Blend Of Matched Optical Properties Patents (Class 525/932)
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Patent number: 8853330Abstract: Described herein are polymers comprising a polyester and at least one polyhedral oligomeric silsesquioxane, wherein the polyester is capable of forming a stereocomplex with a polymer comprising a complimentary polyester and composites thereof.Type: GrantFiled: February 4, 2013Date of Patent: October 7, 2014Assignee: Agency for Science Technology and ResearchInventors: Yew Wei Leong, Beng Hoon Maureen Tan, Ting Ting Lin, Yang Choo Chua, Weng Weei Tjiu, Chaobin He, Pui Kwan Wong
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Patent number: 8703283Abstract: The invention relates to selected polymer blends which can be used for production of films or sheets having reduced defects, and also to a process for preparation of the polymer blends.Type: GrantFiled: October 13, 2005Date of Patent: April 22, 2014Assignee: Topas Advanced Polymers GmbHInventors: Wolfram Goerlitz, Anne-Meike Schauwienold
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Patent number: 8252867Abstract: The present invention relates to an impact strength modifier for thermoplastic polyester resin and a thermoplastic polyester resin composition containing the same, more precisely an impact strength modifier for thermoplastic polyester resin prepared by graft-polymerization of a) 20-80 weight % of multilayered rubber latex in which the ratio of particle diameter (Pb/Pa) of an inner layer (Pa) to outer layer is 1.05-1.5, and glass transition temperature of the inner layer or the outer layer is up to ?30° C.; and b) 20-80 weight % of vinyl monomer. According to the present invention, a thermoplastic polyester resin composition having excellent transparency and improved impact strength can be provided by containing an impact strength modifier for thermoplastic polyester resin having multilayered structure in which content of rubber latex, glass transition temperature, particle diameter and refraction index are regulated.Type: GrantFiled: December 24, 2008Date of Patent: August 28, 2012Assignee: LG Chem, Ltd.Inventors: Yoon-Ho Kim, Geon-Soo Kim, Sang-Il Nam
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Patent number: 7868062Abstract: Disclosed is a polymeric article having a frosted and/or surface textured finish made from a polymeric resin comprised of a polymeric matrix and polymeric particles which are substantially spherical, highly crosslinked, have a mean particle size of between 15 and 70 micrometers and have a particle size distribution between 10-110 micrometers.Type: GrantFiled: May 21, 2009Date of Patent: January 11, 2011Assignee: Arkema FranceInventors: Shi Jun Yang, Fabio Giberti, Ralph H. Clark, Leslie A. Cohen
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Patent number: 7547736Abstract: Disclosed is a polymeric article having a frosted and/or surface textured finish made from a polymeric resin comprised of a polymeric matrix and polymeric particles which are substantially spherical, highly crosslinked, have a mean particle size of between 15 and 70 micrometers and have a particle size distribution between 10-110 micrometers.Type: GrantFiled: February 21, 2007Date of Patent: June 16, 2009Assignee: Arkema FranceInventors: Sh-Jun Yang, Fabio Giberti, Ralph Clark, Leslie Cohen
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Patent number: 7544724Abstract: Disclosed is a polymeric article having a frosted and/or surface textured finish made from a polymeric resin comprised of a polymeric matrix and polymeric particles which are substantially spherical, highly crosslinked, have a mean particle size of between 15 and 70 micrometers and have a particle size distribution between 10-110 micrometers.Type: GrantFiled: March 20, 2006Date of Patent: June 9, 2009Assignee: Arkema FranceInventors: Shi-Jun Yang, Fabio Giberti, Ralph Howard Clark, Leslie Alan Cohen
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Patent number: 7171103Abstract: A coated optical fiber can have a primary coating and a secondary coating, where the primary coating can have good microbending resistance and is obtained by curing a composition having a high cure speed. In one example, a coated optical fiber can include as optical fiber, a primary coating and a secondary coating. The optical fiber can have an attenuation increase of less than 0.650 dB/km at 1550 nm, with the primary coating having a modulus retention ratio of at least 0.5, a glass transition temperature of ?35° C., and where the primary coating is obtained by curing a primary coating composition having a cure dose to attain 95% of the maximum attainable modulus of less than 0.65 J/cm2.Type: GrantFiled: October 3, 2005Date of Patent: January 30, 2007Assignee: DSM IP Assets B.VInventors: Jan van Eekelen, Sandra Nagelvoort, Duurt Alkema, Paul Buijsen, Huimin Cao, Robert W. Johnson, David M. Szum
