Oxygen Containing Dnrm Patents (Class 522/83)
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Patent number: 5514730Abstract: The present invention provides a radiation curable vinyl-silicone pressure-sensitive adhesive composition which combines the advantages of silicone and acrylate pressure-sensitive adhesives and which does not experience gross phase separation problems. The composition comprises at least about 20 weight percent of a certain telechelic silicone polymer, about 0.5 to about 80 weight percent of monofunctional free-radically polymerizable vinyl monomer copolymerizable with the silicone polymer, and a sufficient amount of a silicate MQ tackifying resin to impart a degree of adhesive tack to the cured composition at the use temperature, wherein the weight percentages of the silicone polymer and the monomer are based upon the total weight of the silicone polymer and monomer.Type: GrantFiled: July 25, 1994Date of Patent: May 7, 1996Assignee: Minnesota Mining and Manufacturing CompanyInventors: Mieczyslaw H. Mazurek, Steven S. Kantner, David J. Kinning, Yvan A. Bogaert
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Patent number: 5512608Abstract: A multi-part composition is provided which is suitable for use as an adhesive, a potting compound, a coating or a sealant. It consists of a polymerizable acrylate formulation and an activating formulation, the latter usually comprising an amine-aldehyde condensation product diluted with a liquid vinyl ether; liquid epoxides may also be included as diluents in the activating formulation.Type: GrantFiled: January 27, 1995Date of Patent: April 30, 1996Assignee: Dymax CorporationInventors: Andrew G. Bachmann, Stephen E. Cantor
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Patent number: 5496682Abstract: Dense sintered parts of ceramic and/or metallic materials are formed using stereo photolithography. An initial flowable mixture of sinterable inorganic particles, photocurable monomer, photoinitiator and dispersant is flowed over a substrate and cured in a selective pattern. Subsequent layers of the mixture are flowed over the substrate and cured to build a three dimensional body. The body is then fired to produce a dense sintered part. Parts having in excess of 95% of theoretical density can be produced.Type: GrantFiled: October 15, 1993Date of Patent: March 5, 1996Assignee: W. R. Grace & Co.-Conn.Inventors: Tariq Quadir, Srinivas K. Mirle, John S. Hallock
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Patent number: 5480717Abstract: The present invention provides processes by which a polymeric hydrogel can be securely adhered to a substrate to form a hydrogel laminate with greatly improved delamination resistance. The laminate is formed by casting onto a polymeric adhesive-coated substrate an aqueous solution of hydrophilic polymer, then exposing this composite to ionizing radiation which cross-links the hydrophilic polymer to form a hydrogel and also induces copolymerization of the hydrophilic polymer and the adhesive polymer.Type: GrantFiled: August 3, 1994Date of Patent: January 2, 1996Assignee: Johnson & Johnson Consumer Products, Inc.Inventor: Nikhil K. Kundel
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Patent number: 5470910Abstract: Composite materials that contain nanoscaled particles are produced in thata) a compound, which is soluble in the solvent and belongs to a metal of the groups 6 to 15 of the periodic system or lanthanides,is reacted in an organic solvent withb) a precipitating reagent in order to form antimonides, arsenides, chalcogenides, halogenides or phosphides of the metal of the metal compound (a) in the present ofc) a bifunctional compound, which exhibits at least one electron pair-donor group and at least one group, which can be converted through polymerization or polycondensation into an organic or inorganic network;the resulting stabilized sol of nanoscaled particles is mixed withd) a compound, which can be polymerized or cured thermally or photochemically into a polymer, ande) a polymerization initiator;a hydrolysis and polycondensation of the optionally present groups that can be converted into an inorganic network is conducted; and the material is cured thermally of photochemically.Type: GrantFiled: June 28, 1994Date of Patent: November 28, 1995Assignee: Institut Fuer Neue Materialien Gemeinnuetzige GmbHInventors: Lubomir Spanhel, Ertugrul Arpac, Rudiger Nab, Helmut Schmidt
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Patent number: 5461087Abstract: A UV curable adhesive composition contains a C4 to C14 alkyl alcohol-acrylic acid ester monomer and a monofunctional oligoester acrylate. The composition is cured with UV rays to produce an adhesive the glass transition temperature of which is to be lower than -20.degree. C. Preferably, the composition also contains glass powders and/or polyolefin powders. A double-face adhesive tape includes two porous base sheets in an adhesive layer produced on curing a UV curable adhesive composition.Type: GrantFiled: July 29, 1993Date of Patent: October 24, 1995Assignee: Sony CorporationInventors: Satoshi Takahashi, Ikuo Mitushima
