Processes Of Preparing A Solid Polymer From At Least One Nitrogen Containing Monomer; Or Compositions Therefore Patents (Class 522/173)
-
Patent number: 6417243Abstract: In order to offer coatings with improved resistance to solvents which can be prepared by cationic polymerization under irradiation, the choice is made of a composition comprising at least one monomer, oligomer or polymer of general formula (I): in which: A1 is chosen from polyester blocks, polyurethane blocks, hydrocarbon-comprising backbones of mono- or polycarboxylic acid and addition products of a polycarboxylic acid and of a cycloaliphatic diepoxide, m is a number from 1 to 6, R1 is a cycloaliphatic group carrying a hydroxyl group situated in the a position with respect to the oxygen atom to which R1 is bonded, R2 is a second cycloaliphatic group carrying an oxirane group situated at the chain end, and B is chosen from one or more covalent bonds, an oxygen atom and linear, branched or cyclic hydrocarbon-comprising radicals.Type: GrantFiled: July 28, 2000Date of Patent: July 9, 2002Assignee: UCB, S.A.Inventors: Stephan Peeters, Kris Verschueren, Jean-Marie Loutz
-
Patent number: 6410610Abstract: A process for producing water-soluble, cationic polyelectrolytes is described, wherein the polymerization of the water-soluble monomers is initiated at low temperatures using a combination of UV light, photoinitiator and a redox system, and is characterized in that the redox system is capable of initiating the polymerization only at temperatures higher than or equal to 20° C. The polymers have a high molecular weight and a low content of residual monomer.Type: GrantFiled: April 26, 2000Date of Patent: June 25, 2002Assignee: Stockhausen GmbH & Co. KGInventor: Helmut Brehm
-
Patent number: 6403674Abstract: One embodiment of the present invention is a method for synthesizing superabsorbent polyacrylate polymers comprising the steps of providing an acrylate monomer, a multifunctional monomer, and free radical initiator in the absence of a solvent; mixing the acrylate monomer, multifunctional monomer, and free radical initiator to create a solvent free solution; and subjecting the solvent free solution to radiation to create a cross-linked polymer. The product created by this method is also a part of the present invention.Type: GrantFiled: November 17, 2000Date of Patent: June 11, 2002Assignee: Eveready Battery Company, Inc.Inventor: Mark A. Schubert
-
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
-
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
-
Publication number: 20020065336Abstract: A method of making a sterile adhesive composition includes placing a mixture of a polymerizable adhesive monomer and a thickening agent in a container, sealing the container, and sterilizing the mixture and the container. The method provides superior viscosity for the monomer composition. An adhesive composition includes 2-octyl cyanoacrylate and at least one thickener. The sterile adhesive composition is particularly useful as a medical adhesive and can comprise 1,1-disubstituted ethylene monomers, such as &agr;-cyanoacrylates.Type: ApplicationFiled: June 22, 2001Publication date: May 30, 2002Applicant: CLOSURE MEDICAL CORPORATIONInventors: Timothy Hickey, Ubonwan A. Stewart, Jerry Jonn, John S. Bobo
-
Publication number: 20020056949Abstract: This invention relates to the production of trans- parent, shape-memorizing resin films by curing with radiation.Type: ApplicationFiled: October 1, 2001Publication date: May 16, 2002Inventors: Takashi Sasaki, Isao Ishigaki, Kohichiro Kawate
-
Publication number: 20020057885Abstract: Provided is a radiation-curable, glass optical fiber coating composition which when suitably cured exhibits resistance to attack from hydrocarbon gel cable filing material.Type: ApplicationFiled: January 10, 2000Publication date: May 16, 2002Inventors: David M. Szum, Timothy E. Bishop, Steven R. Schmid
-
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
-
Patent number: 6376572Abstract: Use of a composition for preparing by radical route polymeric films having refractive index lower than 1.400, said composition comprising: a) a perfluoropolyether of formula: T′—Rf.T (Ia) b) from 0.1 to 10% by weight of a perfluoropolyether of formula: T—Rf—CH2OH (Ib) c) from 0 to 30% by weight of compounds selected from c1): compounds not containing fluorine: non fluorinated (meth)acrylic esters or vinyl monomers; or c2) compounds containing fluorine: mono(meth)acrylate perfluoropolyethers or perfluoroalkyl mono(meth)acrylates, d) from 0.01 to 10% by weight of a photoinitiator and/or radical initiators, the amount of component a) being the complement to 100 of the composition, with the proviso that defining by B0 the mole number of —CF2CH2OH and by B1 the sum of the moles of the (meth)acrylic end groups, the (B0+B1)/B1 ratio is in the range 1.50-1.01.Type: GrantFiled: June 1, 2000Date of Patent: April 23, 2002Assignee: Ausimont S.p.A.Inventor: Stefano Turri
