发明名称 |
Method for improved the handling heat-resistance of the ethylene-vinyl alcohol copolymer |
摘要 |
The present invention relates to a method for increasing the heat-resistant of ethylene-vinyl alcohol copolymer (EVOH), the method is characterized by using a mixture of acetic acid, magnesium dihydrogen phosphate, and potassium dihydrogen phosphate at a certain ratio as an acid-treating solution in the acid-treating procedure of a process for preparing EVOH. The EVOH produced by the method of the present invention exhibits an excellent heat-resistance and does not become yellowing attributed to the elevated processing temperature. Also, the EVOH generated by the method of the present invention exhibits a uniform heat-resistance since the additives are dispersed evenly in the EVOH.
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申请公布号 |
US7186775(B2) |
申请公布日期 |
2007.03.06 |
申请号 |
US20040503949 |
申请日期 |
2004.08.19 |
申请人 |
CHANG CHUN PETROCHEMICAL CO., LTD. |
发明人 |
TSAI JING JIN;LIN LI SHING;CHANG HUAN MING;FAN KUANG HUI;LIN WENG SHING |
分类号 |
C08F6/00;C08F6/28;C08F8/00;C08F216/00;C08G63/48;C08K3/32;C08L29/04 |
主分类号 |
C08F6/00 |
代理机构 |
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代理人 |
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地址 |
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