From Ethylene As Sole Reactant Monomer Patents (Class 524/585)
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Publication number: 20100137493Abstract: A composition used to form thermoplastic films and coatings comprising a thermoplastic polyolefin and a ground natural mineral material wherein a film or coating formed of said composition heat seals at or above 200 degrees F. with a dwell time exceeding approximately 0.5 seconds, has a TAPPI T-525 Whiteness % over 78, a TAPPI T-425 Opacity % over 78, a post corona treated ASTM D-2578 dyne level over 38, a minimum moisture barrier transmission rate of 4.0 g/mil/100 sq. in./24 hrs. at 100 degrees F. at 90% relative humidity, and a minimum oxygen barrier of 350 cc/mil/100 sq. in/24 hrs. at 23 degrees C.Type: ApplicationFiled: December 3, 2009Publication date: June 3, 2010Applicant: SMART PLANET TECHNOLOGIES, INC.Inventor: Christopher R. Tilton
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Publication number: 20100137502Abstract: Provided is a nanotube-polymer composite which can effectively utilize characteristics of a carbon nanotube structure. The composite includes a carbon nanotube structure and a polymer, in which: the carbon nanotube structure has a network structure constructed by mutually cross-linking functional groups bonded to multiple carbon nanotubes through chemical bonding of the functional groups together; and the polymer is filled in the network structure.Type: ApplicationFiled: February 1, 2010Publication date: June 3, 2010Applicant: Fuji Xerox Co., LTD.Inventors: Miho Watanabe, Kentaro Kishi, Chikara Manabe, Kazunori Anazawa, Masaki Hirakata, Taishi Shigematsu, Hiroyuki Watanabe, Takashi Isozaki, Shigeki Ooma, Shinsuke Okada
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Publication number: 20100113637Abstract: The present subject matter relates generally to polymer compositions, and more particularly to irradiated polymer compositions comprising at least one non-phenolic stabilizer. The present polymer compositions comprise an unexpected balance of properties after being subjected to irradiation treatments, including an unexpected combination of a lower melt flow rate ratio (MFRr) and high melt tension after being irradiated, while minimizing negative yellowing effects.Type: ApplicationFiled: June 27, 2008Publication date: May 6, 2010Applicant: Basell Poliolefine Italia s.r.l,Inventors: Jeffrey D. Abata, Ronald F. Becker, Vu A. Dang, Anthony J. De Nicola, JR., Theodore Dziemianowicz
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Publication number: 20100076151Abstract: The invention pertains to a particle comprising a composition containing a matrix and a peroxide or azo radical initiator, wherein the particle is a fiber or fibrid selected from aramid, polyester, polyimide, cellulose, and glass. The invention further relates to particle-elastomers comprising said composition, and skim products, tires, tire treads, and belts comprising these particle-elastomers.Type: ApplicationFiled: July 16, 2009Publication date: March 25, 2010Applicant: TEIJIN ARAMID B.V.Inventors: Rabindra Nath DATTA, Sebastianus Christoffel Josephus PIERIK, Johan P. BAAIJ, Sumana Datta
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Patent number: 7683113Abstract: Novel additive systems for metallocene based filled cable insulation are disclosed. These systems provide excellent protection against thermal degradation, better cure state and reduced dissipation factor after prolonged heat exposure. The additives may contain one or more hindered amine light stabilizers and amine antioxidants.Type: GrantFiled: November 24, 2004Date of Patent: March 23, 2010Assignee: General Cable Technologies CorporationInventor: Mark R. Easter
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Publication number: 20100069538Abstract: An olefin-based composition including a base resin including a copolymer including one or more ?-olefins; one or more light stabilizers and one or more adhesion promoters. An olefin-based composition hereof may be used as an encapsulant in photovoltaic cells.Type: ApplicationFiled: September 17, 2009Publication date: March 18, 2010Applicant: ALLIANCE FOR SUSTAINABLE ENERGY, LLCInventor: Michael D. Kempe
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Publication number: 20100036024Abstract: Polyolefin dispersions, froths, and foams and articles manufactured therefrom are disclosed. Also disclosed is a method for generating a thermoplastic foam from an aqueous dispersion. The aqueous dispersion may include a thermoplastic resin, water, and a stabilizing agent. The method may include adding at least one frothing surfactant to the aqueous dispersion to form a mixture, adding a flame retardant and/or a phase change material, frothing the mixture to create a froth, and removing at least a portion of the water to produce the foam.Type: ApplicationFiled: October 25, 2007Publication date: February 11, 2010Applicant: DOW GLOBAL TECHNOLOGIES INC.Inventor: Bruce Menning
