TREA

obtained by reactions forming in the main chain of the macromolecule a linkage containing sulfur

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  • CPC
  • D21H17/58
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DTEXTILES PAPER D21Papermaking D21HPULP COMPOSITIONS PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D IMPREGNATING OR COATING OF PAPER TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G PAPER NOT OTHERWISE PROVIDED FOR D21H17/00Non-fibrous material added to the pulp, characterised by its constitution Paper-impregnating material characterised by its constitution

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D21H17/58obtained by reactions forming in the main chain of the macromolecule a linkage containing sulfur
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Polymers, composites, and methods for making polymers and composites
    • Patent number 10,184,022
    • Issue date Jan 22, 2019
    • Hexion Inc.
    • Adam Daniel Dowden
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Polymers, composites, and methods for making polymers and composites
    • Patent number 9,598,580
    • Issue date Mar 21, 2017
    • Hexion Inc.
    • Adam Daniel Dowden
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    Processes to produce short-cut microfibers
    • Patent number 9,175,440
    • Issue date Nov 3, 2015
    • Eastman Chemical Company
    • Kenny Randolph Parker
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    Sulfopolyesters for paper strength and process
    • Patent number 8,512,519
    • Issue date Aug 20, 2013
    • Eastman Chemical Company
    • Rakesh Kumar Gupta
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    Thermally stable, non-woven, fibrous paper, derivatives thereof, an...
    • Patent number 6,890,636
    • Issue date May 10, 2005
    • Sordal Incorporated
    • Dale Danver
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    Papermaking process
    • Patent number 5,595,629
    • Issue date Jan 21, 1997
    • Nalco Chemical Company
    • Arthur J. Begala
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    Process for producing inorganic fiber-based prepreg sheet and proce...
    • Patent number 5,328,566
    • Issue date Jul 12, 1994
    • Honshu Paper Co., Ltd.
    • Hidekuni Yokoyama
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    Process for the production of paper
    • Patent number 5,127,994
    • Issue date Jul 7, 1992
    • EKA Nobel AB
    • Hans E. Johansson
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    Non-alum sizing
    • Patent number 4,878,999
    • Issue date Nov 7, 1989
    • Westvaco Corporation
    • John W. Gowan
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    Paper manufacture with improved retention agents
    • Patent number 4,070,236
    • Issue date Jan 24, 1978
    • Sandoz Ltd.
    • Jean-Pierre Carrard
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    3864392
    • Patent number 3,864,392
    • Issue date Feb 4, 1975
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    3829466
    • Patent number 3,829,466
    • Issue date Aug 13, 1974
    • B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
  • Information Patent Grant

    3804704
    • Patent number 3,804,704
    • Issue date Apr 16, 1974
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    3792027
    • Patent number 3,792,027
    • Issue date Feb 12, 1974
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    3752854
    • Patent number 3,752,854
    • Issue date Aug 14, 1973
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    3630834
    • Patent number 3,630,834
    • Issue date Dec 28, 1971
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    3582462
    • Patent number 3,582,462
    • Issue date Jun 1, 1971
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    3458343
    • Patent number 3,458,343
    • Issue date Jul 29, 1969
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    2511911
    • Patent number 2,511,911
    • Issue date Jun 20, 1950
    • C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents