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BR8002569A - Processo para a reducao da viscosidade de eteres de celulose, e sua aplicacao - Google Patents

Processo para a reducao da viscosidade de eteres de celulose, e sua aplicacao

Info

Publication number
BR8002569A
BR8002569A BR8002569A BR8002569A BR8002569A BR 8002569 A BR8002569 A BR 8002569A BR 8002569 A BR8002569 A BR 8002569A BR 8002569 A BR8002569 A BR 8002569A BR 8002569 A BR8002569 A BR 8002569A
Authority
BR
Brazil
Prior art keywords
viscosity
reducing
application
cellulose ethers
ethers
Prior art date
Application number
BR8002569A
Other languages
English (en)
Inventor
A Holst
E Perplies
Original Assignee
Hoechst Ag
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
Application filed by Hoechst Ag filed Critical Hoechst Ag
Publication of BR8002569A publication Critical patent/BR8002569A/pt

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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biochemistry (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
BR8002569A 1979-04-27 1980-04-25 Processo para a reducao da viscosidade de eteres de celulose, e sua aplicacao BR8002569A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19792917104 DE2917104A1 (de) 1979-04-27 1979-04-27 Verfahren zur viskositaetserniedrigung von celluloseethern durch ozon und seine verwendung

Publications (1)

Publication Number Publication Date
BR8002569A true BR8002569A (pt) 1980-12-09

Family

ID=6069424

Family Applications (1)

Application Number Title Priority Date Filing Date
BR8002569A BR8002569A (pt) 1979-04-27 1980-04-25 Processo para a reducao da viscosidade de eteres de celulose, e sua aplicacao

Country Status (8)

Country Link
US (1) US4316982A (pt)
EP (1) EP0018547B1 (pt)
JP (1) JPS55145701A (pt)
BR (1) BR8002569A (pt)
CA (1) CA1127635A (pt)
DD (1) DD150063A5 (pt)
DE (2) DE2917104A1 (pt)
FI (1) FI64604C (pt)

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CN107074980A (zh) 2014-10-31 2017-08-18 陶氏环球技术有限责任公司 制备纤维素醚的酯的方法
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US20180105608A1 (en) * 2015-05-15 2018-04-19 Dow Global Technologies Llc Process for producing esterified cellulose ethers of very high molecular weight and low viscosity
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WO2021118917A1 (en) 2019-12-09 2021-06-17 Nutrition & Biosciences Usa 1, Llc Composition comprising a highly substituted hydroxypropyl methylcellulose and a sugar alcohol
CN117529522A (zh) 2021-04-09 2024-02-06 营养与生物科学美国1有限责任公司 具有高粉末溶解温度的甲基纤维素
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DE667864C (de) 1934-11-10 1938-11-21 Kalle & Co Akt Ges Verfahren zur Viscositaetserniedrigung von waessrigen Loesungen von Celluloseaethern
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Also Published As

Publication number Publication date
FI64604B (fi) 1983-08-31
DE3061196D1 (en) 1983-01-05
US4316982A (en) 1982-02-23
EP0018547A1 (de) 1980-11-12
FI801326A (fi) 1980-10-28
JPS55145701A (en) 1980-11-13
FI64604C (fi) 1989-01-04
DE2917104A1 (de) 1980-11-06
EP0018547B1 (de) 1982-12-01
DD150063A5 (de) 1981-08-12
CA1127635A (en) 1982-07-13

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