KR850002567A - 혼합 히드록시 알킬 셀룰로오즈의 제조방법 - Google Patents
혼합 히드록시 알킬 셀룰로오즈의 제조방법 Download PDFInfo
- Publication number
- KR850002567A KR850002567A KR1019840005792A KR840005792A KR850002567A KR 850002567 A KR850002567 A KR 850002567A KR 1019840005792 A KR1019840005792 A KR 1019840005792A KR 840005792 A KR840005792 A KR 840005792A KR 850002567 A KR850002567 A KR 850002567A
- Authority
- KR
- South Korea
- Prior art keywords
- cellulose
- etherifying agent
- attached
- alkylene oxide
- hydroxy
- Prior art date
Links
- 229920013821 hydroxy alkyl cellulose Polymers 0.000 title claims 4
- 238000004519 manufacturing process Methods 0.000 title claims 2
- 229920002678 cellulose Polymers 0.000 claims 21
- 239000001913 cellulose Substances 0.000 claims 21
- 239000003795 chemical substances by application Substances 0.000 claims 11
- 238000000034 method Methods 0.000 claims 10
- 125000002947 alkylene group Chemical group 0.000 claims 9
- 239000003513 alkali Substances 0.000 claims 6
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical group C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 claims 3
- 125000001033 ether group Chemical group 0.000 claims 3
- 238000006266 etherification reaction Methods 0.000 claims 3
- 125000002768 hydroxyalkyl group Chemical group 0.000 claims 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims 2
- 125000005113 hydroxyalkoxy group Chemical group 0.000 claims 2
- GAWIXWVDTYZWAW-UHFFFAOYSA-N C[CH]O Chemical group C[CH]O GAWIXWVDTYZWAW-UHFFFAOYSA-N 0.000 claims 1
- 229920001479 Hydroxyethyl methyl cellulose Polymers 0.000 claims 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims 1
- 150000007933 aliphatic carboxylic acids Chemical class 0.000 claims 1
- 150000001348 alkyl chlorides Chemical group 0.000 claims 1
- NEHMKBQYUWJMIP-UHFFFAOYSA-N anhydrous methyl chloride Natural products ClC NEHMKBQYUWJMIP-UHFFFAOYSA-N 0.000 claims 1
- 230000015572 biosynthetic process Effects 0.000 claims 1
- NEHMKBQYUWJMIP-OUBTZVSYSA-N chloromethane Chemical group Cl[13CH3] NEHMKBQYUWJMIP-OUBTZVSYSA-N 0.000 claims 1
- 150000002170 ethers Chemical class 0.000 claims 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims 1
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 claims 1
- 229920000233 poly(alkylene oxides) Polymers 0.000 claims 1
- 125000001424 substituent group Chemical group 0.000 claims 1
- 238000006467 substitution reaction Methods 0.000 claims 1
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
- C08B11/193—Mixed ethers, i.e. ethers with two or more different etherifying groups
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)
Abstract
내용 없음
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
Claims (9)
- 알칼리 셀루로오즈를 알킬렌 옥사이드 및 에테르화제로 연속적으로 반응시켜 혼합 록시 히드알킬 셀루로오즈 에테르를 제조하는 방법에 있어서, (a) 셀루로오즈 분자에 부착될 제 1성분량의 히드록시 알킬그룹을 셀루로오즈에 부착 시키는데 충분한 조건하의 알킬렌옥사이드, (b) 에테르그룹이 셀루로오즈에 부착되는 조건하에, 단계 (a) 및 (c)에서 사용되는 알킬렌 옥사이드와는 다르고 폴리(알킬렌옥사이드) 체인의 형성을 감소시키는 에테르화제, 및 (c) 셀루로오즈에 부착될 제 2성분량의 히드록시알킬 그룹을 셀루로오즈에 부착시키는데 충분한 조건하의 알킬렌옥사이드를 연속적으로 알칼리셀루로즈와 반응시킴을 특징으로 하는 혼합 히드록시 알킬 셀루로오즈의 제조방법.
- 제1항에 있어서, 알킬렌옥사이드가 에틸렌옥사이드이고 에테르화제가 클로로알칸인 방법.
