Styrene Polymer Patents (Class 8/514)
  • Patent number: 11781005
    Abstract: A thermoplastic resin composition includes: 100 parts by weight of a base resin including (A) about 35 wt % to about 55 wt % of an acrylic graft copolymer; (B) about 35 wt % to about 55 wt % of an aromatic vinyl-vinyl cyanide copolymer; and (C) about 2 wt % to about 15 wt % of an alkyl(meth)acrylate-based resin; (D) about 0.4 parts by weight to about 2 parts by weight of a first sterically hindered amine represented by Chemical Formula 1 described in the detailed description; and (E) about 0.4 parts by weight to about 2 parts by weight of a second sterically hindered amine represented by Chemical Formula 2 described in the detailed description.
    Type: Grant
    Filed: July 30, 2020
    Date of Patent: October 10, 2023
    Assignee: Lotte Chemical Corporation
    Inventors: Jungwook Kim, Jieun Park, Seongwoo Kang, Keehae Kwon
  • Patent number: 11193023
    Abstract: The present invention relates to novel methine dyes, methods for the preparation thereof and use thereof for dyeing plastics, especially polyamides, so as to obtain yellow to orange colourings with improved light fastness and improved thermal stability. Such dyes include a dye of the formula (I) in which R1 is hydrogen, halogen, COOH or COOR11, R2 is hydrogen, halogen, COOH, COOR12 or CN, R3 is alkyl or phenyl, R4 and R5 are each independently alkyl, R6, R7, R8, R9 and R19 are each independently hydrogen, halogen, alkyl, alkoxy or COOR13, and R11, R12 and R13 are each independently alkyl.
    Type: Grant
    Filed: October 9, 2018
    Date of Patent: December 7, 2021
    Assignee: LANXESS Deutschland GmbH
    Inventors: Sabine Schmauser, Sr., Frank Linke, Hans-Ulrich Borst
  • Patent number: 8361169
    Abstract: Various methods for forming dyed microspheres are provided. One method includes activating a chemical structure coupled to a dye using heat or light to form a reaction intermediate in the presence of a microsphere. The reaction intermediate covalently attaches to a polymer of the microsphere thereby coupling the dye to the polymer and forming the dyed microsphere. Additional methods are provided for forming a dyed microsphere coupled to a molecule. These methods include dyeing the microspheres as described above in addition to synthesizing the molecule on an outer surface of the dyed microspheres. A population of dyed microspheres is also provided. Each of the dyed microspheres of the population includes a dye attached to a polymer of each of the dyed microspheres by a chemical structure. A coefficient of variation in dye characteristics of the population of dyed microspheres attributable to the dye is less than about 10%.
    Type: Grant
    Filed: September 27, 2011
    Date of Patent: January 29, 2013
    Assignee: Luminex Corporation
    Inventors: Kurt D. Hoffacker, Ananda G. Lugade, Ewald Terpetschnig
  • Patent number: 8206463
    Abstract: 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: Grant
    Filed: May 4, 2006
    Date of Patent: June 26, 2012
    Assignee: Bayer MaterialScience LLC
    Inventors: Mark W. Witman, Robert A. Pyles, Rick L. Archey, Joseph D. Ventura
  • Patent number: 8038734
    Abstract: Various methods for forming dyed microspheres are provided. One method includes activating a chemical structure coupled to a dye using heat or light to form a reaction intermediate in the presence of a microsphere. The reaction intermediate covalently attaches to a polymer of the microsphere thereby coupling the dye to the polymer and forming the dyed microsphere. Additional methods are provided for forming a dyed microsphere coupled to a molecule. These methods include dyeing the microspheres as described above in addition to synthesizing the molecule on an outer surface of the dyed microspheres. A population of dyed microspheres is also provided. Each of the dyed microspheres of the population includes a dye attached to a polymer of each of the dyed microspheres by a chemical structure. A coefficient of variation in dye characteristics of the population of dyed microspheres attributable to the dye is less than about 10%.
