KR20120110953A - Wood polymer comoisits and the manufacturing method of the same - Google Patents
Wood polymer comoisits and the manufacturing method of the same Download PDFInfo
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- KR20120110953A KR20120110953A KR1020110029161A KR20110029161A KR20120110953A KR 20120110953 A KR20120110953 A KR 20120110953A KR 1020110029161 A KR1020110029161 A KR 1020110029161A KR 20110029161 A KR20110029161 A KR 20110029161A KR 20120110953 A KR20120110953 A KR 20120110953A
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- lubricant
- wood
- synthetic wood
- synthetic
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- 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
- B27N1/00—Pretreatment of moulding material
- B27N1/02—Mixing the material with binding agent
- B27N1/029—Feeding; Proportioning; Controlling
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- 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
- B27N3/002—Manufacture of substantially flat articles, e.g. boards, from particles or fibres characterised by the type of binder
-
- 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
- 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
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M105/00—Lubricating compositions characterised by the base-material being a non-macromolecular organic compound
- C10M105/08—Lubricating compositions characterised by the base-material being a non-macromolecular organic compound containing oxygen
- C10M105/32—Esters
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M105/00—Lubricating compositions characterised by the base-material being a non-macromolecular organic compound
- C10M105/56—Lubricating compositions characterised by the base-material being a non-macromolecular organic compound containing nitrogen
- C10M105/68—Amides; Imides
Abstract
The present invention relates to a synthetic wood and a method of manufacturing the same, and more particularly, to improve the flow of the polymer in the production of synthetic wood made by mixing wood flour and resin for use as building materials, etc. The present invention relates to a synthetic wood and a method of manufacturing the same so that the productivity and processability of the synthetic wood can be improved by having flowability.
The present invention is a synthetic wood comprising wood flour, thermoplastic synthetic resin, binder, filler and lubricant, characterized in that the lubricant is composed of a mixture of an ester lubricant and an amide lubricant.
Description
The present invention relates to a synthetic wood and a method of manufacturing the same, and more particularly, to improve the flow of the polymer in the production of synthetic wood made by mixing wood flour and resin for use as building materials, etc. The present invention relates to a synthetic wood and a method of manufacturing the same so that the productivity and processability of the synthetic wood can be improved by having flowability.
In general, natural wood is mainly used as exterior materials or interior materials of buildings such as floorboards, ceiling boards, doors, door frames, windows and fences.
Natural wood is mainly used as interior and exterior materials of buildings because the consumer's preference for wood and aesthetics due to natural texture are improved.
However, the interior and exterior materials of buildings made of natural wood are deteriorated by forest damage due to wood felling, water resistance, heat resistance, impact strength, flexural strength, dimensional stability, flame retardancy, weather resistance, and antibacterial properties due to the inherent properties of wood. It is difficult to use as an exterior material, and the life expectancy is shortened due to the deterioration of antimicrobial activity by wood materials, and the use of copper, arsenic, and chromium-based antiseptics (called CCA preservatives) for the purpose of strengthening the antimicrobial properties is mixed and used. .
In order to solve this problem, recently, synthetic wood having a texture and appearance similar to natural wood has been disclosed. In general, synthetic wood is injected or extruded after mixing wood flour and synthetic resin to have a similar appearance or properties to natural wood. Prepared by the method.
As a raw material for manufacturing the synthetic wood, synthetic resins, wood flour, etc. are mainly used, and various additives may be added according to materials, production methods, and end uses of the product. For example, a blending agent is added to promote adhesion and dispersion of wood flour and resin, a blocking agent is added so as not to interfere with the binding of the mixture, a sunscreen and a buffer to prevent the performance degradation of the product, a blowing agent to reduce the density of the product, etc. This can be added.
In addition, the recent synthetic wood is a suitable shape and size after extrusion processing a mixture of so-called lignocellulose-based powder such as wood flour, rice husk powder, pulp powder, rice straw powder and thermoplastic resin such as polyvinyl chloride, polypropylene, etc. Is manufactured. In particular, synthetic wood with polyvinyl chloride and lignocellulosic powder is excellent in workability, has essential flame retardancy as a building material, and is inexpensive, and demand is expanding. However, these synthetic woods are harmful to the human body because formaldehyde and volatile organic compounds, which are fatal to the human body, are easily broken and cracked. In addition, there is a problem in that the replacement of the synthetic wood often occurs because the distortion occurs, as well as changes in shape, and also causes problems in stability. Therefore, these synthetic timbers are expensive because the replacement cycle is faster when used outside in harsh environments.
Korean Patent No. 10-0864484 discloses a molded wood and a method of manufacturing the same. The main technical configuration is a molded wood of 35-80 mesh and a water content of 5 wt. 55% to 55% by weight of organic fiber less than%, 1-3% by weight of natural cellulose, 3-12% by weight of non-halogen-based flame retardant, 1-5% by weight of anionic surfactant, C1-C10 polyalkylene thermoplastic resin 25-35 It comprises a weight percent and 1-5 weight percent maleic anhydride.
However, the above configuration has a problem that the productivity of the product is reduced by using an anionic surfactant as a lubricant.
That is, conventional techniques including the prior art are mainly used as a lubricant used to reduce the friction generated during the production of synthetic wood, calcium stearate, zinc stearate, or anionic surfactants. To use, such components are not able to function properly as a lubricant to increase the time required for the production of synthetic wood, there is a problem that decreases the productivity.
The present invention has been made to solve the above problems, an object of the present invention is to improve the flow of the polymer during the production of synthetic wood by using an ester lubricant and an amide lubricant as a lubricant used in the production of synthetic wood By providing a fast flow in the processing machine to provide a synthetic wood and a method of manufacturing the same to improve the productivity and processability of the synthetic wood.
Synthetic wood according to the present invention for achieving the above objects,
In synthetic wood comprising wood flour, thermoplastic synthetic resin, binder, filler and lubricant, the lubricant is characterized in that the mixture consisting of an ester lubricant and an amide lubricant.
At this time, the lubricant is characterized in that the mixture consisting of 10 to 90% by weight of the ester-based lubricant and 10 to 90% by weight of the amide lubricant.
In addition, the synthetic wood is characterized in that it further comprises a vinyl-like pellets prepared by molding vinyl, and pearl powder.
The synthetic wood is 50 to 70% by weight of wood, 15 to 35% by weight of thermoplastic synthetic resin, 1 to 3% by weight of binder, 5 to 15% by weight of vinyl pellet, 1 to 5% by weight of filler, lubricant Characterized in that it comprises 1 to 5% by weight and 1 to 5% by weight pearl powder.
On the other hand, the method for producing a synthetic wood according to the present invention,
A method for producing a synthetic wood comprising wood flour, thermoplastic synthetic resin, binder, filler and lubricant, comprising: a first mixture for mixing wood flour, thermoplastic resin, binder, mold release agent, vinyl pellet and filler to form a mixed composition A process step, a sterilization step of sterilizing by applying heat to the mixed composition in the first mixing step, and a second mixing step of mixing an ester lubricant, an amide lubricant, and pearl powder to generate a mixed lubricant; And a blending step of forming a main material by blending the mixed composition and the mixed lubricant which have been subjected to the sterilization step and the second mixing process step, and the main material formed in the compounding step at a temperature of 150 to 300 ° C. through an extruder or an injection molding machine. Synthetic wood production step of melting for 30 minutes and then extrusion or injection to produce a synthetic wood and Characterized in that configured to include a cooling step for cooling the wood-based composite at room temperature.
According to the present invention, by using a lubricant consisting of a mixture of an ester-based lubricant and an amide-based lubricant in the production of synthetic wood to improve the flow of the polymer in the production of synthetic wood to have a fast flow in the processing machine synthetic wood It has an excellent effect of improving the productivity and workability.
Figure 1 (a), (b) is a view showing a comparison of synthetic wood using a lubricant applied to the present invention, and other wood lubricant.
2 is a flow chart showing a method for producing a synthetic wood according to the present invention.
Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the synthetic wood according to the present invention and its manufacturing method.
Figure 1 (a), (b) is a view showing a comparison of synthetic wood using a lubricant applied to the present invention, and synthetic wood using other lubricants, Figure 2 shows a method for producing a synthetic wood according to the present invention It is a flow chart.
The present invention generally improves the flowability of the polymer when producing a composite wood made by mixing wood powder and resin for use as a building material to have a fast flow in the processing machine to improve the productivity and processability of the synthetic wood The present invention relates to a synthetic wood and a method for manufacturing the same. First, the synthetic wood according to the present invention comprises wood flour, a thermoplastic synthetic resin, a binder, a filler, and a lubricant.
In more detail, the wood powder is composed of recycled wood and wood shavings, sawdust and the like, 50 to 70% by weight is used.
That is, in order to meet the European synthetic wood standard, the content of wood powder should be added at least 50% by weight or more, and should not exceed 70% by weight in consideration of the content of other components.
Next, the thermoplastic synthetic resin is used to improve the heat resistance and weather resistance of the synthetic wood, and the synthetic wood has transparency, mainly selected from the group consisting of polyethylene (polyetylene), polypropylene (polypropylene) and mixtures thereof polymer).
