ATE141617T1 - Kontinuierliche hydrolyse von zelluloseacetat - Google Patents

Kontinuierliche hydrolyse von zelluloseacetat

Info

Publication number
ATE141617T1
ATE141617T1 AT93903555T AT93903555T ATE141617T1 AT E141617 T1 ATE141617 T1 AT E141617T1 AT 93903555 T AT93903555 T AT 93903555T AT 93903555 T AT93903555 T AT 93903555T AT E141617 T1 ATE141617 T1 AT E141617T1
Authority
AT
Austria
Prior art keywords
range
cellulose acetate
residence time
continuous hydrolysis
time distribution
Prior art date
Application number
AT93903555T
Other languages
English (en)
Inventor
Mark Keven Cox
Tim Joseph Frederick
Original Assignee
Eastman Chem 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 Chem Co filed Critical Eastman Chem Co
Application granted granted Critical
Publication of ATE141617T1 publication Critical patent/ATE141617T1/de

Links

Classifications

    • 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
    • C08B3/24—Hydrolysis or ripening
    • 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
    • C08B3/06—Cellulose acetate, e.g. mono-acetate, di-acetate or tri-acetate

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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
AT93903555T 1992-01-13 1993-01-06 Kontinuierliche hydrolyse von zelluloseacetat ATE141617T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US82074292A 1992-01-13 1992-01-13

Publications (1)

Publication Number Publication Date
ATE141617T1 true ATE141617T1 (de) 1996-09-15

Family

ID=25231606

Family Applications (1)

Application Number Title Priority Date Filing Date
AT93903555T ATE141617T1 (de) 1992-01-13 1993-01-06 Kontinuierliche hydrolyse von zelluloseacetat

Country Status (14)

Country Link
US (1) US5364935A (de)
EP (1) EP0621876B1 (de)
JP (1) JPH07506852A (de)
KR (1) KR940703861A (de)
CN (1) CN1039333C (de)
AT (1) ATE141617T1 (de)
AU (1) AU661247B2 (de)
BR (1) BR9305732A (de)
CA (1) CA2125881C (de)
DE (1) DE69304191T2 (de)
MX (1) MX9300121A (de)
MY (1) MY106937A (de)
RU (1) RU94038306A (de)
WO (1) WO1993014128A1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999045854A1 (en) * 1998-03-12 1999-09-16 Surgical Laser Technologies, Inc. Conjunctive electrosurgical device
US20100175691A1 (en) * 2009-01-15 2010-07-15 Celanese Acetate Llc Process for recycling cellulose acetate ester waste
CN102939323B (zh) 2010-05-12 2016-03-30 国际壳牌研究有限公司 液化纤维素材料的方法
US20110302824A1 (en) * 2010-05-12 2011-12-15 Shell Oil Company Process for liquefying a cellulosic material

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA530164A (en) * 1956-09-11 H. Groombridge Walter Production of cellulose esters
GB292398A (en) * 1927-07-20 1928-06-21 Naamlooze Vennootschap Nl Kuns Process for the production of partially hydrolysed cellulose acetates and products such as threads, films, ribbons, plastic masses, lacquers, varnishes and the like produced by said process
US1961251A (en) * 1928-08-21 1934-06-05 Du Pont Reduction of viscosity of cellulose acetate
US2126489A (en) * 1936-05-07 1938-08-09 Eastman Kodak Co Process of lowering the viscosity of hydrolyzed cellulose esters
US2790796A (en) * 1952-10-31 1957-04-30 Rhodiaceta Continuous process and apparatus for the hydrolysis of esters in homogeneous phase and analogous reactions
BE785656A (fr) * 1971-06-30 1973-01-02 Celanese Corp Procede d'hydrolyse de la cellulose esterifiee a temperature elevee
US4016353A (en) * 1975-04-14 1977-04-05 Crown Zellerbach Corporation Process for producing organic acid esters of cellulose
JPS60155245A (ja) * 1984-01-24 1985-08-15 Daicel Chem Ind Ltd 酢酸セルロ−ス多孔質球状粒子及びその製造方法
DE69120360T2 (de) * 1990-04-16 1996-10-31 Eastman Chemical Co., Kingsport, Tenn. Verfahren zur herstellung von celluloseestern unter verwendung von carbonsäuren
US5214137A (en) * 1991-02-08 1993-05-25 Eastman Kodak Company Preparation of cellulose diacetate by recycling processed film

