| 摘要 |
Hot-hardening, reactive compositions based on natural and/or synthetic olefinic, double-bonded elastomers and vulcanizing agents are described that contain at least one fluid polyene with a molecular weight between 400 and 80,000 as well as at least one fluid polybutadiene with a tight molecular weight distribution and a microstructure of 10% to 20% of vinylic 1,2 double bonds, 50% to 60% trans 1,4 double bonds, and 25% to 35% eis 1,4 double bonds. These compositions also contain a vulcanization system made up of sulfur and accelerators and/or quinonoximes, if necessary. Given their tensile shear and peel strengths, these compositions are suited for use as single-component bonding agents, sealants, or coating substances in the construction of automobiles, especially at lower temperatures. |
