Containing C-co-c(r)(or) Wherein R Is Organic, E.g., Diethoxyacetophenone, Etc. Patents (Class 522/44)
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Patent number: 7601764Abstract: The invention pertains to a photosensitive resin composition, comprising: (A) an alkaline soluble resin; (B) a multi-functional monomer; (C) a photoinitiator; (D) a colorant; and (E) a solvent, wherein said alkaline soluble resin comprises a copolymer obtained from the copolymerization of 5-95 wt % of the monomer of formula (1): and 5-95 wt % of an ethylenically unsaturated monomer containing at least one carboxy group. The inventive photosensitive resin composition possesses good heat resistance, development properties, and adhesion properties and can be used in liquid crystal displays as a photosensitive material for the manufacture of color filters.Type: GrantFiled: August 9, 2007Date of Patent: October 13, 2009Assignee: Axin Materials CorporationInventors: Tu-Yi Wu, Guan-An Chen
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Publication number: 20090253805Abstract: The present invention provides modified multifunctional thiol-ene monomers wherein one or more thiols are reacted with a Michael addition reactive double bond compound. The present invention further discloses photocurable thiol-ene formulations comprising thiol-ene monomers including the modified multifunctional thiols. The present invention further discloses photocurable thiol-ene formulations comprising thiol-ene monomers and Michael addition reactive double bond molecules and a Michael catalyst. The formulations of the present invention can be photocured to make films or coatings. In a further disclosure, the formulations, including those comprised of unmodified multifunctional thiols and multifunctional enes, are photocured to form films applied to non-flexible or flexible polymer or non-polymer substrates suitable for food packaging, electronic products, optical products and other applications and free-standing films.Type: ApplicationFiled: April 6, 2009Publication date: October 8, 2009Inventors: Charles E. Hoyle, Sergei Nazarenko, Huanyu Wei
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Publication number: 20090202744Abstract: An inkjet ink comprising: at least a colorant, an aqueous and a high molecular compound which has a hydrophilic main chain and plural side chains on the hydrophilic main chain and is cross-linkable among side chains by being irradiated with active energy rays, wherein the colorant is anionic and the side chains of the high molecular compound are anionic or nonionic.Type: ApplicationFiled: December 2, 2005Publication date: August 13, 2009Applicant: KONICA MINOLTA HOLDINGS, INC.Inventor: Yoshinori Tsubaki
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Patent number: 7572487Abstract: Inks are disclosed which are used in ink-jet printing. The inks are cured by ultraviolet radiation, preferably free radical initiation. The inks contain a (meth)acryate monomer, an ?,?-unsaturated ether monomer and a photoinitiator. The inks exhibit a low viscosity and give tough printed images after curing.Type: GrantFiled: April 23, 2008Date of Patent: August 11, 2009Assignee: Sericol LimitedInventor: Carol Noutary
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Patent number: 7553879Abstract: A UV radiation curable primer coating composition curable under a UV radiation emitting lamp or sunlight. The coating demonstrates improved curing time and includes ethylenically unsaturated free radically polymerizable compounds and 0.1% photoinitiator or less.Type: GrantFiled: February 21, 2008Date of Patent: June 30, 2009Assignee: BASF CorporationInventors: Thomas J Laginess, Hans Kempf, Jennifer R Stewart
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Patent number: 7534495Abstract: A lubricious composition suitable for use on medical device, the composition including at least one alkoxylated acrylate compound having at least two acrylate groups per molecule and at least one second component which provides lubricity.Type: GrantFiled: January 29, 2004Date of Patent: May 19, 2009Assignee: Boston Scientific Scimed, Inc.Inventor: Lincoln Eramo
