发明名称 |
Method for producing saponified ethylene-vinyl acetate copolymer and removal of vinyl acetate therefrom. |
摘要 |
The present invention provides methods for producing an ethylene-vinyl acetate copolymer and a saponified product thereof that can inhibit visible imperfections (particularly discoloration) at the time of molding by improving the process for recovering vinyl acetate. When the alcohol-based solvent to be blown in when recovering vinyl acetate is deoxidized so that its oxygen concentration becomes not more than 60 ppm, discoloration of a molded product of the above saponified product due to oxygen can be inhibited. |
申请公布号 |
GB2364060(A) |
申请公布日期 |
2002.01.16 |
申请号 |
GB20010015990 |
申请日期 |
2001.06.29 |
申请人 |
* KURARAY CO., LTD. |
发明人 |
TAKAHARU * KAWAHARA;TETSUYA * HIKASA |
分类号 |
C08F6/10;C08F6/00;C08F8/12;C08F210/02;C08F216/06;C08F218/08 |
主分类号 |
C08F6/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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