PVC composite material, foam board, and flooring
AssigneeUnilin BV
InventorQinghua Fang
Life of this patent
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Abstract
A polyvinyl chloride polymer (PVC) composite material is described herein. The PVC composite material includes 40-60 parts by weight of PVC, 40-60 parts by weight of calcium carbonate, 0.2-0.6 parts by weight of composite foaming agent, 3-5 parts by weight of foam regulator, 2-4 parts by weight of toughener, 0.8-1.2 parts by weight of lubricant, and 2-3 parts by weight of stabilizer. Meanwhile, the present invention provides a foam board made of the PVC composite material and flooring. The resulting PVC products have a high-strength structure and a good foaming property, bring the comfort to feet as the resilient flooring does, have a satisfied sound reduction and can be easily installed as the hard flooring could.
Claims8
A flooring, comprising:
- a polyvinyl chloride polymer wear-resistance layer;
- a polyvinyl chloride polymer color film layer connected directly to the polyvinyl chloride polymer wear-resistance layer;
- a polyvinyl chloride polymer substrate layer connected directly to the polyvinyl chloride polymer color film layer;
- and
- a polyvinyl chloride polymer foam layer connected directly to the polyvinyl chloride polymer substrate layer, the polyvinyl chloride polymer foam layer being made by foaming of a polyvinyl chloride polymer composite material;
- an underlayer disposed at one surface of the polyvinyl chloride polymer foam layer opposite the polyvinyl chloride polymer substrate layer wherein the underlayer comprises a cork pad;
- wherein the polyvinyl chloride polymer color film layer is hot-pressed onto the polyvinyl chloride polymer substrate layer and the polyvinyl chloride polymer substrate layer is bonded to the polyvinyl chloride polymer foam layer;
- and
- wherein the polyvinyl chloride polymer composite material comprises:
- 40-60 parts by weight of polyvinyl chloride polymer;
- 40-60 parts by weight of calcium carbonate;
- 0.2-0.6 parts by weight of composite foaming agent;
- 3-5 parts by weight of foam regulator;
- 2-4 parts by weight of toughener;
- 0.8-1.2 parts by weight of lubricant;
- and
- 2-3 parts by weight of stabilizer,
- wherein the polyvinyl chloride polymer foam layer is free of plant fibers;
- wherein the polyvinyl chloride polymer foam layer has a density greater than 0.8 g/cm3;
- wherein the stabilizer comprises calcium stearate and zinc stearate in substantially equal amounts;
- wherein the polyvinyl chloride color film layer is in the form of a single layer.
Dependencies are inferred from the claim text.