    Type: Grant
    Filed: October 11, 2005
    Date of Patent: October 18, 2011
    Assignee: Luminex Corporation
    Inventors: Kurt D. Hoffacker, Ananda G. Lugade, Ewald Terpetschnig
  • Publication number: 20090064425
    Abstract: 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: Application
    Filed: April 10, 2006
    Publication date: March 12, 2009
    Applicant: UNIVERSITY OF SOUTH CAROLINA
    Inventors: Walter Scrivens, Dongling Fei
  • Publication number: 20080282483
    Abstract: Solute-loaded polymer microparticles are obtained by immersing microparticles in a bath comprising a selected solute dissolved in a ternary solvent system. A first solvent of the ternary system is a strong solvent for both the solute and the polymer from which the microparticle was formed. A second solvent is a weak solvent or non-solvent for the solute and the polymer (tuning solvent). A third solvent is a weak solvent or non-solvent for the solute and polymer, but serves as a co-solvent with respect to the first and second solvents in that it is miscible with both the first and second solvents. The amount of solute incorporated into the microparticles is controlled by adjusting the ratio of solute with respect to the microparticle polymer, and by adjusting the composition of the ternary solvent system, principally the amount of tuning solvent.
    Type: Application
    Filed: March 14, 2007
    Publication date: November 20, 2008
    Inventors: Sukanta Banerjee, Cecilia Georgescu, Michael Seul
  • Patent number: 7422610
    Abstract: 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: Grant
    Filed: January 10, 2006
    Date of Patent: September 9, 2008
    Assignee: Hoya Corporation
    Inventors: Takaaki Kubodera, Masahiko Samukawa
  • Publication number: 20080201871
    Abstract: Quaternary ammonium salts were incorporated into anthraquinone dyes via a stable linkage. The structure of the antimicrobial colorants were characterized by Fourier Transform Infrared (FTIR), Nuclear Magnetic Resonance (NMR) and UV-vis spectrometry. The dyes demonstrated excellent antimicrobial ability against both gram-negative and gram-positive bacteria in aqueous solution, as indicated by very low minimum inhibitory concentration (MIC). The colorants showed excellent stability in water under light, continuous heating as well as acidic and alkaline conditions.
    Type: Application
    Filed: October 10, 2007
    Publication date: August 28, 2008
    Applicant: The Regents of the University of California
    Inventors: Gang Sun, Junshu Liu
  • Patent number: 7306632
    Abstract: The invention is directed to novel hair dye compositions, novel leave-in conditioners, and novel leave-in conditioners with a hair coloring effect. Hair dye compositions, leave-in conditioners, and leave-in conditioners with hair coloring effect may include a styrene/vinylpyrrolidone copolymer emulsion.
    Type: Grant
    Filed: March 3, 2005
    Date of Patent: December 11, 2007
    Assignee: HairMarker LLC
    Inventors: George Pollack, Robert Sobel
  • Patent number: 7175675
    Abstract: 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: Grant
    Filed: December 11, 2003
    Date of Patent: February 13, 2007
    Assignee: Bayer MaterialScience LLC
    Inventors: Robert A. Pyles, Rick L. Archey, David M. Derikart
  • Patent number: 7087095
    Abstract: A hair dye composition that is particularly applicable by localized capillary action, and comprises one or more FD&C and D&C dyes, water, alcohol, Polectron 430, and a polymeric ruboff protector component for preventing ruboff of the color of the dye.
    Type: Grant
    Filed: August 6, 2002
    Date of Patent: August 8, 2006
    Assignee: HairMarker LLC
    Inventor: George Pollack
  • Patent number: 6994735
    Abstract: 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: Grant
    Filed: May 8, 2003
    Date of Patent: February 7, 2006
    Assignee: Bayer Materialscience LLC
    Inventors: Robert A. Pyles, David M. Derikart, Rick L. Archey, Michael Nikolakopoulos
  • Patent number: 6949127
    Abstract: 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: Grant
    Filed: March 9, 2004
    Date of Patent: September 27, 2005
    Assignee: Bayer MaterialScience LLC
    Inventors: Robert A. Pyles, Rick L. Archey
  • Publication number: 20040168268
    Abstract: 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: Application
    Filed: March 9, 2004
    Publication date: September 2, 2004
    Inventors: Robert A. Pyles, Rick L. Archey
  • Publication number: 20040168267
    Abstract: 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.
