Monomer Or Polymer Contains Initiating Group Patents (Class 522/904)

Cross-Reference Art Collections

Benzophenone group (Class 522/905)
  • Patent number: 9740096
    Abstract: In microelectronic applications, it is often desired to deposit and pattern a permanent dielectric film in order to electrically and mechanically isolate components. Photo-patternable dielectrics are attractive for these uses because of their reduced time and cost requirements. These permanent dielectrics should be high-speed, positive-tone, and aqueous-developable. This type of patternability may be achieved by using a chemically amplified deprotection reaction of tert-butoxycarbonate or tert-butyl acrylate catalyzed by a photo-inducible acid.
    Type: Grant
    Filed: June 28, 2013
    Date of Patent: August 22, 2017
    Assignee: Georgia Tech Research Corporation
    Inventors: Brennen Karl Mueller, Paul A. Kohl
  • Patent number: 9005874
    Abstract: There are provided a novel compound, a polymeric compound, a resist composition, an acid generator and a method of forming a resist pattern the compound represented by general formula (1-1): wherein each of R1 and R3 independently represents a single bond or a divalent linking group; A represents a divalent linking group; each of R2 and R4 independently represents a hydroxyl group, a hydrocarbon group which may have a substituent, or a group represented by general formula (1-an1), (1-an2) or (1-an3), provided that at least one of R2 and R4 represents a group represented by general formula (1-an1), (1-an2) or (1-an3); and n0 is preferably 0 or 1, and wherein Y1 represents a single bond or —SO2—; R5 represents a linear or branched monovalent hydrocarbon group of 1 to 10 carbon atoms, cyclic monovalent hydrocarbon group of 3 to 20 carbon atoms or monovalent hydrocarbon group of 3 to 20 carbon atoms having a cyclic partial structure which may be substituted with a fluorine atom; and M+ represents an organic ca
    Type: Grant
    Filed: April 18, 2012
    Date of Patent: April 14, 2015
    Assignee: Tokyo Ohka Kogyo Co., Ltd.
    Inventors: Yoshitaka Komuro, Yoshiyuki Utsumi, Akiya Kawaue, Masatoshi Arai
  • Patent number: 8987386
    Abstract: A method of producing a polymeric compound containing a structural unit that decomposes upon exposure to generate an acid, the method including: synthesizing a precursor polymer by polymerizing a water-soluble monomer having an anionic group, washing the precursor polymer with water, and subsequently subjecting the precursor polymer to a salt exchange with an organic cation. Also, a polymeric compound produced using the method of producing a polymeric compound, and a method of forming a resist pattern using the resist composition.
    Type: Grant
    Filed: June 8, 2012
    Date of Patent: March 24, 2015
    Assignee: Tokyo Ohka Kogyo Co., Ltd.
    Inventors: Yoshiyuki Utsumi, Takahiro Dazai, Masatoshi Arai, Takaaki Kaiho
  • Patent number: 8940811
    Abstract: A free radical curable liquid for inkjet printing of food packaging materials includes no initiator or otherwise one or more initiators selected from the group consisting of non-polymeric di- or multifunctional initiators, oligomeric initiators, polymeric initiators, and polymerizable initiators; wherein the polymerizable composition of the liquid consists of: a) 25-100 wt % of one or more polymerizable compounds A having at least one acrylate group G1 and at least one second ethylenically unsaturated polymerizable functional group G2 different from the group G1; b) 0-55 wt % of one or more polymerizable compounds B selected from the group consisting of monofunctional acrylates and difunctional acrylates; and c) 0-55 wt % of one or more polymerizable compounds C selected from the group consisting of trifunctional acrylates, tetrafunctional acrylates, pentafunctional acrylates and hexafunctional acrylates.
    Type: Grant
    Filed: April 25, 2013
    Date of Patent: January 27, 2015
    Assignee: Agfa Graphics NV
    Inventors: Roland Claes, Johan Loccufier
  • Patent number: 8933141
    Abstract: An ink composition which is used for active energy ray-curable inkjet printing, has excellent curability or adhesiveness to multiple base materials while having low viscosity, and exhibits excellent non-yellowing properties of the printed matter is provided. The composition comprises a polymerizable monomer (A) and photopolymerization initiators (B), the polymerizable monomer comprising 2-(2-vinyloxyethoxy)ethyl acrylate (A-1), and the photopolymerization initiators comprising oligo(2-hydroxy-2-methyl-1-(4-(1-methylvinyl)phenyl)propanone) (B-1) and other initiator (B-2).
