Quinone Ring Is Part Of Polynuclear System, E.g., Anthraquinone, Etc. Patents (Class 522/48)
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Patent number: 6342122Abstract: An solvent-based pressure sensitive adhesive (PSA) having improved shear adhesion is composed of an acrylic-based PSA resin, an ethylenically unsaturated polyester, an ultraviolet radiation (UV) photosensitizer, and fugative organic solvent for the acrylic-based PSA resin. The PSA is cured by evaporation of the fugative organic solvent coupled with heat and UV irradiation or UV irradiation alone. Such PSA has improved shear adhesion by dint of the addition of the ethylenically-unsaturated polyester and an ultraviolet radiation (UV) photosensitizer. A method for adhering two substrates using the PSA includes applying the PSA to one or both of substrates. The solvent in the PSA is evaporated from the applied PSA. Finally, the polyester component of the applied PSA is cured by exposure of the applied PSA to ultraviolet (UV) radiation.Type: GrantFiled: August 7, 2000Date of Patent: January 29, 2002Assignee: Ashland Chemical, Inc.Inventors: Daniel Joseph Riley, Raymond Scott Harvey, Harvey Joseph Richards, Peter Albert Yurcick
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Patent number: 6313189Abstract: Described herein are methods for preparing bioabsorbable polymerization products having interconnecting pore structure by polymerizing compositions containing ethylene glycol- or glycero-oligoester(meth)acrylates monomers and, optionally, other components. The polymerization products are particularly useful for dental lacquers, dental inlays and shaped articles which are bioabsorbable and exhibit an interconnecting pore structure.Type: GrantFiled: May 4, 1999Date of Patent: November 6, 2001Assignee: Merck Patent Gesellschaft mit beschrankter HaftungInventors: Robert Wenz, Berthold Nies
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Publication number: 20010025061Abstract: A photopolymerizable composition for use in forming a photopolymer composition for use in forming the light transmissive regions of light transmissive devices, and such devices.Type: ApplicationFiled: March 27, 2001Publication date: September 27, 2001Inventors: Chengjiu Wu, Michael J. McFarland, Karl W. Beeson
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Patent number: 6224894Abstract: The present invention describes a polyoxaester copolymer and blends thereof that may be used to produce hydrogels, surgical devices such as sutures, sutures with attached needles, molded devices, drug matrices, adhesives, sealants and the like. The invention also contemplates a process for producing these polyesters. The polyoxaester copolymers of the present invention are formed from a first divalent repeating unit of formula IA: [—O—C(O)—R30—C(O)—] IA a second divalent repeating unit of the formula IB: [O—C(O)—C(R1)(R2)—O—R3—O—C(R′1)(R′2)—C(O)—] IB and a third repeating unit selected from the group of formulas consisting of: [—O—R4—]A, II [—O—R5—C(O)—]B, III ([—O—R5—C(O)]P—O—)LG XI and combinations thereof.Type: GrantFiled: August 11, 2000Date of Patent: May 1, 2001Assignee: Ethicon, Inc.Inventors: Dennis D. Jamiolkowski, Rao S. Bezwada
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Patent number: 6210759Abstract: Single-solution adhesive resin formulations are made of predominantly dimethacrylates or diacrylates containing predominantly) two carboxyl groups and a functionalized methacrylate or acrylate diluent monomer. A novel light-activated initiator can be used for photopolymerization of such adhesives.Type: GrantFiled: March 15, 2000Date of Patent: April 3, 2001Assignee: American Dental Association Health FoundationInventor: Sabine H. Dickens
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Patent number: 6206959Abstract: Single-solution adhesive resin formulations are made of predominantly dimethacrylates or diacrylates containing (predominantly) two carboxyl groups and a functionalized methacrylate or acrylate diluent monomer. A novel light-activated initiator can be used for photopolymerization of such adhesives.Type: GrantFiled: March 15, 2000Date of Patent: March 27, 2001Assignee: American Dental Association Health FoundationInventor: Sabine H. Dickens
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Patent number: 6207726Abstract: A photocurable prepreg composition which is characterized by easy control of a B stage state of a thermosetting resin such as an unsaturated polyester resin or an epoxy acrylate resin, excellent storage stability, and remarkable curability after being shaped; as well as a production method therefor. A photocurable prepreg composition which contains an unsaturated polyester resin and/or an epoxy acrylate resin; at least two photopolymerization initiators with photosensitivity in different wavelength ranges; and an inorganic or an organic fiber-reinforcing material and/or filler, and which composition is treated with light of a specific wavelength such that at least one photopolymerization initiator and radical-polymerizable unsaturated groups remain partially in said resin; a production method therefor; and formed articles produced therefrom.Type: GrantFiled: February 11, 1999Date of Patent: March 27, 2001Assignees: Showa Denko Kabushiki Kaisha, Showa Highpolymer Co., Ltd.Inventors: Kazuo Ohtani, Tomio Yamamoto, Hidetake Sendai, Shuichi Sugita, Hirotoshi Kamata, Takeo Watanabe
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Patent number: 6204302Abstract: A photoinitiator composition that includes (a) 1-aryl-2-alkyl-1,2-ethanedione and (b) a rigid 1,2-dione in a weight ratio of (a):(b) in a range of about 1:20 to about 20:1 is disclosed. The photoinitiator composition can be used in a photocurable dental composition in an amount sufficient to achieve a degree of double-bond conversion of at least 50%. Methods for making the photocurable dental composition are also disclosed.Type: GrantFiled: November 19, 1999Date of Patent: March 20, 2001Assignee: Bisco, Inc.Inventors: H. Ralph Rawls, Yeong-Joon Park, Kyu-Ho Chae
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Patent number: 6147168Abstract: The present invention describes a polyoxaester copolymer and blends thereof that may be used to produce hydrogels, surgical devices such as sutures, sutures with attached needles, molded devices, drug matrices, adhesives, sealants and the like. The invention also contemplates a process for producing these polyesters. The polyoxaester copolymers of the present invention are formed from a first divalent repeating unit of formula IA:[--O--C(O)--R.sub.30 --C(O)--] IAa second divalent repeating unit of the formula IB:[O--C(O)--C(R.sub.1)(R.sub.2)--O--R.sub.3 --O--C(R'.sub.1)(R'.sub.2)--C(O)--] IBand a third repeating unit selected from the group of formulas consisting of:[--O--R.sub.4 --].sub.A, II[--O--R.sub.5 --C(O)--].sub.B, III([--O--R.sub.5 --C(O)].sub.P --O--).sub.L G XIand combinations thereof. These aliphatic polyoxaesters may be blended with other polymers that are preferably biocompatable.Type: GrantFiled: April 20, 1998Date of Patent: November 14, 2000Assignee: Ethicon, Inc.Inventors: Dennis D. Jamiolkowski, Rao S. Bezwada
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Patent number: 6140385Abstract: Novel substituted diaryl ketones, photopolymerization compositions including the compounds, 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 ultraviolet light using conventional techniques and radiation sources to give greatly improved cure speeds. The compounds of the invention also show a significantly elevated level of reactivity at a narrow wavelength band, with a peak emission wavelength at or near 308 nm. Because of the increased level of activity, the photoinitiator can be used in considerably lower amounts.Type: GrantFiled: September 30, 1998Date of Patent: October 31, 2000Assignee: First Chemical CorporationInventors: Joseph Stanton Bowers, Jr., Rajamani Nagarajan, Charles Uriah Pittman, Jr., E. Sonny Jonsson
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Patent number: 6114408Abstract: Single-solution adhesive resin formulations are made of predominantly dimethacrylates or diacrylates containing (predominantly) two carboxy groups and a functionalized methacrylate or acrylate diluent monomer. A novel light-activated initiator can be used for photopolymerization of such adhesives.Type: GrantFiled: February 6, 1998Date of Patent: September 5, 2000Assignee: American Dental Association Health FoundationInventor: Sabine Dickens
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Patent number: 6096794Abstract: Dye compounds of the formula ##STR1## wherein X is for example CH, C--CH.sub.3 or .sup.+ NOR L.sup.- ; R is inter alia C.sub.1 -C.sub.6 alkyl; R.sub.1 is for example C.sub.1 -C.sub.8 alkoxy or C.sub.1 -C.sub.12 alkyl; s is 0 to 4; R.sub.2 is for example hydrogen; Ar is for example a group ##STR2## Y inter alia is C.sub.1 -C.sub.6 alkyl or C.sub.1 -C.sub.6 alkoxy; r in the formula (A) is 0 to 5, in the formulae (B) and (E) is 0 to 9 and in the formula (D) is 0 to 7; and L is an anion;in combination with an electron donor compound, especially a borate compound, are suitable as photoinitiators for the photopolymerization of radically polymerizable compositions.Type: GrantFiled: October 26, 1998Date of Patent: August 1, 2000Assignee: Ciba Specialty Chemicals CorporationInventors: Allan Francis Cunningham, Martin Kunz
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Patent number: 6090865Abstract: Compounds of formula (I), ##STR1## wherein X is CH, C--CH.sub.3, C--Cl, C--O--C.sub.1 -C.sub.8 alkyl or N; R is C.sub.1 -C.sub.6 alkyl, benzyl, CH.sub.2 COOR.sub.3 or a group (a); R.sub.1 is C.sub.1 -C.sub.8 alkoxy, C.sub.1 -C.sub.12 alkyl, halogen, NO.sub.2, benzyloxy or phenyloxy, wherein the phenyl ring in the benzyloxy or phenyloxy group is unsubstituted or substituted by C.sub.1 -C.sub.6 alkoxy, C.sub.1 -C.sub.12 alkyl, halogen or CF.sub.3 ; R.sub.2 is C.sub.1 -C.sub.8 alkoxy, C.sub.1 -C.sub.12 alkyl, benzyloxy or phenyloxy, wherein the phenyl ring in the benzyloxy or phenyloxy group is unsubstituted or substituted by C.sub.1 -C.sub.6 alkoxy, C.sub.1 -C.sub.12 alkyl, halogen or CF.sub.3 ; R.sub.3 is hydrogen, C.sub.1 -C.sub.12 alkyl or benzyl; Y is unsubstituted or C.sub.1 -C.sub.6 alkoxy-substituted C.sub.1 -C.sub.6 alkyl, or Y is C.sub.1 -C.sub.6 alkoxy, halogen, CF.sub.3, NO.sub.2, benzyloxy or phenyloxy, wherein the phenyl ring in the benzyloxy or phenyloxy group is unsubstituted or substituted by C.Type: GrantFiled: October 26, 1998Date of Patent: July 18, 2000Assignee: Ciba Specialty Chemicals CorporationInventors: Christopher Curtis Dudman, Allan Francis Cunningham, Martin Kunz