- 제1항에 있어서, 단계(a) 20내지 85중량%의 셀루로오즈에 부착될 히드록시알킬 그룹이 셀루로오즈에 부착되고, 단계(b) 15내지 80중량%의 셀루로오즈에 부착될 에테르그룹이 셀루로오즈에 부착되며 또한 상기 제 2성분의 히드록시 알콕실 그룹이 셀루로오즈에 부착된 후 셀루로오즈는 셀루로오즈에 부착될 전량의 히드록시 알콕실 그룹을 함유하는 방법.
- 제1항에 있어서, 단계(a) 및 (c)에서 알킬렌 옥사이드는 에틸렌옥사이드이고, 상기 에틸렌옥사이드는 알칼리 셀루로오즈중에 연속적으로 첨가하는 방법.
- 제1항에 있어서, 알킬렌옥사이드 및 에테르화제를 알칼리셀루로오즈에 동시에 첨가하고, 에테르화제가 알칼리셀루로오즈와 실질적으로 반응하지 않는 조건하에 알칼리셀루로오즈를 알킬렌옥사이드와 반응시킨다음 알칼리 셀루로오즈를 에테르화제와 반응시켜 단계 (a) 및 (c)를 수행하는 방법.
- 제2항에 있어서, 에테르화제가 클로로메탄이고 혼합 히드록시 알킬 셀루로오즈 에테르가 1.0내지 4.0의 히드록시 에틸 몰치환기와 0.05내지 1.0의 메톡시 치환도를 갖는 히드록시 에틸 메틸 셀루로오즈인 방법.
- 제1항에 있어서, 단계(c)를 거친 후, 알칼리셀루로오즈와 단계(a) 및 (c)에서 사외되는 알킬렌옥사이드와는 다른 에테르화제와 접촉되고, 상기 접촉이 에테르그룹이 셀루로오즈에 부착되는 조건하에 이루어지는 방법.
- 제7항에 있어서, 단계(b)에서 사용되는 에테르화제가 단계(c)를 거친 후 알칼리 셀루로오즈와 접촉된 에테르화제와는 다른 방법.
- 제1항에 있어서, 에테르화제가 할로-치환된 지방족 카르복시산인 방법.※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/534,951 US4456751A (en) | 1983-09-22 | 1983-09-22 | Multiple stage process for preparing mixed hydroxyalkylcellulose ethers |
US534951 | 1983-09-22 | ||
US534,951 | 1983-09-22 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR850002567A true KR850002567A (ko) | 1985-05-15 |
KR910006808B1 KR910006808B1 (ko) | 1991-09-02 |
Family
ID=24132193
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019840005792A KR910006808B1 (ko) | 1983-09-22 | 1984-09-21 | 혼합 히드록시 알킬 셀루로오즈의 제조방법 |
Country Status (6)
Country | Link |
---|---|
US (1) | US4456751A (ko) |
EP (1) | EP0135896A3 (ko) |
JP (1) | JPS6088001A (ko) |
KR (1) | KR910006808B1 (ko) |
AU (1) | AU562040B2 (ko) |
CA (1) | CA1212668A (ko) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3316124A1 (de) * | 1983-05-03 | 1984-11-08 | Hoechst Ag, 6230 Frankfurt | Verfahren zur herstellung von wasserloeslichen cellulosemischethern |
US4547571A (en) * | 1983-10-06 | 1985-10-15 | Kohjin Co., Ltd. | Process for preparing carboxymethyl ethyl cellulose suitable for enteric coating |
EP0353789A1 (en) | 1985-02-28 | 1990-02-07 | The Dow Chemical Company | Hydroxypropyl methyl cellulose ethers useful as thickening agents for organic liquids |
US4661589A (en) * | 1985-07-02 | 1987-04-28 | The Dow Chemical Company | Process for preparing hydroxyalkylcellulose ethers |
US4705809A (en) * | 1986-07-07 | 1987-11-10 | The Dow Chemical Company | Process for preparing a porous polymer article |
US4783570A (en) * | 1987-05-26 | 1988-11-08 | Amoco Corporation | Selective gas-phase isomerization of dimethylnaphthalene: 2,7-DMN triad |
US5504201A (en) * | 1994-03-14 | 1996-04-02 | The Dow Chemical Company | Process for recovering salable cellulose ethers from an aqueous medium containing such cellulose ethers |
US5925999A (en) * | 1996-11-13 | 1999-07-20 | Siemens Canada Limited | Three-speed dual-winding direct current permanent magnet motor method and apparatus |
US6235893B1 (en) | 1999-04-01 | 2001-05-22 | The Dow Chemical Company | Process for making cellulose ether having enhanced gel strength |
