Polyolefins and method for the production thereof
US6586532B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 20, 2002 |
| Grant date | Jul 1, 2003 |
| Priority date | — |
| Expiry date | Feb 20, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F255/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Process for producing polyolefins, comprising the following steps:a) grafting of acid groups onto polyolefins by means of a graftable monomer bearing at least one functional group chosen from a carbonyl and an acid anhydride, optionally in the presence of another graftable monomer bearing a vinyl unsaturated group and, optionally, one or more aromatic rings;b) purification, consisting in removing at least some of the graftable monomer bearing at least one functional group chosen from a carbonyl and an acid anhydride that has not reacted with the polyolefins;c) neutralization of the acid groups by at least one neutralizing agent.Polyolefin obtained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.