Process for producing chlorosulfonated polyethylene using a mixed solvent
AssigneeToyo Soda Manufacturing Co., Ltd.
InventorsMamoru Narui, Tatsushi Nakagawa, Yasuhiro Sakanaka
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Abstract
Chlorosulfonated polyethylene having excellent properties as elastomer is produced by dissolving polyethylene in a mixed solvent of carbon tetrachloride and a halogenated aromatic compound such as, for example, chlorobenzene and reacting polyethylene with chlorine and sulfuryl chloride or with sulfuryl chloride.
Claims7
A process of producing chlorosulfonated polyethylene by dissolving polyethylene in a mixed solvent and reacting it with either sulfuryl chloride or sulfuryl chloride and chlorine, wherein said mixed solvent comprises carbon tetrachloride and a halogenated aromatic compound selected from the group consisting of chlorobenzene, chlorotoluene, iodobenzene, benzenefluoride and bromobenzene, and further wherein the proportion of said halogenated aromatic compound is between 1.0 and 10.0% by weight of the total amount of mixed solvent.
Dependencies are inferred from the claim text.