Clay-titanium tetrachloride catalyst and the preparation thereof
US6613711B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 31, 2002 |
| Grant date | Sep 2, 2003 |
| Priority date | — |
| Expiry date | Feb 22, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F110/02
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention provides a clay-titanium tetrachloride catalyst used for the preparation of polyolefine/clay composite materials, comprising: 1) a phyllosilicate; 2) a magnesium compound selected from the group consisting of MgCl2, Mg(OR)2 and MgR2, wherein R is an alkyl group having 1-8 carbon atoms; 3) an aliphatic alcohol which is capable of dissolving the magnesium compound; 4) titanium tetrachloride TiCl4; and optionally 5) an electron-donor reagent selected from the group consisting of an aromatic ester and an aromatic group substituted or cycloalkyl group substituted alkoxy silane. The present invention also provide a method for the prepare of the catalyst. The nanocomposite materials obtained by using the catalyst have tensile strength of 32-50 MPa and Vicat temperature of 131-220° C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.