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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2203/00
Foams characterized by the expanding agent
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C08J2203/16
Unsaturated hydrocarbons
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C08J2203/162
Halogenated unsaturated hydrocarbons, e.g. H2C=CF2
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C08J2203/164
Perhalogenated unsaturated hydrocarbons, e.g. F2C=CF2
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