With Processing Before Extrusion Or Inclusion Of Additive Patents (Class 264/210.6)
  • Patent number: 10626522
    Abstract: The invention relates to a polymer fibre with improved dispersibility, a method for producing said fibre and the use of said fibre. The polymer fibre according to the invention comprises at least one synthetic polymer and 0.1 and 20 wt. % of a silicone. The polymer forming the fibre forms a solid dispersion medium at room temperature (25° C.) for the silicone present in solid form also at room temperature (25° C.) which forms the more disperse phase. The polymer fibre according to the invention possesses an improved dispersibility and is therefore suitable for producing aqueous suspensions which are used, for example, in the formation of textile fabrics, e.g. nonwovens.
    Type: Grant
    Filed: March 20, 2015
    Date of Patent: April 21, 2020
    Assignee: Trevira GmbH
    Inventors: Jorg Dahringer, Michael Klanert, Thomas Hesse
  • Patent number: 10519585
    Abstract: Systems for shipping and operation dampening an appliance having a housing, a moveable tub member inside the housing, and a dampening portion are provided. The housing includes at least one sidewall, with the dampening portion disposed at least partially between the moveable tub member and the at least one side wall. The dampening portion includes a resilient material having at least one surface extending at least partially along the sidewall or tub member.
    Type: Grant
    Filed: November 10, 2016
    Date of Patent: December 31, 2019
    Assignee: Owens Corning Intellectual Capital, LLC
    Inventor: Anthony L. Rockwell
  • Patent number: 10501608
    Abstract: Provided is a rubber composition for tire treads containing a diene rubber, from 1 to 20 parts by weight of a silica containing millable silicone rubber compound, and from 0.2 to 20 parts by weight of thermally expandable microcapsules, per 100 parts by weight of the diene rubber. A rubber hardness of the millable silicone rubber compound is from 10 to 50.
    Type: Grant
    Filed: March 26, 2015
    Date of Patent: December 10, 2019
    Assignee: The Yokohama Rubber Co., LTD.
    Inventor: Masaki Sato
  • Patent number: 10357830
    Abstract: The method for the production of an element subject to wear, comprising a metal matrix and at least a core of hard material. The method provides a first step in which a temporary aggregation structure is prepared with at least partly open pores, which volatilize or in any case eliminate at least partly when subjected to heating. A second step in which, on the whole internal and external surface of said temporary aggregation structure, a liquid mixture of a binder with metal powders which contain hard elements or their precursors is uniformly distributed. A third step in which the temporary aggregation structure is deteriorated by means of a thermal action of controlled heating, so as to take at least part of the temporary aggregation structure to evaporation, rendering free a volume inside the core, and to consolidate the mixture according to the conformation of the temporary aggregation structure. A fourth step in which the core is disposed in a mold so as to only partly occupy the free volume of the mold.
    Type: Grant
    Filed: July 8, 2011
    Date of Patent: July 23, 2019
    Assignee: F.A.R.—Fonderie Acciaierie Roiale—SpA
    Inventors: Alberto Andreussi, Primo Andreussi, Enrico Veneroso, Eddy Pontelli
  • Patent number: 10240117
    Abstract: A bioreactor container comprising has an at least locally flexible wall and at least one container opening. The wall of the bioreactor container has a fluid-tight inner sheet, and an at least locally fluid-permeable or structured outer sheet. A method for testing the integrity of the bioreactor container also is provided.
    Type: Grant
    Filed: October 19, 2015
    Date of Patent: March 26, 2019
    Assignee: Sartorius Stedim Biotech GmbH
    Inventors: Martin Dahlberg, Isabelle Gay, Lars Boettcher, Stefan Obermann, Rainer Sandrock
  • Patent number: 10215916
    Abstract: An optical fiber rod (30) according to the present invention includes a center region (35), an outer region (31) formed around the center region (35), and an intermediate region (33) formed between the center region (35) and the outer region (31), and satisfies nA>nB>nC where nA is the refractive index of a material A produced by polymerization of a monomer ma, nB is the refractive index of a material B produced by polymerization of a monomer mb, and nC is the refractive index of a material C produced by polymerization of a monomer mc. The center region (35) is made of a material produced by polymerization of a monomer mixture containing the monomer ma, the outer region (31) is made of a material produced by polymerization of a monomer mixture containing the monomer mc, and the intermediate region (33) is made of a material produced by polymerization of a monomer mixture containing the monomer mb.
    Type: Grant
    Filed: December 22, 2015
    Date of Patent: February 26, 2019
    Assignee: KURARAY CO., LTD.
    Inventor: Ryuichi Iwakawa
  • Patent number: 10174454
    Abstract: A copolymer composition is disclosed with advantages for textile fibers, yarns, blended yarns, fabrics, and garments. The composition includes polyester copolymer, between about 4.5 and 5.5 percent adipic acid based on the amount of copolymer, between about 630 and 770 parts per million (ppm) of pentaerythritol based on the amount of copolymer, and between about 3.4 and 4.2 percent polyethylene glycol based on the amount of copolymer.
