KR19980048920A - Manufacturing method of artificial wood using waste plastic and rice husk - Google Patents
Manufacturing method of artificial wood using waste plastic and rice husk Download PDFInfo
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- KR19980048920A KR19980048920A KR1019960067570A KR19960067570A KR19980048920A KR 19980048920 A KR19980048920 A KR 19980048920A KR 1019960067570 A KR1019960067570 A KR 1019960067570A KR 19960067570 A KR19960067570 A KR 19960067570A KR 19980048920 A KR19980048920 A KR 19980048920A
- Authority
- KR
- South Korea
- Prior art keywords
- waste plastic
- wood
- artificial wood
- mixture
- rice husk
- Prior art date
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- 239000002023 wood Substances 0.000 title claims abstract description 37
- 239000004033 plastic Substances 0.000 title claims abstract description 24
- 229920003023 plastic Polymers 0.000 title claims abstract description 24
- 239000002699 waste material Substances 0.000 title claims abstract description 24
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 11
- 235000007164 Oryza sativa Nutrition 0.000 title claims abstract description 8
- 235000009566 rice Nutrition 0.000 title claims abstract description 8
- 239000010903 husk Substances 0.000 title claims abstract description 6
- 240000007594 Oryza sativa Species 0.000 title claims abstract 3
- 239000000203 mixture Substances 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 10
- 238000001125 extrusion Methods 0.000 claims abstract description 9
- 229920001935 styrene-ethylene-butadiene-styrene Polymers 0.000 claims description 5
- 239000004156 Azodicarbonamide Substances 0.000 claims description 2
- XOZUGNYVDXMRKW-AATRIKPKSA-N azodicarbonamide Chemical compound NC(=O)\N=N\C(N)=O XOZUGNYVDXMRKW-AATRIKPKSA-N 0.000 claims description 2
- 235000019399 azodicarbonamide Nutrition 0.000 claims description 2
- 241000209094 Oryza Species 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 240000002834 Paulownia tomentosa Species 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000011093 chipboard Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000007730 finishing process Methods 0.000 description 1
- 238000009408 flooring Methods 0.000 description 1
- 238000010137 moulding (plastic) Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000011120 plywood Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000002983 wood substitute Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
-
- 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
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- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- Dry Formation Of Fiberboard And The Like (AREA)
Abstract
본 발명은 폐자원을 활용한 인조목재의 제조방법에 관한 것이며, 그 목적은 폐플라스틱과 왕겨를 이용한 인조목재의 제조방법을 제공함에 있다.The present invention relates to a method for manufacturing artificial wood using waste resources, and its object is to provide a method for manufacturing artificial wood using waste plastic and chaff.
상기 목적을 달성하기 위한 본 발명은 폐플라스틱에 50-250중량%로 왕겨를 첨가한 후 혼합한 다음, 상기 혼합물을 160-200℃의 온도범위로 가열하고, 기계적으로 혼합하여 압출성형함을 특징으로 하는 폐플라스틱과 왕겨를 이용한 인조목재 제조방법에 관한 것을 그 기술적 요지로 한다.The present invention for achieving the above object is characterized in that after the addition of chaff to the waste plastic in 50-250% by weight and then mixed, the mixture is heated to a temperature range of 160-200 ℃, mechanically mixed by extrusion molding The technical gist of the method for manufacturing artificial wood using waste plastic and rice husk is used.
Description
본 발명은 폐자원을 활용한 인조목재의 제조방법에 관한 것으로써, 보다 상세하게는 폐플라스틱과 왕겨를 이용한 인조목재의 제조방법에 관한 것이다.The present invention relates to a method for manufacturing artificial wood using waste resources, and more particularly, to a method for manufacturing artificial wood using waste plastic and chaff.
점차 도시화와 산업화가 급속도로 진행되면서, 주택 및 산업시설 건축이 활성화되어 목재의 사용량 또한 증가되는 추세이다. 이러한 목재의 소비는 산림자원을 훼손하여 환경기능을 크게 약화시킴에 따라 목재생산과 환경기능을 조화시키기 위한 노력이 절실히 요구되고 있다.As urbanization and industrialization progress rapidly, the use of timber is increasing due to the activation of housing and industrial facility construction. As the consumption of timber damages forest resources and greatly weakens the environmental functions, efforts to harmonize wood production and environmental functions are urgently required.
