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 (fr) |
| JP (1) | JPS609041B2 (fr) |
| BE (1) | BE855674A (fr) |
| BR (1) | BR7703824A (fr) |
| CA (1) | CA1065312A (fr) |
| DE (1) | DE2726780C2 (fr) |
| GB (1) | GB1578575A (fr) |
| NL (1) | NL7706458A (fr) |
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 |
| US7001872B2 (en) * | 2001-06-11 | 2006-02-21 | Halliburton Energy Services, Inc. | Subterranean formation treating fluid and methods of fracturing subterranean formations |
| US6488091B1 (en) * | 2001-06-11 | 2002-12-03 | Halliburton Energy Services, Inc. | Subterranean formation treating fluid concentrates, treating fluids and methods |
| 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 |
| CN1961005B (zh) * | 2004-05-26 | 2010-05-26 | 陶氏环球技术公司 | 低分子量乙基纤维素的生产 |
| KR101404282B1 (ko) * | 2006-06-14 | 2014-06-05 | 다우 글로벌 테크놀로지스 엘엘씨 | 셀룰로오스 에테르의 평균 분자량 감소 방법 |
| US9174879B2 (en) * | 2007-11-30 | 2015-11-03 | Corning Incorporated | Ceramic precursor batch composition and method of increasing ceramic precursor batch extrusion rate |
| KR102220604B1 (ko) | 2012-07-17 | 2021-03-02 | 다우 글로벌 테크놀로지스 엘엘씨 | 유기 액체 희석제 및 매우 낮은 점도의 셀룰로즈 에테르를 포함하는 조성물 |
| 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 (fr) * | 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/fr not_active Expired
- 1977-06-10 JP JP52068775A patent/JPS609041B2/ja not_active Expired
- 1977-06-13 BR BR7703824A patent/BR7703824A/pt unknown
- 1977-06-13 GB GB24646/77A patent/GB1578575A/en not_active Expired
- 1977-06-13 NL NL7706458A patent/NL7706458A/xx not_active Application Discontinuation
- 1977-06-14 DE DE2726780A patent/DE2726780C2/de not_active Expired
- 1977-06-14 BE BE178434A patent/BE855674A/fr not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| GB1578575A (en) | 1980-11-05 |
| JPS609041B2 (ja) | 1985-03-07 |
| JPS52152985A (en) | 1977-12-19 |
| BE855674A (fr) | 1977-12-14 |
| US4061859A (en) | 1977-12-06 |
| BR7703824A (pt) | 1978-04-18 |
| CA1065312A (fr) | 1979-10-30 |
| DE2726780A1 (de) | 1977-12-15 |
| DE2726780C2 (de) | 1983-03-03 |
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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 |