-
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
-
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
-
Patent number: 6355704Abstract: An antibacterial bonding compositions for dental use, which comprises (A) an antibacterial primer that comprises an antibacterial polymerizable monomer having an ethylenic unsaturated group and at least one or more cationic groups selected from the group consisting of ammonium bases, pyridinium bases and phosphonium bases, and a volatile solvent, and(B) an adhesive composition comprising an acid group having polymerizable monomer, a polymerizable monomer, and a polymerization initiator; and an adhesive compositions for dental use, which comprises (P) an adhesive primer comprising an acid group having polymerizable monomer, a hydrophilic polymerizable monomer, and water, and (Q) a bonding agent comprising a polymerizable monomer, and an acylphosphine oxide compound and an &agr;-diketone compound both serving as a polymerization initiator.Type: GrantFiled: August 19, 1999Date of Patent: March 12, 2002Assignee: Kuraray Co., Ltd.Inventors: Kazumitsu Nakatsuka, Koichi Okada, Satoshi Imazato, Shigeyuki Ebisu, Yasuhiko Tsuchitani
-
Patent number: 6350403Abstract: The present invention relates to a process for the production of three-dimensional articles by stereolithography using a radiation-curable composition comprising a mixture of at least one cationically polymerizable compound and/or at least one free radical polymerizable compound, at least one filler material and at least one photoinitiator for cationic and/or radical polymerization. An organic viscosity stabilizer material may be brought into contact with the composition to substantially delay or prevent undesirable viscosity increase and subsequently premature polymerization. A filler material is optionally added to the composition in an effective amount to at least delay or prevent a significant increase in viscosity and polymerization. The process is particularly suitable for stabilizing resins in stereolithography baths.Type: GrantFiled: May 31, 2000Date of Patent: February 26, 2002Assignee: Vantico Inc.Inventors: Anastasios P. Melisaris, Stephen D. Hanna, Thomas H. Pang
-
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
-
Patent number: 6342542Abstract: A radiation sensitive resin composition containing an alkali-soluble resin, for example a novolak-quinonediazide positive-working radiation sensitive resin composition and a chemically amplified negative-working resin composition, wherein the alkali-soluble resin contains at least an alkali-soluble resin obtained by polycondensation of a compound represented by the following general formula (I) and a phenol if necessary, with an aldehyde. wherein R represents a hydroxyl group or an alkyl group with 1 to 4 carbon atoms, n is 0 or an integer of 1 to 3 and, when n is 2 or 3, each R group may be the same or different.Type: GrantFiled: October 12, 2000Date of Patent: January 29, 2002Assignee: Clariant Finance (BVI) LimitedInventors: Satoshi Kobayashi, Hidekazu Shioda, Haruhiko Itoh
-
Patent number: 6340719Abstract: A process for crosslinking a melt-processed polymer composition comprises the steps of (a) forming a polymerizable mixture comprising (i) at least one monoethylenically-unsaturated monomer or prepolymer and (ii) at least one monoethylenically-unsaturated, blocked mono- or polyisocyanate that is thermally stable at a selected melt processing temperature range and that is thermally deblockable at and above a deblocking temperature that is higher than the selected melt processing temperature range; (b) exposing the polymerizable mixture to transmissive energy to polymerize the mixture to form a polymer composition comprising polymerized units derived from the blocked mono- or polyisocyanate; (c) melt processing the polymer composition at the selected melt processing temperature range to form a melt-processed polymer composition; and (d) during melt processing or thereafter, increasing the temperature of the melt-processed polymer composition to the deblocking temperatures in the presence of at least one isocyanaType: GrantFiled: December 29, 1999Date of Patent: January 22, 2002Assignee: 3M-Innovative Properties CompanyInventors: Siegfried R. Goeb, Andreas H. Graichen
-
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
-
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
-
