Patent classifications
C
CHEMISTRY; METALLURGY
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C08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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C08J
WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
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5/00
Manufacture of articles or shaped materials containing macromolecular substances
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C08J5/20
Manufacture of shaped structures of ion-exchange resins
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C08J5/22
Films, membranes or diaphragms
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C08J5/2206
based on organic and/or inorganic macromolecular compounds
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C08J5/2275
Heterogeneous membranes
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C08J5/2281
fluorine containing heterogeneous membranes
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