专利名称：Integral asymmetric polyolefin membrane for gas exchange总经理室
祝朋友生日快乐的祝福语发明人：マルクス オスカー ミュラー,エーリッヒ ケスラー,ラルフ ライナー ホルンシャイト,フランク
时代前进ヴィーゼ,アルミン ヨハネス ラング
申请号：JP2000503928
本机ip海阳之窗官网申请日：19980716
公开号：JP4791632B2
公开日：
水利行业20111012
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摘要：Process for producing hydrophobic polyolefinic membranes for gas exchange via thermally induced liquid-liquid pha paration is disclod. A solution of at least one polyolefin in a solvent system, of a compound A and a compound B having a viscosity less than 60 mPa s, is extruded to form a shaped object. The compound A is a solvent and compound B preferably a non-solvent of the polymer, and the boiling point of compound A is at least 50° C. higher than that of compound B. After the shaped object leaves the die, at least one surface thereof is subjected to an atmosphere promoting evaporation of compound B, and the shaped object is subquently cooled until the pha paration and solidification of the high-polymer-content pha take place. The integrally asymmetrical membrane producible in this manner has a porosity of greater than 50% to 75% by volume, a sponge-like, open-pored, microporous support layer without macrovoids and on average isotropic pores, and at least one paration layer with pores <100 nm, if any. The membrane is preferably ud for blood oxygenation.
驴肉馅饺子怎么调馅申请人：メムブラーナ ゲゼルシャフト ミット ベシュレンクテル ハフツング
代理人：矢野 敏雄，久野 琢也,アインゼル・フェリックス＝ラインハルト更多信息请下载全文后查看
