Acrylate Polymer Substrate Patents (Class 8/509)
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Patent number: 12233638Abstract: An illustrative dye sublimation apparatus may include a texture sheet with a pattern to be applied to a substrate. More specifically, the texture sheet is pressed into the substrate during the dye sublimation process in order to apply the pattern from the texture sheet while the substrate is heated and simultaneously being infused with an image from a printed sheet. The pressure applied to the texture sheet can vary, for example based on the temperature. Compared to the conventional systems in which substrates are pre-textured, the embodiments disclosed herein describe a process for simultaneous image-infusion and texture-application, which results in a substrate that is both infused and textured.Type: GrantFiled: October 24, 2022Date of Patent: February 25, 2025Assignee: Sekisui Kydex, LLCInventors: Jeffrey Humenick, Jym Kauffman, Rebecca Gallup
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Patent number: 9323164Abstract: A coating is disclosed. The coating may be used in an apparatus having a radiation source, e.g. a lithographic apparatus. The coating comprises the elements Si, O, F and, optionally, C and H. An article is also disclosed. The article may be any one of the group consisting of a substrate table, an optical element, a shutter member, a sensor, a projection system, and a confinement structure. At least a portion of a surface of the article is coated with a coating. The coating comprises the elements Si, O, F and, optionally, C and H. The coating may comprise the elements Si, O, C and H.Type: GrantFiled: October 14, 2014Date of Patent: April 26, 2016Assignee: ASML NETHERLANDS B.V.Inventor: Nina Vladimirovna Dziomkina
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Patent number: 8870357Abstract: The present invention provides a marking ink for a covered electrical conductor utilized for a wire harness of a motor vehicle. The marking ink is printed on the covered conductor formed with polyolefin such as polyethylene and provides a high adherence (coloring), high wear resistance, high productivity, fast drying, and moderate spreading. The marking ink for the covered electrical conductor contains an acrylate resin with molecular weight of 10,500-93,000.Type: GrantFiled: December 26, 2006Date of Patent: October 28, 2014Assignee: Yazaki CorporationInventors: Takeshi Kamata, Shigeharu Suzuki, Keigo Sugimura, Kiyoshi Yagi
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Patent number: 8206463Abstract: A process for making a colored article of manufacture is disclosed. Accordingly an article of manufacture is first prepared of a material selected from the group consisting of metal, wood, glass, ceramic, masonry and polymeric materials. A polymeric coating (superstrate) is then applied to at least a portion of the surface of the article. At least a portion of the superstrate is brought into contact with a material system that contains (i) water, (ii) a carrier, (iii) a dye and (iv) a diol, under conditions calculated to bring about diffusion of said dye into said superstrate.Type: GrantFiled: May 4, 2006Date of Patent: June 26, 2012Assignee: Bayer MaterialScience LLCInventors: Mark W. Witman, Robert A. Pyles, Rick L. Archey, Joseph D. Ventura
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Patent number: 7678156Abstract: Compositions suitable for treating keratinic fibers, in particular human hair, are disclosed, which compositions comprise: (i) at least one component selected from the group consisting of salt compounds of general formula I, enamine counterparts of salt compounds of general formula I, and mixtures thereof: Where each Me represents a methyl group, R represents a substituent selected from the group consisting of an allyl group, a hydroxy-(C2-6)-alkyl group, a benzyl group, and substituted benzyl groups, and X? represents a physiologically compatible anion; and (ii) at least one aldehyde selected from the group consisting of 4-hydroxy-3-methoxybenzaldehyde, 3,5-dimethoxy-4-hydroxybenzaldehyde, 4-hydroxy-1-naphthaldehyde, 4-hydroxy-2-methoxybenzaldehyde, 3,4-dihydroxy-5-methoxybenzaldehyde, 3,4,5-trihydroxybenzaldehyde, 3,4-dibromo-4-hydroxybenzaldehyde, 4-hydroxy-3-nitrobenzaldehyde, 3-bromo-4-hydroxybenzaldehyde, 4-hydroxy-3-methylbenzaldehyde, 3,5-dimethyl-4-hydroxy-benzaldehyde, 5-bromo-4-hydroxy-3-methoxType: GrantFiled: August 18, 2005Date of Patent: March 16, 2010Assignee: Henkel AG & Co. KGaAInventors: Wibke Gross, Sandra Mausberg, Doris Oberkobusch, Horst Höffkes
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Publication number: 20090064425Abstract: A colored polymeric material having improved light fastness is generally provided. The colored polymeric material generally comprises a polymer, a colorant, and natural nanoparticles. The colorant can be a dye, such as an acid dye. In one embodiment, the dye can be susceptible to degradation when exposed to light in the presence of oxygen, such as many azo dyes. The natural nanoparticles can include many natural clays.Type: ApplicationFiled: April 10, 2006Publication date: March 12, 2009Applicant: UNIVERSITY OF SOUTH CAROLINAInventors: Walter Scrivens, Dongling Fei
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Patent number: 7422610Abstract: In a method of coloring a dye coating-formed lens by heating, the lens is subjected to half dyeing by changing the heating temperature depending on the lens site. This dyeing method involves heating a lens having a dye coating-formed on the surface thereof in a heating furnace to diffuse a dye into the lens. This method is carried out in a heating furnace having a frame section having the shape of a cube or rectangular parallelepiped, a heating section provided within the frame section, and an insertion port for inserting the lens provided on the bottom surface of the frame section. All or a part of the lens is inserted from the insertion port into a furnace inside of the heating furnace from the lower portion of the heating furnace and heated.Type: GrantFiled: January 10, 2006Date of Patent: September 9, 2008Assignee: Hoya CorporationInventors: Takaaki Kubodera, Masahiko Samukawa
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Patent number: 7387646Abstract: The present invention relates to a method of protecting organic material, especially from the pharmaceutical, food and nutrition sectors, from light, which method comprises applying to or incorporating in a carrier material a combination of the dye of formula (1) the dye of formula (2) and a UV absorber and, optionally, further dyes, and positioning the so-treated carrier material between the light source and the organic material to be protectedType: GrantFiled: December 13, 2004Date of Patent: June 17, 2008Assignee: Ciba Specialty Chemicals CorporationInventor: Joachim Jandke
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Patent number: 7179303Abstract: A preparation for coloring keratin fibers containing dyes and/or dye precursors, at least one silicone oil and/or silicone gum and at least one polymer which contains at least one monomer unit corresponding to formula (I): in which n is a number of 1 to 3 and Y is a physiologically compatible anion. Also disclosed is a method of applying this preparation to keratin fibers.Type: GrantFiled: October 22, 2003Date of Patent: February 20, 2007Assignee: Henkel Kommanditgesellschaft Auf Aktien (Henkel KGaA)Inventors: Wolfgang Wolff, Mustafa Akram, Shigeri Tanaka, legal representative, Hiroshi Tanaka, deceased
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Patent number: 7175675Abstract: In the method of the present invention a plastic article (e.g., a molded article of thermoplastic polycarbonate) is immersed at least partially in a dye bath which includes one or more dyes, water, at least one carrier, and at least one diol. The dye bath contains: (i) at least one dye (e.g., a static and/or photochromic dye); (ii) water; (iii) at least one carrier represented by the following general formula I, R—O—(CH2)n—OHI wherein R is a radical selected from linear or branched C1–C18 alkyl, benzyl, benzoyl and phenyl, and n is 2 or 3; and (iv) a diol selected from at least one of linear or branched C2–C20 aliphatic diols, poly(C2–C4 alkylene glycol), cycloaliphatic diols having from 5 to 8 carbon atoms in the cyclic ring, monocyclic aromatic diols, bisphenols and hydrogenated bisphenols. In an embodiment of the present invention, the carrier is ethyleneglycol butyl ether, and the diol is diethylene glycol.Type: GrantFiled: December 11, 2003Date of Patent: February 13, 2007Assignee: Bayer MaterialScience LLCInventors: Robert A. Pyles, Rick L. Archey, David M. Derikart
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Patent number: 7097668Abstract: A temporary hair dyeing composition which comprises: (a) a cationic dye; (b) a water soluble anionic polymer; and (c) water.Type: GrantFiled: September 16, 2002Date of Patent: August 29, 2006Assignee: Combe IncorporatedInventor: Jack Massoni
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Patent number: 7056346Abstract: The present invention relates to a composition comprising, in a cosmetically acceptable support suitable for dyeing the hair, at least one direct dye and at least one crosslinked polymer containing acrylic residue units of the structure in which R1 denotes H, CH3 or C2H5, and C10–C30 alkyl acrylate residue units, wherein the composition is a direct dyeing composition for the hair, and wherein said at least one direct dye is an anthraquinone or azo dye which is acidic or cationic.Type: GrantFiled: September 18, 2000Date of Patent: June 6, 2006Assignee: L'Oreal S.A.Inventor: Mireille Maubru
