초록 ▼

A method for making a composite structure, comprising the steps of: arranging a fabric layer in a configuration constrained against outward movement and defining a cavity between opposing surfaces of the fabric layer; dispensing a predetermined amount of a self-expanding, self-curable, uncured struc

A method for making a composite structure, comprising the steps of: arranging a fabric layer in a configuration constrained against outward movement and defining a cavity between opposing surfaces of the fabric layer; dispensing a predetermined amount of a self-expanding, self-curable, uncured structural foam into the cavity, the foam expanding and curing in the cavity at a molding pressure determined by the predetermined amount of the foam and thereby attaching itself to the fabric layer to form the composite structure, the molding pressure causing the expanding foam to substantially fill only interstices of an inner portion of the fabric layer, without substantially penetrating an outer portion of the fabric layer; and, freeing the cured composite structure from the constraint of the arranging step, the outer portion of the fabric layer of the composite structure being thereafter substantially completely saturable with a curable material for lamination to another structure in a subsequent processing step. The method can further comprise the step of laminating the cured composite structure to another composite structure by saturating the outer portion of the fabric layer of the cured composite structure with a curable resin.

대표청구항 ▼

[ What is claimed is:] [1.] A method for making a composite structure, comprising the steps of:arranging a single fabric layer in a configuration constrained against outward movement and defining a cavity between opposing surfaces of said fabric layer;dispensing a predetermined amount of a self-expa

[ What is claimed is:] [1.] A method for making a composite structure, comprising the steps of:arranging a single fabric layer in a configuration constrained against outward movement and defining a cavity between opposing surfaces of said fabric layer;dispensing a predetermined amount of a self-expanding, self-curable, uncured structural foam into said cavity, said foam expanding and curing in said cavity at a molding pressure determined by said predetermined amount of said foam and thereby attaching itself to said fabric layer to form said composite structure, said molding pressure causing said expanding foam to substantially fill only interstices of an inner portion of said fabric layer, without substantially penetrating an outer portion of said fabric layer; and,freeing said cured composite structure from said constraint of said arranging step, said outer portion of said fabric layer of said composite structure being thereafter substantially completely saturable with a curable material for lamination to another structure in a subsequent processing step.