    Type: Application
    Filed: March 2, 2004
    Publication date: September 2, 2004
    Inventors: Robert A. Pyles, Rick L. Archey
  • Patent number: 6749646
    Abstract: 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: Grant
    Filed: November 7, 2001
    Date of Patent: June 15, 2004
    Assignee: Bayer Polymers LLC
    Inventors: Robert A. Pyles, Rick L. Archey
  • Patent number: 6733543
    Abstract: 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: Grant
    Filed: March 26, 2002
    Date of Patent: May 11, 2004
    Assignee: Bayer Polymers LLC
    Inventors: Robert A. Pyles, Rick L. Archey
  • Patent number: 6533825
    Abstract: 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: Grant
    Filed: June 13, 2001
    Date of Patent: March 18, 2003
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Peter Nesvadba, Joachim Jandke
  • Patent number: 6245118
    Abstract: Resinous compositions, especially synthetic resins and most especially arylate polymers, contain 2,3-dicyano-1,4-diaminoanthraquinone as a blue dye. Said compositions are characterized by improved weatherability in comparison with compositions containing other blue dyes.
    Type: Grant
    Filed: September 10, 1999
    Date of Patent: June 12, 2001
    Assignee: General Electric Company
    Inventor: Alexander Isaakovich Shakhnovich
  • Patent number: 5955523
    Abstract: 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: Grant
    Filed: November 7, 1997
    Date of Patent: September 21, 1999
    Assignee: Milliken Research Corporation
    Inventors: Eric B. Stephens, Mark E. Ragsdale
  • Patent number: 5800573
    Abstract: 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: Grant
    Filed: April 9, 1997
    Date of Patent: September 1, 1998
    Assignee: Bayer Aktiengesellschaft
    Inventors: Stephan Michaelis, Peter Roschger, Volker Hederich
  • Patent number: 5578245
    Abstract: The invention provides submicron particles. The invention further provides submicron particles which are dispersed in an aqueous colloid. The invention further provides a method of forming the stable dispersion which includes providing an ion exchange resin, loading the ion exchange resin with an ion, treating the loaded resin to form nanoscale particles. The invention further provides fluidizing the resin and particles to form an aqueous stable colloid.
    Type: Grant
    Filed: September 9, 1994
    Date of Patent: November 26, 1996
    Assignee: Xerox Corporation
    Inventor: Ronald F. Ziolo
  • Patent number: 5493011
    Abstract: Water-insoluble azo colorants, their preparation and use The invention relates to monoazo and disazo compounds of the formula (I) ##STR1## in which D is the radical of a carbocyclic or heterocyclic diazo or bisdiazo component, R.sup.1 and R.sup.2, independently of one another, are each a substituted or unsubstituted aryl or heteroaryl radical, X.sup.1 and X.sup.2, independently of one another, are each ring-forming ether oxygen or a substituted or unsubstituted imide grouping and n has the value 0 or 1, in which rings A and B, independently of one another, can each be additionally substituted and/or carry substituted or unsubstituted fused rings.These new compounds of the formula (I) are obtained by coupling diazotized amines or diamines of the type D--NH.sub.2 or H.sub.2 N--D--NH.sub.2 with (benzoxazol-2-yl)- or (benzimidazol-2-yl)-arylacetamides.Depending on the presence and length of alkyl chains, the compounds of the formula (I) are suitable for use as pigments, disperse dyes or oil-soluble dyes.
