发明名称 |
VERFAHREN ZUR HERSTELLUNG VON POLY(VINYL TRIFLUORACETAT) UND POLY(VINYL TRIFLUORACETAT/VINYL ESTER) COPOLYMERE IN ÜBERKRITISCHEM KOHLENDIOXID |
摘要 |
<p>A method for the production of poly(vinyl trifluoroacetate) and copolymers thereof with vinyl esters is described. Poly(vinyl trifluoroacetate) (PVTFA) is obtained in relatively high yield under mild conditions by using carbon dioxide under supercritical conditions as a solvent. Synthesis of syndiotactic PVTFA on a commercial scale without the use of environmentally-harmful solvents is made possible by the invention, which provides a convenient route to syndiotactic polyvinyl alcohol.</p> |
申请公布号 |
DE69513401(D1) |
申请公布日期 |
1999.12.23 |
申请号 |
DE1995613401 |
申请日期 |
1995.07.06 |
申请人 |
MINNESOTA MINING AND MFG. CO., SAINT PAUL |
发明人 |
EIAN, GILBERT;ELSBERND, CHERYL |
分类号 |
C08F8/12;C08F2/00;C08F16/06;C08F18/08;C08F18/20;(IPC1-7):C08F18/20 |
主分类号 |
C08F8/12 |
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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