At this time, the thermoplastic synthetic resin is used 15 to 35% by weight, because when considering the content of the other components and the thermoplastic synthetic resin is included in less than 15% by weight, the bonding strength with the wood powder falls.
Next, the binder serves to improve the adhesion between the two substrates by reducing the tension of the interface by acting at the interface between incompatible wood flour and thermoplastic synthetic resin, thermoplastic synthetic resin or between the thermoplastic synthetic resin and the filler. In the mixing process, the adhesive shear force is increased to increase the mixing efficiency.
At this time, the binder is excellent in binding and bonding, and chemical resistance, that is, using a maleic anhydride (MAH) -based binder or a silane-based (Silane) binder with good resistance to corrosion, the content is 1 to 3% by weight This is because when the content of the binder is less than 1% by weight, the effect of the above-described binder is not well exhibited, and when the content of the binder is more than 5% by weight, the amount of the binder is too high compared to the content of other components.
Next, the filler (Filler) is selectively used for the purpose of improving long-term deformation due to impact strength and bending strength, heat deformation temperature and load, and improve the flame retardancy and dispersibility, according to the purpose Calcium (CaCO3), talc (Talc), aluminum hydroxide (ATH), magnesium hydroxide (Mg (OH) 2) and the like can be used.
At this time, the content of the filler may vary depending on the purpose, it is generally preferred to be 1 to 5% by weight in consideration of the content of the entire component.
Next, the lubricant externally provides lubrication between each component and the metal components provided in the processing equipment in the production process of the synthetic wood, and internally reduces the frictional force in the mixing process of each component of the synthetic wood It is to improve the production speed.
At this time, the lubricant is to use a lubricant consisting of a mixture of ester-based lubricants and amide-based lubricants, to improve the productivity and processability of the synthetic wood.
In more detail, the lubricant composed of a mixture of the ester-based and amide-based lubricants lowers the bulk density through partial compatibility with each of the above-mentioned components and at the same time the lubricity between the molecules By supplying and sliding each other, the flow between the processing machine (extruder, mold) and the mixture of wood powder and thermoplastic synthetic resin, etc. during the production of synthetic wood is smooth, so that it has fast flow in the processing machine. It is possible to improve the speed and at the same time improve the workability by modifying the surface properties of the finished synthetic wood.
In this case, the mixing ratio of the ester-based lubricant and amide-based lubricant constituting the lubricant is preferably 10 to 90% by weight of each of the ester-based lubricant and the amide-based lubricant, which is 10% by weight of any one of the two components It is because the above-mentioned effect does not appear correctly when it becomes less.
In addition, the lubricant consisting of the content ratio is included 1 to 5% by weight of the total synthetic wood.
On the other hand, Figure 1 (a), (b), when using a lubricant consisting of a mixture of the ester-based lubricant and amide-based lubricant in the manufacturing process of synthetic wood, and conventional calcium stearate (Calcium Stearate), Jinx Compared to the case of using a stearate (Zinc Stearate) or an anionic surfactant as a lubricant, when using a lubricant consisting of a mixture of an ester lubricant and an amide lubricant as in the present invention, the bond between the wood powder and synthetic resin and It can be seen that the overall surface of the synthetic wood is made much smoother.
In addition, Table 1 below shows a comparison of the time required for the production of synthetic wood when using a conventional lubricant and when using a lubricant consisting of a mixture of an ester lubricant and an amide lubricant used in the present invention.
As can be seen from the above table, when all the other conditions were used in the same condition as the lubricant composed of a mixture of an ester lubricant and an amide lubricant as in the present invention, the total time required to manufacture the synthetic wood was 20.7%. You can see that the shortened.
In addition, in the case of using a lubricant composed of a mixture of an ester lubricant and an amide lubricant as in the present invention, the flow in the processing machine can be made quickly and smoothly to lower the injection temperature, it is possible to shorten the time required for cooling Thus, the manufacturing time of the overall synthetic wood can be further shortened.
In addition, it may further include a pigment for imparting color to the synthetic wood, the content of the pigment is preferably to be 1 to 5% by weight in consideration of the total content and the total ratio of the color can be included.
Meanwhile, the synthetic wood may further include a releasing agent and a dispersing agent. The releasing agent serves to make the molded product fall off when mixing a plurality of materials or from a mold or a molding machine, and the dispersing agent uses a pigment. If the color is to be evenly dispersed, the content is to be about 1 to 3% by weight of the total mixture.
