Aromatic polyamide staple fiber bundles of improved dispersibility in viscous matrices and production of fiber-reinforced composites

US5589265A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Richard Neuert · Kelheim, DE
• Gerhard Stein · Kelheim, DE

Key dates

• Filing date: Jan 13, 1995
• Grant date: Dec 31, 1996
• Expiry date: Jan 13, 2015

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/2962
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

Aromatic polyamide staple fiber bundles of improved dispersibility in viscous matrices and production of fiber-reinforced composites Described are bundles of aromatic polyamide staple fibers having a staple length of at least 1 mm which have been provided with an effective amount of an agent which enhances the cohesion of the fiber bundle. The staple fiber bundles are held together by the adhesive before mixing into a matrix material and separate into individual fibers on mixing into the matrix material. There is no need for special mixing apparatus.