Method of manufacturing a piece of automotive vehicle equipment and associated piece of equipment
First Claim
1. A method for manufacturing an equipment part of an automotive vehicle comprising the following steps:
- providing a base layer including ceramic fibers and heat fusible polymer fibers;
heating and compressing the base layer on at least one supporting wall for melting the hot melt polymer fibers and having the molten polymer adhere to the ceramic fibers in order to obtain a preformed layer;
confining the preformed layer in a pressurized mold in order to make up a formed layer,wherein the method includes arranging a first sheet of porous material on a first face of the base layer and a second sheet of porous material on a second face of the base layer before the heating step, at least the first sheet of porous material being formed with paper, each sheet of porous material having a thickness of less than that of the formed layer, the sheets of porous material confining between them the molten polymeric material stemming from the heat fusible polymer fibers during the heating step, the sheets of porous material being bound to the formed layer after the step for making up the formed layer, in order to form a first composite body, wherein the method includes;
making a second composite body,attaching the first composite body and the second composite body onto opposite faces of an intermediate spacer having cellulose fibers, said attaching step including adhesively bonding the first sheet of porous material of the first composite body against said intermediate spacer.
1 Assignment
0 Petitions
Accused Products
Abstract
This method includes the arrangement of a first sheet (22A) of porous material on a first face (18) of a base layer and of a second sheet (22B) of porous material of a second face (20) of the base layer before a heating step. Each sheet (22A, 22B) of porous material has a thickness of less than that of the formed layer (16).
The sheets (22A, 22B) of porous material confine between them the molten polymeric material derived from the heat fusible polymer fibers during the heating step. The sheets (22A, 22B) of porous material are bound to the formed layer (16) after the step for building up the formed layer (16), in order to make up a first composite body (12A).
-
Citations
14 Claims
-
1. A method for manufacturing an equipment part of an automotive vehicle comprising the following steps:
-
providing a base layer including ceramic fibers and heat fusible polymer fibers; heating and compressing the base layer on at least one supporting wall for melting the hot melt polymer fibers and having the molten polymer adhere to the ceramic fibers in order to obtain a preformed layer; confining the preformed layer in a pressurized mold in order to make up a formed layer, wherein the method includes arranging a first sheet of porous material on a first face of the base layer and a second sheet of porous material on a second face of the base layer before the heating step, at least the first sheet of porous material being formed with paper, each sheet of porous material having a thickness of less than that of the formed layer, the sheets of porous material confining between them the molten polymeric material stemming from the heat fusible polymer fibers during the heating step, the sheets of porous material being bound to the formed layer after the step for making up the formed layer, in order to form a first composite body, wherein the method includes; making a second composite body, attaching the first composite body and the second composite body onto opposite faces of an intermediate spacer having cellulose fibers, said attaching step including adhesively bonding the first sheet of porous material of the first composite body against said intermediate spacer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
- 10. An equipment part of an automotive vehicle, wherein the part includes at least one composite body including a layer formed with ceramic fibers bound together by a polymeric matrix obtained from heat fusible polymer fibers, the composite body comprising a first sheet of porous material formed with paper positioned on a first face of the formed layer, and a second sheet of porous material positioned on a second face of the formed layer, each sheet of porous material having a thickness of less than that of the formed layer, the matrix in polymeric material being confined between the sheets of porous material, each sheet of porous material being attached to the formed layer by an adhesive bond that comprises the polymer matrix and that is co-formed with the formed layer, wherein the equipment part further includes a second composite body and the first composite body and the second composite body are attached onto opposite faces of an intermediate spacer having cellulose fibers, wherein the first sheet of porous material of the first composite body is adhesively bonded against said intermediate spacer.
Specification