한편, 천연목재는 여러 가지 사용처를 가지고 가장 널리 이용되는 재료중 하나이지만 건축자재 특히 면목, 목지봉 등으로 이용되기 위해서는 가공시간이 많이 소요됐으며, 또한 일회용품으로 사용하기엔 고가이고 일회 사용후 폐기에 따른 자원낭비의 문제가 있다. 또한, 공사시 천연목재의 특성상 수분흡수로 목재에 변형이 생기는 등 사용상의 어려움이 많다.On the other hand, natural wood is one of the most widely used materials with various uses, but it takes a lot of processing time to be used as building materials, especially cotton, wood rods, etc. There is a problem of waste of resources. In addition, due to the nature of the natural wood during construction there is a lot of difficulties in use, such as deformation occurs in the wood by water absorption.
이런 배경에서 천연목재를 대신 할 수 있는 합성목재를 제조하는 기술이 개발되어, 파티클보드나 칩보드, 베니어 합판 등이 상용화 되어져 왔으나, 이것 역시 주원료가 목재이거나 사용처의 제한 등으로 인하여 어려움을 겪어 오고 있다.In this background, the technology of manufacturing synthetic wood that can replace natural wood has been developed, and particle board, chip board, veneer plywood, etc. have been commercialized, but this has also been difficult due to the limitation of the main material or the use of wood. have.
종래, 이러한 문제를 해결하기 위하여 대표적인 방법으로 미국의 Eaglebrook사에서 만든 플라스틱만을 이용한 인조목재(Schaumburg Ⅱ., 3rd-4th, Nov. 1994, p 121-9, 8(13)참조)를 들 수 있는데, 상기 인조목재는 목재의 느낌이 나기는 하나 단순히 플라스틱 성형이 불가하고, 한 번 성형된 것은 새로운 마감가공이나 새로운 가공기술의 적용이 어려운 단점이 있다.Conventionally, in order to solve this problem, artificial wood using only plastic made by Eaglebrook, USA (see Schauburg II., 3rd-4th, Nov. 1994, p 121-9, 8 (13)), In addition, the artificial wood feels the wood, but simply plastic molding is not possible, once molded has a disadvantage that it is difficult to apply a new finishing process or a new processing technology.
따라서, 본 발명자는 상기 문제를 해결하기 위하여 연구와 실험을 행하고 그 근거하에 본 발명을 제안한 것으로서, 본 발명은 성형품의 표면자체가 목재와 흡사하며, 천연목재의 문제인 제품의 방향성이 없고, 흡수율이 적어 수분에 의한 복잡한 변화가 없으며 착색이 용이하고 치수안정성이 있는 폐플라스틱과 왕겨를 이용한 인조목재 제조방법을 제공하고자 하는데, 그 목적이 있다.Therefore, the present inventors conducted the research and experiment to solve the above problems and proposed the present invention on the basis of the present invention, the present invention is the surface itself of the molded article is similar to wood, there is no directivity of the product, which is a problem of natural wood, the absorption rate is The present invention aims to provide a method of manufacturing artificial wood using waste plastics and chaff that are easy to color and have no color change and are easy to color.
상기 목적을 달성하기 위한 본 발명은 폐플라스틱에 50-250중량%로 왕겨를 첨가한 후 혼합한 다음, 상기 혼합물을 160-200℃의 온도범위에서 용융시키고, 기계적으로 혼합하여 압출성형하는 폐플라스틱과 왕겨를 이용한 인조목재 제조방법에 관한 것이다.In order to achieve the above object, the present invention adds chaff to the waste plastic at 50-250% by weight, and then mixes, melts the mixture at a temperature range of 160-200 ° C., and mechanically mixes the extruded waste plastic. It relates to a method for manufacturing artificial wood using chaff.
이하, 본 발명에 대하여 상세히 설명한다.EMBODIMENT OF THE INVENTION Hereinafter, this invention is demonstrated in detail.
본 발명은 단순히 소각과 매립의 형태로 제거되어지는 폐플라스틱과 벼를 탈곡한 후 버려지는 벼의 겉겨 즉, 왕겨를 재활용하는데 특징이 있는데, 상기 폐플라스틱은 산업용 및 가정용으로 이용된 후 폐기되는 폐플라스틱이면 사용이 가능하다.The present invention is characterized by recycling the waste plastic that is simply removed in the form of incineration and landfill and rice paddy, which is discarded after threshing rice, that is, chaff, which waste plastic is disposed of after being used for industrial and household purposes. If it is plastic, it can be used.
본 발명에 따라 폐플라스틱에 첨가되는 왕겨의 양은 중량%로 50 이하의 경우 목재의 느낌보다는 플라스틱의 질감이 두드러지게 되고 강도 또한 급격한 저하가 일어나며, 중량%로 250 이상 첨가되는 경우 폐플라스틱의 양에 비해 왕겨의 양이 너무 많아 균일한 혼합이 이루어지지 않아 물성이 저하가 되므로 50-250중량%의 범위로 첨가하는 것이 바람직하다.According to the present invention, the amount of chaff added to the waste plastic is 50% or less by weight, and the texture of the plastic becomes more pronounced and the strength also decreases sharply than the feeling of wood. Compared with the amount of chaff is too large, even mixing is not made because the physical properties are reduced, it is preferable to add in the range of 50-250% by weight.
상기와 같이 배합된 폐플라스틱과 왕겨혼합물의 가열온도 즉, 압출성형시 내부온도는 160-200℃의 온도범위로 하는 것이 바람직한데, 그 이유는 일반적으로 폐플라스틱의 가공온도범위가 160℃ 이하의 온도에서는 용융점도가 너무 크기 때문에 균일한 혼합이 잘 이루어지지 않거나 균일한 혼합을 위한 시간이 너무 많이 걸리기 때문에 경제성이 없고, 200℃ 이상의 온도에서는 올레핀수지의 열변형으로 인한 인조목재의 물성저하를 초래할 수 있고, 또 왕겨가 열에 의해 타는 현상이 발생하기도 하기 때문이다. 이와 같은 가공온도설정은 압출성형에 있어서, 상당히 중요한 요소이다.The heating temperature of the waste plastic and rice husk mixture blended as described above, that is, the internal temperature at the time of extrusion molding is preferably in the temperature range of 160-200 ℃, the reason is that generally the processing temperature range of the waste plastic is less than 160 ℃ It is not economical because the melt viscosity is too high at the temperature and the uniform mixing is not performed well or it takes too much time for the uniform mixing. This is because chaff may burn due to heat. This processing temperature setting is a very important factor in extrusion molding.
상기와 같이 가열하여 폐플라스틱을 용융시키고 기계적으로 용융된 폐플라스틱과 왕겨를 혼합하면서 압출성형한다.By heating as described above, the waste plastic is melted and extruded while mixing the mechanically molten waste plastic and rice husk.
본 발명에 따라 상기 폐플라스틱과 왕겨 혼합물에 엘라스토머의 일종인 스틸렌-에틸렌-부타디엔-스틸렌(styrene-ethylene-butadiene-styrene(이하, 'SEBS'라 한다))을 2-25중량%의 범위로 첨가하여 압출성형하면 상용성과 충격강도가 향상된 인조목재를 얻을 수 있다. 그 이유는 SEBS의 양은 중량%로 2 이하로 첨가될 경우 첨가되지 않은 것과 비교시 큰 향상이 없고, 중량%로 25 이상 첨가시는 충격강도는 향상되어지나 굴곡강도의 급격한 감소로 인조목재로의 활용이 어렵기 때문이다.According to the present invention, styrene-ethylene-butadiene-styrene (hereinafter, referred to as 'SEBS'), which is a kind of elastomer, is added to the waste plastic and chaff mixture in the range of 2-25% by weight. By extrusion molding, an artificial wood can be obtained having improved compatibility and impact strength. The reason is that when the amount of SEBS is added at 2% by weight or less, there is no significant improvement compared with that which is not added. This is because it is difficult to use.