    Type: Grant
    Filed: November 6, 1992
    Date of Patent: February 20, 1996
    Assignee: Hoechst AG
    Inventors: Rudiger Jung, Reinhold Deubel
  • Patent number: 5476923
    Abstract: Compounds of the formula ##STR1## wherein each R.sub.1 is independently hydrogen, halogen, C.sub.1-4 alkyl, C.sub.1-4 alkoxy or nitro,R.sub.2 is hydrogen or halo,R.sub.3 is halo, andMe is a divalent metal,useful for pigmenting polymeric materials such as polyethylene, polyvinyl chloride, polystyrene, natural rubber and synthetic rubber, for the mass pigmentation of materials such as cellulose acetate and for pigmenting paper, lacquers, paints, printing inks and textile coatings.
    Type: Grant
    Filed: March 31, 1994
    Date of Patent: December 19, 1995
    Assignee: Sandoz Ltd.
    Inventors: Jurgen Goldmann, Bansi L. Kaul
  • Patent number: 5387264
    Abstract: 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: Grant
    Filed: March 31, 1994
    Date of Patent: February 7, 1995
    Assignee: Nippon Kayaku Kabushiki Kaisha
    Inventors: Yasuo Murakami, Ryuzo Orita, Tadaaki Sugimoto, Masao Ohnishi
  • Patent number: 5362417
    Abstract: The invention provides submicron particles. The invention further provides submicron particles which are dispersed in an aqueous colloid. The invention further provides a method of forming the stable dispersion which includes providing an ion exchange resin, loading the ion exchange resin with an ion, treating the loaded resin to form nanoscale particles. The invention further provides fluidizing the resin and particles to form an aqueous stable colloid.
    Type: Grant
    Filed: July 9, 1992
    Date of Patent: November 8, 1994
    Assignee: Xerox Corporation
    Inventor: Ronald E. Ziolo
  • Patent number: 5240464
    Abstract: 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: Grant
    Filed: June 2, 1992
    Date of Patent: August 31, 1993
    Assignee: Milliken Research Corporation
    Inventors: Edward W. Kluger, Max A. Weaver, Jeffery R. Harris, David J. Moody
  • Patent number: 5131916
    Abstract: Aqueous emulsions based on certain graft polymers are outstandingly suitable for the production of colored inks for so-called marker pens. They are distinguished, for example, by a high storage stability.
    Type: Grant
    Filed: February 22, 1991
    Date of Patent: July 21, 1992
    Assignee: Bayer Aktiengesellschaft
    Inventors: Herbert Eichenauer, Artur Haus
  • Patent number: 4979963
    Abstract: This invention provides a process for coloring expandable beads of polystyrene resins which comprises suspending expandable beads of a polystyrene resin and a dye in water in a closed vessel and heating this aqueous suspension at a temperature above the softening point of the expandable beads, wherein the closed vessel is filled up almost completely with the aqueous suspension and heating is conducted without further addition of any blowing agent, whereby the expandable beads are impregnated uniformly with the dye. According to this process, uniformly colored expandable beads of polystyrene resins are obtained at a high efficiency of dye impregnation without using any impregnation aid or the like, the expandable beads being capable of forming beautiful molded foams of uniform color.
    Type: Grant
    Filed: March 24, 1989
    Date of Patent: December 25, 1990
    Assignee: Kanegafuchi Kagaku Kogyo Kabushiki Kaisha
    Inventors: Junichi Nakada, Toshiaki Yamamoto, Minoru Tada, Kyoichi Nakamura
  • Patent number: 4978362
    Abstract: A thermoplastic resin composition is provided which contains a thermoplastic resin and a colorant in the form of a polyalkyleneoxy-trifluoromethyl aniline colorant provided in said thermoplastic resin in a minor amount sufficient to provide coloration to said resin, said colorant having the formula: ##STR1## wherein R.sub.1 is selected from H, a lower alkyl group containing from 1 to about 10 carbon atoms, CH.sub.2 Cl, CH.sub.2 Br, CH.sub.2 OH, phenyl or ##STR2## wherein R.sub.4 is H or a lower alkyl group containing from 1 to about 9 carbon atoms; R.sub.2 is H, CF.sub.3, a lower alkyl group containing from 1 to about 9 carbon atoms, Cl or Br; R.sub.3 is an aromatic or heteroaromatic containing group, and n is an integer from 2 to about 75.
