发明名称 |
Production of statistical microgel for use, e.g. as a viscosity regulator or impact modifier, involves controlled radical polymerisation of a mixture of mono- and poly-unsaturated monomers in presence of a regulator |
摘要 |
A method (M1) for the production of first generation statistical microgels (I) comprises a stage involving the controlled radical polymerisation of a mixture of (a) mono-unsaturated monomer(s), (b) polyunsaturated monomer(s), (c) a source of free radicals and (d) a polymerisation regulator. Independent claims are also included for (1) a method (M2) for the preparation of 2nd generation statistical microgels by performing M1 as above and then adding the product (I) to mono- or poly-unsaturated monomer(s) in presence of an activator (2) a method (M3) for the preparation of nth generation microgels (I-n) (where n = 2-50) by making an (n-1)-th generation microgel as above and then adding the product to mono- or poly-unsaturated monomer(s) in presence of an activator (3) star-shaped polymers (SP) obtained by a method for the preparation of (I-n) (with n = 2-50) in which the monomer(s) used in stage n is/are mono-unsaturated monomer(s). |
申请公布号 |
FR2843314(A1) |
申请公布日期 |
2004.02.13 |
申请号 |
FR20020009987 |
申请日期 |
2002.08.06 |
申请人 |
RHODIA CHIMIE |
发明人 |
DESTARAC MATHIAS;BAVOUZET BRUNO;TATON DANIEL |
分类号 |
C08F2/38;C08F4/00 |
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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