发明名称 |
Process for producing an expanded seed copolymer and product therefrom |
摘要 |
An improved process for the manufacture of crosslinked copolymer particles from seed particles by imbibing a monomer therein and polymerizing the same under controlled suspension conditions wherein said improvement comprises expanding the seed in staged or sequential steps of feeding lower levels of crosslinking monomers in the early stages and preferably higher levels of crosslinking monomers at later stages of polymerization.
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申请公布号 |
US4582859(A) |
申请公布日期 |
1986.04.15 |
申请号 |
US19830557699 |
申请日期 |
1983.12.02 |
申请人 |
ROHM AND HAAS COMPANY |
发明人 |
LEIN, JR., GEORGE M.;HOWELL, THOMAS J.;BARRETT, JAMES H. |
分类号 |
C08F257/02;(IPC1-7):C08J9/16;C08J9/22 |
主分类号 |
C08F257/02 |
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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