Treated surface metal sheet and treated surface metal sheet coated with organic resin

A technology of surface treatment and organic resin, which is applied in the field of surface treatment metal plates, can solve the problem of not being able to obtain seamless tanks that meet the sag resistance, and achieve excellent sag resistance, economical benefits, and reduce the environmental load.

Active Publication Date: 2018-03-27
TOYO SEIKAN GRP HLDG LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, despite using the above-mentioned chrome-free surface-treated metal sheet, a seamless can that satisfies dent resistance cannot be obtained

Method used

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  • Treated surface metal sheet and treated surface metal sheet coated with organic resin
  • Treated surface metal sheet and treated surface metal sheet coated with organic resin
  • Treated surface metal sheet and treated surface metal sheet coated with organic resin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～36

[0169] [Preparation of surface treatment liquid]

[0170] The polycarboxylic acid-based polymer was dissolved in ion-exchanged water to obtain an aqueous solution containing 2% by mass of the polycarboxylic acid-based polymer. To the thus obtained polycarboxylic acid-based polymer aqueous solution, an aqueous solution of a zirconium compound was added so as to obtain a predetermined blending ratio of solid components thereof. After adjusting the aqueous solution of a zirconium compound to 2 mass % with ion-exchanged water, it added to the polycarboxylic acid type polymer aqueous solution. Next, ion-exchanged water is added thereto so that the solid component concentration of the polycarboxylic acid-based polymer in the aqueous solution is 0.5 to 1% by mass, thereby obtaining a surface treatment liquid.

[0171] As the polycarboxylic acid-based polymer, polyacrylic acid ("JURYMER AC-10LP, Mw=25,000", manufactured by TOAGOSEI Co., Ltd.: expressed in the table as "PAA1", "JURYME...

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Abstract

The present invention relates to a treated surface metal sheet in which on at least one surface of a metal sheet, a surface treatment film layer containing a polycarboxylic acid polymer and a zirconium compound is formed, and on said surface treatment film layer, a coating film containing a polyester resin, a phenol resin and an acid catalyst is formed. The treated surface metal sheet is a non-chromium-based treated surface metal sheet that is capable of providing cans and can lids: which have excellent dent resistance with respect to even acidic beverages, etc.; and for which there is no riskof an organic resin covering layer formed on said coating film delaminating even under high temperature / humidity conditions such as in disinfection treatment, and the organic resin covering layer hasexcellent hot water-resistant adhesiveness.

Description

technical field [0001] The present invention relates to a surface-treated metal sheet and an organic resin-coated surface-treated metal sheet for manufacturing cans. More specifically, the present invention relates to the ability to provide a product that has excellent dent resistance against even acidic beverages, etc., does not peel off an organic resin coating layer even under a high-temperature humid environment such as sterilization treatment, and has excellent heat-resistant airtightness. Chrome-free surface-treated metal sheets and organic resin-coated surface-treated metal sheets for compatible tank bodies and lids. Background technique [0002] An organic resin-coated metal sheet obtained by coating a metal sheet such as aluminum with an organic resin has long been known as a can-making material. It is also known to subject the laminate to deep drawing or drawing and thinning to produce seamless cans for containing beverages, or to press form the laminate to produc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C28/00B32B15/08B65D1/00B65D1/12C23C22/48
CPCC23C28/00B65D17/02C23C22/08C23C22/50C23C22/56B05D7/14B65D1/12C23C22/48C23C22/82B05D2508/00B65D1/00B32B15/08C09D7/61B05D1/40B05D3/0272B05D7/544B32B15/09B32B15/20B32B2255/06B32B2255/26B32B2439/66C09D167/02
Inventor 柏仓拓也船城裕二宫井智弘樱木新
Owner TOYO SEIKAN GRP HLDG LTD
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