Process for separating isotactic and atactic polypropylenes
US4256874A · kind A · utility
0Cited by
10References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 26, 1979 |
| Grant date | Mar 17, 1981 |
| Priority date | — |
| Expiry date | Jan 26, 1999 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F6/12
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Isotactic and atactic polypropylene of acceptable purity are obtained by contacting the polymerized polymer with a mixture of hydrocarbon, alcohol, organic acid and diketone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.