CA965783A - Process for the sulfation of cellulosic ethers - Google Patents

Process for the sulfation of cellulosic ethers

Info

Publication number
CA965783A
CA965783A CA157,509A CA157509A CA965783A CA 965783 A CA965783 A CA 965783A CA 157509 A CA157509 A CA 157509A CA 965783 A CA965783 A CA 965783A
Authority
CA
Canada
Prior art keywords
sulfation
cellulosic ethers
cellulosic
ethers
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
CA157,509A
Other languages
English (en)
Other versions
CA157509S (en
Inventor
Deger Tunc
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.)
Johnson and Johnson
Original Assignee
Johnson and Johnson
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 Johnson and Johnson filed Critical Johnson and Johnson
Application granted granted Critical
Publication of CA965783A publication Critical patent/CA965783A/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
    • C08B11/20—Post-etherification treatments of chemical or physical type, e.g. mixed etherification in two steps, including purification
    • C08B11/22—Isolation
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B13/00—Preparation of cellulose ether-esters

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)
CA157,509A 1972-03-07 1972-11-24 Process for the sulfation of cellulosic ethers Expired CA965783A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US23237172A 1972-03-07 1972-03-07

Publications (1)

Publication Number Publication Date
CA965783A true CA965783A (en) 1975-04-08

Family

ID=22872831

Family Applications (1)

Application Number Title Priority Date Filing Date
CA157,509A Expired CA965783A (en) 1972-03-07 1972-11-24 Process for the sulfation of cellulosic ethers

Country Status (8)

Country Link
US (1) US3709877A (es)
AR (1) AR192687A1 (es)
AU (1) AU4990672A (es)
BR (1) BR7300610D0 (es)
CA (1) CA965783A (es)
GB (1) GB1407064A (es)
IE (1) IE36935B1 (es)
ZA (1) ZA728413B (es)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4035569A (en) * 1970-05-25 1977-07-12 Schweiger Richard Georg Preparation of cellulose nitrite
US4143226A (en) * 1970-05-25 1979-03-06 Schweiger Richard Georg Process for preparing a sulfate ester of a polyhydroxy polymer
US3804092A (en) * 1973-01-15 1974-04-16 Johnson & Johnson Water dispersible nonwoven fabric
US3872060A (en) * 1973-10-04 1975-03-18 Tee Pak Inc Method of sulfoalkylating polyhydric alcohols and the corresponding product
US4177345A (en) * 1974-07-10 1979-12-04 Schweiger Richard Georg Process for preparing a sulfate ester of a polyhydroxy polymer
US4480091A (en) * 1983-10-31 1984-10-30 Eastman Kodak Company Process for preparing cellulose sulfate esters
GB2317182B (en) * 1996-09-11 2000-11-01 Johnson & Johnson Medical Sulfated polysaccharides and uses thereof in medical treatment
DE102013204817B4 (de) * 2013-03-19 2017-08-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Verfahren zur Herstellung von sulfatierten Celluloseethern sowie deren Verwendung zur Herstellung von Mikrokapseln

Also Published As

Publication number Publication date
US3709877A (en) 1973-01-09
GB1407064A (en) 1975-09-24
BR7300610D0 (pt) 1974-05-16
AU4990672A (en) 1974-06-13
IE36935L (en) 1973-09-07
AR192687A1 (es) 1973-02-28
IE36935B1 (en) 1977-03-30
ZA728413B (en) 1974-06-26

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