Container flooring material and method of manufacture
A board suitable for use as container flooring uses bamboo and fast-growth low-density wood. Thin layers of high-density bamboo composites are used to overlay on surfaces of a core layer which can be the composite of wood veneer and wood strand-based composite, or wood veneer and bamboo stripe sheet composite. This invention combines the benefits of bamboo and wood materials to produce a bamboo-wood composite board having sufficient mechanical and physical strength and durability for use as container flooring.
1 . A bamboo-wood composite board comprising:
(a) at least one surface layer comprised of a plurality of bamboo stripe sheets and resin;
(b) a core layer comprising at least one wood veneer layer and a support layer.
2 . The board of claim 1 wherein the support layer comprises a wood strand layer or a wood veneer layer oriented perpendicular to the at least one wood veneer layer.
3 . The board of claim 2 wherein the core layer comprises least four layers of wood veneers, alternating between grain parallel and grain perpendicular layers.
4 . The board of claim 3 wherein the support layer further comprises at least one bamboo stripe sheet.
5 . The board of claim 3 wherein the core layer comprises 17 layers of wood veneers, alternating between grain parallel and grain perpendicular layers.
6 . The board of claim 3 comprising two surface bamboo layers, sandwiching the core layer.
7 . The board of claim 2 wherein the support layer comprises a wood strand layer.
8 . The board of claim 7 wherein the wood strand layer is an oriented strand layer.
9 . The board of any preceding claim wherein the wood comprises a wood having a specific density of about 0.6 or less.
10 . The board of claim 9 wherein the wood comprises poplar, aspen, spruce, fir, or pine.
11 . A bamboo-wood composite board comprising:
(a) at least one surface layer comprised of a plurality of bamboo stripe sheets and a resin;
(b) a core layer comprising a wood strand layer.
12 . The board of claim 11 wherein the wood strand layer comprises a low-density wood material.
13 . The board of claim 12 wherein the low-density wood material is selected from the group consisting of poplar, aspen, spruce, pine or fir.
14 . The board of claim 11 further comprising a wood veneer layer disposed between surface bamboo layer and the wood strand layer.
15 . The board of claim 11 wherein the wood strand layer is an oriented strand layer.