    Type: Grant
    Filed: September 7, 2016
    Date of Patent: January 8, 2019
    Assignee: Parkdale Incorporated
    Inventor: Robert Alton Usher, Jr.
  • Patent number: 10087303
    Abstract: An inorganic particulate material such as diatomaceous earth, a polymer composition comprising a polymer and the inorganic particulate material and an article or product formed from said composition, use of the inorganic particulate material such as diatomaceous earth as a filler in a composition comprising a polymer, and a method of making a polymer composition and an inorganic particulate material.
    Type: Grant
    Filed: May 7, 2015
    Date of Patent: October 2, 2018
    Assignee: Imerys Minerals Limited
    Inventor: Andrew Mark Riley
  • Patent number: 9915012
    Abstract: The present disclosure relates to a compact polymer gel consisting of ultrahigh molecular weight polyethylene (UHMWPE), at least one nucleator, at least one filler and at least one fluid medium. The present disclosure also provides a process for the preparation of the compact polymeric gel and fibers from the compact polymeric gel. The fibers prepared in accordance with the present process have tensile strength ranging from 2.5 to 10 GPa and tensile modulus ranging from 110 to 300 GPa.
    Type: Grant
    Filed: May 21, 2014
    Date of Patent: March 13, 2018
    Assignee: Reliance Industries Limited
    Inventors: Uma Sankar Satpathy, Satya Srinivasa Rao Gandham, Ajit Behari Mathur, Raksh Vir Jasra, Krishna Renganath Sarma, Amit Kumar Punamchand Shah, Yogini Maheshbhai Amin, Gaurang Manilal Mehta, Nanubhai Fuljibhai Patel, Viralkumar Patel
  • Patent number: 9169151
    Abstract: A manufacturing method that enables stably making a high-quality optical fiber is provided. The manufacturing method of the present invention comprises: a softened portion falling step in which an optical fiber preform is heated in a heating furnace and a dropping part of softened portion of the preform thus heat-softened is allowed to drop; and a drawing step for drawing the preform such that the softened glass is drawn into a fiber by applying a tension with a take-up means after the softened portion falling step, whereas the preform is rotated about its axis at the softened portion falling step.
    Type: Grant
    Filed: June 6, 2013
    Date of Patent: October 27, 2015
    Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Yuji Abe, Ryutaro Miyazaki
  • Patent number: 9102793
    Abstract: A polyester resin comprising residues of 2,5-furandicarboxylic acid and a diol, which can be used for producing a molded article having excellent impact resistance, and a method of producing the polyester resin. The polyester resin has structural units represented by general formulae (1) and (3): R1 in general formula (1) is an optionally substituted acyclic aliphatic hydrocarbon group. R2 in general formula (3) represents an alkylene group, and m represents an integer from 2 to 1,140, provided that a case where R2 represents an ethylene group and m represents 2 is excluded.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: August 11, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventor: Shinji Eritate
  • Patent number: 9005500
    Abstract: When extrusion of a molten resin by means of an extruder is started, a simple polyetherimide resin is melt extruded from a lip portion 7a of a T-die 7, and a film of the simple polyetherimide resin is molded. The molding material is then switched to a resin composition including the polyetherimide resin and a fluorine resin and then a film of the resin composition is continuously extruded and molded from the T-die 7. Having been covered with a very thin film 8a of the simple polyetherimide resin, on a flow passage face of the lip portion 7a of the T-die 7, a resin composition layer 8b including a polyetherimide resin and a fluorine resin, which has affinity with the film 8a, is then formed at a center part.
    Type: Grant
    Filed: December 16, 2010
    Date of Patent: April 14, 2015
    Assignee: Shin-Etsu Polymer Co., Ltd.
    Inventors: Michimasa Ote, Takashi Gonda, Junya Ishida, Kenro Takizawa, Kazuhiro Suzuki, Yuzo Morioka
  • Publication number: 20150083658
    Abstract: A method for the production of a filter membrane (1), whereby as starting material for the membrane production, at least one filler (3) and, optionally, at least one additional aggregate are admixed into a polymer membrane material (2), whereby the membrane material (4) that has the filler (3), and optionally the additional aggregate, is extruded to form a polymer film (5) that is charged with the filler (3), and optionally, the additional aggregate, after which the polymer film (5) is then stretched in a particularly monoaxial and/or biaxial manner for pore formation.
    Type: Application
    Filed: January 15, 2013
    Publication date: March 26, 2015
    Applicant: Ewald Dörken AG
    Inventors: Jörn Schröer, Daniel Placke
  • Publication number: 20150076719
    Abstract: A method of manufacturing a polyimide film includes: extruding a polyimide film including polyimide and a solvent; first drying the extruded polyimide film; stripping the first-dried polyimide film; second drying the stripped polyimide film to remove a residual solvent in the polyimide film; and stretching the second-dried polyimide film, wherein an amount of the residual solvent in the second-dried polyimide film is equal to or less than about 10 weight percent.
