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  • CPC
  • C08B11/22
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CCHEMISTRY METALLURGY C08Organic compounds C08BPOLYSACCHARIDES DERIVATIVES THEREOF C08B11/00Preparation of cellulose ethers

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C08B11/22Isolation
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Method for producing carboxymethyl cellulose or salt thereof, and b...
    • Patent number 10,941,218
    • Issue date Mar 9, 2021
    • Dai-Ichi Kogyo Seiyaku Co., Ltd.
    • Ryo Kakubari
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Dissolution and processing of cellulose
    • Patent number 10,179,823
    • Issue date Jan 15, 2019
    • ConvaTec Technologies Inc.
    • David Kershaw
    • D10 - INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEX...
  • Information Patent Grant

    Process for recovering an esterified cellulose ether from a reactio...
    • Patent number 9,587,037
    • Issue date Mar 7, 2017
    • Dow Global Technologies LLC
    • Oliver Petermann
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Dissolution and processing of cellulose
    • Patent number 9,358,251
    • Issue date Jun 7, 2016
    • ConvaTec Technologies Inc.
    • David Kershaw
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Process for producing cellulose derivatives of high bulk density, g...
    • Patent number 9,334,416
    • Issue date May 10, 2016
    • Dow Global Technologies LLC
    • Yvonne M. Goerlach-Doht
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Method of separating water-soluble cellulose ether
    • Patent number 8,324,377
    • Issue date Dec 4, 2012
    • Shin-Etsu Chemical Co., Ltd.
    • Kazuhisa Hayakawa
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Process for preparing methylhydroxyalkylcellulose having a small nu...
    • Patent number 8,197,699
    • Issue date Jun 12, 2012
    • Dow Global Technologies LLC
    • Martin Kowollik
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Process for recovering salable cellulose ethers from an aqueous med...
    • Patent number 5,504,201
    • Issue date Apr 2, 1996
    • The Dow Chemical Company
    • Kenneth C. Reibert
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Purification of aqueous reaction or washing medium containing cellu...
    • Patent number 5,482,634
    • Issue date Jan 9, 1996
    • The Dow Chemical Company
    • Yvonne M. Goerlach-Doht
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Process for producing methyl hydroxyalkyl cellulose ethers
    • Patent number 5,360,902
    • Issue date Nov 1, 1994
    • Wolff Walsrode AG
    • Oke Brauer
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Process for removing cellulose ethers from a cellulose ether suspen...
    • Patent number 4,954,268
    • Issue date Sep 4, 1990
    • Guenther Just
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Composition and process for making precipitated hydroxyethylcellulose
    • Patent number 4,247,688
    • Issue date Jan 27, 1981
    • Akzona Incorporated
    • Neal E. Franks
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Filtration of cellulosic solutions
    • Patent number 4,018,681
    • Issue date Apr 19, 1977
    • International Telephone & Telegraph Corporation
    • Edmund M. LaPolla
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    3719663
    • Patent number 3,719,663
    • Issue date Mar 6, 1973
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    3709877
    • Patent number 3,709,877
    • Issue date Jan 9, 1973
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    3451998
    • Patent number 3,451,998
    • Issue date Jun 24, 1969
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    3278041
    • Patent number 3,278,041
    • Issue date Oct 11, 1966
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    3049537
    • Patent number 3,049,537
    • Issue date Aug 14, 1962
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    2781341
    • Patent number 2,781,341
    • Issue date Feb 12, 1957
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    2617800
    • Patent number 2,617,800
    • Issue date Nov 11, 1952
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    2495767
    • Patent number 2,495,767
    • Issue date Jan 31, 1950
    • D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
  • Information Patent Grant

    2357469
    • Patent number 2,357,469
    • Issue date Sep 5, 1944
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    2351258
    • Patent number 2,351,258
    • Issue date Jun 13, 1944
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    2249673
    • Patent number 2,249,673
    • Issue date Jul 15, 1941
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    2238714
    • Patent number 2,238,714
    • Issue date Apr 15, 1941
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    2207076
    • Patent number 2,207,076
    • Issue date Jul 9, 1940
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    2121732
    • Patent number 2,121,732
    • Issue date Jun 21, 1938
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    2121731
    • Patent number 2,121,731
    • Issue date Jun 21, 1938
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    2107005
    • Patent number 2,107,005
    • Issue date Feb 1, 1938
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    2101032
    • Patent number 2,101,032
    • Issue date Dec 7, 1937
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents