Utilizing Added Agent (e.g., Flux, Plasticizer, Dispersing Agent, Etc.) Patents (Class 264/211)
  • Publication number: 20030102594
    Abstract: Disclosed is a method of manufacturing a functional synthetic cottonwool, comprising the steps of: mixing 0.5˜20% by weight of a mixed powder consisting of 85% by weight of activated charcoal and 15% by weight of a silver-containing inorganic antibacterial carrier, with 80˜99.5% by weight of a base resin selected from polyester, nylon, acryl, polypropylene or silicone; and melt spinning the mixture. The functional synthetic cottonwool has antibacterial and deodorizing effects, radiates far-infrared rays to a human body, and thus promotes the health of a human body when used as a fiberfill of quilts, jackets, etc.
    Type: Application
    Filed: November 8, 2002
    Publication date: June 5, 2003
    Inventor: Jangho Choi
  • Publication number: 20030102593
    Abstract: Provided is a melt-processible perfluorinated polymer composition comprising (a) a melt-processible perfluoropolymer comprising (i) from 80 to 98% by weight of repeating units derived from tetrafluoroethylene, (ii) from 2 to 20% by weight of repeating units derived from hexafluoropropylene, and (iii) from 0 to 5% by weight of repeating units derived from further comonomers other than tetrafluoroethylene and hexafluoropropylene, and wherein the proportion by weight of the repeating units derived from hexafluoropropylene units is greater than that of the repeating units of said further comonomers, and (b) from 0.01 to 5% by weight, based on perfluoropolymer (a), of a high-molecular-weight perfluorinated polymer with a melting point at least 20° C. above that of the fluoropolymer (a). Also provided are processes for making and using such melt-processable compositions.
    Type: Application
    Filed: December 10, 2001
    Publication date: June 5, 2003
    Inventors: Ralph Kaulbach, Friedrich Kloos
  • Patent number: 6572803
    Abstract: A method of infusing liquid dyestuff into synthetic yarns at the point of fiber production, comprising the steps of providing a molten polymer, at least one non-molten liquid dye, and a spin pack assembly adapted for receiving and mixing the molten polymer and the non-molten liquid dye therein to form a colored molten polymer composition. The spin pack assembly includes a screen for filtering the molten polymer therethrough, and a spinneret adapted for receiving and extruding the molten polymer composition therethrough to form a plurality of colored fibers adapted for being formed into the synthetic yarns.
    Type: Grant
    Filed: September 21, 2000
    Date of Patent: June 3, 2003
    Assignee: Burke Mills, Inc.
    Inventors: Michael Scott Coe, Charles P. McCamy, Humayun N. Shaikh
  • Publication number: 20030085486
    Abstract: The present invention provides a process for manufacturing an molded article that involves the occurrence of reduced number of gels and less corrosion of the molding equipment in high-temperature molding, particularly extrusion molding onto such substrate as paper; an extruded article; and an olefin polymer composition suitable therefor.
    Type: Application
    Filed: November 15, 2002
    Publication date: May 8, 2003
    Inventors: Tetsuji Kasai, Mamoru Takahashi, Takashi Nakagawa, Satoshi Akiyama
  • Publication number: 20030080459
    Abstract: A release-controlled pipe and a related manufacturing method comprise several main steps, which are mixing a formulation, first hot melt extrusion and cooling, grinding into pieces, second hot melt extrusion, molding and cooling. The present invention includes the steps of first mixing elastomer pellets and a binder, then pouring the formulation into a melt extruder for extruding and shaping a rod-like extrudate. Then the rod-like extrudate is ground into pieces and placed into a water-filled container and another dry container. The mixture of dry ground pellets, wet ground pellets including water, and a small amount of lubricant is poured into a melt extruder for extruding, and a release-controlled pipe is shaped via a pipe die head and gathered by a winder after cooling.
    Type: Application
    Filed: October 29, 2001
    Publication date: May 1, 2003
    Inventor: Shun-fua Su
  • Publication number: 20030080457
    Abstract: The present invention provides the use of a mineral oil in a fluoroelastomer composition comprising a fluoroelastomer to improve the flow of said composition during processing to form an article therefrom and/or to improve the release from a mold of a vulcanized article produced from said fluoroelastomer composition. Further provide are a fluoroelastomer composition that includes a mineral oil, a method of making an article therewith and a method of preparing the fluoroelastomer composition.