    Type: Grant
    Filed: March 29, 2012
    Date of Patent: January 13, 2015
    Assignees: Toyo Ink SC Holdings Co., Ltd., Toyo Ink Co., Ltd.
    Inventors: Norio Suzuki, Kazuhiro Jonai, Mayuko Okamoto, Yuji Kameyama, Yohei Konda
  • Patent number: 8796350
    Abstract: An ultraviolet (UV) crosslinkable acrylic pressure sensitive adhesive comprises an acrylic copolymer and a cationic photoinitiator. The acrylic copolymer comprises pendant reactive functional groups. The pressure sensitive adhesive formed from the acrylic copolymer with the pendant reactive functional groups result in high green strength and/or high temperature holding strength of the adhesive.
    Type: Grant
    Filed: September 7, 2012
    Date of Patent: August 5, 2014
    Assignee: Henkel US IP LLC
    Inventors: Yuxia Liu, Peter Palasz, Charles W. Paul, Paul B. Foreman
  • Patent number: 8785515
    Abstract: Polycyclic aromatic compounds of formula (I) having at least two conjugated aromatic rings at least one of which has a substituent comprising a cyclic carbonate group can be used as sensitizers for cationic photoinitiators, especially iodonium compounds, and may also function as monomers in cationically initiated radiation curable compositions, especially coating compositions, such as printing inks and varnishes.
    Type: Grant
    Filed: May 9, 2008
    Date of Patent: July 22, 2014
    Assignee: Sun Chemical Corporation
    Inventors: Shaun Lawrence Herlihy, Robert Stephen Davidson
  • Patent number: 8629197
    Abstract: A chemically patterned modified hydrogel formed from a modified hydrogel is provided. The hydrogel is conjugated with a multiphoton photocleavable molecule. The molecule has a multiphoton-labile protective group and a protected group. The protective group is cleavable upon multiphoton excitation to deprotect the protected group, without substantial polymerization of the hydrogel. The chemically patterned modified hydrogel is formed by exposing the modified hydrogel to multiphoton excitation to deprotect a portion of the protected groups.
    Type: Grant
    Filed: April 7, 2008
    Date of Patent: January 14, 2014
    Inventors: Molly Shoichet, Jordan Wosnick, Ryan Wylie
  • Patent number: 8568873
    Abstract: Provided are a pressure-sensitive adhesive for polarizing plates which can apply a polarizing plate on a liquid crystal cell with good adhesion and has the characteristic that a liquid crystal display device obtained therefrom is less liable to cause light leakage even under the environment of high temperature and high humidity and which has a removability and a polarizing plate with the above pressure-sensitive adhesive and a production process for the same. The pressure-sensitive adhesive for polarizing plates is prepared by irradiating a pressure-sensitive adhesive material comprising (A) an acrylic base polymer comprising a monomer having a carboxyl group in a monomer composition ratio of 0.5 mass % or less and (B) an active energy beam-curable compound with an active energy beam and it has a storage elastic modulus (G?) of 0.3 MPa or more at 23° C.
    Type: Grant
    Filed: December 7, 2006
    Date of Patent: October 29, 2013
    Assignee: Lintec Corporation
    Inventors: Kentaro Kusama, Koichi Nagamoto, Mikihiro Kashio, Kazuhiro Kon, Motoyuki Hayakawa
  • Patent number: 8563624
    Abstract: A free radical curable liquid for inkjet printing of food packaging materials includes no initiator or otherwise one or more initiators selected from the group consisting of non-polymeric di- or multifunctional initiators, oligomeric initiators, polymeric initiators, and polymerizable initiators; wherein the polymerizable composition of the liquid consists essentially of: a) 25-100 wt % of one or more polymerizable compounds A having at least one acrylate group G1 and at least one second ethylenically unsaturated polymerizable functional group G2 different from the group G1; b) 0-55 wt % of one or more polymerizable compounds B selected from the group consisting of monofunctional acrylates and difunctional acrylates; and c) 0-55 wt % of one or more polymerizable compounds C selected from the group consisting of trifunctional acrylates, tetrafunctional acrylates, pentafunctional acrylates and hexafunctional acrylates.
