Methods of producing highly nucleated syndiotactic polypropylene
US6703434B2 · kind B2 · utility
4Cited by
7References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 12, 2002 |
| Grant date | Mar 9, 2004 |
| Priority date | — |
| Expiry date | Apr 12, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/098
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to methods of producing syndiotactic polypropylene articles through high performance nucleation via the presence of certain novel nucleating agents within molten syndiotactic resins, and subsequently permitting the resultant molten mixture to cool into a selected shape or configuration. Such novel nucleating agents are new classes of hyper-nucleators that promote crystallization within such target syndiotactic resins at levels well above any previously disclosed nucleators. This invention thus also encompasses the articles and compositions of such nucleated syndiotactic polypropylene as well.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.