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Patent number: 5449702Abstract: Disclosed is a coating composition comprising(A) 5 to 60 parts by weight, on a solid basis, of colloidal silica,(B) 5 to 70 parts by weight of a hydrolyzate and/or hydrolyzed and partially condensed product of a compound of the general formula ##STR1## (C) 10 to 80 parts by weight of a polyfunctional monomer containing a monomer of the general formula ##STR2## and (D) 0.01 to 5 parts by weight of a photopolymerization initiator containing a compound of the general formula ##STR3## provided that the combined amount of components (A), (B), (C) and (D) is 100 parts by weight.This coating composition can be cured in air by exposure to ultraviolet light, and the resulting cured film is excellent in various properties (such as abrasion resistance) and adhesion to the substrate.Type: GrantFiled: November 27, 1992Date of Patent: September 12, 1995Assignee: Mitsubishi Rayon Co., Ltd.Inventors: Suehiro Tayama, Misao Tamura, Tsukasa Mizobuchi
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Patent number: 5444104Abstract: A polycarbonate dimethacrylate which is the condensation product of 2 parts of hydroxyalkylmethacrylate of the formula. ##STR1## in which A is C.sub.1 -C.sub.6 alkylene, and 1 part of a bis(chloroformate) of the formula ##STR2## in which R is C.sub.2 -C.sub.5 alkylene having at least two carbon atoms in its principal chain and n is an integer from 1 to 4, is usable, admixed with a secondary monomer suitable for dental applications, such as BIS-GMA; UDMA or the like, as an adhesive system for dental restorative materials. Particularly useful is the novel condensation product of 2-hydroxyethylmethacrylate and triethylene glycol bis(chloroformate).Dental adhesives containing these components are suitable for application to enamel, pretreated dentin, porcelain and metallic surfaces. The dentin surfaces are pretreated by application of an alcoholic solution of an alkali metal salt of benzene sulfinic acid.Type: GrantFiled: October 12, 1993Date of Patent: August 22, 1995Assignee: Jeneric/Pentron, Inc.Inventor: Samuel Waknine
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Patent number: 5437896Abstract: Method of preparing a composite material comprising a silica network and chains of a polyhydroxy compound which are interwoven therewith and a liquid crystal display device having a top coat of such a composite material.A description is given of a method of preparing a composite material comprising a silica network and, interwoven therewith, chains of, for example, polyhydroxyalkyl acrylate, by first photopolymerizing a tetraalkenyl orthosilicate with UV-light and subsequently converting it into the composite material by subjecting it to a sol-gel treatment. The material obtained is optically transparent. In addition, the material exhibits very little shrinkage so that it can be deposited on a substrate in relatively thick layers. The composite material is very suitable for a top coat 5 on a color-filter layer 3 in a liquid crystal display device because, inter alia, it adheres well to the ITO layer 7.Type: GrantFiled: July 6, 1994Date of Patent: August 1, 1995Assignee: U.S. Philips CorporationInventors: Johan G. Kloosterboer, Fredericus J. Touwslager
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Patent number: 5436279Abstract: A coating material crosslinkable by radiation comprising a) an olefinic unsaturated ester of an epoxy novolac resin, b) a binder formed by reaction of an epoxy compound having more than one epoxide group per molecule with at least one carboxylic acid in a molar ratio of epoxy groups per carboxyl group of 1:0.5 to 0.9 and subsequent reaction of the resulting reaction product with at least one unsaturated isocyanate ester formed by reaction of a compound with at least two isocyanate groups with a member of the group consisting of hydroxyl containing acrylic acid, methacrylic acid and cyanacrylic acid esters, c) at least one latent hardener, d) at least one photoinitiator e) 80-120% by weight of fillers and (f) additives, adjuvants and solvents and protective films formed with them.Type: GrantFiled: February 1, 1994Date of Patent: July 25, 1995Assignees: Rutgerswerke Aktingesellschaft, Lackwere Peters GmbH & Co. KGInventors: Ulrich Grundke, Klaus-Peter Liebetanz, Achim Hansen, Jurgen Zehrfeld, Rainer Scharre, Werner Peters
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Patent number: 5429846Abstract: The present invention provides a photo-setting conductive coating composition which is used as an antistatic material constituting articles wherein static electrification must be avoided, such as storage vessels for semi-conductor wafers, electronic/electric parts, floor/wall coverings for a production factory of semi-conductors, etc.The photo-setting conductive coating composition comprising 100 parts by weight of an antimony oxide-containing tin oxide powder (a) having a particle size of 0.01 to 0.4 .mu.m, 10 to 100 parts by weight of a (meth)acrylate compound (b) having at least two (meth)acryloyl groups in a molecule, 10 to 100 parts by weight of an acetal resin (c) having a residual hydroxyl group of 20 to 80 molar %, 0.1 to 10 parts by weight of a photopolymerization initiator (d) and 100 to 1000 parts by weight of an organic solvent (e).Type: GrantFiled: October 25, 1994Date of Patent: July 4, 1995Assignee: Sekisui Chemical Co., Ltd.Inventors: Toshiya Sugimoto, Minoru Suezaki, Kouji Maruyama
