Patents Assigned to Styron Europe GmbH
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Patent number: 8426531Abstract: The present invention relates to an improved process for online measurement of monomer concentration, specifically bisphenol A, in an interfacial polycarbonate manufacturing process. Wherein the measurement is obtained by vibrational spectroscopy for the purpose of improving process control, specifically, controlling the carbonate polymer molecular weight.Type: GrantFiled: February 24, 2010Date of Patent: April 23, 2013Assignee: Styron Europe GmbHInventors: Jean P. Chauvel, Jr., John O. Osby, Wenzel P. Bartlett, Serena K. Stephenson, John S. Hanson, Jeffery S. Bradley, Walter D. Leatherwood, Rajesh P. Paradkar, Thoi H. Ho
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Patent number: 8426015Abstract: The disclosure relates to a polycarbonate resin film with excellent clarity and flame retardance. The compositions comprise 100 parts by weight of a polycarbonate resin (A). The compositions further comprise 0.10 to 0.18 parts by weight of an alkali metal or alkaline earth metal salt compound (B) of a perfluoroalkane sulfonic acid. The compositions further comprise 0.05 to 0.35 parts by weight of a silicone compound (C). The film has an average thickness of 200 to 500 ?m, a degree of haze of 5% or lower as measured according to the conditions specified in JIS K7105, and a flame retardance of VTM-1 or VTM-0 at a thickness of 300 ?m as measured according to the UL94 test specified by the Underwriters Laboratories (UL).Type: GrantFiled: June 12, 2007Date of Patent: April 23, 2013Assignee: Styron Europe GmbHInventors: Kazushi Horisawa, Koji Okada, Weijun Zhou
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Publication number: 20130090440Abstract: The invention provides a process for the continuous polymerization of a polymer comprising monomeric units derived from styrene and 1,3-butadiene, said process comprising: polymerizing the monomers in the presence of an initiator, and at least one polar agent selected from Formula 1; wherein R1 and R2 are each independently an alkyl, and preferably a C1-C4 alkyl; R3, R4, R5, R6, R7 and R8 are each independently selected from hydrogen or an alkyl, and preferably hydrogen or a C1-C4 alkyl; and wherein a 1,2-diene is added to the polymerization, and the 1,2-diene to active initiator (active for polymerization) molar ratio is from 0.1 to 1.0, preferably from 0.1 to 0.9, and more preferably from 0.1 to 0.85; and wherein the polar agent to the active initiator molar ratio is from 0.05 to 0.6, preferably from 0.1 to 0.5, more preferably from 0.15 to 0.3.Type: ApplicationFiled: June 15, 2011Publication date: April 11, 2013Applicant: STYRON EUROPE GMBHInventors: Silvia Valenti, Evemarie Hamann
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Patent number: 8357441Abstract: The present invention is an ignition resistant carbonate polymer composition, a method to make said composition and fabricated articles made therefrom. The ignition resistant carbonate polymer composition comprises: (i) an aromatic polycarbonate or an aromatic polyester carbonate, (ii) a graft polymer, (iii) optionally one or more thermoplastic vinyl (co)polymer, (iv) optionally one or more thermoplastic polyester polymer, (v) an aromatic phosphate compound, and (vi) a mixture of a fibril forming polytetrafluoroethylene polymer and a fluorothermoplast.Type: GrantFiled: July 29, 2009Date of Patent: January 22, 2013Assignee: Styron Europe GmbHInventors: Claude T. Van Nuffel, Pascal Lakeman, Jozef Van Dun, Giacomo Parisi, Mike J. Hale
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Patent number: 8304483Abstract: A feedstock concentrate material, including a first phase including fibers having a length greater than 5 mm; and a polymeric phase including a first polyolefin having a first melt flow rate; and a second polyolefin having a second melt flow rate. Kits, methods of using and resulting articles including the concentrate are also disclosed.Type: GrantFiled: September 11, 2009Date of Patent: November 6, 2012Assignee: Styron Europe GmbHInventors: Jeroen Van Poucke, Herbert Engelen
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Patent number: 8242231Abstract: The present invention relates to an improved process for recycling a coupling catalyst, preferably an amine catalyst in an interfacial polycarbonate manufacturing process. Specifically, the amine catalyst is recycled in an acidic wash water solution.Type: GrantFiled: November 16, 2009Date of Patent: August 14, 2012Assignee: Styron Europe GmbHInventor: Guenter A. Jueptner
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Publication number: 20120202949Abstract: The ductility/stiffness balance of a rubber-modified monovinylidene aromatic polymer, e.g., HIPS, is increased without increasing the rubber content of the polymer and/or changing the size of the average rubber particle by a process comprising the step of crosslinking the rubber such that the rubber-modified polymer has an optical crosslink index (OCLI) of <0.5 and an injection molded/compression molded (IM/CM) modulus ratio ?1.3.Type: ApplicationFiled: October 6, 2010Publication date: August 9, 2012Applicant: Styron Europe GmbHInventors: Gilbert C.E. Bouquet, Fredericus Slijkerman