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Publication number: 20100036048Abstract: The present invention relates to (1) a process for producing a water dispersion for ink-jet printing containing colorant-containing polymer particles which includes a step I of obtaining a dispersion of colorant-containing polymer particles; a step II of obtaining a water dispersion of the colorant-containing polymer particles from the dispersion obtained in the step I; a step III of mixing the water dispersion obtained in the step II with an organic solvent (B) to suitably control a relative dielectric constant of a mixed solvent in the resultant dispersion, thereby precipitating the colorant-containing polymer particles; and a step IV of separating precipitates obtained in the step III from the dispersion and re-dispersing the precipitates in a water-based solvent; (2) a water-based ink for ink-jet printing which is excellent in ejection stability and optical density; (3) a process for purifying a water dispersion for ink-jet printing; and (4) a process for producing a dispersion containing groups of fine pType: ApplicationFiled: December 13, 2007Publication date: February 11, 2010Inventors: Ryuma Mizushima, Nobuyuki Takizawa
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Publication number: 20100004373Abstract: Coating compositions for producing hydrophobic or super-hydrophobic surfaces and olephobic or super-olephobic surfaces, and to processes for producing such surfaces. In particular, the present invention relates to hydrophobic or olephobic powder coatings and their use for transforming surfaces of articles into hard-to-wet and self-cleaning surfaces.Type: ApplicationFiled: July 2, 2008Publication date: January 7, 2010Inventors: Jingxu Zhu, Hui Zhang
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Publication number: 20100003458Abstract: Disclosed is a composite roofing shingle. The preferred roofing shingle includes a mixture of a polymer and a filler. The preferred blend includes between about 35-65% polyethylene and 50-70% crushed limestone filler.Type: ApplicationFiled: May 18, 2009Publication date: January 7, 2010Inventor: Randal J. Jolitz
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Publication number: 20090306267Abstract: A rubber mixture with improved abrasion with improved abrasion performance, in particular for pneumatic tires, has the following composition: from 30 to 100 phr of at least one diene rubber; from 0.1 to 10 phr of at least one vulcanization accelerator selected from the group consisting of: thiazole accelerators, mercapto accelerators, sulfenamide accelerators, guanidine accelerators, thiuram accelerators, dithiocarbamate accelerators, amine accelerators, thioureas, and/or other accelerators; and a vulcanization system of sulfur comprising elemental sulfur, sulfur donor and silane between 0.25 and 0.08 moles per 100 parts by weight of the rubber elastometer, whereby the free sulfur contributes in the range of 0 to 70%, the sulfur donor contributes in the range of 5 to 30%, and the silane contributes in the range of 20 to 95%.Type: ApplicationFiled: June 5, 2008Publication date: December 10, 2009Inventors: William Michael York, Carla Recker, Katharina Herzog, Hajo Weinreich, Boris Mergell, Viktoriya Tkachenko, Norbert Mueller, Juergen Wagemann
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Publication number: 20090298978Abstract: The present invention discloses a stabilized composition comprising a) an synthetic polymer subject to oxidative, thermal or light-induced degradation, b) a filler, c) a monomeric or polymeric dispersing or solvating agent free of nitrogen atoms having amphiphilic properties, d) a monomeric or polymeric dispersing or solvating agent having amphiphilic properties containing an amido group or an ethoxylated amino group, and e) a stabilizer. The mixture of components (c), (d) and (e) show a surprising synergistic effect in stabilizing a synthetic polymer which contains a filler.Type: ApplicationFiled: December 7, 2005Publication date: December 3, 2009Inventor: Bruno Rotzinger
