CA3126821A1 - Recycled-plastic wood-chipping composite sheathing panel - Google Patents
Recycled-plastic wood-chipping composite sheathing panelInfo
- Publication number
- CA3126821A1 CA3126821A1 CA3126821A CA3126821A CA3126821A1 CA 3126821 A1 CA3126821 A1 CA 3126821A1 CA 3126821 A CA3126821 A CA 3126821A CA 3126821 A CA3126821 A CA 3126821A CA 3126821 A1 CA3126821 A1 CA 3126821A1
- Authority
- CA
- Canada
- Prior art keywords
- wood
- panel
- composition
- sheathing panel
- composite
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
- 239000002131 composite material Substances 0.000 title claims description 12
- 239000004033 plastic Substances 0.000 title claims description 7
- 229920003023 plastic Polymers 0.000 title claims description 7
- 239000002023 wood Substances 0.000 claims abstract description 21
- 239000004698 Polyethylene Substances 0.000 claims abstract description 9
- 239000004743 Polypropylene Substances 0.000 claims abstract description 9
- 239000000654 additive Substances 0.000 claims abstract description 9
- 229920000573 polyethylene Polymers 0.000 claims abstract description 8
- 239000002952 polymeric resin Substances 0.000 claims abstract description 8
- 229920001155 polypropylene Polymers 0.000 claims abstract description 8
- 239000000203 mixture Substances 0.000 claims description 17
- 229920001169 thermoplastic Polymers 0.000 claims description 6
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims 2
- 239000006259 organic additive Substances 0.000 claims 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims 1
- RREGISFBPQOLTM-UHFFFAOYSA-N alumane;trihydrate Chemical group O.O.O.[AlH3] RREGISFBPQOLTM-UHFFFAOYSA-N 0.000 claims 1
- 229910000019 calcium carbonate Inorganic materials 0.000 claims 1
- 229910052799 carbon Inorganic materials 0.000 claims 1
- 239000006229 carbon black Substances 0.000 claims 1
- 239000003365 glass fiber Substances 0.000 claims 1
- 239000004408 titanium dioxide Substances 0.000 claims 1
- 239000011787 zinc oxide Substances 0.000 claims 1
- -1 polyethylene Polymers 0.000 abstract description 16
- 239000011347 resin Substances 0.000 abstract description 14
- 229920005989 resin Polymers 0.000 abstract description 14
- 239000003086 colorant Substances 0.000 abstract description 10
- 239000003112 inhibitor Substances 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 8
- 238000000748 compression moulding Methods 0.000 abstract description 3
- 230000006698 induction Effects 0.000 abstract description 2
- 229920003002 synthetic resin Polymers 0.000 abstract 2
- 229920001587 Wood-plastic composite Polymers 0.000 abstract 1
- 238000010276 construction Methods 0.000 abstract 1
- 238000000265 homogenisation Methods 0.000 abstract 1
- 239000011155 wood-plastic composite Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 229920001187 thermosetting polymer Polymers 0.000 description 3
- 239000007788 liquid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000088 plastic resin Substances 0.000 description 2
- 239000011120 plywood Substances 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000004634 thermosetting polymer Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/20—Compounding polymers with additives, e.g. colouring
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- 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
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/007—Manufacture of substantially flat articles, e.g. boards, from particles or fibres and at least partly composed of recycled material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- 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
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/02—Manufacture of substantially flat articles, e.g. boards, from particles or fibres from particles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- 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
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/08—Moulding or pressing
- B27N3/20—Moulding or pressing characterised by using platen-presses
- B27N3/203—Moulding or pressing characterised by using platen-presses with heating or cooling means
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2300/00—Characterised by the use of unspecified polymers
- C08J2300/30—Polymeric waste or recycled polymer
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/04—Homopolymers or copolymers of ethene
- C08J2323/06—Polyethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/10—Homopolymers or copolymers of propene
- C08J2323/12—Polypropene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2497/00—Characterised by the use of lignin-containing materials
- C08J2497/02—Lignocellulosic material, e.g. wood, straw or bagasse
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/20—Recycled plastic
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
Abstract
The invention is a waterproof, wood-plastic composite sheathing panel intended for construction purposes. The panel consists of thin wood chippings constituting between 15%
and 60% of the total mass; shredded recycled polyethylene and polypropylene resins constituting between 40% and 85% of the total mass; and additives including colorants and inhibitors of ultraviolet light, excessive heat, or fire, constituting between 1% and 10% of the total mass. The panel may be produced by separate homogenization of specific components, which are then added to a mold in three distinct layers. The top and bottom layers consist exclusively of shredded polymer resins and additives, with a central layer consisting of wood chippings, shredded polymer resins, and or additives. Once all components are assembled within the mold, it is heated via induction methods to a temperature not less than 160 degrees celsius and not exceeding 200 degrees celsius, and is then formed into a uniform panel using compression molding methods.
