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    • 12. 发明授权
    • Polyvinyl ester macromonomer and its uses
    • 聚乙烯醇酯及其用途
    • US5061761A
    • 1991-10-29
    • US588720
    • 1990-09-27
    • Toshiaki SatoTakashi OhnagaKaoru Ikeda
    • Toshiaki SatoTakashi OhnagaKaoru Ikeda
    • C08F8/12C08F290/04
    • C08F290/04C08F8/12C08F8/14C08F8/30C08F8/34C08F2810/30C08F2810/40
    • Provided are polyvinyl ester macromonomers (A) having excellent polymerizability and highly controlled composition, structure and distribution of polymerization degree.Also provided are polyvinyl alcohol macromonomers (B) obtained by solvolysis of the above polyvinyl ester macromonomers (A) and having excellent polymerizability and highly controlled composition, structure and distribution of polymerization degree.Further provided are polymers (C) obtained by polymerization of the above polyvinyl ester macromonomers (A) and containing units from polyvinyl ester macromonomers having highly controlled composition, structure and distribution of polymerization degree. These polymers (C) are useful as compatibility improving agents, surface improving agents and like agents.Still further provided are polymers (D) obtained by solvolysis of the above polymers (C) or by polymerization or copolymerization of the above polyvinyl alcohol macromonomers (B) and containing units from polyvinyl alcohol macromonomers having highly controlled composition, structure and distribution of polymerization degree. These polymers (D) are useful for decreasing viscosity of aqueous solutions of polymers at high concentrations, improving surface, preventing static charge and the like.
    • 提供具有优异的聚合性和高度控制的聚合度的组成,结构和分布的聚乙烯基酯大分子单体(A)。 还提供了通过溶剂分解上述聚乙烯基酯大分子单体(A)获得的具有优异的聚合性和高度控制的聚合度的组成,结构和分布的聚乙烯醇大分子单体(B)。 还提供了通过聚合上述聚乙烯基酯大分子单体(A)并含有具有高度控制的聚合度组成,结构和分布的聚乙烯基酯单体的聚合物(C)。 这些聚合物(C)可用作相容性改善剂,表面改性剂等。 还提供了通过溶剂分解上述聚合物(C)或通过上述聚乙烯醇大分子单体(B)的聚合或共聚得到的聚合物(D)和含有高度控制组成,聚合度结构和分布的聚乙烯醇大分子单体的单元 。 这些聚合物(D)可用于降低高浓度聚合物的水溶液粘度,改善表面,防止静电荷等。