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Publication number: 20090292046Abstract: The invention provides methods of producing composite polymers by combining fillers with polymers in the presence of pre-formed high molecular weight polymer. Monomer polymerization can be initiated through the addition of initiators or by reactive chemical groups on the surface of the fibers. The composite materials formed possess superior mechanical properties compared to similar polymer composites made by either purely mechanical mixing or solely polymerization of monomers in the presence of the fillers.Type: ApplicationFiled: June 8, 2009Publication date: November 26, 2009Applicant: COLORADO SCHOOL OF MINESInventors: John R. Dorgan, Birgit Braun
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Publication number: 20090265001Abstract: The present invention relates to methods for making oxidation resistant medical devices that comprise polymeric materials, for example, ultra-high molecular weight polyethylene (UHMWPE). The invention also provides methods of making antioxidant-doped medical implants, for example, doping of medical devices containing cross-linked UHMWPE with vitamin E by diffusion and materials used therein.Type: ApplicationFiled: May 12, 2009Publication date: October 22, 2009Applicants: Massachusetts General Hospital Corporation, Cambridge Polymer Group, Inc.Inventors: Orhun K. Muratoglu, Stephen H. Spiegelberg
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Publication number: 20090247685Abstract: Composites featuring nano-metal particles in a polymer matrix, as well as methods and compositions, for making such composites and uses for such composites (e.g., as masterbatches) are described.Type: ApplicationFiled: March 23, 2006Publication date: October 1, 2009Inventors: Fernando De La Vega, Arkady Garbar, Claudio Rottman
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Patent number: 7576146Abstract: Polymeric colored dispersant having the structure A-(B—X)n, where A is an organic chromophore; B is a covalently bonded linking moiety; X is a branched or linear C50-C200 polymeric covalently linked hydrocarbon, and n is an integer from 1 to 4, and low viscosity colorant dispersions containing same having a relative interfacial tension drop of less than about 1.5.Type: GrantFiled: December 5, 2003Date of Patent: August 18, 2009Assignee: Sun Chemical CorporationInventors: Gregory T. Huber, Tatiana N. Romanova, Russel J. Schwartz, Terence R. Chamberlain
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Patent number: 7560505Abstract: A wax emulsion comprised of polyethylene wax and one or more surfactants in an aqueous medium, wherein the polyethylene wax has a degree of crystallinity of from about 50% to about 80% by weight of the polyethylene wax, is provided. The wax emulsion is made by emulsifying the polyethylene wax, one or more surfactants and an aqueous medium in a vessel at a temperature at or above the melting point of the polyethylene wax to form an emulsified product, and subsequently cooling the emulsified product to ambient temperature at a cooling rate of at least 10° C. per minute. The wax emulsion is preferably incorporated into toner particles prepared by emulsion/aggregation/coalescing.Type: GrantFiled: March 24, 2008Date of Patent: July 14, 2009Assignee: Xerox CorporationInventors: Enno E. Agur, Joseph A. Bartel, Patricia A. Burns, Danielle C. Boils-Boissier, Sheau V. Kao
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Patent number: 7513944Abstract: The present invention provides a black ink composition comprising (1) water, (2) carbon black, and (3) a fine particle emulsion, wherein (A) the content of said carbon black is less than 0.4 wt %, and wherein (B) the solid content of said fine particle emulsion is 20 times or more the content of said carbon black. Also disclosed are an ink set comprising the black ink composition, a recording method using the ink set, and recorded matter obtained by the method.Type: GrantFiled: November 19, 2003Date of Patent: April 7, 2009Assignee: Seiko Epson CorporationInventors: Tsuyoshi Sano, Seishin Yoshida
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Publication number: 20090076216Abstract: A process for fluid phase in-line blending of plasticized polymers is provided.Type: ApplicationFiled: September 9, 2008Publication date: March 19, 2009Inventors: Gabor Kiss, Alan Anthony Galuska, Robert Patrick Reynolds, JR., John W. Chu, Bryan R. Chapman, Patrick Brant, Sudhin Datta
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Publication number: 20090062413Abstract: The use of high aspect fillers in the production of simulated stone, masonry and brick textured products such as cladding, siding, panels, or other building and construction materials. High aspect fillers increase the dimensional stability, rigidity, thermal and sound insulation. The high aspect fillers may be included into a matrix polymer with or without chemical bonding. The disclosed invention is not limited to products in the building or construction industries and may be applied in the manufacture of a wide variety of products in other industries.Type: ApplicationFiled: March 27, 2008Publication date: March 5, 2009Applicant: Crane Building Products LLCInventors: Ashok M. Adur, Kurt Kuriger, Larry R. Fairbanks, Paul Anthony Crist, Paul J. Mollinger, John P. Frechette
