Processes Of Preparing A Solid Polymer From Heterocyclic Nitrogen Monomers; Or Compositions Therefore, E.g., Carbazole, Etc. Patents (Class 522/167)
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Patent number: 7649027Abstract: A process for producing a polymer, characterized in that a polymer having juts is produced by carrying out photopolymerization of at least one photopolymerizable polymerization precursor containing a photocurable compound having two or more unsaturated bonds by irradiation with active energy ray, optionally in the presence of at least one additive component for adding a polymer function, in a supercritical fluid or subcritical fluid; and a polymer having juts of 10 nm or more height, which height is 0.1-fold or more of the diameter of the juts, produced by the above process.Type: GrantFiled: December 24, 2004Date of Patent: January 19, 2010Assignee: Kansai Paint Co., Ltd.Inventor: Genji Imai
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Publication number: 20100009290Abstract: Photosensitive polybenzoxazine compositions include a photosensitive additive such as an o-diazoquinone and a polymer comprising a repeating unit represented by the following formula (I) wherein R1 comprises an aliphatic group, an alicyclic group, an aromatic group, a heterocyclic group, or combinations thereof, R2 comprises an aliphatic group, an alicyclic group, an aromatic group, a heterocyclic group, or combinations thereof, R4 comprises a hydrophilic group, a hydrophilic group protected by an acid-cleavable group, a hydrophilic group protected by a base-cleavable group, a cross-linkable group, or combinations thereof, and i represents an integer of 1 or more. The photosensitive compositions may be formed by combining a precursor polymer with a photosensitive additive and a solvent, patterning the precursor polymer, and heating the precursor polymer at a thermal processing temperature in a range of from about 180° C. to about 300° C. to convert the precursor polymer into the final polymer.Type: ApplicationFiled: December 3, 2006Publication date: January 14, 2010Applicants: CENTRAL GLASS CO., LTD., GEORGIA TECH RESEARCH CORPORATION, Office of Technology LicensingInventors: Kazuhiro Yamanaka, Clifford Henderson, Michael Romeo, Kazuhiko Maeda
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Patent number: 7632875Abstract: The present invention provides novel hybrid polymer useful for alignment layers for inducing alignment of a liquid crystal medium. Hybrid polymers of this invention are prepared from at least one component selected from the group consisting of monomer, oligomer and polymer within the class of polyimides, poly(amic acids) and esters thereof and at least one component selected from the group consisting of addition monomer and functionalized addition polymer wherein the two components are covalently bonded to form a copolymer. The invention further describes liquid crystal optical elements such as all liquid crystal display products or modes, liquid crystal devices and liquid crystal optical films comprising the novel hybrid polymer alignment layers.Type: GrantFiled: July 18, 2005Date of Patent: December 15, 2009Assignee: Elsicon, Inc.Inventors: Wayne M. Gibbons, Michael G. P. Reppy, Patricia A. Rose, Hanxing Zheng
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Publication number: 20090286001Abstract: An active energy radiation polymerizable substance is disclosed which is represented by the following general formula (I): wherein Z is a dihydric to hexahydric polyol residue, and A, B and D are groups represented by the following formulas (II) to (IV), respectively: (II), (III), and (IV).Type: ApplicationFiled: September 28, 2006Publication date: November 19, 2009Applicant: CANON KABUSHIKI KAISHAInventors: Tsuyoshi Kanke, Yutaka Kurabayashi, Kenji Shinjo, Hiromitsu Kishi
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Publication number: 20090253823Abstract: The present invention provides a thermosetting and photocurable coating composition obtained by incorporating a copolymer of a maleimide group-containing monomer with other monomer(s) or a specific maleimide compound into a composition comprising a hydroxyl-containing resin and a curing agent and optionally containing an unsaturated compound; and a method of forming a coating film using the coating composition.Type: ApplicationFiled: June 10, 2009Publication date: October 8, 2009Applicant: KANSAI PAINT CO., LTD.Inventors: Kazutoshi Sugiura, Hiromi Katoh, Yoshizumi Matsuno
