Dow Global Technolgoies LLC

John W McLaren

Mark P Allen

Allan James

George A Klumb

There is disclosed a closure panel. The panel finds particular utility as a liftgate or endgate for automotive vehicles. Typically, the assembly includes a first panel portion opposite a second panel portion and an intermediate material therebetween. Preferably, one or more of the panel portions is formed of a polymeric material and the intermediate material is preferably a structural foam that can bond to both the first and the second panel portions.

Composite panel and method of forming the same

The invention comprises a mold useful for the preparation of a polyurethane based article comprising a metal coated on the surfaces to come in contact with the polyurethane materials wherein the coating is a continuous matrix of cobalt or nickel having dispersed in such discontinuous matrix a fluorinated polyolefin polymer. In another aspect the invention is a process for injection molding a part from polyurethane materials which process comprises injecting polyurethane based materials into a mold as described above, exposing the injected materials to conditions such that a solidified article is formed and removing the formed article from the mold. In another aspect the invention is an article comprising polyurethane material prepared by injection molding which contains about 0.5 percent by weight or less of an internal mold release and which can be coated in an industrial coating process without the need for a sealer coated on the article.

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Cheboygan, MI, United States of America

John W McLaren