    Type: Application
    Filed: November 13, 2001
    Publication date: May 1, 2003
    Inventor: Steven G. Corveleyn
  • Patent number: 6555038
    Abstract: The invention relates to a method for producing aqueous liquor dyeable modified polypropylene threads. The inventive method is characterized in that a CR polypropylene suitable for fiber formation is mixed with a reaction partner which can react with CR polypropylene and the mixture obtained is processed in an extrusion spinning facility to form a thread. Suitable reaction partners are difunctional carboxylic acids, corresponding carboxylic acid derivatives or master batches made of polypropylene and difunctional carboxylic acids or corresponding carboxylic acid derivatives. The polypropylene threads obtained can be knitted to form textile fabrics. The polypropylene threads and textile fabrics can be dyed with the usual coloring agents according to a standard aqueous liquor extrusion process.
    Type: Grant
    Filed: June 12, 2000
    Date of Patent: April 29, 2003
    Assignee: Deutsche Institute fur Textil - und Faserforschung Stuttgart
    Inventors: Sabine Egeler, Rainer Gutmann, Winfried Schuler, Karl-Heinrich Wiese
  • Patent number: 6552123
    Abstract: Provided are melt-spun fibers comprising, as at least one component, a water-soluble polyvinyl alcohol, and a method for producing fibrous structures comprising the fibers. The thermoplastic polyvinyl alcohol fibers comprise, as at least one component, a water-soluble polyvinyl alcohol containing from 0.1 to 25 mol % of C1-4 &agr;-olefin units and/or vinyl ether units, having a molar fraction, based on vinyl alcohol units, of a hydroxyl group of vinyl alcohol unit located at the center of 3 successive vinyl alcohol unit chain in terms of triad expression of being from 70 to 99.9 mol %, having a carboxylic acid and lactone ring content of from 0.02 to 0.15 mol %, and having a melting point falling between 160° C. and 230° C., and contain from 0.0003 to 1 part by weight, relative to 100 parts by weight of the polyvinyl alcohol therein and in terms of sodium ion, of an alkali metal ion.
    Type: Grant
    Filed: December 16, 1999
    Date of Patent: April 22, 2003
    Assignee: Kuraray Co., Ltd.
    Inventors: Takashi Katayama, Kazuhiko Tanaka, Naoki Fujiwara, Tomoaki Kimura, Akihiro Hokimoto, Nobuhiro Koga, Hitoshi Nakatsuka, Yoshimi Umemura, Hiroshi Kanehira, Masao Kawamoto, Junyo Nakagawa
  • Patent number: 6548574
    Abstract: An untreated filler and a high viscosity silicone polymer premix is charged into a compounding apparatus. Treating agent and additional silicone polymer are added to the premix and the premix, treating agent and additional silicone polymer are compounded to produce a heat vulcanizable filled silicone composition.
    Type: Grant
    Filed: December 21, 1999
    Date of Patent: April 15, 2003
    Assignee: General Electric Company
    Inventors: Devesh Mathur, Alan L. Tate
  • Patent number: 6544456
    Abstract: A method for the production of melt-spun fibers comprising polyethylene terephthalate as a fiber-forming polymer, through polycondensation or melting of the fiber-forming polymer forming a melt and subsequently melt spinning, comprises mixing 0.1-4 wt %, relative to the fiber-forming polymer, of polymethyl methacrylate with the fiber-forming polymer before the melt spinning and dispersing the polymethyl methacrylate in the fiber-forming polymer to form unoriented melt fibers. During the melt spinning, the spinning speed of the fibers is set at up to 8000 m/min, whereby through the inclusion in the unoriented melt fibers, extruded from a sincerest, rod-shaped inclusions of the polymethyl methacrylate with a lateral particle size of less than 800 nm are obtained.
    Type: Grant
    Filed: December 15, 2000
    Date of Patent: April 8, 2003
    Assignee: Inventa-Fischer AG
    Inventors: Raimund Schwarz, Werner Stibal, Gustav Schütze
  • Patent number: 6544464
    Abstract: A method capable of molding by a simple procedure such a polymer as a polysuccinimide based (co)polymer or a protein whose glass transition temperature is very close to the decomposition temperature is provided. The method for the molding of a polymer contemplated by this invention comprises heating and melting a polymer whose glass transition temperature is very close to the decomposition temperature in the presence of a solvent having a low boiling point and a high dielectric constant ratio and then molding the resultant molten product.
