Thermoplastic polypropylene blends with mixtures of ethylene/butene and ethylene/octene copolymer elastomers
US5985971A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 29, 1997 |
| Grant date | Nov 16, 1999 |
| Priority date | — |
| Expiry date | Oct 29, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2314/06
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Thermoplastic olefinic, polymer blends which have superior physical properties and adherence for coating materials such as paints are disclosed. The blends may be formed from various combinations of thermoplastic components such as a crystalline isotactic propylene polymers and sequentially polymerized blends of polypropylene and ethylene-propylene copolymers, with elastomeric components such as copolymers of ethylene and butene, and copolymers of ethylene and octene which are produced with metallocene or Kaminsky catalysts. If desired, other components, such as fillers, can be included. The thermoplastic olefinic, polymer blends are suitable for automotive applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.