Publication number: 20010051704Abstract: An object of the present invention is to provide an electrostatic image developing toner having good charge properties, low-temperature fixing properties, offset resistance and blocking resistance as well as good resistance against sticking to a heated roll and wax dispersibility and a novel urethane-modified polyester resin used for the toner.Type: ApplicationFiled: July 3, 2001Publication date: December 13, 2001Inventors: Hiroshi Maekawa, Kazuo Hisamatsu, Yuji Emura, Koichi Ogawa, Katsuhiko Mizushima
-
Patent number: 6329443Abstract: New imido(meth) acrylates of general formula (1), wherein R1, R2 and R3 may be the same or different and each represents H or CH3; R4 to R7 may be the same or different and each represents H or CmH2m+1 (in which m is 1 to 6); and n represents 1 to 4, and radiation-curable compositions prepared from them, easily cured by the irradiation with radiations, particularly ultraviolet rays, to form cured compositions excellent in weather resistance, abrasion resistance and adhesion to a base, and free from the problem of odor.Type: GrantFiled: December 20, 1999Date of Patent: December 11, 2001Assignee: Toagosei CO, Ltd.Inventors: Eiichi Okazaki, Tetsuji Jitsumatsu
-
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
-
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
-
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
-
Patent number: 6316518Abstract: The invention includes a method of increasing polymerization within a condensation polymer. A substantially dry condensation polymer material is provided. The material is exposed to radiation having a frequency less than microwave frequency for a time of at least about 0.5 hour to increase an amount of polymerization within the material. The invention also includes a method of treating a polyamide material. A polymeric polyamide material is provided and exposed to first radiation having a first power intensity. The material is then exposed to second radiation having a second power intensity. The first power intensity is higher than the second power intensity. Additionally, the invention includes an apparatus. The apparatus includes an inlet port through which a feed material enters the apparatus, and an outlet port through which the feed material passes out of the apparatus.Type: GrantFiled: February 3, 2000Date of Patent: November 13, 2001Assignee: Advanced Polymer Technology, Inc.Inventors: L. Myles Phipps, Eric J. Swenson
-
Patent number: 6312799Abstract: The present invention provides a pressure-sensitive acrylic adhesive composition which is excellent in the adhesion to polyester films as an adhesive material having tackiness at ordinary temperature and has such high heat resistance as withstanding solder reflow during mounting.Type: GrantFiled: April 19, 2000Date of Patent: November 6, 2001Assignee: Nitto Denko CorporationInventors: Kazuhito Hosokawa, Masahiro Ohura
-
Patent number: 6310166Abstract: A method of making a sterile adhesive composition includes placing a mixture of a polymerizable adhesive monomer and a thickening agent in a container, sealing the container, and sterilizing the mixture and the container. The method provides superior viscosity for the monomer composition. The sterile adhesive composition is particularly useful as a medical adhesive and can comprise 1,1-disubstituted ethylene monomers, such as &agr;-cyanoacrylates.Type: GrantFiled: August 12, 1999Date of Patent: October 30, 2001Assignee: Closure Medical CorporationInventors: Timothy Hickey, Ubonwan A. Stewart
-
Publication number: 20010034379Abstract: By means of a curing process combining thermal and UV curing it is possible, using compositions comprising (A) a coating system based on a polyacrylate polyol or polyester polyol with melamine, or a polyacrylate polyol and/or polyester polyol with a blocked or unblocked polyisocyanate, or a carboxyl-, anhydride- or amino-functional polyester and/or polyacrylate with an epoxy-functional polyester or polyacrylate, (B) an OH—, NH2—, COOH—, epoxy- or NCO-functional resin containing, in addition, at least one ethylenically unsaturated double bond, which is separated from the functional group by a spacer group, and (C) at least one photoinitiator, to obtain coatings having good surface properties.Type: ApplicationFiled: May 3, 2001Publication date: October 25, 2001Inventor: Andreas Valet
-
Patent number: 6300388Abstract: An ink composition for ink jet printing contains an amino functionalized polyetheracrylate as radiation curable compound.Type: GrantFiled: September 15, 1999Date of Patent: October 9, 2001Assignee: Agfa-GevaertInventors: Emiel Verdonck, Luc Vanmaele
-
Patent number: 6291544Abstract: The present invention provides pure, storage stable, reactive esters of 2-cyanopenta-2,4-dienoic acid and the adhesives and polymers thereof. The monomers of the present invention have the formula: where R is alkyl, alkenyl, alkynyl, alkoxyalkyl, alkenyloxyalkyl, alkynyloxyalkyl, poly(oxyalkyl), aryl, cycloalkyl or a heterocyclyc radical. R may also be one of the foregoing moieties substituted with one or more of the other moieties; this includes the case of the substituent itself being substituted, and may also contain halogens. The reactive monomers of the present invention can be formulated into adhesives by incorporating certain modifiers and additives such as polymeric thickeners, viscocity regulators, plasticizers, thixotrophic agents, compatibilizers, adhesion promoters, pigments and colorants, fillers, deodorants and perfumes. They can also be used in composition with other monomers containing a reactive double bond such as for example cyanoacrylates.Type: GrantFiled: August 10, 1998Date of Patent: September 18, 2001Assignee: Chemence, Inc.Inventor: Dimiter Lubomirov Kotzev
-
Patent number: 6291541Abstract: Solid vinyl ether terminated curing agents for powder coatings can be prepared by reacting an aliphatic diisocyanate with a polyol and then with a hydroxy vinyl ether, or by reacting an aliphatic polyisocyanate with a hydroxy vinyl ether. Powder coatings based on the so prepared curing agents are extremely useful for coating heat sensitive substrates by exposure to ultraviolet light, heat, or both.Type: GrantFiled: June 25, 1999Date of Patent: September 18, 2001Assignee: Morton International Inc.Inventors: Navin B. Shah, Andrew T. Daly
-
Publication number: 20010021727Abstract: Radiation-curable compositions are disclosed which, after cure, are substantially non-yellowing. The compositions are particularly tailored for coating and bundling of optical fibers. A first preferred composition is based on a polyether-type of oligomer diluted with reactive diluents. Isocyanurate structures are included in the composition to raise Tg. A second preferred composition is based on fatty oil comprising (meth)acrylate groups and bisphenol A derivatives comprising (meth)acrylate groups. Photoinitiators can be included to increase cure speed. The formulations do not include material amounts of ingredients which tend to cause yellowing or, in theory, extended conjugation in the cured compositions.Type: ApplicationFiled: March 16, 2001Publication date: September 13, 2001Applicant: DSM N.V.Inventor: David Szum
-
Publication number: 20010020050Abstract: The invention relates to a radiation curable compound being a mono or multi valent carboxylic ester of a compound containing a hydroxyalkylamidegroup and a hydroxygroup in which the carboxylic ester is derived from an &agr;,&bgr;-ethylenically unsaturated carboxylic acid.Type: ApplicationFiled: January 8, 2001Publication date: September 6, 2001Inventors: Johan F.G.A. Jansen, Aylvin J.A.A. Dias, Pascal M.H.P. Tijssen
-
Publication number: 20010018467Abstract: A method of priming a sheet molding compound (SMC) part. The method includes applying a photopolymerizable priming composition to a surface of the SMC part. The priming composition includes a polymerizable component, a photoinitiating component, and a conductive component. The method also includes irradiating the priming composition with light to initiate a polymerization reaction. The priming composition polymerizes on the SMC part substantially without releasing volatile solvents.Type: ApplicationFiled: December 20, 2000Publication date: August 30, 2001Inventor: Robert Dunkle
-
Patent number: 6262140Abstract: Compositions for producing replicated optical components are disclosed. A composition for making a large scale submaster optical component includes a mixture having an acrylated aliphatic urethane oligomer/monomer blend and a tripropylene glycol diacrylate. The mixture is combined with a number of other components including an isobornyl acrylate, an ultraviolet polymerizing varnish, a surfactant, and a photoinitiator. A composition for making a large scale replica optical component includes a mixture having an acrylated aliphatic urethane oligomer/monomer blend and a tripropylene glycol diacrylate. The mixture is combined with an isobornyl acrylate, a &bgr;-Carboxyethyl acrylate, a photoinitiator, and an N-vinyl-2-pyrrolidone. A composition for making a small scale submaster optical component includes an ultraviolet polymarizing varnish and a surfactant.Type: GrantFiled: July 13, 1999Date of Patent: July 17, 2001Assignee: Physical Optics CorporationInventors: Gajendra Savant, Hagop Latchinian
-
