公开(公告)号：US06576451B1

公开(公告)日：2003-06-10

申请号：US09645358

申请日：2000-08-25

申请人： Tatsuo Sumino ,  Naomichi Mori ,  Tamio Igarashi ,  Hiroyoshi Emori ,  Minoru Kayanoki ,  Takayuki Nakamura ,  Ryuichi Matsuyama ,  Tsutomu Minaki

发明人： Tatsuo Sumino ,  Naomichi Mori ,  Tamio Igarashi ,  Hiroyoshi Emori ,  Minoru Kayanoki ,  Takayuki Nakamura ,  Ryuichi Matsuyama ,  Tsutomu Minaki

IPC分类号： C12N1104

CPC分类号： C02F3/108 ,  C08G18/672 ,  C08G2210/00 ,  C12N11/08 ,  Y02W10/15 ,  C08G18/48

摘要： An oligomer is provided having a polyalkylene glycol main structure, a polymeric double bond group arranged at both ends of the main structure, and a sub-structure arranged between the main structure and each polymeric double bond group. The sub-structures lengthen the main structure, and are composed of a urethane bond and an ethyleneoxy, or a urethane bond, an ethyleneoxy and a propyleneoxy. The introduction of urethane bonds causes crystallization (network formation) with the urethane bonds themselves so that a hydrous gel resulting from polymerizing the oligomer has increased flexibility, strength and erosion resistance. As a result, even though the main structure is lengthened to increase capacity to entrap microorganisms, the strength of the hydrous gel is not reduced. The ethyleneoxy weakens hydrophobicity of urethane regions to improve affinity of the gel for microorganisms. Microorganisms can adhere to and grow on the surface of a hydrous gel produced by polymerizing the oligomer. A hydrous gel containing entrapped microorganisms can be formed by mixing microorganisms with the oligomer and polymerizing. Environmental pollutants can be decomposed using the hydrous gel containing microorganisms.

摘要翻译： 提供了具有聚亚烷基二醇主要结构，布置在主要结构的两端的聚合双键基团和设置在主要结构和每个聚合双键基团之间的子结构的低聚物。 子结构延长主结构，由氨基甲酸酯键和乙烯氧基，氨基甲酸酯键，亚乙基氧基和亚丙氧基构成。 氨基甲酸酯键的引入导致与氨基甲酸酯键本身的结晶（网络形成），使得由低聚物聚合得到的含水凝胶具有增加的柔韧性，强度和耐侵蚀性。 结果，即使主结构被延长以增加捕获微生物的能力，也不会降低含水凝胶的强度。 乙烯氧基减弱氨基甲酸酯区域的疏水性，以提高凝胶对微生物的亲和力。 微生物可以通过聚合低聚物而产生的含水凝胶的表面附着并生长。 可以通过将微生物与低聚物混合并聚合而形成含有夹带微生物的含水凝胶。 环境污染物可以使用含水凝胶微生物分解。