Composite products and molded articles obtained from said products
AssigneeHexcel Composites Limited
InventorsRégis Gallet, Marie-France Wilhelm
Life of this patent
Estimating the term…
Abstract
An uncured composite product having a middle fibrous reinforcement, a thermosetting-resin based layer and a hardening-agent based layer for the thermosetting resin. The thermosetting-resin based layer is placed on one side of the fibrous reinforcement and the hardening-agent based layer is placed on the other side so that the fibrous reinforcement forms a physical barrier between the thermosetting resin and the hardener. When heated, the thermosetting resin and/or hardener flows across the physical barrier to provide mixing and resultant curing.
Claims21
An uncured composite product comprising:
- a fibrous reinforcement layer including a first side, a second side and a fibrous body having openings therein between said first and second sides;
- a resin layer located on said first side of said fibrous reinforcement layer, said resin layer being in contact with said first side of said fibrous reinforcement layer and wherein said resin layer consists essentially of a thermosetting resin;
- and
- a hardening agent layer located on said second side of said fibrous reinforcement layer, said hardening agent layer being in contact with said second side of said fibrous reinforcement layer and consisting essentially of a hardening agent for said thermosetting resin wherein said fibrous body provides a physical barrier that prevents contact between said thermosetting resin and said hardening agent.
A method for making an uncured composite product comprising the steps of:
- providing a fibrous reinforcement layer including a first side, a second side and a fibrous body having openings therein between said first and second sides;
- applying a resin layer to said first side of said fibrous reinforcement layer, said resin layer consisting essentially of a thermosetting resin;
- and
- applying a hardening agent layer to said second side of said fibrous reinforcement layer, said hardening agent layer consisting essentially of a hardening agent for said thermosetting resin wherein said fibrous body provides a physical barrier that prevents contact between said thermosetting resin and said hardening agent.
Dependencies are inferred from the claim text.