CN1076686A - 气相氟化制备二氟甲烷的改进方法 - Google Patents
气相氟化制备二氟甲烷的改进方法 Download PDFInfo
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- CN1076686A CN1076686A CN 92102368 CN92102368A CN1076686A CN 1076686 A CN1076686 A CN 1076686A CN 92102368 CN92102368 CN 92102368 CN 92102368 A CN92102368 A CN 92102368A CN 1076686 A CN1076686 A CN 1076686A
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
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Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN 92102368 CN1039118C (zh) | 1992-03-23 | 1992-03-23 | 气相氟化制备二氟甲烷的改进方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN 92102368 CN1039118C (zh) | 1992-03-23 | 1992-03-23 | 气相氟化制备二氟甲烷的改进方法 |
Publications (2)
Publication Number | Publication Date |
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CN1076686A true CN1076686A (zh) | 1993-09-29 |
CN1039118C CN1039118C (zh) | 1998-07-15 |
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Application Number | Title | Priority Date | Filing Date |
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CN 92102368 Expired - Lifetime CN1039118C (zh) | 1992-03-23 | 1992-03-23 | 气相氟化制备二氟甲烷的改进方法 |
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CN (1) | CN1039118C (zh) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1330615C (zh) * | 2003-09-10 | 2007-08-08 | 昭和电工株式会社 | 氢氟烃的制造方法,其制品及其用途 |
CN100434166C (zh) * | 2005-09-09 | 2008-11-19 | 北京宇极科技发展有限公司 | 氢氟烃的制备工艺及其专用催化剂的制备方法 |
CN110204414A (zh) * | 2019-06-25 | 2019-09-06 | 福建省杭氟电子材料有限公司 | 一种一氟甲烷的制备方法 |
CN115010576A (zh) * | 2022-07-02 | 2022-09-06 | 浙江三美化工股份有限公司 | 一种二氟甲烷的制备方法 |
-
1992
- 1992-03-23 CN CN 92102368 patent/CN1039118C/zh not_active Expired - Lifetime
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1330615C (zh) * | 2003-09-10 | 2007-08-08 | 昭和电工株式会社 | 氢氟烃的制造方法,其制品及其用途 |
CN100434166C (zh) * | 2005-09-09 | 2008-11-19 | 北京宇极科技发展有限公司 | 氢氟烃的制备工艺及其专用催化剂的制备方法 |
CN110204414A (zh) * | 2019-06-25 | 2019-09-06 | 福建省杭氟电子材料有限公司 | 一种一氟甲烷的制备方法 |
CN115010576A (zh) * | 2022-07-02 | 2022-09-06 | 浙江三美化工股份有限公司 | 一种二氟甲烷的制备方法 |
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Publication number | Publication date |
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CN1039118C (zh) | 1998-07-15 |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
OR01 | Other related matters | ||
ASS | Succession or assignment of patent right |
Owner name: ZHEJIANG LAN ENVIRONMENT-PROTECTION ADVANCED TECH Free format text: FORMER OWNER: ZHEJIANG PROVINCIAL CHEMICAL ENGINEERING RESEARCH INST. Effective date: 20020701 |
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C41 | Transfer of patent application or patent right or utility model | ||
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Effective date of registration: 20020701 Address after: 310023 No. 387 Tianmu Mountain Road, Zhejiang, Hangzhou Patentee after: Zhejiang blue environmental protection hi tech Limited by Share Ltd Address before: Zhejiang province Hangzhou city left behind the entrance of the Provincial Chemical Research Institute Patentee before: Chemical Industry Inst. of Zhejiang Prov. |
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EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Zhejiang Province blue green environmental protection fluorine Materials Co., Ltd Assignor: Zhejiang blue environmental protection hi tech Limited by Share Ltd Contract fulfillment period: 2008.11.1 to 2012.3.22 Contract record no.: 2008330002735 Denomination of invention: Improved gas-phase fluorating process for preparation of difluoromethane Granted publication date: 19980409 License type: Exclusive license Record date: 20081221 |
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CI01 | Correction of invention patent gazette |
Correction item: Patentee Correct: Zhejiang Lantian Environment Protecting Sci-Tech Co., Ltd. False: Zhejiang blue environmental protection hi tech Limited by Share Ltd Number: 36 Volume: 18 |
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LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.11.1 TO 2012.3.22; CHANGE OF CONTRACT Name of requester: ZHEJIANG PROVINCE BLUE GREEN ENVIRONMENTAL PROTECT Effective date: 20081221 |
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Expiration termination date: 20120323 Granted publication date: 19980715 |