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Patent number: 6362303Abstract: Thermally reversible light scattering materials are provided in accordance with the invention including a low melting, polymeric material dispersed in a polymer matrix; a first polymer which upon heating from a temperature below its melting point to a temperature above its melting point changes from a light scattering solid to a liquid, the first polymer being dispersed in a matrix provided by a second polymer to form a light scattering polymer material when cold and a less or non-light scattering material when hot; and thermally reversible light scattering materials which go from light scattering at lower temperatures to less or non-light scattering at higher temperatures.Type: GrantFiled: May 19, 2000Date of Patent: March 26, 2002Assignee: Pleotint, L.L.C.Inventors: Harlan J. Byker, Frederick A. Millett, Paul H. Ogburn
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Patent number: 6333383Abstract: A non-crystalline polyester resin composition of the present invention is excellent in processing properties of its molding, mechanical properties and chemical properties, in addition to its moldability, and is used in a variety of fields, which comprises 50 to 99% by weight of a non-crystalline polyester resin (component A) and 1 to 50% by weight of an epoxy-modified block copolymer (component B), total amount of the components A and B being 100, component B being obtained by epoxidation of a block copolymer (B3) comprising a polymer block (B1) containing mainly a unit based on a vinyl aromatic compound and a polymer block (B2) containing mainly a unit based on a conjugated diene compound, an epoxy equivalent of the component B being in the range of 400 to 7,500, and an absolute difference-value of the refractive index between the components A and B being 0.008 or less.Type: GrantFiled: June 1, 2000Date of Patent: December 25, 2001Assignee: Daicel Chemical Industries, Ltd.Inventor: Masaya Ohnishi
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Patent number: 6296867Abstract: A theraputic lens for removable placement onto a surface of a cornea of an eye, and methods for making and using the same. The lens has a first surface adapted for exposure to light and a second surface adapted to contact the surface of the cornea. The first and second surfaces define a portion which is adapted to allow visible light to pass and includes living cells forming at least part of the portion. In addition, the curvature of the lens can be modified by positioning the contact lens onto the surface of the cornea of the eye, and directing a beam of radiant energy onto the second surface in a predetermined pattern to ablate a section of the portion to form a lens of a desired shape.Type: GrantFiled: April 28, 2000Date of Patent: October 2, 2001Inventor: Gholam A. Peyman
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Patent number: 6201045Abstract: A non-birefringence optical resin material is obtained by forming a transparent matrix from a polymeric resin having an orientation birefringence with a positive or negative sign, adding a low molecular weight substance exhibiting an orientation birefringence with a sign opposite to that of the orientation birefringence of the polymeric resin for the matrix and thus offsetting the orientation birefringence of the polymeric resin for the matrix with the orientation birefringence of the low molecular weight substance.Type: GrantFiled: October 21, 1997Date of Patent: March 13, 2001Inventor: Yasuhiro Koike
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Patent number: 6063874Abstract: Color stable thermoplastic resin compositions include a polyetherimide resin, polyester resin and phosphorus and/or phenol containing color stabilizers, and exhibit resistance to elevated temperature, elimination of black specks, and improved mechanical properties.Type: GrantFiled: August 31, 1998Date of Patent: May 16, 2000Assignee: General Electric Co.Inventors: Yimin Jin, Martin Lindway, Kang Xi, Raymond Utley
