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Drug packaging PE (polyethylene) film polyurethane adhesive and preparation method thereof

A polyurethane adhesive and film technology, applied in the direction of polyurea/polyurethane adhesive, adhesive, adhesive type, etc., can solve the problems of attenuation of bonding strength and insufficient bonding strength, so as to reduce residue and reduce coating cost , High peel strength effect

Inactive Publication Date: 2019-02-19
中山市康和化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the insufficient bonding strength of the current PE film used as a flexible packaging composite material, and the severe attenuation of the bonding strength after aging, it cannot meet the needs of pharmaceutical packaging. The first purpose of the present invention is to provide a polyurethane film for pharmaceutical packaging PE film. Adhesive, the adhesive has high bonding strength, no attenuation after aging, and low solvent residue in the composite film; the second purpose of the present invention is to provide the above-mentioned preparation method of the polyurethane adhesive used for pharmaceutical packaging PE film

Method used

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  • Drug packaging PE (polyethylene) film polyurethane adhesive and preparation method thereof
  • Drug packaging PE (polyethylene) film polyurethane adhesive and preparation method thereof
  • Drug packaging PE (polyethylene) film polyurethane adhesive and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0036] A polyurethane adhesive for PE film for pharmaceutical packaging, which is composed of the first component and the second component mixed at a molar ratio n(NCO) / n(OH)=1.05, and the raw material for the first component includes diphenylmethane 14 parts of diisocyanate (MDI), 120 parts of oligomer polyol, 30 parts of ethyl acetate, 0.5 part of nano silicon dioxide, 1.0 part of γ-aminopropyltriethoxysilane; the raw materials for the second component preparation include molecular weight 50 parts of polyoxypropylene diol with a molecular weight of 1000, 22 parts of polyoxypropylene triol with a molecular weight of 400, and 65 parts of isophorone diisocyanate (IPDI).

[0037] This is used for the polyurethane adhesive of medicine packaging PE film, and its preparation method is as follows:

[0038] Preparation of the first component: under nitrogen protection, add 50 parts of methylpropanediol, 15 parts of ethylene glycol, 5 parts of trimethylolpropane, 11 parts of malic aci...

Embodiment 2

[0046] A polyurethane adhesive for pharmaceutical packaging PE film, which is composed of the first component and the second component mixed at a molar ratio of n(NCO) / n(OH)=1.10, and the raw material for the first component includes hexamethylene 7 parts of diisocyanate (HDI), 100 parts of oligomer polyol, 21 parts of ethyl acetate, 0.6 part of nano-alumina, 0.8 part of γ-aminopropyltriethoxysilane; the raw materials for the preparation of the second component include molecular weight of 50 parts of polyoxypropylene diol, 10 parts of polyoxypropylene triol with a molecular weight of 400, and 65 parts of isophorone diisocyanate (IPDI).

[0047] This is used for the polyurethane adhesive of medicine packaging PE film, and its preparation method is as follows:

[0048] Preparation of the first component: under the protection of nitrogen, add 40 parts of methylpropanediol, 6 parts of trimethylolpropane, 25 parts of 1,6-hexanediol, 75 parts of adipic acid, and 23 parts of phthalic...

Embodiment 3

[0055] A kind of polyurethane adhesive that is used for the PE film of medicine packing, is made up of mixing by first component and second component by molar ratio n(NCO) / n(OH)=1.15, and first component preparation raw material comprises toluene diisocyanate ( TDI) 9 parts, 130 parts of oligomer polyol, 35 parts of ethyl acetate, 0.8 part of nano-montmorillonite, 0.5 part of γ-aminopropyltriethoxysilane; the second component preparation raw materials include molecular weight of 1000 60 parts of polytetrahydrofuran ether diol, 18 parts of polyoxypropylene triol with a molecular weight of 400, and 70 parts of isophorone diisocyanate (IPDI).

[0056] This is used for the polyurethane adhesive of medicine packaging PE film, and its preparation method is as follows:

[0057] Preparation of the first component: under the protection of nitrogen, 45 parts of methylpropanediol, 18 parts of 1,4-butanediol, 4 parts of trimethylolpropane, 58 parts of succinic acid, 21 parts of dimethyl t...

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Abstract

The invention provides a drug packaging PE film polyurethane adhesive. The drug packaging PE film polyurethane adhesive is characterized by being prepared by mixing a first component and a second component, wherein the first component is prepared from raw materials including, by weight part, 70-100 parts of oligomeric polyols, 5-20 parts of polyisocyanates, 20-50 parts of ethyl acetate, 0.5-1.0 part of nanoparticles and 0.5-1.0 part of coupling agent; the second component is prepared from raw materials including, by weight part, 60-120 parts of polyether polyols and 50-80 parts of polyisocyanates. The drug packaging PE film polyurethane adhesive is high in peeling strength when applied to thin PE films to meet the requirements of drug packaging, and meanwhile, is low in organic solvent residues in compounded films as well as use costs.

Description

technical field [0001] The invention belongs to the technical field of adhesives, and in particular relates to a polyurethane adhesive used for pharmaceutical packaging PE films, and also relates to a preparation method of the polyurethane adhesive used for pharmaceutical packaging PE films. Background technique [0002] Plastic composite flexible packaging has excellent processing performance, physical and mechanical properties, and good hygienic and safety performance. Compared with traditional packaging materials such as metal, ceramics, and glass, plastic composite flexible packaging is lighter and cheaper. Plastic composite flexible packaging has been widely used in food, medicine, cosmetics, textiles and other fields, and has become the most widely used packaging material at present. [0003] As a special product, pharmaceutical packaging is different from the packaging of general items. Pharmaceutical packaging must be able to effectively ensure the efficacy of medici...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J175/06C09J175/08C09J11/04C08G18/42C08G18/48C08G18/73C08G18/75C08G18/76C08G63/60C08G63/78
CPCC08G18/4018C08G18/4219C08G18/4812C08G18/4825C08G18/4829C08G18/4854C08G18/722C08G18/724C08G18/73C08G18/755C08G18/7614C08G18/7671C08G63/60C08G63/78C08K2003/2227C08K2201/011C09J11/04C09J175/06C09J175/08C08K3/36C08K3/22C08K3/346
Inventor 陈育城陈志国侯高明林秋云
Owner 中山市康和化工有限公司