JPH0694023B2 - Aerated concrete products Water-based anticorrosive paint for reinforcing bars - Google Patents
Aerated concrete products Water-based anticorrosive paint for reinforcing barsInfo
- Publication number
- JPH0694023B2 JPH0694023B2 JP9296289A JP9296289A JPH0694023B2 JP H0694023 B2 JPH0694023 B2 JP H0694023B2 JP 9296289 A JP9296289 A JP 9296289A JP 9296289 A JP9296289 A JP 9296289A JP H0694023 B2 JPH0694023 B2 JP H0694023B2
- Authority
- JP
- Japan
- Prior art keywords
- parts
- weight
- rust preventive
- water
- less
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000003973 paint Substances 0.000 title claims description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims description 21
- 239000004567 concrete Substances 0.000 title claims description 18
- 230000003014 reinforcing effect Effects 0.000 title description 7
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 30
- 230000003449 preventive effect Effects 0.000 claims description 28
- 239000000049 pigment Substances 0.000 claims description 20
- 239000000839 emulsion Substances 0.000 claims description 11
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 10
- 229920001909 styrene-acrylic polymer Polymers 0.000 claims description 9
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 5
- 239000000377 silicon dioxide Substances 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 5
- 239000011575 calcium Substances 0.000 claims description 4
- 239000008199 coating composition Substances 0.000 claims description 4
- 229920001577 copolymer Polymers 0.000 claims description 4
- 229920000126 latex Polymers 0.000 claims description 4
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 3
- 229910052791 calcium Inorganic materials 0.000 claims description 3
- 239000004816 latex Substances 0.000 claims description 3
- 229920006243 acrylic copolymer Polymers 0.000 claims 1
- 239000011248 coating agent Substances 0.000 description 21
- 238000000576 coating method Methods 0.000 description 21
- 239000010408 film Substances 0.000 description 15
- 229910000831 Steel Inorganic materials 0.000 description 10
- 239000010959 steel Substances 0.000 description 10
- 239000003795 chemical substances by application Substances 0.000 description 9
- 238000007598 dipping method Methods 0.000 description 8
- 238000001035 drying Methods 0.000 description 8
- 239000000654 additive Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 239000002356 single layer Substances 0.000 description 5
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 239000010426 asphalt Substances 0.000 description 3
- 239000010409 thin film Substances 0.000 description 3
- 230000000996 additive effect Effects 0.000 description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 description 2
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 2
- 239000000920 calcium hydroxide Substances 0.000 description 2
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 2
- 235000011116 calcium hydroxide Nutrition 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 239000011381 foam concrete Substances 0.000 description 2
- 239000011396 hydraulic cement Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000004846 water-soluble epoxy resin Substances 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 229920006026 co-polymeric resin Polymers 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Landscapes
- Paints Or Removers (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、建築構造部材として広く使用されている、オ
ートクレーブ養生気泡コンクリート製品の鉄筋に塗装さ
れる水性防錆塗料に関する。Description: TECHNICAL FIELD The present invention relates to a water-based anticorrosive paint that is widely used as a building structure member and that is applied to the reinforcing bars of an autoclave-cured aerated concrete product.
従来より、軽量気泡コンクリートパネルには、異形鉄筋
や、ラス網と呼ばれる金網が入っており一定の強度を維
持しているが、これらの気泡コンクリート製品が製造さ
れる際に高温高圧のオートクレーブ養生という工程を経
るため、気泡コンクリート製品には防錆、及びコンクリ
ートとの付着性向上の為アスファルト系、溶剤系、水硬
性セメント系等の防錆剤が塗装されていた。Conventionally, lightweight aerated concrete panels contain deformed rebar and wire mesh called lath net to maintain a certain level of strength, but when these aerated concrete products are manufactured, they are called autoclave curing at high temperature and pressure. As it went through the process, the aerated concrete products were coated with rust preventives such as asphalt, solvent, and hydraulic cement in order to prevent rust and improve adhesion with concrete.
しかしながら、アスファルト系や、溶剤系の防錆剤は有
機溶剤を使用しているために、使用環境衛生上好ましく
なく、さらに火災や爆発といった危険も有る。一方水硬
性セメント系防錆剤は、こうした不具合は無いが、セメ
ントを使用しているために防錆剤が徐々に凝固してつい
には使用不可能となる等の欠点が有る。However, since an asphalt-based or solvent-based rust preventive agent uses an organic solvent, it is not preferable in terms of environmental hygiene in use, and there is a risk of fire or explosion. On the other hand, the hydraulic cement-based rust preventive agent does not have such a problem, but has the drawback that the rust preventive agent gradually solidifies due to the use of cement and finally becomes unusable.
