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公开(公告)号:US5236588A
公开(公告)日:1993-08-17
申请号:US777706
申请日:1991-10-18
申请人: Husheng Zhang , Takanori Anazawa , Kazunari Sakai
发明人: Husheng Zhang , Takanori Anazawa , Kazunari Sakai
IPC分类号: B01D67/00 , B01D69/02 , C08F290/14
CPC分类号: B01D67/0006 , B01D69/02 , C08F290/147 , B01D2323/16 , B01D2323/22 , B01D2323/34 , B01D2325/022 , B01D2325/20 , B01D2325/22 , B01D2325/30 , Y10S264/48 , Y10S264/62
摘要: An asymmetric polymer membrane is disclosed characterized by being formed by irradiating a monomer and/or an oligomer polymerizable with an energy ray and having a pore diameter distribution in the thickness direction of the membrane, a ratio of a permeability flux of oxygen to nitrogen of 0.9-1.1, and communicating pores.
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公开(公告)号:US06319404B1
公开(公告)日:2001-11-20
申请号:US08842056
申请日:1997-04-23
IPC分类号: B01D7112
CPC分类号: B01D67/0006 , B01D67/0009 , B01D67/0011 , B01D2323/12 , B01D2323/30 , B01D2325/36 , B01J20/26 , B01J20/28021 , B01J20/28023 , B01J20/28033 , B01J20/2808 , C08J9/286 , Y10T428/249979
摘要: A porous material is disclosed, made of a semi IPN type polymer alloy of a crosslinked polymer (A) obtained by the crosslinking polymerization of a crosslinking-polymerizable vinyl monomer and/or oligomer (a) with a non-crosslinked polymer (D) which is soluble in a solvent (B) capable of dissolving said monomer and/or oligomer (a) therein and subjecting said crosslinked polymer (A) to gelation but is insoluble in a coagulating solution (C) which is compatible with said solvent (B) but doesn't subject said crosslinked polymer (D) to gelation. A porous material excellent in mechanical strength as well as in heat resistance can be prepared. Various functional groups can be introduced into the surface of the porous material. Further, the pore diameter can be easily controlled. The porous material of the present invention is excellent in physical properties such as strength, hardness and heat resistance as well as in chemical and biological properties such as non-adsorptivity and selective adsorptivity of protein.
摘要翻译: 公开了一种多孔材料,其由通过交联聚合的乙烯基单体和/或低聚物(a)与非交联聚合物(D)的交联聚合获得的交联聚合物(A)的半IPN型聚合物合金制成, 可溶于所述单体和/或低聚物(a)中的溶剂(B),并使所述交联聚合物(A)凝胶化,但不溶于与所述溶剂(B)相容的凝固溶液(C) 但不使所述交联聚合物(D)发生凝胶化。 可以制备机械强度和耐热性优异的多孔材料。 可以将多种官能团引入多孔材料的表面。 此外,可以容易地控制孔径。 本发明的多孔材料的强度,硬度和耐热性以及化学和生物学特性如蛋白质的非吸附性和选择性吸附性等物理性质优异。
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公开(公告)号:US5889073A
公开(公告)日:1999-03-30
申请号:US959981
申请日:1997-10-29
申请人: Husheng Zhang , Takanori Anazawa , Hiroshi Ebato
发明人: Husheng Zhang , Takanori Anazawa , Hiroshi Ebato
IPC分类号: C08J3/28 , C08J5/00 , D01F8/04 , D06M14/26 , D06M14/28 , D06M14/30 , C08F2/46 , C08F16/06 , C08J9/04
摘要: Disclosed is a process for producing a material having hydrophilic surface which comprises forming a hydrophobic photopolymerizable composition comprising a hydrophobic compound (a) having two or more polymerizable unsaturated double bonds per molecule and a photopolymerization initiator into a desired form and irradiating the resultant shape (b) with actinic rays while keeping the surface of the shape (b) in contact with a hydrophilic liquid (d) containing a hydrophilic compound (c) having one or more polymerizable unsaturated double bonds under such conditions that a photopolymerization reaction is prevented from occurring in the hydrophilic liquid (d) except at the interface between the liquid (d) and the shape (b), whereby the shape (b) is cured and, at the same time, the hydrophobic compound (a) is copolymerized with the hydrophilic compound (c) at the interface between the shape (b) and the hydrophilic liquid (d) to chemically bond molecules of the hydrophilic compound (c) to the surface of the hydrophobic shape (b). The process is advantageous in that the kind and density of hydrophilic groups can be easily controlled and the structure and properties inherent in the material formed from the photopolymerizable composition are not impaired.
摘要翻译: 公开了一种具有亲水性表面的材料的制造方法,其包括形成疏水性光聚合性组合物,该组合物包含每分子具有两个以上聚合性不饱和双键的疏水性化合物(a)和光聚合引发剂,并照射所形成的形状(b ),同时保持形状(b)的表面与含有具有一个或多个可聚合不饱和双键的亲水性化合物(c)的亲水性液体(d)接触,所述亲水性化合物(c)在防止光聚合反应发生的条件下 除了液体(d)和形状(b)之间的界面之外的亲水性液体(d),由此形状(b)固化,并且同时疏水性化合物(a)与亲水性化合物 (c)在形状(b)和亲水性液体(d)之间的界面处化学键合亲水性化合物(c)的分子与 疏水形状的表面(b)。 该方法的优点在于可以容易地控制亲水基团的种类和密度,并且不损害由可光聚合组合物形成的材料固有的结构和性质。
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