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Publication number: 20090093562Abstract: It is the object of the invention to provide a curable resin composition which causes no liquid crystal contamination, which are excellent in the adhesive property to a glass, and which causes no cell gap inequality in the case it is used as a sealant for a liquid crystal display element to produce a liquid crystal display element by a one drop fill process, a sealant for a liquid crystal display element, and a liquid crystal display element. The invention is a curable resin composition, which contains a curable resin to be cured by light and/or heat and a polymerization initiator, the curable resin being a crystalline (meth)acrylic acid-modified epoxy resin comprising a (meth)acrylic group and an epoxy group in one molecule.Type: ApplicationFiled: November 18, 2008Publication date: April 9, 2009Applicant: Sekisui Chemical Co., LTD.Inventors: Mitsuru TANIKAWA, Takashi WATANABE, Yuichi OYAMA, Takuya YAMAMOTO, Sadamu UWAGAWA
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Publication number: 20090076181Abstract: The present invention describes the synthesis of solvent soluble copolymers containing multiple unsaturations. These copolymers contain reactive vinyl groups, which can be further reacted in a second stage polymerization. The process involves copolymerization of a vinyl monomer with an inclusion complex of a monomer having multiple unsaturations and a cyclic macromolecular compound to yield soluble polymers. These polymers may be cast into films, membranes or may be converted in micro or nanoparticles and then crosslinked in a second step polymerization.Type: ApplicationFiled: October 24, 2008Publication date: March 19, 2009Applicant: COUNCIL OF SCIENTIFIC AND INDUSTRIAL RESInventors: Mohan G. KULKARNI, Rohini N. Karmalkar, Sunita S. Satav
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Patent number: 7479307Abstract: Disclosed are toner compositions comprised of a polymer, an optional colorant, and an UV light curable oligomer. Also disclosed are methods for producing a UV curable toner compositions, the toner compositions produced thereby, and methods of utilizing the UV curable toner compositions in various painting applications.Type: GrantFiled: November 16, 2006Date of Patent: January 20, 2009Assignee: Xerox CorporationInventors: Mary C. Fromm, Michelle M. Bruzee, Grazyna E. Kmiecik-Lawrynowicz, Pinyen Lin, Chieh-Min Cheng
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Publication number: 20080318188Abstract: The present invention provides polymerizable dental compositions comprising a dimer acid-derived monomer such as a dimer acid-derived di(meth)acrylate monomer.Type: ApplicationFiled: December 29, 2004Publication date: December 25, 2008Applicant: The Regents of the University of ColoradoInventors: Jeffrey W. Stansbury, Christopher N. Bowman, Marianela Trujillo
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Publication number: 20080275153Abstract: The present invention relates to an ultraviolet curable resin of the present invention which is prepared from alkyl(meth)acrylates, glycidyl(meth)acrylate, and substituted or unsubstituted acrylic acid, wherein the resin contains terminal vinyl group in amount of at least 50 wt % based on the resin and its glass transition temperature (Tg) is in a range of from 40˜100° C. The present invention also relates to a resin composition containing the ultraviolet curable resin.Type: ApplicationFiled: August 16, 2007Publication date: November 6, 2008Applicant: CHANG CHUN PLASTICS CO., LTD.Inventors: Kuen-Yuan Hwang, An-Pang Tu, Ping-Chieh Wang, Chie-Wei Yang
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Patent number: 7425587Abstract: A flowable, light-curing underfilling material that is easily visible and distinguishable from the tooth substance. The underfilling material contains at least one polymerizable monomer, at least one polymerization initiator and also 0.3-10% white pigment.Type: GrantFiled: February 3, 2005Date of Patent: September 16, 2008Assignee: Heraecus Kulzer GmbHInventors: Andreas Grundler, Albert Erdrich, Michael Greczmiel, Claus-Peter Ernst
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Patent number: 7405244Abstract: A solvent-free resin composition comprising (a) a polyimide silicone resin having repeating units represented by the following general formulas (1-1) and (1-2), wherein X is a tetravalent organic group, Y is a divalent organic group, and Z is a divalent organic group having an organosiloxane moiety, (b) a reactive diluent, and (c) a photo-polymerization initiator, characterized in that a film of said resin composition with a film thickness of 100 ?m prepared on a quartz glass substrate shows a light transmittance of 80% or higher at wavelengths of from 350 nm to 450 nm.Type: GrantFiled: April 22, 2005Date of Patent: July 29, 2008Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Yoshinori Yoneda, Michihiro Sugo
