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    • 34. 发明授权
    • Soil conditioning composition and method of using same
    • 土壤调理组合物及其使用方法
    • US4163657A
    • 1979-08-07
    • US918335
    • 1978-06-23
    • Evan E. KoslowJ. Samuel Batchelder
    • Evan E. KoslowJ. Samuel Batchelder
    • C09K17/32C05F11/00
    • C09K17/32Y10S71/903
    • A soil conditioning composition of extended useful life in soil comprises a substantially linear, substantially water-soluble hydrophilic polymer having a molecular weight greater than 50,000 and at least one functional group disposed along the polymer chain. The polymer chain comprises one or more polymer chain segments characterized by an absence of the functional group therein and a minimum length, the minimum length of the polymer chain segment being at least one micrometer when the polymer chain segment is secured to one of the functional groups only at one end thereof and at least two micrometers when the polymer chain segment is secured to a respective one of the functional groups at each end thereof. The functional group is more capable of attaching the polymer to a solid soil phase than is the polymer chain segment, whereby the polymer includes at least one portion adapted to secure the polymer to a solid soil phase and at least one portion adapted to extend into an aqueous soil phase.
    • 在土壤中延长使用寿命的土壤调理组合物包含分子量大于50,000的基本上线性的基本上水溶性的亲水性聚合物和沿聚合物链设置的至少一个官能团。 聚合物链包含一个或多个聚合物链段,其特征在于其中不存在官能团和最小长度,当聚合物链段固定至一个官能团时,聚合物链段的最小长度为至少一微米 当聚合物链段在其每个端部固定到相应的一个官能团时,在其一端和至少两微米处。 该官能团比聚合物链段更能够将聚合物连接到固体土壤相,由此该聚合物包括适于将聚合物固定到固体土壤相的至少一个部分,并且至少一个部分适于延伸到 水土壤相。