-
公开(公告)号:US4857080A
公开(公告)日:1989-08-15
申请号:US127946
申请日:1987-12-02
CPC分类号: B01D69/02 , B01D67/0072 , B01D69/12 , B01D71/022 , C01B3/503 , B01D2325/022 , C01B2203/0405 , C01B2203/0465 , C01B2203/0475
摘要: An ultrathin, high-flux composite membrane for use in gas separation. The membrane comprises a metal layer, typically 500.ANG. or less thick on a microporous support. The support may be as asymmetric Loeb-Sourirajan type membrane or a two-layer composite of a microporous substrate with a very thin sealing layer. The support gives mechanical strength to the membrane but does not contribute significantly to the selectivity. Optionally the metal layer may be overcoated with a second polymeric sealing layer to plug any defects and to protect the fragile surface from mechanical damage. The membrane is particularly useful in the purfication of hydrogen.
摘要翻译: 用于气体分离的超薄,高通量复合膜。 该膜包含金属层,在微孔载体上通常为500埃或更小。 载体可以是非对称的Loeb-Sourirajan型膜或具有非常薄的密封层的微孔基材的双层复合物。 该载体对膜产生机械强度,但对选择性没有显着影响。 可选地,金属层可以用第二聚合物密封层覆盖以堵塞任何缺陷并保护易碎表面免受机械损伤。 该膜在氢的净化中特别有用。
-
2.
公开(公告)号:US5613958A
公开(公告)日:1997-03-25
申请号:US469178
申请日:1995-06-06
申请人: Frank Kochinke , William R. Pfister , Jenny Louie , Dan Arenson
发明人: Frank Kochinke , William R. Pfister , Jenny Louie , Dan Arenson
CPC分类号: A61K9/7084 , Y10S514/947
摘要: A transdermal delivery system for the modulated administration of drugs is described. The drug delivery device comprises a backing; a drug reservoir containing the drug, a plasticizer-type enhancer, a solvent-type enhancer, and optionally, a gelling agent; a non-rate-controlling membrane; and an adhesive layer containing a plasticizer-type enhancer. This drug delivery system is particularly useful for the administration of tolerance-inducing drugs, for example, vasodilators, such as isosorbide dinitrate.
摘要翻译: 描述了用于调节药物给药的透皮递送系统。 药物递送装置包括背衬; 含有药物的药物储存器,增塑剂型增强剂,溶剂型增强剂和任选的胶凝剂; 非速率控制膜; 和含有增塑剂型增强剂的粘合剂层。 该药物递送系统特别可用于施用耐受诱导药物,例如血管扩张剂,例如硝酸异山梨酯。
-