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    • 2. 发明授权
    • Additive for coating compositions for adhesion to TPO substrates
    • 用于粘附到TPO基材上的涂料组合物的添加剂
    • US06300414B1
    • 2001-10-09
    • US09143156
    • 1998-08-28
    • John D. McGeeDaniel BlickberndtCraig SchangWalter H. OhrbomKeri Krueger
    • John D. McGeeDaniel BlickberndtCraig SchangWalter H. OhrbomKeri Krueger
    • C08L6702
    • C08L71/02C08G63/00C08L53/005C09D5/002C09D7/65C09D201/00Y10T428/31909Y10T428/31913Y10T428/31917C08L2666/04C08L2666/24
    • The present invention provides an olefin-based block copolymer that has an olefin block that is substantially saturated and at least one (poly)ester or (poly)ether block. The olefin-based block copolymer of the invention can be prepared by reacting a liquid hydroxyl-functional, saturated or substantially saturated olefin polymer with a chain-extension reagent that is reactive with hydroxyl groups and will polymerize in a head-to-tail arrangement of monomer units. The olefin-based block copolymer of the invention can be used to prepare an adhesion promoter that provides excellent adhesion of subsequent coating layers to olefinic substrates like TPO and superior properties as compared to previously used adhesion promoters containing chlorinated polyolefins. Alternatively, the olefin-based copolymers of the invention can be used as an additive in a curable coating composition to provide excellent adhesion to olefinic substrates like TPO, even when used in very minor amounts compared to the amounts required for previously known agents.
    • 本发明提供一种具有基本上饱和的烯烃嵌段和至少一种(多)酯或(聚)醚嵌段的烯烃基嵌段共聚物。 本发明的烯烃基嵌段共聚物可以通过使液体羟基官能的饱和或基本上饱和的烯烃聚合物与与羟基反应的链延长试剂反应来制备,并且将以头 - 尾排列的方式聚合 单体单元。 与先前使用的含有氯化聚烯烃的粘合促进剂相比,本发明的烯烃基嵌段共聚物可用于制备粘合促进剂,其对随后的涂层提供与TPO等烯烃基材的优异粘附性和优异的性能。 或者,本发明的烯烃基共聚物可用作可固化涂料组合物中的添加剂,以提供与诸如TPO的烯烃基材的优异粘合性,即使以与先前已知的试剂所需量相比非常小的量使用。