    Type: Grant
    Filed: October 16, 2008
    Date of Patent: October 22, 2013
    Assignee: Agfa Graphics NV
    Inventors: Roland Claes, Johan Loccufier
  • Patent number: 8492452
    Abstract: A polymerizable photoinitiator is represented by Formula (I): wherein R1, R2 and R3 are independently selected from the group consisting of a hydrogen, an optionally substituted alkyl group and an optionally substituted aryl group or R1 and R3 represent the necessary atoms to form a five to eight membered ring; p, w, y and z are all integers with y representing a value 1 to 6; p representing the sum of w and z; p representing a value of 1 to 6; w=1 to (p?z) and z=0 to (p?w); L represents an optionally substituted (p+y)-valent linking group comprising 1 to 14 carbon atoms; A represents a radically polymerizable group selected from the group consisting of an acrylate group, a methacrylate group, a styrene group, an acryl amide group, a methacryl amide group, a maleate group, a fumarate group, an itaconate group, a vinyl ether group, an allyl ether group, an allyl ester group and a vinyl ester group; and X represents a photoinitiating moiety including at least one group capable of initiating a free radical p
    Type: Grant
    Filed: December 1, 2009
    Date of Patent: July 23, 2013
    Assignee: Agfa Graphics NV
    Inventors: Johan Loccufier, Luc Van Maele, Jaymes Van Luppen, Roland Claes
  • Patent number: 8404758
    Abstract: The invention provides methods for inducing reversible chain cleavage of polymer chains in a crosslinked polymeric material. Reversible cleavage of the polymer backbone is capable of relieving stress in the polymeric material as the bonds reform in a less stressed state. The invention also provides methods for making polymeric materials capable of reversible chain cleavage, materials made by the methods of the invention, and linear monomers containing reversible chain cleavage groups which are useful in the materials and methods of the invention.
    Type: Grant
    Filed: May 17, 2011
    Date of Patent: March 26, 2013
    Assignee: The Regents of the University of Colorado, a body corporate
    Inventors: Christopher N. Bowman, Timothy F. Scott
  • Patent number: 8323750
    Abstract: The present invention relates to a UV irradiation assisted method of surface modification, which comprises: introducing a functional group L onto the surface of a polymer material P through the photochemical reaction of a photosensitive group X under UV irradiation, wherein the photosensitive group X comprises at least one xanthone unit.
    Type: Grant
    Filed: August 20, 2008
    Date of Patent: December 4, 2012
    Assignees: Beijing Wanhexinyuan BioTechnology Co., Ltd., Beijing University of Chemical Technology
    Inventors: Wantai Yang, Zhenhua Huang, Yanhe Tong, Lei Shao
  • Patent number: 8039524
    Abstract: A grafting reagent and related method of using the reagent to form a polymeric layer on a support surface, and particularly a porous support surface, in a manner that provides and/or preserves desired properties (such as porosity) of the surface. The reagent and method can be used to provide a thin, conformable, uniform, uncrosslinked coating having desired properties onto the surface of a preformed, and particularly a porous, polymeric substrate.
    Type: Grant
    Filed: May 20, 2010
    Date of Patent: October 18, 2011
    Assignee: SurModics, Inc.
    Inventors: Ralph A. Chappa, Sean M. Stucke, Richard A. Amos, Terrence P. Everson, Stephen J. Chudzik, Pam Read, legal representative, Dale G. Swan, Peter H. Duquette
  • Patent number: 7943680
    Abstract: The invention provides methods for inducing reversible chain cleavage of polymer chains in a crosslinked polymeric material. Reversible cleavage of the polymer backbone is capable of relieving stress in the polymeric material as the bonds reform in a less stressed state. The invention also provides methods for making polymeric materials capable of reversible chain cleavage, materials made by the methods of the invention, and linear monomers containing reversible chain cleavage groups which are useful in the materials and methods of the invention.
    Type: Grant
    Filed: February 10, 2006
    Date of Patent: May 17, 2011
    Assignee: The Regents of the University of Colorado
    Inventors: Christopher N. Bowman, Timothy F. Scott
  • Patent number: 7883826
    Abstract: A radiation-sensitive composition and negative-working imagable element includes a polymeric binder that has a hydrophobic backbone and pendant salt groups that comprise a cation covalently attached to the hydrophobic backbone and a boron-containing anion forming a salt with the cation. The use of these particular polymers provides fast digital speed (high imaging sensitivity) and good printability (good shelf-life) even when the preheat step normally used between exposure and development, is omitted.
