Floor wax resistant agent, method for producing wood based panel by adding the same thereto, and the wood based panel

摘要

There is provided a floor wax resistant agent having excellent floor wax resistance. It has been found that a wax and a petroleum resin are used in combination, as a floor wax resistant agent, in predetermined proportions; and that a specific petroleum resin is contained in a predetermined proportion, thereby providing not only water repellency but also stability to organic components such as a floor wax. Specifically, there is provided a floor wax resistant agent to be added to a material in a wood based panel produced by heating and pressurizing the material for improving the floor wax resistance of the wood based panel. The floor wax resistant agent comprises 70% to 90% by weight of a wax containing 10% by mass or less of an oil component and 30% to 10% by weight of a petroleum resin, in 100% by weight of the floor wax resistant agent. The petroleum resin is composed of a copolymer of a C5 fraction and a C9 fraction, a combination of a C5 fraction and a C9 fraction, or combined use of the copolymer and the combination, and comprises, relative to the amount of the amount of the entire petroleum resin: 65% to 20% by weight of the C5 fraction and 35% to 80% by weight of the C9 fraction.