Roofing compositions comprising linear low density polyethylene
US10619037B2 · kind B2 · utility
3Cited by
0References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 21, 2017 |
| Grant date | Apr 14, 2020 |
| Priority date | — |
| Expiry date | May 9, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2207/066
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Provided is a polymer blend composition comprising linear low density polyethylene, a propylene polymer generally having rubber dispersed therein, and a combination of a propylene copolymer and an ethylene copolymer. In one embodiment, there is provided a polymer blend composition comprising 15 to 75 weight percent of a propylene polymer having from 10-60% crystallinity, 30-50 weight percent of a linear low density polyethylene, and a combination of the propylene copolymer and the ethylene copolymer comprising the remainder of the composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.