Containing Ethylenic Unsaturation Patents (Class 522/34)
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Publication number: 20080021126Abstract: The invention relates to novel photoinitiators of formula (I) wherein each of the substituents is given the definition as set forth in the Specification and the claims. The photoinitiators can be used to prepare multifunctional photoinitiators.Type: ApplicationFiled: January 24, 2005Publication date: January 24, 2008Inventors: Kurt Dietliker, Rinaldo Husler, Jean-Luc Birbaum, Jean-Pierre Wolf
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Patent number: 7307106Abstract: 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: GrantFiled: December 10, 2004Date of Patent: December 11, 2007Assignee: 3M Innovative Properties CompanyInventors: Duane D. Fansler, Kevin M. Lewandowski, Babu N. Gaddam
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Patent number: 7300747Abstract: The photobase generator of the invention is represented by the following formula 1: wherein Ar, R, A+ and X? are as defined in the specification. Since the photobase generator of the formula 1 absorbs ultraviolet lights of relatively long wavelength and is photolyzed to generate a strong base efficiently, a composition containing the photobase generator and an episulfide compound is easily cured by polymerization under ultraviolet irradiation.Type: GrantFiled: February 7, 2005Date of Patent: November 27, 2007Assignee: Mitsubishi Gas Chemical Company, Inc.Inventors: Hitoshi Okazaki, Junya Hayakawa, Motoharu Takeuchi, Masahiro Jono, Kenji Ishii
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Patent number: 7186312Abstract: A hotmelt adhesive having a melting point of at least 40° C. is provided which may be hardened in multiple stages and which is useful in the production of laminates. The hotmelt adhesive may contain a polymer with at least one functional group that is reactive towards a compound with an acidic hydrogen atom and with one functional group that can be polymerized by UV or electron beams, or a polymer with at least one functional group that is reactive towards a compound with an acidic hydrogen atom and with no functional group that can be polymerized by UV or electron beams. These polymers may be used in combination with a relatively low molecular compound with a functional group that can be polymerized by UV or electron beams.Type: GrantFiled: June 12, 1999Date of Patent: March 6, 2007Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Gerd Bolte, Andreas Ferencz, Markus Kruedenscheidt, Thomas Offergeld
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Patent number: 7169825Abstract: Self-photoinitiating liquid oligomeric compositions are disclosed. The oligomeric compositions are formed from multifunctional mercaptans and Michael addition polyacrylate resins, synthesized from multifunctional acrylates and ?-dicarbonyl Michael donors, specifically ?-keto esters, ?-diketones, ?-ketoamides or ?-ketoanilides or combinations thereof The oligomeric compositions are provided along with uses thereof and methods of fabricating.Type: GrantFiled: July 29, 2003Date of Patent: January 30, 2007Assignee: Ashland Licensing and Intellectual Property LLCInventors: Sridevi Narayan-Sarathy, Michael Gould
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Patent number: 7148265Abstract: 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: GrantFiled: March 18, 2003Date of Patent: December 12, 2006Assignee: Rohm and Haas Electronic Materials LLCInventors: Robert K. Barr, Edgardo Anzures, Daniel E. Lundy
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Patent number: 7135209Abstract: 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: GrantFiled: May 29, 2002Date of Patent: November 14, 2006Assignee: Basf AktiengesellschaftInventors: Thomas Daniel, Rainer Dyllick-Brenzinger, Ralf Fink, Karl-Heinz Schumacher, Oliver Koch
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Patent number: 7008752Abstract: A photosensitive resin composition which, when exposed to light through a photomask and then developed, can form a pattern comprising a polyimide film having a thickness of 20 ?m or larger with high resolution; and a use of the composition, in particular, a method of forming a pattern comprising the polyimide film. The photosensitive resin composition comprises (a) a poly(amic acid), (b) a specific 1,4-dihydropyridine derivative, and (c) a specific imide acrylate compound.Type: GrantFiled: March 17, 2005Date of Patent: March 7, 2006Assignee: Nitto Denko CorporationInventors: Hirofumi Fujii, Yasuhito Funada, Satoshi Tanigawa