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Publication number: 20090214794Abstract: Crosslinked polymeric materials are described that contain pendant amine capture groups. The amine capture groups include N-sulfonyldicarboximide groups that can react with amine-containing materials by a ring opening reaction. Reaction mixtures used to prepare the crosslinked polymeric materials, articles containing the crosslinked polymeric materials, methods of making articles, and methods of immobilizing an amine-containing material are also described.Type: ApplicationFiled: May 1, 2009Publication date: August 27, 2009Inventors: Rahul R. Shah, Karl E. Benson, Charles M. Leir, George G.I. Moore
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Publication number: 20090215996Abstract: Crosslinked polymeric materials are described that contain pendant amine capture groups. The amine capture groups include N-sulfonyldicarboximide groups that can react with amine-containing materials by a ring opening reaction. Reaction mixtures used to prepare the crosslinked polymeric materials, articles containing the crosslinked polymeric materials, methods of making articles, and methods of immobilizing an amine-containing material are also described.Type: ApplicationFiled: April 30, 2009Publication date: August 27, 2009Inventors: George G.I. Moore, Rahul R. Shah, Karl E. Benson, Charles M. Leir
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Patent number: 7572840Abstract: The present invention relates to a method for manufacturing super-absorbent polymers, comprising providing a reaction mixture which comprises at least a first monomer and a second monomer and a radical-forming polymerization initiator, and subsequently causing the monomers to polymerize under the influence of an energy source, wherein radical formation occurs and the polymerization is started, wherein the first monomer is neutralized with an inorganic base before polymerization, in addition to the manufactured super-absorbent polymers. The invention further relates to a method for applying a coating of super-absorbent polymers to a carrier.Type: GrantFiled: October 5, 2004Date of Patent: August 11, 2009Assignee: Vepetex B.V.Inventors: Paul Kleijn, Herman Reezigt
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Publication number: 20090181324Abstract: The present invention relates to an isocyanate-modified photosensitive polyimide. The photosensitive polyimide of the invention possesses excellent heat resistance, chemistry resistance, and flexibility, and can be used as a liquid photo resist or dry film resist, or used in a solder resist, coverlay film, or printed wiring board.Type: ApplicationFiled: January 16, 2009Publication date: July 16, 2009Inventors: MENG-YEN CHOU, Chuan Zong Lee
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Patent number: 7544721Abstract: A photosensitive adhesive composition of the polymerizable resin type, the hardening of which occurs by polymerization and/or reticulation, includes:—initiators for at least one chain polymerization reaction to guarantee the hardening of the composition and a sufficient quantity of at least one bifunctional monomer, including a photolabile center with at least one photolabile entity and at least two polymerizable units, connected by covalent skeletons to the photolabile center and located away from the cleavage sites of the photolabile center, such that the composition loses the integrity and adhesivity thereof under the influence of a reticulating radiation causing the cleavage of the photolabile sites. The composition is particularly of application in dentistry.Type: GrantFiled: April 2, 2003Date of Patent: June 9, 2009Assignee: Produits Dentaires Pierre RollandInventors: Vincent Gaud, Yves Gnanou, Jean-Pierre Desvergne, Francis Dieras, Alexandrine Roubiere
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Publication number: 20090131549Abstract: A process for preparing polyvinylpyrrolidones by free-radically initiated polymerization in the presence of an initiator found, which comprises performing the polymerization as a spray or droplet polymerization.Type: ApplicationFiled: November 14, 2008Publication date: May 21, 2009Applicant: BASF SEInventors: Dennis Losch, Ralf Widmaier, Volker Seidl, Hans-Ulrich Moritz, Karim Asif, Silke Biedasek
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Publication number: 20090111905Abstract: The present invention relates to processes for forming random prepolymers comprising comprising at least one (meth)acrylate component and at least one (meth)acrylamide. More specifically, the present invention relates to processes comprising providing a first reaction mixture comprising at least one (meth)acrylate component having a first reaction rate constant, k1; adding to said first reaction mixture, under reaction conditions comprising a reaction time, at least one (meth)acrylamide component having a second reaction rate constant k2 which is less than about 0.5 k1, wherein at least one of said (meth)acrylate component and said (meth)acrylamide component comprise silicone and at least one of said (meth)acrylate component and said (meth)acrylamide component comprise at least one hydrophilic component; and said at least one (meth)acrylamide component is added gradually over a reaction time and under prepolymer reaction conditions to form a prepolymer.Type: ApplicationFiled: October 6, 2008Publication date: April 30, 2009Inventors: Ture Kindt-Larsen, Holger Spanggaard, Bent Magnusson, Helene Rossignol, Jens-Erik Soerensen, Joe M. Wood
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Publication number: 20090088492Abstract: The invention provides an ink composition including (a) a tertiary amine compound having a cationically polymerizable group, (b) a photo-acid generator, and (c) a cationically polymerizable compound. According to the invention, an ink composition in which generation of tackiness on the surface of an image formed is effectively suppressed while maintaining curing sensitivity to irradiation with a radiation ray, blocking is not generated even in the case of laminating prints after image formation, and ejecting property in applying to an inkjet apparatus is good can be provided.Type: ApplicationFiled: September 9, 2008Publication date: April 2, 2009Applicant: FUJIFILM CORPORATIONInventor: Kazuhiro YOKOI
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Publication number: 20090087575Abstract: The invention provides an ink composition including (i) a sensitizing dye having a polymerizable group as a substituent, (ii) a polymerization initiator and (iii) a polymerizable compound having an ethylenically unsaturated bond. The invention also provides an inkjet recording method and a polymerizable compound useful as a sensitizing dye. The sensitizing dye (i) is represented by Formula (I) or (II) below. In the formulae, X represents O, S, NRa, or NRb, n1 and n2 each represent 0 or 1, Ra, Rb, and R1 to R18 each represent a hydrogen atom or a monovalent substituent, and one polymerizable group is present in the molecule.Type: ApplicationFiled: September 9, 2008Publication date: April 2, 2009Applicant: FUJIFILM CORPORATIONInventors: Tokihiko MATSUMURA, Tsutomu Umebayashi
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Publication number: 20090088490Abstract: A simultaneous two-photon absorption three-dimensional recording material includes at least one kind of dye having at least one polymerizable group.Type: ApplicationFiled: September 26, 2008Publication date: April 2, 2009Applicant: FUJIFILM CORPORATIONInventors: Masaharu AKIBA, Hiroo TAKIZAWA
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Patent number: 7491752Abstract: Photoreactive dendrimers comprising a core portion, branching units and terminal groups, wherein at least one terminal group and/or branching unit is a photoreactive group and wherein the photo reactive groups include preferably cinnamates, coumarins, benzylidenephthalimidines, benzylideneacetophenones, diphenylacetylenes stilbazoles, uracyl, quinolinone, maleinimides, or cinnamylidene acetic acid derivatives and are able to undergo photocyclization, in particular [2+2]-photocyclization.Type: GrantFiled: July 15, 2002Date of Patent: February 17, 2009Assignee: Rolic AGInventors: Guy Marck, Hubert Seiberle, Mohammed Ibn-Elhaj
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Publication number: 20090041991Abstract: Provided is a method for manufacturing inkjet system ultraviolet curable inks which are improved in formability, adhesiveness and tackiness by selecting a combination of a monofunctional radical polymerization monomer as a major component with other polyfunctional radical polymerization oligomers and/or monofunctional radical polymerization monomers.Type: ApplicationFiled: May 22, 2006Publication date: February 12, 2009Applicant: TEIKOKU INK MFG CO., LTD.Inventors: Kenji Takano, Takuya Torihata, Jun Kimura
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Publication number: 20090023831Abstract: The present invention relates to a curable composition having high adhesiveness and transparency, comprising a thiol compound containing two or more groups represented by formula (1): wherein the symbols in the formula have the meanings as described in the specification; and an urethane compound containing an ethylenically unsaturated double bond represented by formula (2): wherein the symbols in the formula have the meanings as described in the specification.Type: ApplicationFiled: January 25, 2007Publication date: January 22, 2009Inventors: Hideo Miyata, Katsuro Urakawa, Haruhiko Ikeda, Yotaro Hattori