    Type: Grant
    Filed: October 11, 1988
    Date of Patent: December 18, 1990
    Assignee: Milliken Research Corporation
    Inventors: Edward W. Kluger, John W. Rekers
  • Patent number: 4880667
    Abstract: Described is a method for imparting a photochromic response to a synthetic plastic article, e.g., an optical lens such as a sunglass lens prepared from an allyl diglycol carbonate monomer. The method described comprises depositing a thin uniform substantially dry film of a photochromic-bearing polymeric resin onto at least one planar surface of the synthetic plastic material, heating the plastic article and resin film substantially uniformly at temperatures near to but below the melting temperature of the photochromic substance for a time sufficient to transfer a photochromic amount of the photochromic material into the subsurface region of the plastic article, and thereafter removing the photochromic-lean resin film from the planar surface(s) of the plastic article.
    Type: Grant
    Filed: October 15, 1987
    Date of Patent: November 14, 1989
    Assignee: PPG Industries, Inc.
    Inventor: Cletus N. Welch
  • Patent number: 4880432
    Abstract: Disclosed is a process for preparing particles colored with a dye which comprises: (a) forming, by a free radical dispersion polymerization process in a nonaqueous solution, polymeric particles having attached thereto stabilizing copolymers with at least one functional group capable of undergoing a chemical reaction with a dye, the particles having an average diameter of from about 0.1 to about 20 microns; (b) adding a dye to the polymeric particles having attached thereto stabilizing copolymers; and (c) effecting a chemical reaction between the dye and the stabilizing copolymers that results in the dye becoming covalently bound to the polymeric particles. Also disclosed is a liquid electrophotographic developer composition comprising a liquid medium, a charge control agent, and colored polymeric toner particles prepared as stated above and having an average diameter of from about 0.5 to about 5 microns.
    Type: Grant
    Filed: January 11, 1988
    Date of Patent: November 14, 1989
    Assignee: Xerox Corporation
    Inventors: Luke S. Egan, Mitchell A. Winnik, Francoise M. Winnik
  • Patent number: 4842783
    Abstract: A fiber optic chemical sensor and the method of making it are provided, such being useful in medical, biological and industrial applications. The sensor includes an optical fiber waveguide having a photocrosslinked polymeric gel at a portion thereof, which gel is crosslinked in place and undergoes substantial volume expansion. A dye is absorbed into the gel, the dye being responsive to different degrees depending on the presence and concentration of any one of particular parameters of a fluid being monitored, such parameters being pH, oxygen concentration, carbon dioxide concentration and the like.
    Type: Grant
    Filed: September 3, 1987
    Date of Patent: June 27, 1989
    Assignee: Cordis Corporation
    Inventor: Mark E. Blaylock
  • Patent number: 4812141
    Abstract: A colored thermoplastic resin composition is provided which comprises a thermoplastic resin and a colorant in the form of an alkyleneoxy-substituted chromophore group provided in said thermoplastic resin in a minor amount sufficient to provide coloration to said thermoplastic resin. A process for preparing colored thermoplastic resins is also provided.
    Type: Grant
    Filed: March 17, 1988
    Date of Patent: March 14, 1989
    Assignee: Milliken Research Corporation
    Inventors: Alan S. Baumgartner, Patrick D. Moore, Richard A. VanDahm
  • Patent number: 4753658
    Abstract: Disclosed is a coloring material including a rubber having a sulfonic acid group or a salt thereof, which is dyed with a basic dye. The coloring material is prepared by adding a solution of an alkali in an alcohol to a solution of a chlorosulfonated polyolefin in an organic solvent and then adding a basic dye to the obtained reaction liquid, or adding a basic dye to a solution of a sulfonated product of a rubber in an organic solvent, and optionally removing the solvent from the obtained solution.
    Type: Grant
    Filed: July 14, 1987
    Date of Patent: June 28, 1988
    Assignee: Toyo Soda Manufacturing Co., Ltd.