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Patent number: 6914086Abstract: 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: GrantFiled: June 24, 2003Date of Patent: July 5, 2005Inventor: Shinn-Gwo Hong
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Patent number: 6849668Abstract: A multi-functional photoinitiator of formula (I) R1m—Q—(A1—PI)n??(I) wherein Q is a heteroatom selected from Si, Ti, Zr and Sn or any two independently selected such heteroatoms linked by a covalent bond or a by C1-16 (preferably C1-9) alkylene group, n is at least 2 and n+m=the functionality of Q, each R1 is the same or different and is a non-photoinitiator group; each group PI is the same or different and is a photoinitiator group. Each —A1— is the same or different and is selected from linking groups of formula —(A2)p—Z— wherein p has an average of from 1 to 10, preferably from 3 to 5 and the groups —A2— are either (a) each independently selected from C2-4 alkyleneoxy groups; or (b) each independently selected from groups of formula —O—(CH2)qCO— wherein q is from 3 to 5, and Z is selected from —O—, —S— and —NR6— where R6 is C1-6 alkyl.Type: GrantFiled: August 4, 2000Date of Patent: February 1, 2005Assignee: Sun Chemical CorporationInventors: Roger Edward Burrows, Shaun Lawrence Herlihy, Derek Ronald Illsley
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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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Patent number: 6747090Abstract: The invention related to a hydrogel forming aqueous composition of water soluble polymers having a sufficiently high coherency that it substantially not is dispersed when being injected into an aqueous environment of a body site such as the capsular bag of the eye to undergo a photoinitiated crosslinking reaction. The water soluble polymers either can be a water-soluble polymer bearing free acrylic, or other vinylic groups capable of facile free radical reaction with a polymeric water-soluble photoinitiator also present in the composition, or a water-soluble polymer bearing both free acrylic, or other vinylic groups capable of facile free radical reaction and photoinitiator, wherein both polymers are capable of being crosslinked when irradiated with light of wavelengths greater than about 305 nm to form the hydrogel.Type: GrantFiled: July 16, 2002Date of Patent: June 8, 2004Assignee: Pharmacia Groningen BVInventors: Jacqueline Hermina De Groot, Kenneth Albert Hodd, Hendrik Jan Haitjema
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Patent number: 6693141Abstract: The invention relates to the use of surface-active photoinitiators of formula I the units being arranged randomly or in blocks, and wherein n is a number from 1 to 1000; m is a number from 0 to 100; p is a number from 0 to 10,000; x is the number 1, or, when n is 1, x may also be the number 2; A1 and A2 are, for example, C1-C18alkyl; or A1 and A2 together are a single bond; R1, R2 and R3 are, for example, each independently of the others C1-C18alkyl, phenyl or C5-C8cycloalkyl; R4 is, for example, unsubstituted or substituted C1-C18alkyl, unsubstituted or substituted phenyl or C5-C8cycloalkyl; IN, when x is 1, is a radical of formula when x is 2, is a radical of formula R13 and R14 are, for example, each independently of the other C1-C12alkyl; Y is, for example, —(CH2)a—O—; X is OR15 or N(R16)(R17); R15 is, for example, hydrogen or C1-C4alkyl; R16 and R17 are, for example, hydrogen or C1-C12alkyl; X1 has, for example, one of the meanings oType: GrantFiled: December 21, 2001Date of Patent: February 17, 2004Assignee: Ciba Specialty Chemicals CorporationInventors: Gisèle Baudin, Tunja Jung