また、ゴムラテックスを使った水性防錆剤も有るが、塗
膜強度や乾燥性能が不足で、高温高圧のオートクレーブ
養生には耐えられない。There are also water-based rust preventives that use rubber latex, but the strength of the coating and the drying performance are insufficient, and they cannot withstand autoclave curing under high temperature and high pressure.
こうした課題を解決せんとして、特公昭63-20468号には
水性単層のスチレン共重合体ラテックス等を使用した防
錆剤が提案されているが、さらに高性能の防錆性能、コ
ンクリートへの付着力を持ち、同時に薄膜で使用できる
水性防錆塗料が望まれている、というのが現状である。As a solution to these problems, Japanese Patent Publication No. 63-20468 proposes a rust preventive agent that uses an aqueous single-layer styrene copolymer latex, etc. At present, there is a demand for a water-based rust-preventive paint which has a strong adhesive force and can be used in a thin film at the same time.
かかる事態に鑑みて、本発明者等は鋭意研究の結果、高
い防錆性能と強力なる鉄筋への付着力を持ち、同時に薄
膜で使用できる水性防錆塗料の開発に及んだものであ
る。しかして本発明の要旨は 1.下塗と上塗との複層水性防錆塗料であって、下塗は、
有機固形分30重量部以上60重量部以下のスチレン−アク
リル共重合体エマルジョン100重量部以上60重量部以下
に対し、顔料40重量部以下を配合し、上塗は、有機固形
分30重量部以上60重量部以下のスチレン−アクリル共重
合体エマルジョン、若しくはスチレン共重合体ラテック
ス70重量部以上30重量部以下に対し、シリカ系顔料、カ
ルシウム系顔料を含む顔料30重量部以上70重量部以下を
配合してなることを特徴とする気泡コンクリート製品鉄
筋用水性防錆塗料。In view of such a situation, as a result of earnest studies, the inventors of the present invention have developed a water-based anticorrosion coating which has a high anticorrosion performance and a strong adhesion to a reinforcing bar and can be used in a thin film at the same time. Therefore, the gist of the present invention is 1. a multi-layered water-based rust preventive paint comprising a base coat and a top coat, wherein the base coat is
Organic solid content 30 parts by weight or more and 60 parts by weight or less styrene-acrylic copolymer emulsion 100 parts by weight or more and 60 parts by weight or less, with respect to the pigment 40 parts by weight or less, the topcoat, organic solid content 30 parts by weight or more 60 parts Styrene-acryl copolymer emulsion or less than 70 parts by weight of styrene copolymer latex, 30 parts by weight or more than 30 parts by weight of silica-based pigment, a pigment containing a calcium-based pigment 30 parts by weight or more and 70 parts by weight or less are blended. Aqueous rust preventive paint for reinforcing bars of aerated concrete products.
に存する。Exist in.
下塗、上塗に共通して水性で高い防錆性能を発揮するた
めには、スチレン−アクリル共重合体エマルジョンに顔
料分を分散することを必須とする。It is essential to disperse the pigment component in the styrene-acrylic copolymer emulsion in order to exhibit high water-based anticorrosion properties in common with both the base coat and the top coat.
下塗は鉄筋に直接塗装されるため、防錆性能を重視し
た、配合設計がなされている。Since the undercoat is applied directly to the reinforcing bars, the composition is designed with emphasis on rust prevention performance.
防錆性能を上げるためには塗膜におけるスチレン−アク
リル共重合体樹脂固形分の割合が大きければ良く、この
ためには、顔料の配合比率を小さくすれば良い。理想的
には配合しなくとも差し支えないが、そうすると相対的
に塗料のコストが上がるので下塗塗料全量100重量部に
対し40重量部以下の範囲で適宜決められる。使用する顔
料に特に規定はないが、防錆顔料の使用は防錆性能の向
上からして好ましい。40重量部を超えると、満足なる防
錆性能が得られない。さらに配合中に、水性防錆剤、及
び水溶性エポキシ樹脂を添加することにより防錆力を向
上させることが出来る。In order to improve the rust preventive performance, the proportion of the styrene-acrylic copolymer resin solid content in the coating film should be large, and for this purpose, the blending ratio of the pigment should be small. Ideally, it does not matter even if it is not blended, but if it does so, the cost of the coating material will increase relatively, so it can be appropriately determined within the range of 40 parts by weight or less relative to 100 parts by weight of the total base coating material. Although there is no particular limitation on the pigment used, it is preferable to use a rust preventive pigment from the viewpoint of improving the rust preventive performance. If it exceeds 40 parts by weight, satisfactory antirust performance cannot be obtained. Further, by adding an aqueous rust preventive agent and a water-soluble epoxy resin during compounding, the rust preventive power can be improved.
