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Halogen-free flameproof polyurethane resin for reflecting material

A technology of polyurethane resin and reflective material, which is used in textile decoration, textile and papermaking, fiber processing, etc. High temperature water washing and dry cleaning resistance, etc., to achieve the effect of excellent film formation and improved dispersion performance

Active Publication Date: 2010-07-21
南京夜视丽精细化工有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] What the present invention aims to solve is that the existing reflective material made of polyurethane does not have flame-retardant properties, and when a certain amount of flame-retardant material is added to the polyurethane raw material, it will affect the reflective material resin and reflective body (glass). microbeads), the return performance of reflective materials, water washability, high temperature water washing resistance and dry cleaning resistance, and provide a halogen-free flame-retardant polyurethane resin for reflective materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Embodiment 1 (preparation of branched chain type polyester polyol)

[0049] 1-1. Add 1.35mol of phthalic anhydride, 0.8mol of adipic acid, 0.5mol of isophthalic acid, 0.5mol of succinic acid, 2.43mol of 1,2-propanediol, 1.32mol of diethylene glycol, and neopentyl glycol 0.2mol, glycerin 0.11mol, trimethylolpropane 0.21mol, add catalyst zinc acetate 0.032g, organotin 0.03g, adopt melt vacuum polycondensation to prepare branched chain polyol, the yield is about 90-95%, its hydroxyl The value is 32.0 mgKOH / g, and the acid value is 1.1 mgKOH / g.

[0050] 1-2. Add 1.35 mol of phthalic anhydride, 1 mol of adipic acid, 0.4 mol of isophthalic acid, 0.3 mol of terephthalic acid, 0.1 mol of sebacic acid, 2.43 mol of 1,2-propanediol, and 1.32 mol of diethylene glycol mol, ethylene glycol 0.2mol, glycerin 0.11mol, trimethylolpropane 0.21mol, add catalyst zinc acetate 0.032g cobalt acetate 0.006g, organotin 0.03g, adopt melt vacuum polycondensation to make branched chain polyol, yie...

Embodiment 2

[0052] Embodiment 2 (preparation of linear polyester polyol)

[0053] 2-1. Mix 0.6mol of adipic acid, 0.2mol of terephthalic acid, 0.2mol of sebacic acid, 0.6mol of oxalic acid, 0.3mol of 1,2-propanediol, 0.5mol of neopentyl glycol, and 1,4-butanediol The alcohol is 0.1mol, and the linear polyol is obtained by melt vacuum polycondensation, the yield is about 92-97%, the hydroxyl value is 20mgKOH / g, and the acid value is 0.4mgKOH / g.

[0054] 2-2. Put 0.8mol of adipic acid, 0.2mol of terephthalic acid, 0.6mol of oxalic acid, 0.6mol of diethylene glycol, 0.3mol of neopentyl glycol, and 0.1mol of 1,4-butanediol in a molten vacuum Polycondensation produces linear polyol with a yield of about 92-97%, its hydroxyl value is 22 mgKOH / g, and its acid value is 0.6 mgKOH / g.

[0055] 2-3. Add 0.7mol adipic acid, 0.2mol isophthalic acid, 0.5mol oxalic acid, 0.2mol sebacic acid, 0.6mol diethylene glycol, 0.3mol neopentyl glycol, 1,4-butanediol 0.1mol, the linear polyol is obtained by melti...

Embodiment 3

[0056] Embodiment 3 (preparation of hydroxyl-terminated polyurethane polyol)

[0057] 3-1. Put 100g of branched-chain polyester polyol into the kettle, add 100g of ethyl acetate, put in 10g of toluene diisocyanate, control the reaction temperature between 60-90°C, and react for 2-3 hours; put in linear polyol 73g of ester polyol, 83g of toluene, control the reaction temperature between 80-100°C, and react for 3-4 hours to obtain a hydroxyl-terminated polyurethane polyol with a solid content of 50% and a hydroxyl value of 5-30mgKOH / g, with a yield of 98 ~99.5%.

[0058] 3-2. Put 80g of branched-chain polyester polyol and 20g of linear polyester polyol into the kettle, add 100g of ethyl acetate, put in 12g of toluene diisocyanate, control the reaction temperature between 60-90°C, and react 2 ~3 hours; put in 85g of linear polyester polyol, 37g of ethyl acetate, and 65g of toluene, control the reaction temperature between 80~100°C, and react for 3~4 hours to obtain a solid conte...

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Abstract

The invention relates to a halogen-free flame-retardant polyurethane resin for reflection materials, which comprises two components, namely halogen-free flame-retardant hydroxyl-terminated polyurethane polylol and a curing agent, wherein the two components exist independently. The halogen-free flame-retardant hydroxyl-terminated polyurethane polylol is formed by compounding the following substances in weight percentage: 40 to 55 percent of hydroxyl-terminated polyurethane polylol, 5 to 30 percent of silane flame retardant, 1 to 20 percent of phosphorus-nitrogen flame retardant, 1 to 10 percent of inorganic flame retardant, 0.5 to 10 percent of dispersant and 15 to 25 percent of solvent. The curing agent is formed by compounding the following substances in weight percentage: 45 to 60 percent of toluene diisocyanate, 10 to 30 percent of trimethylol propane, 3 to 10 percent of linear polyester polylol and 15 to 30 percent of solvent. When the resin is used, the halogen-free flame-retardant hydroxyl-terminated polyurethane polylol and the curing agent are compounded in the weight ratio of 100: (8 to 15). The resin has the characteristic of excellent film forming ability, bonding property, high-temperature washing resistance, dry cleaning resistance, score resistance, flame retardancy and the like.

Description

technical field [0001] The invention relates to a halogen-free flame-retardant polyurethane resin for reflective materials, which belongs to the polymer coating adhesive resin, and is especially suitable for bonding and coating the cloth base of reflective cloth and reflective body. Background of the invention [0002] Reflective materials are used in road construction management, fire protection, maritime affairs, transportation, mining operations or other operations to ensure the safety of personnel. Reflective materials are added to work clothes, which have a warning effect. A variety of reflective materials are known, their application fields are expanding, and people's performance requirements are also increasing, especially for high-strength reflective performance, high-temperature washing resistance and dry-cleaning resistance of reflective fabrics. , and the requirements for safety flame retardant properties. [0003] The patent CN1746251A of Beijing Gaomeng Chemica...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L75/04C08L83/04C08K13/02C08K3/22C08K5/3492C08K5/521C08K5/52C08K5/523C08G18/66D06M15/564D06M11/45D06M13/364D06M13/292D06Q1/10
Inventor 牛正发林学海曹刚
Owner 南京夜视丽精细化工有限责任公司