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Patent number: 6994735Abstract: A process for tinting a molded article is disclosed. The process entails applying by spraying or by flow coating a hot, dye-solution onto at least a portion of the surface of a molded article to obtain a tinted article and washing the tinted article. In addition to the dissolved dye, the dye solution that is substantially free of particulate matter contains an aqueous solution of a carrier and an optional emulsifier. The article is one molded of a thermoplastic molding composition. In an embodiment of the invention, the dye solution is prepared by filtering a hot aqueous solution through a bag filter that contains a dye to obtain a hot, dye-solution. In a further embodiment, activated carbon is used to purify the dye solution to obtain a dye-free aqueous solution.Type: GrantFiled: May 8, 2003Date of Patent: February 7, 2006Assignee: Bayer Materialscience LLCInventors: Robert A. Pyles, David M. Derikart, Rick L. Archey, Michael Nikolakopoulos
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Patent number: 6949127Abstract: A process of dyeing a molded article is disclosed. The process entails immersing at least a portion of the article in a dyeing bath, retaining the portion in the bath for a period of time sufficient to allow an amount of dye to diffuse into the article, and removing said article from the bath. The molded article comprises a polymeric resin such as (co)polyester, (co)polycarbonates, acrylonitrile-butadiene-styrene, polyamide, polyurethane, polyalkyl(meth)-acrylate, allyldiglycol carbonate and styrene copolymers. The dyeing bath contains in addition to dye, water, a plasticizing agent and a leveling agent.Type: GrantFiled: March 9, 2004Date of Patent: September 27, 2005Assignee: Bayer MaterialScience LLCInventors: Robert A. Pyles, Rick L. Archey
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Publication number: 20040139565Abstract: A dye, such as a fluorescent dye, is incorporated into polymer microparticles using a solvent system composed of a first solvent in which the dye and the microparticle polymer are soluble, a second solvent in which the dye and the microparticle polymer are not or only weakly soluble, and a third solvent in which the dye and the microparticle polymer are not or only weakly soluble. The first and second solvents are immiscible with each other, or at most partially miscible. The third solvent is miscible with the first and second solvents. The formulation provides substantially complete partitioning of the dye to the microparticles. The method may be used to obtain dyed polymer microparticle formed of cross-linked or non-cross-linked polymers. Libraries are provided comprising two or more sets of microparticles of different dye loadings.Type: ApplicationFiled: January 21, 2003Publication date: July 22, 2004Applicants: BioArray Solutions, Ltd., Lehigh UniversityInventors: Sukanta Banerjee, Cecilia Georgescu, Eric S. Daniels, Victoria L. Dimonie, Michael Seul
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Patent number: 6758866Abstract: Hair coloring compositions which comprise: (A) non-nitrogenous chelating agents from the group consisting of polyphosphate; phosphonates; hydroxycarboxylates; polyacrylates; zeolite; and mixtures thereof; (B) an oxidative dye primary intermediate; and (C) an oxidative dye coupler; (D) and water are described. The present invention also relates to a method for coloring hair which comprises contacting said hair with a hair coloring composition as described above.Type: GrantFiled: December 21, 2001Date of Patent: July 6, 2004Assignee: Unilever Home & Personal Care USA, Division of Conopco, Inc.Inventors: Jiang Yang, John Brian Bartolone, Gabriela Wis-Surel, Alexander C Chan
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Patent number: 6749646Abstract: A process for tinting of articles molded from a polymeric resin is disclosed. Preferably, the article is molded from polycarbonate and the process entails immersing the molded article in a dye bath that contains water, dye, a carrier and an optional surfactant. The carrier is a compound conforming to R1[—O—(CH2)n]mOR2 (i) wherein R1 and R2 independently denote H or C1-18 alkyl, benzyl, benzoyl or phenyl radical which may be substituted in the aromatic ring by alkyl and or halogen, preferably R1=butyl, R2=H, n is 2 or 3 and m is 2 to 35. The method is especially useful in the manufacture of tinted lenses.Type: GrantFiled: November 7, 2001Date of Patent: June 15, 2004Assignee: Bayer Polymers LLCInventors: Robert A. Pyles, Rick L. Archey
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Patent number: 6733543Abstract: A process of dyeing a molded article is disclosed. The process entails immersing at least a portion of the article in a dyeing bath, retaining the portion in the bath for a period of time sufficient to allow an amount of dye to diffuse into the article, and removing said article from the bath. The molded article comprises a polymeric resin such as (co)polyester, (co)polycarbonates, acrylonitrile-butadiene-styrene, polyamide, polyurethane, polyalkyl(meth)acrylate, allyldiglycol carbonate and styrene copolymers. The dyeing bath contains in addition to dye, water, a plasticizing agent and a leveling agent.Type: GrantFiled: March 26, 2002Date of Patent: May 11, 2004Assignee: Bayer Polymers LLCInventors: Robert A. Pyles, Rick L. Archey
