Articles having a multilayer structure including undercut features interlocked with an adhesive, and methods of making same
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United States of America Patent
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Jul 4, 2017
Grant Date -
Aug 4, 2016
app pub date -
Sep 3, 2014
filing date -
Sep 18, 2013
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Articles are provided, having a multilayer structure including (a) a first layer formed from polyolefin and including undercut features formed on and extending from an integral backing; (b) a second layer including an adhesive having a Shore D hardness of greater than 59 when cured; and (c) a third layer including a substrate. The second layer is interlocked with the undercut features, the third layer is adhered to the adhesive, and the second layer is disposed between the first layer and the third layer. A method is also provided including (a) depositing a polyolefin resin into a mold cavity to form a first layer including undercut features; (b) demolding the first layer from the mold cavity at a rate of at least 150 millimeters per minute; (c) applying a curable adhesive to the undercut features to form a second layer attached to the first layer; and (d) attaching a third layer including a substrate to the second layer.
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Cited Art Landscape
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