Method of making a sandwich-type composite panel having a cellulose-based core and a living hinge and panel obtained by performing the method
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United States of America Patent
Stats
-
Dec 27, 2016
Issued Date -
N/A
app pub date -
Jan 23, 2015
filing date -
Apr 23, 2012
priority date (Note) -
In Force
status (Latency Note)
Importance
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.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2015 Application Filing Year
- C09J Class
- 1204 Applications Filed
- 830 Patents Issued To-Date
- 68.94 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 7 Citation Count
- C09J Class
- 25.51 % this patent is cited more than
- 9 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jun 27, 2028 |
