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Composition for internal hanging coating and anti-corrosion mirror using same

A composition, anti-corrosion technology

Inactive Publication Date: 2009-09-02
CENT GLASS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, as described above, since lead has a large anti-corrosion effect, it is not easy to ensure the required coating film performance, that is, anti-corrosion performance without using the content of lead.

Method used

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  • Composition for internal hanging coating and anti-corrosion mirror using same
  • Composition for internal hanging coating and anti-corrosion mirror using same
  • Composition for internal hanging coating and anti-corrosion mirror using same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0089] Embodiments 1 to 11 according to the first feature of the present invention are shown below. Each composition for interior coating films belonging to the composition range of the 1st characteristic of the composition of Examples 1-11 shown in Table 1 was prepared. Then, each composition for interior coating films of the composition of the comparative examples 1-7 shown in Table 2 and the composition range which does not belong to a 1st characteristic was prepared.

[0090]

[0091]

[0092] As shown in Table 1 and Table 2, calcium molybdate, aluminum phosphomolybdate, aluminum tripolyphosphate, calcium-exchanged silica, bismuth hydroxide are used as lead-free antirust pigments in (P) pigments, and oxide Iron, carbon, and calcium carbonate, precipitating barium sulfate, and talc are used as filler pigments. The unit is % by weight.

[0093] Moreover, as (B) binder resin composition, (A) alkyd resin, (E) epoxy resin, (M) crosslinking resin were used. Specifically...

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PUM

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Abstract

PROBLEM TO BE SOLVED: To provide a composition for a backing film having such an anticorrosion property as to maintain stable mirror surface quality over a prolonged period of time, not substantially using lead which is an environmental pollutant, and almost free of the restriction of usable time. SOLUTION: The composition for a backing film is a synthetic resin binder composition for a backing film for forming a backing film on a metal film formed on at least one surface of a glass substrate in order to produce a mirror, wherein calcium molybdate (C) as a lead-free rust preventing pigment is used as a pigment (P), neither lead nor lead compound is used in the lead-free rust preventing pigment, and an alkyd resin-based synthetic resin binder (B) is used.

Description

technical field [0001] The present invention relates to a built-in coating film (coating film) used for manufacturing a mirror, and a mirror using the same. membrane. In particular, it relates to an interior coating film for a mirror that does not substantially contain lead, which is a concern for environmental pollution, and a mirror using the same. Background technique [0002] Regarding rust prevention, studies and reports have been conducted using various materials. In particular, metals that are easily corroded, such as steel materials, have been proposed various measures in view of their original properties (for example, refer to Patent Document 1 and Non-Patent Document 1). Conversely, rust prevention of metal films on glass has not attracted sufficient attention, and there are some examples of technology development for some products such as mirrors. However, the anti-rust conditions of the metal film on glass are different from those of general steel, and they ca...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D167/04C09D7/12A47G1/02C09D163/00A47G1/00C03C17/38C09D5/08C09D161/20C09D167/08C09D175/04G02B5/08
Inventor 酒德元行福田昌次小田修矢野光芳
Owner CENT GLASS CO LTD