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Patent number: 5420171Abstract: A UV curable organic solvent soluble, aqueous nonalkaline soluble and peelable temporary solder mask composition to be applied to a surface to be protected, having a reactive diluent monomer capable of polymerization upon exposure to ultraviolet light and a photoinitiator serving as a free radical source to initiate polymerization.Type: GrantFiled: December 31, 1991Date of Patent: May 30, 1995Assignee: Tech Spray, Inc.Inventor: Greg R. Unruh
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Patent number: 5414025Abstract: A method for the crosslinking of polymeric electrolytes is presented. The method achieves crosslinking by means of ultraviolet radiation. The resulting crosslinked polymers are stable and useful as solid state battery electrolytes.Type: GrantFiled: September 30, 1992Date of Patent: May 9, 1995Assignee: The Penn State Research FoundationInventors: Harry R. Allcock, Constance J. Nelson, William D. Coggio
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Patent number: 5409965Abstract: An active energy ray-curing abrasion resistant coating composition is provided by incorporating following components: (a) a carboxylate-containing polyfunctional acrylate obtained by reacting a tetracarboxylic dianhydride and a hydroxyl group-containing polyfunctional acrylate having hydroxyl group(s) and at least three acryloyl groups and then neutralizing the reaction product; (b) a polyfunctional acrylate having at least three acryloyl groups; (c) an organic solvent; and (d) a photopolymerization initiator. The composition may comprise in addition to the components (e) a silica sol in an organic solvent as a dispersion medium. The composition may further comprise in addition to the components (f) an acrylic resin. Such composition is an active energy ray-curing abrasion-resistant coating composition which forms a film having excellent adhesion to a plastic sustrate, transparency, abrasion resistance and antistatic properties.Type: GrantFiled: July 26, 1994Date of Patent: April 25, 1995Assignee: Mitsubishi Petrochemical Co., Ltd.Inventors: Noritaka Hosokawa, Kazuhide Hayama
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Patent number: 5395269Abstract: An electrical connector of the type having a housing with terminals extending from apertures thereof, is sealed at the aperture entrances around the extending terminal portions. The sealant material is polymerized of a major proportion of at least one vinyl ester resin, a minor proportion of at least one polymerizable acrylic diluent monomer and a polymerization activation system comprising from about 0.025% to about 17% by weight of the resin, by being exposed to actinic radiation selected to activate the system. The polymerized material excludes solder and solvents from the aperture entrances.Type: GrantFiled: August 26, 1991Date of Patent: March 7, 1995Assignee: The Whitaker CorporationInventors: Francis F. Koblitz, Thomas M. O'Shea, Lynn K. Snyder
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Patent number: 5393802Abstract: A weight for adjusting balance of a rotating body obtained by adding and mixing one or two or more sorts of solid spherical powders selected from silicated glass, boro-silicated glass and phosphate glass to and with ultraviolet curing resin. The weight has improved specific gravity which is capable of sufficiently hardening even the inner part thereof without remaining an unhardened part in a short time only by being exposed to ultraviolet rays and suitable for a rotating body such as a rotor in a motor of a brushless outer rotor type or a brush motor and a polygon mirror for use in a laser printer because the powder particles thereof can be intimately bonded with one another through the adhesive resin.Type: GrantFiled: June 25, 1993Date of Patent: February 28, 1995Assignee: Three Bond Co., Ltd.Inventor: Fumihiro Horikawa
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Patent number: 5384339Abstract: A balancing compound comprising an epoxy resin, a photoinitiator in an effective amount to cure the resin at ambient temperatures upon the application of ultraviolet light (10 nm to 400 nm) of less than 40 watts per square centimeter in less than about 30 seconds, and a filler in an effective amount to give the compound a specific gravity above 1.1.Type: GrantFiled: March 9, 1993Date of Patent: January 24, 1995Inventor: Donn R. Starkey
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Patent number: 5378734Abstract: A UV and moisture-curable organopolysiloxane composition comprising (i) an organopolysiloxane terminated with a radical of formula (1): ##STR1## wherein R.sup.1 is a hydrogen atom or monovalent hydrocarbon radical, each of R.sup.2 and R.sup.3 is a divalent hydrocarbon radical which may contain a NH bond or ether bond, each of R.sup.4 and R.sup.5 is a monovalent hydrocarbon radical which may contain an ether bond, and a is equal to 0 or 1, (ii) a photo-polymerization initiator, and (iii) a curing catalyst. The composition readily cures either upon exposure to UV radiation or upon contact with moisture and from the surface to the deep interior within a short time, yielding cured products having satisfactory physical properties.Type: GrantFiled: August 27, 1993Date of Patent: January 3, 1995Assignee: Shin-Etsu Chemical Company, Ltd.Inventor: Yoshio Inoue
