium alkenes in the form of their tetraaryl- or triaryl-alkylborate salts that can be converted photochemically into amines, imines or amidines, and to a process for the preparation thereof. The invention relates also to compositions polymerisable or crosslinkable under basic conditions comprising such &agr;-ammonium alkenes, iminium alkenes or amidinium alkenes in the form of their tetra- or tri-arylalkylborate salts, to a method of carrying out photochemically induced, base-catalysed reactions, and to the use of such compounds as photoinitiators for base-catalysed reactions.Type: GrantFiled: February 16, 2001Date of Patent: December 3, 2002Assignee: Ciba Specialty Chemicals CorporationInventors: Gisèle Baudin, Sean Colm Turner, Allan Francis Cunningham
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Patent number: 6482868Abstract: Accelerators that can be useful for an energy polymerizable composition comprising a cationically curable material; energy polymerizable -compositions comprising at least one cationically curable material and an initiation system therefor, the initiation system comprising at least one organometallic complex salt and at least one accelerator; and a method for curing the compositions. The cured compositions can provide useful articles. The invention also provides compositions of matter comprising an organometallic complex salt and at least one compound selected from the Class 1 and Class 2 compounds disclosed herein.Type: GrantFiled: June 26, 2000Date of Patent: November 19, 2002Assignee: 3M Innovative Properties CompanyInventors: Wayne Scott Mahoney, Peggy Sperl Willett
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Patent number: 6475701Abstract: There is provided an active energy beam curable composition, which is useful for forming a solder resist film for a printed wiring board, which can be developed through an ultraviolet exposure and a dilute alkali aqueous solution, and is excel lent in heat resistance, adhesivity and chemical resistance. There is also proposed a printed wiring board provided with a cured film of such an active energy beam curable composition. This composition is featured in that it comprises not only an active energy beam curable vinyl copolymer modified resin wherein an epoxy compound having an ethylenic unsaturated group is added to a copolymer comprising styrene, (metha)acrylic acid, and, as an optional component, (metha)acrylate; but also an active energy beam curable bisphenol type epoxyacrylate resin.Type: GrantFiled: February 12, 2001Date of Patent: November 5, 2002Assignee: Tamura Kaken CorporationInventors: Takao Ohno, Ken Ito, Ichiro Miura
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Patent number: 6468595Abstract: A thermally-stable cationic photoinitiator capable of flash vaporization under vacuum and temperature conditions of an available flash-evaporation chamber is selected. The photoinitiator is mixed with a cation-polymerizable monomer and/or oligomer of interest and the mixture is flash evaporated and condensed in conventional manner as a film on a cold substrate. The resulting vacuum-deposited, homogeneous layer is cured with a high-energy radiation source that causes the cationic photoinitiator to liberate acidic species that catalyze the crosslinking of the monomer/oligomer compounds in its deposited film form. As a result of the homogeneous, pinhole-free nature of the vacuum deposition process, the thin-film polymer product does not suffer from the disadvantages attendant to prior-art atmospheric processes for cationically-cured polymers.Type: GrantFiled: February 13, 2001Date of Patent: October 22, 2002Assignee: Sigma Technologies International, Inc.Inventors: Michael G. Mikhael, Angelo Yializis
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Patent number: 6465537Abstract: A photocurable composition is provided which can be produced and cured by both free-radical and cationic polymerization modes, which provides a sufficient length of open time to be bonded to an adherend, and which exhibts a good adhesive property. A photocurable composition containing a compound (A) having at least one free-radically polymerizable unsaturated bond in a molecule, a compound (B) having at least one epoxy group in a molecule, a free-radical polymerization catalyst (C), a cationic polymerization catalyst (D) and a compound (E) represented by the following formula (1).Type: GrantFiled: December 22, 2000Date of Patent: October 15, 2002Assignee: Sekisui Chemical Co., Ltd.Inventor: Hiroji Fukui
