NL7706458A - Werkwijze voor het depolymeriseren van cellulose- -derivaten. - Google Patents
Werkwijze voor het depolymeriseren van cellulose- -derivaten.Info
- Publication number
- NL7706458A NL7706458A NL7706458A NL7706458A NL7706458A NL 7706458 A NL7706458 A NL 7706458A NL 7706458 A NL7706458 A NL 7706458A NL 7706458 A NL7706458 A NL 7706458A NL 7706458 A NL7706458 A NL 7706458A
- Authority
- NL
- Netherlands
- Prior art keywords
- procedure
- cellulose derivatives
- depolymerizing cellulose
- depolymerizing
- derivatives
- Prior art date
Links
- 229920002678 cellulose Polymers 0.000 title 1
- 239000001913 cellulose Substances 0.000 title 1
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
- 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
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)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/695,876 US4061859A (en) | 1976-06-14 | 1976-06-14 | Viscosity reduction of cellulose derivatives |
Publications (1)
Publication Number | Publication Date |
---|---|
NL7706458A true NL7706458A (nl) | 1977-12-16 |
Family
ID=24794800
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL7706458A NL7706458A (nl) | 1976-06-14 | 1977-06-13 | Werkwijze voor het depolymeriseren van cellulose- -derivaten. |
Country Status (8)
Country | Link |
---|---|
US (1) | US4061859A (nl) |
JP (1) | JPS609041B2 (nl) |
BE (1) | BE855674A (nl) |
BR (1) | BR7703824A (nl) |
CA (1) | CA1065312A (nl) |
DE (1) | DE2726780C2 (nl) |
GB (1) | GB1578575A (nl) |
NL (1) | NL7706458A (nl) |
Families Citing this family (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USRE31323E (en) * | 1978-05-17 | 1983-07-26 | International Playtex, Inc. | Preparation of water-insoluble carboxymethyl cellulose absorbents |
US4200737A (en) * | 1978-05-17 | 1980-04-29 | International Playtex, Inc. | Preparation of water-insoluble carboxymethyl cellulose absorbents |
DE2917104A1 (de) * | 1979-04-27 | 1980-11-06 | Hoechst Ag | Verfahren zur viskositaetserniedrigung von celluloseethern durch ozon und seine verwendung |
JPS6225101A (ja) * | 1985-07-24 | 1987-02-03 | Shin Etsu Chem Co Ltd | 低重合度セルロ−スエ−テルの製造方法 |
DE3530857A1 (de) * | 1985-08-29 | 1987-03-05 | Hoechst Ag | Verfahren zur herstellung von niedrigviskosen celluloseethern |
US6000928A (en) * | 1997-04-03 | 1999-12-14 | Technophar Equipment & Service Limited | Capsule making machine having improved pin bars and air flow characteristics |
US5945136A (en) * | 1997-04-03 | 1999-08-31 | Technophar Equipment & Service Limited | Heating elevator for capsule making machine |
US6261218B1 (en) * | 1998-12-01 | 2001-07-17 | The Dow Chemical Company | Process and apparatus for making low molecular weight cellulose ethers |
US6306333B1 (en) * | 1999-06-24 | 2001-10-23 | The Dow Chemical Company | Process for making cellulose ethers having reduced yellowing and discoloration |
DE19941893A1 (de) * | 1999-09-03 | 2001-03-08 | Clariant Gmbh | Niederviskose, heisswasser-flockbare Celluloseether, Verfahren zu deren Herstellung durch Depolymerisation sowie deren Verwendung |
JP4380069B2 (ja) * | 2001-02-08 | 2009-12-09 | コニカミノルタホールディングス株式会社 | 感熱転写記録材料、感熱転写記録方法、インク、トナー及びカラーフィルター |
US20050137094A1 (en) * | 2001-06-11 | 2005-06-23 | Halliburton Energy Sevices, Inc. | Subterranean formation treatment fluids and methods of using such fluids |
