The elongation at break was measured by a method according to JIS K-6301, where a resin was replaced with the polyurethane foam. 3.5 White II 0.30 x 61 Those monomers can be used alone or in admixture thereof. PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362. On the other hand, it is desired that the weight ratio of the polyether-polyol A to the polymer-polyol B is at least 20/80, preferably at least 30/70, from the viewpoints of decreasing the viscosity of the polyol components and improving the moldability of the polyurethane foam. 3 20 100 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. * Any questions Pls contact: Eli Chan. 371 of PCT International Application No. 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. This methylenediphenyl diisocyanate-modified prepolymer was prepared by adding dropwise a mixture of 35 parts by weight of Polyol III described below and 5 parts by weight of dipropylene glycol to 60 parts by weight of methylenediphenyl diisocyanate, and the resulting mixture was heated with stirring at a temperature of 50 to 60 C. for two hours. we manufacture polyurethane raw material for shoe sole & waterproofing, flooring such as isocyanate prepolymer, polyol mixture, catalyst, hardner,releaing agent.Please, contact us 2.3 P o l y e s t e r / T D I System - prepolymer Hardness from Shore A70-Shore D80. The polymer-polyol B comprises a polyether-polyol having two or more hydroxyl groups as a base material. 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. 80 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). When preparing a white polyurethane foam, particularly in a case of using a polymer-polyol B comprising an acrylonitrile-styrene copolymer, the whiteness of the polyurethane foam is greatly affected by a styrene content. The polyurethane foam for shoe soles according to claim, 5. A wide variety of polyurethane prepolymer for shoe sole options are available to you, such The polyurethane foam for shoe soles according to claim, 3. 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. The hardness of the polyurethane foam was measured by an Asker C hardness meter. On the other hand, it can be seen that peeling of skin layers and foam shrinkage are generated in the polyurethane foams obtained in Comparative Examples 1 and 2, thereby making it undesirable for practical purposes, since the components and amounts of the polyol components are different from those of Examples 1 to 7. 60 0.5 7.0 White Fine Polymer HS Code. The content of the resulting fine particles is 20% by weight, i.e. 2.5 3.0 The polyether-polyol having two or more hydroxyl groups which is used in the polymer-polyol B can be a polyoxypropylene polyol which is used as the polyether-polyol A. 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. The modified product includes prepolymer modified products which are reaction products with a polyol, nurate modified products, urea modified products, carbodiimide modified products, arophanate modified products, burette modified products, and the like. 50 6 20 0.5 50 White. Low density polyurethane microcellular elastomer, Adhesive containing high solid copolymer polyol polyurethane prepolymer, A kind of preparation method of freezer antiskid polyurethane solid tyre, Polyurethane prepn - from polyisocyanates, polyether-, polyesterpolyols and transesterified polyols, Reaction system for preparing microcellular elastomers, Preparation of polyoxyalkylene polyols, polymer polyols and flexible polyurethane foams, Polyurethane elastomer and foam exhibiting improved abrasion resistance, Microcellular elastomers with improved processability and properties, Novel system for the production of polyurethanes, Preparation of microcellular polyurethane elastomers, Process for the production of cellular molded plastics, Volatile silicone oil-blown integral skin foam, Process of making an integral skin polyurethane article, Process for the production of elastic polyurethane moldings with a compact surface and cellular core, Hybrid systems consisting of foamed thermoplastic elastomers and polyurethanes, Polyurethane-based polymer expandable particle, Isocyanate composition and process for making flexible foams therefrom, Process to manufacture flexible polyurethane foams, Method for producing polyurethane foam without using inert blowing agent, Elastic polyurethane foam and process for its production, Method for producing flexible polyurethane foam, Polyurethane elastomers exhibiting improved demold, green strength, and water absorption, and haze-free polyols suitable for their preparation, Process for the preparation of cold setting flexible polyurethane molded foams, Isocyanate-terminated prepolymer and polyurethane foam produced therefrom, Method for producing low resilience flexible polyurethane foam, Method for producing soft polyurethane foam, Process for producing elastic polyurethane mouldings with compact surfaces and cellular cores, Carbon dioxide foamed flexible low density microcellular elastomers for the manufacture of shoe components. 2.2 The results are shown in Table 1. - 1.3 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. Elongation No. 1 manufactured by Kao Corporation; N,N,N,N-tetramethylpropylenediamine typically exemplified by trade name: KAOLIZER No. Polymer-Polyol 330 ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:OKUBO, MAKOTO;ISHIKAWA, ATSUSHI;KITAGAWA, HIROSHI;REEL/FRAME:010875/0624, Free format text: 10.5 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. 8 x 12.1 The mixing ratio of the polyol components and the polyisocyanate compound is determined from the free foam state in the foam reaction, and the isocyanate index was 90 to 100 or so.