| 摘要 |
PURPOSE:The title resin material excellent in balance between hardness and flexibility, resilience, impact resistance, moldability, reworkability during processing, mainly consisting of a butadiene polymer having a specified structure. CONSTITUTION:100pts.wt. polymer resin component comprising 30-90wt% high-trans butadiene polymer obtained by solution-polymerizing a butadiene monomer in a hydrocarbon solvent in the presence of, e.g., a uniform composite catalyst comprising a Ba, Sr or Ca compound, an organolithium compound and/or an organomagnesium compound, etc., and a structure of a trans bond content of 75-95%, a weight-average MW of 30,000-500,000 and a MW distribution of 1.2-5.0 and 70-10wt% trans-isoprene polymer, a trans-polyoctenamer or caprolactone polymer is mixed with, if necessary, 5-100pts.wt. inorganic filler (e.g., TiO2) and 1-30pts.wt. plasticizer.
|
