Patent · US Active

Thermally bound non-woven material

US8481437B2 · kind B2 · utility

0Cited by

2References

10Claims

0Family size

Assignee

Carl Freudenberg KG · DE

Inventors

Armin Greiner · Weinheim, DE
Klaus Veeser · Weinheim, DE
Holger Schilling · Heitersheim, DE
Guenter Frey · Schliengen, DE
Ralph Berkemann · Bad Kissingen, DE

Key dates

Filing date	Nov 22, 2011
Grant date	Jul 9, 2013
Priority date	—
Expiry date	Nov 22, 2031

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T442/641
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

The invention relates to a thermally bound non-woven material containing a low-shrinkage dual-component core-sheath fiber consisting of a crystalline polyester core and a crystalline polyester sheath which has a melting point at least 10° C. lower than the core, the heat-shrinkage characteristic of said fiber being less than 10% at 170° C.

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