Patent · US Active

Fibres and nonwoven prepared from polypropylene having a large dispersity index

US8642494B2 · kind B2 · utility

1Cited by

3References

17Claims

0Family size

Assignee

Total Petrochemicals Research Feluy · BE

Inventors

Hugues Haubruge · Walhain, BE
Guillaume Pavy · Brussels, BE
Alain Standaert · Brussels, BE

Key dates

Filing date	Apr 29, 2013
Grant date	Feb 4, 2014
Priority date	—
Expiry date	Apr 29, 2033

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T442/60
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

A catalyst system can include a Ziegler-Natta catalyst, an internal donor, a magnesium halide in active form, and an organoaluminium compound. The Ziegler-Natta catalyst can have a titanium compound and at least one titanium-halogen bond. The internal donor can include at least 80 wt % of an enamino-imine with respect to a total weight of the internal donor. The Ziegler-Natta catalyst and the internal donor can both be supported on the magnesium halide in active form.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.