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Publication number: 20040068807Abstract: The invention relates to new methods of dyeing polymers. The methods include dispersing nanomaterials into the polymers to form polymer nanocomposites, and dyeing the polymer nanocomposites with a dye. The invention also relates to dyed polymers thus obtained and articles made from these dyed polymers.Type: ApplicationFiled: September 16, 2003Publication date: April 15, 2004Applicants: University of Massachusetts, a Massachusetts corporation, The Board of Regents of the University of Nebraska, a Nebraska corporationInventors: Qinguo Fan, Yiqi Yang, Samuel C. Ugbolue, Alton R. Wilson
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Publication number: 20040045102Abstract: The present application relates to a process for preparing dyed plastics or polymeric dye particles characterized in that it comprises mixing a high molecular weight organic material with a coloristically effective amount of at least one dye of the formula where R1 is hydrogen, hydroxyl or a radical —NHCO—R6, where R6 is C1-C6alkyl or unsubstituted or C1-C4alkyl- or halogen-substituted phenyl, R2 is hydrogen, hydroxyl or a radical W—R7, where W is —NHCO— or —S— and R7 is C1-C6alkyl or unsubstituted or C1-C4alkyl- or halogen-substituted phenyl, R3 is hydrogen, R4 is hydrogen or hydroxyl, R5 is hydrogen, or R3 and R4 combine to form the radical of the formula, where the rings A and B may independently bear further substituents.Type: ApplicationFiled: June 20, 2003Publication date: March 11, 2004Inventors: Rainer Hildebrand, Peter Sutter
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Patent number: 6624219Abstract: The present invention relates to a set of (co)polymers, dispersion formulations, solid solutions and formulation conditions able to disperse a dye selected from the group of a monoazo dye, quinophthalone dye and an anthraquinone dye in a stable nanoparticular form in an aqueous medium.Type: GrantFiled: August 17, 2000Date of Patent: September 23, 2003Assignees: BASF Aktiengesellschaft, SYMYX Technologies, Inc.Inventors: Robert Heger, Wolfgang Schrof, Michael Seufert, Helmut Auweter, Walter Mächtle, Rüdiger Iden, Dieter Horn, Ralph Nielsen, Eric Carlson, Chang Han-Ting, Sigrid Kuebler, Petro Miroslav
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Publication number: 20030115689Abstract: A process for the continuous dyeing of plastic films, such as polyethylene terephthalate, is characterized by passing the film through a dye bath comprised of dye stuffs dissolved, suspended or dispersed in a liquid carrier comprised at least in part of a polymer, preferably a polyol, having at least one free hydroxyl group and a molecular weight within the range of from about 200 to about 600. The hydrogen bonding provided by the hydroxyl group, together with the high molecular weight and high boiling point of the polyol, mitigate against migration of the dye stuff out of the film, i.e., fading of the film, and impart long lasting color fastness to the film. Rapid diffusion of the dye bath into the film is enhanced by thermal and ultrasonic energization of the bath.Type: ApplicationFiled: December 21, 2001Publication date: June 26, 2003Applicant: N.V. BEKAERT S.A.Inventors: Xiaoming Yang, Raymond B. Turner
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Patent number: 6576591Abstract: A coding scheme to identify the connections an optical fiber is to form in an optical assembly is provided. The coding scheme consists of a series of colors, typically four, provided along the fiber length. The combination of colors identifies the connection the fiber is to form. Colors are transferred to the optical fiber by sublimation of the dye at a relatively low temperature. The sublimed dye then diffuses into the outer coating of the optical fiber.Type: GrantFiled: October 26, 2000Date of Patent: June 10, 2003Assignee: Nortel Networks LimitedInventors: Kenneth Snowdon, James D Watts, Christopher G Tanner, Andrew Waterhouse, Alan Fisher
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Patent number: 6533825Abstract: Dibenzonaphthyrone of formula (I) wherein A1 and A2 independently of each other are unsubstituted or mono- to tetra-substituted o-C6-C18arylene, with the proviso that formula (I) does not represent a dibenzonaphthyrone of the formula The invention further relates to processes for the preparation thereof, to the use thereof for colouring/pigmenting high-molecular-weight organic material and to substance compositions comprising dibenzonaphthyrones.Type: GrantFiled: June 13, 2001Date of Patent: March 18, 2003Assignee: Ciba Specialty Chemicals CorporationInventors: Peter Nesvadba, Joachim Jandke