Date Recue/Date Received 2021-08-05
and 60% of the total mass; shredded recycled polyethylene and polypropylene resins constituting between 40% and 85% of the total mass; and additives including colorants and inhibitors of ultraviolet light, excessive heat, or fire, constituting between 1% and 10% of the total mass. The panel may be produced by separate homogenization of specific components, which are then added to a mold in three distinct layers. The top and bottom layers consist exclusively of shredded polymer resins and additives, with a central layer consisting of wood chippings, shredded polymer resins, and or additives. Once all components are assembled within the mold, it is heated via induction methods to a temperature not less than 160 degrees celsius and not exceeding 200 degrees celsius, and is then formed into a uniform panel using compression molding methods.
Date Recue/Date Received 2021-08-05
Description
Recycled-Plastic Wood-Chipping Composite Sheathing Panel Field of the invention:
This invention relates to composite panels comprising plastic polymers and wood, and a process for their production.
Prior Art:
Prior Art sheathing panels are manufactured from a composite mixture of thermosetting plastic resin, generally constituting less than 10% of total mass, and a wood component of various shapes and sizes, generally constituting greater than 90%
of the total mass. Representations of such products may include oriented strand boards, disclosed in the American patent 14/955,726, or plywood panels, disclosed in the Japanese patent 1-344050.
Sheathing panels are manufactured primarily from wood, the fibers of which provide strength to the panels. The wood pieces are layered, generally oriented with the grain of the wood laying alternately to the grain of the wood of the layers above and below. A
thermosetting plastic resin acts to bind the wood pieces together. It should be noted that the resin often does not provide significant water resistance for the panel, resulting in their difficulty of use for exterior applications. This wood and resin mixture is then pressed under intense heat and pressure to produce a dense and rigid panel, which is then cut to size.
Wood-resin panels are certified for structural use purposes in Canada through the CSA standard 0325. Wood-resin panels are also certified for use as structural building materials around the world through the adoption of various regulations, for example, the DOC PS2-92 Wood-Based Structural Use Panels code in the United States of America.
Summary of the Invention:
An object of the present invention is to provide a wood-plastic sheathing panel composed of chipped wood and recycled thermoplastic polymer resins, in place of the thermosetting polymer resin used in most sheathing material.
Another object of the present invention is to provide a wood-plastic sheathing panel designed for resistance to water and harsh environments, including rain and snow, by use of component layering techniques.
Yet another object of the present invention is to provide a material of comparable structural properties in comparison to other sheathing panels.
Yet another object of the present invention is to provide resistance to fires and ultraviolet light.
The present invention comprises a wood and plastic composite material produced in the style of a sheathing panel. The panel consists of thin wood chippings, shredded recycled polyethylene and polypropylene resins, and inorganic additives including colorants and inhibitors of ultraviolet light, excessive heat, or fire. The panel is composed of three distinct Date Recue/Date Received 2021-08-05 layers, providing the panel with the methods to realize the present invention's objects. The advantages and features of the present invention will become more apparent upon reading the description of the embodiment of the innovation.