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Patent number: 5376691Abstract: The invention describes a material for making temporary crowns and bridges that comprises two pastes and can be mixed in a static mixer/application in one cycle without the incorporation of bubbles, and can be easily pressed out. The polymers produced from this are aesthetically pleasing and remarkably break-resistant. Their polymerization-related shrinkage proves to be extremely low. Their radiopaqueness meets clinical requirements.Type: GrantFiled: March 1, 1993Date of Patent: December 27, 1994Assignee: Ernst Muhlbaner KGInventors: Ulrich May, Jurgen Engelbrecht, Ernst Muhlbauer, Edgar Lein
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Patent number: 5374483Abstract: The present invention relates to a silicone coating composition which, when cured on a solid substrate either by ultraviolet or electron beam radiation, provides a transparent abrasion resistant coating firmly adhered thereon. The silicon coating is prepared by reacting at least one multifunctional acrylate monomer with an amino-organofunctional silane, mixing the modified silane with at least one acrylic monomer and thereafter adding colloidal silica.Type: GrantFiled: February 22, 1993Date of Patent: December 20, 1994Assignee: Dow Corning CorporationInventor: Antony P. Wright
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Patent number: 5356947Abstract: The present invention provides controllably curable photoiniferter containing adhesive compositions which are suitable for the mounting of microelectronic devices such as flip chips onto transparent wiring boards, a method of making the adhesive compositions, and a method of using the adhesive compositions in order to bond microelectronic devices to transparent wiring boards by intermittent exposure of the adhesive composition to a radiant energy source. The adhesive compositions can be cured in a stepwise fashion by intermittent controlled exposure to a source of radiation thus providing exactly the amount of cure and hardening desired.Type: GrantFiled: October 29, 1992Date of Patent: October 18, 1994Assignee: Minnesota Mining and Manufacturing CompanyInventors: Mahfuza B. Ali, Jean M. Pujol
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Patent number: 5348986Abstract: Photocurable silicone compositions based on capping of a silicone with a silyl diacrylate capper of the formula ##STR1## wherein: R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6, R.sub.7, R.sub.8, R.sub.9, and R .sub.10 are independently selected from hydrogen, halo, and organo radicals; and n is an integer having a value of from 1 to 4.In specific embodiments, the compositions include a polymodal-cure resin composition comprising an acryloxy-functional capped silicone, and a photocurable silicone gel composition and precursor thereof.Type: GrantFiled: January 25, 1993Date of Patent: September 20, 1994Assignee: Loctite CorporationInventors: Hsien-Kun Chu, Robert P. Cross, David I. Crossan, Edward K. Welch, II
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Patent number: 5342658Abstract: The present invention relates to an ultraviolet light curable coating composition having a shorter curing time and an excellent abrasion resistance, which comprises:(A) an aqueous-alcoholic base resin dispersion containing, based on the weight of the total solids present in the base resin dispersion,(a) 5 to 75% by weight of a colloidal silica and(b) 25 to 95% by weight of a partial condensate of a silanol of formula:R SI(OH).sub.3whereinR is a C.sub.1-6 alkyl, C.sub.6-20 aryl or hydroxy group; and(B) an ultraviolet light curable catalyst of formulaAr.sub.3 S.sup.+ MX.sub.n.sup.-whereinAr.sub.3 is a triphenyl, tri(4-methoxy)phenyl, tri(3,5-dimethyl-4-hydroxyphenyl), diphenyl-2,5-dimethylphenyl or tri(4-methyl) phenyl group; andMX.sub.n.sup.- is a metallic halide anion.Type: GrantFiled: December 28, 1992Date of Patent: August 30, 1994Assignee: Lucky LimitedInventors: Young J. Hong, Jin B. Kim, Jong K. Yeo
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Patent number: 5326621Abstract: An energy polymerizable composition comprises at least one ethylenically-unsaturated monomer, one of polyurethane precursors, and at least one epoxy monomer, and a curing agent comprising an organometallic compound, and an onium salt.Type: GrantFiled: August 19, 1992Date of Patent: July 5, 1994Assignee: Minnesota Mining and Manufacturing CompanyInventors: Michael C. Palazzotto, Katherine A. Brown-Wensley, Robert J. DeVoe
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Patent number: 5321053Abstract: A dental composition comprising a vinyl monomer containing at least one acidic group in the molecule thereof and an initiator capable of photopolymerizing said monomer by visible light, characterized in that said initiator consisting essentially of:(a) a photosensitizer selected from an .alpha.-diketone, a quinone and a derivative thereof, and,(b) an accelerator selected from a compound containing at least one mercapto group in the molecule thereof is provided by the present invention.Type: GrantFiled: February 6, 1990Date of Patent: June 14, 1994Assignee: Kuraray Co., Ltd.Inventors: Kenichi Hino, Junichi Yamauchi, Koji Nishida
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Patent number: 5318999Abstract: The present invention provides a novel dental composition and a method of making shaped dental articles therefrom via photoiniferter polymerization. The dental composition comprises acrylic photoiniferter block polymer, a monomer charge comprising free radically polymerizable acrylic monomer, and a filler and optionally includes pigments, sensitizers, medicaments, stabilizers, accelerators, etc. The dental composition is alternately exposed to a source of radiant energy and shaped in a desired manner in order to form a partially cured dental article. The partially cured dental article is then cured by a final exposure to the radiant energy source, providing a final cured article. The resultant reinforced acrylic copolymer system provides a shaped dental article which can be a denture base, a denture liner or a restorative.Type: GrantFiled: October 8, 1991Date of Patent: June 7, 1994Assignee: Minnesota Mining and Manufacturing CompanyInventors: Sumita B. Mitra, Mahfuza B. Ali
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Patent number: 5318850Abstract: UV curable hardcoat compositions are provided which impart improved abrasion resistance to thermoplastic substrates when applied and cured thereon. Enhancement in abrasion and weathering properties have been achieved by the use of certain UV curable branched or carbocyclic monoacrylates, such as isobornyl acrylate.Type: GrantFiled: July 29, 1992Date of Patent: June 7, 1994Assignee: General Electric CompanyInventors: James E. Pickett, Gautam A. Patel
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Patent number: 5306739Abstract: A highly, filled composition is described containing a polymeric material, at least one filler, and at least one surface active agent. The filler(s) and surface active agent(s) are selected based upon the relationship between their pH's allowing for enhanced filler loading of the compositions. The compositions of the present invention can be used to coat electrical and electronic components or as inasfar covering substrates.Type: GrantFiled: July 22, 1992Date of Patent: April 26, 1994Assignee: MLT/Micro-Lite Technology CorporationInventor: Michael F. Lucey
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Patent number: 5304586Abstract: One component, visible light-cured dental restorative compositions having fluoride release properties for the purpose of reducing the chances of secondary caries are provided. The compositions include inorganic particulate fluoride leachable glass.Type: GrantFiled: August 2, 1991Date of Patent: April 19, 1994Assignee: Dentsply Research & Development Corp.Inventors: Paul D. Hammesfahr, Paul S. Danielson, Robert C. Campbell
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Patent number: 5296295Abstract: Radiation-curable coating compositions which form transparent, abrasion-resistant tintable coatings upon curing by exposure to high intensity irradiation, such as ultraviolet light or electron beam irradiation. The coating composition comprises a combination of effective amounts of (a) colloidal silica, (b) the hydrolysis product of a silane compound having a polymerizable functional group such as acryloxy-functional silanes or glycidoxy-functional silanes or mixtures of both, (c) polyfunctional, polymerizable, non-acrylate-functional ethers, (d) at least one radiation sensitive initiator and, preferably, (e) a monofunctional monomer. When the surface of a substrate coated with the cured coating composition is immersed in a colored dye bath for a sufficient period of time, the coating absorbs or transmits to the substrate a desired amount of dye.Type: GrantFiled: May 3, 1993Date of Patent: March 22, 1994Assignee: Pilkington Aerospace Inc.Inventors: William C. Perkins, William Lewis
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Patent number: 5276068Abstract: A polycarbonate dimethacrylate which is the condensation product of 2 parts of hydroxyalkylmethacrylate of the formula ##STR1## in which A is C.sub.1 -C.sub.6 alkylene, and 1 part of a bis(chloroformate) of the formula ##STR2## in which R is C.sub.2 -C.sub.5 alkylene having at least two carbon atoms in its principal chain and n is an integer from 1 to 4, is usable, admixed with a secondary monomer suitable for dental applications, such as BIS-GMA; PUDMA or the like, as an adhesive system for dental restorative materials. Particularly useful is the novel condensation product of 2-hydroxyethylmethacrylate and triethylene glycol bis(chloroformate).Type: GrantFiled: January 28, 1992Date of Patent: January 4, 1994Assignee: Jeneric/Pentron, Inc.Inventor: Samuel Waknine