    Type: Grant
    Filed: December 7, 2006
    Date of Patent: February 8, 2011
    Assignee: Eastman Kodak Company
    Inventors: Scott A. Beckley, Ting Tao, Jianbing Huang
  • Patent number: 7829606
    Abstract: High durable polarized film comprising a radiation curable PSA layer for lamination in TFT/LCD applications have high humidity and heat resistance. In one embodiment, the adhesive comprises a UV curable acrylic polymer, a compatible tackifier, a multifunction unsaturated oligomer, and a long chain alkyl acrylate monomer.
    Type: Grant
    Filed: May 7, 2009
    Date of Patent: November 9, 2010
    Assignee: Henkel AG & Co. KGaA
    Inventors: Ming Chang Lu, Peter D. Palasz
  • Patent number: 7820158
    Abstract: Initiator polymers having an initiator group and a ligand group are provided. The initiator polymers are capable of specifically binding to a receptor on a surface. Using a macromer system, the initiator polymers are useful for the formation of a polymeric matrix on the surface of a material. In particular, initiator polymers are provided that have specificity to pancreatic ? cells and can be used to encapsulate cells for transplantation and the treatment of diabetes.
    Type: Grant
    Filed: April 10, 2003
    Date of Patent: October 26, 2010
    Assignee: SurModics, Inc.
    Inventors: Stephen J. Chudzik, Dale G. Swan
  • Patent number: 7795324
    Abstract: A novel polymeric initiator is disclosed comprising a dendritic polymer core with at least one initiating functional group as an end group. The dendritic polymeric core is preferably a hyperbranched polymer. The polymeric initiators are useful in radiation curable compositions such as varnishes, lacquers and printing inks and are especially useful in radiation curable inkjet inks.
    Type: Grant
    Filed: June 28, 2005
    Date of Patent: September 14, 2010
    Assignee: Agfa Graphics, N.V.
    Inventors: Johan Loccufier, Luc Vanmaele, Jaymes Van Luppen, Roland Claes, Yu Chen, Holger Frey
  • Patent number: 7754327
    Abstract: An article comprising an adhesive attachment region is provided. The adhesive attachment region comprises a radiation curable hot melt pressure sensitive adhesive.
    Type: Grant
    Filed: May 11, 2006
    Date of Patent: July 13, 2010
    Assignee: Henkel AG & Co. KGaA
    Inventor: Wei Kong
  • Patent number: 7709545
    Abstract: Benzophenone/thioxanthone derivatives useful as photoinitiators are provided as well as photopolymerizable compositions comprising the benzophenone/thioxanthone derivatives.
    Type: Grant
    Filed: December 5, 2007
    Date of Patent: May 4, 2010
    Assignee: The University of Southern Mississippi
    Inventors: Charles E. Hoyle, Sukhendu B. Hait, Mahmood Sabahi
  • Patent number: 7659324
    Abstract: Dental materials which contain a radically polymerizable organic binder, at least one radical polymerization initiator and at least one radical polymerization accelerator, both the initiator and the accelerator each having at least one radically polymerizable group.
    Type: Grant
    Filed: December 17, 2004
    Date of Patent: February 9, 2010
    Assignee: Ivoclar Vivadent AG
    Inventors: Norbert Moszner, Urs Karl Fischer, Peter Burtscher, Jörg Angermann, Volker M. Rheinberger
  • Patent number: 7615323
    Abstract: Lithographic printing plate precursor comprising (a) a lithographic substrate with a hydrophilic surface and (b) a radiation-sensitive coating on the hydrophilic surface comprising (i) one or more types of monomers and/or oligomers and/or polymers, each comprising at least one ethylenically unsaturated group accessible to a free radical polymerization, (ii) at least one sensitizer, and at least one coinitiator capable of forming free radicals together with the sensitizer (ii); characterized in that the at least one sensitizer is an oligomeric or polymeric compound comprising the following structural unit (Formula (I)), wherein ?1 is an aromatic or heteroaromatic unit or a combination of the two so that a conjugated n-system is present between the two groups Z in structure (I), each Z independently represents a heteroatom, each R1 and R2 is independently selected from a halogen atom, an alkyl, aryl, alkylaryl or aralkyl group, a group —NR3R4 and a group —OR5, each R3, R4 and R5 is independently selected from a
    Type: Grant
    Filed: November 11, 2005
    Date of Patent: November 10, 2009
    Assignee: Kodak Graphic Communications, GmbH
    Inventors: Bernd Strehmel, Harald Baumann, Udo Dwars, Detlef Pietsch, Axel Draber, Michael Mursal
  • Patent number: 7541131
    Abstract: The invention provides a resist composition for use in the production process of a semiconductor such as IC, in the production of a circuit substrate of liquid crystal, thermal head and the like or in other photofabrication processes, a compound for use in the resist composition and a pattern forming method using the resist composition, which are a resist composition comprising (A) a sulfonium salt represented by the following formula (I); and a pattern forming method using the resist composition: wherein R1 represents an alkyl group or an aryl group, R2 to R9 each independently represents a hydrogen atom or a substituent and may combine with each other to form a ring, Z represents an electron-withdrawing divalent linking group, Xn? represents an n-valent anion, n represents an integer of 1 to 3, and m represents the number of anions necessary for neutralizing the electric charge.