    Type: Grant
    Filed: November 24, 1999
    Date of Patent: April 8, 2003
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Shinzo Yasuda, Masaharu Mukouyama
  • Patent number: 6544447
    Abstract: This invention generally relates to the formulation of thermoplastic pellets from a combination of raw sludge material from a paper mill with thermoplastic material from post industrial or consumer sources. Initially, waste raw sludge material is transported via a conveyor to a dryer for removal of excess water. The waste thermoplastic material is preferably shredded into a desired size and transported to a densifier. The dried sludge is added to the densifier where the shredded thermoplastic material and dried sludge is suitably mixed with additive agents. The mixed sludge and shredded thermoplastic material is then transported to a grinder for grinding. The ground material is then transported to a hopper for introduction into an extruder. The ground combined material is then subjected to an extrusion process for the formulation of thermoplastic pellets having supplemental fibers to enhance the properties for use as starting material in an injection molding process.
    Type: Grant
    Filed: March 29, 2000
    Date of Patent: April 8, 2003
    Inventor: Thomas C. Faerber
  • Patent number: 6544451
    Abstract: A process is disclosed for direct extrusion of an acrylic polymer highly filled with aluminum trihydroxide wherein a lubricant is introduced to permit the composition to be extruded at a temperature below about 200° C.
    Type: Grant
    Filed: June 26, 2000
    Date of Patent: April 8, 2003
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Barry J. Heitner, Clyde Spencer Hutchins
  • Publication number: 20030064195
    Abstract: The invention concerns a unilaterally mat, sealable, UV-stabilized and flame-resistant, sealable, co-extruded, biaxially oriented polyester film comprising at least one base layer (B) and a sealable top coating (A) applied to both sides of said base layer, in addition to a mat covering (C). The film also contains at least one UV stabilizer as a light stabilizer. The invention further concerns a method for the production of said film and the use thereof.
    Type: Application
    Filed: July 26, 2002
    Publication date: April 3, 2003
    Inventors: Ursula Murschall, Ulrich Kern, Guenther Crass, Herbert Peiffer, Hans Mahl
  • Patent number: 6533975
    Abstract: This invention provides processes for preparing fiber or film comprising a polyurethane and layers delaminated from a lamellar clay, said layers being dispersed in said polyurethane. Fiber and film produced by the processes of the present invention exhibit reduced tack and an increased ability to affix at least one dye.
    Type: Grant
    Filed: September 20, 2000
    Date of Patent: March 18, 2003
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Leonard Edward Raymond Kosinski, Govindasamy Paramasivam Rajendran, Robert Rex Reitz
  • Publication number: 20030049295
    Abstract: The present invention relates to processes for preparing an antimicrobial plastic body, said processes comprising molding a precursor and being characterized in that prior to molding at least one component of the precursor is treated with a metal colloid.
    Type: Application
    Filed: January 30, 2002
    Publication date: March 13, 2003
    Inventors: J. Peter Guggenbichler, Andreas Hirsch
  • Publication number: 20030049989
    Abstract: The present invention is directed to the combined use of first and second fatty acid amides to improve the softness of a thermoplastic polymer construct. A combination of fatty acid amides is provided in the blend ratio of about 10 to 90 percent by weight of a first fatty acid amide and 90 to 10 percent by weight of a second fatty acid amide. The first and second fatty acid amides are compounded into a thermoplastic polymer carrier resin and, preferentially, produced as concentrate pellets containing 0.5 to 75 percent by weight total fatty acid amide loading. The concentrate pellets are introduced into a thermoplastic polymer base, to form a thermoplastic resin, at a letdown level in the range of about 1 to 15 percent, with the range of 2 to 10 percent being preferred, and the range of 3 to 6 percent being most preferred.
    Type: Application
    Filed: August 7, 2002
    Publication date: March 13, 2003
    Inventors: Richard Ferencz, Robert Dale, Nick Carter
  • Publication number: 20030034586
    Abstract: A process for producing a ceramic structure, which comprises adding an organic assistant to a ceramic raw material mixture, kneading them to obtain a readily formable bullet, and extruding the readily formable bullet to obtain a ceramic structure, wherein the organic assistant is composed mainly of an organic compound giving a haze of 10 to 90% when made into a 5 weight % aqueous dispersion. According to the process, the load to the extruder is small and a ceramic structure can be produced at high shapability and a high productivity.