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Patent number: 6465540Abstract: An ultraviolet curable resin composition includes (A) an ultraviolet curable resin, (B) an epoxy compound having at least two epoxy groups in one molecule, (C) a photopolymerization initiator and (D) a diluent. The ultraviolet curable resin (A) is obtained by the steps of polymerizing an ethylenically unsaturated monomer component containing (a) an ethylenically unsaturated monomer having epoxy group and (b) a compound having at least two ethylenically unsaturated groups in one molecule to prepare a copolymer, reacting the copolymer with (c) an ethylenically unsaturated monomer having carboxyl group to prepare a chemical intermediate, and reacting the chemical intermediate with (d) one of saturated and unsaturated polybasic acid anhydrides. This resin composition will be preferably used to prepare a photo solder resist ink developable with diluted alkaline aqueous solution.Type: GrantFiled: March 14, 2000Date of Patent: October 15, 2002Assignee: Goo Chemical Co., Ltd.Inventors: Tatsuya Kubo, Masatoshi Fujimoto, Soichi Hashimoto
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Patent number: 6458865Abstract: Photopolymerizable compositions are provided which are the reaction products of a vinyl ether, a photoinitiator system comprising an iodonium salt, a visible light sensitizer, and an electron donor compound. These monomeric/oligomeric compositions may also include epoxides, polyols, spiroorthocarbonates. One embodiment of the present invention is a polymerizable composition comprised of a vinyl ether, a spiroorthocarbonate, and a photoinitiator system. Another embodiment of the present invention is a polymerizable composition comprised of a vinyl ether, an epoxide, a polyol, and a photoinitiator system. Still another embodiment of the present invention is a polymerizable composition comprised of a vinyl ether, an epoxide, a polyol, a spiroorthocarbonate, and a photoinitiator system. Still further, another embodiment of the present invention is certain novel spiroorthocarbonate compounds. Each of these novel spiroorthocarbonate compounds include at least one epoxy group as a substituent.Type: GrantFiled: January 15, 1999Date of Patent: October 1, 2002Assignees: Curators of the University of Missouri, 3M Innovative Properties CompanyInventors: Cecil C. Chappelow, Charles S. Pinzino, J. David Eick, Joel D. Oxman
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Method of manufacturing ink jet recording head and ink jet recording head manufactured by the method
Patent number: 6455112Abstract: A highly reliable ink jet recording head excellent in mechanical strength, weatherability, ink resistance, and adhesion to the substrate is provided. For its production, a cationically polymerized curing product of an epoxy resin having a structural unit expressed by the following formula (I) or (II), is used as a resin material which coats an ink flow path pattern formed from a dissoluble resin on the substrate.Type: GrantFiled: May 15, 2000Date of Patent: September 24, 2002Assignee: Canon Kabushiki KaishaInventors: Norio Ohkuma, Masashi Miyagawa, Hiroaki Toshima -
Publication number: 20020123537Abstract: Nonaqueous compositions comprising at least one product of the reaction betweenType: ApplicationFiled: October 15, 2001Publication date: September 5, 2002Inventors: Miguel A. Dones, Ramesh L. Narayan
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Patent number: 6441058Abstract: The present invention involves the use of powder coating methods to form coated abrasives. In one embodiment, the powder is in the form of a multiplicity of binder precursor particles comprising a radiation curable component. In other embodiments, the powder comprises at least one metal salt of a fatty acid and optionally an organic component that may be a thermoplastic macromolecule, a radiation curable component, and/or a thermally curable macromolecule. In either embodiment, the powder exists as a solid under the desired dry coating conditions, but is easily melted at relatively low temperatures and then solidified also at reasonably low processing temperatures. The principles of the present invention can be applied to form make coats, size coats, and/or supersize coats, as desired.Type: GrantFiled: January 16, 2001Date of Patent: August 27, 2002Assignee: 3M Innovative Properties CompanyInventors: Ernest L. Thurber, Eric G. Larson, Gregg D. Dahlke, Robert J. DeVoe, Alan R. Kirk, Mark R. Meierotto, Roy Stubbs
