Structures and fabricated articles having shape memory made from .alpha.-olefin/vinyl or vinylidene aromatic and/or hindered aliphatic vinyl or vinylidene interpolymers
US6156842A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 10, 1999 |
| Grant date | Dec 5, 2000 |
| Priority date | — |
| Expiry date | Mar 10, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2929
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention pertains to structures and fabricated articles having shape/reshape behavior (and processes for their preparation) comprising; PA1 (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 I.sub.2 of 0.1 to about 1,000 g/10 min and an M.sub.w /M.sub.n of from about 1.5 to about 20, which comprises; PA2 (1) from about 38 to about 65 mol % of polymer units derived from; PA3 (a) at least one vinyl or vinylidene aromatic monomer, or PA3 (b) at least one hindered aliphatic or cycloaliphatic vinyl or vinylidene monomer, or PA3 (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 PA2 (2) from about 35 to about 62 mol % of polymer units derived from ethylene and/or at least one C.sub.3-20 .alpha.-olefin; and PA1 (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 PA1 (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 PA…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.