Patent ID: 9527975
Filing Date: 2016-12-27
CPC Classification: B32B,C08J,E04F,Y10T

Claim Text:
1. A flooring, comprising: a polyvinyl chloride polymer layer; and a polyvinyl chloride polymer foam layer, the polyvinyl chloride polymer foam layer being made by foaming of a polyvinyl chloride polymer composite material, the polyvinyl chloride polymer layer being bonded on the surface of the polyvinyl chloride polymer foam layer, wherein the polyvinyl chloride polymer composite material comprises: 40-60 parts by weight of polyvinyl chloride polymer; 40-60 parts by weight of light calcium carbonate; 0.8-1.2 parts by weight of composite foaming agent comprising an inorganic foaming agent and an organic 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 1.5-2.5 parts by weight of stabilizer; wherein the ratio of the inorganic foaming agent to the organic foaming agent by weight in the composite foaming agent is ½-1, and wherein the polyvinyl chloride polymer foam layer is free of plant fibers.