Process for making a continuous structure of a composite materia

Details Process for making a continuous structure of a composite materia Process for making a continuous structure of a composite materia

1995-06-12

1997-05-20

Aftergut, Jeff H.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156 64, 156160, 156229, 156292, 139410, 139420C, 139420R, B32B 3114

Patent

active

056308973

ABSTRACT:
The described process for making a continuous composite material structure (50) starts from a continuous semifinished product (1) made of a reinforcing fiber comprising an upper layer (4) and a lower layer (5) facing each other and mutually connected by intermediate threads (6). It comprises the steps of moving the continuous semifinished product (1) along a working path; impregnating the semifinished product (1) with a resin; coupling a lower surface of the continuous semifinished product (1) with a first ribbon (23); moving one of said layers (4, 5) apart from the opposite layer for bringing the intermediate threads (6) from a first condition in which they are disposed substantially parallel to the two external layers (4, 5) to a second condition in which they are disposed transversally of the external layers; and polymerizing the impregnated semifinished product (1) to make the continuous structure (50).

REFERENCES:
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patent: 5143569 (1992-09-01), Gotoh et al.
patent: 5166480 (1992-11-01), Bottger et al.
patent: 5240533 (1993-08-01), Bottger et al.
Verpoest, I., et al, "2.5D-and 3D-Fabrics for Delamination Resistant Composite Laminates and Sandwich Structures," Sampe Journal, vol. 25, No. 3, May/Jun. 1989, pp. 51-56.

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