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    • 8. 发明申请
    • AQUEOUS DISPERSIONS CONTAINING CRYSTALLISABLE BLOCK COPOLYMERS
    • 含有可溶性嵌段共聚物的水性分散体
    • US20110207871A1
    • 2011-08-25
    • US12671887
    • 2008-07-31
    • John GeurtsMichael Arnoldus Jacobus SchellekensTijs NabuursGerardus Comelis Overbeek
    • John GeurtsMichael Arnoldus Jacobus SchellekensTijs NabuursGerardus Comelis Overbeek
    • C08F2/22C08L53/00
    • C08F2/18C08F2/38C08F293/005C08F2438/03C08L53/00C09D153/00C08L2666/02
    • An aqueous dispersion comprising a crystallisable vinyl block copolymer-polymer which comprises: i) a vinyl block copolymer comprising at least blocks [A]x [B]y , wherein at least a crystallisable block [A] is obtained by a controlled radical polymerisation of at least one vinyl monomer via a reversible addition-fragmentation chain transfer (RAFT) mechanism in solution, in the presence of a control agent and a source of free radicals; and wherein the vinyl block copolymer comprises 2 to 50 wt % of vinyl monomers bearing at least a crystallisable side chain by weight of the vinyl block copolymer-polymer; wherein crystallisable block [A] has an average degree of polymerisation x, wherein x is an integer in the range of from 3 to 80; wherein block [B] has an average degree of polymerisation y, wherein y is an integer ≦3; and ii) a vinyl polymer [P] obtained by the free radical emulsion polymerisation of one or more vinyl monomers in the presence of the vinyl block copolymer; and wherein the block copolymer:polymer weight ratio is in the range of from 10:90 to 70:30.
    • 包含可结晶乙烯基嵌段共聚物 - 聚合物的水分散体,其包含:i)至少包含嵌段[A] x [B] y的乙烯基嵌段共聚物,其中至少可结晶嵌段[A]通过受控自由基聚合 至少一种乙烯基单体通过溶解中的可逆加成 - 断裂链转移(RAFT)机理,在控制剂和自由基源的存在下进行; 并且其中所述乙烯基嵌段共聚物包含2-50重量%的至少具有乙烯基嵌段共聚物 - 聚合物重量的可结晶侧链的乙烯基单体; 其中可结晶嵌段[A]具有平均聚合度x,其中x是3至80的整数; 其中嵌段[B]具有平均聚合度y,其中y是整数nlE; 3; 和ii)在乙烯基嵌段共聚物存在下通过一种或多种乙烯基单体的自由基乳液聚合获得的乙烯基聚合物[P]; 并且其中所述嵌段共聚物:聚合物重量比在10:90至70:30的范围内。