    Type: Application
    Filed: August 5, 2014
    Publication date: March 19, 2015
    Inventors: Chan Jae Ahn, Sung Won CHOI, Won Suk CHANG
  • Patent number: 8980963
    Abstract: The invention relates to an article that has been obtained by the melt-process recycling of one or more multi-layer articles, where the multi-layer articles are composed of at least one melt-processible polyvinylidene fluoride layer. The composition of the invention is a compatible blend of the different layers from the multi-layer articles. The other layers of the multi-layer articles are also melt-processible, and include one or more layers chosen from: a) a melt-processible fluoropolymer of a different composition, b) a non-fluoropolymer, and c) a barrier layer. The composition is useful for forming an article in a melt-process operation. The composition may be used by itself, may be blended with other virgin or recycled materials, or may be used at low levels with melt-processible polymers as a process aid.
    Type: Grant
    Filed: July 29, 2014
    Date of Patent: March 17, 2015
    Assignee: Arkema Inc.
    Inventors: Saeid Zerafati, Sean M. Stabler, William J. Hartzel
  • Publication number: 20150064226
    Abstract: The present invention relates to an insecticide-containing fabric containing at least one embedded insecticidally active ingredient in the polymeric matrix and having excellent wash resistance, and also to the products produced from this fabric and to their use for protecting humans, animals and plants against arthropods, particularly for controlling insects.
    Type: Application
    Filed: October 14, 2014
    Publication date: March 5, 2015
    Inventors: Rainer SONNECK, Thomas BÖCKER, Karin HORN, Guenther NENTWIG, Maren HEINEMANN, Thomas KÖNG
  • Publication number: 20150050858
    Abstract: The present disclosure provides a flame retardant composition as well as fibers comprising a matrix and an additive wherein each of the matrix and the additive is independently selected from Ultra High Molecular weight Polyethylene (UHMPE) and Polyphosphazene (PPZ) and wherein, when the matrix is UHMPE, the additive is PPZ and when the matrix is PPZ, the additive is UHMPE. Further the present disclosure provides a process of melt spinning the flame retardant composition of a matrix and an additive wherein each of the matrix and the additive is independently selected from UHMPE and PPZ and wherein, when the matrix is UHMPE, the additive is PPZ and when the matrix is PPZ, the additive is UHMPE to obtain flame retardant fibers.
    Type: Application
    Filed: September 20, 2013
    Publication date: February 19, 2015
    Inventors: Arvind Kumar Saxena, Vineeta Nigam, Sandeep Kumar, Anjlina Kerketta
  • Publication number: 20150048537
    Abstract: Heat treating UHMWPE by applying pressure with radial constraint at suitable times during a heating protocol reduces or eliminates cavitation, which is otherwise observed to occur when the UHMWPE is heated to a temperature above 300° C. Heat treated UHMWPE can undergo subsequent processing involving crosslinking, deformation, doping with antioxidant, and homogenizing or annealing. Heating during these steps can be carried out even above the onset melt temperature of the UHMWPE without loss of physical properties.
    Type: Application
    Filed: October 11, 2013
    Publication date: February 19, 2015
    Applicant: BIOMET MANUFACTURING, LLC
    Inventors: Jordan H. FREEDMAN, David W. SCHROEDER
  • Publication number: 20150027530
    Abstract: Provided are a polyester white film and a back sheet for a solar cell module using the same, and in particular, provided is a polyester white film having improved light reflectance.
    Type: Application
    Filed: February 21, 2013
    Publication date: January 29, 2015
    Applicant: KOLON INDUSTRIES, INC.
    Inventors: Yun Jo Kim, Dong-Hyeon Choi, Si Min Kim
  • Patent number: 8927078
    Abstract: The present invention relates to encapsulated activated carbon and a method of preparing the same to protect the structure of the activated carbon and preserve the odor absorbing capability of the activated carbon particles. Particularly, the present invention is directed to a polymer article having odor absorption capabilities comprising a film comprising a matrix polymer and activated carbon particles at least partially encapsulated with a non-water soluble amorphous polymer, wherein the non-water soluble amorphous polymer is incompatible with the matrix polymer. The polymer article can be a bag.
    Type: Grant
    Filed: February 14, 2012
    Date of Patent: January 6, 2015
    Assignee: Reynolds Consumer Products Inc.
