Method of producing swellable, non-aging starch maleates, biologically
degradable starch maleates as well as use
    2.
    发明授权
    Method of producing swellable, non-aging starch maleates, biologically degradable starch maleates as well as use 失效
    生产可膨胀,非老化淀粉马来酸盐,生物降解淀粉马来酸盐以及用途的方法

    公开(公告)号:US6063914A

    公开(公告)日:2000-05-16

    申请号:US13649

    申请日:1998-01-26

    CPC分类号: C08L3/06 A61L15/28 A61L15/60

    摘要: The aging of swellable starch maleates is reduced by reacting with one or more singly and/or multiply functional nucleophiles as in a Michael condensation reaction. Mixtures of mercaptoethanol and 1,2-bis-(2-mercaptoethoxy)-ethane or mixtures of sodium bisulfite and pentaerythrite-tetrakis-(2-mercaptoacetate) are preferred. The decrease of the retention capacity [SRV] in the reaction products after 100 days is preferably

    摘要翻译: 可溶胀淀粉马来酸酯的老化通过与迈克尔缩合反应中的一种或多种单和/或多功能亲核试剂反应来降低。 巯基乙醇和1,2-双 - (2-巯基乙氧基) - 乙烷或亚硫酸氢钠和季戊四醇 - 四(2-巯基乙酸酯)的混合物的混合物是优选的。 100天后反应产物中的保留能力[SRV]的降低优选<10%。 该产品用作可生物降解的非老化超吸收剂。