Also Published As

Publication number Publication date
CN1039333C (zh) 1998-07-29
AU3477693A (en) 1993-08-03
KR940703861A (ko) 1994-12-12
WO1993014128A1 (en) 1993-07-22
CA2125881C (en) 1997-12-09
CN1074449A (zh) 1993-07-21
DE69304191D1 (de) 1996-09-26
US5364935A (en) 1994-11-15
MY106937A (en) 1995-08-30
AU661247B2 (en) 1995-07-13
CA2125881A1 (en) 1993-07-22
MX9300121A (es) 1993-07-01
EP0621876B1 (de) 1996-08-21
JPH07506852A (ja) 1995-07-27
BR9305732A (pt) 1997-01-28
RU94038306A (ru) 1996-05-27
DE69304191T2 (de) 1997-01-23
EP0621876A1 (de) 1994-11-02

Similar Documents

Publication Publication Date Title
ITMI920162A1 (it) Metodo per mantenere l'attivita' di enzimi proteolitici modificati con polietilenglicole
BE895080A (fr) Procede de preparation de derives de 3-hydroxy-ml-236b connus comme m-4 et m-4'
ZA822867B (en) Process and installation for obtaining ethanol by the continuous acid hydrolysis of cellulosic materials
NO874251L (no) Kryssbundete estere av hyaluronsyre.
NO307751B1 (no) Fremgangsmõte for õ redusere tilbøyeligheten til agglomerering av hydrater i produksjonsavløp
FI944336A0 (fi) Ihon pH-arvon mukainen jäähdytinpuhdistuspala ja menetelmä sen valmistamiseksi
AU4590993A (en) Process and arrangement for the supply of water to a pond
NZ324588A (en) Purified xylanase, derived from acidothermus cellulolyticus, having a pH optimum of 3.6 to 4.2 and a Mr of 50-55kD
ATE157003T1 (de) Verwendung von l-carnitin- und acyl-l- cernitinestern mit hydroxysäuren zur herstellung pharmazeutischer zusammensetzungen zur behandlung der dermatosen
FR2618451B1 (fr) Procede et installation de vinification et utilisations s'y rapportant
FR2318925A1 (fr) Procede et composition pour l'hydrolyse enzymatique rapide de triglycerides
AU3528195A (en) Pharmaceutical control of inflammation
LTIP482A (en) Enzyme products for use in the improvement of feed value and conservation of fibrous crops
DK0654046T3 (da) Selvtværbundet gellangummi
DE69304191D1 (de) Kontinuierliche hydrolyse von zelluloseacetat
FI945695A0 (fi) Menetelmä sellukuitujen valmistamiseksi, joiden fibrilloitumistaipumus on vähentynyt
IL95412A0 (en) Pharmaceutical compositions containing 5-methyl-isoxazole-4-carboxylic acid anilide derivatives and 2-hydroxy-ethylidene-cyano acetic acid anilide derivatives
BE889728A (fr) Procede de production de l'enzyme cholesterase et d'hydrolyse des esters de cholesterol d'acides gras en utilisant l'enzyme elle-meme
EP0143393A3 (de) Verwendung ultrareiner Hyaluronsäure zur Verbesserung der Funktion von tierischen Gelenken
FR2687667B1 (fr) Esters d'acides carboxyliques d'hydroxyphenylalcanols comme stabilisants.
FR2742055B1 (fr) Melange d'extraits de plantes et leurs utilisations, notamment pour le traitement local symptomatique des surcharges adipeuses sous-cutanees localisees
FR2573090B1 (fr) Production continue d'acide acetique et de vinaigre par voie microbiologique et installation de mise en oeuvre
FR2603303B1 (fr) Procede de preparation de la carnitine par hydrolyse du carnitinamide, l'enzyme nouvelle utilisee dans ce procede et sa preparation
BE893419A (fr) Production d'acides carboxyliques et d'esters
NO944336D0 (no) Enzymatisk fremgangsmåte for fremstilling av S-6-metoksy- -metyl-2-naftaleneddiksyre

Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties