Only Two Carboxylic Acid Or Ester Groups, E.g., Distearyl Thiodipropionate, Etc. Patents (Class 524/303)
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Publication number: 20150104663Abstract: The invention concerns an olefinically unsaturated radial styrenic block copolymer having the general formula A-B—Y—(B-A)n wherein each A is independently a polymer block composed of at least 90 mol. % of an alkenyl aromatic hydrocarbon, each B is independently a polymer block composed of at least 90 mol. % of one or more conjugated dienes, Y is the remnant of a coupling agent, and n is an integer from 2 to 5. The invention is also an improved vulcanizer-free latex comprising water and the olefinically unsaturated radial styrenic block copolymer. Moreover, the invention concerns a process for preparing articles by coagulation dipping from the improved latex and dipped goods made from such latex.Type: ApplicationFiled: October 9, 2014Publication date: April 16, 2015Applicant: KRATON POLYMERS U.S. LLCInventors: Wouter DE JONG, Maarten TROMP
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Patent number: 8802801Abstract: A self-healing polymer additive includes diene (e.g. butadiene, cyclohexadiene, pentadiene, tetrahydrofuron or their derivatives) and dienophile (e.g. maleic anhydride, maleamide, conjugated carbonyls or their derivatives etc.). One polymer includes tetrahydrofuron and maleimide. Furfurylamine 12 (1-10 gm) is diluted in acetone. Under an inert atmosphere an equivalent amount of granular maleic acid is added slowly, and the reaction is allowed to take place. Resulting maleamic acid precipitates. The maleamic acid product is separated, dried and purified by re-crystallization. The maleamic (1-5 gm) acid is dissolved in acetic anhydride along with a catalytic amount of sodium acetate. The resulting solution is heated for a few hours in 80-120° C. The precipitated final product is separated, purified and dried in a vacuum.Type: GrantFiled: March 26, 2012Date of Patent: August 12, 2014Assignee: Oceanit Laboratories, Inc.Inventors: Ashavani Kumar, Vinod P. Veedu, Venkat Kamavaram, Sumil Thapa
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Publication number: 20130295306Abstract: Disclosed are a copolymeric polyester resin composition having outstanding colour stability (transparency) and a production method therefor. The copolymeric polyester resin composition comprises: between 95 and 99.99 percent by weight of a copolymeric polyester resin having a structure which is obtained by the copolymerisation of a dicarboxylic acid component and a diol component that comprises isosorbide, and in which there is repetition of a dicarboxylic acid moiety derived from the dicarboxylic acid component and a diol moiety derived from the diol component; and between 0.01 and 5 percent by weight of an antioxidant selected from the group consisting of hindered phenol-based antioxidants, phosphite-based antioxidants, thioether-based antioxidants and mixtures thereof.Type: ApplicationFiled: January 30, 2012Publication date: November 7, 2013Applicant: SK CHEMICALS CO., LTD.Inventor: JVC KENWOOD Corporation
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Patent number: 8524816Abstract: One embodiment of the invention includes a product including a coating comprising (a) a primary resin and a blocked isocyanate, and (b) at least one bio-diesel fuel degradation product neutralizing material.Type: GrantFiled: March 10, 2008Date of Patent: September 3, 2013Assignee: Magni Industries, Inc.Inventors: Paul Badyrka, Thomas T. Haig, Warren E. Knape, Gregory Lee Tarrance
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Patent number: 8173731Abstract: The instant invention relates to a composition and process for the stabilization of halogen containing polymer slurries, in particular polyvinylchloride (PVC). The composition comprises a halogen containing polymer in the form of an aqueous suspension or emulsion, a partially hindered phenolic antioxidant and selected sulfur containing antioxidants, which are both solid at 20° C. A further aspect of the invention is the use of specific antioxidant mixtures for the stabilization of halogen containing polymer suspensions or emulsions, in particular PVC.Type: GrantFiled: November 1, 2010Date of Patent: May 8, 2012Assignee: BASF SEInventors: Alex Wegmann, Pascal Xanthopoulos
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Patent number: 8168707Abstract: A thermoplastic composition comprises, based on the total weight of the composition: 51-90 wt % of a polyester, 10-49 wt % of an ABS impact modifier; 0 to 20 wt % of a multifunctional epoxy compound; 0-40 wt % of a filler; 0-2 wt % of a fibrillated fluoropolymer; and from more than 0 to 5 wt % of a stabilizer composition. An article blow molded or injection molded from the composition has a multi-axial impact total energy from 40-100 Joules at ?30° C.; a ductility of more than 90%, a permeability of more than 0 to less than or equal to 1.5 g/m2-day, measured after exposure Fuel C vapor for 20 weeks at 40° C.; an MVR of 1-20 cc/10 min; a flexural modulus of greater than 1300 MPa; and retains at least 75% of its initial tensile elongation at break after exposure to Fuel E85 for 28 days at 70° C.Type: GrantFiled: August 7, 2008Date of Patent: May 1, 2012Assignee: Sabic Innovative Plastics IP B.V.Inventors: Parminder Agarwal, Donald Howard Ellington, Robert Russell Gallucci, Josephus Gerardus M. van Gisbergen, Vishvajit Chandrakant Juikar, Ihab Odeh, Sathish Kumar Ranganathan, Kenneth Frederick Miller, Veeraraghavan Srinivasan
