B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
182/15.4, 117/88
B01D 69/12 (2006.01) B01D 61/36 (2006.01) B01D 69/14 (2006.01) B01D 71/54 (2006.01) C07C 7/144 (2006.01) C10G 31/11 (2006.01)
Patent
CA 2016960
Composite membranes, processes for their preparation and their use A b s t r a c t Composite membranes of a macroporous filler- containing membrane of at least two incompatible polymers and a pore-free polyurethane membrane applied thereto exhibit an improved action in the removal of benzenes optionally substituted by lower alkyl radicals, hydroxyl, chlorine or bromine from their mixtures with aliphatic and/or cycloaliphatic hydrocarbons, alcohols, ethers, ketones and/or carboxylic acid esters or from effluent. Le A 26 927-US
Dhein Rolf
Hildenbrand Karlheinz
Meister Willi
Nerger Dittmar K.
Aktiengesellschaft Bayer
Dhein Rolf
Fetherstonhaugh & Co.
Hildenbrand Karlheinz
Meister Willi
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