Crosslinkable blends of polyolefin elastomers and silane copolymers for increased flexibility cable insulation
US8445786B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 20, 2008 |
| Grant date | May 21, 2013 |
| Priority date | — |
| Expiry date | Jan 4, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2312/08
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Compositions having at least 60 weight percent, based on the total weight of polymers, have at least one silane crosslinkable polyolefin resin and up to about 40 weight percent, based on the total weight of polymers, of at least one polyolefin elastomer resin, wherein the polyolefin polymer elastomer resin has density of less than or equal to about 0.89 g/cm3 and a melt index, I2, of less than about 50 g/10 mm. and which has been prepared using at least one metallocene catalyst provide improved flexibility, especially low temperature flexibility, while maintaining suitable cure performance and strength compared to the silane crosslinkable polymer resin alone. This composition may be used in cables for low temperature service applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.