Patent number: 6245829Abstract: The invention relates to a radiation curable composition comprising a mono or mulit valent carboxylic ester of a &bgr;-hydroxyalkylamide group containing compound, in which the carboxylic ester is derived from an &agr;,&bgr;-ethylenically unsaturated carboxylic acid. A coating composition based on this composition has a high rate of polymerisation and shows the desired chemical and mechanical properties.Type: GrantFiled: July 29, 1999Date of Patent: June 12, 2001Assignee: DSM NVInventors: Theodoor H. Meij, Marten Houweling, Aylvin J. A. A. Dias, Johan F. G. A. Jansen, Rudolfus A. T. M. Van Benthem
-
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
-
Patent number: 6242101Abstract: Radiation-curable formulations based on ethylenically unsaturated prepolymers and difunctional esters of ethylenically unsaturated carboxylic acids with diols having a linear alkylene chain of 7 to 14 carbon atoms, a process for coating substrates using these radiation-curable formulations, and their use as automotive topcoats.Type: GrantFiled: April 1, 1999Date of Patent: June 5, 2001Assignee: BASF AktiengesellschaftInventors: Reinhold Schwalm, Rainer Königer, Erich Beck, Klaus Menzel, Wolfgang Paulus, Peter Enenkel
-
Patent number: 6221303Abstract: The invention relates to ophthalmic mouldings, especially contact lenses, obtainable by cross-linking a prepolymer that corresponds essentially to formula (1) wherein the variables are as defined in the claims, in the absence or presence of an additional vinyl comonomer.Type: GrantFiled: August 12, 1999Date of Patent: April 24, 2001Assignee: Novartis AGInventor: Bettina Steinmann
-
Patent number: 6218446Abstract: A radiation-curable formulation employs an electrically conductive primary filler, comprised of elements of elongate form and having surfaces that reflect the actinic radiation to which the photoinitiator employed is responsive, and a secondary filler that is electrically semiconducting and is substantially transparent to the actinic radiation; silver-coated cylindrical fibers or rods will typically constitute the primary conductive filler. Solid deposits cured from the formulation may function, for example, as sealing elements, gaskets, solder joints, and coatings.Type: GrantFiled: July 26, 1999Date of Patent: April 17, 2001Assignee: Dymax CorporationInventors: John R. Arnold, Vu V. Lam, Andrew G. Bachmann
-
Patent number: 6191181Abstract: The present invention relates to urethane acrylates, which may be cured with high-energy radiation, in which the urethane acrylates are the reaction product of a) a polyisocyanate component containing 20 to 100 mole %, based on the moles of the polyisocyanate component a), of iminooxadiazine dione group-containing polyisocyanate trimers corresponding to formula A wherein R1, R2and R3 are the same or different and represent linear or branched, C4-C20 (cyclo)alkyl groups and X is the same or different and represents isocyanate groups or isocyanate group-containing radicals that also contain iminooxadiazine dione, isocyanurate, uretdione, urethane, allophanate, biuret or oxadiazine trione groups, wherein R1, R2 and R3 are attached to a nitrogen atom, with b) an alcohol component containing at least one monobasic, hydroxy-functional, linear or branched C1-C12 alkyl ester of (meth)acrylic acid.Type: GrantFiled: November 4, 1999Date of Patent: February 20, 2001Assignee: Bayer AktiengesellschaftInventors: Jan Weikard, Wolfgang Fischer, Frank Richter, Christian Zwiener
-
Patent number: 6174645Abstract: The present invention provides crosslinked polymeric networks that are reversibly crosslinked upon exposure to light of a suitable wavelength. In one embodiment photocrosslinkable branched hydrophilic polymers containing photochromic groups are synthesized. Cinnamylidene groups and derivatives of cinnamylidene are preferably used as the photochromic agents or photocrosslinking agents.Type: GrantFiled: May 3, 1999Date of Patent: January 16, 2001Assignee: University of PittsburghInventors: Alan J. Russell, Eric J. Beckman, Fotios M. Andreopoulos, William R. Wagner
-
Patent number: 6172129Abstract: (Meth)acrylate functional compound which is the reaction product of a cyclic secondary amine and a poly(meth)acrylate having at least three acrylate or methacrylate groups, useful for radiation curable coating or ink composition having low viscosity, low volatility, and high cure rate under radiation. Process of preparing a coating or ink composition using such compound. Radiation cured coating or ink based on such composition. Coated or printed article having such a cured coating or ink based on such composition.Type: GrantFiled: January 29, 1999Date of Patent: January 9, 2001Assignee: Sartomer Technologies, Inc.Inventors: Ming Xin Fan, Gary Ceska, James P. Horgan, Henry C. Miller, Edward A. Jurczak
-
Patent number: 6156815Abstract: 1,2-Disulfones are particularly suitable as thermally and photochemically activatable latent acid catalysts for binder systems which contain at least one acid-curable component.Type: GrantFiled: June 10, 1999Date of Patent: December 5, 2000Assignee: Ciba Specialty Chemicals CorporationInventors: Ekkehard Bartmann, Jorg Ohngemach
-
Patent number: 6143805Abstract: A method for sterilizing a liquid adhesive composition includes subjecting the composition to electron beam irradiation while it is enclosed in a container.Type: GrantFiled: February 18, 1998Date of Patent: November 7, 2000Assignee: Closure Medical CorporationInventors: Timothy Hickey, Ubonwan A. Stewart
-
Patent number: 6143803Abstract: The present invention provides a curable composition for back-protecting material used in making shadow masks which gives a cured film excellent in all of etching resistance, alkali solubility or peelability, and pattern formability even when a second etching is carried out at high temperatures. That is, the present invention provides a curable composition for back-protecting material used at a second etching step in making shadow masks which comprises the following components (a), (b) and (c) and which gives a cured film having alkali solubility or alkali peelability:(a) a compound having one carboxyl group and one (meth)acryloyl group,(b) a tri(meth)acrylate of an alkylene oxide adduct of isocyanuric acid, and(c) (c1) a (meth)acrylate compound having two or more (meth)acryloyl groups, (c2) a chain transfer agent, or a combination of (c1) and (c2).Type: GrantFiled: June 23, 1999Date of Patent: November 7, 2000Assignee: Toagosei Co., Ltd.Inventors: Ichiro Igarashi, Tetsuji Jitsumatsu
-
Resin for an oriented-reinforcement prepreg that can be shaped and molded products that are obtained
Patent number: 6136883Abstract: A modified polyester-polyurethane resin is formed by reacting at least one polyisocyanate at least one polyol polyester that is prepared from at least one diacid or ethylenically unsaturated anhydride and at least one polyhydric alcohol, at least one ethylenically unsaturated monomer, at least one promoter of the decomposition of the catalyst peroxide, at least one catalyst of the isocyanate-alcohol reaction, and at least one hydroxylated (alk)acrylate and is used for the impregnation of oriented reinforcements. The resin makes possible quick molding, at moderate temperature, of parts with high mechanical properties.Type: GrantFiled: February 7, 1996Date of Patent: October 24, 2000Assignee: Cray Valley S.A.Inventors: Yeong-Show Yang, Francette Porato, Serge Lequeux -
Patent number: 6136383Abstract: Radiation-curable preparations comprise at least one polymer which has ethylenically unsaturated double bonds and are used for the coating of mineral moldings.A process for coating mineral moldings, and also mineral moldings which have a coating cured by radiation, are also described.Type: GrantFiled: July 28, 1998Date of Patent: October 24, 2000Assignee: BASF AktiengesellschaftInventors: Manfred Schwartz, Klaus Menzel, Bertold Bechert, Erich Beck, Wolfgang Reich
-
Patent number: 6127445Abstract: The present invention relates to anionic photoinitiator compounds, compositions containing them, and methods of using them having the structure: ##STR1## wherein X and Y are independently selected from the group consisting of a direct single bond and --C(.dbd.O)--, wherein at least one of X and Y is --C(.dbd.O)--;R.sup.1 and R.sup.2 are independently selected from the group consisting of H and substituted phenyl, wherein both R.sup.1 and R.sup.2 are not H;and wherein neither --X--R.sup.1 nor --Y--R.sup.2 is --C(.dbd.O)H. The anionic photoinitiators have improved storage stability, without loss of photosensitivity, even when stored with polymerizable or crosslinkable monomer, oligomer, or crosslinkable polymer species.Type: GrantFiled: November 3, 1998Date of Patent: October 3, 2000Assignee: The University of Georgia Research Foundation, Inc.Inventors: Charles R. Kutal, Yoshikazu Yamaguchi
-
Patent number: 6124371Abstract: The invention relates to a composition comprising polymerizable material and an anionic photocatalyst. The photocatalyst is a photolabile compound able to liberate a strong base having a pK.sub.a .gtoreq.12. The catalyst can be illustrated by the structural formula Z-A wherein Z is a photolabile group and A is a strong base, for example, a nitrogen containing compound such as, a secondary amine, a guanidine or amidine and Z is covalently bound to A.Type: GrantFiled: August 21, 1998Date of Patent: September 26, 2000Assignee: DSM N.V.Inventors: Dirk A. W. Stanssens, Johan F. G. A. Jansen