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Patent number: 6031016Abstract: A single package adhesive for tooth bonding application comprising a solvent-based homogeneous mixture ofa) an ethylenically unsaturated functional and hygroscopically functional monomer;b) an ethylenically unsaturated functional and hygroscopically functional coupling agent that is capable of (a) chemically reacting with and through the ethylenic bond of the ethylenically unsaturated functional monomer of 1) above and (b) chemically bonding to the surface to which the adhesive is applied;c) a poly-ethylenically unsaturated functional crosslinking agent that is capable of reacting with the monomer of 1) above and the coupling agent of 2) above; andd) a photoinitiator that induces addition polymerization of an ethylenically unsaturated compound.A method for forming a composite and composite structure are included that emply the single package adhesive.Type: GrantFiled: September 18, 1998Date of Patent: February 29, 2000Assignee: Den-Mat CorporationInventors: Robert L. Ibsen, William R. Glace
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Patent number: 5977199Abstract: The invention describes a dental composition, delivery system and method for making temporary crowns and bridges in which the composition comprises two free-radical polymerizable pastes, one a catalyst paste and the other a base paste, wherein the catalyst paste comprises at least one polymerizable monomer, at least one polymerization initiator which is a peroxide oxidizing agent, at least one first polymerization inhibitor and a filler, and wherein the base paste comprises at least one polymerizable monomer, at least one polymerization accelerator, at least one second polymerization inhibitor, at least one non-polymerizable plasticizer and a filler. These catalyst and base pastes are stored in a dual cartridge from which they can be dispensed with a dispenser, preferably in a 1:1 volume ratio, and can be mixed in a static mixer to form a moldable polymerizing material, which is then applied to a prepared area of one or more teeth in a patient's mouth to form a crown or a bridge.Type: GrantFiled: February 17, 1998Date of Patent: November 2, 1999Assignee: The Kerr CorporationInventor: Xiaoyi Xie
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Patent number: 5945462Abstract: The present invention relates to an aqueous-based coating composition for forming strippable, protective coating for protecting surfaces, such as glass, metal, ceramic, plastic or other materials of construction. More specifically, the compositions and coatings formed therefrom of this invention are particularly useful in connection with protecting precision surfaces, such as optical lenses, including but not limited to ophthalmic lenses, telescopic lenses, microscopic lenses, and the like, which protection is desirably only of a temporary nature.Type: GrantFiled: October 2, 1997Date of Patent: August 31, 1999Assignee: Loctite CorporationInventor: Peter A. Salamon
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Patent number: 5942555Abstract: A photoactivatable reagent useful as a chain transfer reagent for providing a semitelechelic polymer having one or more terminal photoactivatable groups. The reagent provides one or more photoactivatable groups and one or more sulfhydryl (or other chain transfer) groups, the photoactivatable and chain transfer groups optionally being joined together by a spacer group. The reagent can be used to prepare a polymer by serving to initiate the polymerization of ethylenically unsaturated monomers. The reagent itself becomes an integral part of the resultant polymer, thereby providing the polymer with a terminal photoactivatable nature. The method provides a number of benefits, including the ability to provide homogeneous photoactivatable polymer compositions, e.g., in terms of the uniform location of the photogroup(s) on the terminal portion of each polymer molecule and the ability to build a desired nonpolar quality, and in turn improved surfactancy, into otherwise polar polymers.Type: GrantFiled: March 21, 1996Date of Patent: August 24, 1999Assignee: SurModics, Inc.Inventors: Melvin J. Swanson, Richard A. Amos, Dale G. Swan, Gary W. Opperman
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Patent number: 5925689Abstract: Adhesive coatings designed primarily for protecting, restoring, repairing, or modifying surfaces of, objects made of polymeric materials. Such coatings are particularly useful in application over worn, cracked, discolored, or otherwise defective objects made of polyacrylic, polystyrene, and polycarbonate resins. The adhesives of this invention are basically comprised of blends containing a substantial concentration of tetrahydrofurfuryl methacrylate and/or furfuryl methacrylate.Type: GrantFiled: June 20, 1997Date of Patent: July 20, 1999Assignee: Scientific Pharmaceuticals, Inc.Inventors: Jan A. Orlowski, David V. Butler, Jeffrey R. H. MacDonald
