With Ethylenic Reactant Patents (Class 522/96)
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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: 6426034Abstract: A liquid, radiation-curable coating suitable for coating thermoplastic substrates is described. The coating composition can be formulated to achieve very low gloss at both high and low angles of incidence, and is suitable for application to moldable thermoplastic sheet, and in particular is suitable for application to thermoplastic olefin moldable sheet. Such coatings are useful in protecting thermoplastic substrates and achieving a low-gloss surface in a wide variety of applications including automotive interior parts, furniture, and artificial leather articles.Type: GrantFiled: October 31, 2000Date of Patent: July 30, 2002Assignee: Lilly Industries, Inc.Inventors: Jerry McComas, Peter Clark
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Patent number: 6426373Abstract: Among other things, a photopolymerizing one-component dental material is prepared, containing: 1) 80-10 weight-% of at least one polyfunctional urethane methacrylate and/or at least one polyfunctional urethane acrylate, 2) 10-30 weight-% of at least one polyfunctional acrylate resin, 3) 10-30 weight-% of at least one reactive thinner, 4) 0-20 weight-% of bis-GMA and/or at least one ethoxylated bisphenol-A-dimethacrylate, 5) 0-10 weight-% of at least one filler, 6) 0-1 weight-% of at least one photoinitiator, and. 7) 0-1 weight-% of at least one color pigment.Type: GrantFiled: August 12, 1999Date of Patent: July 30, 2002Assignee: Heraeus Kulzer GmbH & Co. KGInventors: Frank Stange, Albert Erdrich, Novica Savic, Teresa Puchalska
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Publication number: 20020099110Abstract: The present invention relates to radiation-curable compositions that after cure release fully from a matrix material while maintaining other desirable qualities of radiation-cured compositions. These radiation-curable compositions include at least one radiation-curable oligomer and at least one oligomeric photoinitiator. These compositions can be formulated, for example, to serve as protective coatings for substrates manufactured from a wide variety of including glass, plastic, ceramic, metal and wood. The compositions of the present invention are preferably designed for use as an optical fiber coating (including inner primary and, colored or uncolored, secondary coatings as well as other coatings which include inks, matrix materials and the like) or related optical fiber protective materials.Type: ApplicationFiled: December 30, 1999Publication date: July 25, 2002Inventors: TYSON NORLIN, JAMES J. SCHOUTEN, JOHN SOUTHWELL, ANTHONY TOUSSAINT
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Patent number: 6423809Abstract: The invention provides a polyurethane type polymeric material for coating optical fibers, based on a fluorinated diol with formula I: CnF2n+1—A—CH2OCH2—C (CH2OH)2—R where n is 2 to 20, and A signifies —CH═CH or —CH2CH2—, and R is an alkyl group containing 1 to 4 carbon atoms. The invention also provides a fiber coated with this polymer which has been light-cured, and a fiber drawing method comprising a step of coating the fiber with a material of the invention.Type: GrantFiled: February 12, 2001Date of Patent: July 23, 2002Assignee: AlcatelInventors: Sophie Vanpoulle, Gérard Orcel, Bob J. Overton, Marie-José Lina, Eric Lacroix
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Patent number: 6423472Abstract: Butadiene-polyether prepolymers which can be used in photopolymer resins are prepared by reacting butadiene homopolymer with a stoichiometric excess of isocyanate and then reacting the product with polyether diol. Thereafter the composition is reacted with hydroxyalkyl(meth)acrylate and alkyldialkanolamine. Flexographic printing plates may be prepared using photopolymer resin comprising butadiene-polyether prepolymers.Type: GrantFiled: March 24, 2000Date of Patent: July 23, 2002Assignee: MacDermid Graphic Arts, Inc.Inventors: Ronald James Kumpfmiller, Martin Lewis Carter
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Patent number: 6420451Abstract: Curable compositions that are particularly suitable for coating plastic ophthalmic lenses includes (a) 20% to 80% of a first acrylated aliphatic urethane; (b) 5% to 50% of a monofunctional acrylate; (c) (i) 2% to 30% of a second acrylated aliphatic urethane or (ii) 2% or 25% of a multifunctional acrylate or (iii) a combination of (i) and (ii); (d) 1% to 30% of a colloidal metal oxide; (e) 1% to 20% of a photoinitiator; and (f) a solvent, with the percentages based on weight. The cured composition provides superior abrasion and impact resistance as well as protection against environmental and chemical agents. In addition, the UV curable compositions are capable of forming films on various substrates; the film has excellent compatibility and adhesion to AR coatings that are applied thereon. No primer coating is required.Type: GrantFiled: December 11, 2000Date of Patent: July 16, 2002Assignee: Sola International, Inc.Inventors: Shi Lin, Sunder Ram