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Publication number: 20090009061Abstract: The object of the present invention is to provide a composition for conductive materials from which a conductive layer having a high carrier transport ability can be made, a conductive material formed of the composition and having a high carrier transport ability, a conductive layer formed using the conductive material as a main material, an electronic device provided with the conductive layer and having high reliability, and electronic equipment provided with the electronic device.Type: ApplicationFiled: July 27, 2005Publication date: January 8, 2009Inventors: Yuji Shinohara, Koichi Terao, Takashi Shinohara
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Publication number: 20080286484Abstract: An ink composition is provided that includes (A) an N-vinyllactam, (B) another polymerizable compound, (C) a polymerization initiator, and (D) a basic compound, the content of the N-vinyllactam (A) being less than 15 wt % of the total weight of the ink composition. There is also provided an inkjet recording method that includes (a1) a step of discharging the ink composition onto a recording medium and (b1) a step of curing the ink composition by irradiating the discharged ink composition with actinic radiation. There is also provided a printed material recorded by the inkjet recording method.Type: ApplicationFiled: February 15, 2008Publication date: November 20, 2008Applicant: FUJIFILM CORPORATIONInventors: Kaoru TOJO, Hironori OHNISHI
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Patent number: 7449497Abstract: Monomers (e.g. thinphenes) are caused to polymerise by mixing them with an oxidising agent (and generally a solvent comprising water) and irradiating the mixture with light (visible or UV). Polymer properties can be varied by doping or chemical modification. Uses include sensor elements for assays and electrical components such as electrodes.Type: GrantFiled: March 24, 2003Date of Patent: November 11, 2008Assignee: Cranfield UniversityInventors: Sergey Anatoliyovich Piletsky, Olena Volodimirivna Piletska, Anthony Peter Francis Turner, Khalku Karim, Beining Chen
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Publication number: 20080274201Abstract: This invention provides novel methods for the formation of biocompatible membranes around biological materials using photopolymerization of water soluble molecules. The membranes can be used as a covering to encapsulate biological materials or biomedical devices, as a “glue” to cause more than one biological substance to adhere together, or as carriers for biologically active species. Several methods for forming these membranes are provided. Each of these methods utilizes a polymerization system containing water-soluble macromers, species, which are at once polymers and macromolecules capable of further polymerization. The macromers are polymerized using a photoinitiator (such as a dye), optionally a cocatalyst, optionally an accelerator, and radiation in the form of visible or long wavelength UV light. The reaction occurs either by suspension polymerization or by interfacial polymerization.Type: ApplicationFiled: July 11, 2008Publication date: November 6, 2008Applicant: Board of Regents, The University of Texas SystemInventors: Jeffrey A. Hubbell, Chandrashekhar P. Pathak, Amarpreet S. Sawhney, Neil P. Desai, Syed F.A. Hossainy
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Publication number: 20080257493Abstract: The invention is based on the discovery that certain well-defined compounds derived from pentacyclopentadecane dimethanol are useful components in adhesive formulations. In particular, the invention compounds described herein provide high Tg values and low shrinkage. Compounds of the invention are useful as adhesives for use in the semiconductor packaging industry.Type: ApplicationFiled: April 9, 2008Publication date: October 23, 2008Inventor: Stephen M. Dershem
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Patent number: 7423072Abstract: Low viscosity, radiation curable fluid formulations that can be used advantageously as radiation curable, inks. The formulations are easily prepared for use in ink jet systems. The viscosity of the compositions is low enough so that conventional solvent is not required in order to satisfy the requisite low ink jet viscosity specifications. After curing, the compositions form durable, weatherable, abrasion resistant, printed images on a wide variety of porous and nonporous substrates. The formulations are very suitable for outdoor printing applications, especially for printing outdoor graphics onto a variety of surfaces, including vinyl or other polymer films commonly used for signage, retroreflective signage or other retroreflective items.Type: GrantFiled: November 7, 2001Date of Patent: September 9, 2008Assignee: 3M Innovative Properties CompanyInventors: Jennifer L. Lee, Ronald K. Thery, Caroline M. Ylitalo, Richard L. Severance, Dong Wu, Bruce A. Nerad, Verna J. LeMire, James G. Carlson, William J. Hunt
