专利名称：Integral asymmetric polyolefin membrane for gas exchange
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
brayヴィーゼ,アルミン ヨハネス ラング
申请号：JP2000503928
tell的过去式
drill是什么意思申请日：19980716fox新闻
西餐厅英语公开号：JP4791632B2
济宁会计培训公开日：
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natal20111012
专利内容由知识产权出版社提供
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.benin
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
衣橱柜代理人：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
