Method of formulating low gravity sponge rubber for automotive weatherstrips

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United States of America Patent

PATENT NO 9663641
SERIAL NO

13700497

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Abstract

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The invention relates to automotive weatherstrip material. More specifically, the invention utilizes thermo-expandable microspheres in the sponge bulb member of the weatherstrip to produce a microcellular structure which provides a lower weight weatherstrip material with improved surface appearance and comparable stiffness to known materials for use in the automotive industry, and exhibiting a blown specific gravity of less than about 0.60 g/cc.

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Patent Owner(s)

  • COOPER-STANDARD AUTOMOTIVE INC.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Gopalan, Krishnamachari Troy, US 46 129
Lenhart, Robert Fort Wayne, US 3 3

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