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Publication number: 20110308836Abstract: The invention relates to cover compositions for electric power cables having a polyolefin and a styrene copolymer. The styrene copolymer 1) has a styrene content of 55 percent (by weight base on the total styrene copolymer) or greater; 2) contains a random arrangement of styrene and at least one other block polymer; and/or 3) contains a triblock having the formula S-AS-S, wherein S is styrene and A is alkylene or a mixture of different alkylenes. The cover can be an insulation or a jacket.Type: ApplicationFiled: June 17, 2011Publication date: December 22, 2011Applicant: General Cable Technologies CorporationInventors: Jianmin LIU, Vijay MHETAR, James FREESTONE
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Patent number: 7981971Abstract: A compounding agent for rubber vulcanization containing an amino alcohol salt of a carboxylic acid group-containing disulfide, obtained by a reaction of a dithiocarboxylic acid and an amino alcohol, having the formula (i):Type: GrantFiled: September 26, 2008Date of Patent: July 19, 2011Assignee: The Yokohama Rubber Co., Ltd.Inventors: Wonmun Choi, Takashi Kakubo, Yuuki Shimizu
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Publication number: 20110009550Abstract: Provided are an organopolysiloxane composition for producing a rope structure excellent in fatigue resistance, a rope structure using the same, and a process for producing the rope structure. The organopolysiloxane composition comprises an organopolysiloxane having an average polymerization degree of 50,000 to 200,000 and represented by the following formula (I): wherein X1, X2, X3 and X4 are the same or different, each independently representing —H, —OH, —COOH, —R, —NH2, —ROH, —RCOOH, or —RNH2; R representing an alkyl group or an aryl group; and each of m and n independently denotes an integer of not less than 1. The organopolysiloxane composition is applied to liquid crystalline polymer filaments in the process of producing the rope structure from the filaments.Type: ApplicationFiled: September 20, 2010Publication date: January 13, 2011Applicant: KURARAY CO., LTD.Inventors: Akihiro Uehata, Yuji Ogino, Mariko Mine, Youichi Yamamoto, Masao Kawamoto
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Patent number: 7714049Abstract: A compounding agent for rubber vulcanization comprising an amine salt compound of a carboxylic acid group-containing disulfide having the formula (I): wherein R1, R2 and R3 are independently hydrogen or a C1-C20 organic group which may have a heteroatom and/or a substituent group, and X is a C2-C20 organic group which may have a heteroatom and/or a substituent group, a method for producing the same and a rubber composition containing the same, capable of improving the vulcanization rate and vulcanized rubber physical properties, without having a detrimental effect on the scorch time.Type: GrantFiled: August 9, 2007Date of Patent: May 11, 2010Assignee: The Yokohama Rubber Co., Ltd.Inventors: Wonmun Choi, Yuuki Shimizu
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Patent number: 7700677Abstract: The present inventions relates to a process for the preparation of a PVC homopolymer solution containing PVC in concentration greater than 5 wt %, comprising adding solid PVC to an organic solvent containing a dissolving agent selected from phthalates, adipates, phosphates, sebacates and azelates, and stirring the same until a clear solution is obtained, a process for the manufacturing of the PVC sheet, comprising applying the PVC, homopolymer solution, and a PVC film, whenever manufactured by the process of the PVC sheet. The present invention provides a process for the preparation of the PVC homopolymer solution, the transparent solution which is stable and in which no precipitation or gel formation occurs for long periods of time, the PVC dissolving solution without applying any external heat, and the PVC sheet by efficient and inexpensive method.Type: GrantFiled: May 19, 2004Date of Patent: April 20, 2010Assignee: E.M.A.T. Technologies Ltd.Inventors: Moshe Lipper, William Gay Hughes Games