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Publication number: 20030000028Abstract: The invention provides a colorant for use in tinting contact lenses in which the binding polymer used is capable of forming an interpenetrating polymer network with the lens material. When the colorants of the invention are applied to uncured lens material that is subsequently cured, the binding polymer forms an interpenetrating polymer network with the lens material embedding the colorant within the lens material resulting in a stable, tinted lens.Type: ApplicationFiled: December 20, 2001Publication date: January 2, 2003Inventors: Frank F. Molock, Khaled Chehab, James D. Ford, Ture Kindt-Larsen, Craig W. Walker, Joe M. Wood, Julieann E. Weber, Gary L. Collins
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Publication number: 20020178516Abstract: The invention relates to the use of compounds of the formula 1Type: ApplicationFiled: March 18, 2002Publication date: December 5, 2002Inventors: Franck Rey Flandrin, Gu-Hua Hu, Philippe Bugnon, Zhimin Hao
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Publication number: 20020148054Abstract: A method for forming a dye sublimation image in a substrate with a dye carrier having an image formed thereon of a sublimatic dyestuff is provided. The image of the dye carrier is placed against a first surface of the substrate. The substrate and dye carrier are conveyed along a path with a first part and a second part. A continuous pressure is provided against the first surface of the substrate in the first part and second part of the path and therebetween. The dye carrier is heated to a sublimation temperature in the first part of the path. The dye carrier is then cooled to a depressure temperature in the second part of the path.Type: ApplicationFiled: February 26, 2002Publication date: October 17, 2002Inventor: Jonathan C. Drake
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Publication number: 20020059683Abstract: In textile products (e.g. yarns, woven fabrics, knit fabrics) comprising highly crosslinked polyacrylic fibers (made of acrylic fibers by partially hydrolyzing a nitrile group to generate an amido group and a carboxylic acid group), fibers blended with the highly crosslinked polyacrylic fibers can be dyed in an even hue.Type: ApplicationFiled: September 14, 2001Publication date: May 23, 2002Inventors: Takamasa Sakamoto, Tsutomu Shiotani, Takeshi Ogino
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Publication number: 20010027581Abstract: This invention relates to a process for increasing the stain resistance of an acid dyeable nylon filament or staple fiber, especially in the form of a textile or floor covering article such as a carpet. The invention involves the addition of a stain blocker to the dye bath through which the textile article is passed. The stain blocker contains phenolic groups and is free of sulfonic and carboxylic groups. After the dyeing process, the carpet is subjected to sequential heat treatments.Type: ApplicationFiled: January 9, 2001Publication date: October 11, 2001Inventor: Yanhui Sun
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Publication number: 20010020312Abstract: Colorfastness of cationic dyeable nylon fibers dyed with acid and/or premetalized acid dyes is enhanced and potential water bleed problems can also be overcome by treating the dyed fibers with an acrylic water bleed fixative in conjunction with a traditional cotton water bleed fixative. In a typical procedure, the acrylic fixative is applied first, followed by the nylon fixative or the cotton fixative.Type: ApplicationFiled: February 8, 2001Publication date: September 13, 2001Inventor: Michael E. Bell
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Publication number: 20010020313Abstract: A process for bulk dyeing of plastics comprising the step of adding a dye of the formula (I) 1Type: ApplicationFiled: February 20, 2001Publication date: September 13, 2001Inventors: Josef-Walter Stawitz, Stephan Michaelis
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Publication number: 20010016961Abstract: A dyeing method of dyeing a plastic lens includes: a step of placing the lens in a predetermined position in a vacuum vapor-deposition device; a step of placing base bodies to be used for a dyeing operation in the vapor-deposition device, each of the base bodies being applied with dyeing solutions each containing a dissolved or fine-grained dispersed sublimatable dye to form a dye application area on each base body, and the base bodies being arranged in opposite positions to each other with respect to the lens so that the dye application area faces each surface of the lens without contact therewith; and a step of heating the base bodies by heat sources under vacuum in the vapor-deposition device, thereby sublimating the dye of the dye application areas to vapor-deposit the sublimated dye on the lens.Type: ApplicationFiled: January 29, 2001Publication date: August 30, 2001Applicant: NIDEK CO., LTD.Inventors: Minoru Inuzuka, Masanori Uetani