KR100661918B1 (ko) * | 1999-04-01 | 2006-12-28 | 다우 글로벌 테크놀로지스 인크. | 겔 강도가 증가된 메틸셀룰로스, 이의 제조방법 및 이를 포함하는 식품 조성물 |
WO2003106366A1 (en) * | 2002-06-12 | 2003-12-24 | Dow Global Technologies Inc. | Cementitious composition |
DE102004019296B4 (de) * | 2004-04-21 | 2006-01-05 | Wolff Cellulosics Gmbh & Co. Kg | Verfahren zur Herstellung von Methylhydroxyalkylcellulose |
KR101445270B1 (ko) * | 2006-05-18 | 2014-09-29 | 다우 글로벌 테크놀로지스 엘엘씨 | 셀룰로스 분말의 제조에서 특정한 스크린의 용도 |
EP2403881B1 (en) | 2009-03-05 | 2017-10-11 | Dow Global Technologies LLC | Process for improved production of alkali cellulose and cellulose derivatives |
CN112694536A (zh) * | 2021-02-04 | 2021-04-23 | 浙江中维药业股份有限公司 | 一种羟丙基甲基纤维素的制备方法 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US24116A (en) * | 1859-05-24 | Washing-machine | ||
USRE24116E (en) | 1956-01-31 | Ethyl oxyethyl cellulose derivative | ||
US2835666A (en) * | 1954-05-27 | 1958-05-20 | Dow Chemical Co | Water-soluble thermoplastic cellulose ether |
US2831852A (en) * | 1954-05-27 | 1958-04-22 | Dow Chemical Co | Water-soluble thermoplastic cellulose ethers |
US3131176A (en) * | 1960-04-13 | 1964-04-28 | Hercules Powder Co Ltd | Manufacture of water-soluble hydroxyalkyl cellulose ethers |
DE1418921A1 (de) * | 1960-07-21 | 1968-12-05 | Kalle Ag | Verfahren zur Herstellung von wasserloeslichen vernetzbaren Celluloseallylmischaethern |
US3355449A (en) * | 1963-06-19 | 1967-11-28 | Toyo Spinning Co Ltd | Water soluble cellulose ethers and their production |
US3296247A (en) * | 1964-07-06 | 1967-01-03 | Hercules Inc | Mixed cellulose ethers |
US3839319A (en) * | 1973-01-26 | 1974-10-01 | Dow Chemical Co | Hydroxypropyl methylcellulose ethers and method of preparation |
US4096325A (en) * | 1976-02-20 | 1978-06-20 | Anheuser-Busch, Incorporated | Methyl hydroxypropyl cellulose ethers |
FR2372177A2 (fr) * | 1976-11-26 | 1978-06-23 | Hercules France Sa | Procede de preparation d'hydroxypropylcellulose |
JPS56802A (en) * | 1979-06-15 | 1981-01-07 | Nippon Soda Co Ltd | Preparation of hydroxypropyl-cellulose |
-
1983
- 1983-09-22 US US06/534,951 patent/US4456751A/en not_active Expired - Fee Related
-
1984
- 1984-09-14 EP EP84110980A patent/EP0135896A3/en not_active Withdrawn
- 1984-09-17 CA CA000463271A patent/CA1212668A/en not_active Expired
- 1984-09-19 AU AU33287/84A patent/AU562040B2/en not_active Ceased
- 1984-09-21 JP JP59196941A patent/JPS6088001A/ja active Pending
- 1984-09-21 KR KR1019840005792A patent/KR910006808B1/ko active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
EP0135896A2 (en) | 1985-04-03 |
US4456751A (en) | 1984-06-26 |
JPS6088001A (ja) | 1985-05-17 |
KR910006808B1 (ko) | 1991-09-02 |
AU562040B2 (en) | 1987-05-28 |
AU3328784A (en) | 1985-03-28 |
EP0135896A3 (en) | 1986-01-22 |
CA1212668A (en) | 1986-10-14 |
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