发明名称 |
Process for preparing star shaped microgels from macromonomers with terminal ethylenic unsaturation |
摘要 |
The present invention is directed to a process for forming star shaped microgels which include a core of crosslinked polymer and multiplicity of substantially linear polymeric arms of macromonomers attached to the core. The process includes polymerizing monoethylenically unsaturated monomers in the presence of a chain transfer agent to form macromonomers each having a terminal polymerizable ethylenically unsaturated group and then polymerizing, in presence of the macromonomers, the monoethylenically unsaturated monomers and multi-olefinic crosslinking monomers. The microgels of the present invention can be used as rheology control agents in waterborne and solvent-borne coatings and in adhesives and cosmetics.
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申请公布号 |
US6653407(B2) |
申请公布日期 |
2003.11.25 |
申请号 |
US20010969672 |
申请日期 |
2001.10.03 |
申请人 |
E. I. DU PONT DE NEMOURS AND COMPANY;COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANIZATION;UNIVERSITY OF MELBURNE |
发明人 |
BERGE CHARLES T.;FRYD MICHAEL;JOHNSON JEFFREY W.;MOAD GRAEME;RIZZARDO EZIO;SCOPAZZI CHRISTOPHER;THANG SAN HOA |
分类号 |
C08F2/38;C08F4/40;C08F265/04;C08F290/04;C08F290/06;C08F293/00;(IPC1-7):C08F2/38 |
主分类号 |
C08F2/38 |
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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