Pvc composite material, foam board, and flooring
AssigneeUnilin BV
InventorQinghua FANG
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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.
Claims13
A method for manufacturing a flooring, said flooring comprising a board as a substrate, and a PVC layer adhered above said substrate, wherein said PVC layer comprises a PVC color film layer and a PVC wear-resistance layer covering said PVC color film layer;
- said method comprising:
- providing a mixture comprising 40 parts by weight of polyvinyl chloride polymer, at least 40 parts by weight of calcium carbonate, and one or more of a foaming agent, a foam regulator, a toughener, a lubricant and a stabilizer;
- providing said board at least by extruding said mixture by means of an extruder and conveying said mixture into a mold for shaping;
- bonding said PVC color film layer to said board and hot pressing said wear resistance layer to said PVC color film layer;
- providing said substrate with end buckles and side buckles allowing connection to adjacent floorings;
- wherein said calcium carbonate comprises mechanically prepared calcium carbonate.
A method for manufacturing a flooring product, said flooring product comprising a board, a PVC color film layer and a PVC wear-resistance layer, wherein said method comprises providing a mixture comprising 40 parts by weight of polyvinyl chloride polymer, at least 40 parts by weight of calcium carbonate, and one or more of a foaming agent, a foam regulator, a toughener, a lubricant and a stabilizer;
- providing said board at least by extruding said mixture by means of an extruder and conveying said mixture into a mold for shaping;
- bonding said PVC color film layer to said board and hot pressing said wear resistance layer to said PVC color film layer;
- wherein said calcium carbonate comprises calcium carbonate having a sedimentation volume of 2.8 ml/g or less.
Dependencies are inferred from the claim text.