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Patent number: 5883147Abstract: A photopolymerizable adhesive consisting of Compound (1) which contains at least one (meth)acryloxy group as a polymerizing group in its molecule, and other structures constructed from the group(s) selected from the group consisting of alkyl group, alkyloxy group, polyalkoxy group, siloxanyl group and the substituted group thereof substituted by fluorine, hydroxy or alkoxy group; Compound (2) selected from (meth)acrylic acids, hydroxyalkyl (meth)acrylates, (meth)acryloxyalkyl succinic acids, trialkoxyvinyl silanes and .gamma.-(meth)acryloxyalkyl trialkoxy silanes; and Compound (3) selected from hydroxyacetophenones, acetophenones, glyoxy esters and camphorquinones, wherein said adhesive comprises 3 to 60 wt % of the compound (2), and 0.1 to 2 wt % of the Compound (3).Type: GrantFiled: June 7, 1995Date of Patent: March 16, 1999Assignee: Japan Institute of Advanced DentistryInventors: Eiichi Masuhara, Shigeo Komiya, Takeyuki Sawamoto, Satoko Maeda
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Patent number: 5859150Abstract: The present invention describes a prepolymer of an aliphatic polyoxaester having a polymerizable end group that may be used to produce hydrogels, surgical devices such as sutures, sutures with attached needles, molded devices, and the like.Type: GrantFiled: November 5, 1997Date of Patent: January 12, 1999Assignee: Ethicon, Inc.Inventors: Dennis D. Jamiolkowski, Rao S. Bezwada
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Patent number: 5847020Abstract: A single package adhesive for tooth bonding application comprising a solvent-based homogeneous mixture ofa) an ethylenically unsaturated functional and hygroscopically functional monomer;b) an ethylenically unsaturated functional and hygroscopically functional coupling agent that is capable of (a) chemically reacting with and through the ethylenic bond of the ethylenically unsaturated functional monomer of 1) above and (b) chemically bonding to the surface to which the adhesive is applied;c) a poly-ethylenically unsaturated functional crosslinking agent that is capable of reacting with the monomer of 1) above and the coupling agent of 2) above; andd) a photoinitiator that induces addition polymerization of an ethylenically unsaturated compound.A method for forming a composite and composite structure are included that emply the single package adhesive.Type: GrantFiled: June 6, 1997Date of Patent: December 8, 1998Assignee: Den-Mat CorporationInventors: Robert L. Ibsen, William R. Glace
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Patent number: 5844017Abstract: The present invention describes a prepolymer of aliphatic polyoxaesters containing amines and/or amido groups having polymerizable end groups that may be used to produce surgical devices such as sutures, sutures with attached needles, molded devices, and the like.Type: GrantFiled: November 17, 1997Date of Patent: December 1, 1998Assignee: Ethicon, Inc.Inventors: Dennis D. Jamiolkowski, Rao S. Bezwada
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Patent number: 5736589Abstract: Absorbable polymers and blends of acrylated poly(alkylene diglycolate)s and aliphatic polyesters based on lactone monomers such as lactide, glycolide, e-caprolactone, p-dioxanone, and trimethylene carbonate are described. The polymers and blends exhibit a broad range of properties, useful in a variety of medical devices.Type: GrantFiled: July 30, 1996Date of Patent: April 7, 1998Assignee: Ethicon, Inc.Inventors: Kevin Cooper, Angelo Scopelianos
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Patent number: 5712322Abstract: A composition of matter useful in the production of photoinitiator compositions, said compositions of matter comprising 100 parts by weight of camphorquinone and from 1 to 50 parts by weight of an anthraquinone compound having in the 2-position a substituent of the formula:--X--COR.sup.1 (1)wherein R.sup.1 represents an optionally substituted hydrocarbyl radical and X represents ##STR1## wherein R.sup.2 represents hydrogen or an optionally substituted hydrocarbyl radical.Type: GrantFiled: October 6, 1995Date of Patent: January 27, 1998Assignee: Zeneca LimitedInventors: Pushpito Kumar Ghosh, Iain Andrew Weddell, John Edward Yates
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Patent number: 5696178Abstract: Absorbable polymers and blends of acrylated poly(alkylene diglycolate)s and aliphatic polyesters based on lactone monomers such as lactide, glycolide, e-caprolactone, p-dioxanone, and trimethylene carbonate are described. The polymers and blends exhibit a broad range of properties, useful in a variety of medical devices.Type: GrantFiled: July 22, 1996Date of Patent: December 9, 1997Assignee: Ethicon, Inc.Inventors: Kevin Cooper, Angelo Scopelianos
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Patent number: 5623002Abstract: Provided is a soft contact lens obtained by visible ray polymerization of a mixture comprising one or more of unsaturated carboxylic acid(s) and one or more visible ray polymerization initiator(s), or a mixture comprising one or more of unsaturated carboxylic acid(s), one or more of unsaturated carboxylate(s) and one or more of visible ray polymerization initiator(s).Type: GrantFiled: June 6, 1995Date of Patent: April 22, 1997Assignee: Hoya CorporationInventors: Masashi Nomura, Yuuichi Yokoyama
