Patent · US Active

Composite material and method for making

US9120251B2 · kind B2 · utility

0Cited by

10References

14Claims

0Family size

Assignee

E.I. DU PONT DE NEMOURS AND COMPANY · US

Inventors

Jill A. Conley · Midlothian, US
Brian E. Foy · Newark, US

Key dates

Filing date	Dec 10, 2012
Grant date	Sep 1, 2015
Priority date	—
Expiry date	Apr 28, 2034

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB29C48/04
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

This invention relates to an improved method for making composite structures by dispersing a high tenacity fiber such as aramid in a polymeric matrix to form a premix, combining the premix with a natural fiber such as wood flour and extruding the resulting mixture through a fiber alignment plate and die such that the fibers are substantially aligned in the flow direction of the extrudate.

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