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US 10,246,934 B2Granted
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 first skin and a second skin;
- at least one core disposed between the first skin and the second skin and comprising a composition comprising vermiculite and an inorganic bonding agent;
- at least two stiles aligned in a first direction, the at least two stiles including a first stile disposed along a first edge of the door and a second stile disposed along a second edge of the door;
- and
- at least two rails aligned in a second direction, the at least two rails including a first rail disposed along a third edge of the door and a second rail disposed along a fourth edge of the door;
- wherein the door has a rectangular shape and the at least one core is disposed in-between the at least two stiles and the at least two rails,
- wherein the at least two skins comprises a material of a glass fiber reinforced or mineral filled polymer composite, the at least two stiles comprise laminated veneer lumber (LVL), and the at least two rails comprise a composite comprising wood and polyvinyl chloride,
- 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.
5 more elements
A door comprising:
- at least two skins including a first skin and a second skin;
- and
- at least one core disposed between the first skin and the second skin and comprising a composition comprising vermiculite and an inorganic bonding agent;
- wherein the inorganic bonding agent comprises Na2SiO3, SiO2, and CaCO3 in a ratio from 2:7:1 to 7:2:1 by weight,
- 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.
2 more elements
A door comprising:
- at least two skins including a first skin and a second skin;
- and
- at least one core disposed between the first skin and the second skin and comprising a composition comprising vermiculite and an inorganic bonding agent;
- wherein the inorganic bonding agent in the composition for the at least one core comprises at least one of Na2SiO3, SiO2, and CaCO3, SiO2 being amorphous,
- 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.
2 more elements
Dependencies are inferred from the claim text.