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Publication number: 20090281216Abstract: The present invention relates to polycarbonate compositions comprising: A) an aromatic polycarbonate and/or aromatic polyester carbonate; B) a graft polymer obtainable by co-precipitation of a mixture of at least two graft polymer dispersions B.1 and B.2, wherein the production of the graft polymer component B.1 takes place using at least one redox system as initiator and wherein the production of the graft polymer component B.2 takes place using at least one persulfate compound as initiator; C) optionally a vinyl (co)polymer and/or polyalkylene terephthalate; D) optionally a phosphorus-containing flame retardant; E) at least one phenolic antioxidant; F) optionally a neutral phosphorus- or sulfur-containing co-stabilisers (synergists); and G) optionally additives. Compositions of the present invention are distinguished by an optimum combination of good hydrolysis resistance and a light natural colour.Type: ApplicationFiled: April 22, 2009Publication date: November 12, 2009Applicant: BAYER MATERIALSCIENCE AGInventors: Evgueni AVTOMONOV, Andreas SEIDEL, Thomas ECKEL, Eckhard WENZ
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Patent number: 7534824Abstract: A polymer composition which comprises a polymer, a phosphorus compound (a), and a phenol compound (b). The phosphorus compound (a) is, e.g., at least one member selected from compounds represented by the following formula (1). The phenol compound (b) is, e.g., at least one member selected from compounds represented by the following general formula (4), wherein in the general formula (1), the R1 represents C1-20 alkyl, allyl, cycloalkyl, phenyl, or alkoxyalkyl and n is 1 or 2, provided that when two R1's are present, then the R1's may be the same or different, wherein in the general formula (4), the R4's each independently represents C1-20 alkyl, allyl, cycloalkyl, phenyl, alkoxy, or alkylthiomethyl.Type: GrantFiled: July 20, 2005Date of Patent: May 19, 2009Assignee: JSR CorporationInventor: Hisao Ono
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Publication number: 20080249214Abstract: The instant invention relates to a stabilized composition of methylmethacrylate-butadiene-styrene graft copolymers with selected sterically hindered phenolic antioxidants and thioethers. Further subjects of the invention are a process for the stabilization of methylmethacrylate-butadiene-styrene graft copolymers and the use of selected sterically hindered phenolic antioxidants together with a thioether for the thermal stabilization of said graft copolymer.Type: ApplicationFiled: September 1, 2004Publication date: October 9, 2008Inventors: Alex Wegmann, Pascal Xanthopoulos
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Publication number: 20080227897Abstract: One embodiment of the invention includes a product including a coating comprising (a) a primary resin and a blocked isocyanate, and (b) at least one bio-diesel fuel degradation product neutralizing material.Type: ApplicationFiled: March 10, 2008Publication date: September 18, 2008Applicant: Magni Industries, Inc.Inventors: Paul Badyrka, Thomas T. Haig, Warren E. Knape, Gregory Lee Tarrance
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Patent number: 7423083Abstract: A photosemiconductor encapsulating resin composition, excellent in light transmittance, ultraviolet resistance and heat resistance, comprising the following component (A) and component (B): (A): a (meth)acrylic polymer containing an epoxy group, and (B): at least one hardener selected from the group consisting of the following components (b1) to (b4): (b1) a polyvalent carboxylic acid, (b2) a polyvalent carboxylic anhydride, (b3) a reaction product of a polyvalent carboxylic acid with a compound of the following general formula (B-1), and (b4) a reaction product of a polyvalent carboxylic anhydride with a compound of the following general formula (B-2) wherein R1 to R6 represent each independently a hydrogen atom or an alkyl group having 1 to 8 carbon atoms, R3 and R4 may be bonded to form an alkylene group having 1 to 8 carbon atoms; R7 represents an alkylene group; a methylene group contained the alkylene group and the alkyl group represented by R1 to R7 may be substituted by an ether group anType: GrantFiled: September 12, 2002Date of Patent: September 9, 2008Assignee: Sumitomo Chemical Company LimitedInventors: Yujiro Kawaguchi, Shigeki Naitoh, Toshiyuki Hasegawa
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Patent number: 7312266Abstract: Organic thiol compounds based on pentaerythritol and dipentaerythritol are described herein. More specifically, the compounds of the present invention are mixed esters of pentaerythritol and dipentaerythritol having at least one sulfhydryl group and preferably a plurality of sulfhydryl groups as well as at least one non-thiol-containing group. The organic thiol compounds are utilized to plasticize and/or heat stabilize halogen-containing polymer compositions especially poly(vinyl chloride) compositions. The compositions are substantially free or free of metal-based stabilizers, Lewis acids and terpenes. The compounds of the present invention are ideally utilized in polymers normally susceptible to deterioration and color change which can occur during processing of the polymer or exposure of the polymer to certain environments and surprisingly also serve as excellent plasticizers.Type: GrantFiled: October 12, 2004Date of Patent: December 25, 2007Assignee: The College of William and MaryInventors: William Herbert Starnes, Jr., Bin Du
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Patent number: 7250457Abstract: Aromatic and aliphatic organic thiol compounds are disclosed which can be utilized to plasticize and/or stabilize halogen-containing polymer compositions, especially poly(vinyl chloride) compositions. Compounds of the present invention are utilized in polymers normally susceptible to deterioration and color change, which typically occurs during processing of the polymer or exposure to certain environments.Type: GrantFiled: May 19, 2004Date of Patent: July 31, 2007Assignee: The College of William and MaryInventors: William Herbert Starnes, Jr., Bin Du
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Patent number: 7232643Abstract: A positive resist composition includes a resin component (A) which contains an acid dissociable dissolution inhibiting group and displays increased alkali solubility under the action of acid, an acid generator component (B) that generates acid on exposure, and a compound (C) represented by a general formula (1) shown below: (wherein, each R1 group and each R3 group represents, independently, a hydrogen atom, an alkyl group of 1 to 3 carbon atoms, or a cycloalkyl group of 4 to 6 carbon atoms, provided at least one of the R1 and R3 groups is a cycloalkyl group of 4 to 6 carbon atoms, n represents an integer from 1 to 3, R2 represents an alkyl group of 1 to 3 carbon atoms, and X represents an alkylene group of either 4 or 5 carbon atoms).Type: GrantFiled: May 25, 2005Date of Patent: June 19, 2007Inventor: Kazuyuki Nitta
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Patent number: 6992124Abstract: The present invention relates to a synergistic additives mixture for producing calendered polyolefin articles, comprising A) at least one component from the group of peroxide-destroying phosphorus or sulfur compounds, B) at least one component from the group of phenolic antioxidants, C) at least one component from the group of sterically hindered amines, and D) if desired, further additives. Using this additive mixture prevents sticking to the hot roll surfaces and reduces the degradation of the polymer.Type: GrantFiled: February 3, 1999Date of Patent: January 31, 2006Assignee: Clariant GmbHInventors: Christian Wick, Gerhard Pfahler, Alexander Lichtblau
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Patent number: 6984428Abstract: Pressure sensitive adhesive strip which is detachable without destruction and without leaving a residue.Type: GrantFiled: November 2, 2001Date of Patent: January 10, 2006Assignee: tesa AktiengesellschaftInventors: Thorsten Krawinkel, Kerstin Franck, Bernd Lühmann
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Patent number: 6927247Abstract: Organic thiol compounds including mercaptophenylcarboxylates are disclosed which can be utilized to plasticize and/or stabilize halogen-containing polymer compositions, especially poly(vinyl chloride) compositions. Compounds of the present invention are utilized in polymers normally susceptible to deterioration and color change, which typically occurs during processing of the polymer or exposure to certain environments.Type: GrantFiled: June 12, 2003Date of Patent: August 9, 2005Assignee: The College of William and MaryInventors: William Herbert Starnes, Jr., Soungkyoo Kim
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Patent number: 6919392Abstract: The heat and light stability imparted to vinyl halide polymers by metal compounds conventionally employed for this purpose is considerably improved by the presence of a mercapto ester such as 2-mercaptoethyl stearate. The esters can replace a substantial portion of the metal compound with no significant reduction in stability.Type: GrantFiled: April 20, 1992Date of Patent: July 19, 2005Assignee: Arkema Inc.Inventors: Jean-Yves Chenard, Jean-Claude Mendelsohn
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Patent number: 6887926Abstract: A composition, and a method of using the composition, are described which composition comprising: (A) at least one chlorinated polyvinyl chloride or mixture of at least one polyvinyl-chloride and at least one chlorinated polyvinyl-chloride thereof; (B) at least one volatile organic liquid which is a solvent for the polymer of (A); and (C) a stabilizer comprising (i) an organophosphite compound, at least one hindered phenol, at least one of an organotin compound or mixtures thereof, and (ii) at least one metal-containing carbonate salt. The composition and methods of the present invention act to retard the loss of chlorine from the resins of the adhesive compositions and to absorb or otherwise inactive any lost chlorine. The compositions of the invention are useful in a variety of applications including use as adhesives, cements (including solvent cements) glues or pastes for holding together materials by surface attachment, and as sealants which are load-bearing elastic jointing and insulating materials.Type: GrantFiled: November 15, 2002Date of Patent: May 3, 2005Assignee: Oatey Co.Inventors: Amrit K. Parhar, Charles N. Bush