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Patent number: 5616629Abstract: A radiation-curable release composition is disclosed which comprises:(A) an organopolysiloxane represented by the formulaRSi(CH.sub.3).sub.2 --O--(Si(CH.sub.3).sub.2 O).sub.n (Si(CH.sub.3)(R)O).sub.m Si(CH.sub.3).sub.2 R (I)wherein in Formula (I), each R is --R.sup.1 --O(O)C--C(R.sup.2).dbd.CH.sub.2, --R.sup.1 --O--C(R.sup.2).dbd.CH.sub.2 or is derived from an organic molecule containing both ethylenic unsaturation and epoxide functionality; R.sup.1 is a hydrocarbylene group; each R.sup.2 is independently hydrogen or a methyl or ethyl group; m is a number from about 1 to about 15; and n is a number from about 50 to about 300; and(B) an organosiloxane copolymer represented by the formula(R.sub.3 SiO).sub.x (SiO.sub.4/2).sub.y (II)wherein in Formula (II), each R is independently a hydrocarbon group or a group represented by the formula--O(O)C--C(R*).dbd.CH.sub.2wherein R* is hydrogen or a methyl or ethyl group; x is a number from about 0.Type: GrantFiled: February 27, 1995Date of Patent: April 1, 1997Assignee: Avery Dennison CorporationInventors: Thanh V. Nguyen, John Allen, Qun Yu
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Patent number: 5607985Abstract: Photopolymerization initiator for the visible light-polymerizing adhesives; and the visible light-polymerizing adhesives comprising the photopolymerization initiator, an aliphatic tertiary amine and a radical polymerizing monomer. The visible light-polymerizing adhesive of the invention has good transparency without coloring after photopolymerization as well as good adhering activity. It also has colorless, good transparency after photopolymerization and good adhering activity in an UV irradiation test, as well as excellent light resistance showing very little color change and deterioration in an UV irradiation test. The visible light-polymerizing adhesive of the invention is also excellent in photopolymerizing activity. Furthermore, the visible light-polymerizing adhesive of the invention has photopolymerizing activity not only to visible light but also to near-UV. It hardly has problems of such decrease in transparency caused by both kinds of lights as coloring and color change.Type: GrantFiled: October 4, 1994Date of Patent: March 4, 1997Assignee: Adell Co., Ltd.Inventors: Eiichi Masuhara, Shigeo Komiya, Takeyuki Sawamoto, Yumiko Satou
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Patent number: 5578419Abstract: Dyes suitable for use in the fabrication of color filters are described which contain one or more photopolymerizable substituents preferably represented by the following formula:D-(A-Yn.sup.1)n.sup.2 (1)where D represents a chromphoric nucleus, A denotes a connecting group, Y means the photopolymerizable group, n.sup.1 is 1-10,000, and n.sup.2 stands for an integer of 1-10. Also described are photosensitive resist resin compositions containing the dyes as well as color filters fabricated by curing the photosensitive resist resin compositions.Type: GrantFiled: April 6, 1994Date of Patent: November 26, 1996Assignee: Mitsui Toatsu Chemicals, IncorporatedInventors: Hisato Itoh, Akio Karasawa, Kenichi Sugimoto
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Patent number: 5554665Abstract: A method of forming dental products, such as dentures, denture relines, dental crowns, dental bridges and dental restorative materials, temporary crown, temporary bridge, provisional crown or provisional bridge, from two polymerizable paste compositions each having a complimentary component of a free radical catalyst system and a polymerizable acrylic compound. One of these paste compositions includes an oxidizing agent and a stabilizer and the other includes a reducing agent as components of a redox catalyst system for free radical polymerization. These paste compositions are mixed in a static mixer to form a polymerizing paste composition, which is then shaped into a dental prosthesis. A handheld mixing dispenser useful in carrying out this method, includes a static mixing conduit, and two containers enclosing the polymerizable paste compositions. The static mixing conduit encloses a static mixing member. The containers are adapted to be connected in fluid flow communication with the static mixing conduit.Type: GrantFiled: April 28, 1995Date of Patent: September 10, 1996Assignee: Dentsply Research & Development Corp.Inventors: Louis H. Tateosian, Scott E. Shaffer, Mark A. Latta
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Patent number: 5539012Abstract: Resin compositions useful for filament winding applications comprising an epoxy component including at least one polyepoxide resin curable by heat, an olefinicially unsaturated monomer component including at least one polyolefinically unsaturated monomer curable by actinic radiation, a cyanate ester component including at least one cyanate ester compound having at least two cyanate functional groups per molecule, at least one organic peroxide, at least one photoinitiator, and a heat activated curing agent for epoxides. The compositions have a viscosity less than about 2000 centipoise (cps) and are capable of retaining this viscosity for at least about 6 months at about ambient temperature. The resins are capable of being immobilized by actinic radiation exposure and further heat cured without substantial resin drip. One or more organic peroxides are employed, selected from the group of organic peroxides having 10 hour decomposition half-lives at temperatures of from about 50.degree. C. to less than about 104.Type: GrantFiled: August 18, 1993Date of Patent: July 23, 1996Assignee: Loctite CorporationInventors: Philip T. Klemarczyk, Yoshihisa Okamoto
