Vulcanizable selectively hydogenated block copolymer compositions
Abstract
Abstract VULCANIZABLE BLOCK COPOLYMER COMPOSITIONS ARE PROVIDED COMPRISING (1) A SELECTIVELY HYDROGENATED BLOCK COPOLYMER HAVING, PRIOR TO HYDROGENATION, AT LEAST ONE MONO ALPHA ALKENYL ARENE POLYMER BLOCK AND AT LEAST ONE CONJUGATED DIENE POLYMER BLOCK, SAID BLOCK COPOLYMER HAVING BEEN HYDROGENATED TO SATURATE AT LEAST 80% OF THE ALIPHATIC DOUBLE BONDS, AND (2) AN UNSATURATED BLOCK COPOLYMER HAVING AT LEAST ONE MONO ALPHA ALKENYL ARENE POLYMER BLOCK AND AT LEAST ONE CONJUGATED DIENE POLYMER BLOCK. THE COMPOSITIONS MAY BE VULCANIZED WITH ACCELERATED SULFUR SYSTEM OR WITH PEROXIDE SYSTEMS, AND AFTER VULCANIZATION, ARE INSOLUBLE PRODUCTS THAT HAVE EXCELLENT CREEP RESISTANCE AND IMPROVED SOLVENT RESISTANCE.
Inventors
- 👤 La Mare H De
Bibliographic Details
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