上塗は、高温高圧のオートクレーブ養生に耐える強靱な
塗膜性能と、オートクレーブ養生の結果多数の気泡が発
生するコンクリートへの付着力を重視し防錆力も備える
配合設計がなされている。The topcoat is designed to have a tough coating film that can withstand autoclave curing under high temperature and high pressure, and a rust preventive force that emphasizes adhesion to concrete where a large number of bubbles are generated as a result of autoclave curing.
顔料配合中、シリカ系顔料とカルシウム系顔料は必須の
ものである。オートクレーブ養生の際に高温高圧で気泡
コンクリートが形成されるが、塗膜側にSiO2やCaが存在
すれば、成分の近似性により両者は極めて強力に付着し
て一体化するからである。さらに防錆顔料を配合するこ
とも差し支えない。Silica-based pigments and calcium-based pigments are indispensable during pigment blending. This is because cellular concrete is formed at high temperature and high pressure during autoclave curing, but if SiO 2 and Ca are present on the coating film side, the two will extremely strongly adhere and integrate due to the similarity of the components. It is also possible to add an anticorrosive pigment.
上塗塗料全量に対して、顔料分30重量部未満だと、オー
トクレーブ養生時にコンクリートにクラックが発生した
り、コンクリートへの付着力が不足する虞れがあり、70
重量部を超えると、防錆性が低下する虞れがある。If the pigment content is less than 30 parts by weight with respect to the total amount of the top coating composition, cracks may occur in the concrete during autoclave curing, or the adhesion to the concrete may be insufficient.
If it exceeds the weight part, there is a possibility that the rust preventive property may decrease.
本発明になる水性防錆塗料は、鉄筋やラス網を塗料中に
ディッピングさせて塗装する。The water-based anticorrosive paint according to the present invention is applied by dipping a reinforcing bar or lath net in the paint.
まず下塗を塗装後、120℃で20分の強制乾燥を行い乾燥
膜厚で約20μの塗膜を付けた後、上塗を塗装して、120
℃で20分の強制乾燥を行い乾燥膜厚で約100μの塗膜を
形成する。First, after applying the undercoat, forcibly dry for 20 minutes at 120 ° C to apply a coating film with a dry film thickness of about 20μ, then apply the topcoat and
Forced drying is performed at ℃ for 20 minutes to form a coating film with a dry film thickness of about 100μ.
こうして本発明になる水性防錆塗料を塗装済みの鉄筋
に、コンクリートを打設し高温高圧によるオートクレー
ブ養生により、防錆性能が高くコンクリートとの付着力
の強力な鉄筋入りの気泡コンクリート製品が出来上が
る。In this way, concrete is cast on the reinforcing bar which has been coated with the water-based anticorrosive paint of the present invention, and autoclave curing is carried out at high temperature and high pressure, whereby a reinforced concrete aerated concrete product having a strong rust preventive property and a strong adhesion to concrete is completed.
以下に実施例を挙げ本発明のより詳細な理解に供する。
当然のことながら本発明は以下の実施例のみに限定され
るものではない。Examples will be given below to provide a more detailed understanding of the present invention.
Naturally, the invention is not limited to the following examples.
なお、配合例に使用される部数は全て「重量部」であ
る。All parts used in the formulation examples are "parts by weight".
実施例１ 下塗塗料（１）として、 スチレン−アクリル共重合体エマルジョン 100部 炭酸カルシウム ５部 水性防錆顔料 ５部 添加剤 １部 以上を高速攪拌機にて分散塗料化した。Example 1 As the undercoat paint (1), styrene-acrylic copolymer emulsion 100 parts, calcium carbonate 5 parts, water-based rust preventive pigment 5 parts, additive 1 part The above components were dispersed into a coating material with a high-speed stirrer.
上塗塗料として、 スチレン−アクリル共重合体エマルジョン 100部 硅石粉末 50部 消石灰 50部 添加剤 １部 以上を高速攪拌機にて分散塗料化した。As a top coating, a styrene-acrylic copolymer emulsion 100 parts, silica powder 50 parts, slaked lime 50 parts, additives 1 part or more were dispersed into a coating material by a high-speed stirrer.
下塗塗料をディッピングにて鋼板に塗装した後、120℃
で20分の強制乾燥を行った。次に、上塗塗料をディッピ
ングにて鋼板に塗装した後、120℃で20分の強制乾燥を
行い、120μの塗膜と成した。120 ° C after coating the undercoat paint on the steel plate by dipping
Then, forced drying was performed for 20 minutes. Next, the top coat was applied to the steel sheet by dipping, and then forced drying was performed at 120 ° C. for 20 minutes to form a 120 μ coating film.
実施例２ 下塗塗料（２）として スチレン−アクリル共重合体エマルジョン 100部 水性防錆剤 ５部 添加剤 １部 以上を高速攪拌機にて分散塗料化した。Example 2 As the undercoat paint (2), a styrene-acrylic copolymer emulsion 100 parts, an aqueous rust preventive agent 5 parts, an additive 1 part The above components were dispersed into a paint by a high-speed stirrer.
下塗塗料（２）をディッピングにて鋼板に塗装した後、
120℃で20分の強制乾燥を行った。次に、実施例１の上
塗塗料をディッピングにて鋼板に塗装した後、120℃で2
0分の強制乾燥を行い、120μの塗膜と成した。After applying the undercoat paint (2) to the steel plate by dipping,
Forced drying was performed at 120 ° C. for 20 minutes. Next, after coating the steel sheet with the top coating composition of Example 1 by dipping,
Forced drying was carried out for 0 minutes to form a 120 μ coating film.
実施例３ 下塗塗料（３）として スチレン−アクリル共重合体エマルジョン 70部 水溶性エポキシ樹脂 30部 炭酸カルシウム ５部 水性防錆顔料 ５部 添加剤 １部 以上を高速攪拌機にて分散塗料化した。Example 3 Undercoat paint (3) Styrene-acrylic copolymer emulsion 70 parts Water-soluble epoxy resin 30 parts Calcium carbonate 5 parts Water-based rust preventive pigment 5 parts Additives 1 part The above was made into a dispersion paint with a high-speed stirrer.
下塗塗料（３）をディッピングにて鋼板に塗装した後、
120℃で20分の強制乾燥を行った。次に、実施例１の上
塗塗料をディッピングにて鋼板に塗装した後、120℃で2
0分の強制乾燥を行い、120μの塗膜と成した。After applying the undercoat paint (3) to the steel plate by dipping,
Forced drying was performed at 120 ° C. for 20 minutes. Next, after coating the steel sheet with the top coating composition of Example 1 by dipping,
Forced drying was carried out for 0 minutes to form a 120 μ coating film.
比較例 スチレン−アクリル共重合体エマルジョン 70部 アスファルト系エマルジョン 30部 硅石粉末 35部 消石灰 35部 水性防錆顔料 30部 添加剤 ５部 以上を高速攪拌機にて分散塗料化した。Comparative Example Styrene-acrylic copolymer emulsion 70 parts Asphalt emulsion 30 parts Silica powder 35 parts Slaked lime 35 parts Water-based rust preventive pigment 30 parts Additives 5 parts A dispersion paint was prepared by using a high-speed stirrer.
この塗料をディッピングにて鋼板に塗装した後、120℃
で20分の強制乾燥を行い、300μの塗膜と成した。After coating this paint on the steel plate by dipping, 120 ℃
The film was forcibly dried for 20 minutes to form a 300μ coating film.
試験方法 実施例１〜３と比較例の各塗装鋼板を、コンクリート中
に埋め込み、高温高圧蒸気養生を行い気泡コンクリート
と成した。Test Method Each of the coated steel sheets of Examples 1 to 3 and Comparative Example was embedded in concrete and subjected to high temperature and high pressure steam curing to form aerated concrete.
次に、各塗装鋼板に付着しているコンクリートを取り除
き、露出した塗装鋼板に対し、耐塩水噴霧性試験を行っ
た。Next, the concrete adhering to each coated steel sheet was removed, and the exposed coated steel sheet was subjected to a salt water spray resistance test.
