Patent · US Expired

Lightweight composite material with a thermoset matrix

US5262230A · kind A · utility

15Cited by

6References

5Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Robert Becker · Warsaw, US
Gerd Goldmann · Krefeld, DE
Lothar Preis · Bensberg, DE

Key dates

Filing date	Jun 1, 1990
Grant date	Nov 16, 1993
Priority date	—
Expiry date	Jun 1, 2010

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T442/40
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

Lightweight composite material which contains reinforcing fibres in a thermoset matrix and has been obtained by providing voluminous three-dimensional structures of reinforcing fibres more than 50 mm long, which are in the form of a knitted fabric or loop fabric with a hollow space content of at least 50 vol. %, with a thermosetting resin such that the lightweight composite material contains hollow spaces.

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