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Adhesive used for medicine blister packaging and preparation method thereof

A technology of blister packaging and adhesives, applied in the direction of adhesive types, ester copolymer adhesives, hydrocarbon copolymer adhesives, etc., can solve problems such as difficult to meet market demand, and achieve a wide range of heat sealing temperatures range, high heat-sealing adhesive strength, simple and easy preparation method

Inactive Publication Date: 2016-01-06
霍应怀
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

However, it is still difficult to meet the market demand

Method used

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Embodiment Construction

[0018] The technical effects of the present invention will be further described below in conjunction with specific embodiments, so as to facilitate the understanding of those skilled in the art.

[0019] An adhesive for pharmaceutical blister packaging, made of the following raw materials in parts by weight: 18 parts of acrylate copolymer resin, 7 parts of vinyl chloride copolymer resin, 6.5 parts of styrene copolymer resin, 1.2 parts of stearic acid, and 13 parts of calcium carbonate , 5 parts of asbestos powder, 10 parts of white carbon black, 2 parts of barium laurate, 78 parts of mixed solvent.

[0020] The acrylate copolymer resin is a radical copolymer of methyl methacrylate and n-butyl acrylate, its mass average molecular weight Mw ranges from 50,000 to 300,000, and its glass transition temperature Tg ranges from 40 to 70°C.

[0021] The vinyl chloride copolymer resin is a vinyl chloride-vinyl acetate-maleic anhydride ternary copolymer resin, its mass-average molecular ...

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Abstract

The invention discloses an adhesive used for medicine blister packaging and a preparation method thereof. The adhesive is prepared from the following raw materials in parts by weight: 10-25 parts of acrylic copolymer resin, 4-10 parts of vinyl chloride copolymer resin, 3-10 parts of styrene copolymer resin, 0.8-1.5 parts of stearic acid, 10-15 parts of calcium carbonate, 3-7 parts of asbestos powder, 8-12 parts of white carbon black, 1-3 parts of barium laurate and 70-85 parts of mixed solvent. The adhesive used for medicine blister packaging and the preparation method have the beneficial effects that higher hot sealing adhesive strength and a wide hot sealing temperature range are provided through the mass-average molecular weight ranges and glass transition temperature ranges of raw materials used by the adhesive; all the indicators conform to the standards of national medicine packaging materials; the preparation method is simple and practicable; the adhesive is not only suitable for blister packaging but also suitable for polystyrene films and polystyrene composite materials.

Description

technical field [0001] The invention belongs to the technical field of adhesives, and in particular relates to an adhesive for drug blister packaging and a preparation method thereof. Background technique [0002] At present, pharmaceutical blister packaging and its composite flexible packaging have been widely used, not only in the field of pharmaceutical packaging, but also in the food and health care products industries. The so-called drug blister packaging is made by vacuum suction (blowing) or filling the drug in the molded blister, using an adhesive as a coating, using drug aluminum foil to cover the surface, and through pressure, at a certain temperature Under the condition of time, it is heat-sealed with the foam-forming substrate. The quality of pharmaceutical blister packaging depends not only on the materials used, but also on the adhesives used. [0003] At present, adhesives for drug blister packaging include the following categories: 1) Pressure-sensitive adh...

Claims

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Application Information

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IPC IPC(8): C09J133/08C09J127/06C09J125/08C09J11/04C09J11/06
Inventor 霍应怀
Owner 霍应怀
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