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Patent number: 6852378Abstract: An ink jet-recording sheet for forming recorded images using liquid ink comprises a combination of specific compounds, for instance, 1,2-bis(2-hydroxyethylthio)ethane and a homopolymers or copolymer of diallylamine type compounds such as poly(diallylamine)hydrochloride, poly(diallylamine)sulfate, poly(diallylamine) phosphate or poly(diallylamine)acetate. The ink jet-recording sheet can ensure a high density of printed images, can provide images having high quality, shows only a slight color change and discoloration of printed images even when exposed to ozone gas and is excellent in the long-term shelf life.Type: GrantFiled: September 22, 2003Date of Patent: February 8, 2005Assignee: Oji Paper Co., Ltd.Inventors: Tetsuo Tsuchida, Jun Nishio, Masahiro Morie
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Patent number: 6806304Abstract: The present invention relates to a process for improving the shelf life of a hindered phenol antioxidant comprising the step of intimately mixing the hindered phenol antioxidant with a sulfur-containing peroxide decomposer. The inventors have discovered that mixing the peroxide decomposer with the hindered phenol antioxidant reduces the tendency of hindered phenols to yellow with age. This increases the desirability of the hindered phenol because it will not impart color to polymer systems. The present invention also relates to a composition produced from the process described above, and stabilized compositions and additive packages containing the composition produced from the above-described process.Type: GrantFiled: April 24, 2002Date of Patent: October 19, 2004Assignee: Cytec Technology Corp.Inventors: Brent M. Sanders, Darryl R. Kincaid, Sari-Beth Samuels
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Patent number: 6797757Abstract: The invention relates to articles of manufacture, such as for example, tires and industrial products, which have at least one component comprised of a rubber composition which contains particles of pre-sulfur vulcanized rubber (e.g. ground recycled rubber) and impure tetrathiodipropionic acid, namely a blend comprised primarily of tetrathiodipropionic acid and trithiodipropionic acids of a weight ratio thereof in a range of about 80/20 to about 30/70. Said blend is referred to herein as an S4/S3 blend. The S4/S3 blend may be introduced directly to a rubber composition or may be provided as particles of a composite of said S4/S3 and a particulate support therefor for a purpose of aiding the dispersion of the S4 and S3 within the elastomer host. Representative of such support, or carrier, may be, for example, silica, particularly amorphous precipitated silica, carbon black, clay, starch, calcium carbonate, calcium silicate, titanium dioxide and the like, wherein carbon black is preferred.Type: GrantFiled: May 8, 2002Date of Patent: September 28, 2004Assignee: The Goodyear Tire & Rubber CompanyInventors: Lawson Gibson Wideman, George Frank Balogh
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Patent number: 6777470Abstract: The present invention provides additive packages for polyolefins The additive packages of the present invention comprise at least one non-phenolic antioxidant and a hindered amine light stabilizer. The additive packages may contain other additives as needed, and may optionally include an acid scavenger. Articles made from the resultant polymers, such as radiator surge tanks, exhibit enhanced stain and discoloration resistance upon exposure to high temperatures and harsh chemicals such as those experienced in “under the hood” spaces of modern automobiles.Type: GrantFiled: May 29, 2001Date of Patent: August 17, 2004Assignee: Sunoco, Inc. (R&M)Inventors: Steven David Seip, Sharon Edwards Thompson, Edwin B. Townsend, IV
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Patent number: 6762231Abstract: Aromatic and aliphatic organic thiol compounds are disclosed which can be utilized to plasticize and/or stabilize halogen-containing polymer compositions, especially poly(vinyl chloride) compositions. Compounds of the present invention are utilized in polymers normally susceptible to deterioration and color change, which typically occurs during processing of the polymer or exposure to certain environments.Type: GrantFiled: June 19, 2001Date of Patent: July 13, 2004Assignee: The College of William and MaryInventors: William Herbert Starnes, Jr., Bin Du
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Patent number: 6747081Abstract: Organic thiol compounds including aromatic, aliphatic, and diester ether compounds containing sulfhydryl groups are disclosed which can be utilized to plasticize and/or stabilize halogen-containing polymer compositions, especially poly(vinyl chloride) compositions. Compounds of the present invention are utilized in polymers normally susceptible to deterioration and color change, which typically occurs during processing of the polymer or exposure to certain environments.Type: GrantFiled: June 14, 2002Date of Patent: June 8, 2004Assignee: The College of William and MaryInventor: William Herbert Starnes, Jr.
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Publication number: 20040058178Abstract: Herein is disclosed a modified ethylene vinyl alcohol polymer (EVOH) comprising an oxygen scavenging functional group.Type: ApplicationFiled: June 19, 2003Publication date: March 25, 2004Applicant: Chevron Phillips Chemical Company LP.Inventors: Hu Yang, Ta Yen Ching, Gangfeng Cai
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Publication number: 20040010086Abstract: The present invention provides a TPO blend that exhibits surprisingly excellent low temperature impact resistance. The TPO blend according to the invention includes a polyolefin, a metallocene catalyzed olefinic copolymer plastomer and a lubricant package. The lubricant package includes a mixture of an internal lubricant and an external lubricant. In the preferred embodiment of the invention the polyolefin is polypropylene, the metallocene catalyzed olefinic copolymer is a metallocene catalyzed low density ethylene-octene copolymer, and the lubricant package includes a blend of ethylene bis-stearamide wax as an external lubricant and calcium stearate wax as an internal lubricant. The TPO blend according to the invention also preferably comprises optional antioxidants, UV stabilizers, and colorants.Type: ApplicationFiled: July 12, 2002Publication date: January 15, 2004Inventors: Deenadayalu Chundury, Roy C. Sanford, Matthew R. Powell, Larry N. Trotter
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Patent number: 6660791Abstract: The invention relates to articles of manufacture, such as for example, tires and industrial products, which have at least one component comprised of a rubber composition which contains particles of pre-sulfur vulcanized rubber (e.g. ground recycled rubber) and high purity trithiodipropionic acid, wherein said trithiodipropionic acid is preferably provided as particles of a carbon black composite comprised of carbon black and said high purity trithiodipropionic acid. Said high purity trithiodipropionic acid is comprised of polythiodipropionic acids containing at least 80 weight percent trithiodipropionic acid based upon said polythiodipropionic acids.Type: GrantFiled: June 29, 2001Date of Patent: December 9, 2003Assignee: The Goodyear Tire & Rubber CompanyInventors: Lawson Gibson Wideman, George Frank Balogh
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Patent number: 6652930Abstract: An ink jet-recording sheet for forming recorded images using liquid ink comprises a combination of specific compounds, for instance, 1,2-bis (2-hydroxyethylthio) ethane and a homopolymers or copolymer of diallylamine type compounds such as poly (diallylamine) hydrochloride, poly (diallylamine) sulfate, poly (diallylamine) phosphate or poly (diallylamine) acetate. The ink jet-recording sheet can ensure a high density of printed images, can provide images having high quality, shows only a slight color change and discoloration of printed images even when exposed to ozone gas and is excellent in the long-term shelf life.Type: GrantFiled: October 4, 2001Date of Patent: November 25, 2003Assignee: Oji Paper Co., Ltd.Inventors: Tetsuo Tsuchida, Jun Nishio, Masahiro Morie
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Patent number: 6586509Abstract: A composition for an insulating layer of an electric cable wherein the composition contains an ethylene plastic as the base resin and further contains up to about 5% by weight of additives including antioxidant, and peroxide cross-linking agent. The composition is characterised in that the antioxidant additive includes a compound of the formula (V): R1(—(C+O)O—)k(CH2)1—S—(CH2)m(—OO(C═O)—)nR2 where R1 and R2, which are the same of different, are C7-C23 alkyl, C7-C23 alkenyl, R3—Ar—, Ar—R3—, or AR—, where R3 is C8-C24 alkyl and Ar is c6-c14 aryl; k and n, which are the same of different, are 0 or 1, l and m, which are the same or different, are integers ≧0; with the proviso that the compound is free from phenolic groups; and that the compositions is free from compounds having the formula (VI): R—O—(C═O)—CH2CH2SCH2CH2—(C═O)—O—R where R is a C8-C20 alkyl group.Type: GrantFiled: December 26, 2000Date of Patent: July 1, 2003Assignee: Borealis Technology OyInventors: Jan-Ove Boström, Ruth Dammert, Bill Gustafsson, Annika Smedberg
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Publication number: 20030073771Abstract: The present invention relates to a process for improving the shelf life of a hindered phenol antioxidant comprising the step of intimately mixing the hindered phenol antioxidant with a sulfur-containing peroxide decomposer. The inventors have discovered that mixing the peroxide decomposer with the hindered phenol antioxidant reduces the tendency of hindered phenols to yellow with age. This increases the desirability of the hindered phenol because it will not impart color to polymer systems. The present invention also relates to a composition produced from the process described above, and stabilized compositions and additive packages containing the composition produced from the above-described process.Type: ApplicationFiled: April 24, 2002Publication date: April 17, 2003Inventors: Brent M. Sanders, Darryl R. Kincaid, Sari-Beth Samuels
