Patent · US Active

Continuous pultrusion process for producing high performance structural profiles

US7867568B2 · kind B2 · utility

8Cited by

8References

21Claims

0Family size

Assignee

AIRBUS OPERATIONS LIMITED · DE

Inventors

Roman Hillermeier · Stade, DE
Lars Friedrich · Weinheim, DE

Key dates

Filing date	Jul 26, 2005
Grant date	Jan 11, 2011
Priority date	—
Expiry date	Oct 6, 2026

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/249921
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The invention provides a continuous pultrusion process for producing structural profiles wherein a) one or more textile sheets are impregnated with a resin composition comprising a combination of (i) at least one epoxy resin which is a tri- or tetrafunctional epoxy resin and (ii) a curing agent system comprising at least two types of reactive groups of different reactivity b) the impregnated textile sheets are subjected to heat to cause a partial reaction between the at least one epoxy resin and the curing agent system, so that the viscosity of the resin composition is increased, and c) the partially reacted impregnated resin composition is gelled using heat and/or pressure.

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