Neo-ex Lab, Inc.

Masao Yoshino

Foam precursor materials are taught comprising an epoxy resin having an epoxy equivalents value of about 300-4000, a curing agent and a foaming agent. The foam precursor materials may be expanded and cured by heat to form foam materials that exhibit excellent rigidity. The resulting foam materials may have a compression strength of about 200-2000 Kgf and a density of about 0.20 to 0.40 grams per cubic centimeter.

Foam materials and foam precursor materials

Shaped foamable structures for filling hollow structural members preferably include a shaped foamable material constructed from a plurality of foamable pieces that are arranged with desired clearances and are interconnected with each other, and a support member for positioning the shaped foamable material within a cavity of the hollow structural member . Methods for using the shaped foamable structures include placing the shaped foamable structures within the hollow structural members and heating the foamable material to expand and fill the hollow structural member

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Toyota, Japan

Masao Yoshino