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Patent number: 5977201Abstract: Polymer systems having reversibly temperature-dependent radiation transmission which are crosslinked with radiation induction, a process for their production, and their use for reversibly temperature-dependent control of the radiation transmission of glazing systems and solar-energy devices.Type: GrantFiled: January 6, 1998Date of Patent: November 2, 1999Assignee: BASF AktiengesellschaftInventors: Ekkehard Jahns, Hubertus Kroner, Wolfgang Schrof, Utz Klodwig
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Patent number: 5767200Abstract: An optical resin, of which the refractive index continuously changes in a specific direction, is produced by filling a polymerization container with a mixed solution containing at least one type of polymerizable monomer or polymerizable monomer sol and at least one type of substance whose solubility parameter differs by 7 (cal/cm.sup.3).sup.1/2 or less and refractive index by 0.001 or more from those of a polymer produced by polymerization of the monomer, and by subjecting the mixture to polymerization reaction by applying heat or energy rays to the container from outside so that the polymerization reaction starts and progresses preferentially from a particular region of the mixture, thus forming a concentration gradient of the substance having different refractive index.The polymerization container may be made of a polymer which swells and dissolves into the mixed solution from an inner wall thereof.Type: GrantFiled: June 7, 1995Date of Patent: June 16, 1998Inventor: Yasuhiro Koike
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Patent number: 5763514Abstract: An optical resin, of which the refractive index continuously changes in a specific direction, is produced by filling a polymerization container with a mixed solution containing at least one type of polymerizable monomer or polymerizable monomer sol and at least one type of substance whose solubility parameter differs by 7 (cal/cm.sup.3).sup.1/2 or less and refractive index by 0.001 or more from those of a polymer produced by polymerization of the monomer, and by subjecting the mixture to polymerization reaction by applying heat or energy rays to the container from outside so that the polymerization reaction starts and progresses preferentially from a particular region of the mixture, thus forming a concentration gradient of the substance having different refractive index.The polymerization container may be made of a polymer which swells and dissolves into the mixed solution from an inner wall thereof.Type: GrantFiled: June 7, 1995Date of Patent: June 9, 1998Inventor: Yasuhiro Koike
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Patent number: 5726245Abstract: Highly transparent, impact-resistant molding compositions based on polymethyl methacrylate (PMMA), having excellent color stability both during processing at high temperatures, as well as when under thermal stress, as a result of multiple processing with simultaneously high weathering stability and stability of the optical characteristics with the effect of water. Preparation is carried out according to a multi-step extruder process, wherein an extruder for the melt coagulation and one for the compounding are connected in series. Addition of small quantities of reducing inorganic phosphorous compounds at a later stage provides prolonged effectiveness.Type: GrantFiled: November 27, 1996Date of Patent: March 10, 1998Assignee: Roehm GmbH Chemische FabrikInventors: Uwe Numrich, Michael Wicker, Thomas Rhein, Thomas Suefke
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Patent number: 5721313Abstract: A composition comprising a water-in-oil polymer emulsion wherein the polymer is the reaction product of the following:(a) an ethylenically unsaturated carboxylate having between about 3 and about 6 carbon atoms;(b) an ethylenically unsaturated monomer which is nonionic in nature;(c) an ethylenically unsaturated monomer containing one or more sulfonate or sulfoalkyl groups;(d) an ethylenically unsaturated monomer having surface active properties; and(e) a crosslinking agent is provided. The composition has a multiple number of uses, such as in ink, pigment or dye thickening.Type: GrantFiled: November 2, 1995Date of Patent: February 24, 1998Assignee: Rhone-Poulenc Inc.Inventors: Dominic Wai-Kwing Yeung, Dipak Lad