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Patent number: 5262450Abstract: A radiation curable composition is provided herein which comprises suitably about 50-90 parts, preferably about 60-80 parts, by weight, of a multifunctional acrylate monomer, suitably with 3-6 acrylate groups, preferably pentaerythritol triacrylate or trimethylolpropane triacrylate, about 10-50 parts by weight, preferably about 20-40 parts, by weight, of a divinyl ether monomer having both a hydrophobic backbone and an abrasion-resistant moiety, which is preferably the divinylether of cyclohexane dimethanol, and a radiation curing initiator, suitably a cationic initiator, and preferably, in combination with a free radical initiator.Type: GrantFiled: December 28, 1990Date of Patent: November 16, 1993Assignee: ISP Investments Inc.Inventors: Fulvio J. Vara, James A. Dougherty, Geoffrey J. Wilkins
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Patent number: 5260348Abstract: An improved silicone composition is disclosed, which comprises:a) at least one silanol chain-stopped polydiorganosiloxane polymer;b) an acyloxy, alkoxy, or aryloxy-functional crosslinking agent; andc) a catalytic amount of an onium salt photocatalyst.These materials are characterized by enhanced cure properties, such as short tack free time; and they can also include various other components, such as fillers, plasticizers, condensation cure catalysts, and adhesion promoters.Type: GrantFiled: January 31, 1992Date of Patent: November 9, 1993Assignee: General Electric CompanyInventors: Brian D. Shepherd, David C. Gross
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Patent number: 5254602Abstract: A photocurable compound prepared as a starting material by incorporation therein of a composition comprising a fluorescein compound photoreducing dye, tribenzylamine, and at least one specific peroxide permits production of a shaped article which, on exposure to visible light, exhibits high curability and acquires hardness virtually indiscriminately on the obverse and reverse sides of the article. A mixture comprising both or either of an unsaturated polyester resin and an epoxy acrylate resin which are photocurable compounds, glass fibers, and a specific peroxide, is convenient for the production of specific cured shaped articles particularly by the filament winding technique or the drawing technique.Type: GrantFiled: February 21, 1992Date of Patent: October 19, 1993Assignee: Nippon Oil & Fats Co., Ltd.Inventors: Yoshihiro Tomura, Shigeki Banno
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Patent number: 5242719Abstract: A method of making a UV curable hardcoat composition uses a strip-free process and produces hardcoats having good scribed tape-pull adhesion, high resistance to scratching and a low delta taber haze after abrading for 500 cycles with a 500 gram weight. UV curable hardcoat compositions are also provided which contain high solids contents and high mole percentages of photoinitiator. Compositions containing methoxypropanol as a water miscible alcohol and methylbenzoylformate as a photoinitiator exhibit high taber hardness and can be made by processes which obviate the need for a time and energy consuming solvent-strip step. The processes are not only shorter, but safer than processes which include a solvent-strip step.Type: GrantFiled: April 6, 1992Date of Patent: September 7, 1993Assignee: General Electric CompanyInventors: George F. Medford, Gregory R. Gillette
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Patent number: 5240973Abstract: Surface characteristics of a molded article formed by a composition comprising at least two kinds of engineering plastics and a functionalized polyolefin resin or a composition comprising the said composition and an inorganic filler or a rubbery substance incorporated therein can be improved without deteriorating such characteristics as rigidity, impact resistance, heat resistance, dimensional stability and moldability, by radiating an ultraviolet light not longer than 300 nm in wavelength to the molded article, the said functionalized polyolefin resin containing at least one member selected from the group consisting of carboxylic acid group-, carboxylic ester group- or acid anhydride group-containing monomers, epoxy group-containing monomers, hydroxyl group-containing monomers, amino group-containing monomers, alkenyl cyclic iminoether derivatives and polyfunctional monomers.Type: GrantFiled: November 22, 1991Date of Patent: August 31, 1993Assignees: Japan as represented by Director General of Agency of Industrial Science and Technology, Nippon Petrochemicals Company, LimitedInventors: Kohichiroh Katoh, Motomi Nogiwa, Yoshiharu Iwasaki
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Patent number: 5225315Abstract: A water-soluble coating or other deposit is produced from a formulation that is comprised of a curable liquid substance and a dispersed particulate effervescing agent. The formulation is particularly useful as a solder resist in the manufacture of PCBs, and the preferred composition contains n-vinyl-2-pyrrolidone, N,N-dimethylacrylamide, and polyvinylpyrrolidone.Type: GrantFiled: September 19, 1991Date of Patent: July 6, 1993Assignee: Dymax CorporationInventors: Gary V. Grosclaude, Andrew G. Bachmann
