CN1330090A - Process for preparing polyvinyl alcohol with low alcoholysis level - Google Patents
Process for preparing polyvinyl alcohol with low alcoholysis level Download PDFInfo
- Publication number
- CN1330090A CN1330090A CN 01115186 CN01115186A CN1330090A CN 1330090 A CN1330090 A CN 1330090A CN 01115186 CN01115186 CN 01115186 CN 01115186 A CN01115186 A CN 01115186A CN 1330090 A CN1330090 A CN 1330090A
- Authority
- CN
- China
- Prior art keywords
- polyvinyl alcohol
- alcoholysis
- low
- solvent
- methyl alcohol
- 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.)
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Abstract
Description
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNB011151862A CN1164629C (en) | 2001-08-01 | 2001-08-01 | Process for preparing polyvinyl alcohol with low alcoholysis level |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNB011151862A CN1164629C (en) | 2001-08-01 | 2001-08-01 | Process for preparing polyvinyl alcohol with low alcoholysis level |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1330090A true CN1330090A (en) | 2002-01-09 |
CN1164629C CN1164629C (en) | 2004-09-01 |
Family
ID=4661765
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB011151862A Expired - Fee Related CN1164629C (en) | 2001-08-01 | 2001-08-01 | Process for preparing polyvinyl alcohol with low alcoholysis level |
Country Status (1)
Country | Link |
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CN (1) | CN1164629C (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103626903A (en) * | 2013-12-10 | 2014-03-12 | 济南开发区星火科学技术研究院 | Production method of polyvinyl alcohol with low polymerization degree and low alcoholysis degree |
CN106008772A (en) * | 2016-07-12 | 2016-10-12 | 中国石油化工股份有限公司 | Method for safely controlling polymerization reaction of vinyl acetate-methanol mixed liquid |
CN111072824A (en) * | 2019-12-30 | 2020-04-28 | 内蒙古蒙维科技有限公司 | Preparation method of polyvinyl alcohol with low ash content and low alcoholysis degree |
CN111763275A (en) * | 2020-07-23 | 2020-10-13 | 安徽皖维高新材料股份有限公司 | Method for prolonging production period of polyvinyl alcohol with low alcoholysis degree |
CN113004443A (en) * | 2021-03-09 | 2021-06-22 | 内蒙古双欣环保材料股份有限公司 | Rapid gelation method of polyvinyl alcohol and preparation method of polyvinyl alcohol with low alcoholysis degree |
CN115418144A (en) * | 2022-08-19 | 2022-12-02 | 复旦大学 | Antifogging coating material of polyvinyl alcohol with ultra-low alcoholysis degree and preparation method thereof |
-
2001
- 2001-08-01 CN CNB011151862A patent/CN1164629C/en not_active Expired - Fee Related
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103626903A (en) * | 2013-12-10 | 2014-03-12 | 济南开发区星火科学技术研究院 | Production method of polyvinyl alcohol with low polymerization degree and low alcoholysis degree |
CN106008772A (en) * | 2016-07-12 | 2016-10-12 | 中国石油化工股份有限公司 | Method for safely controlling polymerization reaction of vinyl acetate-methanol mixed liquid |
CN106008772B (en) * | 2016-07-12 | 2018-06-19 | 中国石油化工股份有限公司 | The method of controlling security of vinyl acetate-methyl alcohol mixed liquor polymerisation |
CN111072824A (en) * | 2019-12-30 | 2020-04-28 | 内蒙古蒙维科技有限公司 | Preparation method of polyvinyl alcohol with low ash content and low alcoholysis degree |
CN111763275A (en) * | 2020-07-23 | 2020-10-13 | 安徽皖维高新材料股份有限公司 | Method for prolonging production period of polyvinyl alcohol with low alcoholysis degree |
CN111763275B (en) * | 2020-07-23 | 2023-03-28 | 安徽皖维高新材料股份有限公司 | Method for prolonging production period of polyvinyl alcohol with low alcoholysis degree |
CN113004443A (en) * | 2021-03-09 | 2021-06-22 | 内蒙古双欣环保材料股份有限公司 | Rapid gelation method of polyvinyl alcohol and preparation method of polyvinyl alcohol with low alcoholysis degree |
CN115418144A (en) * | 2022-08-19 | 2022-12-02 | 复旦大学 | Antifogging coating material of polyvinyl alcohol with ultra-low alcoholysis degree and preparation method thereof |
CN115418144B (en) * | 2022-08-19 | 2023-10-31 | 复旦大学 | Ultra-low alcoholysis degree polyvinyl alcohol anti-fog coating material and manufacturing method thereof |
Also Published As
Publication number | Publication date |
---|---|
CN1164629C (en) | 2004-09-01 |
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Legal Events
Date | Code | Title | Description |
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C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C06 | Publication | ||
PB01 | Publication | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shandong Tuobo Plastic Products Co., Ltd. Assignor: Qingdao University of Science & Technology Contract fulfillment period: 2009.9.10 to 2014.9.10 contract change Contract record no.: 2009370000497 Denomination of invention: Process for preparing polyvinyl alcohol with low alcoholysis level Granted publication date: 20040901 License type: Exclusive license Record date: 2009.11.6 |
|
LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.9.10 TO 2014.9.10; CHANGE OF CONTRACT Name of requester: SHANDONG TUOBO PLASTIC PRODUCTS CO.,LTD. Effective date: 20091106 |
|
EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shandong Tuobo Plastic Products Co., Ltd. Assignor: Qingdao University of Science & Technology Contract fulfillment period: 2009.9.10 to 2014.9.10 contract change Contract record no.: 2009370000501 Denomination of invention: Process for preparing polyvinyl alcohol with low alcoholysis level Granted publication date: 20040901 License type: Exclusive license Record date: 20091118 |
|
LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.9.10 TO 2014.9.10; CHANGE OF CONTRACT Name of requester: SHANDONG TUOBO PLASTIC PRODUCTS CO.,LTD. Effective date: 20091118 |
|
C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20040901 |