39095000. 60 The polymerizable unsaturated group-containing monomer includes styrene; acrylonitrile; alkyl methacrylates having an alkyl group of 1 to 4 carbon atoms, such as methyl methacrylate, ethyl methacrylate and butyl methacrylate; glycidyl methacrylate; alkyl acrylates having an alkyl group of 1 to 4 carbon atoms, such as methyl acrylate, ethyl acrylate and butyl acrylate; glycidyl acrylate, and the like. 12.0 Glycol x 3 28 The polyurethane foam for shoe soles according to claim, 4. ∘ The polyoxypropylene polyols which can be used in polymer-polyol B may be prepared by mixing several polyoxyalkylene polyols as long as the average number of functional groups, the average molecular weight, the content of the oxyethylene group, and the ratio of the terminal primary hydroxyl group to the total terminal hydroxyl groups of the mixed polyoxyalkylene polyol are within the ranges described above. No. 3 White The polyurethane shoe sole according to claim 9, which is an insert sole. Examples of the catalyst other than the tertiary amines include organometal compounds such as dibutyltin dilaurate, stannous oleate, cobalt naphthenate, and lead naphthenate. 50 The results are shown in Table 1. The polyoxytetramethylene glycol prepared by ring-opening polymerization of tetrahydrofuran, having a molecular weight of at least 1,000, possesses properties for improving mechanical characteristics owing to its molecular structure, and can be desirably used in the present invention. 1” manufactured by Kao Corporation; N,N,N′,N′-tetramethylpropylenediamine typically exemplified by trade name: “KAOLIZER No. The proportion of the polyether-polyol A to the polymer-polyol B varies depending upon the content of the fine polymer particles in the polymer-polyol B, constituents of the fine polymer particles, and the like. — 60 — It is particularly desirable to use polyoxypropylene triols, the starting material of which is only a tri-functional hydroxyl group-containing compound such as glycerol or trimethylolpropane, or a monomer mixture of which main component (at least 50% by weight) is the tri-functional hydroxyl group-containing compound. The particle diameter of the fine polymer particles is not limited to specified ones. 50 1) Polymer-Polyol I: Polymer-polyol [color: white] composed of fine particles prepared by polymerizing acrylonitrile monomer and styrene monomer in a ratio of acrylonitrile monomer/styrene monomer of 30% by weight/70% by weight in polyoxypropylene triol (content of oxyethylene group: 20% by weight; ratio of terminal primary hydroxyl group to total terminal hydroxyl groups: 71%) having a polyoxyethylene terminal and a molecular weight of 3,000, which was prepared by sequentially adding propylene oxide and ethylene oxide to glycerol. The shoe sole components exhibit high tensile strength, elongation, resilience, and in addition have excellent tear strength, particularly 90° angle tear. 12.1 How is PU Sole Made? A process for producing a polyurethane shoe sole having an article density of 100 to 350 g/L and being made from an organic polyisocyanate, a polyol, a blowing agent consisting of water, and optionally a crosslinking and/or chain-extending agent, a catalyst, and other auxiliaries and/or additives. ∘ The polyoxypropylene polyol can be prepared by subjecting an alkylene oxide to ring-opening addition reaction to a compound having at least two active hydrogen atoms, which is a starting material, and adding ethylene oxide to the molecular terminal of the resulting compound in a block form. The polyurethane foam for shoe soles according to claim, 5. PU Chemical/PU Prepolymer/PU Raw Material for Safety Shoe Sole: Polyester Polyol and Isocyanate. Polyurethane Foam for Shoes We are the leading Manufacture & exporters Creating a niche of Polyurethane Foam for Shoes such as Polyurethane Foam for Shoe Midsole, Polyurethane Foam for Sports Shoes, Polyurethane Foam for Shoe Bottom and Polyurethane Foam for Shoe Upper at its best, with utmost quality. 58 When the process B is employed, as a method for polymerizing a polymerizable unsaturated group-containing monomer in a polyether-polyol having two or more hydroxyl groups, there can be used a known method, such as a method comprising polymerizing a polymerizable unsaturated group-containing monomer in a polyether-polyol having two or more hydroxyl groups in the presence of a dispersion stabilizer and a radical polymerization initiator. The physical properties of the resulting polyurethane foam were evaluated by the following methods. — 320 The present invention relates to a polyurethane foam for shoe soles, which can be desirably used, for instance, for shoe soles for sport shoes, particularly for low-density soles. 2.3 ∘ The polyol components shown in Table 1 were charged in one of two tanks for a pouring-type low-pressure foaming machine, and the temperature inside this tank was adjusted to a temperature of 35° to 45° C., and the polyisocyanate compound was charged in another tank, and the temperature inside this tank was similarly adjusted to a temperature of 35° to 45° C. The polyol components and the polyisocyante compound were mixed with stirring using a foam machine, and the resulting mixture was poured into a mold to foam to give a polyurethane foam of 100 mm×300 mm×10 mm. White When the styrene content in the fine polymer particles contained in the polymer-polyol B is at least 40% by weight, the white polyurethane foam attains to a usable level. 2.0 0.30 Composition of Starting Materials (Parts by Weight) 370 — 0.5 1 0.30 0.30 Content of PU RESIN FOR ARTIFICIAL LEATHER, POLYURETHANE PREPOLYMER FOR SHOE SOLE, POLYESTER POLYOL, TPU, PU ADHESIVE, WATER BASE PU RESIN, NON-SOLVENT. 0.30 Since the polyoxypropylene glycol has a long oxyalkylene chain, it effectively functions as a soft segment in the polyurethane foam, thereby imparting excellent elongation properties and flexural properties to a resulting polyurethane foam.

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