Patent · US Active

Terpolymer for melt blown media for air filtration

US9255349B2 · kind B2 · utility

1Cited by

4References

17Claims

0Family size

Assignee

Borealis AG · AT

Inventors

Henk Van Paridon · Averbode, BE
Antti Tynys · Linz, AT
Joachim Fiebig · Felberleiten, AT
Matthew Parkinson · Linz, AT

Key dates

Filing date	Jan 9, 2012
Grant date	Feb 9, 2016
Priority date	—
Expiry date	Jul 9, 2032

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T442/68
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

Melt-blown fiber comprising a terpolymer of propylene, ethylene and a C4 to C10 α-olefin, wherein further said melt blown fiber and/or said terpolymer has/have a melt flow rate MFR25 (230° C.) of at least 300 g/10 min, the amount of propylene in said terpolymer is at least 90.0 wt.-%, the weight ratio of ethylene and α-olefin within said terpolymer is 1/100 to below 1/1, and the terpolymer has <2,1> regiodefects of below 0.4 mol.-% 0.10.

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