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Publication number: 20010014988Abstract: A dyeing method of dyeing a plastic lens includes: a step of placing the lens in a predetermined position in a vacuum vapor-deposition device; a step of placing a base body to be used for a dyeing operation in the vapor-deposition device, the base body being applied with dyeing solutions each containing a dissolved or fine-grained dispersed sublimatable dye to form a dye application area on the base body, and the base body being arranged so that the dye application area faces the lens without contact therewith; a step of heating the base body under vacuum in the vapor-deposition device, thereby sublimating the dye of the dye application area to vapor-deposit the sublimated dye on the lens; and a step of heating the lens on which the dye has been vapor-deposited at changing heating temperatures, thereby fixing the dye on the lens.Type: ApplicationFiled: January 29, 2001Publication date: August 23, 2001Applicant: NIDEK CO., LTDInventor: Minoru Inuzuka
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Patent number: 6197226Abstract: A process for tinting a resin and a tinted optical material produced by the process. The process comprising dipping a resin into a liquid containing at least one compound selected from the group consisting of polar inorganic compounds and polar organic compounds and subsequently tinting the resin, wherein the resin is obtained by curing by polymerization of a sulfur-containing compound alone or a composition comprising the sulfur-containing compound, the sulfur-containing compound having in the molecule thereof one or more structures represented by the following formula hydrocarbon group having 1 to 10 carbon atoms, R2, R3 and R4 each represents a hydrogen atom or a hydrocarbon group having 1 to 10 carbon atoms, Y represents S or O and n represents 0 or 1.Type: GrantFiled: December 28, 1998Date of Patent: March 6, 2001Assignee: Mitsubishi Gas Chemical CompanyInventors: Akikazu Amagai, Motoharu Takeuchi, Katsuyuki Mizuno, Atsuki Niimi, Hiroshi Horikoshi
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Patent number: 6162844Abstract: A method of incorporating radiation-absorbing agents (i.e., dyes) into polymeric materials. A preferred method involves crosslinking or polymerizing a polymerizable or crosslinkable material in the presence of a polymeric dye. A preferred product is a tinted contact lens comprising poly(vinyl alcohol). The methods offer advantages in reduced fabrication cycles, reduced extractables, elimination of post-polymerization activation steps, elimination of post-polymerization extraction steps and reduced scrap and costs associated with lens handling.Type: GrantFiled: December 22, 1999Date of Patent: December 19, 2000Assignee: Novartis AGInventors: John Martin Lally, Deborah Jean Mulcahy, Achim Muller, Beat Muller, Bernhard Seiferling, Friedrich Stockinger
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Patent number: 5955523Abstract: Disazo chromphores having at least two different poly(oxyalkylene) substituents are linked together by a covalent bond or by an intervening connecting group to form dimers. The preferred poly(oxyalkylene) substituents are straight chain polymers consisting of ethylene oxide and propylene oxide. The disazo colorants are useful for coloring thermoplastic resins such as polypropylene and polyethylene and show improved extraction, migration, clarity and thermal stability characteristics as compared to standard monoazo colorants.Type: GrantFiled: November 7, 1997Date of Patent: September 21, 1999Assignee: Milliken Research CorporationInventors: Eric B. Stephens, Mark E. Ragsdale
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Patent number: 5938795Abstract: An improved method for imparting a tint or color to a soft, hydrogel contact lens by uniformly dispersing a dye throughout the lens. The dye is a water-soluble halotriazine dye. The dye is reacted with a hydrophilic monomer to prepare a reactive dye containing predominantly monofunctionality. The monomer is then subjected to polymerization in the presence of a homogeneous solution of the reactive dye in the monomer under conditions to yield the hydrophilic polymer from which the lens is formed. The dye becomes bonded to the polymer during polymerization. The finished lens does not require soaking in an aqueous solution of the dye to impart the desired tint or color to the lens. Additionally, the dye uniformly dispersed throughout the lens according to the improved method does not leach out of the lens or migrate within the lens. Furthermore, the lens does not need to be washed with aqueous base to bond the dye to the lens.Type: GrantFiled: March 10, 1995Date of Patent: August 17, 1999Assignee: Johnson & Johnson Vision Products, Inc.Inventors: Frank F. Molock, James D. Ford