또한, 본 발명에 따라 상기 폐플라스틱과 왕겨 혼합물에 아조디카본아마이드(이하, 'AC'라 한다)를 적절하게 첨가하면 적정한 가공이 형성되어 굴곡강도와 충격강도가 크게 향상된 인조목재를 얻을 수 있다. 상기 AC의 첨가하는 량은 중량%로 2 이하의 경우 인조목재 내부의 균일한 기공형성이 어렵고 첨가하지 않은 것과 비교시 충격강도와 굴곡강도의 향상이 없으며, 중량%로 10 이상 첨가하는 경우 기공의 형성이 너무 많이 되어 목재로의 기능을 가지지 못하므로 중량 %로 2-10의 범위로 하는 것이 바람직하다.In addition, according to the present invention, when azodicarbonamide (hereinafter referred to as 'AC') is appropriately added to the waste plastic and chaff mixture, appropriate processing is formed to obtain artificial wood having greatly improved flexural strength and impact strength. . When the amount of AC added is less than 2% by weight, it is difficult to form uniform pores inside the artificial wood, and there is no improvement in impact strength and flexural strength as compared with no addition. It is preferable to set the weight ratio in the range of 2-10 because it is too much to have a function as wood.
본 발명의 일측면에 의하면 상기와 같은 혼합물을 압출성형할 때 압출조건으로 압출속도는 10-20rpm으로 하는 것이 보다 바람직하다. 이 범위를 벗어날 경우 불균일한 혼합과 재료의 타는 현상 등이 발생할 수 있으므로 천연목재와 비교하여 다소 특성이 열악해진다.According to one aspect of the present invention, when extruding the mixture as described above, the extrusion rate is more preferably set to 10-20 rpm. If it is out of this range, uneven mixing and burning of materials may occur, so the characteristics are somewhat inferior to natural wood.
이하, 실시예를 통하여 본 발명을 구체적으로 설명한다.Hereinafter, the present invention will be described in detail through examples.
실시예 1Example 1
폐플라스틱에 왕겨를 50-250중량%의 범위로 첨가한 후, 균일하게 혼합되도록 미리 섞은 다음, 압출기의 스크류 내부온도가 적정온도로 설정되었을 때, 압출기의 호퍼에 주입하여 용융 혼합하여 압출기에 부착되어 있는 몰드의 형태에 따라 일정한 형태의 제품을 성형하였다.After adding rice husk to the waste plastic in the range of 50-250% by weight, it is premixed to uniformly mix, and when the screw internal temperature of the extruder is set to an appropriate temperature, it is injected into the hopper of the extruder and melt mixed to attach to the extruder. According to the shape of the mold to be molded a certain type of product.
이때, 4영역(zone)에서 가열하는 방식의 압출기를 이용하여 하기 표1의 조건으로 압출성형하였으며, 상기 성형품의 기계적 특성을 측정하고, 그 결과를 하기 표2에 나타내었다.At this time, the extrusion was carried out under the conditions of the following Table 1 using an extruder of a heating method in four zones, the mechanical properties of the molded article was measured, and the results are shown in Table 2 below.
[표 1]TABLE 1
[표 2]TABLE 2
참고) 파티클 보드의 강도 : 150-200 ㎏/㎠Reference) Particle Board Strength: 150-200 ㎏ / ㎠
오동나무의 강도 : 200 ㎏/㎠Paulownia's strength: 200 ㎏ / ㎠
상기 표1에 나타난 바와 같이, 본 발명예(1-4)의 경우 천연목재보다 강도특성이 우수함을 알 수 있다.As shown in Table 1, in the case of the present invention (1-4) it can be seen that the strength characteristics are superior to natural wood.
