Catalyst and process for preparation of syndiotactic polystyrene
US5045517A · kind A · utility
22Cited by
7References
7Claims
0Family size
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Key dates
| Filing date | Jan 5, 1990 |
| Grant date | Sep 3, 1991 |
| Priority date | — |
| Expiry date | Jan 5, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S526/943
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Syndiotactic polymers of vinyl aromatic monomers are prepared by conducting the polymerization in the presence of a catalytic amount of the reaction product of polymethylaluminoxane and a cyclopentadienyl/titanium complex.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.