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    • 4. 发明授权
    • Flat particles and process for production thereof
    • 扁平颗粒及其生产方法
    • US07387832B2
    • 2008-06-17
    • US10527636
    • 2003-09-10
    • Toshifumi HashibaKazutoshi HayakawaTakaya SatoHiroshi Yoshida
    • Toshifumi HashibaKazutoshi HayakawaTakaya SatoHiroshi Yoshida
    • B32B5/16
    • C08J3/12C08F8/02C08F8/30C08F2800/20C08J3/24C08J3/246Y10T428/2982Y10T428/2991Y10T428/2998C08F265/04
    • Flaky particles which are produced through easy conversion from mother particles by using an organic compound other than monomers having double bonds as the hardening and crosslinking agent and to which at least one mechanical or functional characteristic selected from among reactivity, close adhesion, and tackiness is imparted by the presence of part of the unreacted reactive groups of the organic compound inside and on the particles; and a process for the production of the flaky particles. More specifically, flaky particles composed of mother particles (A) having functional groups and an organic compound (B) which has groups reactive with the functional groups of the particles (A) and is soluble in a solvent, characterized in that at least part of the functional groups of the mother particles (A) and at least part of the reactive groups of the organic compound (B) react with each other to form crosslinks.
    • 通过使用除了具有双键的单体以外的有机化合物作为硬化和交联剂从母体颗粒中容易地转化并且赋予至少一种选自反应性,密合性和粘性的机械或功能特征而产生的片状颗粒 通过在颗粒内部和之上存在部分未反应的有机化合物的反应性基团; 以及生产片状颗粒的方法。 更具体地说,由具有官能团的母体颗粒(A)和有机化合物(B)组成的片状颗粒具有与颗粒(A)的官能团反应并且可溶于溶剂的组分的有机化合物(B),其特征在于,至少部分 母粒子(A)的官能团和有机化合物(B)的反应性基团的至少一部分彼此反应形成交联。
    • 9. 发明授权
    • Water swellable thermoplastic polyurethane gel bioreactor carrier containing a nutrient substance
    • 含有营养物质的水溶胀热塑性聚氨酯凝胶生物反应器载体
    • US06214619B1
    • 2001-04-10
    • US08990192
    • 1997-12-12
    • Takaya SatoTsutomu UeharaHiroshi Yoshida
    • Takaya SatoTsutomu UeharaHiroshi Yoshida
    • C12N500
    • C02F3/108Y02W10/15
    • A bioreactor carrier is provided using an organic polymer substance having a water absorptivity of 50 to 1,700%, and containing an inorganic salt, organic nitrogen source and/or organic carbon source utilizable as a nutrient by animal cells, plant cells and/or microorganisms which fix to the carrier for uses such as substance production, harmful substance treatment, waste oil treatment, wastewater treatment and deodorization. A preferred polymer substance is a water swellable thermoplastic polyurethane gel having the water absorptivity and a swelling rate of volume of 150 to 4,000%. The polyurethane gel is obtained by reacting together a long-chain diol compound, a short-chain diol compound and a diisocyanate compound. The long-chain diol compound has a number-average molecular weight of 400 to 10,000, and is selected from an ethylene oxide-propylene oxide copolymer having an ethylene oxide content not less than 70% and a polyethylene glycol. The short-chain diol compound has a number-average molecular weight of 30 to 400. The diisocyanate compound has a number-average molecular weight of 100 to 1,000 at an NCO/OH equivalency in the range of 1-5. Microorganisms multiply rapidly at the surface and interior of the carrier. Preferred adherence and proliferation of desired microorganisms is possible by appropriately selecting substances incorporated as microorganism nutrients.
    • 使用具有50至1,700%的吸水率的有机聚合物物质提供生物反应器载体,并且包含可用作动物细胞,植物细胞和/或微生物的植物细胞和/或微生物作为营养物的无机盐,有机氮源和/或有机碳源 确定物质生产,有害物质处理,废油处理,废水处理和除臭等用途的承运人。 优选的聚合物物质是水溶胀性热塑性聚氨酯凝胶,其吸水性和体积溶胀率为150至4,000%。 通过使长链二醇化合物,短链二醇化合物和二异氰酸酯化合物反应而得到聚氨酯凝胶。 长链二醇化合物的数均分子量为400〜10,000,选自环氧乙烷含量不低于70%的环氧乙烷 - 环氧丙烷共聚物和聚乙二醇。 短链二醇化合物的数均分子量为30〜400。二异氰酸酯化合物的NCO / OH当量的数均分子量为100〜1000,为1-5。 微生物在载体的表面和内部迅速繁殖。 通过适当选择作为微生物营养素掺入的物质,所需微生物的优选粘附和增殖是可能的。