CN1160321C - 制备联二脲的方法 - Google Patents
制备联二脲的方法 Download PDFInfo
- Publication number
- CN1160321C CN1160321C CNB021134995A CN02113499A CN1160321C CN 1160321 C CN1160321 C CN 1160321C CN B021134995 A CNB021134995 A CN B021134995A CN 02113499 A CN02113499 A CN 02113499A CN 1160321 C CN1160321 C CN 1160321C
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- Prior art keywords
- condensation
- butanone
- solution
- ketazine
- reaction
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
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Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CNB021134995A CN1160321C (zh) | 2002-03-22 | 2002-03-22 | 制备联二脲的方法 |
Applications Claiming Priority (1)
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CNB021134995A CN1160321C (zh) | 2002-03-22 | 2002-03-22 | 制备联二脲的方法 |
Publications (2)
Publication Number | Publication Date |
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CN1374295A CN1374295A (zh) | 2002-10-16 |
CN1160321C true CN1160321C (zh) | 2004-08-04 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CNB021134995A Expired - Fee Related CN1160321C (zh) | 2002-03-22 | 2002-03-22 | 制备联二脲的方法 |
Country Status (1)
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CN (1) | CN1160321C (zh) |
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2002
- 2002-03-22 CN CNB021134995A patent/CN1160321C/zh not_active Expired - Fee Related
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Publication number | Publication date |
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CN1374295A (zh) | 2002-10-16 |
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C53 | Correction of patent of invention or patent application | ||
CB03 | Change of inventor or designer information |
Inventor after: Luo Yun Inventor after: Sun Yonggui Inventor after: Fu Yongkuan Inventor after: Chen Hua Inventor after: Yang Niandong Inventor after: Zhang Kairong Inventor after: Guo Jinchun Inventor after: Xu Caiqiong Inventor before: Sun Yonggui Inventor before: Fu Yongkuan Inventor before: Chen Hua Inventor before: Yang Niandong Inventor before: Zhang Kairong Inventor before: Guo Jinchun Inventor before: Xu Caiqiong |
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COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: SUN YONGGUI FU YONGKUAN CHEN HUA; YANG NIANDONG ZHANG KAIRONG GUO JINCHUN XU CAIQIONG TO: LUO YUN SUN YONGGUI FU YONGKUAN CHEN HUA; YANG NIANDONG ZHANG KAIRONG GUO JINCHUN XU CAIQIONG |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C56 | Change in the name or address of the patentee |
Owner name: YIBIN TIANYUE CHEMICAL CO., LTD. Free format text: FORMER NAME OR ADDRESS: YIBIN TIANYUAN GROUP CO., LTD. |
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CP01 | Change in the name or title of a patent holder |
Address after: Jiangbei District, Yibin City, Sichuan Province Patentee after: Yibin sky Chemical Co., Ltd. Address before: Jiangbei District, Yibin City, Sichuan Province Patentee before: Tianyuan Group Co., Ltd., Yibin |
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ASS | Succession or assignment of patent right |
Owner name: YIBIN TIANYUAN GROUP CO., LTD. Free format text: FORMER OWNER: YIBIN TIANYUE CHEMICAL CO., LTD. Effective date: 20080321 |
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Effective date of registration: 20080321 Address after: Jiangbei District, Yibin City, Sichuan Province Patentee after: YiBin TianYuan Group Co., Ltd. Address before: Jiangbei District, Yibin City, Sichuan Province Patentee before: Yibin sky Chemical Co., Ltd. |
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CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20040804 Termination date: 20210322 |
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CF01 | Termination of patent right due to non-payment of annual fee |