A method of forming a lightweight, contoured, structurally stable, self-supporting laminate comprises laying down, in succession, a finish lamina, a first heat activated adhesive, a first thermoformable scrim lamina, a second heat activated adhesive, a high density polymeric foam lamina, a third hea
A method of forming a lightweight, contoured, structurally stable, self-supporting laminate comprises laying down, in succession, a finish lamina, a first heat activated adhesive, a first thermoformable scrim lamina, a second heat activated adhesive, a high density polymeric foam lamina, a third heat activated adhesive, and a second thermoformable scrim lamina thereby forming an unbonded laminate. This unbonded laminate is then uniformly heated in an oven to a temperature sufficient to make the adhesives bondable thereby forming a heated, substantially unbonded laminate. This heated, substantially unbonded laminate is then quickly transferred to a contoured die press and permanently bonded and formed, under pressure. The laminate is permanently bonded utilizing the residual heat in the laminate to form a contoured, structurally stable, self-supporting, impact resistant laminate.
대표청구항▼
A method of forming a lightweight, contoured, structurally stable, self-supporting laminate, said method comprising: (a) laying down, in succession, a finish lamina, a first heat activated adhesive, a first thermoformable scrim lamina, a second heat activated adhesive, a high-density at least partia
A method of forming a lightweight, contoured, structurally stable, self-supporting laminate, said method comprising: (a) laying down, in succession, a finish lamina, a first heat activated adhesive, a first thermoformable scrim lamina, a second heat activated adhesive, a high-density at least partially closed cell polymeric foam lamina, a third heat activated adhesive, and a second thermoformable scrim lamina thereby forming an unbonded laminate; (b) uniformly heating said unbonded laminate in an oven to a temperature sufficient to make said adhesives bondable thereby forming a heated, substantially unbonded laminate; and (c) quickly transferring said laminate to a contoured die press and permanently bonding and forming, under pressure, said laminate in said contoured die press and applying pressure to outside surfaces of said laminate to permanently bond said laminate utilizing the residual heat in said laminate to form a contoured, structurally stable, self-supporting, impact resistant laminate.
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