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Patent number: 5512606Abstract: Photo-crosslinkable materials comprising a linear polyamide and a 2-substituted anthraquinone as photo-crosslinking agent, the 2-substituted anthraquinone preferably being 2-acrylamidooanthraquinone, 2-acryloxyanthraquinone or 2-benzoylaminoanthraquinone.Type: GrantFiled: August 16, 1994Date of Patent: April 30, 1996Inventors: Norman S. Allen, John P. Hurley
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Patent number: 5429846Abstract: The present invention provides a photo-setting conductive coating composition which is used as an antistatic material constituting articles wherein static electrification must be avoided, such as storage vessels for semi-conductor wafers, electronic/electric parts, floor/wall coverings for a production factory of semi-conductors, etc.The photo-setting conductive coating composition comprising 100 parts by weight of an antimony oxide-containing tin oxide powder (a) having a particle size of 0.01 to 0.4 .mu.m, 10 to 100 parts by weight of a (meth)acrylate compound (b) having at least two (meth)acryloyl groups in a molecule, 10 to 100 parts by weight of an acetal resin (c) having a residual hydroxyl group of 20 to 80 molar %, 0.1 to 10 parts by weight of a photopolymerization initiator (d) and 100 to 1000 parts by weight of an organic solvent (e).Type: GrantFiled: October 25, 1994Date of Patent: July 4, 1995Assignee: Sekisui Chemical Co., Ltd.Inventors: Toshiya Sugimoto, Minoru Suezaki, Kouji Maruyama
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Patent number: 5407970Abstract: The invention relates to adhesive compositions comprising terpolymers C.sub.6 to C.sub.10 unsaturated .alpha.-olefin monomers, C.sub.2 to C.sub.5 .alpha.-olefin monomers and polyene monomers and an effective amount of photoactive cross-linking agent to cross-link composition upon radiation from a source of active radiation.Type: GrantFiled: April 13, 1993Date of Patent: April 18, 1995Assignee: Minnesota Mining and Manufacturing CompanyInventors: James R. Peterson, Gaddam N. Babu
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Patent number: 5391749Abstract: Substituted naphthacenediones of the formula I ##STR1## in which R.sup.1 to R.sup.8 are H and at least one of R.sup.1 to R.sup.8, for example R.sup.2 and R.sup.3 or R.sup.2 and R.sup.6, are, for example, C.sub.1 -C.sub.20 alkoxy, C.sub.1 -C.sub.20 alkenoxy, C.sub.1 -C.sub.20 -alkylsulfinyl, --CN, --CF.sub.3, --NO.sub.2, --Si(CH.sub.3).sub.3 or --COO(C.sub.1 -C.sub.12 alkyl), are suitable, when incorporated into polymers having hydroxyalkyl groups, for currentless deposition of metals onto the polymer surface. They are in some cases suitable as photoinitiators.Type: GrantFiled: February 28, 1992Date of Patent: February 21, 1995Assignee: Ciba-Geigy CorporationInventors: Walter Fischer, Marcus Baumann, Jurgen Finter, Vratislav Kvita, Carl W. Mayer, Wolfgang Wernet
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Patent number: 5376503Abstract: A lithographic coating and method of framing a lithographic image are disclosed. The method comprises coating at least a portion of a surface of an article with a radiation-crosslinkable polymer, and exposing the coated surface to a pattern of radiation to crosslink the polymer in a lithographic image. The functionalized polymer is a copolymer of an isoolefin of 4 to 7 carbon atoms and para-alkylstyrene, wherein the para-alkylstyrene is functionalized with a radiation reactive group at the para-alkyl group of the para-alkylstyrene.Type: GrantFiled: November 24, 1992Date of Patent: December 27, 1994Assignee: Exxon Chemical Patents Inc.Inventors: Jay D. Audett, Kenneth O. McElrath
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Patent number: 5371116Abstract: Vulcanizable organopolysiloxane compositions comprise a hydroxy-terminated organopolysiloxane, an acrylic or methacryllc functional alkoxy silane, a divalent tin compound, an alkoxy-.alpha.-silyl ester, a photopolymerization initiator, and a curing catalyst whereby the composition is cured by UV irradiation and/or by the action of moisture in air. The composition has good shelf stability and can yield rubber elastomers having good physical properties.Type: GrantFiled: July 13, 1993Date of Patent: December 6, 1994Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Takafumi Sakamoto, Masatoshi Arai, Kei Miyoshi
