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Functional primer and its preparing process

A primer and functional technology, used in coatings, polyester coatings, etc., can solve the problems of contaminating drugs, failing to achieve protection, affecting packaging sealing, and achieving the effect of protecting drugs

Active Publication Date: 2006-12-20
JIANGSU ZHONGJIN MATAI MEDICINAL PACKAGING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When using aluminum foil coated with this kind of aluminum-plastic hot-melt adhesive to pack medicines containing volatile substances, the hot-melt adhesive layer will be re-dissolved and fall off in a short period of time, which not only pollutes the medicines, but also affects the integrity of the packaging. Sealing, secondly, when the activity of volatile substances is high, it will destroy the aluminum foil, making it unable to achieve the protective effect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Embodiment 1: a kind of functional primer, it is made of:

[0019] Mixed solvent of butanone, ethyl acetate, isopropanol 75%

[0020] Mixed resin of nitrocellulose and acrylic resin 5%

[0021] Ethylene glycol-terephthalate-sebacic acid-isoprene glycol copolymer 12%

[0022] A solvent-based glue made of 8% vinyl chloride-maleic anhydride-vinyl acetate terpolymer resin, wherein the percentages are mass percentages.

[0023] The mass proportion of butanone, ethyl acetate and isopropanol in the mixed solvent is 3:6:1; the mass proportion of nitrocellulose and acrylic resin in the mixed resin is 5:2.

[0024] Wherein, the preparation method of ethylene glycol-terephthalate-sebacic acid-isoprene glycol copolymer is: mix ethylene glycol, isoprene glycol and terephthalate in equal parts by mass, Add butyl phthalate as a catalyst, carry out transesterification at a temperature of 140°C to 180°C, remove the by-product methanol, lower the temperature to 120°C to 140°C, add an ...

Embodiment 2

[0026] Embodiment 2: a kind of functional primer, it is made of:

[0027] Mixed solvent of butanone, ethyl acetate, isopropanol 80%

[0028] Mixed resin of nitrocellulose and acrylic resin 3%

[0029] Ethylene glycol-terephthalate-sebacic acid-isoprene glycol copolymer 8%

[0030] A solvent-based glue made of 9% vinyl chloride-maleic anhydride-vinyl acetate terpolymer resin, wherein the percentages are mass percentages.

[0031] The mass proportion of butanone, ethyl acetate and isopropanol in the mixed solvent is 2:7:1; the mass proportion of nitrocellulose and acrylic resin in the mixed resin is 4:1.

[0032] In a 200-liter small reaction kettle with stirring and reflux, add 100 kg of mixed solvents such as methyl ethyl ketone, ethyl acetate, and isopropanol at a ratio of 3:6:1 at 40°C, and first add nitration at a ratio of 5:2. Dissolve 4kg of fiber and acrylic resin for 4 hours, add 15kg of ethylene glycol-terephthalate-sebacic acid-isoprene glycol copolymer reacted in ...

Embodiment 3

[0033] Embodiment 3: a kind of functional primer, it is made of:

[0034] Mixed solvent of butanone, ethyl acetate, isopropanol 78%

[0035] Mixed resin of nitrocellulose and acrylic resin 2%

[0036] Ethylene glycol-terephthalate-sebacic acid-isoprene glycol copolymer 11%

[0037] A solvent-based glue made of 9% vinyl chloride-maleic anhydride-vinyl acetate terpolymer resin, wherein the percentages are mass percentages.

[0038] The mass proportion of butanone, ethyl acetate and isopropanol in the mixed solvent is 3.5:5:2; the mass proportion of nitrocellulose and acrylic resin in the mixed resin is 6:3.

[0039] In a 200-liter small reaction kettle with stirring and reflux, add 100 kg of mixed solvents such as methyl ethyl ketone, ethyl acetate, and isopropanol at a ratio of 3:6:1 at 40°C, and first add nitration at a ratio of 5:2. Dissolve 1.4kg of fiber and acrylic resin for 3 hours, add 20kg of ethylene glycol-terephthalate-sebacic acid-isoprene glycol copolymer reacte...

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PUM

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Abstract

The functional bottom paint has glycol-paraphthalic acid-sebacic acid polymer as main adhering resin, mixed nitrocellulose-acrylic acid resin, glycol-paraphthalic acid-sebacic acid-isopentyl diol polymer, and mixed solvent of butanone, ethyl acetate, isopropanol, etc. It is painted onto aluminum foil and may have hot melt adhesive painted on it. The coating the paint forms has high density, hard dissolving and other performance of thermosetting resin as well as high surface tension like thermoplastic resin, and thus may be painted for the second time effectively. The present invention is used to coat blister packing aluminum foil to protect medicine effectively.

Description

technical field [0001] The invention relates to a primer, in particular to a functional primer used for the inner layer of aluminum foil covered blister packaging. [0002] The invention also relates to a preparation method of the functional primer. Background technique [0003] The existing commonly used covering aluminum foil for blister packaging is based on pure aluminum foil, and a protective layer and a printing layer or only a protective layer are attached to the outer surface of the aluminum foil; a printing layer and a hot melt adhesive layer are attached to the inner surface of the aluminum foil layer. Or only the hot melt adhesive layer. In the prior art, such as the Chinese patent whose patent number is 93111514.0, it discloses a kind of aluminum-plastic hot-melt adhesive: it is made of mixed solvent, ethylene glycol-terephthalate-sebacic acid-isoprene Alcohol copolymer, vinyl chloride-maleic anhydride-vinyl acetate terpolymer resin mixed. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D167/03
Inventor 李永安周立军徐根华徐金官柏金枝李晓霞
Owner JIANGSU ZHONGJIN MATAI MEDICINAL PACKAGING