    Inventors: Shuichi Okuzono, Tatsushi Nakagawa, Takashi Shintani
  • Patent number: 4737581
    Abstract: Azo compounds of the formula I ##STR1## wherein X is --H, --CH.sub.3, --CF.sub.3, --NO.sub.2, --COOR.sub.1, --NHCOR.sub.2 or --COHN.sub.2, and R.sub.1 and R.sub.2 are as defined in claim 1, are suitable for pigmenting high-molecular organic material.
    Type: Grant
    Filed: April 18, 1985
    Date of Patent: April 12, 1988
    Assignee: Ciba-Geigy Corporation
    Inventor: Stefan Hari
  • Patent number: 4732570
    Abstract: A colored thermoplastic resin composition is provided which comprises a thermoplastic resin and a colorant in the form of an alkyleneoxy-substituted chromophore group provided in said thermoplastic resin in a minor amount sufficient to provide coloration to said thermoplastic resin. A process for preparing colored thermoplastic resins is also provided.
    Type: Grant
    Filed: June 23, 1986
    Date of Patent: March 22, 1988
    Assignee: Milliken Research Corporation
    Inventors: Alan S. Baumgartner, Patrick D. Moore, Richard A. VanDahm
  • Patent number: 4666455
    Abstract: Compounds of the formula ##STR1## in which R.sub.1 and R.sub.2 are unsubstituted or substituted phenyl or naphthyl, and R.sub.3 and R.sub.4 are alkyl, alkoxycarbonyl, phenyl, benzoyl or benszl, are suitable for dyeing high molecular weight organic material.
    Type: Grant
    Filed: January 29, 1986
    Date of Patent: May 19, 1987
    Assignee: Ciba-Geigy Corporation
    Inventors: Max Jost, Abul Iqbal, Alain C. Rochat
  • Patent number: 4640690
    Abstract: A colored thermoplastic resin composition is provided which comprises a thermoplastic resin and a colorant in the form of an alkyleneoxy-substituted chromophore group provided in said thermoplastic resin in a minor amount sufficient to provide coloration to said thermoplastic resin. A process for preparing colored thermoplastic resins is also provided.
    Type: Grant
    Filed: September 13, 1985
    Date of Patent: February 3, 1987
    Assignee: Milliken Research Corporation
    Inventors: Alan S. Baumgartner, Patrick D. Moore, Richard A. VanDahm
  • Patent number: 4540775
    Abstract: The compound of the formula, ##STR1## a pigment existing in a yellow (.alpha.) modification and an orange (.beta.) modification, the latter being obtained by treatment of the .alpha. form with boiling organic solvents, is useful for the mass pigmenting of synthetic plastics and resins, free from or containing solvents, such as viscose, cellulose acetate, polyethylene, polystyrene, polyvinyl chloride and synthetic leathers and rubbers, of surface coatings such as paints and lacquers and of inks and for pigment printing, textile coating and pigmenting paper in the mass.
    Type: Grant
    Filed: May 11, 1981
    Date of Patent: September 10, 1985
    Assignee: Sandoz Ltd.
    Inventor: Bansi L. Kaul
  • Patent number: 4516978
    Abstract: A key button molded of a synthetic resin and having on the top surface thereof a character or symbol printed with a coloring agent comprising a dye and a solvent which is capable of dissolving the dye and the synthetic resin, wherein the character or symbol is durably formed on the top surface by the action of the solvent on the surface and body to cause the dye to permeate the surface and the body.