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Patent number: 5340847Abstract: A composition useful as a liquid gasket, having high working efficiency and high initial pressure resistance, is provided. The composition, characterized by being curable by ultraviolet light and by moisture, includes (a) a polysiloxane containing, on at least one molecular end, at least one group selected from the group consisting of (meth)acryl, glycidyl, propenyloxysilyl and thiol; (b) a polyorganosiloxane having silanol groups at both molecular ends; (c) a polyorganosiloxane having, on at least one molecular end, a hydrolyzable group; (d) a photopolymerization catalyst; and (e) a condensation catalyst.Type: GrantFiled: July 23, 1993Date of Patent: August 23, 1994Assignee: Three Bond Co., Ltd.Inventors: Yasuo Hanazuka, Ikuzo Usami, Kazuyuki Chiba, Noriko Mizutani
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Patent number: 5331018Abstract: The present invention is directed to a non-emissive, bimodal cured polymeric network which has an onset degradation temperature that is about 100.degree. C. above the onset degradation temperature of a base polymer. The novel cured polymeric network comprises the cured reaction product of the following ingredients: (a) combination of one or more liquid carrier monomers or prepolymers which combination is reactive to form a base polymer by exposure to ultraviolet (UV) radiation in the presence of a UV photosensitizer at a temperature, T.sub.uv ; and (b) between about 10 and 100 wt-% based on ingredient (a) of a combination of one or more monomers or prepolymers which combination is reactive to form a cured high temperature stable polymer by heating at a temperature, T.sub..DELTA.. Ingredient (b) is soluble or dispersible in ingredient (a) at a temperature, T.sub.s, wherein T.sub.s is equal to or lower than T.sub.uv, and T.sub.uv is at least about 50.degree. C. lower than T.sub..DELTA..Type: GrantFiled: August 26, 1992Date of Patent: July 19, 1994Assignee: Three Bond Co., Ltd.Inventors: Vincent D. McGinniss, James L. White, Hiroyuki Mikuni
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Patent number: 5302627Abstract: Adding a dye with a visible color to an ultraviolet radiation curable composition which contains a photoinitiator which generates free radicals upon exposure to ultraviolet radiation produces a composition which changes visible color upon exposure to ultraviolet radiation. This visible color change indicates that the composition has cured. This cure indication is useful for compositions curable by ultraviolet radiation in the electronics and electrical industry.Type: GrantFiled: March 9, 1992Date of Patent: April 12, 1994Assignee: Dow Corning CorporationInventors: Arthur J. Field, Michael R. Strong
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Patent number: 5296511Abstract: The present film-former composition comprises (a) an organosilazane copolymer having a perfluoroalkyl group-containing structural unit and a methacryloyloxy group-containing structural unit, (b) a photosensitizer soluble in an organic solvent, and (c) an organic solvent. The composition is cured by irradiation with ultraviolet light for a short period of time to form a film excellent in water repellency, oil repellency, and hardness.Type: GrantFiled: February 7, 1992Date of Patent: March 22, 1994Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Yoshihito Ohsawa, Kohei Hasegawa, Masanori Sutou, Satoshi Kuwata
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Patent number: 5283265Abstract: A photopolymerizable rubber being obtained by copolymerizing four compounds consisting of a dienic liquid rubber having hydroxyl groups, an ethylenically unsaturated monomer having hydroxyl groups, a dihydric alcohol having a molecular weight of less than 2,000 and a diisocyanate compound. The photocured product of this composition has higher tensile strength and elongation than that of the prior photopolymerizable rubbers.Type: GrantFiled: April 18, 1988Date of Patent: February 1, 1994Assignee: Hayakawa Rubber Company LimitedInventors: Tetsuya Kimura, Syuno Suto, Fujii Toshihiro, Toshihiro Fujii, Kimio Mori, Tsuguo Yamaoka
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Patent number: 5283160Abstract: A photopolymerisable composition comprising a polymerisable olefinically unsaturated compound and a photoinitiator composition(a) a photoinitiator comprising an anthraquinone compound having in the 2-position a substituent of the formula:--X COR.sup.1wherein R.sup.1 represents an optionally substituted hydrocarbyl radical and X represents ##STR1## wherein R.sup.2 represents hydrogen or an optionally substituted hydrocarbyl radical, and(b) a hydrogen donor capable of reducing the photoinitiator when the latter is in an excited state.Type: GrantFiled: November 10, 1992Date of Patent: February 1, 1994Assignee: Zeneca LimitedInventors: N. S. Allen, R. T. Cook, C. H. McLean, I. A. Weddell
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Patent number: 5130227Abstract: A radiation sensitive plate comprises a substrate coated with a photopolymerizable composition. The composition comprises a polymerizable compound containing ethylenic unsaturation, a perester photoinitiator and optionally an optical sensitiser. The substrate may be a sheet of grained and anodized aluminum and the plate is useful in the production of lithographic printing plates.Type: GrantFiled: October 5, 1989Date of Patent: July 14, 1992Assignee: Vickers PlcInventors: John R. Wade, Rodney M. Potts, Michael J. Pratt
