JP2006501324A5 - - Google Patents
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- Publication number
- JP2006501324A5 JP2006501324A5 JP2004535104A JP2004535104A JP2006501324A5 JP 2006501324 A5 JP2006501324 A5 JP 2006501324A5 JP 2004535104 A JP2004535104 A JP 2004535104A JP 2004535104 A JP2004535104 A JP 2004535104A JP 2006501324 A5 JP2006501324 A5 JP 2006501324A5
- Authority
- JP
- Japan
- Prior art keywords
- group
- cellulose ether
- compound
- aldehyde
- water
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
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- 229920003086 cellulose ether Polymers 0.000 claims description 8
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 5
- 239000002253 acid Substances 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 4
- 125000003172 aldehyde group Chemical group 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 125000002485 formyl group Chemical class [H]C(*)=O 0.000 claims description 2
- 239000000725 suspension Substances 0.000 claims 2
- 239000007864 aqueous solution Substances 0.000 claims 1
- 150000002148 esters Chemical class 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 claims 1
- 230000002522 swelling Effects 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000004132 cross linking Methods 0.000 description 2
- 230000002378 acidificating Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 150000002373 hemiacetals Chemical class 0.000 description 1
- 230000001264 neutralization Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000002441 reversible Effects 0.000 description 1
Description
セルロースエーテルの遊離のヒドロキシル基とアルデヒドを反応させることにより、ヘミアセタールの生成の下に、部分的な可逆性架橋が生じ、これは、この架橋されたセルロースエーテルを中性のもしくは弱酸性の水中に溶解すると、時間の遅れをもって再び解裂する。その結果として、水性媒体中への粉末の分布及び（架橋剤の添加量により架橋度を介して制御することができる）定められたオープンタイムＡＱＶの後に、塊状物を形成することなく粘度が急激に上昇する。
前記化合物の酸基及びアルデヒド基と前記セルロースエーテルのＯＨ基との反応は、好ましくは、エステル結合もしくはヘミアセタール結合を導く。
Claims (2)
- 塊状物を形成しない攪拌性及び水溶液中に混ぜ入れた際の膨潤遅れを有する一時的に架橋したセルロースエーテルの製造方法であって、先ず、遊離のＯＨ基を有するセルロースエーテルを、少なくとも一つのアルデヒド基及び少なくとも一つの酸基を含む化合物と、水中もしくは懸濁媒体中で、０〜４０℃の範囲の温度で混合し、次いで前記化合物の酸基及びアルデヒド基を前記セルロースエーテルのＯＨ基と反応させ、この際、前記セルロースエーテルは、前記水もしくは懸濁媒体中に溶解されないことを特徴とする上記方法。
- 前記化合物の酸基及びアルデヒド基と、前記セルロースエーテルのＯＨ基との反応を行い、エステルもしくはヘミアセタール結合を形成させることを特徴とする、請求項１の方法。
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10239442A DE10239442A1 (de) | 2002-08-28 | 2002-08-28 | Verfahren zum Herstellen von temporär vernetzten Celluloseethern |
| PCT/EP2003/009150 WO2004024775A1 (de) | 2002-08-28 | 2003-08-19 | Verfahren zum herstellen von temporär vernetzten celluloseethern |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2006501324A JP2006501324A (ja) | 2006-01-12 |
| JP2006501324A5 true JP2006501324A5 (ja) | 2010-06-24 |
Family
ID=31502038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2004535104A Pending JP2006501324A (ja) | 2002-08-28 | 2003-08-19 | 一時的に架橋されたセルロースエーテルの製造法 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20050261490A1 (ja) |
| EP (1) | EP1537149B1 (ja) |
| JP (1) | JP2006501324A (ja) |
| KR (1) | KR20050042486A (ja) |
| DE (1) | DE10239442A1 (ja) |
| MX (1) | MXPA05002252A (ja) |
| WO (1) | WO2004024775A1 (ja) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007084680A (ja) * | 2005-09-22 | 2007-04-05 | Toho Chem Ind Co Ltd | 水易溶性高分子化合物及びその製造方法 |
| US20070175361A1 (en) | 2006-01-30 | 2007-08-02 | Bonney Stephen R | Process of making cold-water dispersible cellulose ethers and uses thereof |
| WO2010005847A1 (en) * | 2008-07-08 | 2010-01-14 | The Regents Of The University Of California | Acid-degradable and bioerodible modified polyhydroxylated materials |
