Breathable easy-to-tear heat-seal coating adhesive capable of being heat-sealed on various base materials

A glue coating and base material technology, which is applied in the field of sterilization packaging of medicine and medical devices, can solve problems such as thermal creep, and achieve the effects of good thermal creep resistance, good aging resistance, and obvious cost advantages

Active Publication Date: 2022-08-05
BEMIS FLEXIBLE PACKAGING SUZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the negative pressure involved in the sterilization process to cause the bag to expand, under certain temperature and humidity conditions, there is a challenge of thermal creep

Method used

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  • Breathable easy-to-tear heat-seal coating adhesive capable of being heat-sealed on various base materials
  • Breathable easy-to-tear heat-seal coating adhesive capable of being heat-sealed on various base materials

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] An easy-to-release heat-sealing glue that is breathable and can be heat-sealed on a variety of substrates, characterized in that the heat-sealing glue comprises the following components by weight: 15 parts of acrylate copolymer, 15 parts of maleic anhydride 12 parts of branched polyethylene resin, 8 parts of modified epoxy resin, the modified epoxy resin is p-hydroxybenzoic acid epoxy resin, Tg point is 70°C, solid content is 35%, 1,6-hexamethylene diisocyanate 5 parts, 1 part of dodecyl fatty acid polyoxyethylene ether, 4 parts of polybutene, 0.5 part of dimethylaminopropylamine binder, 50 parts of isopropyl acetate solvent, 0.1 part of nano titanium dioxide UV remover, 2- 0.5 part of methylpropanesulfonic acid formulation, 0.1 part of polymeric urea smoothing agent, 0.1 part of antioxidant 168, 0.5 part of diisononyl phthalate excipient, and 0.2 part of dimethicone defoaming agent.

Embodiment 2

[0019] An easy-to-release heat-sealing glue that is breathable and can be heat-sealed on a variety of substrates, characterized in that the heat-sealing glue comprises the following components by weight: 30 parts of acrylate copolymers, 30 parts of maleic anhydride 35 parts of branched polyethylene resin, 19 parts of modified epoxy resin, the modified epoxy resin is p-hydroxybenzoic acid epoxy resin, Tg point is 80°C, solid content is 45%, 1,6-hexamethylene diisocyanate 10 parts, 6 parts of dodecyl fatty acid polyoxyethylene ether, 8 parts of polybutene, 1.5 parts of m-phenylenediamine binder, 85 parts of methyl ethyl ketone solvent, 2-hydroxy-4-methoxybenzophenone 0.3 parts of UV remover, 1.2 parts of hydroxypropyl acrylate formulation, 0.5 parts of polyethylene wax smoothing agent, 0.2 parts of antioxidant 1076, 4 parts of zinc ethylphenyl dithiocarbamate excipient, cyanuric chloride melamine 0.6 part of defoaming agent.

Embodiment 3

[0021] An easy-to-release heat-sealing glue that is breathable and can be heat-sealed on a variety of substrates, characterized in that the heat-sealing glue comprises the following components by weight: 30 parts of acrylate copolymers, 30 parts of maleic anhydride 12 parts of branched polyethylene resin, 19 parts of modified epoxy resin, the modified epoxy resin is p-hydroxybenzoic acid epoxy resin, Tg point is 70°C, solid content is 45%, 1,6-hexamethylene diisocyanate 5 parts, 6 parts of dodecyl fatty acid polyoxyethylene ether, 4 parts of polybutene, 1.5 parts of diaminodiphenylmethane binder, 50 parts of isopropyl alcohol solvent, hexamethylphosphoric triamide UV remover 0.3 part, 0.5 part of sodium propylene sulfonate formulation, 0.5 part of polyamide wax smoothing agent, 0.1 part of antioxidant 164, 4 parts of didecyl phthalate excipient, 0.2 part of polyoxypropylene glyceryl ether defoamer .

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Abstract

The invention discloses a breathable easy-to-tear heat-seal coating adhesive capable of being heat-sealed on various substrates, and the heat-seal coating adhesive is prepared from the following components in parts by weight: 15-30 parts of acrylate copolymer, 12-35 parts of maleic anhydride grafted polyethylene resin, 8-19 parts of modified epoxy resin, 5-10 parts of 1, 6-hexamethylene diisocyanate and 1-6 parts of dodecyl fatty acid polyoxyethylene ether. The coating is prepared from the following components in parts by weight: 4-8 parts of polybutylene, 0.5-1.5 parts of a consolidation agent, 50-85 parts of a solvent, 0.1-0.3 part of an ultraviolet elimination agent, 0.5-1.2 parts of a blending agent, 0.1-0.5 part of a smoothing agent, 0.1-0.2 part of an antioxidant, 0.5-4 parts of an excipient and 0.2-0.6 part of a defoaming agent. The thermal creep resistance is good, the aging resistance is achieved, the peel strength is high, the air permeability is good, and the comprehensive performance in all aspects is excellent.

Description

technical field [0001] The invention relates to the field of sterilization packaging of medicines and medical instruments, in particular to an easy-release heat-sealing glue that is breathable and can be heat-sealed on various substrates. Background technique [0002] Among all kinds of medical or pharmaceutical packaging products, sterile products need to be sterilized by ethylene oxide, steam or irradiation. Among them, the amount of ethylene oxide sterilization is relatively large, and the required sterilization packaging is relatively high. many. The medical packaging requirements for routine use of ethylene oxide sterilization are as follows: 1. It needs to adapt to ethylene oxide sterilization conditions. Since sterilization involves pumping negative pressure to expand the bag, under certain temperature and humidity conditions, there is a challenge of thermal creep. 2. Anti-aging performance to ensure that it needs to withstand a shelf life of 3-10 years after steril...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/04C09D151/06C09D163/00C09D5/20C09D7/61C09D7/63C09D7/65
CPCC09D133/04C09D151/06C09D5/20C09D7/61C09D7/63C09D7/65C08K2201/011C08K2003/2241C08L2201/08C08L51/06C08L63/00C08K5/29C08K3/22C08K5/42C08K5/12C08L33/04
Inventor 曹凯涂成波黄湘晖李全布王清
Owner BEMIS FLEXIBLE PACKAGING SUZHOU
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