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Patent number: 5221560Abstract: Radiator-Curable coating compositions which form transparent, abrasion-resistant, tintable coatings upon curing by exposure to high intensity irradiation, such as ultraviolet light or electron beam irradiation. The coating composition comprises a combination of effective amounts of (a) colloidal silica, (b) the hydrolysis product of a silane compound having a polymerizable functional group such as acryloxy-functional silanes or glycidoxy-functional silanes or mixtures of both, (c) polyfunctional, polymerizable, non-acrylate-functional ethers, (d) at least one radiation sensitive initiator and, preferably, (e) a monofunctional monomer. When the surface of a substrate coated with the cured coating composition is immersed in a colored dye bath for a sufficient period of time, the coating absorbs or transmits to the substrate a desired amount of dye.Type: GrantFiled: December 17, 1991Date of Patent: June 22, 1993Assignee: Swedlow, Inc.Inventors: William C. Perkins, William Lewis
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Patent number: 5212212Abstract: A zinc-stable ceramic ink composition which contains a metal oxide, a glass frit, a UV-curable vehicle, zinc powder, and a calcium-containing organic complex. The calcium-containing organic complex prevents premature polymerization of the UV-curable vehicle so that the zinc-containing ink composition may be stored for extended periods of time prior to use.Type: GrantFiled: November 14, 1992Date of Patent: May 18, 1993Assignee: Lord CorporationInventor: James B. Fonda
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Patent number: 5188864Abstract: An adhesion promoter for use with ultraviolet radiation curable siloxane composition is made by combining an alkoxysilicon compound of the formula(RO).sub.3 Si--X--Si(OR).sub.3and a compound capable of catalyzing the reaction between two alkoxy groups or an alkoxy group and a hydroxyl group. Ultraviolet radiation curable siloxane compositions with the improved adhesion are obtained by mixing the adhesion promoter with a mixture which has at least one ultraviolet radiation activatable siloxane polymer and a photoinitiator. These compositions can be used as optical fiber coatings, conformal coatings, and other coating application where adhesion to a substrate is important.Type: GrantFiled: April 2, 1991Date of Patent: February 23, 1993Assignee: Dow Corning CorporationInventors: Chi-long Lee, Michael A. Lutz
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Patent number: 5182786Abstract: This invention provides:(i) an acitve energy beam-curable composition for coating the surface of optical fibers therewith, the composition comprising about 100 parts by weight of an active energy beam-curable substance, about 0.5 to about 100 parts by weight of a particulate substance having a mean particle size of about 0.2 to about 200 .mu.m and optionally a photopolymerization initiator;(ii) a coated optical fiber prepared by applying the composition of item (i) to the surface of an optical fiber and curing the coating;(iii) a bundle-type optical fiber cable prepared using the coated optical fiber of item (ii);(iv) an optical fiber unit of the tape type prepared by applying the composition of item (i) to optical fibers and curing the coating; and(v) an optical fiber prepared using the optical fiber unit of item (iv).Type: GrantFiled: December 13, 1989Date of Patent: January 26, 1993Assignee: Kansai Paint Co., Ltd.Inventors: Yoshimasa Kinaga, Masao Ogawa, Yoshihiro Kiyomura
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Patent number: 5180757Abstract: Actinic radiation curable composition suitable for use in coating electronic components and as a printing ink comprising as the essential components:(a) a monomer selected from the group consisting of monofunctional vinyl monomers and multifunctional vinyl monomers; or(b) a prepolymer selected from the group consisting of monofunctional vinyl polymers and multifunctional vinyl polymers;(c) a photoinitiator;(d) at least one filler; and(e) at least one surface active agent having a molecular weight greater than or equal to about 227;wherein one of the surface active agent or the filler has a pH greater than or equal to 7 and the other of the surface active agent or the filler has a pH less than or equal to 7 such that dispersion of the filler in the composition is enhanced and relative high loading of filler in the composition is obtainable;(f) or at least two surface active agents having a molecular weight greater than or equal to about 227 wherein one of the surface active agents has a pH greater than or equaType: GrantFiled: May 16, 1991Date of Patent: January 19, 1993Inventor: Michael Lucey
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Patent number: 5158989Abstract: A photocurable ink composition for forming patterns resistive to electroless plating is disclosed which includes (a) an epoxy resin, (b) an aliphatic polyol polyglycidyl ether as a reactive, viscosity controlling agent, (c) a photopolymerization catalyst, and (d) hydrophobic silica particles as a thixotropic agent.Type: GrantFiled: October 9, 1990Date of Patent: October 27, 1992Assignee: Somar CorporationInventors: Osamu Ogitani, Toru Shirose
