Polymerized Unsaturated Compound Patents (Class 162/157.4)
  • Patent number: 11408128
    Abstract: A process is provided for applying sizing to a wet laid fibrous sheet that comprises providing an aqueous slurry that comprises cellulose fibers and cellulose ester staple fibers; forming the wet laid fibrous sheet from the slurry; and applying an aqueous sizing composition that comprises one or more sizing agents to the wet laid fibrous sheet. In embodiments, the cellulose ester staple fibers are present in an amount sufficient to permit the sheet to have a higher sizing composition uptake and to impart higher sizing properties to the sheet, compared to a sheet formed from a 100% cellulose fiber slurry, when processed under similar conditions.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: August 9, 2022
    Assignee: Eastman Chemical Company
    Inventors: Melvin Glenn Mitchell, Charles Stuart Everett, Kenny Randolph Parker
  • Patent number: 9506194
    Abstract: The general inventive concepts relate generally to carbon enhanced reinforcement (CER) fibers, and more particularly, to the controlled dispersion of CER fibers within aqueous or non-aqueous media. The general inventive concepts particularly relate to the controlled dispersion of CER fibers within aqueous or non-aqueous media for forming a nonwoven chopped CER fiber mat. The general inventive concepts also relate to the controlled dispersion of CNSs harvested from CER fibers within aqueous or non-aqueous media for forming a nonwoven CNS mat. Methods for dispersing the CNSs or the CER fibers in aqueous or non-aqueous media are also provided.
    Type: Grant
    Filed: September 4, 2013
    Date of Patent: November 29, 2016
    Assignee: OCV Intellectual Capital, LLC
    Inventors: Scott William Schweiger, Stephanie Ann Rinne, Leonard Joseph Adzima
  • Publication number: 20150114580
    Abstract: Fibrous elements, for example filaments, containing an acrylamide-based copolymer, fibrous structures employing such fibrous elements, and methods for making same are provided.
    Type: Application
    Filed: October 22, 2014
    Publication date: April 30, 2015
    Inventors: Matthew Gary McKEE, Gregory Charles GORDON, Joerg KLEINWAECHTER, Mark Robert SIVIK, Paul Dennis TROKHAN
  • Publication number: 20140356597
    Abstract: Water-soluble, printable paper is disclosed. Methods of making and using water-soluble, printable paper are also disclosed.
    Type: Application
    Filed: May 27, 2014
    Publication date: December 4, 2014
    Applicant: Eastern Technologies Inc.
    Inventor: John B. Steward
  • Publication number: 20140251561
    Abstract: The present invention relates to a fiber comprising polyvinylpyrrolidone, and a web employing such a fiber.
    Type: Application
    Filed: May 19, 2014
    Publication date: September 11, 2014
    Applicant: The Procter & Gamble Company
    Inventors: Valerie Ann BAILEY, Larry Neil MACKEY, Paul Dennis TROKHAN
  • Patent number: 7943699
    Abstract: Disclosed are films, tapes, and melt-spun fibers prepared from a composition comprising (a) at least one polyester polymer and (b) from about 1 to 30 weight % of at least one ethylene copolymer such as ethylene/vinyl acetate dipolymers, ethylene/vinyl acetate terpolymers, ethylene/alkyl (meth)acrylate dipolymers, ethylene/alkyl (meth)acrylate terpolymers, functionalized ethylene copolymers, ethylene/acid copolymers, and salts thereof. The films, tapes and fibers exhibit improved tensile properties such as tensile strength and elongation at break compared to non-modified polyester compositions. Also disclosed are textiles and articles prepared from the fibers described.
    Type: Grant
    Filed: October 20, 2004
    Date of Patent: May 17, 2011
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Loic Pierre Rolland, Sam Louis Samuels
  • Publication number: 20110104444
    Abstract: Fibrous structures that exhibit a pore volume distribution such that at least 25% and/or at least 43% of the total pore volume present in the fibrous structures exists in pores of radii of from 91 ?m to 140 ?m, and to methods for making such fibrous structures are provided.
    Type: Application
    Filed: November 2, 2010
    Publication date: May 5, 2011
    Inventors: Steven Lee Barnholtz, Paul Dennis Trokhan, Douglas Jay Barkey, Christopher Michael Young, Michael Donald Suer
  • Publication number: 20110100574
    Abstract: Fibrous structures that exhibit a 4-Factor Consumer Relevant Property Value and more particularly to fibrous structures that exhibit a 5-Factor and/or 6-Factor Consumer Relevant Property Value are provided.