    Inventors: Chieh-Chun Chau, William F. Patchen
  • Patent number: 8906278
    Abstract: Processes for producing carbon fiber, the filament thereof and pre-oxidized fiber are provided. In one embodiment, the gel spinning of polyacrylonitrile filament is achieved by using small-molecule gelling agent, and the carbon fiber obtained thereby is increased by 15% to 40% in tensile strength and by 20% to 35% in toughness. In another embodiment, the melt spinning process of polyacrylonitrile is conducted by using imidazole type ion liquid as plasticizer, the process reduces environment pollution, is suitable for industrial production and the fiber produced thereby is improved in its strength. In yet another embodiment, polyacrylonitrile pre-oxidized fiber is produced by melt spinning, so low cost and controllable pre-oxidization of polyacrylonitrile can be achieved. In a further embodiment, high strength carbon fiber is manufactured by using polymer thickening agent.
    Type: Grant
    Filed: January 11, 2010
    Date of Patent: December 9, 2014
    Assignee: Donghua University
    Inventors: Muhuo Yu, Huaiping Rong, Keqing Han, Zhaohua Wang, Yiwei Zhang, Yincai Tian, Qinli Dong, Xi Zhao, Hui Zhang
  • Publication number: 20140356730
    Abstract: The present invention provides a propylene-based resin microporous film which has excellent lithium ion permeability, can constitute a high-performance lithium ion battery, and can prevent a short circuit between a positive electrode and a negative electrode due to dendrites. The propylene-based resin microporous film of the present invention is a propylene-based resin microporous film containing micropores, wherein the degree of gas permeability is 100 to 400 s/100 mL, the standard deviation of the degree of gas permeability is 7 s/100 mL or less, the thermal shrinkage ratio during heating at 105° C. for 2 hours is 6% or less, and the standard deviation of the thermal shrinkage ratio is 1% or less.
    Type: Application
    Filed: November 22, 2012
    Publication date: December 4, 2014
    Inventor: Takahiko Sawada
  • Patent number: 8894901
    Abstract: A method of making a sheet of building material, useful for roofing or siding applications, and the sheet material made by such method. A mixture of a thermoplastic resin and mineral filler is prepared, the resin comprising about 10% to 40% by weight of the mixture and the filler comprising about 60% to 90% by weight. The mixture is mixed at a temperature above the melting point of the resin and is formed into a sheet at such temperature. The sheet is allowed to cool until the surface is at a temperature below the midpoint of the melting range of the thermoplastic resin, e.g. in the range of 210 to 220 degrees F. (99 to 104 degrees C.), for polyethylene, at which point it is strained by passing it through calendering rollers. The sheet material made by this process, having a high concentration of mineral filler, is fire resistant, durable, ductile, of moderate weight and resistant to weathering. It can be produced using relatively inexpensive manufacturing equipment.
    Type: Grant
    Filed: October 1, 2007
    Date of Patent: November 25, 2014
    Assignee: G.R. Green Building Products Inc.
    Inventors: Geoffrey F. Wensel, Robert W. Suggitt
  • Publication number: 20140333002
    Abstract: The invention relates to an article that has been obtained by the melt-process recycling of one or more multi-layer articles, where the multi-layer articles are composed of at least one melt-processible polyvinylidene fluoride layer. The composition of the invention is a compatible blend of the different layers from the multi-layer articles. The other layers of the multi-layer articles are also melt-processible, and include one or more layers chosen from: a) a melt-processible fluoropolymer of a different composition, b) a non-fluoropolymer, and c) a barrier layer. The composition is useful for forming an article in a melt-process operation. The composition may be used by itself, may be blended with other virgin or recycled materials, or may be used at low levels with melt-processible polymers as a process aid.
    Type: Application
    Filed: July 29, 2014
    Publication date: November 13, 2014
    Applicant: Arkema Inc.
    Inventors: Saeid Zerafati, Sean M. Stabler, William J. Hartzel
  • Publication number: 20140227605
    Abstract: The present invention provides a production method and the like of a microporous stretched film having a high puncture strength and the like. The method includes: a first step of melt-kneading a cellulose nanofiber and a polyolefin resin to thereby disperse the nanofiber in the resin; a second step of removing water from a kneaded mixture obtained in the first step; a third step of mixing a plasticizer in the nanofiber and the resin and melt-kneading them to prepare a polyolefin resin composition; a fourth step of extrusion-molding the polyolefin resin composition; a fifth step of stretching an extrusion-molded article obtained in the fourth step to form a film; and a sixth step of extracting the plasticizer from the film.
    Type: Application
    Filed: September 6, 2012
    Publication date: August 14, 2014
    Applicant: THE JAPAN STEEL WORKS, LTD.
    Inventors: Satoru Nakamura, Yoshiyuki Kushizaki, Ryou Ishiguro, Mariko Yoshioka
  • Patent number: 8801984
    Abstract: The present invention relates to a multi-layered microporous polyolefin film for a battery separator and a method for preparing the same. The microporous multi-layered film of the present invention has a characteristics to have both the low shutdown temperature conferred by the polyethylene and the high melt fracture temperature conferred by the polypropylene and heat-resistant filler. In addition, it has the high strength and stability conferred by the micropores prepared under wet process and the high permeability and high strength conferred by the macropores prepared under dry process. Therefore, this multi-layered film can be used effectively to manufacture a secondary battery with high capacity and high power.
