Modified polyolefin particles and process for preparation thereof
US5523358A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 22, 1994 |
| Grant date | Jun 4, 1996 |
| Priority date | — |
| Expiry date | Apr 22, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F255/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process for preparation of modified polyolefin particles which comprises contacting and reacting PA1 (A) 100 wt. parts of polyolefin particles with PA1 (B) 0.01 to 50 wt. parts of at least one ethylenic unsaturated compound selected from the group consisting of carboxyl group-containing ethylenic unsaturated compounds or their carboxylic anhydrides or their carboxylic acid derivatives, hydroxyl group-containing ethylenic unsaturated compounds, amino-group-containing ethylenic unsaturated compounds, and glycidyl group-containing ethylenic unsaturated compounds, in the presence of PA1 (C) more than 10 wt. parts to not more than 50 wt. parts of a medium of a liquid state at ordinary temperature whose solubility in water at 20.degree. C. is 0.5 wt. % or less and which is capable of swelling the polyolefin, and PA1 (D) 0.01 to 10 wt. parts of a radical initiator; and PA1 modified polyolefin particles prepared by the aforesaid process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.