Patent · US Expired

Tufting base for carpets made of a spunbonded fabric, a method of manufacturing the base, and a tufting carpet

US4842915A · kind A · utility

19Cited by

3References

6Claims

0Family size

Inventors

Ludwig Hartmann · Wilmington, US
Engelbert Loecher · Worms, DE
Ivo Ruzek · Kaiserslautern, DE
Norbert Weber · Pocking, DE

Key dates

Filing date	Dec 8, 1987
Grant date	Jun 27, 1989
Priority date	—
Expiry date	Dec 8, 2007

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T442/681
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

A spunbonded fabric is described that is made of polyester matrix filaments and a binding component consisting of thermoplastically softenable fibers, filaments or the like, and that is suitable for use as a tufting base. The melting point of the polyester matrix filaments is by at least 90.degree. C. above that of the binding component. In the tufted condition, before the coating of the back, the maximum tensile stretching value of the carpet material is more than 50%.

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