Soft compounds containing elastomeric metallocene polyolefins and
USH1798H · kind H · statutory invention registration
Assignee
Inventor
Key dates
| Filing date | — |
| Grant date | Jul 6, 1999 |
| Priority date | — |
| Expiry date | — |
Classification
- Technology area (CPC —)General
Abstract
A soft multicomponent compound comprising a styrenic block copolymer having good elastomeric properties, a paraffinic oil, a crystalline polyolefin and a metallocene polyolefin having a density from 0.86 to 0.91, a molecular weight distribution less than 3, and good distribution of ethylene and from 12% to 30% by weight of one or more .alpha.-olefin monomers having from 4 to 12 carbon atoms. The metallocene polyolefin partly replaces the styrenic block copolymer in conventional soft compounds and provides the desired softness at significantly lower oil contents, thus avoiding surface tackiness and oil extractability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.