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Patent number: 6545070Abstract: A method of manufacturing a polyelectrolyte having the step of sulfonating polystyrene resin in a state where the polystyrene resin has been dissolved or dispersed in solvent composed of alicyclic compounds.Type: GrantFiled: August 25, 1999Date of Patent: April 8, 2003Assignee: Sony CorporationInventors: Yasuhito Inagaki, Tsutomu Noguchi, Haruo Watanabe, Miyuki Kuromiya
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Publication number: 20030055141Abstract: Organic thiol compounds including aromatic, aliphatic, and diester ether compounds containing sulfhydryl groups are disclosed which can be utilized to plasticize and/or stabilize halogen-containing polymer compositions, especially poly(vinyl chloride) compositions. Compounds of the present invention are utilized in polymers normally susceptible to deterioration and color change, which typically occurs during processing of the polymer or exposure to certain environments.Type: ApplicationFiled: June 14, 2002Publication date: March 20, 2003Inventor: William Herbert Starnes
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Patent number: 6518344Abstract: The present invention provides a new and improved flame retarded polyolefin composition that displays good retained physical properties upon aging. The composition also exhibits excellent moldability and it may be easily colored. In a preferred embodiment the composition includes a polyolefin, a halogen-containing flame retardant additive, from at least about 1.00% by weight to about 2.5% by weight of a stabilizer package, and from about 0% to about 1.0% by weight of an acid/halogen scavenger. The stabilizer package includes by weight from about 20% to about 80% of a hindered phenolic antioxidant, from about 20% to about 80% of a phosphite containing antioxidant, and from about 0% to about 40% of a thio-ester antioxidant. In addition to displaying excellent color and physical property development and retention characteristics, the composition of the present invention displays an improved UL94 vertical burn rating.Type: GrantFiled: August 18, 2000Date of Patent: February 11, 2003Assignee: Ferro CorporationInventors: Deenadayalu Chundury, Ann Mendel, Howard E. Munro, Roy C. Sanford
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Patent number: 6509398Abstract: The present invention relates to photopolymerizable acrylic varnish compositions.Type: GrantFiled: March 12, 2001Date of Patent: January 21, 2003Assignee: BASF Coatings AGInventors: Maxime M. Allard, Cyrille M. Jaecques
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Publication number: 20030004243Abstract: The invention relates to articles of manufacture, such as for example, tires and industrial products, which have at least one component comprised of a rubber composition which contains particles of pre-sulfur vulcanized rubber (e.g. ground recycled rubber) and impure tetrathiodipropionic acid, namely a blend comprised primarily of tetrathiodipropionic acid and trithiodipropionic acids of a weight ratio thereof in a range of about 80/20 to about 30/70. Said blend is referred to herein as an S4/S3 blend. The S4/S3 blend may be introduced directly to a rubber composition or may be provided as particles of a composite of said S4/S3 and a particulate support therefor for a purpose of aiding the dispersion of the S4 and S3 within the elastomer host. Representative of such support, or carrier, may be, for example, silica, particularly amorphous precipitated silica, carbon black, clay, starch, calcium carbonate, calcium silicate, titanium dioxide and the like, wherein carbon black is preferred.Type: ApplicationFiled: May 8, 2002Publication date: January 2, 2003Inventors: Lawson Gibson Wideman, George Frank Balogh
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Patent number: 6500881Abstract: The invention concerns a flame-proofed polyamide composition to be used in particular for making moulded objects. The composition comprises a flame-proofing system consisting of a melamine derivative and a mineral filler consisting of calcined kaolin and is particularly useful for making moulded electrical objects.Type: GrantFiled: October 10, 2000Date of Patent: December 31, 2002Assignee: Rhodia Engineering Plastics S.r.l.Inventors: Daniele Galli, Franco Speroni
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Patent number: 6455617Abstract: The invention concerns the use, for increasing the durability of moulds made of silicone elastomer crosslinkable by a poly addition or polycondensation reaction, of additive capable of stabilizing the silicone elastomer constituting the mold with respect to materials to be molded, of an additive selected among: (a) antioxidant additives comprising, in their structure additives containing at least one R—Sq—R′ group in which R and R′ are monovalent hydrocarbon groups with at least 3 carbon atoms or a monovalent hydrocarbon group with an ester bond or R and R′ together form a cycle, q being a whole number between 1 and 3 inclusively, (b) additives inhibitors of free radicals capable, in moulding conditions of generating radicals ═N—O; the invention concerns the synergistic combination of (a)+(b), the synergistic combination of (a) and/or (b) with phosphites (c), except for the use of bis(1-octyloxy-2,2,6,6-tetramethyl-4-piperidyl) sebacate as only additive in a silicType: GrantFiled: June 23, 2000Date of Patent: September 24, 2002Assignee: Rhodia ChimieInventors: Michel Gay, Fabienne Howe, Christian Pusineri, Joëlle Viennet
