
基本信息:
- 专利标题: 聚乙烯醇系膜及其制备方法和由其制备的偏光膜
- 申请号:CN201710392844.9 申请日:2017-05-27
- 公开(公告)号:CN107189293B 公开(公告)日:2020-04-21
- 发明人: 吕惠霞 , 张军华 , 黎园
- 申请人: 中国石油化工集团公司 , 中国石化集团四川维尼纶厂
- 申请人地址: 北京市朝阳区朝阳门北大街22号
- 专利权人: 中国石油化工集团公司,中国石化集团四川维尼纶厂
- 当前专利权人: 中国石油化工集团公司,中国石化集团四川维尼纶厂
- 当前专利权人地址: 北京市朝阳区朝阳门北大街22号
- 代理机构: 重庆强大凯创专利代理事务所
- 代理人: 王典彪; 文怡然
- 主分类号: C08L29/04
- IPC分类号: C08L29/04 ; B29D7/01 ; G02B5/30
The invention relates to the technical field of preparation of thin films or sheets, in particular to a polyvinyl alcohol membrane and a preparation method thereof as well as a polarizing film prepared by the polyvinyl alcohol membrane. A membrane preparing stock solution is prepared from the following raw materials: a plasticizer, a surfactant, an antioxidant and polyvinyl alcohol; any surface fluctuation height of the prepared polyvinyl alcohol membrane is smaller than or equal to 20nm; in addition, any areas of the polyvinyl alcohol membrane have identical surface morphology. The polarizing film is prepared by adopting the polyvinyl alcohol membrane, so that the membrane is not easy to break in the preparation process, and uniform tension and dyeing are ensured.
公开/授权文献:
- CN107189293A 聚乙烯醇系膜及其制备方法和由其制备的偏光膜 公开/授权日:2017-09-22