Brief Description of the Drawing Figure 1 shows a front view of an embodiment of a bisected sheathing panel, consisting of three layers, in accordance with the embodiment of the present invention.
Detailed Description of the Embodiment The present invention is described in detail with reference to Figure 1.
Layer 1 consists of a mixture of recycled polyethylene and polypropylene resin shreds combined with a mixture of additives including colorants and inhibitors of ultraviolet light, excessive heat, or fire. In one embodiment of the present invention, Layer 1 will constitute between 10% and 30% of the total mass of the panel. When the present invention is in use, Layer 1 is exposed to the environment. For this reason, Layer 1 consists of only resins, colorants, and inhibitors to achieve the desired objects of the present invention, including resistance to both fire and ultraviolet light, and resistance to liquids including, but not limited to, water. The presence of colorants provides Layer 1 with subjective aesthetic value.
Layer 2 consists of a mixture of thin wood chippings, recycled polyethylene and polypropylene resin shreds, and in some embodiments, may consist of a mixture of additives including colorants and inhibitors of ultraviolet light, excessive heat, or fire. In one embodiment of the present invention, Layer 2 will constitute between 40% and 80% of the total mass of the panel. When the present invention is in use, Layer 2 will provide the majority of the structural strength of the panel, as that is the purpose of the layered thin wood chippings. In the present invention, the wood chippings are held together by the polyethylene and polypropylene resin, which is melted during the manufacturing process..
Layer 3 consists of a mixture of recycled polyethylene and polypropylene resin shreds combined with a mixture of additives including colorants and inhibitors of ultraviolet light, excessive heat, or fire. In one embodiment of the present invention, Layer 3 will constitute between 10% and 30% of the total mass of the panel. When the present invention is in use, Layer 3 is exposed to the environment. For this reason, Layer 3 consists of only resins, colorants, and inhibitors to achieve the desired objects of the present invention, including resistance to both fire and ultraviolet light, and resistance to liquids including, but not limited to, water. The presence of colorants provides Layer 3 with subjective aesthetic value.
In one embodiment, the present invention consists of thin wood chippings constituting between 15% and 60% of the total mass; shredded recycled polyethylene and polypropylene resins constituting between 40% and 85% of the total mass; and additives including colorants and inhibitors of ultraviolet light, excessive heat, or fire, constituting between 1% and 10% of the total mass of the panel.
In all embodiments of the present invention, the panels are manufactured through the process of compression molding. The components of the three layers are mixed Date Recue/Date Received 2021-08-05 independently of each other, and are then added to a flat mold one layer at a time. The mold is then heated via induction methods to a temperature not less than 160 degrees celsius and not exceeding 200 degrees celsius to melt the recycled thermoplastic polymer resins, and is then formed into a uniform panel using compression molding methods. The compression of the panel is done in a plywood press, providing no less than 200kg/cm2 of force onto the mold. This force densely packs the components of the present invention to produce a panel in a similar fashion to prior art sheathing panels. Once cooled under pressure, the panels are then removed from the molds, and are cut to the desired shape for the sheathing product, with the intended use of the present invention being similar to that of the prior art sheathing panels.
Date Recue/Date Received 2021-08-05
This invention relates to composite panels comprising plastic polymers and wood, and a process for their production.
Prior Art:
Prior Art sheathing panels are manufactured from a composite mixture of thermosetting plastic resin, generally constituting less than 10% of total mass, and a wood component of various shapes and sizes, generally constituting greater than 90%
of the total mass. Representations of such products may include oriented strand boards, disclosed in the American patent 14/955,726, or plywood panels, disclosed in the Japanese patent 1-344050.
Sheathing panels are manufactured primarily from wood, the fibers of which provide strength to the panels. The wood pieces are layered, generally oriented with the grain of the wood laying alternately to the grain of the wood of the layers above and below. A
thermosetting plastic resin acts to bind the wood pieces together. It should be noted that the resin often does not provide significant water resistance for the panel, resulting in their difficulty of use for exterior applications. This wood and resin mixture is then pressed under intense heat and pressure to produce a dense and rigid panel, which is then cut to size.
Wood-resin panels are certified for structural use purposes in Canada through the CSA standard 0325. Wood-resin panels are also certified for use as structural building materials around the world through the adoption of various regulations, for example, the DOC PS2-92 Wood-Based Structural Use Panels code in the United States of America.
Summary of the Invention:
An object of the present invention is to provide a wood-plastic sheathing panel composed of chipped wood and recycled thermoplastic polymer resins, in place of the thermosetting polymer resin used in most sheathing material.
Another object of the present invention is to provide a wood-plastic sheathing panel designed for resistance to water and harsh environments, including rain and snow, by use of component layering techniques.
Yet another object of the present invention is to provide a material of comparable structural properties in comparison to other sheathing panels.
Yet another object of the present invention is to provide resistance to fires and ultraviolet light.
The present invention comprises a wood and plastic composite material produced in the style of a sheathing panel. The panel consists of thin wood chippings, shredded recycled polyethylene and polypropylene resins, and inorganic additives including colorants and inhibitors of ultraviolet light, excessive heat, or fire. The panel is composed of three distinct Date Recue/Date Received 2021-08-05 layers, providing the panel with the methods to realize the present invention's objects. The advantages and features of the present invention will become more apparent upon reading the description of the embodiment of the innovation.
Brief Description of the Drawing Figure 1 shows a front view of an embodiment of a bisected sheathing panel, consisting of three layers, in accordance with the embodiment of the present invention.
Detailed Description of the Embodiment The present invention is described in detail with reference to Figure 1.
Layer 1 consists of a mixture of recycled polyethylene and polypropylene resin shreds combined with a mixture of additives including colorants and inhibitors of ultraviolet light, excessive heat, or fire. In one embodiment of the present invention, Layer 1 will constitute between 10% and 30% of the total mass of the panel. When the present invention is in use, Layer 1 is exposed to the environment. For this reason, Layer 1 consists of only resins, colorants, and inhibitors to achieve the desired objects of the present invention, including resistance to both fire and ultraviolet light, and resistance to liquids including, but not limited to, water. The presence of colorants provides Layer 1 with subjective aesthetic value.
Layer 2 consists of a mixture of thin wood chippings, recycled polyethylene and polypropylene resin shreds, and in some embodiments, may consist of a mixture of additives including colorants and inhibitors of ultraviolet light, excessive heat, or fire. In one embodiment of the present invention, Layer 2 will constitute between 40% and 80% of the total mass of the panel. When the present invention is in use, Layer 2 will provide the majority of the structural strength of the panel, as that is the purpose of the layered thin wood chippings. In the present invention, the wood chippings are held together by the polyethylene and polypropylene resin, which is melted during the manufacturing process..
Layer 3 consists of a mixture of recycled polyethylene and polypropylene resin shreds combined with a mixture of additives including colorants and inhibitors of ultraviolet light, excessive heat, or fire. In one embodiment of the present invention, Layer 3 will constitute between 10% and 30% of the total mass of the panel. When the present invention is in use, Layer 3 is exposed to the environment. For this reason, Layer 3 consists of only resins, colorants, and inhibitors to achieve the desired objects of the present invention, including resistance to both fire and ultraviolet light, and resistance to liquids including, but not limited to, water. The presence of colorants provides Layer 3 with subjective aesthetic value.
In one embodiment, the present invention consists of thin wood chippings constituting between 15% and 60% of the total mass; shredded recycled polyethylene and polypropylene resins constituting between 40% and 85% of the total mass; and additives including colorants and inhibitors of ultraviolet light, excessive heat, or fire, constituting between 1% and 10% of the total mass of the panel.
In all embodiments of the present invention, the panels are manufactured through the process of compression molding. The components of the three layers are mixed Date Recue/Date Received 2021-08-05 independently of each other, and are then added to a flat mold one layer at a time. The mold is then heated via induction methods to a temperature not less than 160 degrees celsius and not exceeding 200 degrees celsius to melt the recycled thermoplastic polymer resins, and is then formed into a uniform panel using compression molding methods. The compression of the panel is done in a plywood press, providing no less than 200kg/cm2 of force onto the mold. This force densely packs the components of the present invention to produce a panel in a similar fashion to prior art sheathing panels. Once cooled under pressure, the panels are then removed from the molds, and are cut to the desired shape for the sheathing product, with the intended use of the present invention being similar to that of the prior art sheathing panels.
Date Recue/Date Received 2021-08-05
Claims (7)
1. A waterproof, multi-layer composite wood-plastic sheathing panel, characterized by:
a. A proportion of wood chippings, and a proportion of recycled thermoplastic polymer resins; and b. A layer of wood chippings suspended within two layers of recycled thermoplastic polymer resin.
a. A proportion of wood chippings, and a proportion of recycled thermoplastic polymer resins; and b. A layer of wood chippings suspended within two layers of recycled thermoplastic polymer resin.
2. A composite sheathing panel, as claimed in Claim 1, consisting of a composition in which the thermoplastic polymer resin is a combination of recycled polyethylene(PE) or polypropylene(PP).
3. A composite sheathing panel, as claimed in Claim 1 or Claim 2, consisting of a composition in which the wood chips are1/4" thick or thinner.
4. A composite sheathing panel, as claimed in any one of Claims 1 to 3, consisting of a composition additionally comprising a non-organic additive.
5. A composite sheathing panel, as claimed in Claim 4, consisting of a composition in which the non-organic additive is aluminum trihydrate, iron oxide, carbon black or any related carbon additives, titanium dioxide, zinc oxide, calcium carbonate, glass fibers, or any combination thereof in proportions of 1% to 10% of the mass of the composition.
6. A composite sheathing panel, as claimed in any one of Claims 1 to 5, consisting of a composition in which the recycled thermoplastic polymer resin represents from 40%
to 85% of the mass of the composition.
to 85% of the mass of the composition.
7. A composite sheathing panel, as claimed in any one of Claims 1 to 6, consisting of a composition in which the wood chippings represent from 15% to 60% of the mass of the composition.
Date Recue/Date Received 2021-08-05
Date Recue/Date Received 2021-08-05
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA3126821A CA3126821A1 (en) | 2021-08-05 | 2021-08-05 | Recycled-plastic wood-chipping composite sheathing panel |
| CA3161417A CA3161417A1 (en) | 2021-08-05 | 2021-10-28 | Composite, recycled-plastic, wood-waste, fiberboard-alternative panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA3126821A CA3126821A1 (en) | 2021-08-05 | 2021-08-05 | Recycled-plastic wood-chipping composite sheathing panel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA3126821A1 true CA3126821A1 (en) | 2023-02-05 |
Family
ID=85128599
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA3126821A Abandoned CA3126821A1 (en) | 2021-08-05 | 2021-08-05 | Recycled-plastic wood-chipping composite sheathing panel |
| CA3161417A Pending CA3161417A1 (en) | 2021-08-05 | 2021-10-28 | Composite, recycled-plastic, wood-waste, fiberboard-alternative panel |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA3161417A Pending CA3161417A1 (en) | 2021-08-05 | 2021-10-28 | Composite, recycled-plastic, wood-waste, fiberboard-alternative panel |
Country Status (1)
| Country | Link |
|---|---|
| CA (2) | CA3126821A1 (en) |
-
2021
- 2021-08-05 CA CA3126821A patent/CA3126821A1/en not_active Abandoned
- 2021-10-28 CA CA3161417A patent/CA3161417A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CA3161417A1 (en) | 2023-02-05 |
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| Date | Code | Title | Description |
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Effective date: 20231227 |