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Patent number: 6433035Abstract: Selectively colorable compositions and a method for forming selectively colored polymeric bodies using such compositions are disclosed. In accordance with the invention, a selectively colorable polymerizable composition comprising a leucobase color former is irradiated with light of a particular wavelength and specific intensity for a specified duration. Exposure to actinic radiation cures the composition and activates the color former. Exposure to higher dosages of actinic radiation can bleach the composition. The irradiation dosage can be varied to selectively color the polymeric body whereby the resultant color of any particular area depends on the exposure dose received at that location. By varying the dose, a polymeric body can be prepared having distinctly colored elements at specific locations.Type: GrantFiled: August 14, 2000Date of Patent: August 13, 2002Assignee: Spectra Group Limited, Inc.Inventors: Oleg V. Grinevich, Douglas C. Neckers
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Publication number: 20020106584Abstract: This invention discloses compositions adapted to produce, through solid imaging means, excellent quality objects having material properties that simulate the look and feel of polypropylene articles.Type: ApplicationFiled: September 10, 2001Publication date: August 8, 2002Inventors: John A. Lawton, Chander P. Chawla
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Patent number: 6423865Abstract: The invention relates to compounds with the general formula Y1—A1—M1—A2—Y2 wherein Y1 and Y2 are different from each other and Y1 is an acrylate or methacrylate residue and Y2 is a vinyl ether, epoxy, or azide residue, A1 and A2 are identical or different residues with the general formula CnH2n in which n is a whole number from 0 to 20 and one or more methylene groups can be replaced by oxygen atoms, and M1 has the general formula —R1—X1—R2—X2—R3—X3—R4— wherein R1, R2, R3, and R4 are identical or different doubly bonded residues from the group —O—, —COO—, —CONH—, —CO—, —S—, —C≡C—, —CH═CH—, —CH═N—, —CH2—, —N═N—, and —N═N(O)—, and R2—X2—R3 can also be a C—C bond, and X1, X2, and X3 are identical or different residues from the group 1,4-phenylene, 1,4-cyclohexylenType: GrantFiled: March 1, 2000Date of Patent: July 23, 2002Assignee: DaimlerChrysler AGInventors: Peter Strohriegl, Katja Strelzyk, Andreas Stohr, Petra Grundig, Michael Gailberger, Fritz Dannenhauer, Anne Barth
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Publication number: 20020094491Abstract: An epoxy based resin which exhibits good laser ablation and good adherence to a substrate such a copper is provided by adding to the resin a dye or dyes having substantial energy absorption at the emission wave lengths of lasers used to laser ablate the resin. The resin with the dye or dyes included is coated onto a substrate and cured, or laminated onto a substrate in the cured condition. The required openings are formed in the cured film by laser ablation. This allows for the use of optimum techniques to be used to form micro vias.Type: ApplicationFiled: February 11, 2002Publication date: July 18, 2002Applicant: International Business Machines CorporationInventors: John S. Kresge, John M. Lauffer, David J. Russell
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Patent number: 6420450Abstract: Cationically hardening masses are described, which can be stored and handled as single-component masses and comprise at least one difunctional cationically polymerizable compound; a photo-initiator for the cationic hardening based upon diaryliodonium salts; at least one compound containing an hydroxyl group; a compound releasing radicals when heated and having a half-life of one hour at a temperature of less than 100° C.; a photo-initiator forming radicals or of a photo-sensitizing agent for diaryliodonium salts; and from 0 to 60 parts by mass of modifier. The compounds are used for bonding, casting, sealing and coating of substrates.Type: GrantFiled: June 14, 2000Date of Patent: July 16, 2002Assignee: Delo Industrieklebstoffe GmbH & Co. KGInventors: Dietmar Dengler, Michael Stumbeck
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Patent number: 6417243Abstract: In order to offer coatings with improved resistance to solvents which can be prepared by cationic polymerization under irradiation, the choice is made of a composition comprising at least one monomer, oligomer or polymer of general formula (I): in which: A1 is chosen from polyester blocks, polyurethane blocks, hydrocarbon-comprising backbones of mono- or polycarboxylic acid and addition products of a polycarboxylic acid and of a cycloaliphatic diepoxide, m is a number from 1 to 6, R1 is a cycloaliphatic group carrying a hydroxyl group situated in the a position with respect to the oxygen atom to which R1 is bonded, R2 is a second cycloaliphatic group carrying an oxirane group situated at the chain end, and B is chosen from one or more covalent bonds, an oxygen atom and linear, branched or cyclic hydrocarbon-comprising radicals.Type: GrantFiled: July 28, 2000Date of Patent: July 9, 2002Assignee: UCB, S.A.Inventors: Stephan Peeters, Kris Verschueren, Jean-Marie Loutz