In addition, the mixture for producing the synthetic wood may further include a vinyl pellet and pearl powder, the vinyl pellet is formed by molding the vinyl is used to improve the elastic force of the synthetic wood.
That is, since the wood powder used as the main material of the synthetic wood does not have a high elastic force, the elastic force of the synthetic wood can be improved by including vinyl pellets manufactured by molding vinyl to improve the elastic force of the synthetic wood.
At this time, the content of the vinyl pellet is preferably to be about 5 to 15% by weight of the total mixture, it is difficult to obtain the desired elastic force when the content of the vinyl pellet is less than 5% by weight, the content is 15% by weight If it exceeds, the strength of the synthetic wood falls.
In addition, the pearl powder is added to improve the antimicrobial properties of the synthetic wood, the content is to be about 1 to 5% by weight of the total mixture.
If the content of the pearl powder is less than 1% by weight, it is difficult to expect the antimicrobial effect, when it exceeds 5% by weight because it is not properly combined with other components.
In addition, the pearl powder has the effect that the synthetic wood can look luxurious in appearance by reflecting the soft light when the synthetic wood is externally illuminated.
On the other hand, the manufacturing process of the synthetic wood according to the present invention, as shown in Figure 2, the first mixing step (S10), sterilization step (S20), the second mixing step (S30), the mixing step (S40) ), Comprising a synthetic wood production step (S50) and the cooling step (S60).
In more detail, the first mixing process step (S10) relates to a step of producing a mixed composition by mixing materials including wood powder, thermoplastic synthetic resin, binder, mold release agent, vinyl pellet, dispersant and filler, wherein the synthesis Depending on the purpose of the wood, pigments and dispersants of various colors may be further included.
In addition, in the case of melting for mixing the materials, a stabilizer may be included for stabilization.
Here, since the content of the components are as described above, a detailed description thereof will be omitted.
Next, the sterilization step (S20) relates to a step of sterilizing by applying heat to the mixed composition produced in the first mixing process step (S10), using a stirrer to a temperature of about 80 ~ 100 ℃ Heating for about an hour removes some impurities that may enter the first mixing process and removes bacteria contained in the materials.
Next, the second mixing process step (S30) relates to a step of generating a mixed lubricant by mixing an ester-based lubricant, an amide-based lubricant and pearl powder, first mixing the ester-based lubricant and an amide-based lubricant to generate a mixed lubricant The mixed lubricant will then contain pearl powder.
At this time, the content of the ester-based lubricant and the amide-based lubricant to include 10 to 90% by weight, respectively, the effect and content of the mixed lubricant is the same as described above, so a detailed description thereof will be omitted.
Next, the blending step (S40) relates to the step of blending the mixed composition and the mixed lubricant passed through the sterilization step (S20) and the second mixing process step (S30) to form a main material, the blender and the mixed lubricant blender The main material is formed by mixing in the mixture.
At this time, as described above, the reason for separately performing the first mixing process step (S10) and the second mixing process step (S20) is that there is a concern that the material is deteriorated by heat when mixed with a material having different properties. Therefore, the substances that may be deteriorated are mixed with each other and then formed into one through the compounding step (S40).
Next, the synthetic wood production step (S50) is a step of producing a synthetic wood by melting the main material formed in the compounding step (S40) for 30 minutes through an extrusion molding machine or an injection molding machine at a temperature of 150 ~ 300 ℃ and extrusion or injection When the molding temperature is less than 150 ℃, the melting is not done properly, there is a high risk of defects, if the molding temperature exceeds 300 ℃ deterioration phenomenon occurs in vinyl pellets, pearl powder, etc. to achieve the desired performance You won't get it.
At this time, the flow of the mixed composition and the metal component of the processing machine is facilitated by the use of the above-described mixed lubricant, so that the mixed composition has a fast flow in the processing machine, thereby improving the production rate of the synthetic wood.
Finally, the cooling step (S60) relates to the step of cooling the synthetic wood extruded or injection-molded in a predetermined shape through an extrusion molding machine or an injection molding machine in the synthetic wood production step (S50) at a room temperature of about 20 ℃ In the case of rapid thermal change in the finished synthetic wood, the thermal deformation such as warping of the synthetic wood may occur, so it is gradually cooled at room temperature.
Therefore, according to the synthetic wood according to the present invention and a method for manufacturing the same, by using a lubricant composed of a mixture of an ester lubricant and an amide lubricant in the production of synthetic wood to improve the flow of the polymer during the production of synthetic wood in the processing machine By having a fast flow in the can improve the productivity and workability of the synthetic wood, including the plastic pellets in the production of synthetic wood to have an excellent effect, such as to improve the elastic force of the synthetic wood.
