CHLOROSULFONATED POLYMER COMPOSITION

PURPOSE:To suppress foaming during vulcanization, to reduce the amount of an acid acceptor required and to improve the oil resistance etc. of a vulcanizate, by using a polymer having a limited sulfur content and a limited chlorine content in vulcanizing a chlorosulfonated polymer with an organic per...

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Bibliographic Details
Main Authors KANESHIGE YOSUKE, KANESAKA JUNICHIRO, ISHIDA YOSHIAKI, NAKAGAWA TATSUJI
Format Patent
LanguageEnglish
Published 15.08.1988
Subjects
CHEMISTRY
COMPOSITIONS BASED THEREON
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
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Summary:PURPOSE:To suppress foaming during vulcanization, to reduce the amount of an acid acceptor required and to improve the oil resistance etc. of a vulcanizate, by using a polymer having a limited sulfur content and a limited chlorine content in vulcanizing a chlorosulfonated polymer with an organic peroxide. CONSTITUTION:A polymer such as polyethylene or an ethylene/butene-1 copolymer is chlorinated and chlorosulfonated with both of chlorine and sulfur dioxide gas or both of chlorine and sulfuryl chloride or the like to produce a chlorosulfonated polymer of a sulfur content of 0.25-0.7wt.% and a chlorine content of 20-50wt.%. 100pts.wt. this chlorosulfonated polymer is mixed with 0.1-20pts.wt. organic peroxide (e.g., Percumyl, trademark), 0.1-15pts.wt. crosslinking aid (e.g., triallyl isocyanurate) and 1-30pts.wt. acid acceptor (e.g., calcium hydroxide). A vulcanizate of the obtained composition is excellent in compression set etc. and can be suitably used for hoses, gaskets, etc.
Bibliography:Application Number: JP19870028312