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Patent number: 6413696Abstract: The present invention relates to novel resin compositions containing at least one solid or liquid actinic radiation-curable and cationically polymerizable organic substance, an actinic radiation-sensitive initiator for cationic polymerization, an actinic radiation-curable and radical-polymerizable organic substance and an actinic radiation-sensitive initiator for radical polymerization. The actinic radiation-curable and cationically polymerizable organic substance is at least one glycidylether of a polyhydric aliphatic, alicyclic or aromatic alcohol having at least three epoxy groups with epoxy equivalent weight between 90 and 800 grams per equivalent, at least one solid or liquid alicyclic epoxide with an epoxy equivalent weight between 90 and 330 grams per equivalent having at least two epoxy groups and monomer purity greater than about 90% by weight, or at least a solid or liquid epoxycresol novolac or epoxyphenol novolac having epoxy equivalent weight between 130 and 350, or mixtures thereof.Type: GrantFiled: June 22, 2000Date of Patent: July 2, 2002Assignee: Vantico Inc.Inventors: Thomas H. Pang, Anastasios P. Melisaris, Wang Renyi, John W. Fong
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Publication number: 20020081505Abstract: This invention discloses compositions adapted to produce, through solid imaging means, excellent quality objects having material properties that simulate the look and feel of polypropylene articles.Type: ApplicationFiled: January 4, 2002Publication date: June 27, 2002Applicant: DSM Desotech Inc.Inventors: John A. Lawton, Chander P. Chawla
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Patent number: 6387486Abstract: A pressure sensitive adhesive tape is provided having a silicone-free release layer, said tape comprising (1) at least one backing layer; (2) at least one pressure sensitive adhesive layer, and (3) at least one silicone-free release layer, said release layer comprising a crosslinked poly(alkylene oxide), said poly(alkylene oxide) being defined by the formula X1—(O—R)n—OX2 where X1 and X2 are terminal groups at least one of which permits crosslinking of said poly(alkylene oxide), n ranges from 1 to 200,000, R is a straight or branched alkylene group having the formula (CR1R2)m where m is an integer from 1 to 10 and R1 and R2 may independently be hydrogen and C1-3 alkyl.Type: GrantFiled: October 29, 1999Date of Patent: May 14, 2002Assignee: Adhesives Research, Inc.Inventors: Ranjit Malik, Julie Clonan
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Patent number: 6380277Abstract: The present invention relates to iodonium salts containing urethane groups of reduced crystallization tendency, to a process for their preparation, and to their use for the radiation curing of cationically curing compositions.Type: GrantFiled: September 19, 2000Date of Patent: April 30, 2002Assignee: Goldschmidt AGInventors: Sascha Oestreich, Andreas Weier, Stefanie Volkmer
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Patent number: 6379866Abstract: This invention discloses compositions adapted to produce, through solid imaging means, excellent quality objects having material properties that simulate the look and feel of polypropylene articles.Type: GrantFiled: March 31, 2000Date of Patent: April 30, 2002Assignee: DSM Desotech IncInventors: John A. Lawton, Chander P. Chawla
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Patent number: 6376638Abstract: The present invention relates to a novel latent curing agent which is capable of controlling the initiation reaction stage and is curable by heat and/or UV-light, an epoxy resin composition containing it, and a mixed epoxy composition (blend) having different functional groups. Particularly, it has been found that the epoxy resin composition consisting of an aliphatic type epoxy (CAE) and/or a difunctional bisphenol A type epoxy (DGEBA) has excellent mechanical properties.Type: GrantFiled: October 28, 1999Date of Patent: April 23, 2002Assignee: Korea Research Institute of Chemical TechnologyInventors: Jae-Rock Lee, Soo-Jin Park, Geun Ho Kwak
