发明名称 |
PROCESSO PARA PREPARACAO DE ESTRUTURA DE DIFLUORETO DE POLIVINILIDENO,ESTRUTURA DE DIFLUORETO DE POLIVINILIDENO E MEMBRANA MICROPOROSA DE DIFLUORETO DE POLIVINILIDENO |
摘要 |
<p>A polyvinylidene difluoride structure with a critical surface energy of at least 80 dynes/cm and a method of making such a structure comprising the steps of contacting a polyvinylidene difluoride structure with an alkalized solution, such as potassium hydroxide, to form activated sites on the surface of the structure; rinsing the activated structure to remove residual alkali; contacting the rinsed, activated structure with a solution of a polymerization initiator, such as potassium peroxydisulfate, and a polymerizable vinylic monomer, such as acrylic acid; and polymerizing and grafting the monomer to the activated structure to form a polyvinylidene difluoride structure with a critical surface energy of at least 80 dynes/cm.</p> |
申请公布号 |
BR8702172(A) |
申请公布日期 |
1988.02.17 |
申请号 |
BR19878702172 |
申请日期 |
1987.04.30 |
申请人 |
PALL CORPORATION |
发明人 |
IRVING B. JOFFEE;PETER JOHN DEGEN;FREDERICK ANTHONY BALTUSIS |
分类号 |
C08J9/34;B01D39/16;B01D67/00;B01D71/34;B01D71/78;C08J7/16;C08J9/36;D06M13/02;D06M13/184;D06M13/203;D06M13/224;D06M14/10;D06M101/00;D06M101/16;D06M101/18;(IPC1-7):C08J3/24;C08J5/22 |
主分类号 |
C08J9/34 |
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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