    Type: Application
    Filed: August 14, 2002
    Publication date: February 20, 2003
    Inventors: Kyoko Makino, Yasushi Noguchi
  • Patent number: 6521155
    Abstract: A process for manufacturing a plastic pipe from recycled crushed PET starting material includes kneading the starting material under the influence of heat while removing moisture therefrom so as to prevent hydrolysis of the PET material and thereafter feeding the mixture to an extruder and passing the extruded mixture to a corrugator while cooling at a temperature gradient of between −10° C./min and −50°/min so as to form a crystalline plastic pipe.
    Type: Grant
    Filed: May 25, 2000
    Date of Patent: February 18, 2003
    Inventor: Horst Wunsch
  • Publication number: 20030030176
    Abstract: Granulated papermaking sludge is combined with plastic to form composite materials that may be shaped into structural and non-structural articles.
    Type: Application
    Filed: July 13, 2001
    Publication date: February 13, 2003
    Inventors: Yiannis A. Monovoukas, Steven J. Anderson, David Leeman, Anatole A. Klyosov, George P. Philippidis
  • Patent number: 6517759
    Abstract: A fragrance-containing and fragrance-emitting polymeric fiber which optionally contains an antimicrobial agent and a coloring agent is disclosed. A process for producing the fragrance-containing and fragrance-emitting polymeric fiber is also disclosed.
    Type: Grant
    Filed: October 10, 2000
    Date of Patent: February 11, 2003
    Assignee: International Flavors & Fragrances Inc.
    Inventors: Dionisio Ferenc, Elena Susana Novas, Leonardo Oscar D'Ascanio
  • Publication number: 20030020190
    Abstract: A process and apparatus for the production of polyacrylontrile (PAN) polymer fibers from a polyacrylonitrile polymer, wherein a polyacrylonitrile polymer that comprises 90 weight percent or more polyacrylonitrile, optionally mixed with from about 30 to about 50 weight percent, based on the weight of the polymer, of a fugitive plasticizer, is heated, provided to an extruder in liquid form, extruded to form polyacrylonitrile fibers, and the fibers, immediately after the extrusion, are cooled, preferably in an air-cooled manifold, to a temperature of from about 110 to about 135° C.
    Type: Application
    Filed: July 12, 2002
    Publication date: January 30, 2003
    Applicant: John P. Fouser L.L.C.
    Inventor: John P. Fouser
  • Patent number: 6511624
    Abstract: Disclosed is a process for preparing a high modulus and a low shrinkage polyester multifilament yarn of 1000 deniers or more at a spinning rate of 2,000 m/min or more, comprising the steps of: melt-extruding polyester chips having an intrinsic viscosity of 0.90 to 1.2 through a spinning nozzle and passing polyester chips through a heating zone; quenching melt-extruded yarns with the use of a radial in-to-out quenching method to solidify them; and providing spin finishes to solidified yarns before winding. The industrial polyester multifilament yarns have a coefficient of variation of 4.0% or less in a cross sectional diameter of filaments, and excellent uniformity of fineness. Treated cords formed from the industrial polyester multifilament yarns with high modulus and low shrinkage have an excellent dimensional stability and tenacity, and can be used as reinforcements of rubber goods such as tires.
    Type: Grant
    Filed: January 2, 2002
    Date of Patent: January 28, 2003
    Assignee: Hyosung Corporation
    Inventors: Eun-lai Cho, Duk-ho Oh, Song-joo Choi
  • Publication number: 20030018099
    Abstract: By molding a biodegradable plastic material which is treated with a compound reactive to the active hydrogen in the biodegradable plastic material, a biodegradable plastic material and molding having long-term reliability are obtained.
    Type: Application
    Filed: July 8, 2002
    Publication date: January 23, 2003
    Inventors: Yuko Fujihira, Tsutomu Noguchi, Hiroyuki Mori, Shinichiro Yamada
  • Publication number: 20030008400
    Abstract: There is disclosed a process for melting a luminescent oxygen sensitive compound into extruded polymer films. Specifically, there is disclosed a process for thermal melting of oxygen-sensitive indicators into common packaging polymers used for commercial packaging of products, such as foods. The oxygen-sensitive indicators can be used for real-time monitoring of oxygen in commercial packaging operations.
    Type: Application
    Filed: June 25, 2001
    Publication date: January 9, 2003
    Inventors: David L. Putnam, Todd Hubbard
  • Patent number: 6503432
    Abstract: Multilayer articles, particularly multilayer articles having electrical or ionic conductivity, are made using an improved melt extrusion process. The process includes a combination step in which a macroscopically homogeneous mass is formed prior to introduction into an extruder. The multilayer article may include an electrode layer and a separator layer that are extruded onto a metal current collector. Such structures are particularly useful in lithium-ion batteries.
