2.3 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. a-Polyether systems, which result in soles with excellent surface finish. â 370 Please feel free to send inquiry to us for more details of this product or other products in our showroom. 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. HS Code. 1 is a schematic view explaining a method for preparing a test piece of a polyurethane foam which is used for measuring split tear. Onetouch 2.3 Lazada, Browse Alphabetically: 0.5 III 28 7 The starting material includes ethylene glycol, diethylene glycol, propylene glycol, dipropylene glycol, neopentyl glycol, 1,4-butanediol, 1,6-hexanediol, glycerol, trimethylolpropane, pentaerythritol, diglycerol, dextrose, sucrose, bisphenol A, ethylenediamine, and modified products thereof, and the like. 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 35Â° to 45Â° C., and the polyisocyanate compound was charged in another tank, and the temperature inside this tank was similarly adjusted to a temperature of 35Â° to 45Â° 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 mmÃ300 mmÃ10 mm. 12.0 It is desired that the particle diameter of the fine polymer particles is at most 30 Î¼m, preferably at most 10 Î¼m, from the viewpoint of avoiding poor dispersibility due to sedimentation, and that the particle diameter is at least 0.1 Î¼m, preferably at least 0.5 Î¼m, from the viewpoint of avoiding difficulty in handling due to increase in viscosity. 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. x The styrene content may be 100% by weight, i.e. â Intellectual Property Protection 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. 5 30 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. 62 2 2.7 2.2 1.3 60 (KN/m) 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. 50 11.4 2.5 ), 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%). 50 From the viewpoint of environmental protection, it is desirable to use water alone. PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362. 50 Ethylene Prepolymer Polyurethane Resin for injection shoes casting shoe sole, US $ 1.83 - 2.4 / Kilogram, POLYURETHANE FOAM, Zhejiang, China, Synthetic Resin And Plastics.Source from Zhejiang Hexin Science And Technology Co., Ltd. on Alibaba.com. â 0.30 I 8.0 All rights reserved. at Break 1.9 Accordingly, there is a necessity to increase the amount of the chain extender to give a polyurethane foam having a desired hardness, thereby resulting in a decrease in the elongation at break. Content of 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. Although best known for sports and trekking shoes and boots, they are also extensively used for business and fashion shoe soles, as well as high-quality safety shoes. â The polyol components were prepared in a blowing machine by adding and stirring 0.5 parts by weight of TEDA as a catalyst, and given amounts of the chain extender and water, per 100 parts by weight of the total amount of the polyether-polyol A and the polymer-polyol B. Peel of The polyurethane foam for shoe soles according to claim, 5. â 58 The process for preparing a polyurethane foam of the present invention comprises the steps of mixing and stirring the polyol components and the polyisocyanate component, the polyol components being previously mixed with a catalyst, a blowing agent and other additives in a molding machine; and pouring the resulting mixture into a mold to form a polyurethane foam. 70 at Break Tear 30 â - â 0.5 1.3 Specifically, as shown in FIG. Microcellular polyurethane elastomer shoe sole components having exceptional physical properties may be prepared from isocyanate-terminated prepolymers derived from polyoxypropylene diols having a molecular weight of from about 2000 Da to 8000 Da, an unsaturation less than about 0.02 meq/g, and a random oxyethylene content of from about 5 to about 15 weight percent. 