CN101492511B - 超高分子量pvp分子链保护性干燥方法 - Google Patents
超高分子量pvp分子链保护性干燥方法 Download PDFInfo
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- CN101492511B CN101492511B CN2009100463854A CN200910046385A CN101492511B CN 101492511 B CN101492511 B CN 101492511B CN 2009100463854 A CN2009100463854 A CN 2009100463854A CN 200910046385 A CN200910046385 A CN 200910046385A CN 101492511 B CN101492511 B CN 101492511B
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Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20040139625A1 (en) * | 2003-01-08 | 2004-07-22 | Dai-Ichi Kogyo Seiyaku Co., Ltd. | Process for preparing vinylpyrrolidone polymer powder |
JP2005343931A (ja) * | 2004-05-31 | 2005-12-15 | Dai Ichi Kogyo Seiyaku Co Ltd | 顆粒状ビニルピロリドン重合体の製造方法 |
CN1821690A (zh) * | 2005-02-14 | 2006-08-23 | 第一工业制药株式会社 | 乙烯基吡咯烷酮系聚合物的干燥方法 |
CN1891737A (zh) * | 2005-07-08 | 2007-01-10 | 第一工业制药株式会社 | 低休止角粉末状乙烯基吡咯烷酮聚合物及其制造方法 |
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2009
- 2009-02-20 CN CN2009100463854A patent/CN101492511B/zh active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20040139625A1 (en) * | 2003-01-08 | 2004-07-22 | Dai-Ichi Kogyo Seiyaku Co., Ltd. | Process for preparing vinylpyrrolidone polymer powder |
JP2005343931A (ja) * | 2004-05-31 | 2005-12-15 | Dai Ichi Kogyo Seiyaku Co Ltd | 顆粒状ビニルピロリドン重合体の製造方法 |
CN1821690A (zh) * | 2005-02-14 | 2006-08-23 | 第一工业制药株式会社 | 乙烯基吡咯烷酮系聚合物的干燥方法 |
CN1891737A (zh) * | 2005-07-08 | 2007-01-10 | 第一工业制药株式会社 | 低休止角粉末状乙烯基吡咯烷酮聚合物及其制造方法 |
Non-Patent Citations (1)
Title |
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JP特开2005343931A 2005.12.15 |
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Denomination of invention: Protective drying method for PVP molecular chain with ultra-high molecular weight Effective date of registration: 20140418 Granted publication date: 20110622 Pledgee: Pudong Shanghai technology financing Company limited by guarantee Pledgor: Shanghai Yuang Waterborne New Material Technology Co., Ltd. Registration number: 2014310000019 |
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