Easy-to-reuse glass container and mfg. method thereof

A glass container and glass technology, which is applied to the device for coating liquid on the surface, special surface, coating, etc., can solve the problems of easy repellency of marking paint, reduction of hardness and residue of cured coating film, etc.

Inactive Publication Date: 2005-06-08
兴亚玻璃(硝子)株式会社
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] In addition, considering that if a reactive diluent is added in the prior art, the hardness of the cured coating film will be reduced, and if a silane coupling agent is added, its release property and water retention will be improved, which will make the marking paint easy to produce Repellency, which creates residual problems when reused

Method used

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  • Easy-to-reuse glass container and mfg. method thereof
  • Easy-to-reuse glass container and mfg. method thereof
  • Easy-to-reuse glass container and mfg. method thereof

Examples

Experimental program
Comparison scheme
Effect test

no. 2 Embodiment

[0107] The second embodiment is that the coating composition for glass (this coating composition for glass contains polyol compound in the range of 50 to 400 weight units relative to 100 weight units of thermosetting resin or photocurable resin) Production of easy-to-reuse glass containers in the coating process of coating the glass container with a silane coupling agent in the range of 5 to 100 weight units, and in the curing process of heat-curing or photo-curing the coating composition for glass after coating method.

[0108] Hereinafter, each step will be specifically described. Since the coating composition for glass is the same as that of the first embodiment, description thereof will be omitted here.

[0109] 1. Smearing process

[0110] Usually, the coating process is a process of coating a glass coating composition on a transparent glass container. The coating method is not limited, and electrostatic coating, electrocoating, roll spraying, spraying (including air s...

Embodiment 1

[0148] 1. Preparation of coating composition for glass

[0149] At room temperature, put the following ingredients into a mixing container with a stirrer, and after stirring for 30 minutes (number of revolutions: 1000rpm), you can get a viscosity of 40mPa.s (25°C), solid content by weight 39% of glass with coating composition.

[0150] Melamine resin 100 weight units

[0151] Propylene polyol compound 180 weight units

[0152] (hydroxyl value 300mgKOH / g, number average molecular weight 3,000)

[0153] Lactone polyol compound 30 weight units

[0154] (hydroxyl value 200mgKOH / g, number average molecular weight 1,000)

[0155] Acyluidepropyltriethoxysilane 25 weight units

[0156] Phosphoric acid curing catalyst 5 weight units

[0157] Xylene 300 weight units

[0158] Butyl acetate 150 weight units

[0159] Isopropanol 90 weight units

[0160]In Table 1~Table 4, melamine resin is thermosetting resin, mixture of acrylic polyol compound and lactone polyol compound is react...

Embodiment 2～5 and comparative example 1～2

[0186] The impact of the addition amount of polyol compound has been discussed above, that is, in embodiment 1, for the melamine resin of 100 weight units, the weight ratio of polyol compound (acrylic acid polyol compound / caprolactone polyol compound= 50 / 50 mixture) the total addition amount except from 210 weight units to 100 weight units (embodiment 2), 150 weight units (embodiment 3), 250 weight units (embodiment 4) and 300 weight units (embodiment 5 ) except for a change, the same coating composition for glass as in Example 1 can be prepared and evaluated.

[0187] In addition, in Example 1, relative to 100 weight units of melamine resin, the addition amount of polyol compound was changed from 210 weight units to 40 weight units (comparative example 1) and 500 weight units (comparative example 2), respectively, All can be prepared and evaluated as the same coating composition for glass as in Example 1.

[0188] It can be seen from the table that if the amount of polyol co...

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Abstract

An easy-to-reuse glass container and its manufacturing method, which is to apply the coating composition for glass on the surface of the glass container by electrostatic coating method, and make it heat-cured or light-cured; wherein relative to 100 weight units of heat For curable resin or photocurable resin, the coating composition for glass contains 50-400 weight units of reactive diluent and 5-100 weight units of silane coupling agent. The advantage is that the glass coating composition with this ratio has excellent tightness and marking properties for glass containers; at the same time, when it is reused, even under relatively low-temperature heating, there will be no residual cured coating film, Easy to reuse.

Description

technical field [0001] The present invention relates to a glass container and a manufacturing method thereof, especially an easy-to-recycle glass container that has excellent compactness and marking performance, and does not easily leave a cured coating film when being reused, and a manufacturing method thereof. Background technique [0002] In the prior art, glass is a general-purpose material used to make decorative items or containers. For example, when used in containers, glass itself is chemically stable, so it is a very good material for the protection and storage of the contents. . [0003] But at the same time, it can also be seen that due to the high transparency of glass, the problems of light degradation and brittleness due to lack of shock resistance will occur for the contents of the glass container. [0004] Therefore, in response to the problem of photodegradation, a method of adding a colorant to the glass, or a method of etching the glass surface with hydro...

Claims

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Application Information

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IPC IPC(8): B05D5/00B05D7/24C03C17/28C03C17/30C03C17/32
Inventor神谷义明伏见邦博
Owner兴亚玻璃(硝子)株式会社