| abstract |
PURPOSE: To vulcanize a butyl rubber at a relatively low temperature, by incorporating specified vulcanizing agents and vulcanizing accelerators into the butyl rubber to vulcanize. n CONSTITUTION: 2W20pts.wt. one or more peroxides, as vulcanizing agents, selected from among a hydroperoxide, a ketone peroxide, and H 2 O 2 ; and 0.5W10pts. wt. one or more vulcanizing accelerators selected from among P-benzoquinone dioxime, N,N'-m-phenylenebismaleimide, a polyfunctional acrylic ester (e.g. trimethylolpropane triacrylate), and an organic or inorganic metal salt having an oxidation-reduction effect (e.g. cobalt naphthenate), are incorporated into 100pts. wt. butyl rubber having, if necessary, a filler, a softener, and other optional components incorporated therein or rubber-based polymer composed mainly of the above butyl rubber, to vulcanize at 0W70°C. n COPYRIGHT: (C)1985,JPO&Japio |