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Patent number: 7498369Abstract: An article of manufacture comprises an ultrahigh molecular weight polyethylene (UHMWPE) mixed with a processing oil and a lubricant selected from the group consisting of fatty acid esters, ethoxylated fatty acid esters, glycol esters, PEG esters, glycerol esters, ethoxylated esters, sorbitol esters, ethoxylated sorbitol esters, aromatic ethoxylates, alcohol ethoxylates, mercaptan ethoxylates, modified ethoxylates, amide surfactants, phosphate esters, phosphonate esters, phosphite esters, alkyl sulfates, fatty acid ethers, alkyl ether sulfates, alkylaryl ether sulfates, sulfonates, naphthalene sulfonates, sulfosuccinates, sulfonated esters, sulfonated amides, alkyl ether carboxylates, alkylaryl ether carboxylates, quaternary amines, amino quaternary amines, ethoxylated amines, imidazoline derivatives, betaines, sultaines, aminopropionate, catechol derivatives, saturated fatty acids, unsaturated fatty acids, and combinations thereof. The method for making those articles is also disclosed.Type: GrantFiled: March 2, 2005Date of Patent: March 3, 2009Assignee: Daramic LLCInventors: J. Kevin Whear, Joseph G. Yaritz
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Publication number: 20090048393Abstract: The invention provides an apparatus for introducing additives onto a polymer powder. It also provides a method for introducing an additive into a polyolefin powder, which method comprises the following steps: (a) adding the additive in a solvent to form a solution; and (b) introducing the solution to the polymer powder at a temperature of 60° C. or more, wherein, the solution is introduced to the polymer powder by spraying via a heated spraying means.Type: ApplicationFiled: November 3, 2008Publication date: February 19, 2009Inventors: Louis Fouarge, Leopoid D'Hooghe, Marianne Sillis
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Publication number: 20090044744Abstract: An impact-resistant thermal sensitive material comprising at least one indicator dispersed throughout a heat-sensitive matrix material is provided. An article comprising the impact-resistant thermal sensitive material undergoes a permanent color change when exposed to a pre-determined temperature.Type: ApplicationFiled: January 29, 2008Publication date: February 19, 2009Applicants: LUNA INNOVATIONS INCORPORATED, SOUTHWEST RESEARCH INSTITUTEInventors: Bryan E. Koene, James D. Oxley, Jonas C. Gunter
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Publication number: 20090043028Abstract: An ink-media set, comprising an ink composition and a recording medium, wherein the ink composition comprises a polymer fine particle containing a dye and an inorganic pigment particle, a water-soluble solvent, and water, and has a surface tension of 20 mN/m to 35 mN/m at 25° C., and the recording medium comprises a support and a coating layer on at least one side of the support, and the amount of pure water transferred to the recording medium is no less than 2 ml/m2 and less than 35 ml/m2 at a contact period of 100 ms and the amount of pure water transferred to the recording medium is no less than 3 ml/m2 and less than 40 ml/m2 at a contact period of 400 ms by measurement of a dynamic scanning absorptometer.Type: ApplicationFiled: December 26, 2007Publication date: February 12, 2009Inventors: Akihiko Matsuyama, Tamotsu Aruga, Naoya Morohoshi, Tohru Ohshima, Hiroshi Goto
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Publication number: 20080319126Abstract: Latent heat store based on an organic material which melts at a temperature in the range from 80 to 160° C. and comprises one or more polyolefin waxes which have been prepared via a metallocene-catalyzed reaction. The polyolefin waxes are preferably present as powder, granules or block in the material and are homopolymers of ethylene or of propylene or copolymers of propylene with ethylene or copolymers of ethylene with propylene or with one or more 1-olefins. The material has an enthalpy of fusion in the range from 70 to 280 J/g.Type: ApplicationFiled: June 20, 2008Publication date: December 25, 2008Inventors: Rainer Fell, Hermann Diem, Peter Staniek
