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Flooring material including a PLA surface layer having wood patterns

A technology for floor materials and surface layers, applied in floor coverings, wood layered products, floors, etc., can solve problems such as insufficient strength, achieve the effect of solving height differences and improving water resistance

Inactive Publication Date: 2013-09-11
LG HAUSYS LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, this natural floor material has insufficient strength, has disadvantages in formation of cracking due to moisture penetration and widening of gaps when heated

Method used

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  • Flooring material including a PLA surface layer having wood patterns
  • Flooring material including a PLA surface layer having wood patterns
  • Flooring material including a PLA surface layer having wood patterns

Examples

Experimental program
Comparison scheme
Effect test

preparation example

[0114] Preparation of transparent layer

[0115] For 100 parts by weight of PLA resin, 2002D (melt index: less than 3, NatureWorks LLC), 20 parts by weight of ATBC, 10 parts by weight of acrylic copolymer, 5 parts by weight of stearic acid, and 5 parts by weight of carbodiimide , first kneaded using an extruder, kneaded using a Banbury mixer at 140°C, and then underwent primary and secondary mixing at 140°C using 2 rolls. The prepared raw material was then subjected to calendering at 130° C., thereby producing a sheet having a thickness of about 0.6 mm.

[0116] Preparation of printing layers

[0117] Except using 100 parts by weight of PLA resin, 30 parts by weight of ATBC, 10 parts by weight of acrylic acid copolymer, 5 parts by weight of stearic acid, 5 parts by weight of diisocyanate, 5 parts by weight of carbodiimide, Except for 50 parts by weight of calcium carbonate, and 20 parts by weight of titanium dioxide, a 0.2 mm thick sheet was prepared in the same manner as fo...

example 1

[0146] After depositing the adhesive, synthetic resin layers, plywood layers, and wood-grain PLA surface layers are stacked and integrated by cold pressing, followed by surface coating and cutting into tongue-and-groove shapes, thereby preparing wood-grain flooring Material f.

[0147] In this example, the PLA surface layer has a thickness of 0.3-3.0 mm, the plywood layer has a thickness of 4.2-12.0 mm, and the polyvinyl chloride layer is set as a synthetic resin layer having a thickness of 1.2-4.5 mm, so that the floor material has a thickness of 7.0 mm. -15mm total thickness.

example 2

[0149] A flooring material was prepared in the same manner as in Example 1 except that the synthetic resin layer included 75 parts by weight of calcium carbonate based on 100 parts by weight of the polyvinyl chloride layer.

[0150] In addition, 10 parts by weight of emerald or loess are further added based on 100 parts by weight of calcium carbonate.

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Abstract

The present invention relates to a flooring material including a PLA surface layer having a wood pattern. The flooring material includes a surface layer including at least one layer containing a PLA resin, a plywood layer including a veneer disposed on the undersurface of the surface layer, and a synthetic resin layer disposed on the undersurface of the plywood layer. The flooring material is cut in a tongue & groove shape.

Description

technical field [0001] The present invention relates to a flooring material including a polylactic acid (PLA) surface layer having wood grains, and more particularly, to a technique for forming a flooring material using environmentally friendly PLA resin. Background technique [0002] Flooring materials based on petroleum resins such as polyvinyl chloride (PVC) are mainly used in buildings such as houses, apartments, offices, stores and the like. [0003] Polyvinyl chloride flooring materials are manufactured by extrusion or calendering of resins such as polyvinyl chloride. However, since polyvinyl chloride is a petroleum-based product, severe supply problems may be encountered due to depletion of petroleum. [0004] In addition, since polyvinyl chloride (PVC) flooring materials generate a large amount of toxic substances in use or in handling, it is necessary to suppress their use as much as possible in consideration of environmental protection. [0005] Therefore, in rec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04F15/10E04F15/02
CPCE04F15/107B32B21/08B32B21/14B32B2471/00B32B7/12B32B27/065B32B27/12B32B27/18B32B27/20B32B27/36B32B2266/0264B32B2307/412B32B2307/75Y10T428/24066B32B5/12
Inventor 金智雄金圭烈
Owner LG HAUSYS LTD
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