    Type: Grant
    Filed: July 15, 2011
    Date of Patent: August 12, 2014
    Assignee: SK Innovation Co., Ltd.
    Inventors: Jang-Weon Rhee, Inhwa Jung, Gwigwon Kang, Youngkeun Lee
  • Patent number: 8784712
    Abstract: A process for making a polyurethane, comprising reacting a multifunctional isocyanate, a polyol and, optionally, a chain extender, wherein at least two reagents selected from the isocyanate, the polyol, the chain extender, any mixture thereof and any pre-polymer formed therefrom, are intensively mixed prior to being reactively extruded, to form a polyurethane having a predetermined stoichiometry and thermal history. The polyurethanes obtained by such a process are of highly consistent composition and are, thus, especially suitable for use in the medical device industry.
    Type: Grant
    Filed: July 30, 2001
    Date of Patent: July 22, 2014
    Assignee: Ranier Limited
    Inventors: Geoffrey Thomas Andrews, Anthony Francis Johnson
  • Patent number: 8771582
    Abstract: The present invention is a bioactive, nanofibrous material construct which is manufactured using a unique electrospinning perfusion methodology. One embodiment provides a nanofibrous biocomposite material formed as a discrete textile fabric from a prepared liquid admixture of (i) a non-biodegradable durable synthetic polymer; (ii) a biologically active agent; and (iii) a liquid organic carrier. These biologically-active agents are chemical compounds which retain their recognized biological activity both before and after becoming non-permanently bound to the formed textile material; and will become subsequently released in-situ as discrete freely mobile agents from the fabric upon uptake of water from the ambient environment.
    Type: Grant
    Filed: November 23, 2011
    Date of Patent: July 8, 2014
    Assignees: BioScurfaces, Inc., Clemson University, Rhode Island Board of Education
    Inventors: Matthew D. Phaneuf, Philip J. Brown, Martin J. Bide
  • Publication number: 20140162046
    Abstract: An article of manufacture comprising a polymer composition, having 30 wt % or more and 95 wt % or less inert inorganic filler, that is oriented by the steps of conditioning the polymer composition to a drawing temperature of at least 15° C. and approximately 40° C. below a softening temperature of the polymer composition; and drawing the polymer composition though a drawing die at a drawing rate of at least 0.25 m/min and with a nominal draw ratio of 1.25 or more and 8 or less to produce the article of manufacture made of the oriented polymer composition.
    Type: Application
    Filed: December 19, 2013
    Publication date: June 12, 2014
    Applicant: Eovations, LLC
    Inventors: Kevin L. Nichols, Brett M. Birchmeier, Ian M. Ward, Philip D. Coates, Phil Caton-Rose, Glen P. Thompson, Vijay Wani, Rajen M. Patel
  • Patent number: 8710121
    Abstract: The invention relates to biaxially oriented polyester films which contain 0.25-20% by weight (based on the weight of the film) of a hydrolysis stabilizer based on epoxidized fatty acid esters and/or epoxidized fatty acid glycerides, and a chain extender. Such films find use in outdoor applications, as a ribbon cable, as a backside laminate of solar modules and in electrical insulation applications.
    Type: Grant
    Filed: April 2, 2009
    Date of Patent: April 29, 2014
    Assignee: Mitsubishi Polyester Film GmbH
    Inventors: Holger Kliesch, Bodo Kuhmann, Thomas Hackl, Dagmar Klein, Ingo Fischer, Annegrete Bursch
  • Patent number: 8685135
    Abstract: A method forming a potassium chloride particle form potassium chloride powder having resistance to moisture absorption and shrinkage. The original feedstock comprises potassium chloride in a size distribution of 30 mesh and 100 mesh as well as a gluten based binder.
    Type: Grant
    Filed: December 3, 2012
    Date of Patent: April 1, 2014
    Assignee: Karnalyte Resources Inc.
    Inventor: Robin Phinney
  • Patent number: 8673344
    Abstract: The present invention relates to a solid dosage form with at least one film, which contains an active substance at least in sections, and the concentration of the active substance in the film or in the films has a gradient in a direction normal to the thickness of film. The invention further relates to a method of producing a solid dosage form, in which at least one film is produced, containing an active substance at least in sections, with the concentration of the active substance having a gradient in the longitudinal direction of the film.
    Type: Grant
    Filed: November 12, 2007
    Date of Patent: March 18, 2014
    Assignee: Abbvie Deutschland GmbH & Co. KG
    Inventors: Jörg Rosenberg, Jörg Breitenbach, Peter Heilmann, Helmuth Steininger
  • Patent number: 8623245
    Abstract: A colored high strength polyethylene fiber, preparation method and use thereof are provided, which are in the high molecular material field. The surface of said high strength polyethylene fiber is chromatic, grey or black. The strength of said high strength polyethylene fiber is 15-50 g/d, its modulus is 400-2000 g/d. The product of the present invention is colored, so it can be well applied to civil and military field. The preparation method of present invention has some advantages that technological process is simple, production efficiency is high, cost of production is low, performance of made fiber is excellent, and use-cost is reduced, compared with the prior art.