    Type: Grant
    Filed: February 17, 2006
    Date of Patent: June 2, 2009
    Assignee: FUJIFILM Corporation
    Inventor: Yasutomo Kawanishi
  • Patent number: 7538144
    Abstract: A novel photoreactive polymer is disclosed comprising a dendritic polymer core with at least one initiating functional group and at least one co-initiating functional group. The photoreactive polymers are useful in radiation curable compositions are varnishes, lacquers, printing inks and radiation curable ink-jet inks. The dendritic polymeric core is preferably a hyperbranched polymer.
    Type: Grant
    Filed: June 29, 2005
    Date of Patent: May 26, 2009
    Assignee: Agfa Graphics, N.V.
    Inventors: Luc Vanmaele, Johan Loccufoer, Yu Chen, Holger Frey
  • Patent number: 7521487
    Abstract: A process for preparing a polyacrylate-based shaped article, a polyacrylate being polymerized by a conventional method, wherein the polyacrylate comprises copolymerized comonomers having thermally crosslinkable groups and comonomers having attached photoinitiators, and the polyacrylate is crosslinked thermally in a first step and by irradiation with UV light in a second step.
    Type: Grant
    Filed: April 29, 2005
    Date of Patent: April 21, 2009
    Assignee: tesa Aktiengesellschaft
    Inventors: Sven Hansen, Marc Husemann, Kay Brandes, Stephan Zollner
  • Patent number: 7507773
    Abstract: A radiation curable composition comprising a novel photoreactive polymer is disclosed comprising a dendritic polymer core with at least one initiating functional group and at least one co-initiating functional group. Suitable radiation curable compositions are varnishes, lacquers, printing inks and radiation curable ink-jet inks. The dendritic polymeric core is preferably a hyperbranched polymer.
    Type: Grant
    Filed: June 29, 2005
    Date of Patent: March 24, 2009
    Assignee: AGFA Graphics N.V.
    Inventors: Johan Loccufier, Luc Vanmaele, Roland Claes, Jaymes Van Luppen, Yu Chen, Holger Frey
  • Patent number: 7491752
    Abstract: 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: Grant
    Filed: July 15, 2002
    Date of Patent: February 17, 2009
    Assignee: Rolic AG
    Inventors: Guy Marck, Hubert Seiberle, Mohammed Ibn-Elhaj
  • Patent number: 7429409
    Abstract: Process for preparing crosslinked pressure-sensitive adhesives at least partly based on block copolymers comprising at least one polyvalent thioether unit, characterized in that at least the following process steps are carried out: two-stage or multi-stage free-radical addition polymerization of at least two copolymerizable monomers in the presence of at least one polyvalent mercaptan, at least one of the monomers being functionalized such that on irradiation with ultraviolet rays it initiates a UV crosslinking, the polymerization producing block copolymers containing at least one polyvalent thioether unit, coating of the polymer from the melt onto a backing, crosslinking of the polymer on the backing by irradiation with ultraviolet radiation.
    Type: Grant
    Filed: May 2, 2005
    Date of Patent: September 30, 2008
    Assignee: tesa AG
    Inventor: Marc Husemann
  • Patent number: 7414081
    Abstract: Radiation-curable compositions, and methods of making the same, for providing a wide variety of substrates with a durable, colored coating or colorant are disclosed. The color is at least in part provided by chromophore molecules that are covalently bonded to other components within the radiation-curable composition. A telecommunication element having a durable color identifying polymeric coating thereon is also disclosed. The telecommunication element comprises an elongated communication transmission medium, such as an optical fiber or an optical fiber ribbon, and a radiation-cured polymeric coating having an identifying color applied on at least a portion of the transmission medium.
