GB909039A - Improvements in and relating to the production of cellulose methyl ethers - Google Patents

Improvements in and relating to the production of cellulose methyl ethers

Info

Publication number
GB909039A
GB909039A GB1713260A GB1713260A GB909039A GB 909039 A GB909039 A GB 909039A GB 1713260 A GB1713260 A GB 1713260A GB 1713260 A GB1713260 A GB 1713260A GB 909039 A GB909039 A GB 909039A
Authority
GB
United Kingdom
Prior art keywords
cellulose
produced
methyl chloride
ether
methylated
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.)
Expired
Application number
GB1713260A
Inventor
Eric Wilfred Hitchin
Harold Bates
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.)
Acordis UK Ltd
Original Assignee
British Celanese 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
Application filed by British Celanese Ltd filed Critical British Celanese Ltd
Priority to GB1713260A priority Critical patent/GB909039A/en
Publication of GB909039A publication Critical patent/GB909039A/en
Expired 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
    • C08B11/02—Alkyl or cycloalkyl ethers

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)

Abstract

<PICT:0909039/IV(a)/1> Cellulose is treated with aqueous caustic soda of 40-55% w/w concentration at temperatures within the range 35 DEG -56 DEG C., the actual conditions used lying within the area marked on the graph. The alkali cellulose so produced is methylated by treatment with methyl chloride containing an inert diluent in which methyl chloride is soluble, such as an ether. Particularly good results are obtained when the methyl chloride contains 45-90% of its weight of dimethyl ether. Methylation, under these conditions, is uniform and the cellulose ether so produced has similar viscosities in water and in organic solvents. In the examples, dry cellulose sheet is methylated to a methoxyl content of 26,3-31,7%. Hydroxyethyl and hydroxypropyl methyl ethers may be produced by additionally reacting the alkali cellulose with ethylene or propylene oxide.
GB1713260A 1960-05-16 1960-05-16 Improvements in and relating to the production of cellulose methyl ethers Expired GB909039A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1713260A GB909039A (en) 1960-05-16 1960-05-16 Improvements in and relating to the production of cellulose methyl ethers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1713260A GB909039A (en) 1960-05-16 1960-05-16 Improvements in and relating to the production of cellulose methyl ethers

Publications (1)

Publication Number Publication Date
GB909039A true GB909039A (en) 1962-10-24

Family

ID=10089854

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1713260A Expired GB909039A (en) 1960-05-16 1960-05-16 Improvements in and relating to the production of cellulose methyl ethers

Country Status (1)

Country Link
GB (1) GB909039A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2635403A1 (en) * 1976-08-06 1978-02-09 Fritz Loedige METHOD OF PREPARING CELLULOSE ETHERS
US4650863A (en) * 1984-05-15 1987-03-17 Hoechst Aktiengesellschaft Preparation of water-soluble mixed cellulose ethers
EP1694710B1 (en) 2003-12-16 2016-04-06 Samsung Fine Chemicals Co., Ltd. Method for preparation of fine powdered cellulose ethers
EP2998340B1 (en) 2014-09-22 2019-07-17 Shin-Etsu Chemical Co., Ltd. Method for continuously producing cellulose ether

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2635403A1 (en) * 1976-08-06 1978-02-09 Fritz Loedige METHOD OF PREPARING CELLULOSE ETHERS
US4650863A (en) * 1984-05-15 1987-03-17 Hoechst Aktiengesellschaft Preparation of water-soluble mixed cellulose ethers
EP1694710B1 (en) 2003-12-16 2016-04-06 Samsung Fine Chemicals Co., Ltd. Method for preparation of fine powdered cellulose ethers
EP2998340B1 (en) 2014-09-22 2019-07-17 Shin-Etsu Chemical Co., Ltd. Method for continuously producing cellulose ether

Similar Documents

Publication Publication Date Title
GB1028724A (en) Improvements in or relating to process of preparing hydroxypropyl cellulose
GB1251019A (en)
GB1139519A (en) Hydroxypropyl methyl cellulose ethers and a process for preparing the same
BR8206918A (en) PROCESS FOR OBTAINING CELLULOSE ETHERS
GB1139637A (en) Process for the manufacture of low viscosity water-soluble cellulose ethers
GB956247A (en) Improvements in or relating to the manufacture of cellulose ethers
GB955482A (en) Surfactants
GB909039A (en) Improvements in and relating to the production of cellulose methyl ethers
GB637134A (en) Improvements in or relating to the manufacture of cellulose ethers
GB676891A (en) Process for the preparation of ª‡-glycols and their derivatives
GB672459A (en) Improvements in or relating to alkali metal pentachlorophenate pellets and process for making the same
GB644791A (en) A process for removing coating compositions from substrata coated therewith, and the manufacture of preparations therefor
Katsuura et al. On the Manufacture of Cellulose Glycollic Acid (CMC) Studies on High-Molecular Electrolyte XIX
GB1038757A (en) Improvements in or relating to a process for preparing hydroxyethyl cellulose
NL254944A (en)
GB798448A (en) Cold-sealing water-soluble thermoplastic cellulose ether composition
GB737363A (en) Method for the production of water and/or alkali soluble cellulose derivatives
GB796308A (en) Water-soluble thermoplastic cellulose ether composition
GB833174A (en) A tri-(hydroxyethyl) ether of rutin and process for the production thereof
GB730961A (en) Improved process for preparing sodium carboxymethylcellulose low in salt content
GB675450A (en) Preparation of thiocarbamyl thiazyl monosulfides
GB833834A (en) Water-soluble thermoplastic cellulose ethers
GB1074122A (en) Stable solutions of starch and other polysaccharides in dimethyl sulfoxide
GB343147A (en) Process for the manufacture of soluble ethers from vegetable materials
GB747048A (en) Improvements in the production of 2.5-dimercapto-1.3.4- thiadiazole