Propylene polymers grafted with polyalkenylenes and process for their preparation
US5859139A · kind A · utility
6Cited by
6References
12Claims
0Family size
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Key dates
| Filing date | May 23, 1997 |
| Grant date | Jan 12, 1999 |
| Priority date | — |
| Expiry date | May 23, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2205/03
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Polymers and copolymers of propylene are modified by grafting with polyalkenylenes having a trans double bond content of higher than 30%. The preparation is carried out via thermic treatment of the propylene (co)polymer with said polyalkenylene at a temperature comprised between 200.degree. and 350.degree. C. an the presence of a free radical initiator other than peroxide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.