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Publication number: 20080143958Abstract: The invention provide a new lens curing method for making hydrogel contact lenses. The new lens curing method is based on actinically-induced step-growth polymerization. The invention also provides hydrogel contact lenses prepared from the method of the invention and fluid compositions for making hydrogel contact lenses based on the new lens curing method. In addition, the invention provide prepolymers capable of undergoing actinically-induced step-growth polymerization to form hydrogel contact lenses.Type: ApplicationFiled: December 12, 2007Publication date: June 19, 2008Inventors: Arturo Norberto Medina, Robert Scott, Dawn Alison Smith
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Publication number: 20080132600Abstract: The invention relates to novel N-substituted imides and polymerizable compositions comprising these N-substituted imides. The invention further relates to the use of N-substituted imides as polymerization initiators.Type: ApplicationFiled: October 31, 2005Publication date: June 5, 2008Inventors: Peter Nesvadba, Johannes Benkhoff, Lucienne Bugnon, Karin Powell, Tunja Jung
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Patent number: 7376328Abstract: A photosensitive resin composition for optical waveguide formation, comprising: (A) a di(meth)acrylate having the structure represented by the following general formula (1): (wherein R1 is —(OCH2CH2)m—, —(OCH(CH3)CH2)m—, or —OCH2CH(OH)CH2—; X is —C(CH3)2—, —CH2—, —O—, or —SO2—; Y is a hydrogen atom or a halogen atom; m is an integer of 0 to 4); (B) a mono(meth)acrylate having the structure represented by the following general formula (2): (wherein R2 is —(OCH2CH2)p—, —(OCH(CH3)CH2)p—, or —OCH2CH(OH)CH2—; Y is a hydrogen atom, a halogen atom, Ph-C(CH3)2—, Ph-, or an alkyl group having 1 to 20 carbon atoms; p is an integer of 0 to 4; Ph is a phenyl group); and (C) a photoradical polymerization initiator. The composition has excellent patterning ability, refractive index, heat resistance, and transmission characteristic.Type: GrantFiled: September 30, 2003Date of Patent: May 20, 2008Assignee: JSR CorporationInventors: Hideaki Takase, Yuuichi Eriyama
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Patent number: 7267846Abstract: The present invention recognizes that lenses, such as contact lenses, can be pigmented using an ink that includes oligomers, polymers or polymerizable monomers. The ink can be used to make images on or within the lens. Images made using these inks are may be digital or analogue and can be used in a variety of printing methods, including ink-jet printing.Type: GrantFiled: October 6, 2004Date of Patent: September 11, 2007Inventors: Praful Doshi, James Edward Fox, Philip Gareth Bentley, Jagvi Ramesh Patel, Chidambar L. Kulkarni, Stephen D. Halbe, Hananiah J. Dalton
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Patent number: 7244773Abstract: Disclosed is an actinic ray curable ink-jet ink comprising a cationically polymerizable compound including a cationically polymerizable epoxy compound and a cationically polymerizable oxetane ring-containing compound, wherein the actinic ray curable ink-jet ink contains the cationically polymerizable epoxy compound in an amount of from 35 to 95% by weight based on the total amount of cationically polymerizable compound, the cationically polymerizable epoxy compound having a solubility parameter (sp value) of from 10 to 20, and the cationically polymerizable oxetane ring-containing compound having a solubility parameter (sp value) of from 5 to 8.0, and wherein the actinic ray curable ink-jet ink has a viscosity at 25° C. of 5 to 50 mPa·s.Type: GrantFiled: November 30, 2005Date of Patent: July 17, 2007Assignee: Konica Minolta Medical & Graphic, Inc.Inventor: Nobumasa Sasa