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Patent number: 7468410Abstract: The present invention discloses a process for stabilizing polyolefin compositions against the deleterious effects of melt processing, heat aging and exposure to combustion products of natural gas, which process comprises incorporating or applying to a polyolefin an effective stabilizing amount of a tris-(mono-alkyl)phenyl phosphite ester of the formula I, or a mixture of phosphite esters of formula I, where each R is the same or different and is straight or branched chain alkyl of from 1 to 8 carbon atoms, and where said phosphite ester or phosphite ester mixture is in the liquid state at 25° C. and 1 atm of pressure. Also disclosed is a stabilized composition comprising polyolefin and a present phosphite ester or phosphite ester mixture as well as certain mixtures of tris-(mono-alkyl)phenyl phosphite. The present liquid phosphite ester stabilizers are especially compatible with low density polyethylene.Type: GrantFiled: July 17, 2006Date of Patent: December 23, 2008Assignee: Ciba Specialty Chemicals CorporationInventors: Laura F. Chafin, Walid Al-Akhdar, Sai Ping Shum, Stanley J. Padegimas, Roswell Easton King
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Publication number: 20080292833Abstract: An aqueous dispersion including (A) at least one base polymer selected from the group consisting of an ethylene-based co-polymer and a propylene-based co-polymer; (B) at least one polymeric stabilizing agent; and at least one filler; wherein the polymeric stabilizing agent is different from the at least one base polymer and is compatible with the at least one base polymer and the at least one filler, and wherein the dispersion has filler in the range of greater than 0 to about 600 parts per hundred parts of a combined amount of the at least one base polymer and the polymeric stabilizing agent is disclosed.Type: ApplicationFiled: December 4, 2006Publication date: November 27, 2008Inventors: Ronald Wevers, James G. Kennedy, Aaron M. Bujnowski, Brad M. Moncla, Wenbin Liang
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Publication number: 20080293866Abstract: A composite material comprises a particulate material generated as a waste by-product of an industrial process, and a binder for binding the particulate material into a uniform mass. The particulate material and binder are combined in preselected proportions and compressed to form a counterweight having a preselected density and a fixed configuration. A counterweight is manufactured by selecting a first proportion of a particulate material generated as a waste by-product of an industrial process, selecting a second proportion of a binder for binding the particulate material into a uniform mass, combining the first proportion of the particulate material with the second proportion of the binder into a uniform mass, forming the counterweight from the uniform mass, and incorporating the counterweight into a finished product.Type: ApplicationFiled: April 13, 2007Publication date: November 27, 2008Applicant: INNOTECInventors: Lucas B. DeVito, Jonathan R. DeYoung, Mark R. Smith, Nathan L. Wood, Jim R. Cuatt, Robert C. Koning, William K. McAfee, II, Michael L. Lanser
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Publication number: 20080272335Abstract: A method for the production of a pellet or granular form of a polymer performance additive for the effective delivery of the active ingredient into the rubber or plastic manufacturing process. At least one polymer additive in the composition of 10% to 99% is combined with at least one binding additive in the composition of about 1% to 90%.Type: ApplicationFiled: March 15, 2007Publication date: November 6, 2008Inventors: Daniel Y. Shen, Luke Xuebin Yang, XueMing Yuan
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Publication number: 20080262148Abstract: The invention relates to hot melt compositions comprising polyolefin waxes prepared using metallocene catalysts, have a dropping point or ring & ball softening point of between 80 and 165° C., have a melt viscosity, measured at a temperature of 170° C., of between 20 and 40 000 mPa·s, and have a glass transition temperature of not more than ?10° C. and also to their use as hot melt adhesives and as binders for producing roadmarkings.Type: ApplicationFiled: June 11, 2008Publication date: October 23, 2008Inventors: Sebastijan Bach, Hans-Friedrich Herrmann, Gerd Hohner
