Method of making annealed door skins and composite door assemblies, and related articles
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United States of America Patent
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Aug 11, 2015
Grant Date -
Oct 23, 2014
app pub date -
Jul 1, 2014
filing date -
Dec 22, 2010
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A method is provided for making an annealed door skin or composite door assembly. At least the door skin is formed of a composition comprising a thermoset binder and fiberglass. The door skin, alone or in combination with other parts of a door assembly, is subjected to annealing to make the annealed door skin. The process of annealing comprises the step of heating the door skin, alone or in combination with other parts of the door assembly, above the glass transition temperature yet below the thermal degradation temperature of the thermoset binder for a sufficient amount of time to cause release internal stresses in the door skin, then the step of cooling the door skin.
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