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Publication number: 20080139688Abstract: The present invention relates to a thiol compound represented by formula (1): wherein R1, R2 and n have the same meanings as in the specification, method for producing the compound, and to a photosensitive composition and a black matrix resist composition using the same which have high sensitivity and excellent property of retaining a line width in fine line patterns at the time of alkaline development, that is, being excellent in development latitude.Type: ApplicationFiled: October 25, 2005Publication date: June 12, 2008Applicant: SHOWA DENKO K.K.Inventors: Hirotoshi Kamata, Mina Onishi, Katsumi Murofushi
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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: 7285310Abstract: An active energy ray curable ink which is quickly polymerized by an active energy ray, high in crosslinking degree of a cured material formed, excellent in adhesive property, low in viscosity, excellent in long-term storability and also excellent in ejection stability, and an ink-jet recording process, an ink cartridge, a recording unit and an ink-jet recording apparatus using such an ink are provided. In the active energy ray curable aqueous ink comprising at least water and a polymerizable material which is radically polymerized by an active energy ray, the polymerizable material is a water-soluble polymerizable material represented by the following general formula (I).Type: GrantFiled: September 6, 2005Date of Patent: October 23, 2007Assignee: Canon Kabushiki KaishaInventors: Tsuyoshi Kanke, Hiromitsu Kishi, Hiromichi Noguchi, Yutaka Kurabayashi
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Patent number: 7250238Abstract: Disclosed are toner compositions comprised of a polymer, an optional colorant, and an UV light curable oligomer. Also disclosed are methods for producing a UV curable toner compositions, the toner compositions produced thereby, and methods of utilizing the UV curable toner compositions in various painting applications.Type: GrantFiled: December 23, 2003Date of Patent: July 31, 2007Assignee: Xerox CorporationInventors: Mary C. Fromm, Michelle M. Bruzee, Grazyna E. Kmiecik-Lawrynowicz, Pinyen Lin, Chieh-Min Cheng
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Patent number: 7226957Abstract: A method for producing polymers with controlled molecular weight and desired end functionalities and the resulting polymers. The method comprises a) forming a microemulsion comprising monomer, water, and an effective amount of an effective surfactant, b) adding to the microemulsion an amount of a water-soluble photo-initiator system wherein the initiator system produces one type of monomer-soluble radical active centers and wherein the radical active centers contain desired end group functionalities for a polymer or oligomer, and c) illuminating the microemulsion to photoinitiate polymerization of the monomer wherein the illuminating is according to a temporal and spatial illumination scheme, and wherein the amount of the initiator system and the temporal illumination scheme are chosen to produce a desired molecular weight of the polymer or oligomer. The microemulsion can further comprise an effective amount of an effective co-surfactant. The method can be used to produce polymers and copolymers.Type: GrantFiled: November 3, 2003Date of Patent: June 5, 2007Assignee: University of Iowa Research FoundationInventors: Alec Scranton, Kaveri Jain
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Patent number: 7153892Abstract: Disclosed are environmentally friendly coating compositions for coating thermoplastic olefin objects and which are curable using ultraviolet and visible radiation. Even if the coating compositions are applied to an unprimed surface, the resulting cured compositions have excellent adhesion. The cured coatings have improved adhesion properties and clear coat embodiments have improved clarity properties. In addition, methods are disclosed for coating surfaces, or at least a portion of the surfaces, and curing of the coated surface to obtain partially or fully cured coated surfaces are also disclosed. Furthermore, articles of manufacture incorporating fully cured coated surfaces are disclosed, including, for example motor-vehicle bumpers. Also disclosed are methods, processes, production lines, articles of manufacture, and factories which incorporate these environmentally friendly coating compositions.Type: GrantFiled: May 12, 2005Date of Patent: December 26, 2006Assignee: Ecology Coating, Inc.Inventor: Sally W. Ramsey