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Patent number: 7235591Abstract: The present invention relates to an ultraviolet-curable coating composition comprising: (A) an ultraviolet curable four or more functional groups-containing polyfunctional (meth)acrylate having four or more (meth)acryloyl groups in the molecule and a number average molecular weight of 300 to 2,000, (B) a lactone-modified polymer of polyhydric alcohol mono(meth)acrylate containing 20 to 60 percents by weight of ?-caprolactone ring-opening addition product and having a hydroxyl value derived from the lactone modification of 100 to 180 mgKOH/g, and/or a lactone-modified polyester resin containing 10 to 50 percents by weight of lactone ring-opening addition product and having a hydroxyl value of 50 to 180 mgKOH/g, (C) a non-yellow polyisocyanate compound and/or an amino resin, (D) a light stabilizer and, (E) a photopolymerization initiator, wherein a weight ratio of component (A) against to a total weight of component Components (B) and (C) is 10:90 to 50:50, a weight ratio of component (B) against to componentType: GrantFiled: March 20, 2003Date of Patent: June 26, 2007Assignee: BASF Coatings Japan Ltd.Inventors: Takeshi Tsunoda, Shinji Mitsumune
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Patent number: 7169828Abstract: The invention relates to a method of manufacturing a replica, which method comprises the provision of a polymerizable resin composition between a front mold having a pre-shaped surface and a back mold having a pre-shaped surface, carrying out a curing treatment and removing the replica thus manufactured from the molds. The invention further relates to a replica obtained by carrying out a UV light-initiated cationic polymerization.Type: GrantFiled: December 16, 2002Date of Patent: January 30, 2007Assignee: Koninklijke Philips Electronics N.V.Inventors: Johan George Kloosterboer, Fredericus Johannes Touwslager, Emile Johannes Karel Verstegen, Hendrik Roelof Stapert
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Patent number: 7166239Abstract: There is provided a process for forming a light emitting polymer comprising photopolymerization of a reactive mesogen having an endgroup which is susceptible to photopolymerization e.g. by a radical polymerization process. Also provided are methods for using the light emitter in displays, backlights, electronic apparatus and security viewers.Type: GrantFiled: June 1, 2004Date of Patent: January 23, 2007Assignee: University of HullInventors: Mary O'Neill, Stephen Malcolm Kelly, Adam Edward Alexander Contoret, Gary James Richards
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Patent number: 7144929Abstract: An active energy ray curable ink-jet ink comprising an epoxy compound containing and alicyclic epoxy group and an epoxyfied fatty acid ester group, and a printed material used therewith.Type: GrantFiled: February 17, 2004Date of Patent: December 5, 2006Assignee: Konica Minolta Holdings, Inc.Inventor: Nobumasa Sasa
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Patent number: 7084186Abstract: Crosslinkable resin compositions that are cured easily by irradiation with active energy beams and particularly cured quickly with ultraviolet ray are provided, which comprises a polymer containing a maleimido group and an ethylenically unsaturated group. The composition may be an aqueous composition. They provide cured films which are excellent in durability, free from coloring and odors, and also excellent in abrasion resistance, adhesion to substrates, surface smoothness, and chemical resistance.Type: GrantFiled: June 19, 2001Date of Patent: August 1, 2006Assignee: Toagosei Co., Ltd.Inventors: Eiichi Okazaki, Hideo Matsuzaki, Keiji Maeda, Kuniniko Mizotani
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Patent number: 7081486Abstract: A method of producing a polymer according to the present invention is characterized by comprising a step of photopolymerizing one or more photopolymerizable polymerization precursors by irradiation with an activation energy ray in a supercritical fluid or in a subcritical fluid.Type: GrantFiled: December 26, 2003Date of Patent: July 25, 2006Assignees: Shizuoka University, Kansai Paint Co., Ltd.Inventors: Genji Imai, Takeshi Sako
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Patent number: 7067566Abstract: Triazine ring based polymers for photoinduced liquid crystal alignment introduces photoactive groups for inducing, reinforcing, improving and preserving liquid crystal alignment, for example photoreactor such as cinnamate, coumarin, chalcone and maleimide, as a chain to have at least one photoactive group. One of the photoactive groups can experience Fries rearrangement which induces liquid crystal alignment, and other groups can experience photodimerization, photoisomerization, photocrosslinkng or photodegradation to reinforce, change or preserve the generated alignment.Type: GrantFiled: November 11, 2002Date of Patent: June 27, 2006Assignee: LG Cable Ltd.Inventors: Dongcheon Shin, Jinyool Kim, Kyusoon Park, Taemin Kim