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Patent number: 5556916Abstract: A resin composition is provided which comprises a mixture of A) 100 parts by weight of an ABS graft copolymer comprising as component monomers an acrylonitrile compound and a vinyl aromatic compound in a weight ratio of 10:90 to 50:50, and B) 5 to 30 parts by weight of an ethylene oxide copolymer comprising ethylene oxide as a first monomer and a second monomer and containing at least 50 wt. % of ethylene oxide, the ethylene oxide copolymer having a refractive index (n.sub.D.sup.20) of at least 1.50, wherein said second monomer has a refractive index of at least 1.54 and is 2-phenylphenyl glycidyl ether or 1-naphthyl glycidyl ether, and wherein the molecular weight of the ethylene oxide copolymer is 1 to 5 in terms of a reduced viscosity as measured at 80.degree. C. using 0.1 g/dl monochlorobenzene solution thereof.Type: GrantFiled: November 4, 1994Date of Patent: September 17, 1996Assignee: Daiso Co. Ltd.Inventors: Yasuo Matoba, Yasumi Shimizu, Katsuhito Miura, Sojiro Kitano, Takahiro Sakashita, Hidekazu Tanaka
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Patent number: 5541247Abstract: An optical resin, of which the refractive index continuously changes in a specific direction, is produced by filling a polymerization container with a mixed solution containing at least one type of polymerizable monomer or polymerizable monomer sol and at least one type of substance whose solubility parameter differs by 7 (cal/cm.sup.3).sup. 1/2 or less and refractive index by 0.001 or more from those of a polymer produced by polymerization of the monomer, and by subjecting the mixture to polymerization reaction by applying heat or energy rays to the container from outside so that the polymerization reaction starts and progresses preferentially from a particular region of the mixture, thus forming a concentration gradient of the substance having different refractive index.The polymerization container may be made of a polymer which swells and dissolves into the mixed solution from an inner wall thereof.Type: GrantFiled: June 17, 1993Date of Patent: July 30, 1996Inventor: Yasuhiro Koike
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Patent number: 5494969Abstract: There is provided a cycloolefin polymer composition comprising 8 to 40% by weight of a cycloolefin polymer [A] and 92 to 60% by weight of a cycloolefin polymer [B], both having specific properties, wherein a difference .DELTA.n.sub.D =.vertline.n.sub.D (A)-n.sub.D (B).vertline. between the refractive index n.sub.D (A) of the polymer [A] and the refractive index n.sub.D (B) of the polymer [B] is not more than 0.015. This composition is excellent in impact resistance, transparency and heat resistance, and has a good balance of these properties.There is also provided a cycloolefin copolymer composition comprising 8 to 40% by weight of a cycloolefin elastomer component [Aa] of an .alpha.-olefin, a specific cycloolefin and a non-conjugated diene which contains a polymerizable carbon-carbon double bond; and 92 to 60% by weight of a cycloolefin copolymer component [Ba] which is obtained by copolymerizing an .alpha.Type: GrantFiled: January 27, 1994Date of Patent: February 27, 1996Assignee: Mitsui Petrochemical Industries, Ltd.Inventors: Yoshiharu Abe, Toshihiro Sagane, Yoichiro Tsuji
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Patent number: 5430104Abstract: Polymer mixtures made from two different polymer components and exhibiting LCST behavior are provided for use in applications which require temperature-dependent light permeability. The polymer mixtures P are made from:P1: from 98 to 2% by weight of poly-.alpha.-methylstyrene (PAMs); andP2: from 2 to 98% by weight of polyvinyl methyl ether (PVMe).Type: GrantFiled: February 14, 1994Date of Patent: July 4, 1995Assignee: Roehm GmbH Chemische FabrikInventors: Werner Siol, Ulrich Terbrack
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Patent number: 5346954Abstract: Polymer particles in a size range between 2 and 15 micrometers, and having a refractive index close to, but not identical with, that of a matrix polymer and optionally having one or more enclosing shells, the outer shell being compatible with the matrix polymer, impart light-diffusing properties to the matrix polymer without degrading its physical properties, while the particles having a closer refractive index match to the matrix polymer impart gloss reduction to the surface of the matrix polymer.Type: GrantFiled: November 17, 1992Date of Patent: September 13, 1994Assignee: Rohm and Haas CompanyInventors: Jiun-Chen Wu, William J. Work, David L. Dunkelberger, Newman M. Bortnick
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Patent number: 5342889Abstract: The present invention relates to electrostatic dissipative polymeric compositions comprising an effective amount of a chain extended polymer and a matrix polymer or matrix polymer blend. The chain extended polymer of the subject invention has electrostatic dissipative properties and is formed from low molecular weight polyethers which are reacted with a chain extender to furnish a useful additive.Type: GrantFiled: July 10, 1991Date of Patent: August 30, 1994Assignee: The B. F. Goodrich CompanyInventors: Francis R. Sullivan, Elaine A. Mertzel, Edmond G. Kolycheck
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Patent number: 5322900Abstract: Compatible polymer blends PM, exhibiting a single glass transition temperature Tg comprise(A) 0.1-99.9 wt. % of a polymer P1 comprising at least 95 wt. % styrene; and(B) 99.9-0.1 wt % of a polymer P2 comprising(a) more than 90 wt. % and up to 100 wt. % of ethyl methacrylate, and(b) 0 wt. % up to less than 10 wt. % of at least one monomer copolymerizable with ethyl methacrylate, provided that (a) plus (b) add up to 100 wt. %.The compatible polymer blends may be formulated with another polymer P3, chemically differentiable from P1 and P2, with P3 being incompatible with P1, P2 and PM, to form compositions of better impact resistance than PM. The compatible polymer blends find use in the production of weather-resistant items; data-storage discs, especially for optically readable information; and optical gradient fibers.Type: GrantFiled: February 24, 1992Date of Patent: June 21, 1994Assignee: Rohm GmbH Chemische FabrikInventors: Werner Siol, Erwin Felger, Ulrich Terbrack
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Patent number: 5319039Abstract: The tensile strength of a thermoplastic, transparent, aromatic polyester is markedly improved by incorporating into the polyester a thermoplastic, rigid polyurethane. The resultant transparent blend is particularly useful in making eyeglasses, toothbrushes, and screw-driver handles.Type: GrantFiled: April 30, 1992Date of Patent: June 7, 1994Assignee: The Dow Chemical CompanyInventors: Paul J. Moses, Augustin T. Chen
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Patent number: 5290862Abstract: A tough polymer alloy is provided and comprises:(i) from 30 to 83 weight percent of a brittle polymer;(ii) from 3 to 50 weight percent of a rubbery polymer; and(iii) from 15 to 67 weight percent of a ductile polymer provided that the ductile polymer and the rubbery polymer are at least compatible.Type: GrantFiled: October 13, 1992Date of Patent: March 1, 1994Assignee: Novacor Chemicals (International) S.A.Inventor: William G. Blasius
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Patent number: 5286604Abstract: A photothermal-tackifiable composition, useful as a coating on a substrate, consisting of an optically clear blend of two or more polymers, one or more of which is capable of undergoing a thermochemical reaction, and a photothermosensitive compound, an infrared absorbing dye that generates locally high heat on exposure to infrared or near-infrared radiation, is disclosed. Also disclosed is a process for coating such a composition on a support, exposing the composition to infrared radiation and toning the imagewise exposed composition A "peel-apart" embodiment is also disclosed.Type: GrantFiled: November 25, 1992Date of Patent: February 15, 1994Assignee: E. I. Du Pont de Nemours and CompanyInventor: Howard E. Simmons, III
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Patent number: 5237004Abstract: Polymer particles in a size range between 2 and 15 micrometers, and having a refractive index close to, but not identical with, that of a matrix polymer and optionally having one or more enclosing shells, the outer shell being compatible with the matrix polymer, impart light-diffusing properties to the matrix polymer without degrading its physical properties, while the particles having a closer refractive index match to the matrix polymer impart gloss reduction to the surface of the matrix polymer.Type: GrantFiled: April 2, 1991Date of Patent: August 17, 1993Assignee: Rohm and Haas CompanyInventors: Jiun-Chen Wu, William J. Work, David L. Dunkelberger, Newman M. Bortnick