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Publication number: 20080190551Abstract: The present invention relates to a partial painting method, and more particularly, to a painting method wherein a printing layer is completely transferred onto a base material surface by attaching a hologram transfer film on the base material surface subjected to transparent painting, heat-treating it to transfer a printing portion and then removing a base material film. Since the printing layer is completely transferred onto and impregnated into the transferred surface of the present invention, there occurs no step and the printing layer is not erased due to a solvent. Further, the present invention relates a method of preparing a painting composition using a hologram transfer film and a painting method using the painting composition.Type: ApplicationFiled: May 15, 2006Publication date: August 14, 2008Inventor: Yeon-kil Jeong
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Publication number: 20080171826Abstract: An adhesion promoter for a hot melt adhesive or a pressure sensitive adhesive prepared by admixing a hydrolytic silane compound with an aqueous buffer solution. The adhesive is able to bind at very low surface free energy substrates, such as Xerographic prints contaminated by silicone fuser oil. The hot melt adhesive maintains a substantially stable viscosity at temperature ranging from about 100° C. to about 200° C.Type: ApplicationFiled: January 16, 2007Publication date: July 17, 2008Applicant: XEROX CORPORATIONInventors: Guiqin SONG, Nan-Xing HU, T. Brian MCANENEY, Gordon SISLER
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Publication number: 20080153975Abstract: Vinyl polymers formed by bulk or solution polymerization techniques are combined with nanoparticles to produce aqueous dispersions of nanoparticle/vinyl polymer composites.Type: ApplicationFiled: March 16, 2006Publication date: June 26, 2008Applicant: LUBRIZOL ADVANCED MATERIALS, INC.Inventor: Alexander V. Lubnin
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Publication number: 20080124540Abstract: The present invention includes polymer interlayers that are used in multiple layer glazing panels. Interlayers of the present invention comprise a thermoplastic polymer, a plasticizer, and a fumed silica that has been modified to impart hydrophobic character. Interlayers incorporating such components have improved tensile modulus, moisture resistance, creep performance, anticorrosion effect, glass adhesion, and are well suited to a variety of applications, including, but not limited to, acoustic applications.Type: ApplicationFiled: January 28, 2008Publication date: May 29, 2008Inventor: Ping Yuan
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Publication number: 20080119589Abstract: Color concentrates for thermoplastic biofiber composites are disclosed. The concentrates employ three factors to achieve concentrated delivery of color to the processing machine and excellent and substantially uniform dispersion of color in the processing machine: melt flow of the concentrate exceeding at least 4 g/10 min. using ASTM D-1238; pellet size of the concentrate such that at least 50 pellets weigh less than one gram; and weight percent of the colorant ingredients in the concentrate exceeding at least 30 weight percent.Type: ApplicationFiled: November 2, 2007Publication date: May 22, 2008Applicant: POLYONE CORPORATIONInventors: Thomas M. MAJEWSKI, Peter PRUSAK
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Patent number: 7365117Abstract: An ethylene polymer composition having improved optical properties and masterbatch for producing the composition comprising a predetermined amount of clarifying agent, and a predetermined amount of an amide slip agent.Type: GrantFiled: December 2, 2004Date of Patent: April 29, 2008Assignee: Ampacet CorporationInventors: Don Beuke, Phil Pickett, Prakash Patel, Shawn Lucas, Prashant Trivedi, Nilesh Savargaonkar
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Patent number: 7335697Abstract: The invention provides a polymer composition comprising cross-linked polyethylene having a non-polar biocompatible lipid disposed in at least a portion of the free volume of the polyethylene. The invention further provides methods for making the polymer composition.Type: GrantFiled: December 23, 2004Date of Patent: February 26, 2008Assignee: DePuy Products, Inc.Inventors: Richard S. King, Mark D. Hanes
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Patent number: 7326747Abstract: An improved internal wetting agent is provided for blending with polymeric material, with the formation of apertured films and/or polymeric fibrous webs contemplated. Films and/or nonwoven fabrics of this nature are suited for use in disposable absorbent articles, particularly for the so-called topsheet or facing layer, which contacts the wearer during use. Because polymeric materials from which these types of facing layers are made are typically hydrophobic, the provision of an internal wetting agent facilitates the passage of liquid through the facing layer into an associated absorbent structure.Type: GrantFiled: October 25, 2001Date of Patent: February 5, 2008Assignee: Polymer Group, Inc.Inventors: John Steffen, Brian Smith