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Patent number: 7125931Abstract: A thermosetting composition that includes an ungelled copolymer composition and a crosslinking agent. The ungelled copolymer composition includes a functional group-containing copolymer that includes segments of alternating residues derived from a donor monomer composition comprising an acceptor monomer composition. The donor monomer composition includes one or both of isobutylene and diisobutylene, and the acceptor monomer composition includes acrylic monomers and monomers containing functional groups. The ungelled copolymer composition is substantially free of transition metals and Lewis acids, and the copolymer is substantially free of maleate-type monomer residues and fumarate-type monomer residues. The crosslinking agent has at least two functional groups that are reactive with the functional groups of the copolymer. The thermosetting composition may be in liquid, powder, or dispersed form and may be applied by traditional or electrocoating methods.Type: GrantFiled: July 9, 2004Date of Patent: October 24, 2006Assignee: PPG industries Ohio, Inc.Inventors: Simion Coca, Edward R. Coleridge, Gregory J. McCollum, James B. O'Dwyer, James E. Poole, Victoria A. Trettel
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Patent number: 7019041Abstract: A composition that includes a copolymer containing residues having the following structural units (I): where n is an integer from 1 to 10,000; R1 is linear or branched C1 to C4 alkyl; R2 is selected from the group consisting of methyl, linear, cyclic, or branched C2 to C20 alkyl, alkenyl, aryl, alkaryl, and aralkyl; and R3 is a moiety comprising a group that is capable of undergoing a polymerization reaction when exposed to actinic radiation or ionizing radiation. The composition may be used to coat a substrate by providing a substrate; applying a layer of a radiation-curable composition that includes the copolymer described above over at least a portion of a surface of the substrate; and curing the radiation-curable composition by exposing the layer to actinic radiation in an amount sufficient to effect curing of the radiation-curable composition.Type: GrantFiled: February 4, 2003Date of Patent: March 28, 2006Inventors: Edward R. Coleridge, Roy E. Dean, M. Lisa Perrine, Truman F. Wilt, Michael J. Ziegler
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Patent number: 6897248Abstract: The present invention discloses an ultraviolet light curable ferromagnetic composition and method for making such a composition that may be used to produce a ferromagnetic coating on a suitable substrate. These coatings may be used to produce printed capacitors and inductors. The disclosed composition does not contain any significant amount of volatile organic solvents that do not become incorporated in the active layer after curing.Type: GrantFiled: February 24, 2004Date of Patent: May 24, 2005Assignee: Allied PhotoChemical, Inc.Inventor: Roy C. Krohn
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Patent number: 6887918Abstract: A fast-curing, low viscosity composition for coating an optical waveguide, more specifically, an optical fiber, and optical fibers coated therewith are disclosed. The coating composition is a radiation curable composition containing: a radiation curable oligomer, a free radical photoinitiator, and a mixture of reactive diluents including a low molecular weight (meth)acrylate having tri-, tetra-, penta- or higher functionality.Type: GrantFiled: October 8, 2002Date of Patent: May 3, 2005Assignee: AlcatelInventors: Igor V. Khudyakov, Michael B. Purvis, Robert J. Overton