Although the above embodiments have been described with respect to the most preferred examples of the present invention, it is not limited to the above embodiments, and it will be apparent to those skilled in the art that various modifications are possible without departing from the technical spirit of the present invention.
The present invention relates to a synthetic wood and a method of manufacturing the same, and more particularly, to improve the flow of the polymer in the production of synthetic wood made by mixing wood flour and resin for use as building materials, etc. The present invention relates to a synthetic wood and a method of manufacturing the same so that the productivity and processability of the synthetic wood can be improved by having flowability.
S10: first mixing process step S20: sterilization step
S30: second mixing process step S40: mixing step
S50: synthetic wood production step S60: cooling step
Claims (5)
The lubricant is a synthetic wood, characterized in that consisting of a mixture of ester-based lubricants and amide-based lubricants.
The lubricant is a synthetic wood, characterized in that consisting of a mixture of 10 to 90% by weight of the ester-based lubricant and 10 to 90% by weight of the amide-based lubricant.
The synthetic wood is a synthetic wood, characterized in that it further comprises a vinyl-like pellets produced by molding vinyl, and pearl powder.
The synthetic wood is 50 to 70% by weight of wood, 15 to 35% by weight of thermoplastic synthetic resin, 1 to 3% by weight of binder, 5 to 15% by weight of vinyl pellet, 1 to 5% by weight of filler, and 1 to 1% of lubricant. 5% by weight and 1-5% by weight of pearl powder synthetic wood, characterized in that made.
A first mixing process step of mixing materials comprising wood flour, thermoplastic resin, binder, mold release agent, vinyl pellet and filler to produce a mixed composition,
A sterilization step of sterilizing by applying heat to the mixed composition in the first mixing step;
A second mixing process step of mixing an ester lubricant, an amide lubricant, and pearl powder to produce a mixed lubricant,
A blending step of forming a main material by blending the mixed composition and the mixed lubricant which have undergone the sterilization step and the second mixing step;
Synthetic wood production step of producing a synthetic wood by melting the main material formed in the compounding step at an temperature of 150 ~ 300 ℃ through an extrusion molding machine or an injection molding machine for 30 minutes and then extrusion or injection;
Method for producing a composite timber comprising a cooling step of cooling the synthetic timber at room temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| KR1020110029161A KR20120110953A (en) | 2011-03-31 | 2011-03-31 | Wood polymer comoisits and the manufacturing method of the same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020110029161A KR20120110953A (en) | 2011-03-31 | 2011-03-31 | Wood polymer comoisits and the manufacturing method of the same |
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| KR20120110953A true KR20120110953A (en) | 2012-10-10 |
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| KR1020110029161A KR20120110953A (en) | 2011-03-31 | 2011-03-31 | Wood polymer comoisits and the manufacturing method of the same |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101476930B1 (en) * | 2013-09-24 | 2014-12-24 | 박준남 | The support structure for extended synthetic wood deck road |
| KR20160046590A (en) | 2014-10-21 | 2016-04-29 | (주)경동월드와이드 | Manufacturing method of wpc |
| KR20160046709A (en) | 2014-10-21 | 2016-04-29 | (주)경동월드와이드 | Wood-plastic composite comprising semi-carbonized wood powder |
| KR102136095B1 (en) * | 2019-08-20 | 2020-07-23 | 주식회사 더우드 | Eco-friendly wood-plastic composite having antifungal activity, and method of manufacturing the same |
| KR20210111669A (en) * | 2020-03-03 | 2021-09-13 | 구동길 | Manufacturing method of synthetic wood with weather resistance and synthetic wood |
-
2011
- 2011-03-31 KR KR1020110029161A patent/KR20120110953A/en not_active Application Discontinuation
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101476930B1 (en) * | 2013-09-24 | 2014-12-24 | 박준남 | The support structure for extended synthetic wood deck road |
| KR20160046590A (en) | 2014-10-21 | 2016-04-29 | (주)경동월드와이드 | Manufacturing method of wpc |
| KR20160046709A (en) | 2014-10-21 | 2016-04-29 | (주)경동월드와이드 | Wood-plastic composite comprising semi-carbonized wood powder |
| KR102136095B1 (en) * | 2019-08-20 | 2020-07-23 | 주식회사 더우드 | Eco-friendly wood-plastic composite having antifungal activity, and method of manufacturing the same |
| KR20210111669A (en) * | 2020-03-03 | 2021-09-13 | 구동길 | Manufacturing method of synthetic wood with weather resistance and synthetic wood |
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