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Publication number: 20080004384Abstract: Compositions comprising hexahydrophthalate (HHPA) metal salts may be useful as nucleating agents in polyolefins. Masterbatch compositions containing such salts and silica and/or hydrotalcite are particularly useful in reducing haze and improving properties of manufactured polyolefin articles or film. Such compositions may be dispersed effectively and efficiently into resin during manufacturing operations in the form of a masterbatch, thereby providing excellent polymer crystallization temperatures, improved polymer physical properties, improved dimensional stability, and improved transparency.Type: ApplicationFiled: July 3, 2006Publication date: January 3, 2008Inventors: Weihua Sonya Wolters, Kemper David Lake
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Patent number: 7291669Abstract: Polyolefin compositions comprising a particular hindered phenolic antioxidant selected from the group consisting of tris(3,5-di-tert-butyl-4-hydroxybenzyl)isocyanurate, 1,3,5-tris-(3,5-di -tert-butyl-4-hydroxybenzyl)-2,4,6-trimethylbenzene and the calcium salt of the monoethyl ester of 3,5-di-tert-butyl-4-hydroxybenzylphosphonic acid, an oligomeric sterically hindered amine light stabilizer, a hydroxylamine stabilizer or trialkylamine N-oxide stabilizer, and, optionally, an organic phosphorus stabilizer, are effectively stabilized against degradation upon melt processing, long term heat aging, and exposure to combustion products of natural gas.Type: GrantFiled: March 14, 2005Date of Patent: November 6, 2007Assignee: Ciba Specialty Chemicals CorporationInventors: James H. Botkin, Urs L. Stadler
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Patent number: 7244777Abstract: The present invention provides nucleated polyolefins using shellac based nucleating agents wherein the nucleated polyolefins obtained have improved crystallization temperature (Tc) and smaller spherulitic size and hence improved transparency characteristics.Type: GrantFiled: March 26, 2004Date of Patent: July 17, 2007Assignee: Council of Scientific and Industrial ResearchInventors: Subhash Pundlik Vernekar, Ramesh Chellaswamy, Swaminathan Sivaram
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Patent number: 7238744Abstract: An article of manufacture comprises an ultrahigh molecular weight polyethylene (UHMWPE) mixed with a processing oil and a lubricant selected from the group consisting of fatty acid esters, ethoxylated fatty acid esters, glycol esters, PEG esters, glycerol esters, ethoxylated esters, sorbitol esters, ethoxylated sorbitol esters, aromatic ethoxylates, alcohol ethoxylates, mercaptan ethoxylates, modified ethoxylates, amide surfactants, phosphate esters, phosphonate esters, phosphite esters, alkyl sulfates, fatty acid ethers, alkyl ether sulfates, alkylaryl ether sulfates, sulfonates, naphthalene sulfonates, sulfosuccinates, sulfonated esters, sulfonated amides, alkyl ether carboxylates, alkylaryl ether carboxylates, quaternary amines, amino quaternary amines, ethoxylated amines, imidazoline derivatives, betaines, sultaines, aminopropionate, catechol derivatives, saturated fatty acids, unsaturated fatty acids, and combinations thereof. The method for making those articles is also disclosed.Type: GrantFiled: April 12, 2002Date of Patent: July 3, 2007Assignee: Daramic, Inc.Inventors: Joseph G. Yaritz, J. Kevin Whear
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Patent number: 7049361Abstract: The polyolefin [A] has a weight average molecular chain length of 2850 nm or longer and a density ?1 (g/cm3), the polyolefin wax [B] has a weight average molecular weight of 700–6000 and a density ?2 (g/cm3), the polyolefin and the polyolefin wax are incorporated at [A]/[B]=90/10–50/50 (ratio by weight), and the densities ?1 and ?2 satisfy the following conditions: 0.92??1?0.94, 0.91??2?0.93, ?0.03?(?1??2)?0.03.Type: GrantFiled: March 11, 2002Date of Patent: May 23, 2006Assignee: Sumitomo Chemical Company, LimitedInventors: Atsuhiro Takata, Ryuma Kuroda, Satoshi Hanada, Takeshi Yamada
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Patent number: 7019055Abstract: A polymer of polyvinyl chloride, polyvinylidene chloride, polycarbonate, polyethylene, polypropylene, polyimide, polyester, or polyvinyl acetate contains about 0.005 to about 10 phr of a stabilizer to prevent discoloration due to oxidation, particularly gamma radiation.Type: GrantFiled: January 17, 2001Date of Patent: March 28, 2006Inventor: Qi Wang