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Patent number: 5171777Abstract: Blends of polymers of vinyl acetate and polymers derived from acrylic acid have been discovered which exhibit thermodynamic miscibility. These polymer blends exhibit excellent mechanical compatibility, provide enhanced toughness and strength superior to the sum of the weight averaged properties of the constituent polymers and are useful in molding structures such as films and in compounded formulations such as coatings, emulsions and adhesives.Type: GrantFiled: December 26, 1990Date of Patent: December 15, 1992Assignee: Air Products and Chemicals, Inc.Inventors: Jeffrey A. Kuphal, Lloyd M. Robeson, Dennis Sagl
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Patent number: 4904421Abstract: A method for preparing a soft ocular lens, which comprises machining a machinably hard polymer blend body composed essentially of a soft lens material and a hard polymer into an ocular lens shape, and removing the hard polymer from the shaped product.Type: GrantFiled: November 12, 1987Date of Patent: February 27, 1990Assignee: Tomei Sangyo Kabushiki KaishaInventors: Ichiro Ando, Toru Kawaguchi
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Patent number: 4769415Abstract: A resin composition comprising a block copolymer which comprises an intermediate block of a hydrogenated conjugated diene polymer and terminal blocks of an aromatic vinyl compound polymer, the composition being characterized in that the composition comprises:(a) 20 to 90 parts by weight of a block copolymer having terminal blocks in an amount of about 10 to about 20% by weight based on the copolymer (a), and(b) 80 to 10 parts by weight of a block copolymer mixed with the copolymer (a) and having terminal blocks in an amount of about 25 to about 35% by weight based on the copolymer (b).Type: GrantFiled: June 9, 1987Date of Patent: September 6, 1988Assignee: Dainippon Plastics Co., Ltd.Inventors: Masahiro Hotta, Tadasu Inoue
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Patent number: 4764563Abstract: PVC impact modifier composition and clear modified PVC comprising PVC and a graft copolymer including from 60 to 70 wt % of a butadiene based rubber grafted with 40 to 30 wt % of a styrenic composition and a ethylenically unsaturated nitrile in a ratio of about 3/1 to 5/1. These compositions have excellent clarity and good impact properties.Type: GrantFiled: February 27, 1987Date of Patent: August 16, 1988Assignee: Borg-Warner Chemicals, Inc.Inventors: Frank L. Meredith, Lewis E. Ferguson
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Patent number: 4707076Abstract: Curable compositions having at least one ethylenically unsaturated monoene, a polyene and a curing initiator are disclosed for use with optical fibers. The monoene and polyene components may be substituted with organo functional compounds to selectively vary the properties of the cured compositions.Type: GrantFiled: April 12, 1985Date of Patent: November 17, 1987Assignee: Ensign-Bickford Industries, Inc.Inventors: Bolesh J. Skutnik, Harry L. Brielmann, Jr.
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Patent number: 4506045Abstract: Thermoplastic moulding compositions consisting of from 1 to 99% by weight of at least one cellulose ester or cellulose mixed ester, from 99 to 1% by weight of an aliphatic polyester or polyether containing carbonate groups and, optionally, standard auxiliaries and additives.Type: GrantFiled: September 14, 1983Date of Patent: March 19, 1985Assignee: Bayer AktiengesellschaftInventors: Helmut Waniczek, Christian Lindner, Carlhans Suling, Herbert Bartl, Walter Uerdingen
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Patent number: 4287316Abstract: A transparent resin composition comprising (1) 6 to 100% by weight of a nitrile graft copolymer comprising a rubber trunk polymer and a branch polymer grafted thereon, which has been obtained by graft-polymerizing onto the rubber trunk polymer a monomer mixture containing an unsaturated nitrile and a monomer copolymerizable therewith, and (2) 0 to 94% by weight of a random copolymer of an unsaturated nitrile and a monomer copolymerizable therewith, the resin components of the resin composition other than the rubber trunk polymer constituting a matrix resin, wherein(a) said rubber trunk polymer has a glass transition temperature of not higher than 0.degree. C. and constitutes 4 to 25% by weight of the resin composition,(b) the unsaturated nitrile constitutes 25 to 90% by weight of the matrix resin in the resin composition,(c) the difference in the refractive indexes between the rubber trunk polymer and the matrix resin is not more than 0.Type: GrantFiled: April 19, 1979Date of Patent: September 1, 1981Assignee: Kureha Kagaku Kogyo Kabushiki KaishaInventors: Akira Kaneko, Masaki Ohya, Masayasu Suzuki, Akio Kobayashi