    Type: Grant
    Filed: July 14, 2008
    Date of Patent: January 7, 2014
    Assignee: Shandong ICD High Performance Fibres Co., Ltd.
    Inventor: Yi Ren
  • Patent number: 8623247
    Abstract: Disclosed are water-dispersible fibers derived from sulfopolyesters having a Tg of at least 25° C. The fibers may contain a single sulfopolyester or a blend of a sulfopolyester with a water-dispersible or water-nondispersible polymer. Also disclosed are multicomponent fibers comprising a water dispersible sulfopolyester having a Tg of at least 57° C. and a water non-dispersible polymer. The multicomponent fibers may be used to produce microdenier fibers. Fibrous articles may be produced from the water-dispersible fibers, multicomponent fibers, and microdenier fibers. The fibrous articles include water-dispersible and microdenier nonwoven webs, fabrics, and multilayered articles such as wipes, gauze, tissue, diapers, panty liners, sanitary napkins, bandages, and surgical dressings. Also disclosed is a process for water-dispersible fibers, nonwoven fabrics, and microdenier webs.
    Type: Grant
    Filed: December 13, 2010
    Date of Patent: January 7, 2014
    Assignee: Eastman Chemical Company
    Inventors: William Alston Haile, Scott Ellery George, Wesley Raymond Hale, Waylon Lewellyn Jenkins
  • Patent number: 8568638
    Abstract: A polymer-based sausage casing suitable for use with uncooked meats such as chorizo is disclosed. A polymer resin is blended with a silicon-based barrier control agent, preferably a polyhedral oligomeric silsesquioxane, to increase the permeability of the sausage casing. The resultant blend can be biaxially stretch-oriented to produce a single-layered polymer-based sausage casing suitable for use with uncooked sausage meats such as chorizo, and specifically suitable for the gas and moisture permeability needed during the curing process for uncooked sausage meats. Such polymer-based casings can also be employed for cooked sausages by choosing a silicon-based barrier control agent that increases gas and moisture barrier, thereby increasing shelf-life for unpeeled sausages. A method for improving the peelability of cooked sausage casings by injecting a thin coating of a releasing agent, without the addition of a surfactant, into the sausage casing during the shirring process is also disclosed.
    Type: Grant
    Filed: May 4, 2005
    Date of Patent: October 29, 2013
    Assignee: Casematic S.A. de C.V.
    Inventor: Ruben Garcia Cruz
  • Patent number: 8496861
    Abstract: Method for making plastic fiber for application in concrete with largest grain diameters >4 mm, with an average diameter of 0.15 to 2 mm, corresponding to approximately 160 to 28,000 dtex. Using a co-extrusion process, a bi-component fiber is formed having a central core and a casing around the central core, the central core and the casing contain different pure polymers or polymer mixtures, and then the co-extruded bi-component fiber is stretched by a factor of 5 to 15, and thereafter a structured or grooved surface is embossed onto the co-extruded stretched bi-component fiber. The embossing is performed such that a depth of the embossing is more than 10% of an average fiber diameter, and a maximal distances of structure tips within incorporated structures of the embossing in an axial direction lie in a region between 0.5 mm and 3 mm.
    Type: Grant
    Filed: February 16, 2012
    Date of Patent: July 30, 2013
    Assignees: Eidgenossische Materialprufungs-und Forschungsanstalt, Fibrotec AG
    Inventors: Josef Kaufmann, Eugen Schwitter
  • Patent number: 8491825
    Abstract: The present invention provides to a method of producing fiber from tourmaline anion fiber; of which, polypropylene or polyethylene chip, TPE and submicrometer tourmaline particle are prepared and then rolled into submicrometer tourmaline agglomerate through granulation by double screw; then, take submicrometer tourmaline agglomerate and polypropylene or polyethylene chip, of which the content of tourmaline agglomerate accounts for 1˜10% of gross weight, and TPE for 1˜40% of gross weight; tourmaline agglomerate and polypropylene or polyethylene are melted into composite fiber or filter material via spinning, such that the fiber or filter material can yield anion and present outstanding gas permeability and mechanical property.
    Type: Grant
    Filed: January 26, 2010
    Date of Patent: July 23, 2013
    Assignee: Noveko Trading 2008 LLC
    Inventors: Ming-Fung Lin, Hung-Jen Chen, Chia-Jen Chen, Yung-Chien Chen, Chao-Mulan Chen
  • Patent number: 8435432
    Abstract: Retardation expressibility of a transparent polymer film can be easily controlled by heat treatment of the film at a temperature T (unit, ° C.) satisfying a condition of the following formula (1): Tc?T<Tm0??Formula (1) wherein Tc represents the crystallization temperature (unit, ° C.) of the film before the heat treatment; and Tm0 represents the melting point (unit, ° C.) of the film before the heat treatment.