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Patent number: 6673850Abstract: Photoinitiators of formula (Ia) or (Ib) having chain transfer groups, wherein n is 1 or 2; PI is for example a group of formula (IIa); PI′ inter alia is a group of formula (IIIa); Ar is for example phenyl; Ar2 is inter alia phenylene; R1 and R2 are for example C1-C8alkyl, or R1 and R2 together C2-C9alkylene; M1 inter alia is —NR3R4 or —OH; M1′ is for example a group (c); R3′ is a direct bond, C1-C12alkylene, or phenylene; R3 is for example hydrogen, or C1-C12alkyl; R4 is e.g. C1-C12alkyl; A1 and A2 are for example a direct bond; CT is a chain transfer group; are useful for the preparation of macrophotoinitiators which can be employed for preparing block copolymers.Type: GrantFiled: October 18, 2001Date of Patent: January 6, 2004Assignee: Ciba Specialty Chemicals CorporationInventors: Hitoshi Yamato, Masaki Ohwa, Toshikage Asakura, Akira Matsumoto
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Publication number: 20030162124Abstract: The present invention provides a two-photon light-emitting compound represented by formula (1), an optical data recording medium capable of recording data with a laser beam comprising a compound represented by formula (1) and a two-photon polymerizable composition photopolymerizable by two-photon absorption comprising a polymerizable monomer or polymerizable oligomer and at least a two-photon absorption material being a compound represented by formula (1):Type: ApplicationFiled: September 4, 2002Publication date: August 28, 2003Applicant: FUJI PHOTO FILM CO., LTD.Inventors: Masaharu Akiba, Jun Kawamata
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Publication number: 20030125409Abstract: A method for photopolymerizing a monomer mixture to form a lens involves photopolymerizing a mixture of lens-forming monomers that includes an initiator of the formula: 1Type: ApplicationFiled: November 2, 2001Publication date: July 3, 2003Inventor: Yu-Chin Lai
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Patent number: 6482869Abstract: An adhesive useful in making composites includes two components A and B. Component A includes at least one polymer having a molecular weight (Mn) of at least 800 that has at least one functional group polymerizable by irradiation with UV light or with electron beams and has at least one functional group capable of reacting with a compound having at least one acidic hydrogen atom. Component B includes at least one compound having a molecular weight (Mn) of from about 100 to about 8000 which has at least two functional groups polymerizable by irradiation with UV light or with electron beams.Type: GrantFiled: August 10, 2000Date of Patent: November 19, 2002Assignee: Henkel Kommanditgesellschaft aut AktienInventors: Gerd Bolte, Andreas Ferencz, Thomas Huver
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Publication number: 20020006979Abstract: A method of reducing the flow viscosity of a polyacrylate composition, which comprises addingType: ApplicationFiled: January 25, 2001Publication date: January 17, 2002Inventors: Marc Husemann, Stephan Zollner
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Patent number: 6296986Abstract: A multifunctional photoinitiator is obtainable as the reaction product of a multifunctional core material containing two or more reactive groups and a photoinitiator or a derivative thereof. The photoinitiator or its derivative has a reactive group capable of reacting with the reactive groups of the multifunctional core.Type: GrantFiled: November 10, 1998Date of Patent: October 2, 2001Assignee: Coates Brothers PLCInventors: Derek Ronald Illsley, Aylvin Angelo Dias, Robert Stephen Davidson, Roger Edward Burrows
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Patent number: 6277897Abstract: The present invention is directed to new, energy-efficient photoinitiators in the form of &agr;-amino enol ether compounds. The present invention is also directed to a method of generating reactive species, which includes exposing one or more photoinitiators to radiation to form one or more reactive species. Also described are methods of polymerizing unsaturated monomers, methods of curing an unsaturated oligomer/monomer mixture, and methods of laminating using the photoinitiators of the present invention.Type: GrantFiled: June 3, 1999Date of Patent: August 21, 2001Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Ronald Sinclair Nohr, John Gavin MacDonald
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Patent number: 6242057Abstract: A method of generating reactive species which includes exposing a wavelength specific photoreactor composition to radiation, in which the wavelength specific photoreactor composition comprises one or more wavelength-specific sensitizers associated with one or more reactive species-generating photoinitiators. Also described are methods of polymerizing unsaturated monomers, methods of curing an unsaturated oligomer/monomer mixture, and methods of laminating.Type: GrantFiled: April 29, 1998Date of Patent: June 5, 2001Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Ronald Sinclair Nohr, John Gavin MacDonald
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Patent number: 6203143Abstract: Disclosed is a composition which comprises (a) a polymer containing at least some monomer repeat units with photosensitivity-imparting substituents which enable crosslinking or chain extension of the polymer upon exposure to actinic radiation, said polymer being of the formula wherein x is an integer of 0 or 1, A is one of several specified groups, such as B is one of several specified groups, such as or mixtures thereof, and n is an integer representing the number of repeating monomer units, wherein said photosensitivity-imparting substituents are hydroxyalkyl groups; (b) at least one member selected from the group consisting of photoinitiators and sensitizers; and (c) an optional solvent. Also disclosed are processes for preparing the above polymers and methods of preparing thermal ink jet printheads containing the above polymers.Type: GrantFiled: September 23, 1998Date of Patent: March 20, 2001Assignee: Xerox CorporationInventors: Ram S. Narang, Timothy J. Fuller
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Patent number: 6197842Abstract: This invention pertains to a process for the manufacture of a hydrophilic polymeric product, consisting in causing a material comprising a crosslinked silicone polymer matrix and photoinitiator groups dispersed and immobilized within the polymer matrix to swell in a swelling solution comprising a solvent for swelling the crosslinked silicone polymer of the matrix of the material, a photopolymerizable hydrophilic monomer and optionally a crosslinking agent and a proton- or electron-donating coinitiator compound, when the material comprises photoactivable photoinitiator groups and does not comprise proton- or electron-donating coinitiator groups causing the photopolymerizable hydrophilic monomer to diffuse into the swollen material, and polymerizing, by irradiation, the photopolymerizable hydrophilic monomer.Type: GrantFiled: December 18, 1998Date of Patent: March 6, 2001Assignee: Essilor International Compagnie Generale d'OptiqueInventors: Brigitte Marchin, Dominique Baude, Jean-Pierre Vairon, Marine-Anne Dourges, Philippe Chaumont, Joël Steiner
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Patent number: 6191182Abstract: A novel process for the preparation of compounds of formula I by aminolysis of a p-halophenyl alkyl ketone of formula II with a cyclic amine of formula III in water at a temperature of at least 130° C., in which formulae X is a halogen atom and R1, R2 and R3 are as claimed in claim 1, as well as the novel compounds of formula I and their use for the preparation of photoinitiators for the photopolymerisation of ethylenically unsaturated compounds.Type: GrantFiled: June 10, 1999Date of Patent: February 20, 2001Assignee: Ciba Specialty Chemcials CorporationInventors: Rinaldo Hüsler, Rudolf Schwabe, Reto Luisoli
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Patent number: 6156345Abstract: A crosslinkable macromer system that includes two or more polymer-pendent polymerizable groups and one or more polymer-pendent initiator groups. The polymerizable groups and the initiator group(s) can be pendent on the same or different polymeric backbones. The macromer system provides advantages over the use of polymerizable macromers and separate, low molecular weight initiators, including advantages with respect to such properties as nontoxicity, efficiency, and solubility.Type: GrantFiled: December 21, 1999Date of Patent: December 5, 2000Assignee: SurModics, Inc.Inventors: Stephen J. Chudzik, Aron B. Anderson
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Patent number: 6151042Abstract: Disclosed is a composition comprising a polymer with a weight average molecular weight of from about 1,000 to about 100,000, said polymer containing at least some monomer repeat units with a first, photosensitivity-imparting substituent which enables crosslinking or chain extension of the polymer upon exposure to actinic radiation, said polymer also containing a second, thermal sensitivity-imparting substituent which enables further crosslinking or chain extension of the polymer upon exposure to temperatures of about 140.degree. C.Type: GrantFiled: December 23, 1998Date of Patent: November 21, 2000Assignee: Xerox CorporationInventors: Thomas W. Smith, Timothy J. Fuller, Ram S. Narang, David J. Luca
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Patent number: 6099415Abstract: Ultraviolet radiation curing of inks on game balls, golf balls and the like is disclosed. Production inks, logo inks and methods for forming production prints and logos on golf balls, game balls and the like are disclosed. To form an ultraviolet radiation curable water-insoluble production ink, at least an adhesion promoting component is added to an ink base.Type: GrantFiled: March 10, 1998Date of Patent: August 8, 2000Assignee: Acushnet CompanyInventor: Mitchell E. Lutz
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Patent number: 6071979Abstract: A method of generating reactive species which includes exposing a wavelength specific photoreactor to radiation, in which the wavelength specific photoreactor comprises a wavelength-specific sensitizer associated with one or more reactive species-generating photoinitiators. Also described are methods of polymerizing unsaturated monomers and curing an unsaturated oligomer/monomer mixture.Type: GrantFiled: December 26, 1997Date of Patent: June 6, 2000Assignee: Kimberly-Clark Worldwide, Inc.Inventors: John Gavin MacDonald, Ronald Sinclair Nohr
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Patent number: 6071585Abstract: Printable sheets such as business forms and adhesive play mats having removable labels integrated therein are produced by applying pressure-sensitive adhesive directly to the base sheet of the printable sheet without a paper backing and encapsulating the adhesive with a solid silicone layer. The base sheet is die cut or perforated in regions where the adhesive is applied to define removable labels.Type: GrantFiled: June 30, 1998Date of Patent: June 6, 2000Assignee: NCR CorporationInventor: Joseph D. Roth
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Patent number: 6057380Abstract: Compounds of formula I, II or III ##STR1## X is a divalent radical; Y is C.sub.1 -C.sub.6 aklylene, cyclohexylene or a direct bond;Ar.sub.1 is an aromatic radical as defined in claim 1,R.sub.1 and R.sub.2 are each independently the other, inter alia, a radical of formula ##STR2## in which p is zero or 1, or a radical of formula ##STR3## R.sub.3 is, inter alia, hydrogen, C.sub.1 -C.sub.12 alkyl, C.sub.5 -C.sub.12 cycloalkyl or phenyl-C.sub.1 -C.sub.3 alkyl;R.sub.4 is, inter alia, C.sub.1 -C.sub.12 cycloalkyl, phenyl-C.sub.1 -C.sub.3 alkyl or phenyl;or an acid addition salt of a compound of formula I, II or III;are useful as photosensitive base catalysts in base crosslinking compositions.Type: GrantFiled: December 5, 1997Date of Patent: May 2, 2000Assignee: Ciba Specialty Chemicals CorporationInventors: Jean-Luc Birbaum, Martin Kunz, Akira Kimura, Hisatoshi Kura, Hidetaka Oka, Hiroko Nakashima
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Patent number: 6048653Abstract: The present invention provides a polymerizable composition for a color filter, which comprises a (meth)acrylate copolymer containing alicyclic (meth)acryloyl groups in its side chains, a compound having at least one ethylenically unsaturated double bond, a photopolymerization initiator and a colorant, a color filter obtained by coating the composition on a glass substrate, followed by exposure and development; and a method for producing a color filter, which comprises coating the composition on a glass substrate, followed by exposure and development.The polymerizable composition of the present invention is highly sensitive and excellent in chemical resistance. Accordingly, according to the present invention, it is possible to produce a color filter of a high quality without a protective layer such as an oxygen-shielding film.Type: GrantFiled: January 21, 1998Date of Patent: April 11, 2000Assignee: Mitsubishi Chemical CorporationInventors: Tameichi Ochiai, Ryuichiro Takasaki, Noriko Endou, Yuzuru Chika
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Patent number: 6022906Abstract: Compounds of the formulae I, II, III and IV ##STR1## wherein Ar for example is a phenyl, biphenyl or benzoylphenyl group, which is unsubstituted or substituted; Ar.sub.1, for example, has the same meanings as Ar; Ar.sub.2 is inter alia phenyl; X may be a direct bond; Y hydrogen, etc.; R.sub.1 and R.sub.2 for example C.sub.1 -C.sub.8 alkyl; R.sub.3 inter alia hydrogen or C.sub.1 -C.sub.12 alkyl; R.sub.4 is inter alia C.sub.1 -C.sub.12 alkyl; or R.sub.3 and R.sub.4 together are C.sub.3 -C.sub.7 alkylene; R.sub.5 is for example C.sub.1 -C.sub.6 alkylene; and Z is a divalent radical; provided that at least one of the radicals Ar, Ar.sub.1, Ar.sub.2, Ar.sub.3, R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 or Y is substituted by 1 to 5 SH groups, or provided that Y contains at least one --SS-- group, are photoinitiators for the polymerization of ethylenically unsaturated compounds.Type: GrantFiled: December 1, 1997Date of Patent: February 8, 2000Assignee: Ciba Specialty Chemicals CorporationInventors: Masaki Ohwa, Hitoshi Yamoto, Jean-Luc Birbaum, Hiroko Nakashima, Akira Matsumoto, Hidetaka Oka
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Patent number: 6007833Abstract: A crosslinkable macromer system that includes two or more polymer-pendent polymerizable groups and one or more polymer-pendent initiator groups. The polymerizable groups and the initiator group(s) can be pendent on the same or different polymeric backbones. The macromer system provides advantages over the use of polymerizable macromers and separate, low molecular weight initiators, including advantages with respect to such properties as nontoxicity, efficiency, and solubility.Type: GrantFiled: July 23, 1998Date of Patent: December 28, 1999Assignee: SurModics, Inc.Inventors: Stephen J. Chudzik, Aron B. Anderson
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Patent number: 6008268Abstract: A method of generating reactive species which includes exposing a photoreactor composition to radiation, in which the photoreactor composition comprises a wavelength-specific sensitizer associated with one or more reactive species-generating photoinitiators. Also described are methods of polymerizing unsaturated monomers and curing an unsaturated oligomer/monomer mixture.Type: GrantFiled: January 22, 1998Date of Patent: December 28, 1999Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Ronald Sinclair Nohr, John Gavin MacDonald
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Patent number: 5932298Abstract: Methods for preparing viscoelastic compositions (e.g., adhesives such as hot melt adhesives) in which a pre-viscoelastic composition (e.g., a pre-adhesive composition) is combined with a packaging material and then polymerized.Type: GrantFiled: August 17, 1998Date of Patent: August 3, 1999Assignee: Minnesota Mining and Manufacturing CompanyInventor: John D. Moon
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Patent number: 5902836Abstract: Solute polymers in solvent monomers form a coatable syrup that can be cured to a viscoelastomeric material when radiation-sensitive .alpha.-cleaving groups in either the polymer or one of the monomers are exposed to ultraviolet radiation. The solute polymers can be formed from the solvent monomers in situ or be added thereto to form the syrup.Type: GrantFiled: August 23, 1995Date of Patent: May 11, 1999Assignee: Minnesota Mining and Manufacturing CompanyInventors: Greggory S. Bennett, Gaddam N. Babu, Kejian Chen, Louis E. Winslow, George F. Vesley, Patrick G. Zimmerman