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Patent number: 8217103Abstract: A chain end modified polymer comprising the reaction product of a living anionic elastomeric polymer and a silane-sulfide modifier A preferred class of modifiers includes compounds represented by the formula: (RO)x(R)ySi—R?—S—SiR3, wherein Si is silicon; S is sulfur; O is oxygen; x is an integer selected from 1, 2 and 3; y is an integer selected from 0, 1, and 2; x+y=3; R is the same or different and is: (C1-C16) alkyl; and R? is aryl, alkylaryl, or (C1-C16) alkyl. The invention further includes methods for making such chain end modified polymers, their use in preparing vulcanized elastomeric polymer compositions, and articles made from such compositions, including pneumatic tires, tire treads, belts, and the like. The subject compositions exhibit lower Tan ? at 60° C. values, while maintaining good processing characteristics, and a good balance of physical properties, including: abrasion resistance, tensile strength, modulus and elongation at break.Type: GrantFiled: August 4, 2011Date of Patent: July 10, 2012Assignee: Styron Europe GmbHInventors: Sven Thiele, Joachim Kiesekamp, Norbert Jantsch, Thomas Knispel
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Patent number: 8153545Abstract: Metal complexes, catalyst compositions containing the metal complexes, and processes for making the metal complexes and the catalyst compositions are described for the manufacture of polymers from ethylenically unsaturated addition polymerizable monomers. The metal complexes have chemical structures corresponding to one of the following formulae: wherein MI and MII are metals; T is nitrogen or phosphorus; P is a carbon, nitrogen or phosphorus atom; groups R1, R2 and R3 may be linked to each other; Y is a divalent bridging group; X, X1, and X2 are anionic ligand groups with certain exceptions; D is a neutral Lewis base ligand; and s, o, k, i, ii, p, m, a, b, c, d, c, t, and y are numbers as further described in the claims.Type: GrantFiled: February 25, 2011Date of Patent: April 10, 2012Assignee: Styron Europe GmbHInventor: Sven K. H. Thiele
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Patent number: 8058349Abstract: A method for melt-processing a polymer of a monovinyl aromatic compound, such as styrene, is disclosed. The method may include heating a polymer of a monovinyl aromatic compound volumetrically with microwave energy, wherein the polymer of a monovinyl aromatic compound includes: a discontinuous rubber phase; and a continuous poly(monovinyl aromatic) phase comprising up to 49 weight percent of at least one of an acrylate comonomer and a vinyl cyanide comonomer.Type: GrantFiled: November 14, 2008Date of Patent: November 15, 2011Assignee: Styron Europe GmbHInventors: Amaia Montoya-Goni, Ronald G. Van Daele, Roel Vossen, Michael Cook
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Patent number: 8053512Abstract: A backbone modified polymer comprising the reaction product of an elastomeric polymer and a sulfide modifier represented by Formula 1: AS—Y-Zm (Formula 1), and wherein Y is (C12-C100) aralkyl, (C12-C100) aryl, (C12-C100) alkyl, or (C12-C100) dialkylether (alkyl-O-alkyl), and wherein each may be optionally substituted with (C1-C4alkyl, (C1-C4alkoxy, (C7-C16aryl, (C7-C16 aralkyl, nitrile, amine, NO2, alkoxy, or thioalkyl; S is sulfur; A is hydrogen, —(S)p—R1 or -MR2R3R4; Z is —SH, —S-MR5R6R7, —S—(S)p—R8, —NR9R10, —NR11COR12, —O—CO—R13, —NCO, or —COOR14; M is silicon or tin; N is nitrogen; O is oxygen; m is the number one, two or three; p is the number one, two, three, four or five; R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13 and R14 are the same or different, and are each, independently, selected from hydrogen (H), (C1-C16) alkyl, (C6-C16) aryl, (C7-C16) aralkyl or (C3-C30) tri(hydrocarbyl)silyl, and wherein the hydrocarbyl groups are each independently selected from (C1-C16) alkyl, (C6-C16) aryl, orType: GrantFiled: December 14, 2007Date of Patent: November 8, 2011Assignee: Styron Europe GmbHInventors: Sven K. H. Thiele, Joachim Kiesekamp
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Patent number: 8053542Abstract: The invention provides a process for polymerizing a polymer comprising monomeric units derived from styrene and 1,3-butadiene, said process comprising: A) adding less than 60 weight percent of the total amount of the butadiene used in the polymerization, to a reactor comprising the total amount of styrene used in the polymerization and solvent; B) adding at least one initiator to the reactor, and allowing the reaction to proceed for a time t; C) adding the remaining amount of butadiene to the reactor in two or more separate additions; and wherein for each butadiene addition, the amount of subsequent butadiene added is less than, or equal to, the amount of butadiene added in the immediately prior addition; and wherein for each butadiene addition, the butadiene is added over a time, tnc, and after each addition, the reaction is allowed to proceed for a time, tnr, wherein n is the number of the butadiene addition, and for each addition, n is independently greater than, or equal to, 1.Type: GrantFiled: April 23, 2009Date of Patent: November 8, 2011Assignee: Styron Europe GmbHInventors: Evemarie Hamann, Hagen Bartossek
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Patent number: 8048960Abstract: The present invention is a rubber modified monovinylidene aromatic polymer composition where the rubber is a sulfanylsilane chain end modified elastomeric polymer. In the present invention the functionalized rubber provides sufficient grafting levels in standard graft polymerization process technologies to prepare desired rubber particle size distributions and morphologies. Across a range of rubber modified monovinylidene aromatic polymers, it has been found that the use of the modified elastomeric polymers according to the present invention can improve the combinations of resin properties, particularly clarity, surface and physical properties, including both rubber modified monovinylidene aromatic homopolymers (e.g., high impact polystyrene and copolymers (e.g., ABS). The functionalized rubbers have sulfanyl functional groups that provide an optimized reactive grafting site.Type: GrantFiled: March 27, 2008Date of Patent: November 1, 2011Assignee: Styron Europe GmbHInventors: Amaia Montoya-Goni, Jose M. Rego, Evemarie Hamann, Sven K. H. Thiele
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Publication number: 20110224389Abstract: The present invention relates to an improved process for recycling a coupling catalyst, preferably an amine catalyst in an interfacial polycarbonate manufacturing process. Specifically, the amine catalyst is recycled in an acidic wash water solution.Type: ApplicationFiled: November 16, 2009Publication date: September 15, 2011Applicant: Styron Europe GmbHInventor: Guenter A. Jueptner
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Publication number: 20110166295Abstract: Compositions comprising (a) a rubber-modified monovinylidene aromatic polymer, e.g., HIPS, and (b) a specified poly-alpha-olefin (PAO), e.g., an oligomer of hexene, octene, decene, dodecene and/or tetradecene, that has a dynamic viscosity value of from about 40 to about 500 centipoise (cP) at 40° C., exhibit improved combinations of environmental stress crack resistance, impact resistance and heat resistance as compared to compositions without such a PAO. The compositions are useful in the manufacture of articles, e.g., refrigerator liners and food packaging, which come in contact with the oils contained in various food stuffs.Type: ApplicationFiled: September 15, 2009Publication date: July 7, 2011Applicant: Styron Europe GmbHInventors: Gilbert Bouquet, Roeland Vossen, Rik Vanecckhoutte, Jean Peltier
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Patent number: 7960450Abstract: A flame retardant and light diffusing polycarbonate resin composition comprising 100 parts by weight of a polycarbonate resin (A), 0.1 to 6 parts by weight of a light diffusing agent (B) with an average particle diameter of 1 to 10 ?m, 0.03 to 1 part by weight of a light storing agent (C) with an average particle diameter of 1 to 20 ?m and 0.03 to 1.5 parts by weight of a silicone compound (D) wherein the silicone compound (D) has a branched main chain structure and contains organic functional groups and the presence of aromatic groups is essential as the organic functional groups but the presence of hydrocarbon groups other than aromatic groups is optional as the organic functional groups other than terminal groups.Type: GrantFiled: November 17, 2006Date of Patent: June 14, 2011Assignee: Styron Europe GmbHInventors: Akihito Kawagoshi, Koji Okada
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Patent number: 7915194Abstract: Metal complexes, catalyst compositions containing the metal complexes, and processes for making the metal complexes and the catalyst compositions are described for the manufacture of polymers from ethylenically unsaturated addition polymerizable monomers. The metal complexes have chemical structures corresponding to one of the following formulae: wherein MI and MII are metals; T is nitrogen or phosphorus; P is a carbon, nitrogen or phosphorus atom; groups R1, R2 and R3 may be linked to each other; Y is a divalent bridging group; X, X1, and X2 are anionic ligand groups with certain exceptions; D is a neutral Lewis base ligand; and s, o, k, i, ii, p, m, a, b, c, d, e, t, and y are numbers as further described in the claims.Type: GrantFiled: September 10, 2009Date of Patent: March 29, 2011Assignee: Styron Europe GmbHInventor: Sven K. H. Thiele