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Free laying floor tile having pvc based backing material for preventing tile from slipping provided on back surface thereof

a backing material and free-laying technology, applied in the field of loose-leaf floor tiles, can solve the problems of poor water resistance, prone to fracture of foamed material sheets, and difficulty in separating sheets

Inactive Publication Date: 2006-03-09
TAJIMA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

"The present invention provides a loose-lay floor tile with a nonskid backing material that is made by solidifying a paste sol containing a plasticizer and a polyvinyl chloride-based resin. The floor tile can also contain a foam stabilizer and a foamed material obtained by mechanically foaming and solidifying the paste sol. The polyvinyl chloride-based resin can be a copolymer of vinyl chloride and vinyl acetate or a mixture of polyvinyl chloride and polyvinyl acetate. The plasticizer can be a phthalic acid-based plasticizer. The floor tile has an expansion rate of 1.5 to 4."

Problems solved by technology

(b) Poor Resistance to Water
When sheets of the material are packaged and stored for a long time in the condition such that adhesive faces of the sheets are faced to each other, separation of the sheets becomes difficult, and the sheets of the foamed material are occasionally fractured when the sheets are forced to be separated.
Therefore, it is inevitable that the quality of the acrylic mechanically foamed materials remains unreliable when tiles having the material are used by directly laying on a floor.

Method used

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  • Free laying floor tile having pvc based backing material for preventing tile from slipping provided on back surface thereof
  • Free laying floor tile having pvc based backing material for preventing tile from slipping provided on back surface thereof

Examples

Experimental program
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Effect test

example 1

[0050] A nonskid backing material in accordance with the present invention was prepared by mixing the following components, followed by mechanically foaming the resultant mixture (the expansion rate: 2.8). As for the amount of the component, “part” means “part by weight”.

A paste of a PVC resin80parts(a copolymer containing 7% of vinyl acetate;the number-average molecular weight: 1,700)A PVC resin for blending20parts(a copolymer containing 5% of vinyl acetate;the number-average molecular weight: 1,100)A plasticizer (DOP)120partsCalcium carbonate treated with fatty10partsacids on the surfaceA silicone-based foam stabilizer7partsA modified urea-based thixotropy agent0.2parts

[0051] On the back face of one loose-lay floor tile which had a size of a 50 cm square and a thickness of 5 mm and made of a plastic, stripes were formed with 50 g of the nonskid backing material prepared above. The floor tile having the backing material was heated by an infra-heater at 165° C. for 5 seconds to so...

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Abstract

A loose-lay floor tile which has on a back face a nonskid backing material obtained by solidifying a paste sol containing a plasticizer and one of polyvinyl chloride, copolymers of vinyl chloride and vinyl acetate and mixtures of polyvinyl chloride and polyvinyl acetate. Drawbacks of conventional acrylic mechanically foamed materials such as water absorption, resistance to water, resistance to alkali and strength of a foamed material are improved.

Description

TECHNICAL FIELD [0001] The present invention relates to a loose-lay floor tile which has on the back face a nonskid backing material using a polyvinyl chloride-based raw material (“polyvinyl chloride” will be referred to as “PVC”, hereinafter). BACKGROUND ART [0002] As the material for providing the nonskid property to a loose-lay floor tile, mechanically foamed materials containing an emulsion of an acrylic resin as the main component (referred to as “acrylic mechanically foamed materials, hereinafter) are conventionally used. The production of the above material has been studied, and the properties of the material have been evaluated. The results of the study and the evaluation show that the above material has the following drawbacks (a) to (d): [0003] (a) Markedly Great Water Absorption [0004] Water is absorbed through joints during maintenance. [0005] Water is absorbed during washing for recycling. [0006] Water in a moist ground coat is absorbed. [0007] (b) Poor Resistance to Wa...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): E04F15/00B32B27/30B60N3/04D06N7/00E04F15/02E04F15/10
CPCB60N3/046E04F15/10E04F15/02E04F15/02172D06N7/00B32B27/30
Inventor SUZUKI, NAOYUKIPAN, QINGYANGISHIYAMA, SEISHIRO
Owner TAJIMA
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