Thermoplastic composition
US6797779B1 · kind B1 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 28, 2003 |
| Grant date | Sep 28, 2004 |
| Priority date | — |
| Expiry date | Jun 2, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08C19/44
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The subject invention discloses a thermoplastic composition which is comprised of a blend of a thermoplastic polyolefin resin and a modified elastomer, wherein said thermoplastic polyolefin resin selected at least from the group of polyethylene, isotactic polypropylene, syndiotactic polypropylene, polypropylene impact copolymers containing about 1-7% by weight of ethylene, butene, hexene, or octene, polyolefin copolymers such as ethylene-butene, hexene, or octene, polybutene, reactor grade modified polypropylene, metallocene polypropylene, oxypolypropylene, wherein said modified elastomer is comprised of a conjugated diene selected from 1,3-butadiene and isoprene, wherein said modified elastomer is highly branched, wherein said modified elastomer is characterized by having a G′ and G″ frequency crossover of no more than 4 radians/s at 100° C., wherein the thermoplastic polyolefin is present in an amount which is within the range of about 5 parts by weight to about 95 parts by weight, and wherein the modified elastomer is present in an amount which is within the range of 5 parts by weight to about 95 parts by weight, based upon the total weight of the thermoplastic c…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.