US20140023871A1 - Synthetic Wood Having Elastic Layer - Google Patents

Synthetic Wood Having Elastic Layer Download PDF

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Publication number
US20140023871A1
US20140023871A1 US14/008,342 US201214008342A US2014023871A1 US 20140023871 A1 US20140023871 A1 US 20140023871A1 US 201214008342 A US201214008342 A US 201214008342A US 2014023871 A1 US2014023871 A1 US 2014023871A1
Authority
US
United States
Prior art keywords
synthetic wood
elastic layer
layer
wood
synthetic
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
Application number
US14/008,342
Other languages
English (en)
Inventor
Dong Jin Kim
Kyung Gu Nam
Jung Il Son
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LX Hausys Ltd
Original Assignee
LG Hausys Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by LG Hausys Ltd filed Critical LG Hausys Ltd
Assigned to LG HAUSYS, LTD. reassignment LG HAUSYS, LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KIM, DONG JIN, NAM, KYUNG GU, SON, JUNG IL
Publication of US20140023871A1 publication Critical patent/US20140023871A1/en
Abandoned legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
    • B32B21/02—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board the layer being formed of fibres, chips, or particles, e.g. MDF, HDF, OSB, chipboard, particle board, hardboard
    • 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
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00—Flooring
    • E04F15/02—Flooring or floor layers composed of a number of similar elements
    • E04F15/10—Flooring or floor layers composed of a number of similar elements of other materials, e.g. fibrous or chipped materials, organic plastics, magnesite tiles, hardboard, or with a top layer of other materials
    • 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
    • B27N3/28—Moulding or pressing characterised by using extrusion presses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
    • B32B21/04—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B21/08—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L97/00—Compositions of lignin-containing materials
    • C08L97/02—Lignocellulosic material, e.g. wood, straw or bagasse
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2264/00—Composition or properties of particles which form a particulate layer or are present as additives
    • B32B2264/06—Vegetal particles
    • B32B2264/062—Cellulose particles, e.g. cotton
    • B32B2264/067—Wood particles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2270/00—Resin or rubber layer containing a blend of at least two different polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2274/00—Thermoplastic elastomer material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/744—Non-slip, anti-slip
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2471/00—Floor coverings
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31826—Of natural rubber