    Type: Grant
    Filed: February 21, 2007
    Date of Patent: May 7, 2013
    Assignee: FUJIFILM Corporation
    Inventor: Yasuyuki Sasada
  • Patent number: 8388879
    Abstract: The present invention provides a method of preparing a flame retardant polyester fiber that makes it possible to prepare a flame retardant polyester fiber having excellent shape stability while preventing a lumping phenomenon and reducing powder generation and discoloration during the preparing process of the flame retardant polyester fiber, and a flame retardant polyester fiber prepared therefrom.
    Type: Grant
    Filed: December 21, 2007
    Date of Patent: March 5, 2013
    Assignee: Kolon Industries, Inc.
    Inventors: Yun-Jo Kim, Young-Soo Lee, Si-Min Kim
  • Patent number: 8337734
    Abstract: A method for manufacturing a non stick medical tube is provided. The method includes providing a first plastic resin to a tubing extrusion device and providing a second plastic resin to a tubing extrusion device, the second plastic resin comprising a medical grade amide compound. The method further includes mixing the first plastic resin with the second plastic resin and extruding the resin mixture such that said medical grade amide compound is present on an inner surface of said medical tube after extrusion to promote release of contacting surfaces of said inner surface of the medical tubing after contact.
    Type: Grant
    Filed: September 10, 2010
    Date of Patent: December 25, 2012
    Assignee: CareFusion 303, Inc.
    Inventors: Ludmila Victoria Nikitina, Kenneth Whitley
  • Patent number: 8329601
    Abstract: A biodegradable and renewable film that may be employed in a wide variety of applications is provided. The film is formed from a thermoplastic composition that contains at least one starch and at least one plant protein. Even at a high renewable material content, the present inventors have discovered that films may be readily formed from plant proteins and starches by selectively controlling the individual amount of the starch and plant proteins, the nature of the starch and plant proteins, and other components used in the film. Balancing the amount of starches and plant proteins within a certain range, for instance, can reduce the likelihood of plant protein aggregation and enhance the ability of the composition to be melt processed. The composition also contains at least one plasticizer that improves the thermoplastic nature of the protein and starch components. The selection of the plasticizer may also help reduce the tendency of the plant protein to aggregate during melt processing.
    Type: Grant
    Filed: December 18, 2008
    Date of Patent: December 11, 2012
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Bo Shi, Sarah A. Funk, James H. Wang, Gregory J. Wideman, Ross T. Kaufman, Vasily A. Topolkaraev
  • Patent number: 8323371
    Abstract: A method forming a potassium chloride particle form potassium chloride powder having resistance to moisture absorption and shrinkage. The original feedstock comprises potassium chloride in a size distribution of 30 mesh and 100 mesh as well as a gluten based binder.
    Type: Grant
    Filed: August 12, 2009
    Date of Patent: December 4, 2012
    Assignee: Kamalyte Resources Inc.
    Inventor: Robin Phinney
  • Patent number: 8282877
    Abstract: The present invention relates to a process for the production of a hydroentangled product comprising cellulose fibers, which includes the steps of (a) extruding a solution comprising cellulose dissolved in an aqueous tertiary amine-oxide through a spinneret into an air gap, thereby forming filaments (b) drawing said filaments by means of a gaseous stream (c) collecting and precipitating said filaments in order to form a web (d) bonding said web by means of a hydroentanglement process (e) contacting said filaments in the air gap with a medium which at least partially coagulates the filaments. Furthermore, the invention relates to products obtainable by said products, and uses thereof.
    Type: Grant
    Filed: April 26, 2007
    Date of Patent: October 9, 2012
    Assignee: Lenzing Aktiengesellschaft
    Inventors: Pat White, Haio Harms, Malcolm Hayhurst
  • Patent number: 8277710
    Abstract: The invention relates to biaxially oriented polyester films which contain 0.1-5.0% by weight (based on the weight of the film) of a hydrolysis stabilizer based on epoxidized fatty acid esters and 0.2-10% by weight (based on the weight of the film) of epoxidized fatty acid glycerides, the epoxidized fatty acid esters having a mean molecular weight of at least 425 g/mol. Such films find use in outdoor applications, as a ribbon cable, as a backside laminate of solar modules and in electrical insulation applications.
    Type: Grant
    Filed: April 2, 2009
    Date of Patent: October 2, 2012
    Assignee: Mitsubishi Polyester Film GmbH
    Inventors: Holger Kliesch, Dagmar Klein, Rainer Kurz, Dirk Broeder, Gottfried Hilkert, Volker Schaefer
  • Publication number: 20120235320
    Abstract: The invention relates to synthetic hybrid rock compositions, articles of manufacture and related processes employing mineral waste starting materials such as mine tailings, mine development rock, ash, slag, quarry fines, and slimes, to produce valuable articles of manufacture and products, which are characterized by superior physical and structural characteristics, including low porosity, low absorption, increased strength and durability, and retained plasticity. The resulting materials are compositionally and chemically distinct from conventional synthetic rock materials as demonstrated by scanning electron microprobe analysis, and are useful in a wide variety of applications, particularly with respect to commercial and residential construction.