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Patent number: 6417273Abstract: A monomer composition which provides a plastic optical material having high refractive index and Abbe number, a low specific gravity and excellent physical properties, such as dyeing properties, heat resistance, impact resistance and the like. The composition comprises a di(meth)acrylate compound, divinylbenzene and/or divinylbiphenyl, a crosslinking-type isocyanate compound, a polythiol compound having two or more thiol groups, and a thiourethane bonding accelerating compound. The plastic optical material obtained by the reaction of the above composition with a radical polymerization initiator is used as a material for a lens.Type: GrantFiled: January 23, 2001Date of Patent: July 9, 2002Assignee: NOF CorporationInventors: Yasumi Koinuma, Katsuyoshi Tanaka
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Patent number: 6413698Abstract: A photohardenable resin composition comprising (A) a urethanated acrylic compound represented by formula (I): (A)a—C—(R)4−a wherein R is H or alkyl; a is 3 or 4; and A represents a group of formula (II): wherein D represents —CH2CH2O—, —CH2CH(CH3)O—, —CH2CH2COO— or —(CH2)6COO—; E represents —CH2CH2O—, —CH2CH(CH3)O—, —COCH2CH2O— or —CO(CH2)6O—; G represents a diol or triol residual group; J represents a divalent or trivalent and substituted or unsubstituted hydrocarbon group; L represents —(CH2CH2O)h— (h: integer of 1 to 4), —(CH2CH(CH3)O)j— (j: integer of 1 to 4), or —(CH2CH2O)k—(CH2CH(CH3)O)m— (k, m: integer of 1 to 3 (k+m=2, 3 or 4); b, c, and d are each 0 or 1 (b+c+d=1, 2 or 3); e is 0, 1 or 2; f is 0 or 1 (e+f=1 or 2); and g is 1 or 2, and (B) a radical polymerizable compound at a (A) : (B) rType: GrantFiled: January 6, 2000Date of Patent: July 2, 2002Assignees: Teijin Seiki Co., Ltd., Takemoto Yushi Kabushiki Kaisha, Shin-Nakamura Chemical Co., Ltd.Inventors: Yorikazu Tamura, Tsuneo Hagiwara, Makoto Ohtake, Minoru Shinoda, Toshiharu Suzuki, Tatsuhiko Ozaki, Yasushi Ishihama, Takayuki Nakamura
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Patent number: 6413629Abstract: An easy adhesion film for a transparent conductive thin film comprises a transparent polymer film and an easy adhesion layer formed on the transparent polymer film, wherein the easy adhesion layer comprises at least an ionizing radiation curable resin binder, a (meth)acrylate copolymer binder and polymethyl methacrylate resin particles. The easy adhesion film has high durability, transparency and anti-Newton ring property when provided with a transparent conductive thin film.Type: GrantFiled: February 29, 2000Date of Patent: July 2, 2002Assignee: Kimoto Co., Ltd.Inventor: Yoshihisa Kimura
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Patent number: 6413696Abstract: The present invention relates to novel resin compositions containing at least one solid or liquid actinic radiation-curable and cationically polymerizable organic substance, an actinic radiation-sensitive initiator for cationic polymerization, an actinic radiation-curable and radical-polymerizable organic substance and an actinic radiation-sensitive initiator for radical polymerization. The actinic radiation-curable and cationically polymerizable organic substance is at least one glycidylether of a polyhydric aliphatic, alicyclic or aromatic alcohol having at least three epoxy groups with epoxy equivalent weight between 90 and 800 grams per equivalent, at least one solid or liquid alicyclic epoxide with an epoxy equivalent weight between 90 and 330 grams per equivalent having at least two epoxy groups and monomer purity greater than about 90% by weight, or at least a solid or liquid epoxycresol novolac or epoxyphenol novolac having epoxy equivalent weight between 130 and 350, or mixtures thereof.Type: GrantFiled: June 22, 2000Date of Patent: July 2, 2002Assignee: Vantico Inc.Inventors: Thomas H. Pang, Anastasios P. Melisaris, Wang Renyi, John W. Fong
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Patent number: 6399670Abstract: In one embodiment the present invention provides a coated substrate comprising a substrate, a radiation-cured coating on at least a portion of the substrate, wherein the coating comprises an inherent macroscopic texture. In another embodiment, the present invention provides a pre-cured coating mixture comprising a radiation-curable resin and an initiator, wherein the radiation-curable resin and the initiator form a pre-cured coating mixture capable of forming a macroscopic texture upon application of the mixture on a substrate. In another embodiment the present invention provides a pre-cured coating mixture comprising a radiation-curable resin, an initiator, and texture-producing particles having an effective size to provide a macroscopic texture upon application of the mixture on a substrate.Type: GrantFiled: January 21, 2000Date of Patent: June 4, 2002Assignee: Congoleum CorporationInventors: Richard C. MacQueen, Loyd J. Burcham, Anthony A. Parker, Deborah A. Sciangola