Definitions

  • the present invention relates to a synthetic wood having an elastic layer, and more particularly to a synthetic wood having an elastic layer, which a rubber material is provided thereon to increase surface elasticity thereof and improve its anti-slip function, thereby increasing a contact surface area upon walking and thus improving slip resistance.
  • the synthetic wood is being recognized as a substitute for a general wooden material due to its excellent exterior effect and environmentally friendly characteristics.
  • the synthetic wood has been used widely in the United states and Japan from about 15 years ago and it was from about 3 or 4 years ago to be used in earnest in Korea. Due to its harmlessness to human body, recyclability, environmentally friendly characteristics, excellent heat resistance and durability, the future relevant market is expected to be increased.
  • the synthetic wood is being used widely as an alternative construction material which can be used in a public place such as a park, a walk and a school.
  • a plasticizer, an adhesive, a pigment, an infrared blocker and a stabilizer are mixed at high temperature, and wood flour and rice husks are further mixed in a small amount and then the mixture is extrusion-molded with high pressure.
  • the mixture of the plastic and wood flour is injection-molded into a certain shape.
  • the mixture is extruded with high pressure, thereby injection-molding a product.
  • a deck product which is used in a footpath and a walk is a flooring material on which many people walk. It is important to prevent negligent accidents due to the slip, and particularly, in case of being moisture on the road surface after the snow or rain, there is a danger of injury due to the slip.
  • the anti-slip functions can be maintained at the initiatory stage, but normal wear and tear occurs as times goes by. Thus, there is a problem that the worn portion thereof becomes further slippery.
  • An embodiment of the present invention is directed to providing a synthetic wood having an elastic layer, on which a rubber material is provided so as to form the surface elastic layer, thereby increasing a contact surface area upon walking and thus improving its anti-slip function.
  • the present invention provides a synthetic wood having an elastic layer, wherein a synthetic wood layer and the elastic layer formed at one side of the synthetic wood layer are formed integrally.
  • the synthetic wood layer is integrally formed with the elastic layer through a dual extruding process.
  • the elastic layer is composed of 15 to 35 parts by weight of a synthetic resin, 5 to 15 parts by weight of a thermoplastic elastomer, 50 to 70 parts by weight of wood flour and 1 to 15 parts by weight of an additive.
  • the present invention provides a method of manufacturing a synthetic wood having an elastic layer, including extruding a synthetic wood layer through one side of an extrusion mold; extruding an elastic layer through the other side of the extrusion mold; forming a boundary between the synthetic wood layer and the elastic layer; and cooling the synthetic wood, in which the synthetic wood layer and the elastic layer are integrally formed, to a predetermined temperature.
  • the method may further include cutting the cooled synthetic wood having the elastic layer in a predetermined length.
  • FIG. 1 is a view of a synthetic wood having an elastic layer according to an embodiment of the present invention.
  • a synthetic wood 100 having an elastic layer 10 is characterized in that the elastic layer 10 is integrally formed on an upper surface of a synthetic wood layer 20 , and particularly, the elastic layer 10 is integrally formed on the upper surface of the synthetic wood layer 20 by a dual extrusion method.
  • the synthetic wood layer 20 is manufactured by mixing a plasticizer, an adhesive, a pigment, an infrared blocker and a stabilizer at high temperature, further mixing wood flour and rice husks in a small amount and then extruding the mixture with high pressure.
  • a composition and a composition ratio thereof are changed according to its manufacturers.
  • the slip resistance was measured in the state that a static load of 60 kg was applied thereto, on the basis of KS M 3510 (a testing method of a polymer flooring material). That is, the slip resistance was measured by a reciprocating friction test of about 10,000 times using shoes having a urethane sole, and a result thereof is shown in table 1.
  • thermoplastic elastomer is added to a surface thereof in order to permanently increase the surface elasticity, it is possible to increase a contact surface area between pedestrian's shoes (mostly, rubber) and the synthetic wood 100 and thus improve the anti-slip performance.
  • the harder and stiffer the surface is the more the surface is worn.
  • the synthetic wood having the elastic layer according to the embodiment of the present invention has high elasticity, the wearing is reduced, thereby providing excellent anti-slip performance.
  • step S 100 of extruding a synthetic wood layer through one side of an extrusion mold includes s step S 100 of extruding a synthetic wood layer through one side of an extrusion mold; a step S 200 of extruding an elastic layer through the other side of the extrusion mold; a step S 300 of forming a boundary between the synthetic wood layer and the elastic layer; and a step S 400 of cooling the synthetic wood, in which the synthetic wood layer and the elastic layer are integrally formed, to a predetermined temperature.
  • step S 100 of extruding the synthetic wood layer and the step S 200 of extruding the elastic layer through the other side of the extrusion mold are performed at a front side of the extrusion mold, and the steps S 300 and S 400 are performed at a rear side thereof.
  • the method may further include a step S 500 of cutting the synthetic wood having the elastic layer in a predetermined length.
  • the rubber material is provided on the upper surface of the synthetic wood so as to form the surface elastic layer. Therefore, it is possible to provide the synthetic wood which has the environmentally friendly characteristics, excellent heat resistance and durability while maintaining its own properties and appearance.
  • the slip resistance is improved.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Architecture (AREA)
  • Chemical & Material Sciences (AREA)
  • Forests & Forestry (AREA)
  • Manufacturing & Machinery (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Organic Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Medicinal Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Floor Finish (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Laminated Bodies (AREA)
US14/008,342 2011-03-30 2012-02-14 Synthetic Wood Having Elastic Layer Abandoned US20140023871A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
KR10-2011-0028621 2011-03-30
KR20110028621A KR20120110634A (ko) 2011-03-30 2011-03-30 탄성층이 구비된 합성목재
PCT/KR2012/001113 WO2012134054A2 (en) 2011-03-30 2012-02-14 Synthetic wood having elastic layer

Publications (1)

Publication Number Publication Date
US20140023871A1 true US20140023871A1 (en) 2014-01-23

Family

ID=46932031

Family Applications (1)

Application Number Title Priority Date Filing Date
US14/008,342 Abandoned US20140023871A1 (en) 2011-03-30 2012-02-14 Synthetic Wood Having Elastic Layer

Country Status (6)

Country Link
US (1) US20140023871A1 (ko)
EP (1) EP2691218B1 (ko)
JP (1) JP2014509565A (ko)
KR (1) KR20120110634A (ko)
CN (1) CN103476556B (ko)
WO (1) WO2012134054A2 (ko)

Citations (2)

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US20090298974A1 (en) * 2008-05-27 2009-12-03 Zephyros, Inc. Composite with natural fibers

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Also Published As

Publication number Publication date
KR20120110634A (ko) 2012-10-10
EP2691218B1 (en) 2016-04-13
EP2691218A2 (en) 2014-02-05
WO2012134054A2 (en) 2012-10-04
CN103476556A (zh) 2013-12-25
JP2014509565A (ja) 2014-04-21
CN103476556B (zh) 2016-02-03
EP2691218A4 (en) 2014-08-27
WO2012134054A3 (en) 2012-12-13

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AS Assignment

Owner name: LG HAUSYS, LTD., KOREA, REPUBLIC OF

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:KIM, DONG JIN;NAM, KYUNG GU;SON, JUNG IL;REEL/FRAME:031301/0232

Effective date: 20130927

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION