Flame-retardant wear-resistant polyurethane resin for leather
The invention relates to flame-retardant wear-resistant polyurethane resin for leather. The flame-retardant wear-resistant polyurethane resin is prepared from the following raw materials in parts by weight: 200 to 300 parts of polyester polyol; 100 to 140 parts of isocyanate; 35 to 50 parts of a cha...
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| creator | LIN JIAQI NI YANJIE HAN YUZHANG ZHOU LONGSHENG WANG YUANYOU |
| description | The invention relates to flame-retardant wear-resistant polyurethane resin for leather. The flame-retardant wear-resistant polyurethane resin is prepared from the following raw materials in parts by weight: 200 to 300 parts of polyester polyol; 100 to 140 parts of isocyanate; 35 to 50 parts of a chain extender; 1 to 4 parts of trifunctional organic silicon; 0.1 to 0.2 part of an antioxidant; and 900 to 1100 parts of DMF. The chain extender is nitrogen-containing phosphate dihydric alcohol and is prepared by the following steps: adding phosphite, an aldehyde compound and a nitrogen-containing compound into a reaction kettle, reacting at 75-90 DEG C to obtain the nitrogen-containing phosphate dihydric alcohol and water, and removing the water in the nitrogen-containing phosphate dihydric alcohol. The nitrogen-containing phosphate polyol is used as the chain extender, and is matched with the polyester polyol with a specific structure and a proper amount of trifunctional organic silicon, so that the flame-retarda |
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The flame-retardant wear-resistant polyurethane resin is prepared from the following raw materials in parts by weight: 200 to 300 parts of polyester polyol; 100 to 140 parts of isocyanate; 35 to 50 parts of a chain extender; 1 to 4 parts of trifunctional organic silicon; 0.1 to 0.2 part of an antioxidant; and 900 to 1100 parts of DMF. The chain extender is nitrogen-containing phosphate dihydric alcohol and is prepared by the following steps: adding phosphite, an aldehyde compound and a nitrogen-containing compound into a reaction kettle, reacting at 75-90 DEG C to obtain the nitrogen-containing phosphate dihydric alcohol and water, and removing the water in the nitrogen-containing phosphate dihydric alcohol. 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| subjects | CHEMISTRY COMPOSITIONS BASED THEREON FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR LAUNDERING MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS TEXTILES THEIR PREPARATION OR CHEMICAL WORKING-UP TREATMENT OF TEXTILES OR THE LIKE WALL, FLOOR OR LIKE COVERING MATERIALS, e.g. LINOLEUM,OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF AFIBROUS WEB COATED WITH A LAYER OF MACROMOLECULARMATERIAL |
| title | Flame-retardant wear-resistant polyurethane resin for leather |
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