    Type: Grant
    Filed: March 2, 2000
    Date of Patent: January 7, 2003
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Kelly D. Barton, Donald G. Gray, Guy E. Rockwell
  • Patent number: 6503431
    Abstract: The present invention provides a process for manufacturing an molded article that involves the occurrence of reduced number of gels and less corrosion of the molding equipment in high-temperature molding, particularly extrusion molding onto such substrate as paper; an extruded article; and an olefin polymer composition suitable therefor. The olefin polymer composition comprises an olefin polymer containing 5 to 200 ppm of aluminum, as aluminum atom, 0 to not more than 1,000 ppm of a phenolic stabilizer and 50 to 2,000 ppm of a phosphoric stabilizer.
    Type: Grant
    Filed: June 30, 1999
    Date of Patent: January 7, 2003
    Assignee: Mitsui Chemicals Inc
    Inventors: Tetsuji Kasai, Mamoru Takahashi, Takashi Nakagawa, Satoshi Akiyama
  • Publication number: 20030001308
    Abstract: A honeycomb structure molding apparatus 1 having a spinneret 4 provided with a back pore part 3 for introducing a molding material and a slit part 2 for extruding the molding material, and a press plate 5 for fixing the spinneret 4, in which the spinneret 4 comprises an inner side part 11 and an outer peripheral part 12, the inner side part 11 is protruded to the downstream side to form a level difference part 15 between the inner side part 11 and the outer peripheral part 15, the press plate 5 is opened opposing the inner side part 12 of the spinneret 4 and presses the downstream side of the outer peripheral part 12 of the spinneret 4 through a gap part 7, and there is provided a gap adjusting means 130 capable of changing width of the gap of the gap part 7.
    Type: Application
    Filed: March 22, 2002
    Publication date: January 2, 2003
    Applicant: NGK Insulators, Ltd.
    Inventors: Yukinari Shibagaki, Takeyuki Isii, Yoshimasa Kondo
  • Publication number: 20020195739
    Abstract: Methods of manufacturing a sealing or an anti-extrusion component for use in a downhole tools is described. The method includes formation of the component from a composition that contains a polyetherketoneketone or a derivative of a polyetherketoneketone. The resultant component is adapted for use in a downhole tool. The invention is also a sealing or an anti-extrusion component for use in a downhole tool. The component contains a composition, which itself is composed of a polyetherketoneketone or a derivative of a polyetherketoneketone, and the component is adapted for use in a downhole tool.
    Type: Application
    Filed: March 29, 2002
    Publication date: December 26, 2002
    Applicant: Greene, Tweed of Delaware, Inc.
    Inventors: Daniel P. Bagley, Merle L. Bell
  • Publication number: 20020190425
    Abstract: A process is described for extrusion and/or injection molding of plastics of acrylonitrile-butadiene-styrene (ABS) type or of acrylonitrile-styrene-acrylate (ASA) type, which comprises using a magnesium oxide having a citric acid number of <1500 sec, preferably <800 sec, during the extrusion and/or injection molding, as additive. This process allows the formation of mold deposit during the processing of the plastics mentioned to be reduced to a minimum. The quality of the resultant moldings is increased. There is markedly less need for procedures to clean the processing machinery used.
    Type: Application
    Filed: June 24, 2002
    Publication date: December 19, 2002
    Inventors: Peter Ittermann, Rainer Theysohn
  • Publication number: 20020192560
    Abstract: A separator for use in zinc/bromine secondary batteries comprising a polyethylene having an overall viscosity average molecular weight of not less than 350,000 and not more than 2,000,000 containing not less than 10 wt. % and not more than 80 wt. % of a polyethylene having a weight average molecular weight of 1,000,000 or more and fine particulate silica, wherein the ratio by weight of polyethylene/fine particulate silica is more than 1 and less than 1.5, and the ratio of the number of silicon atoms (Si) to the number of carbon atoms (C), Si/C, exposed on the surfaces of said separator excluding cross-sectioned surfaces thereof is not less than 0.01 and less than 0.2 as determined by X-ray photoelectron spectroscopy (XPS).