    Type: Application
    Filed: November 2, 2010
    Publication date: May 5, 2011
    Inventors: Steven Lee Barnholtz, Paul Dennis Trokhan, Christopher Michael Young, Douglas Jay Barkey
  • Publication number: 20090159228
    Abstract: A size composition for reinforcement fibers used to form non-woven mats that contain variable amounts of individual filaments dispersed from chopped reinforcement fiber bundles is provided. The size composition contains a polyvinylamine film former, one or more silane coupling agents, and, optionally a lubricant. The size composition works in conjunction with the whitewater components in a wet-laid mat forming process to disperse individual filaments from the bundles of chopped fibers. The whitewater contains an anionic polyacrylamide viscosity modifier and/or a cationic or non-ionic amine dispersant (e.g., ethoxylated amine). The presence of a cationic or non-ionic amine in the whitewater disperses individual filaments from the chopped glass fiber bundles. The greater the amount of cationic or non-ionic amine present in the whitewater, the greater the amount of fiber dispersion.
    Type: Application
    Filed: December 21, 2007
    Publication date: June 25, 2009
    Inventors: Annabeth Law, Scott W. Schweiger, Leonard J. Adzima, Paul R. Krumlauf
  • Publication number: 20090126887
    Abstract: The invention concerns a paper useful as an structural component, the paper comprising 20 to 100 percent by weight of polypyridobisimidazole fiber and a binder material, wherein the paper has (i) a density of 0.08 to 1.5 grams per cubic centimeter and (ii) a basis weight of from 10 to 150 grams per square meter, and the paper, when impregnated with at least 15% by weight of phenolic resin, has a specific tensile stiffness of at least 100 (N/cm)/(g/m2), wherein the weight % is based on the total weight of the paper and resin.
    Type: Application
    Filed: December 19, 2006
    Publication date: May 21, 2009
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventor: Mikhail R. Levit
  • Publication number: 20090101295
    Abstract: The invention concerns a fibrous pulp comprising polypyridobisimidazole fiber, the pulp having a Canadian Standard Freeness (CSF) of no more than about 650 ml, a specific surface area of from 0.5 to 50 square meters per gram, a length-weighted average length of from 0.5 to 2.0 mm, and a equilibrium moisture content of greater than 10 percent by weight. Also provided are papers made from such pulp and processes for making the pulp.
    Type: Application
    Filed: December 19, 2006
    Publication date: April 23, 2009
    Inventors: Edmund A. Merriman, Kevin A. Mulcahy, Mikhail R. Levit
  • Patent number: 7510626
    Abstract: A carbon fiber paper including carbon fibers having a surface area ratio of 1.05 or more, and a porous carbon electrode substrate for a fuel cell having this carbon fiber paper as a constituent. The electrode substrate for a fuel cell has carbon fibers uniformly dispersed therein and is flexible. The carbon fiber paper is suitable for production of the electrode substrate.
    Type: Grant
    Filed: April 9, 2003
    Date of Patent: March 31, 2009
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Mitsuo Hamada, Hidehiko Ohashi, Kazushige Mihara, Tomoyoshi Chiba, Makoto Nakamura
  • Publication number: 20090078383
    Abstract: The invention concerns a process for making a fibrillated polypyridobisimidazole floc comprising the steps of: cutting polypyridobisimidazole filaments to an average cut length of from about 0.5 to 10 mm; and applying energy to the polypyridobisimidazole filaments to produce a fibrillated floc having essentially the same average cut length after the application of energy as before the application of energy; where the fibrillated floc having a Canadian Standard Freeness (CSF), when dispersed in water by itself, of from about 400 to 750 ml.
    Type: Application
    Filed: December 19, 2006
    Publication date: March 26, 2009
    Inventors: Mikhail R. Levit, Achim Amma, Edmund A. Merriman
  • Publication number: 20080251224
    Abstract: A process is described for manufacturing a paperboard from a high consistency slurry containing high levels of crosslinked cellulosic fibers by dispersing the fibers in a screen with a rotor in the screen and then passing the fibers through the screen basket with a hole diameter of at least 2 mm and forming the cellulosic fibers on a foraminous support. Another slurry of regular cellulosic fibers is deposited on at least one side of the first slurry during the formation process. The formed web is dewatered and dried.