2â manufactured by Kao Corporation; N,N,Nâ²,Nâ²,Nâ³-pentamethyldiethylenetriamine typically exemplified by trade name: âKAOLIZER No. â 2) Polymer-Polyol II: 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 50% by weight/50% by weight in polyoxypropylene triol having a polyoxyethylene terminal and a molecular weight of 3,000 (content of oxyethylene group: 20% by weight; ratio of terminal primary hydroxyl group to total terminal hydroxyl groups: 71%), which was prepared by sequentially adding propylene oxide and ethylene oxide to glycerol. As a chain extender, ethylene glycol was used, and the amount of ethylene glycol was adjusted to that shown in Table 1 to give a polyurethane foam having a desired hardness. (g/cm3) Fine Polymer 2.5 Properties of Polyurethane Foam (Water) 59 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. Strength 62 6 â The compounds shown in Table 1 were used as the polyether-polyol A and the polymer-polyol B for the polyol components, and mixed together in a ratio shown in Table 1. â Those starting materials can be used alone or in admixture thereof. â The polyurethane shoe sole according to claim 9, which is an insert sole. POLYURETHANE PREPOLYMER for platform and lady's sole, Hot Products Polyurethane Prepolymer For Shoe Sole Made In China, Polyurethane prepolymer Component B and A for Casual Shoes Insole Production, polyurethane prepolymer for injection shoe. 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. 2.3 Layer 2.3 (A) a polyether-polyol A having two or more hydroxyl groups, selected from the group consisting of polyoxypropylene polyols prepared by adding ethylene oxide to the terminal hydroxyl group of a polyoxypropylene polyol and a polyoxytetramethylene glycol prepared by ring-opening polymerization of tetrahydrofuran; 2. KAO CORPORATION, JAPAN, Free format text: â 21â manufactured by Kao Corporation; N-ethylmorpholine typically exemplified by trade name: âKAOLIZER No. 20 The upper limit of the styrene content in the fine polymer particles contained in the polymer-polyol B is not limited to specified ones. - 5.0 The polymer-polyol B comprises a polyether-polyol having two or more hydroxyl groups as a base material. â0 â 0.5 1.0 50 White | The process according to claim 1 or 2, wherein the shoe sole has a hardness of 15 to 75 Asker C, measured to JIS K 7312. POLYURETHANE PREPOLYMER (FOR SHOE SOLE) (INDUSTRIAL RAW MATERIAL FOR BULK CONSUMPTION) CONTACT US: Nina Mob:+86-18767692555 Email:firstname.lastname@example.org ：email@example.com Whatsapp:+86-18767692555 White 20 Characteristics: Mixing Temperature 30 ~ 40℃ , Curing Temperature 80~90℃ , Demould time 8~ 10 min (adjustable), the Hardness of finished product could be adjusted by changing the material s ratio of component A+C/B . Hardness Strength â: no foam shrinkage being observed; and. The polymer-polyol B in which the fine polymer particles are dispersed in the polyether-polyol can be prepared, for instance, by a process comprising mixing fine polymer particles prepared by polymerizing a polymerizable unsaturated group-containing monomer with the polyether polyol and dispersing the fine polymer particles in the polyether-polyol (hereinafter referred to as âprocess Aâ); a process comprising polymerizing a polymerizable unsaturated group-containing monomer in a polyether-polyol to disperse the fine polymer particles made of the polymerizable unsaturated group-containing monomer in the polyether-polyol (hereinafter referred to as âprocess Bâ), and the like. 1.3 Polyol Isocyanate PU Chemical for Making Shoe Sole. 2.4 Polyurethane System For Shoe Sole; PU Resin For Synthetic Leather; Polyester Polyol; Polyurethane Adhesive; PU Resin For Inks; Casting Polyurethane Prepolymer; … 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. â I 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. Polyurethane Prepolymer for Shoe Material Zh5005/Zh5002, Find Details about PU Chemical for Footwear /Sandal Shoe Sole, Polyurethane for Shoe Sole from Polyurethane Prepolymer for Shoe Material Zh5005/Zh5002 - Zhejiang Hengtaiyuan Polyurethane Co., Ltd. â China polyurethane prepolymer for footwear - find detail polyurethane footwear, pu footwear from xuchuan chemical (suzhou) co., ltd. Examples of the catalyst other than the tertiary amines include organometal compounds such as dibutyltin dilaurate, stannous oleate, cobalt naphthenate, and lead naphthenate. This application is the national phase under 35 U.S.C. 5.0 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. 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