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Publication number: 20020045676Abstract: The invention relates to a process as described in claim of preparing a reflective film comprising a layer of a polymerized mesogenic material with helically twisted structure, wherein the helix axis is perpendicular to the film plane, and containing regions with varying helical pitch, to a reflective film obtainable by such a process, to the use of such a reflective film as reflective broadband or notch polarizer or as a multicoloured film or image in liquid crystal displays, as colour filter, in effect pigments, for decorative or security applications, and to a liquid crystal display comprising a liquid crystal cell and a reflective polarizer as described in the foregoing and the following, and optionally further comprising one or more compensaters or polarizers.Type: ApplicationFiled: July 13, 2001Publication date: April 18, 2002Inventors: David Coates, Mark Andrew Verrall
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Patent number: 6365643Abstract: The invention relates to modified cationic photoinitiators which exhibit a reduced tendency to crystallize, to a process for reducing the crystallization tendency of cationic photoinitiators, and to the use of the photoinitiators of the invention for the radiation curing of cationically curing compositions. The inventive cationic photoinitiators have the formula (IV): [R1—I—R2]+X− where R1 is a radical R2 is a radical in which Ar is a monovalent aromatic hydrocarbon radical and D being a radical and the remaining variables are defined herein.Type: GrantFiled: January 13, 2000Date of Patent: April 2, 2002Assignee: Th. Goldschmidt AGInventors: Sascha Oestreich, Wolfgang Müller
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Patent number: 6365323Abstract: Disclosed is a composition which comprises 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 interger 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 allyl ether groups, epoxy groups, or mixtures thereof. Also disclosed are a process for preparing a thermal ink jet printhead containing the aforementioned polymers and processes for preparing the aforementioned polymers.Type: GrantFiled: March 16, 1999Date of Patent: April 2, 2002Assignee: Xerox CorporationInventors: Ram S. Narang, Timothy J. Fuller
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Patent number: 6361923Abstract: An epoxy based resin which exhibits good laser ablation and good adherence to a substrate such a copper is provided by adding to the resin a dye or dyes having substantial energy absorption at the emission wave lengths of lasers used to laser ablate the resin. The resin with the dye or dyes included is coated onto a substrate and cured, or laminated onto a substrate in the cured condition. The required openings are formed in the cured film by laser ablation. This allows for the use of optimum techniques to be used to form micro vias.Type: GrantFiled: August 17, 1999Date of Patent: March 26, 2002Assignee: International Business Machines CorporationInventors: John S. Kresge, John M. Lauffer, David J. Russell
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Patent number: 6362248Abstract: A photochromic polymerizable composition comprising (a) a polyfunctional (meth)acrylate monomer, (b) at least one kind of chromene compound selected from the group consisting of three kinds of chromene compounds represented by particular structural formulas, and (c) a compound having at least one or more epoxy groups in the molecules. The photochromic polymerizable composition offers a photochromic material that exhibits little initial color and excellent photochromism resistance suited for use as lenses for spectacles.Type: GrantFiled: September 24, 1999Date of Patent: March 26, 2002Assignee: Tokuyama CorporationInventors: Tadashi Hara, Yuichiro Kawabata, Junji Momoda, Hironobu Nagoh
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Patent number: 6358354Abstract: The invention provides an adhesive formulation for tacking and holding a nozzle plate in alignment on a semiconductor chip for an ink jet pen of an ink jet printer. The adhesive formulation includes a multifunctional epoxy material, a difunctional epoxy material, a fumed silica viscosity control agent, an imidazole-based thermal initiator and a mixed aryl sulfonium salt photoinitiator. Use of the adhesive formulation enables a nozzle plate to be assembled to a semiconductor chip with while substantially maintaining critical alignment between the nozzle plate and semiconductor chip.Type: GrantFiled: July 5, 2000Date of Patent: March 19, 2002Assignee: Lexmark International, Inc.Inventor: Girish Shivaji Patil
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Publication number: 20020032249Abstract: A radiation curable composition contains an epoxy-functional silicone polymer, an iodonium photocatalyst and a non-fluorescing polycyclic aromatic compound containing at least one hydroxy, alkoxy or glycidyl ether substituent bonded to an aromatic carbon atom of the compound.Type: ApplicationFiled: July 18, 2001Publication date: March 14, 2002Applicant: GENERAL ELECTRIC COMPANYInventors: Richard PAUL Eckberg, Kesheng Feng, Douglas Neckers
