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Liquid coolant composition

A technology of composition and cooling liquid, applied in heat exchange materials, chemical instruments and methods, etc., can solve the problem of large amount of corrosion, and achieve the effect of preventing corrosion, excellent anti-corrosion performance, and excellent anti-corrosion performance

Active Publication Date: 2010-01-27
CCI CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] However, this coolant composition also has a problem in that the amount of corrosion is large in a test of the corrosion performance of an aluminum heat transfer surface at a temperature exceeding 150° C.

Method used

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  • Liquid coolant composition
  • Liquid coolant composition
  • Liquid coolant composition

Examples

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Embodiment Construction

[0030] best practice

[0031]Subsequently, the composition of the present invention will be described in further detail. Table 1 below shows, respectively, as a preferred embodiment, an example (Example 1) that contains three components (a) to (c) and does not contain phosphate, and an example (Example 1) that contains three components (a) to ( c), and an example (embodiment 2) comprising phosphate, as a comparison, an example (comparative example 1) comprising only component (a) but not the other two components (b) and (c), comprising Components (b) and (c), an example of substituting aliphatic monobasic acid for component (a) (comparative example 2), comprising components (b) and (c), substituting aliphatic dibasic acid for component An example of (a) (Comparative Example 3), and an example comprising only component (a) and phosphate (Comparative Example 4).

[0032]

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PUM

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Abstract

The present invention provides a coolant composition having a glycol as a main component, which prevents iron and aluminum from being corroded, and in particular, has excellent corrosion preventing properties for aluminum and aluminum alloys at high temperatures, and the coolant composition is characterized by containing: (a) 0.1 - 10 % by weight of at least one component selected from among aromatic monobasic acids and the salts thereof; (b) 0.0001 - 0.1 % by weight of at least one component selected from among strontium compounds, magnesium compounds and calcium compounds; and (c) 0.01 - 1.0 % by weight of 2-phosphonobutane-1, 2, 4-tricarboxylic acid or the salt thereof.

Description

technical field [0001] The present invention relates to a coolant composition for use as a coolant mainly for internal combustion engines. In particular, the present invention relates to a cooling liquid composition with excellent performance in anticorrosion of iron and aluminum-based metals, in particular, a cooling liquid composition with excellent anticorrosion performance against aluminum and aluminum alloys at high temperatures exceeding 150°C . Background technique [0002] For example, metals such as aluminum, aluminum alloy, cast iron, steel, brass, solder and copper are used in the cooling system of traditional internal combustion engines. Especially in recent years, in order to reduce the weight of the automobile body, a large amount of aluminum and aluminum alloys have been used As a component in the cooling system. [0003] These metals are corroded when in contact with water or air. To prevent corrosion, coolant compositions used in cooling systems of interna...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K5/00C23F11/12C09K5/10C23F11/08
CPCC09K5/10C23F11/08
Inventor 江川浩司加贺伸行
Owner CCI CORPORATION