Structures and fabricated articles having shape memory made from alpha -olefin/vinyl or vinylidene aromatic and/or hindered aliphatic vinyl or vinylidene interpolymers

摘要

The present invention pertains to structures and fabricated articles having shape/reshape behavior (and processes for their preparation) comprising; (A) from about 1 to 100 wt % (based on the combined weights of Components A and B) of at least one substantially random interpolymer having an I2 of 0.1 to about 1,000 g/10 min and an Mw/Mn of from about 1.5 to about 20, which comprises; (1) from about 38 to about 65 mol % of polymer units derived from; (a) at least one vinyl or vinylidene aromatic monomer, or (b) at least one hindered aliphatic or cycloaliphatic vinyl or vinylidene monomer, or (c) a combination of at least one aromatic vinyl or vinylidene monomer and at least one hindered aliphatic or cycloaliphatic vinyl or vinylidene monomer, and (2) from about 35 to about 62 mol % of polymer units derived from ethylene and/or at least one C3-20 alpha -olefin; and (B) from 0 to about 99 wt % (based on the combined weights of Components A and B) of at least one polymer other than that of Component A; and (C) from 0 to about 50 % by weight (based on the combined weights of components A, B, C and D) of at least one tackifier; and (D) from 0 to about 80% by weight (based on the combined weights of components A, B, C and D) of at least one filler.