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Patent number: 5879837Abstract: A styrylcoumarin compound jointing a styryl group by--(C.dbd.C)n--portion and having --NR.sub.1 R.sub.2 group, wherein n is an integer of 2 to 4, and each R is a proton or an alkyl group having 1 to 10 carbon atoms. A photopolymerizable composition comprises the styrylcoumarin compound as a photosensitizer, a polymerization initiator and a polymerizable compound. A photocrosslinking composition comprises the styrylcoumarin compound as a photosensitizer, a crosslinking agent and a polymerizable compound. A volume phase hologram recording medium which comprises the styrylcoumarin compound, a crosslinking agent and a polymer comprising a carbazole.Type: GrantFiled: October 30, 1997Date of Patent: March 9, 1999Assignee: Canon Kabushiki KaishaInventors: Yoko Yoshinaga, Susumu Matsumura, Naosato Taniguchi, Shin Kobayashi, Toshiyuki Sudo, Hideki Morishima, Tadashi Kaneko
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Patent number: 5859084Abstract: A process for the preparation of a radiation-curable acrylate composition, wherein to compounds A containing at least 2 acrylic groups there are added benzophenone derivatives which are not copolymerizable by free-radical copolymerization and which contain at least one primary or secondary amino group or a hydroxyl group or a mercapto group.Type: GrantFiled: July 15, 1996Date of Patent: January 12, 1999Assignee: BASF AktiengesellschaftInventors: Jochen Schroder, Wolfgang Reich, Erich Beck, Martin Fischer, Wolfram Weiss
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Patent number: 5849411Abstract: A polymer film, polymer-coated nonwoven web, and a polymer-coated fiber formed by a process wherein an admixture of unsaturated polymerizable material and a photoreactor composition are drawn into a film or coated onto a web or fiber. The photoreactor composition includes a photoinitiator associated with a wavelength-specific sensitizer. The film, web or fiber is subsequently irradiated with light to polymerize the admixture.Type: GrantFiled: June 5, 1995Date of Patent: December 15, 1998Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Ronald Sinclair Nohr, John Gavin MacDonald
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Patent number: 5837746Abstract: Compounds of the formulaRG--A--INwherein IN is a photoinitiator basic structure A is a spacer group and RG is a functional reactive group can be employed as coreactive photoinitiators for photo-polymerization of systems containing ethylenically unsaturated compounds.Type: GrantFiled: June 23, 1997Date of Patent: November 17, 1998Assignee: Ciba Specialty Chemicals CorporationInventors: Manfred Kohler, Jorg Ohngemach, Eike Poetsch, Rudolf Eidenschink, Gerhard Greber, Dieter Dorsch, Jurgen Gehlhaus, Konrad Dorfner, Hans Ludwig Hirsch
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Patent number: 5824716Abstract: This invention relates to dicyclopentyl-oxyethyl methacrylate acrylic copolymer latices forming photocurable coalesced films and prepared by adding a photoinitiator to the latex, and which are useful for preparing lacquers and paints, particularly for building facades.Type: GrantFiled: July 19, 1996Date of Patent: October 20, 1998Assignee: Elf Atochem S.A.Inventors: Xavier Coqueret, Pierre Rousseau, Christophe Verge
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Patent number: 5821276Abstract: A printing ink for radiation curing, e.g. by UV radiation or an electron beam, comprises a mixture of a polymerizable composition, a pigment or a dye and a titanium or zirconium compound which is an alkoxide of an unsaturated alcohol, said polymerizable composition comprising at least one unsaturated monomer and, optionally, at least one prepolymer and being polymerizable by exposure to radiation. The titanium or zirconium compound acts as an adhesion promoter for the ink.Type: GrantFiled: July 23, 1996Date of Patent: October 13, 1998Assignee: Tioxide Specialties LimitedInventor: Robert Hume Duncan
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Patent number: 5811199Abstract: A method of generating reactive species which includes exposing a photoreactor composition to radiation, in which the photoreactor composition comprises a wavelength-specific sensitizer associated with a reactive species-generating photoinitiator. Also described are methods of polymerizing unsaturated monomers and curing an unsaturated oligomer/monomer mixture.Type: GrantFiled: June 5, 1995Date of Patent: September 22, 1998Assignee: Kimberly-Clark Worldwide, Inc.Inventors: John Gavin MacDonald, Ronald Sinclair Nohr
