| 摘要 |
A polyolefin that has been modified with sulphur trioxide/trimethylamine complex is disclosed. The polyolefin may be homopolymer or copolymer of alpha-olefins selected from the group consisting of alpha-olefins having 2-10 carbon atoms, such alpha-olefins being hydrocarbon. Preferred polymers are homopolymer of ethylene or propylene, or copolymers of ethylene and at least one C3 - C10 alpha-olefin. The modified polyolefin is preferably formed by admixing molten polyolefin with 20-2000 ppm of the complex at a temperature of at least 210.degree.C. The modified polyolefin is dyeable, may be used to promote adhesion to the polyolefin and to facilitate retention of additives. The modified polyolefin may be formed into, for example, film and moulded articles. |
