| 主权项 |
1. A filled thermoplastic polyolefin composition consisting essentially of:
(i) from 1 to 30 parts by weight of one or more linear ethylene polymer, one or more substantially linear ethylene polymer, or mixtures thereof characterized as having
(i.a) a density equal to or greater than 0.87 g/cc and(i.b) a MFR equal to or less than 5 g/10 min; (ii) from 2 to 7 parts by weight of plasticizer; (iii) from 70 to 90 parts by weight of particulate filler; and (iv) optionally one or more of a slip agent, an ignition resistant additive, a stabilizer, a colorant, a pigment, an antioxidant, an antistat, a flow enhancer, a mold release, or a nucleating agent;wherein the filled thermoplastic polyolefin composition has a complex viscosity greater than 90,000 Pas as determined by parallel plate dynamic mechanical spectroscopy at 5% strain, 120° C., and 0.1 radians per second, and parts by weight are based on the total weight of the filled thermoplastic polyolefin composition. |