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Publication number: 20020025991Abstract: Enhancement of the rates of cationic polymerizations initiated by onium salts has been achieved through the use of oligomeric and polymeric electron-transfer photosensitizers derived from a polymerizable compound substituted with a polynuclear aromatic group, including epoxides, oxetanes, and ethylenically unsaturated compounds. The polymerizable compound is substituted with residues derived from anthracene, naphthalene, perylene, pyrene, fluorene, carbazole, indole, benzocarbazole, acridone, phenothiazine, and thianthrene, particularly carbazole.Type: ApplicationFiled: April 4, 2001Publication date: February 28, 2002Inventor: James V. Crivello
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Patent number: 6350403Abstract: The present invention relates to a process for the production of three-dimensional articles by stereolithography using a radiation-curable composition comprising a mixture of at least one cationically polymerizable compound and/or at least one free radical polymerizable compound, at least one filler material and at least one photoinitiator for cationic and/or radical polymerization. An organic viscosity stabilizer material may be brought into contact with the composition to substantially delay or prevent undesirable viscosity increase and subsequently premature polymerization. A filler material is optionally added to the composition in an effective amount to at least delay or prevent a significant increase in viscosity and polymerization. The process is particularly suitable for stabilizing resins in stereolithography baths.Type: GrantFiled: May 31, 2000Date of Patent: February 26, 2002Assignee: Vantico Inc.Inventors: Anastasios P. Melisaris, Stephen D. Hanna, Thomas H. Pang
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Patent number: 6350344Abstract: Solvent-free and water-free radiation-curable primers based on hydroxy-functional prepolymers and cycloaliphatic epoxides or based on hydroxy-functional prepolymers and olefinically unsaturated compounds or based on epoxides and vinyl ethers together with cationic or free-radical initiators may be applied in the same manner as conventional commercial solvent-free laminating adhesives and, for many coatings, allow subsequent in-line coating without there being any need to evaporate solvent or water from the primer coating.Type: GrantFiled: April 26, 1999Date of Patent: February 26, 2002Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Hans-Georg Kinzelmann, Michael Drobnik
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Patent number: 6350791Abstract: The invention relates to a thermosettable adhesive comprising a thermosettable polymer component, a thermoformable polymer component, an effective amount of a heat-activatable and/or photoactivatable curing system for curing the thermosettable polymer component, and from 0.5-20 wt. % with respect to the mass of the thermosettable adhesive of one or more hydroxides and/or hydroxyoxides of Al, Mg and/or Zr.Type: GrantFiled: June 27, 2000Date of Patent: February 26, 2002Assignee: 3M Innovative Properties CompanyInventors: Georg Feichtmeier, Peggy S. Willett
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Patent number: 6348118Abstract: A method of bonding a component to glass comprising disposing a pressure-sensitive adhesive sheet material between said component and said glass so that said adhesive sheet material is adhered to said component and said glass, wherein said adhesive sheet material comprises the photopolymerization reaction product of starting materials comprising: (a) a monomeric mixture or partially prepolymerized syrup comprising at least one acrylic acid ester of an alkyl alcohol and at least one copolymerizable monomer; (b) an epoxy resin or a mixture of epoxy resins, (c) a heat-activatable hardener for the epoxy resin or mixture of epoxy resins, (d) a photoinitiator, and (e) a pigment.Type: GrantFiled: February 6, 1997Date of Patent: February 19, 2002Assignee: 3M Innovative Properties CompanyInventors: Michael A. Johnson, Jon M. Pennycook
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Publication number: 20020018959Abstract: This invention discloses compositions adapted to produce, through solid imaging means, excellent quality objects having material properties that simulate the look and feel of polypropylene articles.Type: ApplicationFiled: March 31, 2000Publication date: February 14, 2002Inventors: John A. Lawton, Chandler P. Chawla
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Publication number: 20020016379Abstract: A UV-polymerizable formulation comprising a polymerizable formulation and an aluminum trihydrate filler with a particle size of from 1 to 10 micrometers. The formulation is intended for use in the production of coated abrasives can be used to produce a very much thicker coating if a UV-transparent filler is used.Type: ApplicationFiled: September 14, 2001Publication date: February 7, 2002Inventors: Anthony C. Gaeta, Gwo Shin Swei, Edmund F. Butryn
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Publication number: 20020013380Abstract: Photopolymerizable compositions are provided which are the reaction products of a vinyl ether, a photoinitiator system comprising an iodonium salt, a visible light sensitizer, and an electron donor compound. These monomeric/oligomeric compositions may also include epoxides, polyols, spiroorthocarbonates. One embodiment of the present invention is a polymerizable composition comprised of a vinyl ether, a spiroorthocarbonate, and a photoinitiator system. Another embodiment of the present invention is a polymerizable composition comprised of a vinyl ether, an epoxide, a polyol, and a photoinitiator system. Still another embodiment of the present invention is a polymerizable composition comprised of a vinyl ether, an epoxide, a polyol, a spiroorthocarbonate, and a photoinitiator system.Type: ApplicationFiled: January 15, 1999Publication date: January 31, 2002Inventors: CECIL C. CHAPPELOW, CHARLES S. PINZINO, J. DAVID EICK, JOEL D. OXMAN
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Patent number: 6339113Abstract: The invention relates to a photopolymerizable composite resin composition for dental restoration i) based on the multifunctional prepolymer mixture of 2,2-bis-(4-(2-hydroxy-3-methacryloyloxypropoxy)phenyl)propane (“Bis-GMA”) and multifunctional prepolymer formed by substituting hydrogen atoms in hydroxyl group with methacrylate groups in this Bis-GMA molecules, and ii) comprising a diluent, an inorganic filler, a photoinitiation system, and other additives. The photopolymerizable composite resin composition for dental restoration based on multifunctional prepolymer mixture has better physical and mechanical properties and biocompatibility than the conventional composition based on only Bis-GMA itself.Type: GrantFiled: October 30, 2000Date of Patent: January 15, 2002Assignee: Dentkist Co., Ltd.Inventors: Dong-Keun Han, Kwang-Duk Ahn, Jong-Man Kim, Jin-Hee Jeong
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Publication number: 20010046642Abstract: The present invention relates to a liquid, radiation-curable composition containing a cationically activated component, a cationic photoinitiator or a mixture of cationic photoinitiators, at least an effective amount of a compound having at least one terminal and/or pendant unsaturated group and at least one hydroxyl group in its molecule. The composition is free of free radical initiator. The compositions described herein are particularly useful in stereolithography process systems for producing three-dimensional articles.Type: ApplicationFiled: February 5, 2001Publication date: November 29, 2001Inventors: David L. Johnson, Richard Leyden, Ranjana C. Patel
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Patent number: 6322892Abstract: There is disclosed a cation-polymerizable coating composition characterized by containing (A) a cation-polymerizable binder component consisting of (a) an epoxy group-containing compound and, as necessary, (b) an oxetane compound, (B) a modified dimethylsilicone oil with a number average molecular weight of 500-1,000,000 having a hydroxyl group(s) bonded directly to a silicon atom, a hydrolyzable functional group(s) bonded directly to a silicon atom and capable of forming a hydroxyl group(s) bonded directly to a silicon atom by hydrolysis, or a carboxyl group(s), and (C) a cation-polymerization initiator which forms a cation by irradiation or by heating. Said coating composition is suitable particularly for coating cans capable of forming a coating film having excellent adhesivity, processibility, hardness, initial lubricity and lubricity after the retort treatment.Type: GrantFiled: June 8, 1999Date of Patent: November 27, 2001Assignee: Kansai Paint Co., Ltd.Inventor: Seiji Takami
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Patent number: 6316066Abstract: The invention relates to a thermochromic polymerizable mesogenic composition essentially consisting of: a) a component MA comprising at least one achiral polymerizable mesogenic compound comprising at least one polymerizable functional group, b) a component MB comprising at least one chiral polymerizable mesogenic compound comprising at least one polymerizable functional group, c) a photoinitiator, and d) optionally a dye component, to anisotropic polymers and polymer films with a chiral mesophase obtainable from said thermochromic polymerizable mesogenic composition and to the use of said thermochromic polymerizable mesogenic composition, anisotropic polymers and polymer films for optical information storage, photomasks, decorative pigments, cosmetics, security applications, active and passive optical elements such as polarizers or optical retarders, color filters, scattering displays, adhesives or synthetic resins with anisotropic mechanical properties.Type: GrantFiled: March 10, 2000Date of Patent: November 13, 2001Assignee: Merck Patent Gesellschaft mit beschrankter HaftungInventors: Emma Jolliffe, David Coates
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Publication number: 20010039300Abstract: The present photo-curable resin composition, at least one of which comprises an organic silicic compound, an epoxy resin and a photo initiator capable of polymerizing the organic silicic compound or epoxy resin upon absorption of actinic ray, undergoes polymerization and curing upon absorption of actinic ray, and is suitably applied to multilayered wiring boards and semiconductor devices because its cured product can maintain a desired modulus of elasticity at temperatures as high as or higher than Tg without any decrease in the bonding strength at elevated temperatures and with less development of cracks or peeling.Type: ApplicationFiled: February 23, 2001Publication date: November 8, 2001Inventors: Masao Suzuki, Yuichi Satsu, Akio Takahashi, Harukazu Nakai, Yuzo Ito
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Patent number: 6313188Abstract: The present invention is directed to a photocatalytic composition which comprises at least one compound selected from a group consisting of polycyclic aromatic compounds and carbazole derivatives, both of which contain as substitutes at least any of hydroxy group, optionally-substituted aralkyloxy group or alkoxy group and having an UV absorption spectrum at a wavelength longer than 330 nm, and at least one aryl onium salt selected from a group consisting of diphenylalkylsul fonium salts, dinaphthylalkylsulfonium salts, triphenylsulfonium salts, diphenyliodonium salts, phenylnaphthyliodonium salts and dinaphthyliodonium salts, those which perform as a catalyst for cationic photopolymerization. The photocatalytic composition according to the present invention can be cured by admixing it with a cationically-polymerizable compound in the presence of an actinic radiation, such as light, electron beam and X-ray.Type: GrantFiled: March 19, 1999Date of Patent: November 6, 2001Assignee: Nippon Soda Co., Ltd.Inventor: Eiji Takahashi
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Patent number: 6313255Abstract: Telechelic polymers are presented, comprising polysiloxane polymers having multiple epoxy end-groups of the formula G—R3—SiR1R2O(SiR1R2O)mSiR1R2—R3—G wherein each R1 and R2 are independently monovalent alkyl, alkoxy, aryl, aryloxy, and halohydrocarbon radicals having from 1 to 20 carbon atoms, halohydrocarbon radicals having the formula CnF2n+1CH2CH2— wherein n is an integer from 1 to 18; m is an integer in the range from 10 to about 1000; R3 is a divalent hydrocarbon radical having from 2 to 18 carbon atoms; and G is a silicon-based functionalized end group, wherein the functionalities are selected from the group consisting of epoxides, vinyl ethers, propenyl ether, or a combination thereof.Type: GrantFiled: November 10, 1999Date of Patent: November 6, 2001Assignee: General Electric CompanyInventor: Slawomir Rubinsztajn
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Patent number: 6310115Abstract: Radiation curable ink compositions for ink jet contain radiation curable monomers containing vinylether and acrylate functions.Type: GrantFiled: September 15, 1999Date of Patent: October 30, 2001Assignee: AGFA-GevaertInventors: Luc Vanmaele, Emiel Verdonck
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Patent number: 6309502Abstract: To produce a conductive epoxy resin composition with improvement in the characteristics of rapid-curability, heat resistance and moisture resistance, adhesion reliability, storage properties and low-temperature curability that can be used effectively for production of conductive adhesive films. The conductive epoxy resin composition comprises an alicyclic epoxy resin, optional diols, a styrenic thermoplastic elastomer with an epoxy group in the molecule, an ultraviolet activated cationic polymerization catalyst, an optional tackifier having an aromatic ring in the molecule, and conductive particles.Type: GrantFiled: December 29, 1999Date of Patent: October 30, 2001Assignee: 3M Innovative Properties CompanyInventors: Yuji Hiroshige, Koji Ito