Back to results
US 11,987,022 B2Granted
Tile-type decorative flooring material comprising non-slip foam, and method for manufacturing same
AssigneesDongshin Polymer Co., Ltd., Shinko Kasei Co., Ltd.
InventorDong Jin Oh
Life of this patent
Estimating the term…
Abstract
A tile-type decorative flooring material includes a surface-processed layer, a clear layer, a design-print layer, an underlayer, and a micro-embossed plastic foam part having a plastic foam layer and an adhesive film layer with micro-embossing. The flooring material provides a significant improvement in terms of slippage between the product and the floor surface in a construction process not using an adhesive.
Claims11
A tile-type decorative flooring material comprising:
- a flooring material part including a surface-processed layer, a clear layer, a design-print layer, and an underlayer;
- and
- a micro-embossed plastic foam part including a plastic foam layer and an adhesive film layer with micro-embossing,
- wherein the micro-embossing comprises irregularities having a depth (a) provided at regular intervals (b), and the micro-embossing satisfies Expression 1 below:
- a≥⅓*b [Expression 1]
- (herein, 0.08 mm≤a≤0.8 mm and 0.2≤b≤2 mm), and
- wherein the tile-type decorative flooring material has a coefficient of friction of 40 to 56 tested by using a pendulum of BS-7976-2.
4 more elements
A method for manufacturing a tile-type floor decorative flooring material, the method comprising:
- forming a flooring material part by laminating an underlayer, a design-print layer, a clear layer, and a surface-processed layer;
- forming a plastic foam layer by extruding a plastic foam layer composition on a rear surface of the underlayer, and electron beam crosslinking, and then foaming or chemical foaming the composition;
- and
- forming an adhesive film layer by adhering an adhesive film layer composition to a rear surface of the plastic foam layer while extruding the adhesive film layer composition and simultaneously providing micro-embossing by using an emboss roll,
- wherein the micro-embossing comprises irregularities having a depth (a) provided at regular intervals (b), and the micro-embossing satisfies Expression 1 below:
- a≥⅓*b [Expression 1]
- (herein, 0.08 mm≤a≤0.8 mm and 0.2≤b≤2 mm), and
- wherein the tile-type decorative flooring material has a coefficient of friction of 40 to 56 tested by using a pendulum of BS-7976-2.
5 more elements
Dependencies are inferred from the claim text.