    Type: Grant
    Filed: September 19, 1983
    Date of Patent: May 14, 1985
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Hideo Goto, Takeo Hosoe, Toshinori Oda, Sosuke Ohtsuka
  • Patent number: 4447244
    Abstract: Process for mass-dyeing of thermoplastics, characterized in that the dyestuffs used are of the formula ##STR1## in which X designates a radical ##STR2## R designates hydrogen or alkyl, R.sub.1 and R.sub.2 designate alkyl,R.sub.3 designates hydrogen, cyano, aroyl, alkoxycarbonyl, alkylcarbonyl or carbamoyl,R.sub.4 designates aryl,R.sub.5 designates alkyl, alkylcarbonyl, alkoxycarbonyl or aryl,R.sub.6 designates alkyl, aryl, aralkyl or aralkenyl, andY designates O or NR.sub.7, with R.sub.7 having the meaning hydrogen, alkyl, aralkyl or aryl, it being possible for the radicals which have been mentioned for R.sub.7 and R.sub.1 -R.sub.
    Type: Grant
    Filed: February 4, 1983
    Date of Patent: May 8, 1984
    Assignee: Bayer Aktiengesellschaft
    Inventor: Bernhard Wehling
  • Patent number: 4430090
    Abstract: Dyestuffs of the formula ##STR1## are used for coloring organic solvents, mineral oil products, waxes, plastics and surface coatings, wherein R is alkyl having 1 to 7 carbon atoms, R.sup.1 is alkyl having 1 to 8 carbon atoms or alkenyl having 3 or 4 carbon atoms, and R.sup.2 is hydrogen, alkyl having 1 to 8 carbon atoms or alkenyl having 3 or 4 carbon atoms.
    Type: Grant
    Filed: August 19, 1982
    Date of Patent: February 7, 1984
    Assignee: Cassella Aktiengesellschaft
    Inventors: Ulrich Buhler, Reinhard Hahnle, Joachim Ribka, Helmut Richter
  • Patent number: 4421601
    Abstract: A dyestuff of the formula ##STR1## wherein X.sub.1 denotes amino, cyanamino, acetylamino, guanidino, ureido or hydroxyl;Y.sub.1 and Z.sub.1 denote hydroxyl or amino, with the proviso that at most 2 of the 3 radicals X.sub.1, Y.sub.1 and Z.sub.1 denote hydroxyl;R.sub.1 represents hydrogen, nitro, chlorine, bromine, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, nitrile, C.sub.1 -C.sub.4 -alkylsulphonyl, trifluoromethyl, phenylsulphonyl, benzylsulphonyl, phenoxy, carbo-C.sub.1 -C.sub.4 -alkoxy, carbophenoxy, carbonamido, C.sub.1 -C.sub.4 -alkylcarbonylamino, benzoylamino, sulphonamido, or carbonamido or sulfonamide mono-substituted or disubstituted by C.sub.1 -C.sub.4 -alkyl, phenyl, or benzyl; andR.sub.2 and R.sub.3 represent hydrogen; chlorine C.sub.1 -C.sub.4 -alkyl, carbo-C.sub.1 -C.sub.4 -alkoxy, carbonamido; carbonamido mono-substituted or disubstituted by C.sub.1 -C.sub.4 -alkyl, phenyl, or benzyl, or C.sub.1 -C.sub.4 -alkoxyand a process for coloring substrates using such dyestuff.
    Type: Grant
    Filed: January 3, 1978
    Date of Patent: December 20, 1983
    Assignee: Bayer Aktiengesellschaft
    Inventors: Gunter Stephan, Karl H. Schundehutte
  • Patent number: 4388078
    Abstract: The present invention is concerned with modifying the crystal form of the anthraquinone of the formula ##STR1## so as to render it more suitable for disperse dyeing and to improve its performance in thermosol dyeing. The modification is effected by heating the dyestuff at elevated temperatures, preferably between 90.degree. and 185.degree. C. until the Debye-Scherrer strong intensity spacings appear at 6.5A.degree., 18.1A.degree. and 20.6A.degree.. It is also concerned with disperse and thermosol dyeing processes utilizing this crystal modification and with aqueous dispersions of this crystal modification.
    Type: Grant
    Filed: March 24, 1982
    Date of Patent: June 14, 1983
    Assignee: Mobay Chemical Corporation
    Inventors: Thomas J. Thomas, Robert G. Hoquet
  • Patent number: 4332587
    Abstract: A colorant preparation containing(A) a colorant which is sparingly soluble or insoluble in water,(B) a plasticizer based on an ester and(C) a reaction product of a fatty acid ester of a polyhydric alcohol and ethylene oxide, a process for the production of this preparation and its use for pigmenting plastics.
    Type: Grant
    Filed: January 28, 1981
    Date of Patent: June 1, 1982
    Assignee: Bayer Aktiengesellschaft
    Inventors: Michael Kressner, Joachim Kolbe, Fritz Bremer, Georg Pape, Karlheinz Wolf, Ferdinand Kummeler
  • Patent number: 4323671
    Abstract: Anthraquinone derivatives which, in one of their tautomeric structures, correspond to the formula ##STR1## in which A denotes an anthraquinone radical which is free from sulphonic acid groups, is optionally further substituted and preferably consists of at most 5 fused rings,m denotes a number from 1 to 4, preferably 1 or 2,R denotes a substituent andn denotes 0, 1, 2, 3 or 4,processes for their preparation, their use for pigmenting organic macromolecular substances, and the material pigmented in this manner.
    Type: Grant
    Filed: April 14, 1980
    Date of Patent: April 6, 1982
    Assignee: Bayer Aktiengesellschaft
    Inventors: Rutger Neeff, Meinhard Rolf, Walter Muller
  • Patent number: 4323670
    Abstract: Anthraquinone-azomethine compounds of the formula ##STR1## or of the tautomeric formula ##STR2## in which A denotes an anthraquinone radical which is free from sulphonic acid groups and is optionally further substituted and which preferably consists of at most 5 fused rings,R.sub.1 denotes hydrogen, optionally substituted aryl, preferably ##STR3## hetero-aryl, cycloalkyl or C.sub.1 -C.sub.12 -alkyl, it being possible for the alkyl chain to be interrupted by oxygen or sulphur and/or to be substituted by hydroxyl groups or N(R.sub.3).sub.2 groups, --N(R.sub.3).sub.2 or ##STR4## R.sub.2 denotes a substituent, R.sub.3 denotes hydrogen, C.sub.1 -C.sub.4 -alkyl, cycloalkyl oroptionally substituted aryl,m denotes 1, 2, 3 or 4 andn denotes 0, 1, 2, 3, 4 or 5, processes for their preparation and processes for pigmenting organic macromolecular substances using the new anthraquinone-azomethine compounds.
    Type: Grant
    Filed: July 21, 1980
    Date of Patent: April 6, 1982
    Assignee: Bayer Aktiengesellschaft
    Inventors: Rutger Neeff, Meinhard Rolf, Walter Muller
  • Patent number: 4319025
    Abstract: Anthraquinone-azomethine compounds of the formula ##STR1## or of the tautomeric formula ##STR2## or of the tautomeric formula ##STR3## in which A denotes an anthraquinone radical which is free from sulphonic acid groups and optionally further substituted and which preferably consists of at most 5 fused rings,R.sub.1 denotes hydrogen, C.sub.1 -C.sub.4 -alkyl, hydroxy-C.sub.1 -C.sub.4 -alkyl, optionally substituted phenyl, carboxyl, carboxylic acid, C.sub.1 -C.sub.4 -alkyl ester or hydroxyl,R.sub.2 denotes hydrogen, halogen, nitro, cyano, optionally substituted carbamoyl or optionally substituted sulphamoyl, sulphonic acid C.sub.1 -C.sub.4 -alkyl ester, sulphonic acid aryl ester, C.sub.1 -C.sub.4 - alkylcarbonyl, C.sub.1 -C.sub.4 -alkoxycarbonyl, optionally substituted benzoyl, alkyl or optionally substituted phenyl sulphone, or a hetero-aromatic radical, for example a radical of the formula ##STR4## or of the formula ##STR5## or of the formula ##STR6## R.sub.
    Type: Grant
    Filed: July 21, 1980
    Date of Patent: March 9, 1982
    Assignee: Bayer Aktiengesellschaft
    Inventors: Rutger Neeff, Meinhard Rolf, Walter Muller