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Patent number: 6399672Abstract: Radiation curable compositions for coatings, adhesives, inks, and molded articles are disclosed.Type: GrantFiled: June 2, 1999Date of Patent: June 4, 2002Assignee: Sartomer Technologies Co., Inc.Inventors: Gary W. Ceska, James P. Horgan, Thomas W. Hazell, William R. Schaeffer
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Patent number: 6391938Abstract: Light cured nail coatings that are applied to natural nails and/or artificial nail-tips for cosmetic purposes. An optional bond-enhancing compound can be used to strengthen the bond between the light curable coatings and the natural nail. Also, finishing compounds may be used to clean the surface of the uv curable coatings resulting in a high-gloss shine. The methods of applying uv-radiation curable nail coatings, bond-enhancing compounds, and finishing compounds to artificial nail-tips and natural nail are also discussed.Type: GrantFiled: December 17, 1999Date of Patent: May 21, 2002Assignee: Gel Products, Inc.Inventor: Pamela H. Lilley
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Publication number: 20020058146Abstract: Radiation-curable formulations comprisingType: ApplicationFiled: September 9, 1998Publication date: May 16, 2002Inventors: REINHOLD SCHWALM, FRANK VOELLINGER, ERICH BECK, KLAUS MENZEL
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Patent number: 6387976Abstract: Compositions, which are stable on storage, which make it possible to obtain elastomer coatings. The compositions are obtained from a hydroxylated urethane prepolymer and from a mixture of acrylate monomer and oligomers, capable of giving an elastomer by thermal or photochemical radical polymerization; the urethane prepolymer being obtained by condensation of a conjugated diene oligomer comprising hydroxylated endings, optionally mixed with a chain extender, with a polyisocyanate compound. These compositions can be used in the protection of electrical and/or electronic components and generally as coatings for metal surfaces or for plastic surfaces.Type: GrantFiled: May 11, 1999Date of Patent: May 14, 2002Assignee: Elf Atochem, S.A.Inventor: Jean-Jacques Flat
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Patent number: 6384101Abstract: A surface treatment composition of the present invention comprises (A) urethaneacrylate oligomer, (B) acrylate based monomer, (C) photoinitiator, (E) silicon additive, and (E) silica matting agent. The present invention provides a surface treatment composition in which imparts abrasion and scratch resistance to the surface of a soft type urethaneacrylate oligomer decorative floor covering, and ameliorates the problem of low stain resistance caused a low density of elaborate crosslinks by using a small amount of single functional group monomer. The present invention also provides a surface treatment composition in which employs only hard type urethaneacrylate without single functional group monomer so that cross linking density is increased and the effects of oxygen that prohibits the surface cuing are minimized, resulting in improved stain resistance.Type: GrantFiled: August 6, 1999Date of Patent: May 7, 2002Assignee: LG Chemical Ltd.Inventors: Ho-Zun Park, Min-Ho Son
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Patent number: 6376571Abstract: A fast curing radiation-curable composition useful as coating compositions for inner and outer primary coatings, inks, ribbons other matrix material coating layers for coating and surrounding optical fibers. The improved radiation-curable compositions, having a propoxylated monomer or oligomer component, demonstrate unexpectedly fast cure speeds while providing strong adhesion characteristics to a variety of substrates and can also be used as a general radiation-curable adhesive or can be adapted for use in the specialized process of digital versatile disk (DVD) production.Type: GrantFiled: March 6, 1998Date of Patent: April 23, 2002Assignee: DSM N.V.Inventors: Chander P. Chawla, Gerry K. Noren
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Patent number: 6362249Abstract: A radiation-curable, optical fiber coating composition has enhanced color stabilization and is formulated from a composition containing at least one radiation-curable oligomer or monomer. A concentration of urethane and ether linkages in the radiation-curable composition is such that a cured optical fiber coating formed from said radiation-curable composition exhibits a &Dgr;E of about 40 or less after being exposed for 96 hours to 150° C. and then for 144 hours to 180° C. Also provided is a radiation-curable optical fiber coating composition which is substantially urethane-free.Type: GrantFiled: September 4, 1998Date of Patent: March 26, 2002Assignee: DSM Desotech Inc.Inventor: Chander P. Chawla
