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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 9878526 B1

PDFFull Text
Date of Patent:
Jan. 30, 2018

Filed:

Nov. 18, 2016

Method of making a sandwich-type composite panel having a cellulose-based core and a living hinge and panel obtained by performing the method

Applicant:

Global Ip Holdings, Llc, Sterling Heights, MI (US);

Inventors:

Darius J. Preisler, Macomb, MI (US);

Christopher A. Heikkila, Washington Township, MI (US);

Assignee:

Global IP Holdings, LLC, Sterling Heights, MI (US);

Attorney:

Brooks Kushman P.C.

Primary Examiner:

Brent T O'Hern

Int. Cl.
CPC ...
B32B 37/04 (2006.01); B32B 7/12 (2006.01); B32B 3/12 (2006.01); B32B 5/02 (2006.01); B32B 27/06 (2006.01); B32B 27/08 (2006.01); B32B 27/12 (2006.01); B29C 51/14 (2006.01); B29C 51/42 (2006.01); B29C 51/46 (2006.01); B32B 27/32 (2006.01); B32B 37/14 (2006.01); B29C 59/00 (2006.01); C09J 5/00 (2006.01); B32B 38/00 (2006.01); B29L 31/22 (2006.01); B29K 23/00 (2006.01); B29K 105/04 (2006.01); B29K 105/00 (2006.01); B29C 53/06 (2006.01); B32B 37/12 (2006.01);
U.S. Cl.
CPC ...
B32B 37/04 (2013.01); B29C 51/145 (2013.01); B29C 51/421 (2013.01); B29C 51/46 (2013.01); B29C 59/007 (2013.01); B32B 3/12 (2013.01); B32B 5/024 (2013.01); B32B 7/12 (2013.01); B32B 27/065 (2013.01); B32B 27/08 (2013.01); B32B 27/12 (2013.01); B32B 27/32 (2013.01); B32B 37/146 (2013.01); C09J 5/00 (2013.01); B29C 53/06 (2013.01); B29K 2023/12 (2013.01); B29K 2105/04 (2013.01); B29K 2105/256 (2013.01); B29L 2031/22 (2013.01); B32B 2037/1223 (2013.01); B32B 2038/0024 (2013.01); B32B 2250/03 (2013.01); B32B 2250/40 (2013.01); B32B 2262/0253 (2013.01); B32B 2266/0214 (2013.01); B32B 2266/0292 (2013.01); B32B 2274/00 (2013.01); B32B 2317/18 (2013.01); B32B 2323/10 (2013.01); B32B 2323/16 (2013.01); B32B 2398/20 (2013.01); B32B 2471/02 (2013.01); B32B 2605/003 (2013.01); Y10T 156/10 (2015.01); Y10T 156/1007 (2015.01); Y10T 428/23979 (2015.04); Y10T 428/24149 (2015.01); Y10T 428/24504 (2015.01);
Abstract

A method of making a sandwich-type composite panel having a cellulose-based core and a living hinge from a stack of material is provided. The stack includes first and second reinforced thermoplastic skins, first and second sheets of thermoplastic adhesive and a cellulose-based cellular core disposed between the sheets and the skins. A pressure is applied to the stack after heating the stack wherein the skins are bonded to the core by the sheets to form the composite panel. A portion of the composite panel is crushed at a predetermined location simultaneously with applying the pressure to locally compact and separate the cellular core at the predetermined location to form two side portions of the panel. The heated first skin stretches during the step of crushing while remaining intact between the two side portions. The skins bond together at the predetermined location to form the living hinge.

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