# US 8,541,085 B2 · Bamboo composite board and beam product

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- Number: US 8,541,085 B2
- Document ID: US8541085B2
- Status: Granted
- Kind: B2
- Application number: 12/583,245
- Filed: 2009-08-18
- Published: 2011-02-24
- Granted: 2013-09-24
- Earliest claimed: 2009-08-18
- Assignees: US Floors, Inc.
- Applicants: Piet V. Dossche; Philippe Erramuzpe
- Inventors: Piet V. Dossche; Philippe Erramuzpe
- Web page: https://patentgrep.com/patent/US8541085B2

## CPC

- B27N 3/00: Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B32B 3/06: for securing layers together; for attaching the product to another member, e.g. to a support {, or to another product, e.g. groove/tongue, interlocking}
- B32B 5/02: characterised by structural features of a {fibrous or filamentary} layer {(layer formed of metallic wires B32B15/02; layer formed of natural mineral fibres B32B19/02; layer formed of wood fibres B32B21/02)}
- B32B 7/12: using interposed adhesives or interposed materials with bonding properties
- B32B 9/02: comprising animal or vegetable substances {, e.g. cork, bamboo, starch}
- B32B 9/04: comprising such {particular} substance as the main or only constituent of a layer, {which is} next to another layer of {the same or of} a {different material (next to a glass layer B32B17/06; layered products with at least two ceramic layers composed mainly of ceramic B32B18/00)}
- B32B 9/042: {of wood}
- B32B 9/047: {made of fibres or filaments}
- B32B 21/10: Next to a fibrous or filamentary layer
- B32B 2250/42: Alternating layers, e.g. ABAB(C), AABBAABB(C)
- B32B 2262/065: Lignocellulosic fibres, e.g. jute, sisal, hemp, flax, bamboo
- B32B 2307/102: Insulating
- B32B 2307/304: Insulating
- B32B 2307/58: Cuttability
- B32B 2307/7265: Non-permeable
- B32B 2419/00: Buildings or parts thereof
- B32B 2471/00: Floor coverings (B32B2419/04 takes precedence)
- B32B 2607/00: Walls, panels
- Y10T 156/10: Methods of surface bonding and/or assembly therefor
- Y10T 156/1052: with cutting, punching, tearing or severing
- Y10T 428/18: Longitudinally sectional layer of three or more sections
- Y10T 428/183: Next to unitary sheet of equal or greater extent
- Y10T 428/192: Sheets or webs coplanar
- Y10T 428/24355: Continuous and nonuniform or irregular surface on layer or component [e.g., roofing, etc.]
- Y10T 428/249921: Web or sheet containing structurally defined element or component
- Y10T 428/249952: At least one thermosetting synthetic polymeric material layer
- B27N: MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL (containing cementitious material B28B; shaping of substances in a plastic state B29C; fibreboards made from fibrous suspensions D21J; drying F26B17/00)
- B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

New engineered wood products are provided by adding adhesives to alternating layers of bamboo and cork or other lignocellulostic or recycled materials and varied appearances are attained through the use of stains and the vertical or horizontal cuts applied to the products.

## Claims

### Claim 1

An engineered wood product having alternating layers of strand woven bamboo formed from bamboo and adhesive resin cured under pressure and layers of cork and adhesive resin cured under pressure.

### Claim 2 (depends on 1)

The engineered wood product of claim 1 wherein the layers of cork are comprised of sheets of cork.

### Claim 3 (depends on 1)

The engineered wood product of claim 1 wherein the layers of cork are comprised of cork granules.

### Claim 4 (depends on 1)

The engineered wood product of claim 1 further comprising a stain.

### Claim 5

An engineered wood product having alternating layers of strand woven bamboo and cork in the form of a flooring product cut to display vertical grain.

### Claim 6

An engineered wood product having alternating layers of strand woven bamboo and cork in the form of a flooring product cut to display horizontal grain.

### Claim 7

An engineered wood product having alternating layers of strand woven bamboo and another material selected from the group of lignocellulostic material and recycled materials wherein the recycled material is selected from the group of rubber, glass, linoleum, vinyl and leather.

### Claim 8

An engineered wood product having alternating layers of strand woven bamboo and another material selected from the group of lignocellulostic material and recycled materials in the form of a flooring product cut to display vertical grain.

### Claim 9

An engineered wood product having alternating layers of strand woven bamboo and another material selected from the group of lignocellulostic material and recycled materials in the form of a flooring product cut to display horizontal grain.

### Claim 10

An engineered wood flooring product formed of layers of bamboo segments coated with adhesive resin with alternating layers of lignocellulostic material or recycled material coated with adhesive resin, wherein the layers of bamboo segments have an original thickness between 6 and 50 millimeters and the layers of lignocellulostic material or recycled material have an original thickness of between 1 and 6 millimeters prior to compressing the layers of lignocellulostic or recycled material and bamboo segments and heating the adhesive resin and curing the resulting layered product.

### Claim 11 (depends on 10)

The engineered wood flooring product of claim 10 wherein the recycled material is selected from the group of rubber, glass, linoleum, vinyl and leather.

### Claim 12 (depends on 10)

The engineered wood flooring product of claim 10 wherein the lignocellulostic material is selected from the group of cork, oak, hardwood, eucalyptus, acacia, birch, palm wood, rubber wood, mulberry wood, Forest Stewardship Council certified wood species, coir, jute, seagrass and straw.

### Claim 13 (depends on 10)

The engineered wood flooring product of claim 10 wherein the layers of lignocellulostic materials are comprised of sheets of cork.

### Claim 14 (depends on 10)

The engineered wood flooring product of claim 10 wherein the layers of lignocellulostic materials are comprised of cork granules.

### Claim 15 (depends on 10)

The engineered wood flooring product of claim 10 wherein a stain is applied to the bamboo segments and lignocellulostic or recycled materials before compressing the layers.

### Claim 16 (depends on 15)

The engineered wood flooring product of claim 15 wherein the lignocellulostic materials are cork which has a different absorbency of the stain relative to the bamboo segments resulting in a relatively lighter appearance of the bamboo segments.

### Claim 17 (depends on 10)

The engineered wood flooring product of claim 10 wherein the resulting layered product is cut to display vertical grain.

### Claim 18 (depends on 10)

The engineered wood flooring product of claim 10 wherein the resulting layers product is cut to display flat grain.

### Claim 19

An engineered wood product in a form selected from the group of beams, dimensional lumber, boards, panels or veneers, said product comprising alternating layers of strand woven bamboo comprising bamboo segments and adhesive resin, and layers of another material selected from the group of lignocellulostic materials and recycled materials with adhesive resin.

### Claim 20 (depends on 19)

The engineered wood product of claim 19 wherein the lignocellulostic material is selected from the group of cork, oak, hardwood, eucalyptus, acacia, birch, palm wood, rubber wood, mulberry wood, Forest Stewardship Council certified wood species, coir, jute, seagrass and straw.