Embossed monolayer particleboards and methods of preparation thereof
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B27N-003/06
B27N-003/14
B27N-003/18
출원번호
US-0582650
(2009-10-20)
등록번호
US-9162369
(2015-10-20)
발명자
/ 주소
Verville, Andre
Brommer, Ekkehard
Fortin, Claude
Lepine, Richard
출원인 / 주소
Verville, Andre
인용정보
피인용 횟수 :
0인용 특허 :
53
초록▼
There is provided an embossed particleboard, which can be used, for example, as a siding. The particleboard comprises a monolayer embossed particleboard including wood particles having an average size of less than 4 mm, a resin, and optionally a sizing agent. There is also provided a method of manuf
There is provided an embossed particleboard, which can be used, for example, as a siding. The particleboard comprises a monolayer embossed particleboard including wood particles having an average size of less than 4 mm, a resin, and optionally a sizing agent. There is also provided a method of manufacturing a wood-based product such as a siding. The method comprises embossing and pressing in a single step a monolayer mat comprising wood particles having an average size of less than 4 mm and a resin, so as to obtain an embossed monolayer particleboard siding.
대표청구항▼
1. A method of manufacturing a wood-based siding, comprising: prepressing a material that consists of a monolayer mat consisting essentially of wood particles having an average size that is the same size or less than wood particles that have been pressed through a 4 mm×4 mm square mesh and a resin,
1. A method of manufacturing a wood-based siding, comprising: prepressing a material that consists of a monolayer mat consisting essentially of wood particles having an average size that is the same size or less than wood particles that have been pressed through a 4 mm×4 mm square mesh and a resin, the prepressing at least partially removing air therefrom; andembossing and pressing under heat and pressure in a press adapted to impart an embossing pattern to at least one surface of said siding, in a single step, the material that consists of the prepressed monolayer mat so as to obtain an embossed monolayer particleboard siding consisting essentially of said resin and wood particles and having said embossing pattern on at least one surface, wherein said wood particles exclude the presence of refined wood fibers and wherein said mat comprises about 0.5% to about 20% of the resin, based on the dry wood particles weight. 2. The method of claim 1, wherein said embossing and pressing is carried out simultaneously in a single opening press. 3. The method of claim 1, wherein said mat consists of said wood particles, said resin, and a sizing agent. 4. The method of claim 1, wherein said mat is pressed at a temperature of about 170° C. to about 240° C. 5. The method of claim 1, wherein said mat has about 0.5% to about 20% of said resin by weight based on the dry wood particles weight. 6. The method of claim 1, wherein a sizing agent is present in said mat. 7. The method of claim 1, wherein said mat is formed by distributing said wood particles in said mat in such a manner that the smaller particles are mainly present at surfaces of said mat and that larger particles are mainly present in a central portion of said mat. 8. The method of claim 1, wherein the average size of said wood particles is the same size or less than wood particles that have been passed through a 2 mm×2 mm square mesh. 9. The method of claim 1, wherein said method further comprises at least one of cutting and milling the so-obtained embossed monolayer particleboard siding, or said method further comprises applying at least one protective layer on at least one surface of said embossed monolayer particleboard siding. 10. A method of manufacturing a wood-based siding comprising: obtaining wood particles having an average thickness of less than about 1 mm, an average length of less than about 40 mm, an average width of less than about 15 mm, and a moisture content of less than about 5%;screening said wood particles through a 2 mm×2 mm square mesh so as to obtain screened wood particles;mixing said screened wood particles with a resin so as to obtain a mixture;forming a monolayer mat with said mixture by distributing said wood particles in said mat in such a manner that the smaller wood particles are mainly present at surfaces of said board and that larger particles are mainly present in a central portion of said board;prepressing said monolayer mat so as to at least partially remove air therefrom;applying a prepress sealer to the prepressed monolayer mat; andembossing and pressing, in a single step, in a press adapted to impart an embossing pattern to at least one surface of said siding, a material that consists of said monolayer mat so as to obtain an embossed monolayer particleboard siding consisting essentially of said resin and wood particles and having an embossing pattern on at least one surface, wherein said wood particles exclude the presence of refined wood fibers and wherein said mat comprises about 0.5% to about 20% of the resin, based on the dry wood particles weight. 11. The method of claim 1, wherein said embossing pattern is a wood grain embossing pattern. 12. The method of claim 2, wherein said embossing pattern is a wood grain embossing pattern. 13. The method of claim 10, wherein said embossing pattern is a wood grain embossing pattern. 14. The method of claim 1, wherein said embossing pattern is a wood grain embossing pattern. 15. The method of claim 10, wherein said method further comprises at least one of cutting and milling the so-obtained embossed monolayer particleboard siding, or said method further comprises applying at least one protective layer on at least one surface of said embossed monolayer particleboard siding. 16. The method of claim 1, wherein said mat comprises about 8% to about 20% of the resin, based on the dry wood particles weight. 17. The method of claim 1, wherein said mat comprises about 1% to about 15% of the resin, based on the dry wood particles weight. 18. The method of claim 1, wherein said mat comprises about 10% to about 15% of the resin, based on the dry wood particles weight. 19. The method of claim 10, wherein said mat comprises about 8% to about 20% of the resin, based on the dry wood particles weight. 20. The method of claim 10, wherein said mat comprises about 10% to about 15% of the resin, based on the dry wood particles weight. 21. The method of claim 1, further comprising before the embossing and pressing, applying a prepress sealer to the prepressed monolayer mat.
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