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Patent number: 6359025Abstract: A radiation-curable composition for optical fiber coatings comprising about 10 wt. % to about 90 wt. % of at least one radiation-curable oligomer (A), about 10 wt. % to about 90 wt. % of at least one radiation-curable monomer diluent (B), and an effective amount of at least one photoinitiator (C) represented by formula (1): wherein Ar1 to Ar3 are aromatic groups which may have one or more substitution groups.Type: GrantFiled: February 28, 2000Date of Patent: March 19, 2002Assignee: DSM N.V.Inventors: Paul Eugene Snowwhite, Timothy Edward Bishop, David Michael Szum, Zen Komiya, Miyuki Ishikawa, Takashi Ukachi
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Publication number: 20020032251Abstract: A UV-curable acrylate base adhesive composition for digital versatile discs and other substrates, a method for bonding verstile digital disc layers together with a UV-curable adhesive, and a digital versatile disc bonded by a UV-curable or a radiation curable adhesive. The adhesive comprises acrylate functional components, non-acrylate reactive diluents (e.g. having acrylamide, or N-vinyl functionality) and thiol compounds.Type: ApplicationFiled: August 24, 1999Publication date: March 14, 2002Inventors: CHAU THI MINH HA, VADIM V. KRONGAUZ, RAJNI JARIA, MICHAEL G. SULLIVAN
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Patent number: 6350790Abstract: The process of the present invention involves forming a series of radiation-curable compositions having uniformly consistent properties. The process involves forming a pre-composition, measuring an in-situ sample of said pre-composition to determine a property of the cured pre-composition and adding at least one adjusting agent to form a radiation-curable composition and repeating this process to form at least one further radiation-curable composition wherein said property value for each of said radiation-curable composition and said at least one further radiation-curable composition are each within a target value range for said property.Type: GrantFiled: May 12, 2000Date of Patent: February 26, 2002Assignee: DSM N.V.Inventors: Timothy E. Bishop, Paul E. Snowwhite, James R. Petisce, John M. Zimmerman, James R. Turner
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Patent number: 6344495Abstract: There is provided a photo-curable resin composition comprising a urethane-modified acrylic resin represented by structural formula (I) or (II) and a release agent as indispensable components: wherein five R1's each independently represent a hydrogen atom or a methyl group, R2 represents a C1-C16 hydrocarbon group, X and Y each represent a straight-chain or branched alkylene group, and, with the sum of l, m, n, and o being 100, l is an integer of 20 to 90, m is an integer of 0 to 50, n is an integer of 10 to 80, and o is an integer of 0 to 20; and wherein Z represents a group having a bulky cyclic structure, six R1's each independently represent a hydrogen atom or a methyl group, R2 represents a C1-C16 hydrocarbon group, X and Y each represent a straight-chain or branched alkylene group, and, with the sum of l, m, n, o, and p being 100, l is an integer of 20 to 90, m is an integer of 5 to 80, n is an integer of 0 to 50, o+p is an integer of 10 to 80, and p isType: GrantFiled: July 29, 1999Date of Patent: February 5, 2002Assignee: Dai Nippon Printing Co., Ltd.Inventors: Kenji Ueda, Satoshi Shioda, Mikiko Hojo
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Publication number: 20020013383Abstract: A method of making radiation-curable, fiber optic materials having extended shelf-life and reduced water content which when suitably cured provide reliable and consistent adhesion characteristics to optical glass fibers.Type: ApplicationFiled: January 29, 2001Publication date: January 31, 2002Inventors: Chander P. Chawla, Steven R. Schmid, John M. Zimmerman, James M. Julian
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Publication number: 20020004537Abstract: A UV-curable acrylate-thiol-ene insulating coating composition for electrical conductors, a method of manufacturing a UV-curable acrylate-thiol-ene insulating coating composition for electrical conductors. The insulating coating being of about 2.5 &mgr;m to about 500 &mgr;m thickness, which cured coating has a dielectric dissipation factor (60Hz, 24° C.) of lower than about 0.05.Type: ApplicationFiled: May 7, 1998Publication date: January 10, 2002Inventors: VADIM V. KRONGAUZ, CHAU T.M. HA, SANGEETA RAMPURIA