US6488091B1 (en) * | 2001-06-11 | 2002-12-03 | Halliburton Energy Services, Inc. | Subterranean formation treating fluid concentrates, treating fluids and methods |
US7001872B2 (en) * | 2001-06-11 | 2006-02-21 | Halliburton Energy Services, Inc. | Subterranean formation treating fluid and methods of fracturing subterranean formations |
DE10141680B4 (de) * | 2001-08-25 | 2004-02-26 | Clariant Gmbh | Verfahren zur Herstellung niederviskoser Celluloseether durch sauer-oxidativen Abbau von gemahlenen und getrockneten Celluloseethern |
KR100461565B1 (ko) * | 2001-09-22 | 2004-12-14 | 삼성정밀화학 주식회사 | 저점도 히드록시프로필메틸 셀룰로오스의 제조방법 |
US8865432B2 (en) * | 2004-02-26 | 2014-10-21 | Shin-Etsu Chemical Co., Ltd. | Method for preparing cellulose derivatives having solubility improved |
WO2005118649A1 (en) * | 2004-05-26 | 2005-12-15 | Dow Global Technologies Inc. | Production of low molecular weight ethylcellulose |
MX2008015896A (es) * | 2006-06-14 | 2009-01-12 | Dow Global Technologies Inc | Proceso para reducir el peso molecular promedio de eteres de celulosa. |
US9174879B2 (en) * | 2007-11-30 | 2015-11-03 | Corning Incorporated | Ceramic precursor batch composition and method of increasing ceramic precursor batch extrusion rate |
BR112014031471B1 (pt) * | 2012-07-17 | 2020-12-01 | Dow Global Technologies Llc | composição líquida, uso da composição líquida, dispersão sólida, processo para produzir a dispersão sólida e processo para revestir uma forma de dosagem |
KR101960546B1 (ko) * | 2012-12-07 | 2019-03-21 | 롯데정밀화학 주식회사 | 셀룰로오스 에테르의 점도 경시변화 방지방법 |
KR101586136B1 (ko) * | 2013-01-09 | 2016-01-15 | 신에쓰 가가꾸 고교 가부시끼가이샤 | 저중합도 셀룰로오스에테르의 제조 방법 및 이에 따라 제조된 셀룰로오스에테르 |
US9926385B2 (en) | 2013-08-12 | 2018-03-27 | Shin-Etsu Chemical Co., Ltd. | Method for producing water-soluble cellulose ether having low degree of polymerization and method for producing film coating composition comprising same |
KR102373750B1 (ko) | 2016-10-06 | 2022-03-15 | 신에쓰 가가꾸 고교 가부시끼가이샤 | 저중합도 셀룰로오스 에테르의 제조 방법 |
CN113501971B (zh) * | 2021-07-06 | 2024-02-23 | 湖州展望天明药业有限公司 | 一种低聚合度水溶性纤维素醚制造方法 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1600159A (en) * | 1924-08-15 | 1926-09-14 | Zdanowich Joe Olgierd | Making cellulose acetate directly spinnable from reaction mixtures in commercial form |
US1864554A (en) * | 1928-06-06 | 1932-06-28 | Du Pont | Process for reducing the viscosity of cellulose ethers |
US1946645A (en) * | 1929-06-24 | 1934-02-13 | Eastman Kodak Co | Method for the production of low viscosity cellulose derivatives |
US1878988A (en) * | 1929-07-15 | 1932-09-20 | Eastman Kodak Co | Process for the manufacture of cellulose acetate |
US1904406A (en) * | 1930-07-02 | 1933-04-18 | Du Pont | Method of reducing the solution viscosity of cellulose |
US2159377A (en) * | 1938-07-19 | 1939-05-23 | Dow Chemical Co | Making low viscosity cellulose ethers |
US2553725A (en) * | 1948-09-10 | 1951-05-22 | Buckeye Cotton Oil Company | Process of preparing cellulose derivatives |
JPS4841037B1 (nl) * | 1964-10-26 | 1973-12-04 | ||
DE1543116A1 (de) * | 1965-05-29 | 1969-07-31 | Kalle Ag | Verfahren zur Herstellung niedrigviskoser wasserloeslicher Celluloseaether |
US3549617A (en) * | 1968-03-13 | 1970-12-22 | Du Pont | Brightening water-soluble cellulose derivatives |
DE1928046A1 (de) * | 1968-06-13 | 1969-12-18 | Dow Chemical Co | Verfahren zur Herstellung von Zellulosederivaten mit niedrigem Viskositaetsgrad |