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Patent number: 7045558Abstract: A radiation curable composition comprises a heterocyclic acrylate or heterocyclic methacrylate. The composition is curable to make an optical management article such as an optical management coating on a substrate. A method of making an optical management article, comprises forming a radiation curable composition comprising the heterocyclic acrylate or heterocyclic methacrylate on a substrate and curing the composition to form the optical management article.Type: GrantFiled: August 29, 2003Date of Patent: May 16, 2006Assignee: General Electric CompanyInventors: Bret Ja Chisholm, James Edward Pickett
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Patent number: 7037953Abstract: A method for producing a solvent resistant, low-extractable, film from an actinic radiation curable homogenous aqueous composition containing a water soluble compound, having at least one alpha, beta-ethylenically unsaturated radiation polymerizable double bond, and water as essential components.Type: GrantFiled: December 27, 2002Date of Patent: May 2, 2006Assignee: Sun Chemical CorporationInventors: Subhankar Chatterjee, Mikhail Laksin, David Biro, Jean Dominique Turgis
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Patent number: 6974855Abstract: The novel polyimides of this invention are derived from Diels-Alder cyclopolymerization of photochemically generated bisdienes with dienophiles, such as bismaleimides, trismaleimides and mixtures thereof with maleimide end-caps. Irradiation of one or more diketones produces two distinct hydroxy o-quinodimethane (photoenol) intermediates. These intermediates are trapped via Diels-Alder cycloaddition with appropriate dienophiles, e.g., bismaleimide and/or trismaleimides to give the corresponding polyimides in quantitative yields. When bismaleimides, trismaleimides or mixtures thereof with maleimide end-caps are used as the dienophile, the resulting polyimides have glass transition temperatures (Tg) as high as 300° C. Polyimide films can be prepared by ultraviolet irradiation of high solids content varnishes of the monomers in a small amount of solvent, e.g., cyclohexanone, dimethyl formamide, N-methylpyrollidone and the like.Type: GrantFiled: July 8, 2003Date of Patent: December 13, 2005Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space AdministrationInventor: Michael A. Meador
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Patent number: 6933325Abstract: A high refractive index, curable, synthetic resin composition comprising a core resin composition composed of a mixture of ethylenically unsaturated compounds, and an initiation system containing both photo and thermal initiators, particularly a photochromic resin composition which further includes at least one photochromic dye. Also a curing process, which includes a combination of multi-step radiation curing and thermal annealing. Articles produced of cured composition exhibit superior physical and, in appropriate cases, photochromic properties and can be easily mass produced on a commercial scale due to short processing time and use of readily available chemicals.Type: GrantFiled: October 11, 2002Date of Patent: August 23, 2005Assignee: Rodenstock GmbHInventors: Qiang Zheng, Donald Scott Nelson, Charles William Carper, Jr., Manfred Melzig, Herbert Schuster, Herbert Zinner
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Patent number: 6916855Abstract: The invention relates to a radiation curable composition comprising radiation curable components wherein at least one component of the radiation curable composition contains a functional group which, when attached to an acrylate group has a calculated Boltzmann average dipole moment of higher than 3.5 Debye. The invention further relates to radiation curable optical fiber coating compositions having a high dielectric constant.Type: GrantFiled: November 21, 2001Date of Patent: July 12, 2005Assignee: DSM IP Assets B.V.Inventors: Johan F. G. A. Jansen, Aylvin J. A. A. Dias, Marko Dorschu, Betty B Coussens
