发明名称 |
Process for producing an oil sorbent copolymer and the product thereof |
摘要 |
The present invention is directed to a porous copolymer micro-particle having a high oil absorbency. The method of the present invention comprises the steps of: dissolving at least two polyunsaturated monomers in a water-immiscible organic solvent to provide a monomer mixture containing at least about 60%, preferably about 100% by weight polyunsaturated monomers; adding the monomer mixture to an aqueous solution, preferably having an effective amount of a suspension stabilizer dissolved therein, to form an organic/aqueous biphasic liquid system; vigorously agitating the biphasic liquid system at a rate sufficient to cause the water immiscible organic phase to be suspended as micro-droplets in the aqueous phase; continuing vigorous agitating during polymerization of the monomers in the suspended micro-droplets to produce a microporous polymer micro-particle; and separating the microporous polymer micro-particle from the organic solvent to produce a microporous and oil sorbent polymer micro-particle having a mean unit diameter of less than about 25 microns.
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申请公布号 |
US5712358(A) |
申请公布日期 |
1998.01.27 |
申请号 |
US19970811129 |
申请日期 |
1997.03.03 |
申请人 |
AMCOL INTERNATIONAL CORPORATION |
发明人 |
SOJKA, MILAN F. |
分类号 |
B01J20/26;B01J20/28;B01J20/30;C08F2/06;C08F2/18;C08F220/18;C08F220/20;C08F220/28;C08F220/40;C08F222/10;C09K3/32;(IPC1-7):C08F20/10 |
主分类号 |
B01J20/26 |
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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