    Type: Application
    Filed: April 13, 2001
    Publication date: December 19, 2002
    Inventors: Yoshifumi Nishimura, Yoko Saito
  • Publication number: 20020190424
    Abstract: A condrapable hydrophobic nonwoven web of continuous fibers includes a hydrophobic nonwoven web of continuous fibers, and a fiber surface-modifying agent on the web to form therewith a condrapable hydrophobic web. The agent is essentially an amino-modified polydimethylsiloxane. The condrapable hydrophobic web is characterized by a substantial hydrophobicity, as measured by a strike-through of over 180 seconds and by a substantial increase in condrapability, as measured by a Handle-O-Meter decrease of at least 15% average for MD and CD.
    Type: Application
    Filed: March 23, 2001
    Publication date: December 19, 2002
    Inventors: Michael Kauschke, Mordechai Turi, Horst Ring, Sabine Borst
  • Patent number: 6495075
    Abstract: The invention pertains to a process for preparing thermoplastic fibres by melt-spinning an alternating co-polymer composed of alkenes and carbon monoxide in which the polymer is heated to a temperature of at least TNF+5° C.
    Type: Grant
    Filed: July 28, 2000
    Date of Patent: December 17, 2002
    Assignee: Acordis Industrial Fibers BV
    Inventors: Hendrik Middeljans, Jannes Veurink, Johannes A. Juijn
  • Patent number: 6495079
    Abstract: The use of a sulfonated polyester ionomer resin in a colored, drawn polyamide or polyester fiber results in improved color strength and appearance. Sodium sulfo isophthalate polybutylene terephthalate copolymers when melt blended with synthetic polyamides or polyesters are shown to enhance color strength in drawn fibers. In addition the sulfonated polyesters reduce color strength variation in colored fibers made with different batches of colorant. Water insoluble sulfonated polyester ionomers are preferred.
    Type: Grant
    Filed: June 28, 2000
    Date of Patent: December 17, 2002
    Assignees: Prisma Fibers, Inc., General Electric Company
    Inventors: Robert R. Gallucci, Matthew B. Studholme, Milton Keith Roark
  • Publication number: 20020180098
    Abstract: A molded object is manufactured by a process, comprising:
    Type: Application
    Filed: April 8, 2002
    Publication date: December 5, 2002
    Applicant: DEGUSSA AG
    Inventors: Hans-Guenter Lohkaemper, Siegbert Stober, Ralf Schueler
  • Patent number: 6488876
    Abstract: The invention relates to a composition intended to be admixed to a moldable solution of cellulose in an aqueous tertiary amine oxide, which composition consists of solid particles, a mixture of a tertiary amine oxide and water, in which the solid particles are dispersed, and at least a further substance, with the proviso that the solid particles and said at least further substance are different from cellulose and that the content of water is such that no cellulose will precipitate when admixing the composition to the moldable cellulose solution. The composition according to the invention is storage stable to a high degree and suitable for introducing additives into the moldable cellulose solution.
    Type: Grant
    Filed: February 3, 1999
    Date of Patent: December 3, 2002
    Assignee: Lenzing Aktiengesellschaft
    Inventor: Harmut Rüf
  • Publication number: 20020171164
    Abstract: A thermosetting foam, preferably a polyurethane foam is prepare by mixing all the components in one or more extruders and directing the chemical streams to a mixing head where the catalyst is added. Thus, the reaction can be controlled in a facile manner, whereby clogging of the extrusion head is avoided.
    Type: Application
    Filed: May 15, 2001
    Publication date: November 21, 2002
    Inventors: Steve Halterbaum, David G. Wernsing
  • Publication number: 20020167112
    Abstract: Acrylic based multipolymer compositions having enhanced optical properties, comparable to impact modified PM resins, good sub-zero temperature impact strength similar to that of the Acrylic Based Multipolymer Compounds and improved weatherability, are disclosed. These compositions comprise a blend of an acrylic based multipolymer, comprising one or more of acrylonitrile, butyl acrylate, ethyl acrylate, methyl acrylate, methyl methacrylate, and styrene; a methylmethacrylate-butadiene-styrene (MBS) copolymer modifier polymerized by a free radical process; UV stabilizers, including benzotriazole derivatives, triazine derivatives, and hindered amine light stabilizers, as single components or combinations thereof; and one or more antioxidants, dyes and plasticizing flow enhancers. Both the compositions and their method of preparation are disclosed.
    Type: Application
    Filed: February 6, 2002
    Publication date: November 14, 2002
    Inventors: Peter D. Colburn, Dimo K. Dimov, Edward Capriles
  • Publication number: 20020167103
    Abstract: The invention relates to a method for introducing additives into flowing or fluidized media. The spatially predetermined position of the additives in the flowing material, also called fluid bed, is obtained by controlling the pulsating injection, The introduction and exact dosing of additives, that is hardeners, dyes, gas producers and softener for instance, into a liquid plastic stream or metal stream (10) for instance or the fluid bed of bulk material, such as powder, granules and pellets, is carried out by means of an injector. The invention is used in melting units, in hot channel systems, in tools, componens of tools and injection moulding machines, extruder-, injection moulding-, pelleting-, burner- and injection arrangements.
    Type: Application
    Filed: September 8, 2001
    Publication date: November 14, 2002
    Inventor: Georg Michael Ickinger
  • Patent number: 6479001
    Abstract: A thermoplastic composition that includes an unreacted mixture of a polyethylene oxide polymer, a polyolefin polymer, an aliphatic polyester polymer, and, optionally, a compatibilizer for the polymers. One embodiment of such a thermoplastic composition is a mixture of polyethylene oxide polymer, poly(lactic acid) polymer, and polyethylene polymer. The thermoplastic composition is capable of being extruded into fibers that may be formed into nonwoven structures that may be used in a disposable absorbent product intended for the absorption of fluids such as body fluids.
    Type: Grant
    Filed: June 12, 2000
    Date of Patent: November 12, 2002
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Fu-Jya Tsai, Brian T. Etzel
  • Patent number: 6475418
    Abstract: A disposable article including a biodegradable nonwoven material having improved fluid management properties. The nonwoven material may be produced using thermoplastic compositions which comprise an unreacted mixture of a poly(lactic acid) polymer; a polybutylene succinate polymer or a polybutylene succinate adipate polymer, or a mixture of such polymers; and a wetting agent. The thermoplastic composition exhibits substantial biodegradable properties yet is easily processed. The biodegradable nonwoven materials may be used in a disposable absorbent product intended for the absorption of fluids such as body fluids.
    Type: Grant
    Filed: June 29, 2000
    Date of Patent: November 5, 2002
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Fu-Jya Daniel Tsai, Brigitte C. Wertheim
  • Publication number: 20020149132
    Abstract: The polyolefin [A] has a weight average molecular chain length of 2850 nm or longer and a density &rgr;1 (g/cm3), the polyolefin wax [B] has a weight average molecular weight of 700-6000 and a density &rgr;2 (g/cm3), the polyolefin and the polyolefin wax are incorporated at [A]/[B]=90/10-50/50 (ratio by weight), and the densities &rgr;1 and &rgr;2 satisfy the following conditions: 0.92.≦&rgr;1≦0.94, 0.91≦&rgr;2≦0.93, −0.03≦(&rgr;1-&rgr;2)≦0.03.
    Type: Application
    Filed: March 11, 2002
    Publication date: October 17, 2002
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Atsuhiro Takata, Ryuma Kuroda, Satoshi Hanada, Takeshi Yamada
  • Publication number: 20020147244
    Abstract: Molding, including injection molding, of crystalline or semicrystalline polymeric material is described. Microcellular polymeric material is preferred. The invention involves use of a viscosity-reducing additive in molding that results in relatively better crystallinity at relatively lower mold temperatures, and lower aging time.
    Type: Application
    Filed: March 7, 2001
    Publication date: October 10, 2002
    Inventors: Levi A. Kishbaugh, Roland Y. Kim, Kevin J. Levesque
  • Publication number: 20020135086
    Abstract: A process for forming particulate materials and binders into articles that are reusable after comminution, wherein the particulate materials are treated with a binder composition containing
    Type: Application
    Filed: January 25, 2002
    Publication date: September 26, 2002
    Inventors: Abdulmajid Hashemzadeh, Klaus Kohlhammer, Konrad Alfons Wierer, Herbert Probstl
  • Publication number: 20020135098
    Abstract: The present invention provides a method for producing an ethylene-vinyl alcohol copolymer resin composition, said method comprising: a) introducing into an extruder an ethylene-vinyl alcohol copolymer resin having a water content of at least 0.5 weight % and an additional component; b) kneading the resin and the additional component whereby to form an ethylene-vinyl alcohol copolymer resin composition; and c) discharging said resin composition from the extruder; wherein said method further comprises feeding water in a liquid state to the extruder and/or removing water in a liquid state from the extruder. Thereby, strand-breakage or cutting errors are suppressed and thus, molded products such as pellets can be provided with a stable shape.
