12 Alipay 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. Color Ethylene From the viewpoint of environmental protection, it is desirable to use water alone. 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. — More concretely, there can be included a process comprising the step of reacting the polyol components with the polyisocyanate compound using a blowing machine such as an automatically mixing and injecting foaming machine or an automatically blending and injecting foaming machine to form a polyurethane foam, the temperature of the polyol components being previously usually adjusted to 40° C. or so using a tank. 60 ∘: no peeling of skin layer being observed; and. Hardness 2.5 The term “peeling of skin layer” means that the surface layer portion (skin portion of the polyurethane foam) is peeled, or a gap is formed between the skin portion and the body of the polyurethane foam. 5.0 1” manufactured by Kao Corporation; N,N,N′,N′-tetramethylpropylenediamine typically exemplified by trade name: “KAOLIZER No. x An object of the present invention is to provide a polyurethane foam for shoe soles having excellent appearance without any peeling of a skin layer or molding shrinkage in the average density of 0.15 to 0.5 g/cm3, which is made of a polyether polyurethane having excellent hydrolysis resistance. Strength 0.5 Peel of 1.3 22” manufactured by Kao Corporation; triethylamine; tributylamine; bis(dimethylaminoalkyl)piperazines; N,N,N′,N′-tetramethylethylenediamine; N,N-diethylbenzylamine; bis(N,N-diethylaminoalkyl)adipates; N,N,N′,N′-tetramethyl-1,3-butanediamine; N,N-dimethyl-β-phenylethylamine; 1,2-dimethylimidazole; 2-methylimidazole, and the like. — x ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Among those alkylene oxides, it is desirable to use propylene oxide alone, or a random copolymer or a block copolymer of a propylene oxide and other alkylene oxide, the main component (at least 50% by weight) of which is the propylene oxide. 0.5 The physical properties of the resulting polyurethane foam were evaluated by the following methods. the content of the polyol components is 80% by weight in the polymer-polyol. 380 When the polyoxytetramethylene glycol is used, mechanical characteristics are synergistically improved by a combined use with the polymer-polyol B, so that there can be prepared a polyurethane foam having excellent mechanical characteristics, which can be sufficiently employed for uses such as soles having a low density of 0.15 to 0.5 g/cm3 or so. Split China PU Chemical/PU Prepolymer/PU Raw Material for Safety Shoe Sole: Polyester Polyol and Isocyanate, Find details about China Polyurethane System for Footwear, Polyol Isocyanate for Shoe Sole from PU Chemical/PU Prepolymer/PU Raw Material for Safety Shoe Sole: Polyester Polyol and Isocyanate - Zhejiang Hengtaiyuan Polyurethane Co., Ltd. — — — ∘ Also, from the viewpoint of easy handling, it is desired that the molecular weight is at most 20,000, preferably at most 10,000. 7 PU Resin for Footwear, Find Details about PU System for Shoe Sole, Polyurethane Prepolymer from PU Resin for Footwear - Shanghai Huide Science & Technology Co., Ltd. We are one of the eminent Manufacturers and Suppliers of Polyurethane Pigments, PU Shoe Sole Pigment, Black Pigment, Release Lacquer for Synthetic Sole. — Polyurethane prepolymer For Shoe sole Medium to low hardness, Polyurethane prepolymer for shoe sole hd-4160 jf-1014 for self skinning for simulation toy, Professional Polyurethane Prepolymer For Wholesales, PU Casting PU castable Polyurethane Prepolymers, Korea TDI80 for flexible foam, polyurethane foams, prepolymers, elastomers TDI 80/20 toluene diisocyanate, Polyether Polyol and Toluene Diisocyanate (T-80) Synthesis of Polyether Polyurethane Prepolymer For Sealing Ring PU Roller, Sales Polyurethane prepolymers Quality assurance Prepolymer composite, Casting PU elastomer prepolymer for mining conveyor belt, castable pu prepolymer for shock absorption pad for shoes, Low Price Coating Polyurethane Prepolymer. § 371 of PCT International Application No. 5.0 Incidentally, the polyoxypropylene polyols can be prepared by mixing several polyoxyalkylene polyols as long as the molecular weight per one hydroxyl group, the content of oxyethylene group, and the ratio of the terminal primary hydroxyl group to the total terminal hydroxyl groups of the overall polyether-polyol A are within the above given ranges. x After the reaction of the starting material with the alkylene oxide, in order to accelerate the formation of a polyurethane foam, it is desired to carry out addition reaction of ethylene oxide to the resulting compound in a block form to give a polyoxypropylene polyol having primary hydroxyl group at its terminal (hereinafter referred to as “terminal primary hydroxyl group”). 20 styrene may be used alone. Glycol Custom Shoe Sole Rubber Sheet various color skidproof rubber ... applications. III Particles The results are shown in Table 1. 