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Patent number: 6911227Abstract: This invention provides novel methods for the formation of biocompatible membranes around biological materials using photopolymerization of water soluble molecules. The membranes can be used as a covering to encapsulate biological materials or biomedical devices, as a “glue” to cause more than one biological substance to adhere together, or as carriers for biologically active species. Several methods for forming these membranes are provided. Each of these methods utilizes a polymerization system containing water-soluble macromers, species, which are at once polymers and macromolecules capable of further polymerization. The macromers are polymerized using a photoinitiator (such as a dye), optionally a cocatalyst, optionally an accelerator, and radiation in the form of visible or long wavelength UV light. The reaction occurs either by suspension polymerization or by interfacial polymerization.Type: GrantFiled: March 19, 2001Date of Patent: June 28, 2005Assignee: Novocell, Inc.Inventors: Jeffrey A. Hubbell, Chandrashekhar P. Pathak, Amarpreet S. Sawhney, Neil P. Desai, Syed F. A. Hossainy
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Patent number: 6881765Abstract: A radiation curable composition is provided which includes a polyorganosiloxane containing at least two ring-opening polymerizable cyclic ether groups in the molecule and having 10 to 1,000 silicon atoms as a radiation reactive polymer; a monofunctional oxetane monomer containing in the molecule one oxetanyl group and a straight- or branched-chain alkyl group having 6 to 18 carbons as a diluent; and a cationic polymerization initiator. There is also provided a process for producing a separator by coating a surface of a substrate with the above radiation curable composition and then curing the composition by exposure to radiation. A separator obtained by the above process is also provided.Type: GrantFiled: March 10, 2003Date of Patent: April 19, 2005Assignee: Toagosei Co., Ltd.Inventor: Hiroshi Sasaki
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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: 6844373Abstract: A radiation-curable composition having a reduced surface energy and including a reactive dye containing at least one radiation-curable substituent and at least one fluorine-containing substituent. The reactive dye may include any anthraquinone, methine, azo, azine, or xanthene dye adapted to contain at least one radiation-curable substituent and at least one fluorine-containing substituent. The radiation-curable substituent may include (meth)acrylate, styrene, vinyl ether, vinyl ester, N-substituted acrylamide, N-vinyl amide, maleate ester, and fumarate ester.Type: GrantFiled: May 28, 2002Date of Patent: January 18, 2005Assignee: AlcatelInventor: Michael B. Purvis
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Publication number: 20040266905Abstract: A curable composition comprisingType: ApplicationFiled: March 22, 2004Publication date: December 30, 2004Inventors: Hubert Baumgart, Sandra Hasse, Helmut Kleine Beckmann, Vincent Cook
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Patent number: 6818725Abstract: The invention relates to dental materials which contain an iminooxadiazine dione derivative with at least two free isocyanate groups and a hydroxyl compound with at least two OH groups.Type: GrantFiled: February 10, 2003Date of Patent: November 16, 2004Assignee: Ivoclar Vivadent AGInventors: Martin Klare, Andreas Radl, Volker Rheinberger
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Patent number: 6767631Abstract: The present invention aims to provide an adhesive composition showing high adhesion and cohesion as well as good heat resistance. Adhesive compositions of the present invention include an imide (meth)acrylate, a monomer having a glass transition temperature of −50° C. or less when it is homopolymerized, and a photoinitiator, wherein the content of the imide (meth)acrylate is 1-20 parts by weight per 100 parts by weight of the monomer.Type: GrantFiled: January 22, 2002Date of Patent: July 27, 2004Assignee: Sony Chemicals Corp.Inventors: Manabu Ono, Toshifumi Kobayashi
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Patent number: 6765037Abstract: A free radical-curable epoxy composition comprises epoxy resin and a copolymerizable material including a monomer having amide, acrylamide, or hydroxyl functionality, and is advantageously devoid of any cationic catalyst ingredient.Type: GrantFiled: November 28, 2001Date of Patent: July 20, 2004Assignee: Dymax CorporationInventor: John R. Arnold
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Patent number: 6759104Abstract: A photocurable composition, wherein a small amount of an alicyclic skeleton-containing mono(meth) acrylate is incorporated in a combination of an alicyclic skeleton-containing bis(meth)acrylate and a mercapto compound, a cured product obtained by the copolymerization thereof, and a process for producing the cured product.Type: GrantFiled: September 30, 2002Date of Patent: July 6, 2004Assignee: Mitsubishi Chemical CorporationInventors: Seiichiro Hayakawa, Akihiko Sakai, Akira Esaki, Yutaka Tamura