CN107379585B - 水溶性聚乙烯醇薄膜及其制备方法 - Google Patents
水溶性聚乙烯醇薄膜及其制备方法 Download PDFInfo
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- CN107379585B CN107379585B CN201710720294.9A CN201710720294A CN107379585B CN 107379585 B CN107379585 B CN 107379585B CN 201710720294 A CN201710720294 A CN 201710720294A CN 107379585 B CN107379585 B CN 107379585B
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- polyvinyl alcohol
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D7/00—Producing flat articles, e.g. films or sheets
- B29D7/01—Films or sheets
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
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Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201710720294.9A CN107379585B (zh) | 2017-08-21 | 2017-08-21 | 水溶性聚乙烯醇薄膜及其制备方法 |
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CN201710720294.9A CN107379585B (zh) | 2017-08-21 | 2017-08-21 | 水溶性聚乙烯醇薄膜及其制备方法 |
Publications (2)
Publication Number | Publication Date |
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CN107379585A CN107379585A (zh) | 2017-11-24 |
CN107379585B true CN107379585B (zh) | 2018-07-13 |
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CN201710720294.9A Expired - Fee Related CN107379585B (zh) | 2017-08-21 | 2017-08-21 | 水溶性聚乙烯醇薄膜及其制备方法 |
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CN (1) | CN107379585B (zh) |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5223368B2 (zh) * | 1973-11-26 | 1977-06-23 | ||
JPS5852822B2 (ja) * | 1976-03-13 | 1983-11-25 | 日本合成化学工業株式会社 | 二軸延伸ポリビニルアルコ−ルフイルムの製造法 |
CN1011212B (zh) * | 1986-06-03 | 1991-01-16 | 四川省涪陵地区塑料三厂 | 泡管常温双向拉伸制造聚乙烯醇薄膜方法 |
CN102241862A (zh) * | 2010-05-14 | 2011-11-16 | 北京化工大学 | 熔融挤出法制备耐水性聚乙烯醇生物降解薄膜 |
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2017
- 2017-08-21 CN CN201710720294.9A patent/CN107379585B/zh not_active Expired - Fee Related
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CN107379585A (zh) | 2017-11-24 |
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TR01 | Transfer of patent right |
Effective date of registration: 20190522 Address after: 510000 Room 30, Block C, Guangzhou Chemical City, Dongpu Xing Road, Tianhe District, Guangzhou City, Guangdong Province Patentee after: Guangzhou Qihua Chemical Co.,Ltd. Address before: 510000 B1B2, one, two, three and four floors of the podium building 231 and 233, science Avenue, Guangzhou, Guangdong. Patentee before: BOAO ZONGHENG NETWORK TECHNOLOGY Co.,Ltd. Effective date of registration: 20190522 Address after: 510000 B1B2, one, two, three and four floors of the podium building 231 and 233, science Avenue, Guangzhou, Guangdong. Patentee after: BOAO ZONGHENG NETWORK TECHNOLOGY Co.,Ltd. Address before: 418000 No. 180 Huaidong Road, Huaihua City, Hunan Province Patentee before: Huaihua University |
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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: 20180713 Termination date: 20210821 |