SHEET-LIKE STRUCTURE OF POLYVINYL CHLORIDE, WHICH IS CAPABLE OF ABSORBING WATER VAPOR AND TRANSMITTING WATER VAPOR

摘要

K-2523 SHEET-LIKE STRUCTURE OF POLYVINYL CHLORIDE, WHICH IS CAPABLE OF ABSORBING WATER VAPOR AND TRANSMITTING WATER VAPOR This invention relates to a sheet-like structure of polyvinyl chloride or a copolymer of vinyl chloride, which is capable of absorbing water vapor and transmitting water vapor, with a uniformly incorporated additive composed of polymeric particles of at least one swellable, modified polymer. The invention also relates to a process for manufacturing the sheet-like structure.