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Patent number: 5158990Abstract: A drop coating compound in particular, for unhoused electrical and electronic circuits and components. The compound includes highly filled ultraviolet-curable epoxy resin compounds having improved properties with respect to their use and in comparison to previously used, predominantly two-component, thermally curable resins.Type: GrantFiled: January 30, 1992Date of Patent: October 27, 1992Assignee: Siemens AktiengesellschaftInventors: Heiner Bayer, Barbara Lehner, Hans-Peter Fritsch, Kurt Wohak
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Patent number: 5134175Abstract: Actinic radiation curable composition suitable for use in coating electronic components and as a printing ink comprising as the essential components:(a) a prepolymer selected from the group consisting of monofunctional vinyl resins and multifunctional vinyl resins;(b) a monomer selected from the group consisting of monofunctional vinyl monomers and multifunctional vinyl monomers;(c) a photoinitiator;(d) a filler; and(e) at least one surface active agent having a molecular weight greater than about 227;wherein one of the surface active agent or the filler has a pH greater than or equal to 7 and the other of the surface active agent or the filler has a pH less than or equal to 7 such that dispersion of the filler in the composition is enhanced and relatively high loading of filler in the composition is obtainable.Type: GrantFiled: November 29, 1990Date of Patent: July 28, 1992Inventor: Michael Lucey
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Patent number: 5128386Abstract: UV-crosslinkable materials based on (meth)acrylate copolymers contain copolymerized monomers of the general formula I ##STR1## where R is a certain alkyl radical, an aryl radical or a radical R.sup.1 and R.sup.1 is a radical ##STR2## where R.sup.2 to R.sup.6 are each H, alkyl, a non-ortho OH group, OCH.sub.3, OC.sub.2 H.sub.3, SH, SCH.sub.3, Cl, F, CN, COOH, COO(C.sub.1 -C.sub.3 -alkyl), CF.sub.3, N(CH.sub.3).sub.2, N(C.sub.2 H.sub.5).sub.2, N(CH.sub.3)C.sub.6 H.sub.5, .sup.+ N(CH.sub.3).sub.3 X.sup.- or .sup.+N(CH.sub.3).sub.X X.sup.-, where X.sup.- is an acid anion, and one or more of the radicals R.sup.2 to R.sup.Type: GrantFiled: December 15, 1989Date of Patent: July 7, 1992Assignee: BASF AktiengesellschaftInventors: Gerd Rehmer, Andreas Boettchher, Gerhard Auchter
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Patent number: 5118724Abstract: The present invention proposes a silane and an organopolysiloxane containing a cyclopentenyl radical, characterized in that the silane or the organopolysiloxane has a radical Y of the formula: ##STR1## directly linked to the silicon atom. The silanes according to the invention can be used as coupling and crosslinking agents, in particular in the compositions of acrylic paints.The diorganopolysiloxanes according to the invention can be used as base polymer of a silicone composition which is crosslinkable to an elastomer, in particular by exposure to atmospheric oxygen.Type: GrantFiled: November 21, 1990Date of Patent: June 2, 1992Assignee: Rhone-Poulenc ChimieInventors: Jean-Marc Frances, Frederic Leising
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Patent number: 5118748Abstract: A phenylene oxide polymer composition comprising (1) a phenylene oxide polymer; (2) a styrene/ethylene butylene/styrene block copolymer; and (3) a hydrated metal oxide; wherein the ratio by weight of the phenylene oxide polymer to the styrene/ethylene butylene/styrene block copolymer ranges from 90:10 to 10:90 and the content of the hydrated metal oxide ranges from 50 to 300 parts by weight per 100 parts by weight of the total amount of the phenylene oxide polymer and styrene/ethylene butylene/styrene block copolymer. This composition shows a high fire retardancy and little fuming and is excellent in tensile strength, elongation, low-temperature brittleness and organic solvent resistance.Type: GrantFiled: March 7, 1990Date of Patent: June 2, 1992Assignee: Mitsubishi Cable Industries Ltd.Inventors: Toshinori Fujita, Takahiko Hirata
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Patent number: 5086087Abstract: The invention relates to a composition containing UV curable unsaturated monomers and/or oligomers, a photoinitiator and colloidal silica with an organosilane compound, a polyalkoxysilane being used as organosilane compound and the composition containing an acid catalyst.Type: GrantFiled: March 24, 1989Date of Patent: February 4, 1992Assignee: Stamicarbon B.V.Inventor: Tosko A. Misev
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Patent number: 5081164Abstract: A restorative dental composite material consists essentially of an organosilicon monomer selected from a class of siloxane materials which are cross-linkable utilizing visible light sensitive photoinitiators, an amount of filler material, a coupling agent and an amount of activator. An amount of ethylenically unsaturated monomer, an amount of thermally pre-polymerized particle material and/or a pigment material can be added to the composite if indicated. The materials exhibit greatly improved properties including a high degree of conversion, minimum water sorption and good color stability.Type: GrantFiled: December 7, 1990Date of Patent: January 14, 1992Assignee: Lai Laboratories, Inc.Inventor: Juey H. Lai