12.3 3.0 0.30 Blowing 6 61 The shoe sole components exhibit high tensile strength, elongation, resilience, and in addition have excellent tear strength, particularly 90° angle tear. 5.0 1.3 30 White It is desired that the content of the oxyethylene group in the polyoxypropylene polyols is at most 35% by weight from the viewpoint of water resistance, and that the content is at least 5% by weight from the viewpoint of the ratio of the terminal primary hydroxyl group to the total terminal hydroxyl groups. The liquid Polyurethane produced from the reaction can then be shaped into the required sole designs using injection moulding or pouring method. ∘ 59 According to the process B, the polymer-polyol B in which the fine polymer particles are uniformly dispersed in the polyether-polyol can be easily prepared. Example — — 2.0 — ∘ 0.5 The present invention is directed to a polyurethane foam for shoe soles having an average density of 0.15 to 0.5 g/cm3, prepared by reacting polyol components comprising: (A) a polyether-polyol A having two or more hydroxyl groups; (B) a polymer-polyol B comprising a polyether-polyol having two or more hydroxyl groups as a base material and fine polymer particles; and. When the polyol components are reacted with the polyisocyanate compound, it is desired that the proportion thereof is such that the isocyanate index is adjusted to 85 to 115, preferably 85 to 105, more preferably 95 to 105. It is desired that the molecular weight of the polyoxytetramethylene glycol is at least 1,000, preferably at least 1,400, from the aspect of effectiveness of the oxytetramethylene chain as a soft segment, and that the upper limit of the molecular weight is at most 3,000, preferably 2,300, so that the polyoxytetramethylene glycol can be liquid at the operable temperature. Medium and Low Hardness, Medium and High Density PU Resin for Shoe Sole with The Upper for Men and Women Zg-P-5005/Zg-I-5002. — 1688.com 1.3 — The company`s main products are polyester polyols, polyurethane resins for artificial leather, Polyurethane System For Shoe Sole, polyurethane adhesives, polyurethane hot melt adhesives, water-based polyurethane resins, solvent-free polyurethane resins and polyurethane elastomers, covering a wide range of global civilian, industrial, and automotive applications Manufacturing, medical … ), 2) Polyether-Polyol II: Polyoxypropylene triol having a molecular weight of 6,000, prepared by sequentially adding propylene oxide and ethylene oxide to glycerol (content of oxyethylene group: 20% by weight; ratio of terminal primary hydroxyl group to total terminal hydroxyl groups: 88%), 3) Polyether-Polyol III: Polyoxypropylene glycol having a polyoxyethylene terminal and a molecular weight of 4,000, prepared by sequentially adding propylene oxide and ethylene oxide to dipropylene glycol (content of oxyethylene group: 20% by weight; ratio of terminal primary hydroxyl group to total terminal hydroxyl groups: 91%). 22 ~0.25 45~55 3 -4 Molded shoe sole physical properties Items Molded Density (g/cm 3 ) Hardness (Shore A ) Tensile strength (MPa) Elongation (%) Tear Strength (kN/m) Ross Flexing (room temperature) Physical properties 0. 11.4 — The split tear was measured by a method according to ASTM D-3574, where a resin was replaced with the polyurethane foam. 80 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. Privacy Policy 50 Specifically, as shown in FIG. No. 0.30 White | Country Search 50 White The chain extender includes polyhydric alcohols such as ethylene glycol, diethylene glycol, propylene glycol, dipropylene glycol, 1,4-butanediol, 1,6-hexanediol, neopentyl glycol, glycerol, trimethylolpropane, triethanolamine and alkylene oxide adducts of bisphenol A; polyamines such as diethyltoluenediamine, chlorodiaminobenzene, ethylenediamine and 1,6-hexanediamine; and the like. 50 320 ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:OKUBO, MAKOTO;ISHIKAWA, ATSUSHI;KITAGAWA, HIROSHI;REEL/FRAME:010875/0624, Free format text: 2.4 5 Polyurethane System For Shoe Sole; PU Resin For Synthetic Leather; Polyester Polyol; Polyurethane Adhesive; PU Resin For Inks; Casting Polyurethane Prepolymer; … 13.2 The particle diameter of the fine polymer particles is not limited to specified ones. 3 Also, from the viewpoints of improving uniform dispersion stability of the fine polymer particles, operability in the aspect of viscosity, and moldability of the polyurethane foam, it is desired that the content of the fine polymer particles is at most 50% by weight, preferably at most 45% by weight. (Parts by with a polyisocyanate compound in the presence of a blowing agent and a catalyst, wherein the amount of the fine polymer particles is 10 to 30 parts by weight, based on 100 parts by weight of the total amount of the polyether-polyol A and the polymer-polyol B. 0.40 Assignors: ISHIKAWA, ATSUSHI, KITAGAWA, HIROSHI, OKUBO, MAKOTO, https://patents.darts-ip.com/?family=18472643&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=US6329441(B1). (g/cm3) 10” manufactured by Kao Corporation; N,N-dimethylbenzylamine typically exemplified by trade name: “KAOLIZER No. 2.3 The systems fall in two categories. 8” manufactured by Kao Corporation; N,N-dimethylcyclohexylamine typically exemplified by trade name: “KAOLIZER No. According to the present invention, there can be provided a polyurethane foam for shoe soles having acceptable appearance without having peeling of skin layers or molding shrinkage in the average density of 0.15 to 0.5 g/cm3. — PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362. The styrene content may be 100% by weight, i.e. 380 Low density polyurethane foams and their use in soils of shoes. Ex. Polyurethane Prepolymer For Shoe Sole, Poly Iso For Shoe Sole, Polyurethane And Isocyanate For Shoe Sole products from Zhejiang HengTaiYuan P.U Co., Ltd. In order to impart high hardness to the resulting polyurethane foam, it is desired that the content of the fine polymer particles in the polymer-polyol B is at least 15% by weight, preferably at least 20% by weight, more preferably at least 30% by weight. 14.2 70 0.30 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.