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Patent number: 5804610Abstract: Methods for preparing viscoelastic compositions (e.g., adhesives such as hot melt adhesives) in which a pre-viscoelastic composition (e.g., a pre-adhesive composition) is combined with a packaging material and then polymerized by transmissive energy.Type: GrantFiled: August 28, 1997Date of Patent: September 8, 1998Assignee: Minnesota Mining and Manufacturing CompanyInventors: Craig E. Hamer, John D. Moon, Thomas A. Kotnour
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Patent number: 5798015Abstract: A method of generating reactive species which includes exposing a photoreactor composition to radiation, in which the photoreactor composition comprises a wavelength-specific sensitizer associated with a reactive species-generating photoinitiator. Also described are methods of polymerizing unsaturated monomers and curing an unsaturated oligomer/monomer mixture.Type: GrantFiled: June 5, 1995Date of Patent: August 25, 1998Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Ronald Sinclair Nohr, John Gavin MacDonald
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Patent number: 5747550Abstract: A method of generating reactive species which includes exposing a photoreactor composition to radiation, in which the photoreactor composition comprises a wavelength-specific sensitizer associated with a reactive species-generating photoinitiator. Also described are methods of polymerizing unsaturated monomers and curing an unsaturated oligomer/monomer mixture.Type: GrantFiled: June 5, 1995Date of Patent: May 5, 1998Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Ronald Sinclair Nohr, John Gavin MacDonald
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Patent number: 5744512Abstract: Compounds of the formulaRG--A--INwhereinIN is a photoinitiator basic structureA is a spacer group andRG is a functional reactive group can be employed as coreactive photoinitiators for photopolymerization of systems containing ethylenically unsaturated compounds.Type: GrantFiled: March 20, 1996Date of Patent: April 28, 1998Assignee: Ciba Specialty Chemicals CorporationInventors: Manfred Kohler, Jorg Ohngemach, Eike Poetsch, Rudolf Eidenschink, Gerhard Greber, Dieter Dorsch, Jurgen Gehlhaus, Konrad Dorfner, Hans Ludwig Hirsch
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Patent number: 5739175Abstract: A method of generating reactive species which includes exposing a photoreactor composition to radiation, in which the photoreactor composition comprises a wavelength-specific sensitizer associated with a reactive species-generating photoinitiator. Also described are methods of polymerizing unsaturated monomers and curing an unsaturated oligomer/monomer mixture.Type: GrantFiled: June 5, 1995Date of Patent: April 14, 1998Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Ronald Sinclair Nohr, John Gavin MacDonald
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Patent number: 5721287Abstract: A method of mutating a colorant in a composition which includes a colorant and a radiation transorber by irradiating the composition. The colorant, in the presence of the radiation transorber, is adapted, upon exposure of the transorber to specific, narrow bandwidth radiation, to be mutable. The radiation transorber also imparts light-stability to the colorant so that the colorant does not fade when exposed to sunlight or artificial light.Type: GrantFiled: June 5, 1995Date of Patent: February 24, 1998Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Ronald Sinclair Nohr, John Gavin MacDonald
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Patent number: 5700850Abstract: A light-stable colored composition which includes a colorant and a radiation transorber. The colorant, in the presence of the radiation transorber, is adapted, upon exposure of the transorber to specific, narrow bandwidth radiation, to be mutable. The radiation transorber also imparts light-stability to the colorant so that the colorant does not fade when exposed to sunlight or artificial light.Type: GrantFiled: June 5, 1995Date of Patent: December 23, 1997Assignee: Kimberly-Clark WorldwideInventors: Ronald Sinclair Nohr, John Gavin MacDonald