Patent · US Active

Propylene polymer for high-tenacity fibers and nonwovens

US10023663B2 · kind B2 · utility

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1References

17Claims

0Family size

Assignee

TOTAL RESEARCH & TECHNOLOGY FELUY · BE

Inventors

Peter Geeurickx · Dilbeek, BE
Alain Standaert · Brussels, BE
Jean-Luc Zuliani · Genappe, BE

Key dates

Filing date	Jun 27, 2013
Grant date	Jul 17, 2018
Priority date	—
Expiry date	Jun 25, 2035

Classification

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

Abstract

Propylene polymers having a melt flow index in the range from 3.0 dg/min to 8.0 dg/min can be particularly suited for high-tenacity fibers and yarns and nonwovens. The propylene polymers can be produced by a process that includes polymerizing propylene or propylene and at least one comonomer in presence of a Ziegler-Natta polymerization catalyst, an aluminium alkyl, and hydrogen.

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