NL7506309A - Werkwijze ter bereiding van hydroxypropylcellu- lose en gemengde etherderivaten. - Google Patents

Werkwijze ter bereiding van hydroxypropylcellu- lose en gemengde etherderivaten.

Info

Publication number
NL7506309A
NL7506309A NL7506309A NL7506309A NL7506309A NL 7506309 A NL7506309 A NL 7506309A NL 7506309 A NL7506309 A NL 7506309A NL 7506309 A NL7506309 A NL 7506309A NL 7506309 A NL7506309 A NL 7506309A
Authority
NL
Netherlands
Prior art keywords
hydroxypropylcellulose
preparing
ether derivatives
mixed ether
mixed
Prior art date
Application number
NL7506309A
Other languages
English (en)
Original Assignee
Novacel S A Soc
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
Priority claimed from FR7418726A external-priority patent/FR2273012A1/fr
Priority claimed from FR7510220A external-priority patent/FR2306215A2/fr
Application filed by Novacel S A Soc filed Critical Novacel S A Soc
Publication of NL7506309A publication Critical patent/NL7506309A/nl

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
    • C08B11/04—Alkyl or cycloalkyl ethers with substituted hydrocarbon radicals
    • C08B11/08—Alkyl or cycloalkyl ethers with substituted hydrocarbon radicals with hydroxylated hydrocarbon radicals; Esters, ethers, or acetals thereof
    • 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
    • C08B11/193—Mixed ethers, i.e. ethers with two or more different etherifying groups

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)
NL7506309A 1974-05-30 1975-05-28 Werkwijze ter bereiding van hydroxypropylcellu- lose en gemengde etherderivaten. NL7506309A (nl)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7418726A FR2273012A1 (en) 1974-05-30 1974-05-30 Hydroxy-propyl cellulose prepn from cellulose - by alkalising and etherifying with diluent addn., giving high yield
FR7510220A FR2306215A2 (fr) 1975-04-02 1975-04-02 Procede de preparation d'hydroxypropylcellulose

Publications (1)

Publication Number Publication Date
NL7506309A true NL7506309A (nl) 1975-12-02

Family

ID=26218355

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7506309A NL7506309A (nl) 1974-05-30 1975-05-28 Werkwijze ter bereiding van hydroxypropylcellu- lose en gemengde etherderivaten.

Country Status (3)

Country Link
DE (1) DE2523272A1 (nl)
GB (1) GB1490160A (nl)
NL (1) NL7506309A (nl)

Also Published As

Publication number Publication date
GB1490160A (en) 1977-10-26
DE2523272A1 (de) 1975-12-18

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Legal Events

Date Code Title Description
BA A request for search or an international-type search has been filed
BA A request for search or an international-type search has been filed
BB A search report has been drawn up
BC A request for examination has been filed
BB A search report has been drawn up
BC A request for examination has been filed
A85 Still pending on 85-01-01
BV The patent application has lapsed
BV The patent application has lapsed