Fiber fleece containing a polymeric reinforcing material, and process for the production of such fleece

US3961107A · kind A · utility

Inventors

• Klaus-Dieter Hammer · Mainz, DE
• Herbert Porrmann · Niedernhausen, DE
• Ludwig Klenk · Obermoschel, DE

Key dates

• Filing date: Nov 11, 1974
• Grant date: Jun 1, 1976
• Expiry date: Nov 11, 1994

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S8/04
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

This invention relates to a fiber fleece based on synthetic fibers and containing a polymeric organic reinforcing material, and having, at a proportion of polymeric elastic reinforcing material of at least 10 per cent by weight and not more than 80 per cent by weight, calculated on the total weight of a base fleece having a density between 0.1 and 0.28 g/cm.sup.3, a tensile strength of at least 0.01 kg/mm.sup.2, a tear propagation resistance of at least 7 kg/mm (according to IUP 8), and a tensile stress or not more than 0.03 kg/mm.sup.2, measured in a tensile elongation test at an elongation of 10 per cent.