Vulcanization of halogen containing elastomers with thioalkanoic acids and their salts and uncured and cured products thereof
Abstract
Abstract A NEW METHOD FOR VULCANIZING EPIHALOHYDRINE ELASTOMERS EMPLOYS, AS ESSENTIAL VULCANIZATION INGREDIENTS, (1) A THIOALKANOIC ACID OR ITS METAL SALTS SUCH AS THIODIPROPIONIC ACIDS, METHYLENE-BIS-THIOPROPIONIC ACID, THIODIACETIC ACID AND MERCAPTOACETIC ACID OR THE CORRESPONDING SODIUM OR LEAD SALTS, AND (2) A TERTIARY AMINE, PARTICULARLY THE COMPOUND 1,4-DIAZA (2.2.2) BICYCLOOCTAE. HEN THE ACID FORM OF INGREDIENT (1) IS EMPLOYED IT IS NECESSARY TO ADD A THIRD COMPONENT WHICH IS A METAL BASE COMPOUND SUCH AS AN ALKALI METAL CARBOXYLATE, LEAD OXIDE, ETC. WHEN A METAL SALT OF A THIOALKANOIC ACID INGREDIENT (1) SUCH AS DISODIUM THIODIPROPIONATE IS EMPLOYED THE THIRD COMPONENT IS UNNECESSARY. THE VULCANIZING SYSTEM POVIDES VERY FAST AND ADJUSTABLE CURE CYCLES PRODUCING VULCANIZATES OF LOW ODOR AND OF EXCELLENT PHYSICAL PROPERTIES.
Inventors
- 👤 P Nicholas
Bibliographic Details
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