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Patent number: 5868801Abstract: The present invention concerns a method for the application of a pattern on a work piece of thermoplastic material, preferably plastic, in which method a material, preferably fabric, carrying a predetermined pattern, is brought into contact against said work piece, that the plastic material is heated to a predetermined temperature, and that said patterned material is allowed to remain in contact with the plastic material for a predetermined time, so that the pattern is completely or partly taken up by the work piece, whereupon said pattern carrying material is removed, a method for the production of an object from the work piece with simultaneous application of the pattern, as well as an object produced according to the method.Type: GrantFiled: January 31, 1997Date of Patent: February 9, 1999Assignee: Viktor Begat ABInventors: Leif Lindh, Kjell Lindh, Urban Holm
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Patent number: 5800573Abstract: Dyestuffs of the formula (I) ##STR1## wherein Z represents SO.sub.2 or CO,A represents optionally substituted alkyl or aryl andp denotes 1 or 2,which are particularly suitable for the bulk dyeing of plastics, in particular thermoplastics, have been found.Type: GrantFiled: April 9, 1997Date of Patent: September 1, 1998Assignee: Bayer AktiengesellschaftInventors: Stephan Michaelis, Peter Roschger, Volker Hederich
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Patent number: 5534038Abstract: Disclosed are processes for tinting hydrogel materials, such as contact lenses, by dissolving a leuco sulfate ester of a vat dye in an compatible monomer solution, adding an oxidizing initiator to the monomer solution, and oxidizing and polymerizing the monomer solution and dye in the same solution. In one aspect, the oxidation and polymerization are conducted simultaneously whereas in another embodiment, the oxidation of the soluble leuco sulfate ester of a vat dye to the insoluble vat dye and polymerization are conducted sequentially in the same reaction medium.Type: GrantFiled: May 19, 1995Date of Patent: July 9, 1996Assignee: Pilkington Barnes Hind, Inc.Inventor: John M. Evans
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Patent number: 5500024Abstract: An ultraviolet radiation absorbing agent for bonding to an ocular lens. The agent has the formulaA--NH--Bwherein A is an ultraviolet absorbing compound and B is a specific reactive group or a moiety containing reactive group.Type: GrantFiled: December 22, 1994Date of Patent: March 19, 1996Assignee: Ciba-Geigy CorporationInventors: William M. Hung, Kai C. Su
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Patent number: 5423100Abstract: Novel azo compounds having the specific structural formula (1) or (3) set out below, water-soluble dyes containing the compounds, and polarizing films containing the water-soluble dyes: ##STR1## wherein R.sub.1 represents a hydrogen or halogen atom or a hydroxyl, C.sub.1-2 alkyl, C.sub.1-2 alkoxy, C.sub.1-2 acylamino, cyano, carboxyl or sulfonic acid group; R.sub.3 and R.sub.8 individually represent a hydrogen atom or a hydroxyl, C.sub.1-2 alkyl or C.sub.1-2 alkoxy group; R.sub.2 and R.sub.4 individually represent a hydrogen atom or a hydroxyl, C.sub.1-2 alkyl, C.sub.1-2 alkoxy or C.sub.1-2 acylamino group; R.sub.5 represents a hydrogen atom or a carboxyl or C.sub.1-2 alkoxy group; R.sub.6 represents a hydrogen atom, a hydroxyl, amino, methylamino, .beta.-hydroxyethylamino or C.sub.1-2 acylamino group, or a phenylamino or benzoylamino group which the phenyl nucleus may be substituted by one or more nitro, amino, hydroxyl, C.sub.1-2 alkyl, carboxyl and/or sulfonic acid groups and/or chlorine atoms; R.sub.Type: GrantFiled: July 23, 1993Date of Patent: June 13, 1995Assignee: Mitsui Toatsu Chemicals, Inc.Inventors: Tsutami Misawa, Akira Ogiso, Rihoko Imai, Hisato Itoh
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Patent number: 5410053Abstract: There are described rhodamine derivatives of the formula ##STR1## where R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are each hydrogen or substituted or unsubstituted C.sub.1 -C.sub.4 -alkyl, or R.sup.2 is paired off with R.sup.5 or R.sup.4 with R.sup.6 to form 1,3-propylene, which can be substituted,R.sup.5, R.sup.6, R.sup.7 and R.sup.8 are each hydrogen or methyl,R.sup.9 is hydrogen, substituted or unsubstituted C.sub.1 -C.sub.4 -alkyl or a radical of the formula (C.sub.2 H.sub.4 O--).sub.n H, where n is 2 or 3, andAn.sup..crclbar. is the equivalent of an anion derived from an addition or condensation polymer that contains acid groups, novel cyclic rhodamine dyes, and the use of the novel rhodamine derivatives and cyclic rhodamine dyes for dyeing polyacrylonitrile fibers, for incorporation into polymers or for preparing inks.Type: GrantFiled: March 16, 1994Date of Patent: April 25, 1995Assignee: BASF AktiengesellschaftInventors: Erwin Hahn, Claudia Kraeh, Udo Mayer, Bernhard Albert, Walter Denzinger
