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    • 6. 发明申请
    • Copolymers Based on N-Vinylpyrrolidone and Branched Aliphatic Carbonxylic Acids, and Their Use as Solubilizers
    • 基于N-乙烯基吡咯烷酮和支链脂肪族羧酸的共聚物及其作为增溶剂的用途
    • US20080200564A1
    • 2008-08-21
    • US11997208
    • 2006-07-21
    • Maximilian AngelKathrin Meyer-Bohm
    • Maximilian AngelKathrin Meyer-Bohm
    • A61K47/32
    • C08F226/10C08F218/08C08F218/10C08F226/02
    • Copolymers comprising: (a) 60 to 99% by weight of at least one monomer selected from the group consisting of N-vinyllactams, N-vinylamides, and mixtures thereof; (1) 1 to 40% by weight of at least one monomer selected from the group consisting of vinyl esters of aliphatic branched C8-C30-carboxylic acids; (c) 0 to 30% by weight of vinyl acetate; and (d) 0 to 39% by weight of at least one additional free-radically copolymnerizable monomer; wherein the % by weight content of components (a), (b), (c) and (d) totals 100%, and with the proviso that the total amount of component (b) and component (c) combined is 1 to 40% by weight based on the copolymer, are described along with methods of using such copolymers to solubilize substances which are insoluble in water, substances which are only sparingly soluble in water, and combinations thereof.
    • 包括:(a)60至99重量%的至少一种选自N-乙烯基内酰胺,N-乙烯基酰胺及其混合物的单体; (1)1至40重量%的至少一种选自脂肪族支链C 8 -C 30 - 羧酸的乙烯基酯的单体; (c)0至30重量%的乙酸乙烯酯; 和(d)0至39重量%的至少一种另外的自由基共聚单体; 其中组分(a),(b),(c)和(d)的重量含量总计为100%,条件是组合物(b)和组分(c)的总量为1至40 基于共聚物的重量%以及使用这些共聚物溶解不溶于水的物质,仅微溶于水的物质及其组合的方法进行了描述。