KR101817848B1 - Rust resistance paint composition with excellent storage ability - Google Patents
Rust resistance paint composition with excellent storage ability Download PDFInfo
- Publication number
- KR101817848B1 KR101817848B1 KR1020160004965A KR20160004965A KR101817848B1 KR 101817848 B1 KR101817848 B1 KR 101817848B1 KR 1020160004965 A KR1020160004965 A KR 1020160004965A KR 20160004965 A KR20160004965 A KR 20160004965A KR 101817848 B1 KR101817848 B1 KR 101817848B1
- Authority
- KR
- South Korea
- Prior art keywords
- weight
- parts
- ethyl silicate
- rust
- silicate resin
- Prior art date
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Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
- C09D5/10—Anti-corrosive paints containing metal dust
- C09D5/106—Anti-corrosive paints containing metal dust containing Zn
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
- C09D183/02—Polysilicates
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
- C09D5/082—Anti-corrosive paints characterised by the anti-corrosive pigment
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
- C09D5/082—Anti-corrosive paints characterised by the anti-corrosive pigment
- C09D5/084—Inorganic compounds
Abstract
The present invention relates to an anti-corrosive coating material which is excellent in storage stability as well as physical properties such as rust-proofing property and water-resistance, and which is easy to apply in the field, by including ethyl silicate resin, zinc powder, extender pigment and solvent.
Description
The present invention relates to a rust-preventive coating composition excellent in storage stability.
Although the anti-rust coating material for the year-end and the end-of-year shop primer coating is excellent in anti-rusting property, there is a problem that inconvenience is frequently generated due to the precipitation problem during field work or storage. This is a problem due to the characteristics of the product in which the zinc salt in the high boiling state is excessively put into the paint, and there is an inconvenience to re-stir the product once precipitated.
In particular, due to the nature of the shop primer that performs line work, the delay of the stirring operation can have a great influence on the whole process because it performs a rapid continuous operation.
Therefore, there is still a demand for an anticorrosive coating material which is excellent in storage stability of a coating material even if it contains zinc, and can satisfy the specifications of a shop primer for steel bridge.
An object of the present invention is to provide an anti-corrosive coating material which is excellent in storage stability as well as physical properties such as rust-proofing property and water-resistance, and which is easy to apply in the field, by including ethyl silicate resin, zinc powder, extender pigment and solvent.
The anti-corrosive coating composition of the present invention comprises 5 to 20 parts by weight of an ethyl silicate resin, 20 to 40 parts by weight of zinc powder, 5 to 30 parts by weight of an extender pigment and 35 to 60 parts by weight of a solvent based on 100 parts by weight of the total composition.
The anti-corrosive coating material of the present invention is excellent in appearance as well as physical properties such as rust resistance, water resistance and storage stability by appropriately mixing ethyl silicate resin, zinc powder and extender pigment. Therefore, when applied to storage and field applications, especially to steel bridge and plant shop primer line, it is possible to perform smooth work due to excellent storage stability distinguished from conventional paints.
Hereinafter, the present invention will be described in more detail.
The anti-corrosive coating composition of the present invention comprises 5 to 20 parts by weight of an ethyl silicate resin, 20 to 40 parts by weight of zinc powder, 5 to 30 parts by weight of an extender pigment and 35 to 60 parts by weight of a solvent based on 100 parts by weight of the total composition.
The anti-corrosive coating composition of the present invention has a silica content of 35 to 60% by weight and an acidity (HCl content in the resin) of less than 70 ppm, For example, 1 to 65 ppm, a viscosity of 4 to 7 cps at 25 占 폚, and a specific gravity of 1.04 to 1.07. When the content of the silica is out of the above range, there is a problem that the appearance becomes poor, and when the acidity is high, the storage stability of the paint becomes short.
The anti-corrosive coating composition of the present invention may contain 5 to 20 parts by weight, for example 6 to 18 parts by weight, for example 8 to 16 parts by weight, of ethyl silicate resin per 100 parts by weight of the total composition. If the content of the ethyl silicate resin is too small, the desired paint adhesion can not be obtained. If the content of the ethyl silicate resin is too large, the content of the anticorrosive pigment is reduced in the total content, thereby deteriorating the rustproofing property.
The zinc powder used in the anti-corrosive coating composition of the present invention plays a role of a rust preventive pigment and is not particularly limited. However, the zinc powder has a metalic zinc content of 95% or more, an average particle size of zinc particles of 7 탆 or less, An oil absorption of 5 to 7% can be used. If the metal zinc content is too small or the particle distribution exceeds the above range, there is a problem that the desired rust inhibitive effect can not be obtained.
The anti-corrosive coating composition of the present invention may contain 20 to 40 parts by weight, for example, 22 to 38 parts by weight, such as 23 to 38 parts by weight, of zinc powder per 100 parts by weight of the total composition. If the content of zinc powder is too small, the rustproofing property is deteriorated. Conversely, if the content is too large, storage stability and adhesion may be deteriorated.
The composition of the present invention may have a weight ratio of ethyl silicate resin: zinc powder of 1: 2 to 1: 4. If the weight ratio is too low or too large, rust resistance, storage stability and adhesion may be deteriorated.
Although the conventional anticorrosive coating composition contains an excessive amount of zinc powder for obtaining anticorrosion property, zinc has a problem of poor storage property due to precipitation of expensive pigment. The anticorrosive paint composition of the present invention has a reduced zinc content and is superior in storage stability as compared with the conventional zinc rust preventive paint composition, and can also ensure excellent rust resistance even with a relatively small amount of zinc.
The extender pigments used in the rust-preventive coating composition of the present invention serve to improve the scratch resistance and rust-preventive properties, and are not particularly limited, and talc, barium sulfate, mica, silica and combinations thereof may be used.
The anti-corrosive coating composition of the present invention may contain 5 to 30 parts by weight, such as 10 to 28 parts by weight, for example, 15 to 25 parts by weight, of extender pigment relative to 100 parts by weight of the total composition. If the content of the extender pigment is too small, the improvement in the scratch resistance and the rust prevention property can not be expected, and if the content is too large, the workability may be deteriorated.
The solvent used for the anti-corrosive coating composition of the present invention may be selected from among xylene, toluene, alcohol, propylene glycol methyl ether, ketone, and combinations thereof, though it is not particularly limited and may improve the wettability and workability of the substrate. , And isobutyl alcohol can be used as the alcohol.
The anti-corrosive coating composition of the present invention may contain 35 to 60 parts by weight, for example, 35 to 55 parts by weight, for example, 35 to 50 parts by weight, of the solvent relative to 100 parts by weight of the total composition. If the content of the solvent is too small, improvement of the wettability and workability of the substrate can not be expected, and when the content is too large, the viscosity is lowered and precipitation occurs.
The anti-corrosive coating composition of the present invention may further comprise at least one additive selected from thickeners, moisture absorbers, color pigments, acids, antifoaming agents and dispersants. As the moisture absorbent, zeolite (ZEOLITE) having a loss on ignition (1,750 ° F) of 8% or less and a bulk density of 325 MESH (99%) or more can be used. For example, HPC-H, Bentone SD2 and the like can be used as the incrementing agent, and a coloring pigment is used for improving the hiding power. For example, titanium dioxide, carbon black and the like can be used. The acid is used for improving storability and hardenability, and for example, HCl having a purity of 35% or more can be used. The anti-corrosive coating composition of the present invention may contain 0.1 to 10 parts by weight of an additive per 100 parts by weight of the total composition.
Hereinafter, the present invention will be described more specifically by way of examples. However, these examples are provided only for the understanding of the present invention, and the scope of the present invention is not limited to these examples in any sense.
[Example]
The rust-preventive coating compositions of Examples 1 to 4 and Comparative Examples 1 to 6 were prepared with the compositions shown in the following Table 1, and their storage stability, rust-preventive properties and water resistance were evaluated.
Increase 1: Powder phase thickener: HPC-H (Hydro Propyl Cellulose)
Increasing second: Powder phase thickening agent: Bentone SD2 (Bentonite system), Elementis
Colored pigment: Titanium dioxide (TiO 2 content 91% or more, pH 6 to 9, oil absorption 22 or less, tinting strength 1780% or more)
Extension Pigment: Talc (oil absorption 78 ~ 82%)
Alcohol: Isobutyl alcohol (purity 99%)
Moisture absorbent: Zeolite (ignition loss (1,750 ℉) 8% or less, body and min (325MESH) 99.8% or more)
Acid: HCl (purity 35%)
Zinc powder: total zinc content 99% or more, metal zinc content 96% or more, particle distribution 3㎛ or less
Ethyl silicate resin: silica content 40 to 42% by weight, acidity Max. 50 ppm, viscosity 4 to 7 cps
As can be seen from the above results, the rust-preventive paints of Examples 1 to 4 of the present invention had less zinc than the conventional rust-preventive paints, so that no precipitation occurred at room temperature and high temperature storage, It was also found that the rust-preventive property and the water resistance were excellent. However, in the case of the comparative example, since the zinc content is high, precipitation occurs in the same manner as the conventional anticorrosive paint, and the storage stability is poor.
Therefore, the anticorrosive paint of the present invention can be usefully used especially in steel bridge and plant shop primer line due to excellent storability and rust prevention property.
Claims (5)
Wherein the weight ratio (ethyl silicate resin: zinc powder) between the ethyl silicate resin and the zinc powder is 1: 2 to 1: 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020160004965A KR101817848B1 (en) | 2016-01-14 | 2016-01-14 | Rust resistance paint composition with excellent storage ability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020160004965A KR101817848B1 (en) | 2016-01-14 | 2016-01-14 | Rust resistance paint composition with excellent storage ability |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20170085649A KR20170085649A (en) | 2017-07-25 |
| KR101817848B1 true KR101817848B1 (en) | 2018-01-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020160004965A KR101817848B1 (en) | 2016-01-14 | 2016-01-14 | Rust resistance paint composition with excellent storage ability |
Country Status (1)
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| KR (1) | KR101817848B1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107699128A (en) * | 2017-10-17 | 2018-02-16 | 江苏欣安新材料技术有限公司 | A kind of alcohol-soluble zinc-rich coating and its production method |
| JP6967079B2 (en) * | 2017-10-31 | 2021-11-17 | 中国塗料株式会社 | Anti-corrosion paint composition and its uses |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103627295A (en) * | 2013-09-30 | 2014-03-12 | 厦门双瑞船舶涂料有限公司 | Preparation method and filling technology of single-component shop primer |
| JP5686480B2 (en) | 2012-03-29 | 2015-03-18 | 大日本塗料株式会社 | Water-based paint composition, method for producing the water-based paint composition, and shop primer |
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2016
- 2016-01-14 KR KR1020160004965A patent/KR101817848B1/en active IP Right Grant
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5686480B2 (en) | 2012-03-29 | 2015-03-18 | 大日本塗料株式会社 | Water-based paint composition, method for producing the water-based paint composition, and shop primer |
| CN103627295A (en) * | 2013-09-30 | 2014-03-12 | 厦门双瑞船舶涂料有限公司 | Preparation method and filling technology of single-component shop primer |
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| Publication number | Publication date |
|---|---|
| KR20170085649A (en) | 2017-07-25 |
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