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Patent number: 6362264Abstract: Disclosed is a composition of matter which provides heat and color stability to polyvinyl chloride resins, especially of the flexible type, said composition consists essentially of (A) about 10 to about 40 parts by weight of a zinc carboxylate; (B) about 50 to about 80 parts by weight of an alkyl ester of thiodipropionic acid; and (C) abqut 5 to about 20 parts by weight of a phenolic antioxidant. A PVC resin containing the above composition of matter is also disclosed.Type: GrantFiled: December 20, 1996Date of Patent: March 26, 2002Assignee: CK Witco CorporationInventor: Kook Jin Bae
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Publication number: 20020022144Abstract: Herein is disclosed a modified ethylene vinyl alcohol polymer (EVOH) comprising an oxygen scavenging functional group.Type: ApplicationFiled: May 8, 2001Publication date: February 21, 2002Inventors: Hu Yang, Ta Yen Ching, Gangfeng Cai
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Patent number: 6187848Abstract: A polyester molding composition reinforced with fiber glass or other silica based filler which has color stability at relatively high temperatures and comprises (a) from 40 to 97 weight percent of a polyester resin; (b) from about 3 to about 60 weight percent fibrous glass or silica based filler or mixture; (c) less than about 5 percent by weight additional ingredients which include a combination of stabilizers consisting essentially of an acidic quencher, a thioester and a phosphonite and (d) optionally from 2 to 30 weight percent of a flame retarding composition.Type: GrantFiled: February 20, 1998Date of Patent: February 13, 2001Assignee: General Electric CompanyInventors: Matthew R. Pixton, Robert R. Gallucci, James M. Finan
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Patent number: 6143814Abstract: The invention relates to a fusible stabiliser combination for thermoplastic polymers with the features of the main claim. The invention also relates to a process for the preparation of said combination, and thermoplastic polymers produced by the use thereof.Type: GrantFiled: May 7, 1999Date of Patent: November 7, 2000Assignee: Chemson Polymer-Additive Gesellschaft mbHInventors: Michael Schiller, Hartmut Hensel, Charles Videler, Emil Lattacher, Paul Ebner, Klaus Dolleschal, Karoline Pacher, Claudia Umfahrer
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Patent number: 6015853Abstract: Acetylenic maleates, fumarates and related derivative compounds are new compositions of matter having the formula:R.sub.1 O.sub.2 C--CH.dbd.CH--CO.sub.2 R.sub.2wherein R.sub.1 may be an organic moiety containing at least two carbon atoms triply bonded one to the other as:--C.tbd.C--and R.sub.2 may be hydrogen, an organic moiety, or R.sub.1 ; suitable for use as liquid injection molding inhibitors either singly or in combination with themselves or other liquid injection molding inhibitors when used for the process of liquid injection molding curable compositions enabling an increase in the size of articles manufactured therefrom, which new compositions of matter cure into the polymerizable or curable resins thereby creating new compositions of matter as cured resins from which said articles of manufacture are produced.Type: GrantFiled: November 13, 1997Date of Patent: January 18, 2000Assignee: General Electric CompanyInventors: Philip J. McDermott, Michael J. O'Brien, Edward M. Jeram
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Patent number: 5959056Abstract: A release agent composition for use in an electrophotographic process is disclosed. This composition includes a specifically-defined heat-stable silicone oil-silicone wax copolymer. The copolymer has a melting point such that it is liquid on the hot fuser roll, but solidifies at room temperature on the printed page. A random silicone copolymer, in the form of a paste or pliable caulk, which is useful for sealing leaks in toner cartridges is also disclosed. Finally, the method for preparing these copolymers is disclosed.Type: GrantFiled: September 25, 1997Date of Patent: September 28, 1999Assignee: Lexmark International, Inc.Inventors: Bradley L. Beach, Kathryn E. Dowlen, Terence E. Franey, Douglas C. Hamilton, Gerald G. Leslie, Alexander D. Meade, Jing X. Sun, Peter E. Wallin
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Patent number: 5883162Abstract: Functionalized elastomer/bitumen compositions with a broad plasticity range are produced by contacting a bitumen or bitumen mixture with an elastomer, a functionalizing agent and optionally a peroxide compound at 100.degree.-230.degree. C. under stirring conditions. The funtionalizing agent is a thiolcarboxylic acid having 3 or more carbon atoms, a thiolcarboxylic acid ester and specifically a disulphide having carboxylic groupings or carboxylic esters. The compositions may be used either directly or in diluted form to produce bitumous binders for making road surfacings, coated materials and sealing coatings.Type: GrantFiled: August 20, 1997Date of Patent: March 16, 1999Assignee: Elf Exploration ProductionInventors: Jean-Pascal Planche, Laurent Germanaud, Annie Zins