Continuous pultrusion process for producing high performance...

Details Continuous pultrusion process for producing high performance... Continuous pultrusion process for producing high performance...

2011-01-11

2011-01-11

Cameron, Erma (Department: 1715)

Coating processes

With post-treatment of coating or coating material

Heating or drying

C427S385500, C427S386000, C427S389900, C427S392000, C427S394000, C427S396000, C427S369000, C427S370000

Reexamination Certificate

active

07867568

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.

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Blosser et. al., Continuous Resin Transfer Molding™ of High Quality, Low Cost, Constant Cross Section, Composite Structural Elements, 39thInternational SAMPE Symposium, Apr. 11-14, 1994, pp. 1961-1972.

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