초록 ▼

The present invention relates to a multiple foam substrate of predetermined shape and a method of manufacturing the substrate. The substrate is a multiple foam substrate which may be manufactured by the method with a mold having first and second mold cavities. The method includes injecting a first f

The present invention relates to a multiple foam substrate of predetermined shape and a method of manufacturing the substrate. The substrate is a multiple foam substrate which may be manufactured by the method with a mold having first and second mold cavities. The method includes injecting a first foam into the first mold cavity sufficiently to fill the first mold cavity and storing the first foam in the first mold cavity for a predetermined time sufficient to form a substantially non-mixing surface on the first foam. The method further includes injecting a second foam into the second mold cavity and onto the non-mixing surface on the first foam sufficiently to fill the second mold cavity. The method further includes storing the second foam in the second mold cavity for a predetermined time sufficient to bond the first foam to the second foam along the non-mixing surface.

대표청구항 ▼

1. A method of manufacturing a multiple foam substrate of predetermined shape with a mold having first and second mold cavities, the method comprising:injecting a first foam into the first mold cavity sufficiently to fill the first mold cavity; storing the first foam in the first mold cavity for a p

1. A method of manufacturing a multiple foam substrate of predetermined shape with a mold having first and second mold cavities, the method comprising:injecting a first foam into the first mold cavity sufficiently to fill the first mold cavity; storing the first foam in the first mold cavity for a predetermined time sufficient to form a substantially non-mixing surface on the first foam, wherein the non-mixing surface has a notch formed thereon; loading a deployable airbag onto the non-mixing surface; injecting a second foam into the second mold cavity and onto the non-mixing surface on the first foam sufficiently to fill the second mold cavity after the step of loading the airbag; and storing the second foam in the second mold cavity for a predetermined time sufficient to bond the first foam to the second foam along the non-mixing surface, thereby defining the multiple foam substrate having the predetermined shape, and wherein the notch formed on the non-mixing surface allows for airbag deployment.