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    • 11. 发明授权
    • Liquid developer compositions with oxygen containing copolymers
    • 含有含氧共聚物的液体显影剂组合物
    • US5565297A
    • 1996-10-15
    • US297080
    • 1994-08-29
    • James R. LarsonJohn W. Spiewak
    • James R. LarsonJohn W. Spiewak
    • G03G9/13G03G9/135
    • G03G9/1355G03G9/133Y10S430/105
    • A liquid developer comprised of a liquid, thermoplastic resin particles, a nonpolar liquid soluble charge director comprised of at least one oxygen containing group with from 1 to 5 oxygen atoms covalently bound to a quaternized ammonium nitrogen in an AB diblock copolymer or an ABA triblock copolymer wherein the A block is polar and is an ammonium containing polymer, and the B block is nonpolar and is a nonpolar fluid soluble polymer, and wherein the A blocks possess a number average molecular weight range of from about 200 to about 10,000 and the B blocks possess a number average molecular weight range of from about 2,000 to 50,000 and the ratio of weight average molecular weight M.sub.w to number average molecular weight M.sub.n is 1 to 5.
    • 一种液体显影剂,由液体,热塑性树脂颗粒,非极性液体可溶性电荷导向剂组成,所述非极性液体可溶电荷导向剂由至少一个含有氧的基团组成,所述含氧基团与AB二嵌段共聚物或ABA三嵌段共聚物中的季铵化铵共价结合, 其中A嵌段是极性的并且是含铵聚合物,并且B嵌段是非极性的并且是非极性流体可溶性聚合物,并且其中所述A嵌段具有约200至约10,000的数均分子量范围,并且所述B嵌段 数均分子量范围为约2,000〜50,000,重均分子量Mw与数均分子量Mn的比例为1〜5。