Process for the preparation of amorphous polymers of propylene
US6391991B1 · kind B1 · utility
1Cited by
4References
13Claims
0Family size
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Key dates
| Filing date | Jul 19, 1995 |
| Grant date | May 21, 2002 |
| Priority date | — |
| Expiry date | Jul 19, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S526/943
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
It is possible to prepare substantially amorphous polymers of propylene endowed with high molecular weights, operating at temperatures of industrial interest, by carrying out the polymerization reaction of propylene in the presence of metallocene catalysts comprising particular bis-indenyl or bis-4,5,6,7-tetrahydroindenyl compounds substituted in the 2-position on the indenyl or tetrahydroindenyl groups.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.