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Patent number: 6335079Abstract: Disclosed is an ionizing radiation curable resin composition is provided which is suitable for the production of optics, such as Fresnel lenses, with a high refractive index, possessing good scratch resistance. The ionizing radiation curable resin composition for a Fresnel lens comprises the following components (A) to (D), the radiation curable resin composition providing, upon curing, a cured product having a refractive index of not less than 1.55: A transmission screen prepared using the resin composition is also disclosed. (A) A bisphenol A epoxy(meth)acrylate represented by chemical formula 1 wherein R represents H or CH3 and n is an integer of 1 or more; (B) a monofunctional (meth)acrylate; (C) a bifunctional (meth)acrylate; and (D) a polymer.Type: GrantFiled: February 25, 1999Date of Patent: January 1, 2002Assignee: Dai Nippon Printing Co., Ltd.Inventors: Futoshi Osawa, Tomoaki Mukaiyama, Masayuki Mori
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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: 6335381Abstract: The present invention relates to an aqueous coating composition containing a) a urethane (meth)acrylate having (meth)acryloyl groups and optionally free isocyanate groups, b) optionally a further polyisocyanate, c) a UV initiator which initiates polymerization by a free radical mechanism, and d) one or more aqueous binders containing isocyanate-reactive groups. The present invention also relates to the use of the coating compositions for coating various substrates, especially metal substrates.Type: GrantFiled: April 20, 1999Date of Patent: January 1, 2002Assignee: Bayer AktiengesellschaftInventors: Wieland Hovestadt, Wolfgang Fischer, Manfred Bock, Theodor Engbert, Lothar Kahl
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Publication number: 20010051668Abstract: The present invention relates to a process for preparing urethanes containing (meth)acryloyl groups that are suitable as binders for powder coatings by reacting a polyisocyanate component with a hydroxyl group-containing component that contains at least one compound additionally containing (meth)acryloyl groups in a melt of compounds containing (meth)acryloyl groups, which are crystalline in the solid state, and have a melting point of 30 to 100° C. and a dynamic viscosity at 111° C. of less than 10 Pa·s, at elevated temperature until the NCO content has dropped below 0.5 wt. %.Type: ApplicationFiled: March 16, 2001Publication date: December 13, 2001Inventors: Jan Weikard, Christian Zwiener, Wolfgang Fischer, Peter Thometzek
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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: 6326419Abstract: A water-based, flash-curable ink jet ink that is capable of adhering to plastic substrates such as flexible polyvinyl chloride, the ink comprising: a) at least one water-dispersible or water-soluble acrylate polymerizable material; b) at least one polymerizable material that is capable of softening the substrate in part or in fill and is resistant to hydrolysis; c) at least one colorant such as a pigment, a dye, or both a pigment and a dye; and d) at least one UV photoinitiator.Type: GrantFiled: January 18, 2000Date of Patent: December 4, 2001Assignee: Sericol LimitedInventor: Brian Smith
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Patent number: 6326416Abstract: The present invention relates to a composition for coating optical fibers which contains an oligomer capable of being polymerized, a monomer suitable to control the viscosity of the composition, and an adhesion promoter which includes a compound containing a cyclic structure interposed between at least two reactive silanes which are independently an alkoxysilane or a halosilane. Another composition of the present invention includes an oligomer capable of being polymerized, a monomer suitable to control the viscosity of the composition, an adhesion promoter which includes a compound containing a reactive silane group, and a carrier. The present invention also relates to optical fibers and methods of making such optical fibers using the compositions of the present invention.Type: GrantFiled: December 30, 1999Date of Patent: December 4, 2001Assignee: Corning IncorporatedInventors: Ching-Kee Chien, Edward J. Fewkes, Gregory F. Jacobs, Kenneth R. Jones, Eric H. Urruti, Michael J. Winningham
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Patent number: 6323254Abstract: The present invention relates to binders, which can be cured by free-radical polymerization initiated by UV light, and contain a) 10 to 90 parts by wt. of a polymer which contains, in chemically bound form, both ethylenically unsaturated groups and the reaction product of a resin containing abietic acid with not more than 50% of the OH groups of a polyfunctional alcohol having a molecular weight of less than 500, b) 10 to 90 parts by wt. of one or more mono- di-or oligoesters of (meth)acrylic acid having a molecular weight of less than 800 and c) optionally 0.1 to 10 parts by wt. of a photoinitiator component for the free-radical polymerization wherein the weights of a) and b) add up to 100. The present invention also relates to coating compositions containing these binders which are suitable for the production high-gloss coatings.Type: GrantFiled: January 10, 2000Date of Patent: November 27, 2001Assignee: Bayer AktiengesellschaftInventors: Jan Weikard, Wolfgang Fischer, Manfred Müller
