Fiber board capable of capturing and decomposing aldehyde
AssigneeNichiha Corporation
InventorsTsutomu Nishio, Akira Hatano, Manabu Kuki
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Abstract
A board capable of capturing and decomposing both formaldehyde and acetaldehyde comprises a wood fiber board comprising a plant fiber of 30 wt % or more, and an aldehyde capturing agent comprising at least carbodihydrazide which is impregnated and solidified inside the side of the fiber board. In addition to the wood fiber board, a fiber board made of a mixture material of a resin fiber and a plant fiber combined. A carbodihydrazide is sprayed onto the fiber board in the form of water solution and optionally comprises a surfactant.
Claims19
A board capable of capturing and decomposing formaldehyde and acetaldehyde, wherein the board is a hard board or insulation board comprising:
- wood fiber in an amount of 90 weight % or more of a plant fiber based on the weight of the hard board or insulation board;
- and
- an aldehyde capturing agent impregnated and solidified inside one side or both sides of the hard board or insulation board in an amount of 3-6 g/m2, wherein
- the aldehyde capturing agent comprises carbodihydrazide, dihydrazide adipate and guanidine sulfamate.
A board capable of capturing and decomposing formaldehyde and acetaldehyde, wherein the board is a wood plastic sheet (WPS) comprising:
- at least 30 weight % of a resin fiber and at least 30 weight % of a plant fiber based on the weight of the WPS, and
- an aldehyde capturing agent impregnated and solidified inside one side or both sides of the wood plastic sheet in an amount of 3-6 g/m2, wherein
- the aldehyde capturing agent comprises carbodihydrazide, dihydrazide adipate and guanidine sulfamate.
Dependencies are inferred from the claim text.