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Patent number: 6866899Abstract: A two-step method of polymerizing a composition containing a free radical photoinitiator includes the sequential steps of exposing the composition to a first radiation source having a maximum spectral output occurring at a wavelength of greater than 300 nm and, thereafter, exposing the composition to a second radiation source having a maximum spectral output occurring at a wavelength of less than 300 nm.Type: GrantFiled: December 21, 2001Date of Patent: March 15, 2005Assignee: 3M Innovative Properties CompanyInventor: Robin E. Wright
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Patent number: 6805917Abstract: The present invention discloses an ultraviolet light curable decorative metallic composition and method for making such a composition that may be used to produce a decorative metallic coating on a substrate. The composition comprises a novolac epoxy acrylate prepolymer, a photoinitiator and a metallic pigment. The disclosed composition does not contain any significant amount of volatile organic solvents.Type: GrantFiled: June 5, 2002Date of Patent: October 19, 2004Inventor: Roy C. Krohn
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Patent number: 6790874Abstract: The invention relates to thermoplastic polyolefin compositions having enhanced surface durability and products thereof which include a thermoplastic polyolefin base component at least one radiation-crosslinkable component present in an amount sufficient to enhance the surface durability of the thermoplastic polyolefin component when radiation-cured and at least one photoinitiator present in an amount sufficient to initiate crosslinking of the radiation-crosslinkable component upon exposure of the thermoplastic polyolefin composition to radiation.Type: GrantFiled: July 31, 2002Date of Patent: September 14, 2004Assignees: Solvay Engineered Polymers, Ciba Specialty Chemicals CorporationInventors: Edmund K. Lau, Satchit Srinivasan, Peter J. Perron, Peter S. Solera, Anthony DeBellis, Chia-Hu Chang, Gerald Capocci, Joseph Puglisi, Douglas Horsey
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Patent number: 6770685Abstract: When a resin for manufacturing ultraviolet or electron ray curable optical fiber ribbon is prepared by properly mixing a photopolymerizable urethane acrylate oligomer containing polydimethylsiloxane, monomer, photoinitiator, leveling/defoaming agent, and antioxidant, optical loss caused by bending due to surface friction in the stacking process during ribbon bonding can be minimized by increasing tensile strength and surface slipping characteristics and by minimizing the shrinkage of resin when the it is cured.Type: GrantFiled: October 17, 2000Date of Patent: August 3, 2004Assignee: SSCP Co., Ltd.Inventors: Se-Lee Chang, Jung-Hyun Oh, Woo-Jeong Oh, Ki-Sung Jung
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Patent number: 6716893Abstract: The present invention discloses an ultraviolet light curable ferromagnetic composition and method for making such a composition that may be used to produce a ferromagnetic coating on a suitable substrate. These coatings may be used to produce printed capacitors and inductors. The disclosed composition does not contain any significant amount of volatile organic solvents that do not become incorporated in the active layer after curing.Type: GrantFiled: July 11, 2002Date of Patent: April 6, 2004Assignee: UV Specialties, Inc.Inventor: Roy C. Krohn
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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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Patent number: 6596786Abstract: There is provided a radiation-curable coating composition containing oligomers that each have two end groups X1 and X2, wherein the end groups X1 and X2, which may be the same or different, are a photoinitiator group or an adhesion promoter group. The coating composition may exclude the presence of non-reactive photoinitiator groups and non-reactive adhesion promoter groups, each of which would fail to covalently bond itself to an oligomer backbone.Type: GrantFiled: August 17, 2001Date of Patent: July 22, 2003Assignee: AlcatelInventors: Michael B. Purvis, Igor V. Khudyakov, Bob Overton, Todd W. Gantt
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Publication number: 20030130369Abstract: A two-step method of polymerizing a composition containing a free radical photoinitiator includes the sequential steps of exposing the composition to a first radiation source having a maximum spectral output occurring at a wavelength of greater than 300 nm and, thereafter, exposing the composition to a second radiation source having a maximum spectral output occurring at a wavelength of less than 300 nm.Type: ApplicationFiled: December 21, 2001Publication date: July 10, 2003Applicant: 3M Innovative Properties CompanyInventor: Robin E. Wright