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Patent number: 6323255Abstract: The present invention relates to radiation-curable compositions that after cure provide reduced discoloration, or reduced color degradation, and/or high elongation while maintaining other desirable qualities of radiation-cured compositions. These radiation-curable compositions include at least one radiation-curable oligomer and at least one transesterified and/or high-purity monomer. These compositions can be formulated, for example, to serve as protective coatings for substrates manufactured from a wide variety of including glass, plastic, ceramic, metal and wood. The compositions of the present invention are preferably designed for use as an optical fiber coating (including inner primary and, colored or uncolored, outer primary coatings as well as other coatings which include inks, matrix materials and the like) or related optical fiber protective materials.Type: GrantFiled: September 30, 1998Date of Patent: November 27, 2001Assignee: DSM N.V.Inventor: Paul E. Snowwhite
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Patent number: 6316515Abstract: Described is a preferred UV curable coating composition comprising (exclusive of any solvent present): (a) about 5% to 90% by weight of an acrylated aliphatic urethane having a molecular weight of about 500 to 2000 and comprising an aliphatic urethane based on a polymer of allyl carbomonocycle diisocyanate with alkanepolyol polyacrylates, (b) about 5% to 30% by weight of a multifunctional acrylate having a molecular weight of about 170 to 1000 and containing at least two polymerizable unsaturated groups per molecule; and (c) a photopolymerization initiator and/or sensitizer. Also described are preferred processes of coating a plastic and coated articles involving the preferred coating compositions.Type: GrantFiled: June 7, 1995Date of Patent: November 13, 2001Assignee: Red Spot Paint & Varnish Co., Inc.Inventor: Randall Todd Lake
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Patent number: 6316105Abstract: A radiation curable secondary coating composition for forming a secondary polymeric coating having good hydrophobic properties on a primary polymeric coating on an optical fiber is disclosed. The secondary coating composition is a mixture of a radiation curable composition capable of forming a polymeric coating, such as aliphatic difunctional and trifunctional urethane oligomers, and a hydrophobic agent selected from the group consisting of an aqueous dispersion of negatively charged hydrophobic resin particles, fluoropropylmethylcyclotrisiloxane, fluoropropylmethylsiloxarediol, trifluoropropylsiloxypolydimethylsiloxane, polybutadiene diacrylate and polybutadiene dimethacrylate.Type: GrantFiled: July 27, 1999Date of Patent: November 13, 2001Assignee: AlcatelInventors: Igor V. Khudyakov, Bob J. Overton, Michael Purvis
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Patent number: 6316516Abstract: The present invention relates to a composition for coating optical fibers which contains an oligomer capable of being polymerized, a monomer suitable to control the viscosity of the composition, and an adhesion promoter which includes a compound containing a cyclic structure interposed between at least two reactive silanes which are independently an alkoxysilane or a halosilane. Another composition of the present invention includes an oligomer capable of being polymerized, a monomer suitable to control the viscosity of the composition, an adhesion promoter which includes a compound containing a reactive silane group, and a carrier. The present invention also relates to optical fibers and methods of making such optical fibers using the compositions of the present invention.Type: GrantFiled: April 29, 1999Date of Patent: November 13, 2001Assignee: Corning IncorporatedInventors: Ching Kee Chien, Edward J. Fewkes, Eric H. Urruti, Michael J. Winningham
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Patent number: 6306924Abstract: This invention provides an improved coating composition for glass substrates that comprises a tetrasubstituted compound. The introduction of a tetrasubstituted compound in a coating composition for a glass substrate, and in particular an optical fiber, acts to delay the rate of deterioration of the glass or optical fiber due to moisture, and improves adhesion between the glass substrate and the coating composition. The introduction of a tetrasubtituted compound into a polymeric coating composition also improves the interlayer adhesion when more than one coating is applied to a glass substrate. This invention further relates to an outer primary coating composition or matrix material that comprises an acid functional ethylenically unsaturated monomer.Type: GrantFiled: August 21, 1998Date of Patent: October 23, 2001Assignee: DSM Desotech, Inc.Inventor: David M. Szum
