Isotactic-stereoblock polymers of alpha-olefins and process for producing the same
US4522982A · kind A · utility
90Cited by
3References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 6, 1983 |
| Grant date | Jun 11, 1985 |
| Priority date | — |
| Expiry date | Jun 6, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S526/943
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Isotactic-stereoblock polypropylene comprising recurring polypropylene units, said isotactic-stereoblock polypropylene characterized by comprising alternating blocks of monomers having an average block length greater than 2 having methine carbons with the same relative configuration and wherein the methine carbon atoms in adjacent blocks are of opposite configuration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.