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Patent number: 6586493Abstract: Disclosed are hyaluronate-containing hydrogels having angiogenic and vascularizing activity and pre-gel blends for preparing the hydrogels. The hydrogels contain a cross-linked matrix of a non-angiogenic hyaluronate and a derivatized polysaccharide material, in which cross-linking is effected by free-radical polymerization. Kits for preparing the hydrogels are also disclosed.Type: GrantFiled: March 7, 2001Date of Patent: July 1, 2003Assignee: Arizona Board of Regents Arizona State UniversityInventors: Stephen P. Massia, Julie Trudel
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Patent number: 6583196Abstract: A high refractive index composition comprising a core resin mixture comprising a first compound of formula (I), a second compound of a poly(ethylene glycol) di(meth)acrylate of formula (II) and a reactive diluent to provide enhanced impact resistance and refractive index.Type: GrantFiled: December 27, 2000Date of Patent: June 24, 2003Assignee: Rodenstock North America, Inc.Inventor: Qiang Zheng
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Patent number: 6500875Abstract: An ink for ink-jet recording contains a coloring agent, a polymerizable oligomer, water, and a photopolymerization initiator having a solubility in water of 3 percent by weight or more. Another ink for ink-jet recording contains a coloring agent, a polymerizable oligomer having at least two acryloyl groups and a solubility in water of 10 percent by weight or more, a photopolymerization initiator, and water. The specified polymerizable oligomer or photopolymerization initiator reduces bleeding of the ink on recording media.Type: GrantFiled: October 17, 2001Date of Patent: December 31, 2002Assignee: Canon Kabushiki KaishaInventor: Hiromichi Noguchi
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Patent number: 6488882Abstract: The invention relates to thermoplastic polyolefin compositions having enhanced surface durability and products thereof which include a thermoplastic polyolefin base component at least one radiation-crosslinkable component present in an amount sufficient to enhance the surface durability of the thermoplastic polyolefin component when radiation-cured and at least one photoinitiator present in an amount sufficient to initiate crosslinking of the radiation-crosslinkable component upon exposure of the thermoplastic polyolefin composition to radiation.Type: GrantFiled: December 11, 2000Date of Patent: December 3, 2002Assignees: Solvay Engineered Polymers, Ciba Specialty Chemicals CorporationInventors: Edmund K. Lau, Satchit Srinivasan, Peter J. Perron, Peter S. Solera, Anthony DeBellis, Chia-Hu Chang, Gerald Capocci, Joseph Puglisi, Douglas Horsey
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Patent number: 6451869Abstract: Cyclopentadienylplatinum (IV) compounds having C7-20 aromatic radical substitution on the cyclopentadienyl ring have been found to impart enhanced cure speed and shelf-life stability to irradiation-curable silicone mixtures.Type: GrantFiled: September 13, 2000Date of Patent: September 17, 2002Assignee: General Electric CompanyInventor: Matthew David Butts
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Patent number: 6451870Abstract: The present invention relates to dual curing silicone compositions which are capable of cross-linking when subjected to ultraviolet (“UV”) or visible (“VIS”) light and/or by a moisture condensation method. When cured, these compositions have excellent adhesion to a variety of substrates. These are particularly useful in potting and coating applications.Type: GrantFiled: December 14, 2000Date of Patent: September 17, 2002Assignee: Henkel Loctite CorporationInventors: Alfred A. DeCato, Hsien-Kun Chu
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Patent number: 6429235Abstract: An energy-curable polymer-forming composition for making a pressure sensitive adhesive includes an unsaturated oligomer resin and an adhesive promoter which increases the peel strength of the adhesive without reducing its tack. The composition also includes a tackifier and various other optional components such as photoinitiator, chain extender, reactive diluent and the like.Type: GrantFiled: September 15, 1999Date of Patent: August 6, 2002Assignee: Cognis CorporationInventors: Ulrike Varlemann, Ning Chen, Arifin Marzuki, Ramesh Narayan
