Patent · US Expired

Artificial split suede leather and a process for producing same

US4581286A · kind A · utility

5Cited by

2References

12Claims

0Family size

Assignee

Carl Freudenberg · DE

Inventors

Walter Fottinger · Weinheim, DE
Kurt Jorder · Weinheim, DE
Karl-Heinz Morweiser · Birkenau, DE
Erich Fahrbach · Weinheim, DE

Key dates

Filing date	Apr 30, 1985
Grant date	Apr 8, 1986
Priority date	—
Expiry date	Apr 30, 2005

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T442/611
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

An artificial split suede leather, especially for sport or casual style shoes, is a split, needled, nonwoven material of unshrunk fibers containing at least 20% polyamide fibers by weight of the fibers having a trilobate, Y-shaped cross section. In a process of making it, only needling is used for consolidating the fibers. A spherical filler may also be used.

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