| 发明名称 |
Superabsorbent polymers |
| 摘要 |
Polymer compositions which are highly absorbent to aqueous electrolyte solutions are prepared by copolymerization of an ampholytic monomer having the formula of <IMAGE> where one and only one of the substituted groups R1, R2, R3 and R4 must be a vinyl group, the rest can be the same or different and can be hydrogen or a C1-C3 alkyl group; R5 is a phenyl group; n is >/=1 and </=6; and q is 0 or 1; and an olefin monomer having an ethylenic structure as well as by graft copolymerization of at least an olefin monomer having an ethylenic structure and an ampholytic monomer having the formula disclosed above onto a main polymer selected from the group consisting of polysacchardies and polyolefins. Also disclosed is a process for absorbing large quantity of aqueous electrolyte solution employing the polymer compositions.
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| 申请公布号 |
US5225506(A) |
申请公布日期 |
1993.07.06 |
| 申请号 |
US19920873259 |
申请日期 |
1992.04.24 |
| 申请人 |
PHILLIPS PETROLEUM COMPANY |
发明人 |
AHMED, IQBAL;HSIEH, HENRY L. |
| 分类号 |
A61L15/60;C08F8/30;C08F8/34;C08F226/06;C08F251/00;C08F255/00;C08F285/00 |
主分类号 |
A61L15/60 |
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