    Type: Application
    Filed: April 10, 2008
    Publication date: October 16, 2008
    Applicant: Weyerhaeuser Co.
    Inventor: Paul A. Schwonke
  • Publication number: 20080047678
    Abstract: The invention relates to polymers useful as a papermaking additives, The invention also relates to methods for making and using such additives.
    Type: Application
    Filed: April 19, 2005
    Publication date: February 28, 2008
    Applicant: KEMIRA OYJ
    Inventors: Lucyna Pawlowska, Robert Proverb
  • Patent number: 7306846
    Abstract: Discrete particles of cellulosic material are flowable and meterable. They are easily dispersible in an aqueous or a dry medium. The particles comprise singulated cellulose fibers that have been densified. The particles have a density of at least 0.3 g/cc.
    Type: Grant
    Filed: August 19, 2005
    Date of Patent: December 11, 2007
    Assignee: Weyerhaeuser Company
    Inventors: Ramon C. Dezutter, Michael R. Hansen
  • Patent number: 7272915
    Abstract: A composite sheet, and a process of making the same, including cured modified urea formaldehyde reinforced by glass fibers. The modifier is an acrylonitrile-butadiene-styrene copolymer. A roofing shingle, formed by coating the composite sheet with filled asphalt, represents a major application of the composite sheet.
    Type: Grant
    Filed: May 7, 2004
    Date of Patent: September 25, 2007
    Assignee: Building Materials Investment Corporation
    Inventor: Qinyun Peng
  • Patent number: 6720388
    Abstract: A polypropylene blend including from 0.5 to 50% by weight of a syndiotactic polypropylene having a multimodal molecular weight distribution and at least 50% by weight of an isotactic polypropylene.
    Type: Grant
    Filed: January 24, 2002
    Date of Patent: April 13, 2004
    Assignee: Atofina Research S.A.
    Inventor: Axel Demain
  • Patent number: 6706147
    Abstract: The invention relates to a coated fiber mat of improved tear strength upon dividing pieces of the coated mat and the coating which comprises a cured, non-woven, fiber glass mat containing a polysiloxane wherein the fibers are fixedly distributed in a formaldehyde type binder containing a binder modifier which is a crosslinked styrene/acrylic polymer, and to a process for the preparation of the mat.
    Type: Grant
    Filed: December 9, 2002
    Date of Patent: March 16, 2004
    Assignee: Building Materials Investment Corporation
    Inventors: Qinyun Peng, Krishna Srinivasan
  • Publication number: 20030051838
    Abstract: The present invention provides a synthetic fiber paper, the synthetic fiber paper comprises poly (phenylene terephthal amide) fiber, polyethylene glycol terephthalate fiber and powdered mica. The synthetic fiber paper has high-temperature resistance, high strength. low-deformability, resistivity against fire, burning resistance, resistance to chemical corrosion and excellent property of electric insulation, it can be widely applied in the field of mechano-electronics product, aviation, aerospace, military project for national defense, high-tech areas for civil use, high-voltage equipment, high-temperature circumstance as insulting material, it often can be used in composite materials with special use as structural material. The present invention also provides a process for preparing this synthetic fiber paper.
    Type: Application
    Filed: September 3, 2002
    Publication date: March 20, 2003
    Applicant: Sichuan Foreign Economic Relations & Trade Corporation
    Inventors: Xingli Wang, Shiyi Tao
  • Patent number: 6482895
    Abstract: The subject invention is directed to fibers and polymer blend compositions having improved bonding performance. In particular, the subject invention pertains to a multiconstituent fiber comprising a blend of a polypropylene polymer and a high molecular weight (i.e. low melt index or melt flow) ethylene polymer. The subject invention further pertains to the use of the fiber and polymer blend composition which has improved bonding performance in various end-use applications, especially woven and nonwoven fabrics such as, for example, disposable incontinence garments and diapers. The fibers have good spinnability and provide fabrics having improved bond strength and elongation.
    Type: Grant
    Filed: June 15, 2001
    Date of Patent: November 19, 2002
    Assignee: Dow Global Technologies Inc.
    Inventors: Rexford A. Maugans, Kenneth B. Stewart, Edward N. Knickerbocker