    Type: Application
    Filed: June 1, 2012
    Publication date: September 20, 2012
    Inventors: ROSS GUENTHER, James L. Wood, Carl E. Frahme, Ian I. Chang, Robert D. Villwock
  • Publication number: 20120227801
    Abstract: A biaxially oriented polyester film including polyethylene terephthalate (PET) and at least one hydrolysis stabiliser selected from a glycidyl ester of a branched monocarboxylic acid, wherein the monocarboxylic acid has from 5 to 50 carbon atoms, wherein the hydrolysis stabiliser is present in the film in the form of its reaction product with at least some of the end-groups of the polyester; a process for making the same; and use of the film as a layer in a photovoltaic cell.
    Type: Application
    Filed: September 8, 2010
    Publication date: September 13, 2012
    Applicant: DUPONT TEIJIN FILMS U.S. LIMITED PARTNERSHIP
    Inventors: William J. Brennan, Simon V. Mortlock, Allan Lovatt, David Phillips, David R. Turner
  • Patent number: 8262958
    Abstract: Disclosed are water-dispersible fibers derived from sulfopolyesters having a Tg of at least 25° C. The fibers may contain a single sulfopolyester or a blend of a sulfopolyester with a water-dispersible or water-nondispersible polymer. Also disclosed are multicomponent fibers comprising a water dispersible sulfopolyester having a Tg of at least 57° C. and a water non-dispersible polymer. The multicomponent fibers may be used to produce microdenier fibers. Fibrous articles may be produced from the water-dispersible fibers, multicomponent fibers, and microdenier fibers. The fibrous articles include water-dispersible and microdenier nonwoven webs, fabrics, and multilayered articles such as wipes, gauze, tissue, diapers, panty liners, sanitary napkins, bandages, and surgical dressings. Also disclosed is a process for water-dispersible fibers, nonwoven fabrics, and microdenier webs.
    Type: Grant
    Filed: December 30, 2010
    Date of Patent: September 11, 2012
    Assignee: Eastman Chemical Company
    Inventors: William Alston Haile, Scott Ellery George, Wesley Raymond Hale, Waylon Lewellyn Jenkins
  • Patent number: 8246878
    Abstract: A method comprising extrusion compounding a styrenic polymer and a layered compound to produce a composite, and orienting the composite to produce an oriented composite wherein the layered compound comprises natural clay, synthetic clay, natural colloid, synthetic colloid, natural sol, synthetic sol, natural gel, synthetic gel, natural fumes, synthetic fumes, or combinations thereof. A method of preparing an oriented film comprising extrusion compounding a styrenic polymer and a clay to produce a nanocomposite, casting the nanocomposite into a film, and orienting the film in at least one direction.
    Type: Grant
    Filed: April 30, 2008
    Date of Patent: August 21, 2012
    Assignee: Fina Technology, Inc.
    Inventors: Luyi Sun, Jose Sosa
  • Patent number: 8246873
    Abstract: Making foamed polyolefin tapes can include combining a polyolefin resin and a chemical blowing agent to form a mixture. This mixture can then be heated in an extruder to create a supersaturated solution of gas within the polyolefin resin. A cooling device can be positioned adjacent to a die at a set distance for receiving extruded resin and for allowing exposure of the extruded resin to ambient air between a die outlet and the cooling device. This predetermined distance or space between the cooling device and die outlet allows bubbles to grow in the extruded resin and to be shaped such that voids or empty spaces can be generated within the extruded polyolefin resin. The voids or empty spaces allow the formation of tapes which use less material but have adequate strength for various applications, such as for carpet backings, geotextiles, packaging, housewrap, bags, wire insulation, and reinforcement elements in concrete.
    Type: Grant
    Filed: October 31, 2008
    Date of Patent: August 21, 2012
    Assignee: Propex Operating Company, LLC
    Inventors: Hugh C. Gardner, Josef Uesbeck, Andy Rakovac, Philippe Combier, Kam Lui
  • Publication number: 20120088149
    Abstract: The present invention relates to microporous membranes comprising polymer and having well-balanced permeability and heat shrinkage, especially heat shrinkage at elevated temperature. The invention also relates to methods for making such membranes, and the use of such membranes as battery separator film in, e.g., lithium ion secondary batteries.
    Type: Application
    Filed: June 8, 2010
    Publication date: April 12, 2012
    Applicant: TORAY TONEN SPECIALTY SEPARATOR GODO KAISHA
    Inventors: Takeshi Ishihara, Satoshi Miyaoka, Koichi Kono, Patrick Brant