THIN FILM COMPOSITE MEMBRANE PREPARED BY SUSPENSION DEPOSITION

THIN FILM MEMBRANES OF POLYUREA, POLYUREA-POLYURETHANE ALLOY, POLYUREA-POLYUREA/URETHANE ALLOY OR POLYUREA/URETHANE ARE PREPARED BY DEPOSITION OF A THIN FILM OF POLYUREA/URETHANE ON A THICK PERMEABLE SUPPORT LAYER BY THE TECHNIQUE OF PREPARING A SUSPENSION OF THE POLYUREA/URETHANE IN A SOLVENT WHICH...

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1. Verfasser:	ROBERT CHARLES SCHUCKER
Format:	Patent
Sprache:	eng
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING APPARATUS THEREFOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COMPOSITIONS BASED THEREON CRACKING HYDROCARBON OILS FUELS GENERAL METHODS OF ORGANIC CHEMISTRY LUBRICANTS MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY MINERAL WAXES ORGANIC CHEMISTRY ORGANIC MACROMOLECULAR COMPOUNDS PEAT PERFORMING OPERATIONS PETROLEUM, GAS OR COKE INDUSTRIES PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVEHYDROGENATION, OLIGOMERISATION, POLYMERISATION RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, ORGASES REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS REFORMING OF NAPHTHA SEPARATION SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS SPRAYING OR ATOMISING IN GENERAL TECHNICAL GASES CONTAINING CARBON MONOXIDE THEIR PREPARATION OR CHEMICAL WORKING-UP THEIR RELEVANT APPARATUS TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Zusammenfassung:	THIN FILM MEMBRANES OF POLYUREA, POLYUREA-POLYURETHANE ALLOY, POLYUREA-POLYUREA/URETHANE ALLOY OR POLYUREA/URETHANE ARE PREPARED BY DEPOSITION OF A THIN FILM OF POLYUREA/URETHANE ON A THICK PERMEABLE SUPPORT LAYER BY THE TECHNIQUE OF PREPARING A SUSPENSION OF THE POLYUREA/URETHANE IN A SOLVENT WHICH DOES NOT DISSOLVE THE THICK PERMEABLE SUPPORT LAYER AND PERMITTING THE SOLVENT TO EVAPORATE AND/OR PERMEATE THROUGH THE THICK-PERMEABLE LAYER.