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Patent number: 5387264Abstract: The invention discloses a method for dyeing a hydrophobic fiber, in particular, a polyester fiber in an extremely brilliant yellow or orange with fluorescence, a method for coloring, for example, a polystyrene resin or a polyacrylate resin in a brilliant yellow or orange, and a coloring material therefore.A method for dyeing a hydrophobic fiber and a method for coloring an organic macromolecular substance characterized by using a coumarin compound represented by the general formula: ##STR1## wherein R.sub.1 and R.sub.2 independently represent each a hydrogen atom or an alkyl group having 1 to 4 carbon atoms;and a coloring material containing the coumarin compound are disclosed.Type: GrantFiled: March 31, 1994Date of Patent: February 7, 1995Assignee: Nippon Kayaku Kabushiki KaishaInventors: Yasuo Murakami, Ryuzo Orita, Tadaaki Sugimoto, Masao Ohnishi
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Patent number: 5298033Abstract: An ultraviolet radiation absorbing agent for bonding to an ocular lens. The agent has the formulaA--NH--Bwherein A is an ultraviolet absorbing compound and B is a specific reactive group or a moiety containing reactive group.Type: GrantFiled: January 12, 1993Date of Patent: March 29, 1994Assignee: Ciba-Geigy CorporationInventors: William M. Hung, Kai C. Su
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Patent number: 5292350Abstract: An improved method is disclosed of imparting a tint or color to a soft, hydrogel contact lens by uniformly dispersing a dye throughout the lens. The dye is composed of a water-soluble compound essentially free of ethylenic unsaturation. A homogeneous solution of the dye in a hydrophilic monomer is prepared, the solution is subjected to polymerization conditions to yield a hydrophilic polymer from which the lens is formed, and the dye dispersed within the polymer is bonded to the polymer by contact with aqueous base prior to final hydration.The finished lens does not require soaking in an aqueous solution of the dye to impart the desired tint or color to the lens. Additionally, the dye uniformly dispersed throughout the lens according to the improved method does not leach out of the lens or migrate within the lens.Type: GrantFiled: April 24, 1992Date of Patent: March 8, 1994Assignee: Vistakon, Inc.Inventors: Frank F. Molock, James D. Ford, John C. Heaton, Edmund C. Rastrelli, Gregory A. Hill
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Patent number: 5272010Abstract: Novel colored contact lens and methods for preparation thereof are described. Binding of a color coat to the lenses is accomplished by use of compounds containing the functional groups --CH.sub.2 --O--R.sup.1, wherein R.sup.1 is hydrogen or C.sub.1 to C.sub.16 alkyl, and said --CH.sub.2 --O--R.sup.1 groups are attached to a carbon atom that is part of an aromatic ring, or are attached to a nitrogen or oxygen atom.Type: GrantFiled: October 1, 1991Date of Patent: December 21, 1993Assignee: Wesley-Jessen CorporationInventor: Michael H. Quinn
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Patent number: 5241068Abstract: Compounds of the formulae ##STR1## in which R.sup.1, R.sup.2, R.sup.3, R.sup.4, X.sup.1 and Y.sup.1 have the stated meanings, processes for their preparation and their use.Type: GrantFiled: August 21, 1991Date of Patent: August 31, 1993Assignee: Bayer AktiengesellschaftInventors: Christina Diblitz, Hans Hochstetter
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Patent number: 5240464Abstract: The process for chemically modifying metal-free, organic material for improving one or more properties thereof such as water dispersibility, compatibility with other organics, or increased chemical reactivity, wherein the process includes providing material with from 1-6 sulfonylhalide groups or sulfonate ester groups or mixtures thereof, and contacting the material under sulfonamido forming conditions with one or more reactants containing one or more poly(oxyalkylene) moieties, each of the reactants having from 1 to 4 functional amine groups, and each of the poly(oxyalkylene) moieties being comprised of from about 4 to about 200 epoxide reactant residues at least about 50 mole percent of which residues contain 2-4 carbons.Type: GrantFiled: June 2, 1992Date of Patent: August 31, 1993Assignee: Milliken Research CorporationInventors: Edward W. Kluger, Max A. Weaver, Jeffery R. Harris, David J. Moody
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Patent number: 5187207Abstract: A hydrophilic contact lens is disclsoed incorporating melanin that protects the eye from harmful radiation and superoxide.Type: GrantFiled: December 19, 1989Date of Patent: February 16, 1993Assignee: Photoprotective Technologies, Inc.Inventor: James M. Gallas