    Type: Grant
    Filed: May 21, 2002
    Date of Patent: August 19, 2008
    Assignee: Draka Comteq B.V.
    Inventors: Robert W. Greer, Todd Warren Gantt, Michael B. Purvis, Bob J. Overton
  • Patent number: 7405308
    Abstract: Triarylsulfonium salts of formula I or II are useful as initiators for cationic photopolymerizations: wherein Ar1 and Ar2 are independently polycyclic aryl, substituted aryl, heteroaryl, substituted heteroaryl, or aryl or heteroaryl, pendant from a polymer chain; and MtXn? is a complex anion selected from PF6?, SbF6?, AsF6?, GaF6?, BF4?, (C6F5)4B? and CF3SO2)3C?.
    Type: Grant
    Filed: November 16, 2004
    Date of Patent: July 29, 2008
    Assignee: Rensselaer Polytechnic Institue
    Inventor: James V. Crivello
  • Patent number: 7396861
    Abstract: Radiation curable compositions with a polymeric co-initiator are disclosed comprising a dendritic polymer core with at least one co-initiating functional group as an end group. The dendritic polymeric core is preferably a hyperbranched polymer. Industrial applications include varnishes, lacquers and printing inks. The polymeric co-initiator is especially useful in radiation curable inkjet ink.
    Type: Grant
    Filed: June 28, 2005
    Date of Patent: July 8, 2008
    Assignee: Agfa Graphics NV
    Inventors: Johan Loccufier, Luc Vanmaele, Jaymes Van Luppen, Roland Claes
  • Patent number: 7393881
    Abstract: A telecommunication element having a durable color identifying polymeric coating thereon is disclosed. The telecommunication element comprises an elongated communication transmission medium, such as an optical fiber or an optical fiber ribbon, and a radiation cured polymeric coating having an identifying color applied on at least a portion of the transmission medium. The identifying color in the polymeric coating is provided by chromophore molecules that are covalently bonded thereto. Coating compositions and a method are also disclosed.
    Type: Grant
    Filed: December 21, 2005
    Date of Patent: July 1, 2008
    Assignee: ALCATEL
    Inventor: Robert W. Greer, IV
  • Patent number: 7364834
    Abstract: A polymer having ?,? unsaturated groups and a group that generates a free radical when exposed to actinic radiation. The polymer may be self-cross-linking.
    Type: Grant
    Filed: July 13, 2005
    Date of Patent: April 29, 2008
    Assignee: Rohm and Haas Electronic Materials LLC
    Inventors: Robert K. Barr, Edgardo Anzures, Daniel E. Lundy
  • Patent number: 7323290
    Abstract: A dry film photoresist includes a functional polymer. The functional polymer has ?,?-unsaturated groups and groups that generate a free radical upon exposure to actinic radiation.
    Type: Grant
    Filed: March 18, 2003
    Date of Patent: January 29, 2008
    Assignee: Eternal Technology Corporation
    Inventors: Robert K. Barr, Edgardo Anzures, Daniel E. Lundy
  • Patent number: 7307106
    Abstract: A curable composition is described comprising a Michael donor component, a polyacryl component, and a monoacryl component, where at least one of the Michael donor or monoacryl components comprises a pendent photoinitiator group. A Michael addition polymer that is the Michael addition reaction product of these components is also described.
    Type: Grant
    Filed: December 10, 2004
    Date of Patent: December 11, 2007
    Assignee: 3M Innovative Properties Company
    Inventors: Duane D. Fansler, Kevin M. Lewandowski, Babu N. Gaddam
  • Patent number: 7303858
    Abstract: Disclosed herein is a photoacid generating polymer represented by Formula 1 below: wherein R1 is a C1-10 hydrocarbon or a C1-10 hydrocarbon in which the hydrogen atoms are wholly or partly replaced by fluorine atoms; R2 is hydrogen or a methyl group; and a, b, c and d represent the mole fraction of each monomer and are in the range between about 0.05 and about 0.9, such that the sum of a, b, c, and d equals one. Since the photoacid generating polymer of Formula 1 is not water-soluble and acts as a photoacid generator, it can be used to prepare a top anti-reflective coating composition for immersion lithography.
    Type: Grant
    Filed: June 28, 2005
    Date of Patent: December 4, 2007
    Assignee: Hynix Semiconductor Inc.
    Inventors: Jae Chang Jung, Cheol Kyu Bok, Chang Moon Lim, Seung Chan Moon
  • Patent number: 7300962
    Abstract: In one aspect, the present invention provides hydrogels comprising polymer molecules and bridging molecules, wherein substantially all the polymer molecules are cross-linked by hydrogen bonds between polymer molecules and bridging molecules, wherein each bridging molecule is linked to at least two polymer molecules, and wherein there are substantially no covalent linkages between the polymer molecules. In some embodiments, the polymer molecules are poly(vinyl alcohol) (PVA) and the bridging molecules are amino acids. Some embodiments of the invention provide devices comprising hydrogels, and pharmaceutical compositions comprising biologically active molecules within hydrogels. Another aspect provides methods for forming hydrogels of the invention.
    Type: Grant
    Filed: August 9, 2005
    Date of Patent: November 27, 2007
    Assignee: University of Washington
    Inventors: Buddy D. Ratner, Prabha D. Nair, Maximiliane Silvia Boeckl, Elizabeth Reeves Leber
  • Patent number: 7271203
    Abstract: A process for increasing the molecular weight of polyacrylates, characterized in that polyacrylates which are functionalized at least on one part of their chain ends by photoinitiator groups X are exposed to actinic radiation, so that a direct linking reaction of the polyacrylates takes place.
    Type: Grant
    Filed: November 22, 2002
    Date of Patent: September 18, 2007
    Assignee: tesa Aktiengesellschaft
    Inventors: Marc Husemann, Stephan Zöllner
  • Patent number: 7262231
    Abstract: The invention provides compounds which can generate amine by irradiation with light and are excellent both in photodecomposability and in reactivity and compatibility with amine-curable compounds, and photo-setting compositions containing the compounds. The compounds are carbamoyloxyimino compounds represented by the structural formula (I); and the compositions each comprise one or more of the carbamoyloxyimino compounds and an amine-curable compound. In the formula (I), R1 is an n-valent organic group; R2 and R3 are each hydrogen or an aromatic or aliphatic group; and n is an integer of 1 or above.
    Type: Grant
    Filed: August 16, 2005
    Date of Patent: August 28, 2007
    Assignee: Sekisui Chemical Co., Ltd.
    Inventors: Hideaki Ishizawa, Hiroji Fukui, Takeo Kuroda
  • Patent number: 7232540
    Abstract: The present invention relates to radiation-curable coating formulations specifically for plastic substrates. The present invention specifically relates to resinous Michael addition products of ?-dicarbonyl compounds and Lewis-functional multifunctional acrylate esters. The present invention further relates to methods of fabricating and using the inventive compounds.
    Type: Grant
    Filed: May 2, 2004
    Date of Patent: June 19, 2007
    Assignee: Ashland Licensing and Intellectual Property LLC
    Inventors: Michael Gould, Matthew S. Sheridan, Thomas L. Marino, Alexandre Mejiritski, Dustin B. Martin
  • Patent number: 7214725
    Abstract: The present invention relates generally to radiation-curable ink formulations, and particularly, but not by way of limitation, to a family of radiation-curable ink formulations specifically for lithographic printing applications. The inventive ink formulations are based on multifunctional acrylate resins formed by the reaction of acrylate monomers and oligomers with ?-keto esters (e.g., acetoacetates), ?-diketones (e.g., 2,4-pentanedione), ?-keto amides (e.g., acetoacetanilide, acetoacetamide), and/or other ?-dicarbonyl compounds that can participate in Michael addition reactions.
    Type: Grant
    Filed: April 30, 2004
    Date of Patent: May 8, 2007
    Assignee: Ashland Licensing and Intellectual Property LLC
    Inventors: Sridevi Narayan-Sarathy, Lisa M. Hahn
  • Patent number: 7157535
    Abstract: UV curable compositions, polymeric photoinitiators and precursors therefor are described.
    Type: Grant
    Filed: June 18, 2003
    Date of Patent: January 2, 2007
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventors: Donald E. Herr, Ziyi Hu, Charles W. Paul, Robert W. R. Humphreys
  • Patent number: 7135209
    Abstract: The present invention relates to water soluble radiation activatable polymer resin formulations which are suitable to modify the absorption properties of fibrous materials and the polymer obtained by such radiation activatable polymer resins and the method of preparing such polymer. Fibrous materials made with radiation activatable resin formulations according to this invention are especially suitable for use in disposable absorbent articles.
    Type: Grant
    Filed: May 29, 2002
    Date of Patent: November 14, 2006
    Assignee: Basf Aktiengesellschaft
    Inventors: Thomas Daniel, Rainer Dyllick-Brenzinger, Ralf Fink, Karl-Heinz Schumacher, Oliver Koch
  • Patent number: 7091257
    Abstract: A radiation-curable fiber optic coating composition for an inner primary coating includes a coloring agent, preferably a dye or a dye precursor, compatible with the fiber of the fiber optic and capable of imparting a pre-selected color to the inner primary coating, or another coating. The coloring agent can be a reactive dye. Any of the dyes preferably is stabilized by a stabilizer in the colored coating layer, or, preferably, in a more exterior layer.
    Type: Grant
    Filed: June 1, 2001
    Date of Patent: August 15, 2006
    Assignee: Alcatel
    Inventor: Robert W. Greer, IV
  • Patent number: 7074840
    Abstract: The invention relates to novel photoinitiators and their use in light adjustable compositions. The initiatives comprise two or more multiphoton chromophores linked by a bridging compound. The bridging compound consists of a material that is compatible with the base material of the light adjustable composition. The novel photoinitiator permit the readjustment of light adjustable material without the need for significant amounts of photoabsorbers.
    Type: Grant
    Filed: August 9, 2004
    Date of Patent: July 11, 2006
    Assignee: Calhoun Vision
    Inventors: Shiao H. Chang, Robert H. Grubbs, Julia A. Kornfield, Axel Brait
  • Patent number: 7067566
    Abstract: 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: Grant
    Filed: November 11, 2002
    Date of Patent: June 27, 2006
    Assignee: LG Cable Ltd.
    Inventors: Dongcheon Shin, Jinyool Kim, Kyusoon Park, Taemin Kim
  • Patent number: 7041755
    Abstract: Photoiniferters for controlled radical polymerizations are described. The photoiniferters have an azlactone or ring-opened azlactone moiety to provide telechelic (co)polymers.
    Type: Grant
    Filed: March 16, 2005
    Date of Patent: May 9, 2006
    Assignee: 3M Innovative Properties Company
    Inventors: Kevin M. Lewandowski, Michael S. Wendland, Duane D. Fansler, Steven M. Heilmann, Babu N. Gaddam
  • Patent number: 6949590
    Abstract: In one aspect, the present invention provides hydrogels comprising polymer molecules and bridging molecules, wherein substantially all the polymer molecules are cross-linked by hydrogen bonds between polymer molecules and bridging molecules, wherein each bridging molecule is linked to at least two polymer molecules, and wherein there are substantially no covalent linkages between the polymer molecules. In some embodiments, the polymer molecules are poly(vinyl alcohol) (PVA) and the bridging molecules are amino acids. Some embodiments of the invention provide devices comprising hydrogels, and pharmaceutical compositions comprising biologically active molecules within hydrogels. Another aspect provides methods for forming hydrogels of the invention.
    Type: Grant
    Filed: January 9, 2003
    Date of Patent: September 27, 2005
    Assignee: University of Washington
    Inventors: Buddy D. Ratner, Prabha D. Nair, Maximiliane Silvia Boeckl, Elizabeth Reeves Leber
  • Patent number: 6914086
    Abstract: A crosslinkable UV absorbing agent prepared by the following steps: (1) preparing a mixture of reactants comprising a UV absorbing compound (A) with multiple pendant hydroxyl groups and an unsaturated monoglycidyl compound (B) with both reactive glycidyl and vinyl groups; (2) mixing a base catalyst (C) with the mixture of reactants; (3) initiating a synthesis reaction of the crosslinkable UV absorbing agent under heating; and (4) recovering the resulting product after the synthesis reaction is completed. The crosslinkable UV absorbing agent is directly applicable in the lens formulation to replace conventional crosslinking agent and UV absorber used in the production of the soft contact lens without any purification or modification.
    Type: Grant
    Filed: June 24, 2003
    Date of Patent: July 5, 2005
    Inventor: Shinn-Gwo Hong