結果 〔発明の効果〕 本発明になる気泡コンクリート製品鉄筋用水性防錆塗料
は、単層系の水性防錆剤に比較して、乾燥総合膜厚で薄
いにもかかわらず、高い防錆性能を有していることが明
らかとなった。すなわち、同一の乾燥膜厚で比較した場
合、比較例になる単層系の水性防錆剤よりはるかに高い
防錆性能を有していると判断される。result [Effects of the Invention] The water-based anticorrosive paint for aerated concrete products rebar according to the present invention has a high anticorrosive performance in spite of being thin in dry total film thickness, as compared with a single-layer water-based anticorrosive agent. It became clear. That is, when compared with the same dry film thickness, it is judged to have much higher rust preventive performance than the single-layer water-based rust preventive agent of Comparative Example.
このことは、別の観点より見ると、実施例になる防錆塗
料は比較例になる単層系の水性防錆剤の数分の１の膜厚
で同一の防錆性能を顕現し得るため、それだけ塗料の消
費の節約となり、コストダウンに寄与することができ
る。This means that, from another point of view, the rust preventive paints of Examples can exhibit the same rust preventive performance with a film thickness of a fraction of that of the single-layer water-based rust preventives of Comparative Examples. Therefore, the consumption of paint can be saved and the cost can be reduced.
また、本発明になる防錆塗料は水性であるため、いかな
る場所でも安全に使用出来る。Further, since the anticorrosive paint of the present invention is water-based, it can be safely used in any place.
単層系の水性防錆剤に比較して薄膜で使用できるという
ことは、「軽量」を特徴点の１つとしている建築材料で
ある、軽量気泡コンクリートパネルの、より一層の軽量
化に寄与出来るということになる。The fact that it can be used as a thin film compared to a single-layer type water-based rust preventive agent can contribute to a further reduction in the weight of lightweight cellular concrete panels, which is a building material that is characterized by "light weight". It turns out that.
このように本発明になる水性防錆塗料は数多くの特長点
を有していることが判明した。As described above, it was revealed that the water-based anticorrosive coating material according to the present invention has many features.
Claims (1)
て、下塗は、有機固形分30重量部以上60重量部以下のス
チレン−アクリル共重合体エマルジョン100重量部以上6
0重量部以下に対し、顔料40重量部以下を配合し、上塗
は、有機固形分30重量部以上60重量部以下のスチレン−
アクリル共重合体エマルジョン、若しくはスチレン共重
合体ラテックス70重量部以上30重量部以下に対し、シリ
カ系顔料、カルシウム系顔料を含む顔料30重量部以上70
重量部以下を配合してなることを特徴とする気泡コンク
リート製品鉄筋用水性防錆塗料。1. A multi-layer water-based rust preventive coating composition comprising a base coat and a top coat, wherein the base coat comprises 100 to 6 parts by weight of a styrene-acrylic copolymer emulsion having an organic solid content of 30 to 60 parts by weight.
To 0 parts by weight or less, 40 parts by weight or less of a pigment is blended, and the top coat is made of styrene having an organic solid content of 30 parts by weight or more and 60 parts by weight or less.
Acrylic copolymer emulsion or styrene copolymer latex 70 parts by weight or more and 30 parts by weight or less, whereas silica-based pigments, pigments containing calcium-based pigments 30 parts by weight or more 70
Aqueous rust preventive paint for aerated concrete products, which is characterized by containing less than or equal to parts by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9296289A JPH0694023B2 (en) | 1989-04-14 | 1989-04-14 | Aerated concrete products Water-based anticorrosive paint for reinforcing bars |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9296289A JPH0694023B2 (en) | 1989-04-14 | 1989-04-14 | Aerated concrete products Water-based anticorrosive paint for reinforcing bars |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02272070A JPH02272070A (en) | 1990-11-06 |
| JPH0694023B2 true JPH0694023B2 (en) | 1994-11-24 |
Family
ID=14069059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9296289A Expired - Fee Related JPH0694023B2 (en) | 1989-04-14 | 1989-04-14 | Aerated concrete products Water-based anticorrosive paint for reinforcing bars |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0694023B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0688260A (en) * | 1992-09-04 | 1994-03-29 | Asahi Chem Ind Co Ltd | Rust preventing method for alc reinforcing bar or the like |
| JP5646375B2 (en) * | 2011-03-10 | 2014-12-24 | クリオン株式会社 | Method for producing buried metal fitting and lightweight cellular concrete panel |
| JP6514850B2 (en) * | 2014-03-05 | 2019-05-15 | 日本化学塗料株式会社 | Water-based anticorrosion coated metal products |
-
1989
- 1989-04-14 JP JP9296289A patent/JPH0694023B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02272070A (en) | 1990-11-06 |
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| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |