MELT-EXTRUDED POLYVINYL ALCOHOL WITH IMPROVED OPTICAL AND OLFACTORY PROPERTIES |
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| 申请号 | PCT/US2007003412 | 申请日 | 2007-02-08 | 公开(公告)号 | WO2007095062A2 | 公开(公告)日 | 2007-08-23 |
| 申请人 | CELANESE INT CORP; LAMBERT GEORGIA LYNN; | 发明人 | LAMBERT GEORGIA LYNN; | ||||
| 摘要 | Methods of reducing yellowness and odor in melt-extruded polyvinyl article include: (a) preparing a polyvinyl alcohol composition; (b) melt-extruding the polyvinyl alcohol composition into a film; and (c) treating the melt-extruded film with elevated levels of UV light, and ozone which have been found to have synergistic effects, especially with respect to yellowness and odor. | ||||||
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| 说明书全文 | |||||||
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