Title:
MULTIFUNCTIONAL INITIATOR FOR OBTAINING STAR-SHAPED POLYMER BY ANIONIC ROUTE, CORRESPONDING STAR-SHAPED POLYMER ITS PRODUCTION, AND ITS USE
Document Type and Number:
Japanese Patent JP3188611
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a multifunctional initiator for anionic polymerization.
SOLUTION: There is provided an initiator corresponding to the formula: (PA)aNn-nLi+ (wherein PA is a polymer block of a vinylaromatic or diene monomer A; (a) is the number of branches in block PA; N is a crosslinked core comprising no or practically no residual double bonds and has the formula: (PMc)(RLi)p (wherein Mc is a monomer containing at least two polymerizable double bonds per molecule; PMc is a crosslinked core of at least one polymerized monomer Mc, containing 3 to 30% residual double bonds in relation to the initial double bonds originating from the monomer Mc; R is an alkyl, an aryl, an arylalkyl, an alkylaryl a cycloalkyl or an alkenyl; (p) is the number of residual double bonds in PMc which are neutralized by RLi; and (n) is the total number of anionic sites present in the crosslinked core N)).
Inventors:
Pierre Lutz
Paul Lemp
David line
Philip Heim
Pascal Nicole
Bruno Voilemin
Paul Lemp
David line
Philip Heim
Pascal Nicole
Bruno Voilemin
Application Number:
JP21569695A
Publication Date:
July 16, 2001
Filing Date:
August 24, 1995
Export Citation:
Assignee:
ATOFINA
International Classes:
C08F4/00; C08F4/42; C08F4/46; C08F4/48; C08F297/02; C08F297/04; (IPC1-7): C08F4/46; C08F297/02
Domestic Patent References:
| JP63265902A |
Other References:
【文献】米国特許4678837(US,A)
Attorney, Agent or Firm:
Yusuke Hiraki (2 outside)
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