| US9644039B2 (en) * | 2006-03-24 | 2017-05-09 | The Regents Of The University Of California | Acid-degradable and bioerodible modified polyhydroxylated materials |
| EP2177538A1 (en) * | 2008-10-16 | 2010-04-21 | Dow Global Technologies Inc. | Cellulose ethers having little swelling and process for their production |
| US9284188B2 (en) | 2010-09-03 | 2016-03-15 | The Regents Of The University Of California | Cytosolic delivery of materials with endosome-disrupting colloids |
| US9321851B2 (en) * | 2011-03-07 | 2016-04-26 | Hercules Incorporated | Water soluble polymer powder formulation having improved dispersing properties |
| US9321908B2 (en) * | 2011-03-07 | 2016-04-26 | Hercules Incorporated | Methods for dispersing water soluble polymer powder |
| DE102012204265A1 (de) | 2012-03-19 | 2013-09-19 | Bayerische Motoren Werke Aktiengesellschaft | Wärmekraftmaschine |
| DE102015000795A1 (de) * | 2015-01-23 | 2016-07-28 | Se Tylose Gmbh & Co. Kg | Reversibel vernetzte Celluloseether und Verfahren zu deren Herstellung durch selektive Oxidation von vicinalen OH-Gruppen |
| US10618980B2 (en) | 2015-10-16 | 2020-04-14 | Nouryon Chemicals International B.V. | Cellulose ethers with temporary cross-links, a process to make them, and their use |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2720464A (en) * | 1952-10-24 | 1955-10-11 | Dow Chemical Co | Method of preparing cold-water-soluble powdered cellulose ethers |
| US2879268A (en) | 1954-02-12 | 1959-03-24 | Mo Och Domsjoe Ab | Methods of improving the dissolution of high-molecular substances |
| US3072635A (en) * | 1959-11-04 | 1963-01-08 | Chemical Dev Of Canada Ltd | Readily dissolving cellulose derivatives and process therefor |
| US4366070A (en) * | 1980-04-28 | 1982-12-28 | W. R. Grace & Co. | Viscosifier & fluid loss control system |
| US4363736A (en) * | 1980-06-13 | 1982-12-14 | W. R. Grace & Co. | Fluid loss control system |
| DE3103338A1 (de) * | 1981-01-31 | 1982-08-26 | Henkel KGaA, 4000 Düsseldorf | "verfahren zur herstellung von schnell loeslichem kleister auf basis von celluloseethern und deren verwendung als tapetenkleister" |
| US4473479A (en) * | 1981-02-27 | 1984-09-25 | W. R. Grace & Co. | Viscosifier and fluid loss control system |
| US4474667A (en) | 1981-02-27 | 1984-10-02 | W. R. Grace & Co. | Fluid loss control system |
| US4473480A (en) * | 1981-04-24 | 1984-09-25 | W. R. Grace & Co. | High temperature stable fluid loss control system |
| US4411800A (en) | 1981-04-24 | 1983-10-25 | W. R. Grace & Co. | High temperature stable fluid loss control system |
| CA1340434C (en) * | 1986-06-27 | 1999-03-16 | Carlisle Mitchell Herron | Process for making individualized crosslinked fibers having reduced residuals and fibers thereof |
| US4889562A (en) * | 1987-06-16 | 1989-12-26 | Ciba-Geigy Corporation | Organic pigments coated with crosslinked ethyl cellulose |
| DE10040171A1 (de) * | 2000-08-17 | 2002-03-07 | Wacker Chemie Gmbh | Verwendung von acetalisierten Vinylalkoholpolymerisaten als Verdickungsmittel |
-
2002
- 2002-08-28 DE DE10239442A patent/DE10239442A1/de not_active Withdrawn
-
2003
- 2003-08-19 KR KR1020057003296A patent/KR20050042486A/ko not_active Application Discontinuation
- 2003-08-19 US US10/524,455 patent/US20050261490A1/en not_active Abandoned
- 2003-08-19 EP EP03794891.6A patent/EP1537149B1/de not_active Expired - Fee Related
- 2003-08-19 WO PCT/EP2003/009150 patent/WO2004024775A1/de active Application Filing
- 2003-08-19 MX MXPA05002252A patent/MXPA05002252A/es active IP Right Grant
- 2003-08-19 JP JP2004535104A patent/JP2006501324A/ja active Pending
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