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Patent number: 6989423Abstract: Processes are disclosed for oxygen-tailoring polyethylene resin. Polyethylene resin is conveyed through a feed zone, a melt-mixing zone and a melt zone. The resin is contacted with oxygen in an amount of at least 40 parts by weight O2 per million parts by weight resin, and contacted with primary antioxidant downstream of the point or points of oxygen contact. The oxygen-treated resin can be used to make polyethylene film having improved gauge uniformity.Type: GrantFiled: July 2, 2003Date of Patent: January 24, 2006Assignee: ExxonMobil Chemical Patents, Inc.Inventors: James E. Wagner, Jerry M. Johnson, Dale J. Joy, Wesley J. Robertson, Timothy J. Cowell
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Patent number: 6974520Abstract: This invention is directed to formation of a creped nonwoven web. The creped web is formed in a creping process using a polymer emulsion binder formed in an alkylphenol ethoxylate-free surfactant system. The surfactant system comprises a combination of a specific active anionic surfactant (sodium laureth sulfate containing 1 to 12 moles of ethylene oxide) and a specific active nonionic surfactant (a secondary alcohol ethoxylate containing 7 to 30 moles of ethylene oxide or an ethoxylated branched primary alcohol containing 3 to 30 moles of ethylene oxide.Type: GrantFiled: June 15, 2005Date of Patent: December 13, 2005Assignee: Air Products Polymers, L.P.Inventors: Joel Erwin Goldstein, Ronald Joseph Pangrazi
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Patent number: 6908524Abstract: This invention is directed to formation of a creped nonwoven web. The creped web is formed in a creping process using a polymer emulsion binder formed in an alkylphenol ethoxylate-free surfactant system. The surfactant system comprises a combination of a specific active anionic surfactant (sodium laureth sulfate containing 1 to 12 moles of ethylene oxide) and a specific active nonionic surfactant (a secondary alcohol ethoxylate containing 7 to 30 moles of ethylene oxide or an ethoxylated branched primary alcohol containing 3 to 30 moles of ethylene oxide.Type: GrantFiled: January 6, 2004Date of Patent: June 21, 2005Assignee: Air Products Polymers, L.P.Inventors: Joel Erwin Goldstein, Ronald Joseph Pangrazi
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Patent number: 6894109Abstract: Rotational moulded products are prepared by producing a mixture of a polyolefin and optionally at least one additive, extruding this mixture in melt form through orifices in a die, pelletizing the mixture extruded through the orifices to form micropellets having a particle size distribution D(v, 0.5) of 0.1 to 1 mm, and a value of the ratio of D(v, 0.9)-D(v, 0.1) to D(v, 0.5) of no more than 1, drying the micropellets to a residual water content of no more than 1% weight, and if desired packaging the micropellets.Type: GrantFiled: April 1, 2003Date of Patent: May 17, 2005Assignee: Borealis Technology OyInventors: Karin Knudsen, Anne-Marie Fatnes, Magne Due, Olav Hole
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Patent number: 6894093Abstract: The present invention describes plastic materials and food additives that are free or substantially free from endocrine disruptive chemicals. The plastic materials may be used in products which are exposed to individuals in which endocrine disruptive activity is particularly disadvantageous, such as baby bottles, baby toys, food containers, medical containers, animal cages and medical products. The food additives may be used in food products that are ingested by individuals in which endocrine disruptive activity is particularly disadvantageous, such as newborns or the physically infirm. The present invention also describes a series of assays which, when performed in combination, provide a novel method for determining the presence of endocrine disruptive activity.Type: GrantFiled: May 10, 2002Date of Patent: May 17, 2005Inventor: George D. Bittner
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Patent number: 6879861Abstract: A novel polymeric electrically insulating material that includes a linked voltage stabilizing agent. Also provided are methods of making the novel material and articles and devices that incorporate the novel material, particularly implantable medical devices.Type: GrantFiled: December 21, 2000Date of Patent: April 12, 2005Assignee: Medtronic, Inc.Inventors: Michael E. Benz, Mark A. Tapsak, Angela Pratt, Randall V. Sparer