KR20010014781A - 저치환도 히드록시프로필 셀룰로오즈 입자의 형성 방법 - Google Patents
저치환도 히드록시프로필 셀룰로오즈 입자의 형성 방법 Download PDFInfo
- Publication number
- KR20010014781A KR20010014781A KR1020000020904A KR20000020904A KR20010014781A KR 20010014781 A KR20010014781 A KR 20010014781A KR 1020000020904 A KR1020000020904 A KR 1020000020904A KR 20000020904 A KR20000020904 A KR 20000020904A KR 20010014781 A KR20010014781 A KR 20010014781A
- Authority
- KR
- South Korea
- Prior art keywords
- reaction product
- acid
- crude reaction
- hydroxypropyl cellulose
- water
- Prior art date
Links
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
- C08B11/02—Alkyl or cycloalkyl ethers
- C08B11/04—Alkyl or cycloalkyl ethers with substituted hydrocarbon radicals
- C08B11/08—Alkyl or cycloalkyl ethers with substituted hydrocarbon radicals with hydroxylated hydrocarbon radicals; Esters, ethers, or acetals thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/12—Powdering or granulating
- C08J3/14—Powdering or granulating by precipitation from solutions
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biochemistry (AREA)
- Materials Engineering (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
Description
세정 시험 결과 | ||
여과 시간(초) | 회분(중량%) | |
실시예 1 | 5 | 0.26 |
실시예 2 | 3 | 0.31 |
실시예 3 | 2 | 0.40 |
실시예 4 | 10 | 0.25 |
비교예 1 | 30 | 1.52 |
비교예 2 | 15 | 6.50 |
Claims (2)
- 알칼리 셀룰로오즈와 히드록시프로필화제의 반응 생성물을 물로 용해하는 공정 및 산에 의해 중화 석출하는 공정을 연속적으로 행하는 것을 포함하는 저치환도 히드록시프로필 셀룰로오즈 입자의 형성 방법.
- 제1항에 있어서, 상기 용해 공정 및 중화 석출 공정의 연속적 처리가 2축의 연속 혼련 장치를 사용하여 행해지는 것인 저치환도 히드록시프로필 셀룰로오즈 입자의 형성 방법.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11113009A JP2000302802A (ja) | 1999-04-21 | 1999-04-21 | 低置換度ヒドロキシプロピルセルロース粒子の形成方法 |
JP99-113009 | 1999-04-21 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20010014781A true KR20010014781A (ko) | 2001-02-26 |
KR100469195B1 KR100469195B1 (ko) | 2005-01-31 |
Family
ID=14601162
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR10-2000-0020904A KR100469195B1 (ko) | 1999-04-21 | 2000-04-20 | 저치환도 히드록시프로필 셀룰로오즈 입자의 형성 방법 |
Country Status (4)
Country | Link |
---|---|
JP (1) | JP2000302802A (ko) |
KR (1) | KR100469195B1 (ko) |
CN (1) | CN1292735C (ko) |
TW (1) | TWI256396B (ko) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4524254B2 (ja) * | 2006-01-27 | 2010-08-11 | 信越化学工業株式会社 | 低置換度ヒドロキシプロピルセルロースを含む化粧料 |
JP5089287B2 (ja) * | 2006-08-08 | 2012-12-05 | 信越化学工業株式会社 | 低置換度ヒドロキシプロピルセルロース粉末の製造方法 |
JP5031054B2 (ja) * | 2010-03-18 | 2012-09-19 | 信越化学工業株式会社 | 低置換度ヒドロキシプロピルセルロース及びこれを含む固形製剤 |
EP2733154B1 (en) * | 2012-11-16 | 2015-06-17 | Shin-Etsu Chemical Co., Ltd. | Method for producing purified low-substituted hydroxypropyl cellulose |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2488631A (en) * | 1945-05-19 | 1949-11-22 | American Viscose Corp | Cellulose ethers and the process for producing the same |
JPS5163927A (en) * | 1974-11-28 | 1976-06-02 | Shinetsu Chemical Co | Ketsugoseiryokonajozaihokaizaino seizohoho |
DE2924330A1 (de) * | 1979-06-15 | 1980-12-18 | Hoechst Ag | Kontinuierliches verfahren und vorrichtung zur herstellung von wasserloeslicher hydroxyalkylcellulose oder deren mischethern |
JPH01138201A (ja) * | 1987-11-25 | 1989-05-31 | Dai Ichi Kogyo Seiyaku Co Ltd | 水溶性第四級窒素含有セルロースエーテル誘導体の製造方法 |
JP2994956B2 (ja) * | 1994-05-31 | 1999-12-27 | 信越化学工業株式会社 | 低置換度ヒドロキシプロピルセルロース、その組成物およびその錠剤 |
JP3212532B2 (ja) * | 1997-03-26 | 2001-09-25 | 信越化学工業株式会社 | 低置換度ヒドロキシプロピルセルロースの製造方法 |
JP3212534B2 (ja) * | 1997-04-08 | 2001-09-25 | 信越化学工業株式会社 | 低置換度ヒドロキシプロピルセルロース粉末 |
-
1999
- 1999-04-21 JP JP11113009A patent/JP2000302802A/ja active Pending
-
2000
- 2000-03-22 CN CNB001046411A patent/CN1292735C/zh not_active Expired - Fee Related
- 2000-04-20 KR KR10-2000-0020904A patent/KR100469195B1/ko not_active IP Right Cessation
- 2000-04-20 TW TW089107489A patent/TWI256396B/zh not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
CN1292735C (zh) | 2007-01-03 |
TWI256396B (en) | 2006-06-11 |
JP2000302802A (ja) | 2000-10-31 |
CN1270807A (zh) | 2000-10-25 |
KR100469195B1 (ko) | 2005-01-31 |
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