CN102002000B - Method for producing 5,5-dimethyl hydantoin - Google Patents
Method for producing 5,5-dimethyl hydantoin Download PDFInfo
- Publication number
- CN102002000B CN102002000B CN2010105488085A CN201010548808A CN102002000B CN 102002000 B CN102002000 B CN 102002000B CN 2010105488085 A CN2010105488085 A CN 2010105488085A CN 201010548808 A CN201010548808 A CN 201010548808A CN 102002000 B CN102002000 B CN 102002000B
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Abstract
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Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN2010105488085A CN102002000B (en) | 2010-11-18 | 2010-11-18 | Method for producing 5,5-dimethyl hydantoin |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN2010105488085A CN102002000B (en) | 2010-11-18 | 2010-11-18 | Method for producing 5,5-dimethyl hydantoin |
Publications (2)
Publication Number | Publication Date |
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CN102002000A CN102002000A (en) | 2011-04-06 |
CN102002000B true CN102002000B (en) | 2012-07-25 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN2010105488085A Expired - Fee Related CN102002000B (en) | 2010-11-18 | 2010-11-18 | Method for producing 5,5-dimethyl hydantoin |
Country Status (1)
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CN (1) | CN102002000B (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104557721B (en) * | 2014-12-30 | 2017-12-15 | 沈阳化工研究院有限公司 | A kind of method for producing 5,5 DMHs |
CN108148000B (en) * | 2018-03-20 | 2020-03-27 | 河北利仕化学科技有限公司 | Preparation method of 5, 5-dimethylhydantoin |
CN115703744A (en) * | 2021-11-16 | 2023-02-17 | 吉林市吉化江城油脂化工有限责任公司 | Preparation method of 5,5-dimethylhydantoin |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1356321A (en) * | 2001-12-06 | 2002-07-03 | 天津大学 | Process for preparing 5,5-dimethyl-2,4-imidazolinedione by intermittent presurizing method |
CN1803775A (en) * | 2006-01-23 | 2006-07-19 | 周新基 | Method for preparing 5,5-dimethylhydantion |
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2010
- 2010-11-18 CN CN2010105488085A patent/CN102002000B/en not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1356321A (en) * | 2001-12-06 | 2002-07-03 | 天津大学 | Process for preparing 5,5-dimethyl-2,4-imidazolinedione by intermittent presurizing method |
CN1803775A (en) * | 2006-01-23 | 2006-07-19 | 周新基 | Method for preparing 5,5-dimethylhydantion |
Non-Patent Citations (2)
Title |
---|
崔群等.改进Bucherer-Berg"s法合成乙内酰脲.《南京化工学院学报》.1995,第17卷(第2期),125-129. * |
王笑海 等.DMH的合成及应用.《山东化工》.2000,第29卷(第4期),19-21,15. * |
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Publication number | Publication date |
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CN102002000A (en) | 2011-04-06 |
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Owner name: ZHU LINING Free format text: FORMER OWNER: DAQING JINGJINGYUAN OILFIELD TECHNOLOGY DEVELOPMENT CO., LTD. Effective date: 20120524 |
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C41 | Transfer of patent application or patent right or utility model | ||
C53 | Correction of patent for invention or patent application | ||
CB03 | Change of inventor or designer information |
Inventor after: Ma Zhenyu Inventor after: Wang Jie Inventor after: Ma Lin Inventor after: Zhu Lining Inventor before: Li Benming Inventor before: Song Haoyuan Inventor before: Kong Fanlong Inventor before: Li Yingying Inventor before: Li Nannan Inventor before: Li Dandan Inventor before: Li Ting |
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COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 163853 DAQING, HEILONGJIANG PROVINCE TO: 163000 DAQING, HEILONGJIANG PROVINCE Free format text: CORRECT: INVENTOR; FROM: LI BENMING SONG HAOYUAN KONG FANLONG LI YINGYING LI NANNAN LI DANDAN LI TING TO: MA ZHENYU WANG JIE MA LIN ZHU LINING |
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TA01 | Transfer of patent application right |
Effective date of registration: 20120524 Address after: 163000 Heilongjiang province Daqing City Longfeng District Dragon Road East leader A-30 Door No. 2 Room 301 Applicant after: Zhu Lining Address before: 163853 Heilongjiang city in Daqing province north of Honggang District Zhuang Yuanfeng Road Venture Applicant before: Daqing Well Source Oilfield Technology Development Co., Ltd. |
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Application publication date: 20110406 Assignee: Daqing Jingcheng Chemical Co., Ltd. Assignor: Zhu Lining Contract record no.: 2015990000239 Denomination of invention: Preparation of N,N,N',N',-tetraacetyl-3,5,3',5'-tetrabromo(chloro)-4,4'-diaminodiphenyl methane Granted publication date: 20120725 License type: Exclusive License Record date: 20150427 |
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EC01 | Cancellation of recordation of patent licensing contract |
Assignee: Daqing Jingcheng Chemical Co., Ltd. Assignor: Zhu Lining Contract record no.: 2015990000239 Date of cancellation: 20160612 |
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LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120725 Termination date: 20171118 |