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Patent number: 6306502Abstract: A coating composition forming a abrasion resistant coating comprising (A) an ultraviolet-curable silicone prepared by chemically modifying particulate colloidal silica with a specific silane compound, (B) a monomer mixture comprising a (meth)acrylate having a specific isocyanate skeleton and a urethane poly(meth)acrylate having an alicyclic skeleton, and (C) a photo-polymerization initiator. By using a urethane poly(meth)acrylate having an alicyclic skeleton as part of the component (B) and the component (A) having an enhanced reactivity of chemical modification, the compatibility of the component (A) with the component (B) is improved to give a cured coating with excellent wear resistance, weather resistance and durability.Type: GrantFiled: March 19, 1998Date of Patent: October 23, 2001Assignee: Mitsubishi Rayon Co., Ltd.Inventors: Hiroshi Fukushima, Misao Tamura, Osamu Takemoto, Katsumi Yonekura
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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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Publication number: 20010025062Abstract: Radiation-curable inner and outer primary optical fiber coatings are disclosed having both fast cure speed and reduced rates of yellowing. The compositions comprise particular photoinitiators and UV absorbers which are used in amounts to provide the combination of properties. The UV absorber can have ethylenic unsaturation. Outer primary coatings can be formulated to screen inner primary coatings and have fast cure speed.Type: ApplicationFiled: December 22, 2000Publication date: September 27, 2001Applicant: DSM N.V.Inventors: David M. Szum, Chander P. Chawla, Timothy E. Bishop
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Patent number: 6294239Abstract: An ultraviolet-curable adhesive composition comprising a photopolymerization initiator whose molar absorption coefficient at a wavelength of 360-450 nm is at least 400 and an ultraviolet-curable compound. The adhesive composition of this invention can bond substrates which show transmittances of 0.01-20% to all of energy beams of a wavelength of 280-380 nm, to one another.Type: GrantFiled: May 12, 2000Date of Patent: September 25, 2001Assignee: Nippon Kayaku Kabushiki KaishaInventors: Kiyohisa Tokuda, Kazuhiko Ishii
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Patent number: 6291133Abstract: The present invention provides a photosensitive resin composition which comprises an urethane resin obtained by reacting (A) a carboxyl group-containing polymer having an acid value of 30 mg KOH/g or more and a glass transition temperature of 30° C. or more, (B) a compound having two isocyanate groups in one molecule, (C) a compound having two hydroxyl groups in one molecule and (D) a photopolymerizable unsaturated monomer having one hydroxyl group in one molecule, and a photopolymerization initiator, and a resin plate for flexography using the photosensitive resin composition, whereby the photosensitive resin composition having water developing properties, high in sensitivity and impact resilience, and excellent in water resistance, ink resistance and press life of a hardened portion forming a line pattern area of a printing plate material and the resin plate for flexography prepared by the use of the photosensitive resin composition can be provided.Type: GrantFiled: May 25, 1999Date of Patent: September 18, 2001Assignees: Tokyo Ohka Kogyo Co. Ltd., Nippon Shokubai Co. Ltd.Inventors: Toshiya Takagi, Toshimi Aoyama, Koji Kahara, Nobuhiro Kobayashi, Masatoshi Yoshida
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Patent number: 6284185Abstract: An ultraviolet-curable adhesive composition comprising a photopolymerization initiator whose molar absorption coefficient at a wavelength of 360-450 nm is at least 400 and an ultraviolet-curable compound. The adhesive composition of this invention can bond substrates which show transmittances of 0.01-20% to all of energy beams of a wavelength of 280-380 nm, to one another such as base boards for an optical disk.Type: GrantFiled: March 9, 2000Date of Patent: September 4, 2001Assignee: Nippon Kayaku Kabushiki KaishaInventors: Kiyohisa Tokuda, Kazuhiko Ishii