    Type: Application
    Filed: January 22, 2002
    Publication date: September 26, 2002
    Applicant: KURARAY CO. LTD.
    Inventors: Hiroshi Kawai, Masao Hikasa, Takaharu Kawahara, Toshio Tuboi
  • Patent number: 6454983
    Abstract: A process is provided for single screw extrusion of a composition or masterbatch comprising a polymer and an antistatic agent wherein the feed zone temperature is maintained below 385° F. in order to allow processability of the composition.
    Type: Grant
    Filed: December 3, 1999
    Date of Patent: September 24, 2002
    Assignee: Eastman Chemical Company
    Inventors: Douglas Stephens McWilliams, Harold Eugene Dobbs, Scott Arnold Hanson, Emily Tedrow Bell
  • Patent number: 6454975
    Abstract: Bulk yarns having improved elasticity and recovery and methods for their manufacture are described. A first embodiment of the invention involves providing a solution-dyed multifilament yarn of polybutylene terephthalate (PBT) and a multifilament yarn of a second thermoplastic polymer to an air jet texturizer such that the PBT component forms a core and the other yarn forms a plurality of loops and coils extending outwardly from the core. In addition to a high degree of elasticity and recovery, the composite yarn also has a low amount of shrinkage, which enables the yarns to be used in the production of woven fabrics without significant losses in fabric yield. Another embodiment of the invention involves false twisting a multifilament PBT yarn and a second multifilament yarn as individual threadlines to impart crimp thereto, then entangling the two components together using an air interlacing jet, to produce a bulk yarn having high elasticity and recovery.
    Type: Grant
    Filed: May 31, 2000
    Date of Patent: September 24, 2002
    Assignee: O'Mara Incorporated
    Inventors: J. Joseph O'Mara, Jr., Anthony Nesbitt Dotson
  • Patent number: 6455154
    Abstract: A coating liquid for forming porous silica coating, comprising a product of reaction between a short fiber silica and a hydrolyzate of an alkoxysilane of the formula XnSi(OR)4-n or a halogenated silane of the formula XnSiX′4-n (in the formula, X represents a hydrogen atom, a fluorine atom, an alkyl group having 1 to 8 carbon atoms, an aryl group or a vinyl group; R represents a hydrogen atom, an alkyl group having 1 to 8 carbon atoms, an aryl group or a vinyl group; X′ represents a chlorine atom or a bromine atom; and n is an integer of 0 to 3). A coated substrate comprising a porous silica coating film formed from the above coating liquid for forming porous silica coating. A short fiber silica having an average diameter (D) of 10 to 30 nm, a length (L) of 30 to 100 nm and an aspect ratio (L/D) of 3 to 10.
    Type: Grant
    Filed: April 28, 2000
    Date of Patent: September 24, 2002
    Assignee: Catallysts & Chemicals Industries Co., Ltd.
    Inventors: Akira Nakashima, Kazuaki Inoue, Ryo Muraguchi, Michio Komatsu
  • Patent number: 6447835
    Abstract: The present invention relates to a method of preparing a coated hollow polymeric tubular member useful in medical devices. The method involves a simple, unique method of simultaneously extruding and coating the polymeric tube.
    Type: Grant
    Filed: February 15, 2000
    Date of Patent: September 10, 2002
    Assignee: SciMed Life Systems, Inc.
    Inventors: Lixiao Wang, Yiqun Wang, Dachuan Yang
  • Patent number: 6444154
    Abstract: A continuous process provides a devolatilized liquid injection moldable silicone composition. In the process, a filler, treating agent and silicone polymer are introduced into an extruder having a length to diameter ratio of at least greater than 50. The filler, treating agent and silicone elastomer are continuously compounded in the extruder into a devolatilized liquid injection moldable silicone composition. A system for preparing a liquid silicone rubber composition comprises a mixer to prepare a concentrate of filler and silicone polymer, a long extruder having an L/D ratio of greater than 50, connected to the mixer to receive the concentrate from the mixer and to compound and devolatilize the concentrate, a treating agent and silicone polymer into a liquid silicone rubber composition containing volatiles and a cooler to receive the liquid silicone rubber composition to cool, homogenize and further devolatilized the composition.
    Type: Grant
    Filed: December 20, 2000
    Date of Patent: September 3, 2002
    Assignee: General Electric Company
    Inventors: Bruce Boudreau, Teresa Grocela-Rocha, Edward M. Jeram, August O. Liermann, Gerardo Rocha-Galicia, David A. Williams