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US 2018/0179807 A1Published application
Door comprising vermiculite-containing core, and method of making the same
AssigneePlastpro 2000, Inc.
InventorsShirley WANG, Jared Andrew GARRETT, Scott Evert JOHNSON, Sungtse LIN
Life of this patent
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Abstract
A door for attenuating sound includes at least one core disposed between a front surface and a back surface. The at least one core includes a composition comprising vermiculite, for example, expanded vermiculite, and an inorganic bonding agent. Such a composition for the core has a density of at least 600 Kg/m3. The door has at least a sound transmission class (STC) rating or an outdoors/indoors transmission coefficient (OITC) being higher than 30.
Claims18
A door for attenuating sound comprising:
- at least two skins including a front skin and a back skin;
- at least one core disposed between the front skin and the back skin and comprising a composition comprising vermiculite and an inorganic bonding agent,
- wherein the composition for the at least one core has a density of at least 600 Kg/m3, and the door has at least one of a sound transmission class (STC) rating or an outdoor/indoor transmission coefficient (OITC) being higher than 30.
Dependencies are inferred from the claim text.