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Patent number: 6284835Abstract: Curable coating compositions exhibiting exceptional resistance to high impact damage are described. The composition is formulated using a combination of poly and monofunctional ethylenically unsaturated monomers, oligomers and polymers. The composition can be applied using standard coating application techniques and cured rapidly under initiator dependent curing conditions. The compositions can be formulated to include optical brighteners, pigments, flow agents to enhance coating functionality in selected applications.Type: GrantFiled: July 9, 1999Date of Patent: September 4, 2001Assignee: Lilly Industries, Inc.Inventor: Matthew Ellison
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Patent number: 6268111Abstract: An oligomer is provided having tetraacrylate functionality as well as carboxylic acid functionality. The oligomer is useful as a photopolymerizable binder in photoresists for forming printed circuitry. Particular advantages of the oligomer are found in solder mask-forming compositions which must withstand the conditions of nickel/gold plating.Type: GrantFiled: October 20, 1999Date of Patent: July 31, 2001Assignee: Rohm and Haas CompanyInventors: Lincoln Eramo, Jr., Mitchell G. Male, Robert K. Barr, Daniel E. Lundy
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Patent number: 6265462Abstract: A method of forming a diffusion barrier on an article of a polymer blend of (i) a high surface energy polymer and (ii) a low surface energy polymer. Most commonly the low surface energy polymer is an organosilicon polymer, as a polysilane or a polysiloxane. The surface of the article is exposed to ozone and ultraviolet radiation to form a diffusion barrier.Type: GrantFiled: January 28, 2000Date of Patent: July 24, 2001Assignee: International Business Machines CorporationInventors: Frank Daniel Egitto, Luis Jesus Matienzo, Bruce Otho Morrison, Jr.
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Patent number: 6265476Abstract: Radiation-curable compositions, having high elongation at break and toughness after cure can include the following pre-mixture components: a) a polymer, oligomer or monomer having at least one (meth)acrylate functional group; b) an oligomer or monomer, exclusive of (meth)acrylate functional groups, having an ethylenically unsaturated functional group; and c) an elongation promoter; wherein the composition, after radiation-cure, has an elongation at break of at least about 200%. Glass substrates and optical fibers are coated with the radiation-curable composition. Monofilament fiber or a plurality of fiber filaments, such as sewing thread, are coated with the radiation-curable binder composition, which after cure, demonstrates high elongation at break.Type: GrantFiled: October 4, 1999Date of Patent: July 24, 2001Assignee: DSM N.V.Inventors: Vadim V. Krongauz, Michael G. Sullivan, Stephen C. Lapin, Edward J. Murphy
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Publication number: 20010008691Abstract: The present invention relates to a UV curable resin composition for coating, and especially relates to a UV curable resin composition useful for coating the surface of a polycarbonate resin molded article such as a lump cover for automobiles. In the UV curable resin composition for coating of the present invention, to 100 parts by weight of the film forming components (a) 10 - 70 wt. % of a mono- or bi- functional monomer having a molecular weight of 130 - 700, and having ether bond and one or two acryloyloxy groups per molecule, (b) 5 - 60 wt. % of an aliphatic urethane acrylate oligomer, (c) 10 - 30 wt. % of a methyl methacrylate polymer having a molecular weight of 10000 to 200000, and as necessary, and (d) 5 - 50 wt. % of a polyfunctional monomer having a molecular weight of 250 - 700 and having three or more acryloyloxy groups per molecule, there are mixed 2 - 10 parts by weight of a photopolymerization initiator, and 2 - 20 parts by weight of a UV absorber.Type: ApplicationFiled: February 24, 1999Publication date: July 19, 2001Inventors: TAKASHI ISOGAI, NOBORU OHARA
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Publication number: 20010003031Abstract: There is provided a photocurable resin composition comprising (A) an urethane acrylate having three or four acrylate groups in the molecule, (B) a radical polymerizable compound different from the above urethane acrylate; and (C) a photopolymerization initiator, the weight ratio of the urethane acrylate (A) to the radical polymerizable compound (B) being 80:20 to 10:90; and a production process thereof. The said photocurable resin composition can provide moldings and stereolithographed objects having excellent dimensional accuracy with a small volume shrinkage factor at the time of photo-curing and excellent heat resistance with a high thermal deformation temperature as well as excellent transparency and mechanical properties such as tensile strength.Type: ApplicationFiled: December 15, 2000Publication date: June 7, 2001Applicant: TEIJIN SEIKI CO., LTDInventors: Yorikazu Tamura, Tsuneo Hagiwara