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Patent number: 6384100Abstract: A method for producing an acrylic graft polymer on the surface of a polyolefin article is disclosed. The method comprises the steps of immersing the polyolefin article in a solution of a photoinitiator in a volatile solvent, allowing the volatile solvent in the photoinitiator solution to vaporize, immersing the polyolefin article in a solution of an acrylic monomer, and subjecting the polyolefin article, while in a suitable atmosphere, which can be air or can be inert, to ultraviolet irradiation to cause the acrylic monomer to graft to the polyolefin surface. A method which involves subjecting a polyolefin article to corona discharge, immersing the article, after corona discharge treatment, in a solution of a photoinitiator and an acrylic monomer in a volatile solvent, and subjecting the article to ultra violet irradiation to cause the acrylic monomer to graft to the polyolefin surface is also disclosed. The latter method improves the ammonia trapping capacity of the grafted article.Type: GrantFiled: October 27, 2000Date of Patent: May 7, 2002Assignee: Hollingsworth + Vose CompanyInventor: Wai Ming Choi
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Patent number: 6335382Abstract: An ultraviolet-curable adhesive having an excellent moisture resistance and suitable for bonding optical disks having an information recording layer (vapor deposition layer), particularly optical disks having a thick vapor deposition layer, which contains, as essential components, (A) N-vinylpyrrolidone, (B) a urethane (meth)acrylate oligomer derived from a caprolactone-based polyol, an alicyclic diisocyanate and (meth)acrylic acid, and (C) a photopolymerization initiator containing (C-1) a photopolymerization initiator composed of only a carbon atom, a hydrogen atom and an oxygen atom without containing a nitrogen atom, a sulfur atom and a phosphorus atom and (C-2) a photopolymerization initiator containing a nitrogen atom and/or a sulfur atom in a (C-1)/(C-2) ratio of 70/30 to 100/0 by weight.Type: GrantFiled: January 6, 2000Date of Patent: January 1, 2002Assignee: Nagase-Ciba Ltd.Inventor: Takafumi Iida
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Patent number: 6326414Abstract: An ultraviolet-curable adhesive for bonding optical disks, which comprises (A) a radical-polymerizable vinyl compound, (B) an &agr;-hydroxyalkylphenone compound as a photopolymerization initiator, and (C) 2-methyl-1-[4-(methylthio)phenyl]-2-morpholino-propane-1-one, and which can provide optical disk products which are small in warping of disks, retain sufficient performances even under high temperature and high humidity and have a good appearance.Type: GrantFiled: February 29, 2000Date of Patent: December 4, 2001Assignee: Nagase Chemtex CorporationInventor: Takafumi Iida
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Patent number: 6309585Abstract: A high refractive index composition comprising a core resin mixture comprising a mixture of ethoxylated bisphenol A di(meth)acrylates and/or their derivatives having variable degrees of ethoxylation to provide enhanced impact resistance and refractive index.Type: GrantFiled: April 23, 1999Date of Patent: October 30, 2001Assignee: Rodenstock North America, Inc.Inventor: Qiang Zheng
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Patent number: 6291543Abstract: A surfacially ultraviolet radiation-crosslinked article formed of a homogeneous composition including an elastoplastic material, a cross-linker component that is cross-linkable by free-radical polymerization, and a free-radical source material generating free radicals in exposure to ultraviolet radiation, wherein the elastoplastic material is surfacially cross-linked by exposure to ultraviolet radiation, wherein the sub-surface bulk volume of the article is non-cross-linked, and the article is resiliently deformable from and resiliently recoverable to a shape of the article when it was exposed to ultraviolet radiation for surfacial cross-linking thereof. The article is particularly amenable to embodiment as a catheter, or other similar medical device for cardiovascular or other medical procedures.Type: GrantFiled: May 24, 2000Date of Patent: September 18, 2001Assignee: Polyzen, Inc.Inventor: Tilak M. Shah
