No. 0.30 Also, the amount of the fine polymer particles is at least 10 parts by weight in order to avoid the shrinkage of a polyurethane foam, and at most 30 parts by weight, preferably at most 25 parts by weight in order to improve the moldability of a polyurethane foam, based on 100 parts by weight of the total amount of the polyether-polyol A and the polymer-polyol B. 3 12 PU Resin for Shoe Sole. (Parts by Example The upper limit of the styrene content in the fine polymer particles contained in the polymer-polyol B is not limited to specified ones. Specifically, as shown in FIG. In cases where two or more polyether-polyols having two or more hydroxyl groups are used in combination, it is desired that the average hydroxyl groups per one molecule of the polyether-polyol is from 2.5 to 4.0. — The weight of the polyurethane foam of 100 mm×300 mm×10 mm was measured, and the weight was divided by its volume, i.e. Fine Polymer 0.5 — As other additives, silicone cell regulators, pigments, antioxidants, and yellow coloration preventives can be used in proper amounts. In the prepolymer, there may be included a reaction product of methylenediphenyl diisocyanate or a modified product thereof with a chain extender. Low-density to compact polyurethane systems are utilised for mid-soles and outer soles. 380 0.30 ∘ 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 … It is desired that the particle diameter of the fine polymer particles is at most 30 μm, preferably at most 10 μm, from the viewpoint of avoiding poor dispersibility due to sedimentation, and that the particle diameter is at least 0.1 μm, preferably at least 0.5 μm, from the viewpoint of avoiding difficulty in handling due to increase in viscosity. 7 The content of the resulting fine particles is 40% by weight, i.e. 1-Introduction. (g/cm3) Within the shoe sector, polyurethanes are found in a wide range of footwear types. — 1.5 3 Average 0.40 From the viewpoint of improvement in the reaction rate, a catalyst is used. — Also, from the viewpoint of easy handling, it is desired that the molecular weight is at most 20,000, preferably at most 10,000. 5.0 320 However, the polyether polyurethane has poor mechanical properties such as abrasion resistance and flexural strength at ambient temperature, and there are some defects in that peeling of a skin layer and molding shrinkage are likely to take place during foaming. Zhejiang HengTaiYuan P.U Co., Ltd., China Experts in Manufacturing and Exporting Polyurethane Prepolymer For Shoe Sole, Poly Iso For Shoe Sole, Polyurethane And Isocyanate For Shoe Sole From the viewpoint of effectively functioning the oxypropylene chain as a soft segment, it is desired that the polyoxypropylene polyol has a molecular weight of at least 1,500, preferably at least 1,800, per one hydroxyl group. 6 3” manufactured by Kao Corporation; trimethylaminoethylpiperazine typically exemplified by trade name: “KAOLIZER No. — 38 ~0. | 3.0 6.5 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. Split I 2.3 1 at Break 0.5 Basic Info. 3) Polymer-Polyol III: Polymer-polyol [color: yellowish white] composed of fine particles prepared by polymerizing acrylonitrile monomer and styrene monomer in a ratio of acrylonitrile monomer/styrene monomer of 75% by weight/25% 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. The starting material includes polyhydric alcohols, polyhydric phenols, polyamines, alkanolamines, and the like. — The polyoxyalkylene glycol can be prepared in the same manner as the process for preparing the aforementioned polyoxypropylene polyol. Examples of the catalyst other than the tertiary amines include organometal compounds such as dibutyltin dilaurate, stannous oleate, cobalt naphthenate, and lead naphthenate. 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. 2.5 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. They are used in street shoes and they are very resistant to hydrolysis. — ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). We are one of the eminent Manufacturers and Suppliers of Polyurethane Pigments, PU Shoe Sole Pigment, Black Pigment, Release Lacquer for Synthetic Sole. 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. — Industrial pigments and solvents are generally used for industrial applications, as well as in arts, as … 59 The polyisocyanate compound includes aromatic polyisocyanates, alicyclic polyisocyanates and aliphatic polyisocyanates, each having two or more isocyanate groups in its molecule; mixtures thereof; modified polyisocyanates prepared by modifying the polyisocyanate compound, and the like. 20 As to the catalyst, a tertiary amine can be mainly used. Blend Polyol for Polyurethane Pipe Insulation Resin Material 20” manufactured by Kao Corporation; N-methylmorpholine typically exemplified by trade name: “KAOLIZER No. City/Province. Density Skin 2.3 5.0 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. Ex. 410 1.3 Among them, the aromatic polyisocyanates, excluding polymers such as polymethylenepolyphenylene diisocyanate, and modified products thereof are desirable. — 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. ∘ 1, a polyurethane foam of 100 mm×300 mm×10 mm was cut to give a test piece 1 of 25.4 mm×150 mm×10 mm, and the test piece 1 was cut at the central portion of its thickness (10 mm) in a horizontal direction from its end in the length 2 of 50 mm. 5 12.5 Polyether polyurethane has excellent antibacterial property and excellent flexural strength at low temperatures, and particularly excellent hydrolysis resistance, as compared to polyester polyurethane. The systems fall in two categories. Layer To meet the high demands and rapidly changing trends in the footwear market, we focus our innovation efforts on sustainable solutions, automation, customization and smart manufacturing. 50 The polyurethane foam for shoe soles according to claim, 3. The styrene content may be 100% by weight, i.e. 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. Example 58 Particularly, it is desirable that the styrene content is at least 50% by weight, because the whiteness of the polymer-polyol B is highly improved. Prepolymer Polyurethane Resin for injection shoes casting shoe sole, High Standard Quality Polyurethane Prepolymer / PU prepolymer materials / Casting PU system for shoe uppers. 8.0 From the viewpoint of the dispersion stability of the fine polymer particles, it is desired that the molecular weight is at least 1,800, preferably at least 3,000. White. Particles 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. Catalyst 1.3 Polyether-Polyol The resulting polyurethane foam was observed with naked eyes. ∘ 0.5 — 7.0 No. 2 2.4 11.4 HS Code. - (Asker 0.5 12.0 380 ∘ 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”).