CN1280311C - 三羟丁基纤维素醚的合成方法 - Google Patents
三羟丁基纤维素醚的合成方法 Download PDFInfo
- Publication number
- CN1280311C CN1280311C CN 03104639 CN03104639A CN1280311C CN 1280311 C CN1280311 C CN 1280311C CN 03104639 CN03104639 CN 03104639 CN 03104639 A CN03104639 A CN 03104639A CN 1280311 C CN1280311 C CN 1280311C
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- CN
- China
- Prior art keywords
- cellulose
- reaction
- trihydroxybutyl
- cellulose ether
- ether
- 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.)
- Expired - Fee Related
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- Polysaccharides And Polysaccharide Derivatives (AREA)
Abstract
Description
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN 03104639 CN1280311C (zh) | 2003-02-19 | 2003-02-19 | 三羟丁基纤维素醚的合成方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN 03104639 CN1280311C (zh) | 2003-02-19 | 2003-02-19 | 三羟丁基纤维素醚的合成方法 |
Publications (2)
Publication Number | Publication Date |
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CN1439652A CN1439652A (zh) | 2003-09-03 |
CN1280311C true CN1280311C (zh) | 2006-10-18 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN 03104639 Expired - Fee Related CN1280311C (zh) | 2003-02-19 | 2003-02-19 | 三羟丁基纤维素醚的合成方法 |
Country Status (1)
Country | Link |
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CN (1) | CN1280311C (zh) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110325552B (zh) * | 2017-03-07 | 2022-03-04 | 花王株式会社 | 改性纤维素纤维的制造方法 |
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2003
- 2003-02-19 CN CN 03104639 patent/CN1280311C/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
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CN1439652A (zh) | 2003-09-03 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
EE01 | Entry into force of recordation of patent licensing contract |
Assignee: SHANGHAI EVERBRIGHT ENTERPRISE DEVELOPMENT Co.,Ltd. Assignor: BEIJING INSTITUTE OF TECHNOLOGY Contract fulfillment period: 2008.10.10 to 2013.10.9 Contract record no.: 2008110000118 Denomination of invention: Preparation and synthesis of trihydroxybutyl cellulose ether Granted publication date: 20061018 License type: Exclusive license Record date: 20081112 |
|
LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.10.10 TO 2013.10.9; CHANGE OF CONTRACT Name of requester: SHANGHAI CHANGGUANG ENTERPRISES DEVELOPMENT CO., L Effective date: 20081112 |
|
C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061018 Termination date: 20120219 |