DE1770890C3 - - Google Patents

Info

Publication number
DE1770890C3
DE1770890C3 DE19681770890 DE1770890A DE1770890C3 DE 1770890 C3 DE1770890 C3 DE 1770890C3 DE 19681770890 DE19681770890 DE 19681770890 DE 1770890 A DE1770890 A DE 1770890A DE 1770890 C3 DE1770890 C3 DE 1770890C3
Authority
DE
Germany
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
DE19681770890
Other languages
German (de)
Other versions
DE1770890A1 (de
DE1770890B2 (de
Inventor
Brazelton Fulkerson
John Warren Mench
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.)
Eastman Kodak Co
Original Assignee
Eastman Kodak Co
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 Eastman Kodak Co filed Critical Eastman Kodak Co
Publication of DE1770890A1 publication Critical patent/DE1770890A1/de
Publication of DE1770890B2 publication Critical patent/DE1770890B2/de
Application granted granted Critical
Publication of DE1770890C3 publication Critical patent/DE1770890C3/de
Granted legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B15/00—Preparation of other cellulose derivatives or modified cellulose, e.g. complexes
    • C08B15/05—Derivatives containing elements other than carbon, hydrogen, oxygen, halogens or sulfur
    • C08B15/06—Derivatives containing elements other than carbon, hydrogen, oxygen, halogens or sulfur containing nitrogen, e.g. carbamates
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B3/00—Preparation of cellulose esters of organic acids
    • C08B3/22—Post-esterification treatments, including purification
    • C08B3/30—Stabilising

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Biochemistry (AREA)
  • Organic Chemistry (AREA)
  • Epidemiology (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
DE19681770890 1967-07-17 1968-07-16 Stabilisierte, stickstoffhaltige cellulosederivate Granted DE1770890B2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US65364667A 1967-07-17 1967-07-17

Publications (3)

Publication Number Publication Date
DE1770890A1 DE1770890A1 (de) 1972-02-10
DE1770890B2 DE1770890B2 (de) 1973-04-26
DE1770890C3 true DE1770890C3 (enrdf_load_stackoverflow) 1973-11-22

Family

ID=24621741

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19681770890 Granted DE1770890B2 (de) 1967-07-17 1968-07-16 Stabilisierte, stickstoffhaltige cellulosederivate

Country Status (4)

Country Link
BE (1) BE717719A (enrdf_load_stackoverflow)
DE (1) DE1770890B2 (enrdf_load_stackoverflow)
FR (1) FR1573508A (enrdf_load_stackoverflow)
GB (1) GB1160210A (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3562806A (en) * 1968-09-10 1971-02-09 Eastman Kodak Co Rumen stable medicament and/or nutrient compositions
DE19619079A1 (de) * 1996-05-13 1997-11-20 Thueringisches Inst Textil Verfahren zum Stabilisieren von Celluloseethern und/oder Celluloseetherestern

Also Published As

Publication number Publication date
FR1573508A (enrdf_load_stackoverflow) 1969-05-27
GB1160210A (en) 1969-08-06
DE1770890A1 (de) 1972-02-10
BE717719A (enrdf_load_stackoverflow) 1968-12-16
DE1770890B2 (de) 1973-04-26

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Legal Events

Date Code Title Description
C3 Grant after two publication steps (3rd publication)