실시예 2Example 2
실시예 1의 발명예(1)의 혼합물에 SEBS를 2-25중량%의 범위로 첨가한 후 실시예 1과 동일한 방법으로 압출성형한 다음, 기계적 특성을 측정한 후 그 결과를 하기 표3에 나타내었다.After adding SEBS to the mixture of Inventive Example (1) in Example 1 in the range of 2-25% by weight and extruding in the same manner as in Example 1, the mechanical properties were measured and the results are shown in Table 3 below. Indicated.
[표 3]TABLE 3
상기 표3에 나타난 바와 같이, 충격강도가 최고 300% 향상됨을 알 수 있었다.As shown in Table 3, it can be seen that the impact strength is improved up to 300%.
실시예 3Example 3
실시예 1의 발명예(1)의 혼합물에 AC를 2-10중량%의 범위로 첨가한 후 실시예 1과 동일한 방법으로 압출성형한 다음, 기계적 특성을 측정한 후 그 결과를 하기 표4에 나타내었다.After adding AC in the range of 2-10% by weight to the mixture of Inventive Example (1) of Example 1 and extruding in the same manner as in Example 1, after measuring the mechanical properties the results are shown in Table 4 Indicated.
[표 4]TABLE 4
상기 표4에 나타난 바와 같이, 발명(11-15)는 발명예(1-4)보다 굴곡강도 특성이 크게 향상되었다.As shown in Table 4, the invention (11-15) is significantly improved in flexural strength characteristics than the invention example (1-4).
상술한 바와 같이, 본 발명은 목재의 느낌과 나무로서의 강도를 가질 수 있도록 버려지는 왕겨를 사용하고, 여기에 폐플라스틱을 함께 이용함으로써 천연목재보다 월등한 특성을 가지는 인공목재를 제공할 수 있고, 상기 인공목재는 제품의 방향성이 없기 때문에 천연목재에서 가공시 문제되던 한방향 가공을 없앨 수 있고, 수분에 대한 흡수율이 없기 때문에 천연목재가 수분에 의해 심한 변형이 발생하던 것을 방지할 수 있다. 또한, 색상을 자유로이 할 수 있다는 장점이 있으며, 치수 안정성이 있어 동일한 형태의 목재를 대량 생산할 수 있다는 장점이 있다. 최종적으로 가장 큰 장점으로서는 환경보호 효과라고 할 수 있다. 그리고, 본 발명의 사용처로는 실내바닥재, 가구재, 벽재, 기타 목재대용품으로 사용할 수 있으며, 수분과 밀접한 부분에도 사용가능하다.As described above, the present invention can provide an artificial wood having superior characteristics than natural wood by using the chaff discarded to have a feeling of wood and strength as a wood, and using waste plastic together, The artificial wood can eliminate the one-way processing, which was a problem when processing in natural wood because there is no directionality of the product, and can prevent the natural wood from being severely deformed by moisture because there is no water absorption. In addition, there is an advantage that the color can be freely, and there is an advantage that can be mass-produced the same type of wood because of the dimensional stability. Finally, the biggest advantage is the environmental protection effect. In addition, the use of the present invention can be used as indoor flooring, furniture, wall, other wood substitutes, can also be used in close contact with moisture.
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Cited By (3)
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KR19990045863A (en) * | 1999-01-29 | 1999-06-25 | 서정수 | Aaaaa |
KR20010017104A (en) * | 1999-08-07 | 2001-03-05 | 김성모 | The Manufacturing Method of Synthetic Resin Plywood |
KR100636427B1 (en) * | 1999-12-23 | 2006-10-19 | 재단법인 포항산업과학연구원 | Manufacturing method of artificial wood and artificial wood manufactured accordingly |
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KR19990045863A (en) * | 1999-01-29 | 1999-06-25 | 서정수 | Aaaaa |
KR20010017104A (en) * | 1999-08-07 | 2001-03-05 | 김성모 | The Manufacturing Method of Synthetic Resin Plywood |
KR100636427B1 (en) * | 1999-12-23 | 2006-10-19 | 재단법인 포항산업과학연구원 | Manufacturing method of artificial wood and artificial wood manufactured accordingly |
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