Calendered films of plasticized blends of plastomer and impact copolymer
US8476360B2 · kind B2 · utility
3Cited by
8References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 11, 2010 |
| Grant date | Jul 2, 2013 |
| Priority date | — |
| Expiry date | Oct 4, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2207/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
This invention relates to a film or sheet and a process to make a film or sheet having a thickness of 0.5 to 35 mils comprising a blend composition comprising: a) 4 to 50 wt % of one or more polypropylene-based TPO(s); and b) 30 to 80 wt % of one or more ethylene plastomer(s); and c) 0.5 to 35 wt % of one or more non-functionalized plasticizer(s) having a kinematic viscosity at 100° C. of 4 to 300 cSt, a pour point of −20° C. or less, and a flash point of 200° C. or more; and d) 0 to 69.5 wt % of one or more filler(s); and wherein the blend composition is calendered into a film or sheet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.