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Patent number: 6258870Abstract: 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: January 13, 1997Date of Patent: July 10, 2001Assignee: Board of Regents, The University of Texas SystemsInventors: Jeffrey A. Hubbell, Chandrashekhar P. Pathak, Amarpreet S. Sawhney, Neil P. Desai, Syed F. A. Hossainy
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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: 6239189Abstract: A radiation-polymerizable composition contains at least one radiation curable acrylate resin oligomer prepared by reacting an alkoxylated polyol with a first acid component which includes an ethylenically unsaturated carboxylic acid; and a rheology modifier prepared by reacting a diepoxide with a second acid component which includes an ethylenically unsaturated carboxylic acid or reactive derivative thereof in the presence of a polyamide based on a polymerized fatty acid. The ethylenically unsaturated carboxylic acids of the first and second acid components are preferably acrylic acid or methacrylic acids. The diepoxide is preferably a diglycidyl ether such as bisphenol A. Colorants such as pigments or dyes optionally may be incorporated into the composition to form a printing ink which is curable by ultraviolet (UV) or electron beam radiation.Type: GrantFiled: March 27, 1998Date of Patent: May 29, 2001Assignee: Henkel CorporationInventors: Ramesh Narayan, Miguel Dones, Theresa Miller
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Patent number: 6210517Abstract: A radiation curable precursor coating composition for the preparation of a non-blocking, heat activatable adhesive includes a curable acrylic material, a curable elastomeric material, and a hydrocarbon tackifier material having a softening temperature ranging from approximately 50° C. to approximately 200° C., wherein when the acrylic material and the elastomeric material are cured, the coating composition is non-blocking at room temperature, but when the coating composition is heated to a temperature above both the softening temperature of the hydrocarbon tackifier and the Tg of the coating composition, the coating composition becomes adhesive.Type: GrantFiled: April 13, 1999Date of Patent: April 3, 2001Assignee: Diversified Chemical Technologies, Inc.Inventors: Rajan Eadara, Mooil Chung, David Wen-Lung Chang, Weichen Chi
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Patent number: 6204303Abstract: The present invention provides a novel UV curable composition for forming thermally conductive interface and a method of using the same. The composition is used to promote the transfer of heat from a source of heat such as an electronic device to a heat dissipation device such as a heat sink. The composition comprises by weight from about 35% to about 75% of a UV curable acrylate material, from about 0.5% to about 15% catalyst, from about 10% to about 30% hydrocarbon solvent and from about 20% to about 70% conductive filler.Type: GrantFiled: September 28, 1999Date of Patent: March 20, 2001Assignee: Ferro CorporationInventors: Jesus E. Osuna, Keith M. Mason, Vernon E. Stygar
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Patent number: 6201036Abstract: A light-curable polymer material for making an intraocular lens is a mixture of components consisting of oligourethanemethacrylate, octylmethacrylate, oligocarbonatemetharcrylate, 2,2-dimethoxy-2-phenylacetophenone and 2,4-ditretbutylortoquinone, wherein the aforesaid components are taken in the following weight % ratio: 2,2-dimethoxy-2-phenylacetophenone 0.1-0.7 2,4-ditretbutylortoquinone 0.001-0.006 octylmethacrylate 8-42 oligocarbonatemethacrylate 2-8 oligourethanemethacrylate balance. Also proposed are a method for making an elastic intraocular lens in which the aforesaid compounds are used as the initial components, and an elastic intraocular lens produced by this method.Type: GrantFiled: July 20, 1999Date of Patent: March 13, 2001Assignee: Mezhoiraslevoi Nauchno-Tekhnichesky Komplex “Mikrokhirurgia Glaza”Inventors: Svyatoslav Nikolaevich Fedorov, Leonid Feodosievich Linnik, Valery Mikhailovich Treushnikov, Elena Alexandrovna Viktorova, Alexandr Alexandrovich Karavaev