US3728331A (en) * | 1969-04-04 | 1973-04-17 | Dow Chemical Co | Process for reducing the viscosity of a cellulose ether with hydrogen peroxide |
-
1976
- 1976-06-14 US US05/695,876 patent/US4061859A/en not_active Expired - Lifetime
-
1977
- 1977-05-30 CA CA279,385A patent/CA1065312A/en not_active Expired
- 1977-06-10 JP JP52068775A patent/JPS609041B2/ja not_active Expired
- 1977-06-13 GB GB24646/77A patent/GB1578575A/en not_active Expired
- 1977-06-13 NL NL7706458A patent/NL7706458A/nl not_active Application Discontinuation
- 1977-06-13 BR BR7703824A patent/BR7703824A/pt unknown
- 1977-06-14 BE BE178434A patent/BE855674A/xx not_active IP Right Cessation
- 1977-06-14 DE DE2726780A patent/DE2726780C2/de not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US4061859A (en) | 1977-12-06 |
DE2726780C2 (de) | 1983-03-03 |
BR7703824A (pt) | 1978-04-18 |
JPS609041B2 (ja) | 1985-03-07 |
GB1578575A (en) | 1980-11-05 |
BE855674A (fr) | 1977-12-14 |
JPS52152985A (en) | 1977-12-19 |
DE2726780A1 (de) | 1977-12-15 |
CA1065312A (en) | 1979-10-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
NL7706458A (nl) | Werkwijze voor het depolymeriseren van cellulose- -derivaten. | |
NL7702129A (nl) | Werkwijze voor het bereiden van gepolyoxygeneer- de labdanderivaten. | |
NL7804019A (nl) | Werkwijze voor het bereiden van cefemderivaten. | |
NL7700244A (nl) | Werkwijze voor de bereiding van fthalanderivaten. | |
NL7708180A (nl) | Werkwijze voor de bereiding van tetraaelkyl-bis- -cyclohexylaminederivaten. | |
NL7709478A (nl) | Werkwijze voor het dekristalliseren van cellulose. | |
NL7709948A (nl) | Werkwijze voor het bereiden van gesubstitueer- de pyridinen. | |
NL7710870A (nl) | Werkwijze voor het bereiden van titaandioxyde. | |
NL7802675A (nl) | Werkwijze voor het bereiden van benzodiazepine- derivaten. | |
NL7701980A (nl) | Werkwijze voor het bereiden van aminoglycoside- derivaten. | |
NL188994C (nl) | Werkwijze voor het denitroseren van nitrosoaminen. | |
NL7707511A (nl) | Werkwijze voor het bereiden van 6-fluorpyra- zinoyl- of -pyrazinamidoguanidinen. | |
NL7713314A (nl) | Werkwijze voor het bereiden van secoprostaglan- dinen. | |
NL7706906A (nl) | Werkwijze voor het bereiden van indoolderivaten. | |
NL7711245A (nl) | Werkwijze voor het bereiden van pregnaanderivaten. | |
NL184679C (nl) | Werkwijze voor het bereiden van gesubstitueerde pyridinen. | |
NL7712353A (nl) | Werkwijze voor het bereiden van 2-methyl-2-hep- teen-6-on. | |
NL7801288A (nl) | Werkwijze voor het bereiden van oxadiazool- pyrimidine-derivaten. | |
NL7705710A (nl) | Werkwijze voor het bereiden van dicalciumsili- caat. | |
NL7810954A (nl) | Werkwijze voor het uitlogen van mangaanerts. | |
NL7705754A (nl) | Werkwijze voor het bereiden van uracilderivaten. | |
NL173644C (nl) | Werkwijze voor het bereiden van alfa-alkylthioazijnzuurderivaten. | |
NL7703589A (nl) | Werkwijze voor het bereiden van ftaalide. | |
NL7701933A (nl) | Werkwijze voor het bereiden van gesubstitueerde fenylguanidinen. | |
NL7810098A (nl) | Werkwijze voor het bereiden van 4-chloorchinolinen. |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
BA | A request for search or an international-type search has been filed | ||
A85 | Still pending on 85-01-01 | ||
BB | A search report has been drawn up | ||
BV | The patent application has lapsed |