DE210917T1 - Verfahren zur herstellung eines cellulose-ethers mit einem verminderten polymerisationsgrad. - Google Patents

Verfahren zur herstellung eines cellulose-ethers mit einem verminderten polymerisationsgrad.

Info

Publication number
DE210917T1
DE210917T1 DE1986401621 DE86401621T DE210917T1 DE 210917 T1 DE210917 T1 DE 210917T1 DE 1986401621 DE1986401621 DE 1986401621 DE 86401621 T DE86401621 T DE 86401621T DE 210917 T1 DE210917 T1 DE 210917T1
Authority
DE
Germany
Prior art keywords
cellulose ether
hydrogen chloride
reactant
chloride solution
amount
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
DE1986401621
Other languages
German (de)
English (en)
Inventor
Tohru Chiba
Atsushi Joetsu-Shi Niigata-Ken Hatayama
Kazumasa Maruyama
Hiroaki Muto
Yuichi Nakakubiki-Gun Niigata-Ken Nishiyama
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shin Etsu Chemical Co Ltd
Original Assignee
Shin Etsu Chemical Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=15776006&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE210917(T1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Shin Etsu Chemical Co Ltd filed Critical Shin Etsu Chemical Co Ltd
Publication of DE210917T1 publication Critical patent/DE210917T1/de
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B11/00—Preparation of cellulose ethers
    • C08B11/20—Post-etherification treatments of chemical or physical type, e.g. mixed etherification in two steps, including purification
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00—Medicinal preparations characterised by special physical form
    • A61K9/20—Pills, tablets, discs, rods
    • A61K9/28—Dragees; Coated pills or tablets, e.g. with film or compression coating
    • A61K9/2806—Coating materials
    • A61K9/2833—Organic macromolecular compounds
    • A61K9/286—Polysaccharides, e.g. gums; Cyclodextrin
    • A61K9/2866—Cellulose; Cellulose derivatives, e.g. hydroxypropyl methylcellulose

Landscapes

  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Medicinal Chemistry (AREA)
  • Animal Behavior & Ethology (AREA)
  • Epidemiology (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Biochemistry (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
DE1986401621 1985-07-24 1986-07-21 Verfahren zur herstellung eines cellulose-ethers mit einem verminderten polymerisationsgrad. Pending DE210917T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16354985A JPS6225101A (ja) 1985-07-24 1985-07-24 低重合度セルロ−スエ−テルの製造方法

Publications (1)

Publication Number Publication Date
DE210917T1 true DE210917T1 (de) 1988-02-04

Family

ID=15776006

Family Applications (2)

Application Number Title Priority Date Filing Date
DE1986401621 Pending DE210917T1 (de) 1985-07-24 1986-07-21 Verfahren zur herstellung eines cellulose-ethers mit einem verminderten polymerisationsgrad.
DE8686401621T Revoked DE3675993D1 (de) 1985-07-24 1986-07-21 Verfahren zur herstellung eines cellulose-ethers mit einem verminderten polymerisationsgrad.

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE8686401621T Revoked DE3675993D1 (de) 1985-07-24 1986-07-21 Verfahren zur herstellung eines cellulose-ethers mit einem verminderten polymerisationsgrad.

Country Status (4)

Country Link
EP (1) EP0210917B1 (OSRAM)
JP (1) JPS6225101A (OSRAM)
AU (1) AU583139B2 (OSRAM)
DE (2) DE210917T1 (OSRAM)

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KR102108813B1 (ko) 2012-08-24 2020-05-12 다우 글로벌 테크놀로지스 엘엘씨 지방족 카복실산의 존재하의 셀룰로스 에테르의 에스테르의 제조 방법
JP6224711B2 (ja) 2012-08-24 2017-11-01 ダウ グローバル テクノロジーズ エルエルシー 部分架橋結合型エステル化セルロースエーテル
CN104797604B (zh) 2012-08-24 2018-03-06 陶氏环球技术有限责任公司 在碱金属羧酸盐和脂族羧酸的存在下制备酯化纤维素醚的方法
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JP6321779B2 (ja) 2013-04-12 2018-05-09 ダウ グローバル テクノロジーズ エルエルシー 嗜好性が改善された水溶性多糖類
KR102347262B1 (ko) 2013-04-12 2022-01-06 뉴트리션 ＆ 바이오사이언시즈 유에스에이 1, 엘엘씨 메틸셀룰로스 수용액의 제조 방법
US9820498B2 (en) 2013-04-12 2017-11-21 Dow Global Technologies Llc Process for preparing an aqueous solution of saccharides and methylcellulose
KR20160006788A (ko) 2013-05-14 2016-01-19 다우 글로벌 테크놀로지스 엘엘씨 디카복실산으로 에스테르화된 셀룰로스 에테르
MX375728B (es) 2014-01-16 2025-03-06 Nutrition & Biosciences Usa 1 Llc Composición cerámica moldeable con calor que contiene una hidroxipropilmetilcelulosa.
EP3094656B1 (en) 2014-01-16 2019-07-17 Dow Global Technologies LLC Support materials for 3d printing
EP3094675B1 (en) 2014-01-16 2020-12-23 Dow Global Technologies LLC Recovery of additive manufacturing support materials
KR102362913B1 (ko) 2014-02-20 2022-02-17 뉴트리션 ＆ 바이오사이언시즈 유에스에이 1, 엘엘씨 높은 분자량 및 균질성의 신규한 에스테르화된 셀룰로오스 에테르
EP3186285B1 (en) 2014-08-27 2022-04-13 Nutrition & Biosciences USA 1, LLC Esterified cellulose ethers of low acetone-insoluble content
EP3241873B1 (en) 2014-09-10 2018-11-14 PPG Industries Ohio, Inc. Aqueous separation liquid and process for removing paint overspray from a paint spray booth
CN107074979B (zh) 2014-10-31 2019-07-19 陶氏环球技术有限责任公司 用于产生乙酸纤维素醚丁二酸酯的方法
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JP2019529592A (ja) 2016-08-23 2019-10-17 ダウ グローバル テクノロジーズ エルエルシー セルロースエーテルアセテートフタレート
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KR102373750B1 (ko) * 2016-10-06 2022-03-15 신에쓰 가가꾸 고교 가부시끼가이샤 저중합도 셀룰로오스 에테르의 제조 방법
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JP7535519B2 (ja) 2018-12-18 2024-08-16 ニュートリション アンド バイオサイエンシズ ユーエスエー １，リミティド ライアビリティ カンパニー メチルセルロースを含む徐放性組成物
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US1679943A (en) * 1925-12-21 1928-08-07 Eastman Kodak Co Process for reducing the viscosity characteristics of cellulose ethers and products thereof
US1943461A (en) * 1930-04-16 1934-01-16 Ici Ltd Cellulose ether and method of making same
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Also Published As

Publication number Publication date
JPS6225101A (ja) 1987-02-03
AU583139B2 (en) 1989-04-20
EP0210917A2 (en) 1987-02-04
EP0210917B1 (en) 1990-12-05
EP0210917A3 (en) 1987-09-02
DE3675993D1 (de) 1991-01-17
AU6039086A (en) 1987-01-29
JPH0476361B2 (OSRAM) 1992-12-03

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