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Patent number: 5087550Abstract: Radiation-reactive mixtures suitable for producing insulating layers and printed circuits are composed of certain precursors for preparing polyimides, polyisoindoloquinazolinediones, polyoxiazinediones, polyquinazolinediones or polyquinazolones and aryl-containing carbonyl compounds which when excited by UV radiation are capable of hydrogen abstraction, these mixtures undergoing solubility differentiation on irradiation with actinic light.Type: GrantFiled: September 26, 1989Date of Patent: February 11, 1992Assignee: BASF AktiengesellschaftInventors: Rainer Blum, Gerd Rehmer, Hans Schupp
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Patent number: 5073477Abstract: Disclosed is a photosensitive resin composition for flexographic printing which has high water developability and good mechanical strength. The resin composition comprises (A) a partially crosslinked copolymer prepared by a radical emulsion polymerization of a specific monomer mixture (B) a linear polymer having a molecular weight of at least 5,000, which has at least 30 mol % of a conjugated diene unit, (C) a basic nitrogen atom-containing compound, (D) a photopolymerizable ethylenically unsaturated monomer, and (E) a photopolymerization inhitiator. The present invention also provides a resin plate for flexographic printing obtained from the above mentioned resin composition and a process for preparing it. The present invention further provides a printing plate obtained from the resin plate and a process for preparing it.Type: GrantFiled: December 4, 1990Date of Patent: December 17, 1991Assignee: Nippon Paint Co., Ltd.Inventors: Hidefumi Kusuda, Katsuji Konishi, Koichi Ueda
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Patent number: 5049321Abstract: A method for coating a plastic lens element including applying a coating composition consisting substantially of reactants having at least triacrylate functionality, a photo-initiator and a polymerization inhibitor reactive with oxygen to the face of a mold. The coating is subjected to ultraviolet light in an oxygen containing environment such that a hard abrasion-resistant coating is formed. The mold is then filled with a lens forming composition which is reactive with acrylate groups of the coating at the coating/lens interface. The lens forming composition is permitted to cure in the mold with the lens forming composition being bonded to the lens coating.Type: GrantFiled: January 5, 1990Date of Patent: September 17, 1991Assignee: Signet Armorlite, Inc.Inventor: George Galic
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Patent number: 4996134Abstract: A conjugated diene copolymer comprising (A) 10 to 60 mole % of a conjugated diene compound unit, (B) 5 to 50 mole % of an .alpha.,.beta.-ethylenically unsaturated carboxylic acid unit, (C) 0.1 to 20 mole % of a polyfunctional alkenyl compound unit, (D) 0 to 10 mole % of a diene compound unit having cyclic carbon-carbon double bonds and (E) 0 to 80 mole % of a monoolefinically unsaturated compound unit, the sum of the amounts of units (A), (B), (C), (D) and (E) being 100 mole %, said copolymer having an intrinsic viscosity [.eta.] of 0.01 to 3.0 dl/g as measured at 30.degree. C. in dimethylformamide. The copolymer is soluble in aqueous alkali solutions, excels in processability and photosetting property, and has excellent rubber elasticity and transparency even after photosetting.Type: GrantFiled: March 26, 1985Date of Patent: February 26, 1991Assignee: Japan Synthetic Rubber Co., Ltd.Inventors: Hiroji Enyo, Shin-ichiro Iwanaga, Yasuhiko Takemura
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Patent number: 4996132Abstract: The photosensitive resin composition comprises (a) a ternary copolymer of an ethylenically unsaturated amide, carboxyl-containing monomer and third monomer, (b) an esterified resin by the reaction of an unsaturated carboxylic acid and a novolactype epoxy resin, (c) a photopolymerizable monomer, (d) a photopolymerization initiator and (e) a powder such as a finely divided silica filler. The resist layer formed from the composition is capable of being developed with an alkaline aqueous solution and has excellent heat resistance in addition to other desirable properties when the patterned resist layer by the pattern-wise exposure to ultraviolet light and development is subjected to a heat treatment to effect thermal curing.Type: GrantFiled: February 23, 1988Date of Patent: February 26, 1991Assignee: Toyko Ohka Kogyo Co. Ltd.Inventors: Kenji Tazawa, Akira Iwata, Tomoki Horigome, Hiroyuki Tohda
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Patent number: 4975472Abstract: A curable organopolysiloxane composition having condensation-curing properties and ultraviolet-curing properties, comprising (A) a diorganopolysiloxane having a viscosity of 50 to 200,000 cSt, both ends of each molecule thereof being blocked with a silanol group, (B) a silane compound, (C) an (alkyl)acrylic acid derivative, (D) a catalyst for condensation and (E) a sensitizer.Type: GrantFiled: May 5, 1989Date of Patent: December 4, 1990Assignee: Toshiba Silicone Co., Ltd.Inventors: Tsuneo Motegi, Yasuji Matsumoto