CN1052971C - 工业品高纯度甲萘胺的制备方法 - Google Patents
工业品高纯度甲萘胺的制备方法 Download PDFInfo
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- CN1052971C CN1052971C CN98111180A CN98111180A CN1052971C CN 1052971 C CN1052971 C CN 1052971C CN 98111180 A CN98111180 A CN 98111180A CN 98111180 A CN98111180 A CN 98111180A CN 1052971 C CN1052971 C CN 1052971C
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Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN98111180A CN1052971C (zh) | 1998-03-13 | 1998-03-13 | 工业品高纯度甲萘胺的制备方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN98111180A CN1052971C (zh) | 1998-03-13 | 1998-03-13 | 工业品高纯度甲萘胺的制备方法 |
Publications (2)
Publication Number | Publication Date |
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CN1191860A CN1191860A (zh) | 1998-09-02 |
CN1052971C true CN1052971C (zh) | 2000-05-31 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN98111180A Expired - Fee Related CN1052971C (zh) | 1998-03-13 | 1998-03-13 | 工业品高纯度甲萘胺的制备方法 |
Country Status (1)
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CN (1) | CN1052971C (zh) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0174563A1 (de) * | 1984-09-11 | 1986-03-19 | Bayer Ag | Verfahren zur Herstellung von 1-Naphthylamin |
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1998
- 1998-03-13 CN CN98111180A patent/CN1052971C/zh not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0174563A1 (de) * | 1984-09-11 | 1986-03-19 | Bayer Ag | Verfahren zur Herstellung von 1-Naphthylamin |
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Publication number | Publication date |
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CN1191860A (zh) | 1998-09-02 |
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Legal Events
Date | Code | Title | Description |
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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 | ||
C56 | Change in the name or address of the patentee |
Owner name: CHANG YU CHEMICAL CO., LTD., CHANGZHOU CITY Free format text: FORMER NAME OR ADDRESS: CHANGYU CHEMICAL PLANT, CHANGZHOU CITY |
|
CP03 | Change of name, title or address |
Address after: 213031 Jiangsu city of Changzhou province Longhutang Patentee after: Changzhou Changyu Chemical Co., Ltd. Address before: 213031 Jiangsu city of Changzhou province Longhutang Patentee before: Changyu Chemical Plant, Changzhou City |
|
ASS | Succession or assignment of patent right |
Owner name: CHANGHONG CHEMICAL ENGINEERING TECHNOLOGY DEVELOP Free format text: FORMER OWNER: CHANG YU CHEMICAL CO., LTD., CHANGZHOU CITY Effective date: 20080509 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20080509 Address after: Jiangsu province Changzhou City New District Longhutang No. 17 West Street Patentee after: Changhong Chemical Tech Development Co., Ltd., Changzhou City Address before: Jiangsu city of Changzhou province Longhutang Patentee before: Changzhou Changyu Chemical Co., Ltd. |
|
C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20000531 Termination date: 20130313 |