JPH0826286B2 - Wet color preventing coating composition and finishing method - Google Patents
Wet color preventing coating composition and finishing methodInfo
- Publication number
- JPH0826286B2 JPH0826286B2 JP33420588A JP33420588A JPH0826286B2 JP H0826286 B2 JPH0826286 B2 JP H0826286B2 JP 33420588 A JP33420588 A JP 33420588A JP 33420588 A JP33420588 A JP 33420588A JP H0826286 B2 JPH0826286 B2 JP H0826286B2
- Authority
- JP
- Japan
- Prior art keywords
- group
- coating composition
- wet color
- carbon atoms
- alkyl group
- 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 - Lifetime
Links
- 238000000034 method Methods 0.000 title claims description 14
- 239000008199 coating composition Substances 0.000 title claims description 6
- 125000000217 alkyl group Chemical group 0.000 claims description 8
- 125000004432 carbon atom Chemical group C* 0.000 claims description 8
- 239000004566 building material Substances 0.000 claims description 6
- 239000011230 binding agent Substances 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 4
- 229920005749 polyurethane resin Polymers 0.000 claims description 3
- 125000003808 silyl group Chemical group [H][Si]([H])([H])[*] 0.000 claims description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 2
- 125000003710 aryl alkyl group Chemical group 0.000 claims description 2
- 125000003118 aryl group Chemical group 0.000 claims description 2
- 229910052739 hydrogen Inorganic materials 0.000 claims description 2
- 239000001257 hydrogen Substances 0.000 claims description 2
- 239000011248 coating agent Substances 0.000 description 19
- 238000000576 coating method Methods 0.000 description 19
- 239000000463 material Substances 0.000 description 14
- 239000000758 substrate Substances 0.000 description 11
- 239000003973 paint Substances 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 238000012360 testing method Methods 0.000 description 8
- 239000000203 mixture Substances 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- 239000000839 emulsion Substances 0.000 description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 4
- 229920003002 synthetic resin Polymers 0.000 description 4
- 239000000057 synthetic resin Substances 0.000 description 4
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000007654 immersion Methods 0.000 description 3
- 150000003961 organosilicon compounds Chemical class 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- 239000000049 pigment Substances 0.000 description 3
- -1 that is Substances 0.000 description 3
- 229920002554 vinyl polymer Polymers 0.000 description 3
- 239000004641 Diallyl-phthalate Substances 0.000 description 2
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 2
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- BFXIKLCIZHOAAZ-UHFFFAOYSA-N methyltrimethoxysilane Chemical compound CO[Si](C)(OC)OC BFXIKLCIZHOAAZ-UHFFFAOYSA-N 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 239000005871 repellent Substances 0.000 description 2
- 229920002050 silicone resin Polymers 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- CPUDPFPXCZDNGI-UHFFFAOYSA-N triethoxy(methyl)silane Chemical compound CCO[Si](C)(OCC)OCC CPUDPFPXCZDNGI-UHFFFAOYSA-N 0.000 description 2
- 238000009736 wetting Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229920000298 Cellophane Polymers 0.000 description 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000003377 acid catalyst Substances 0.000 description 1
- 239000000378 calcium silicate Substances 0.000 description 1
- 229910052918 calcium silicate Inorganic materials 0.000 description 1
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000008119 colloidal silica Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- KQAHMVLQCSALSX-UHFFFAOYSA-N decyl(trimethoxy)silane Chemical compound CCCCCCCCCC[Si](OC)(OC)OC KQAHMVLQCSALSX-UHFFFAOYSA-N 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229920002313 fluoropolymer Polymers 0.000 description 1
- 239000004811 fluoropolymer Substances 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000004123 n-propyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 230000003204 osmotic effect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000002940 repellent Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 125000005372 silanol group Chemical group 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- JCVQKRGIASEUKR-UHFFFAOYSA-N triethoxy(phenyl)silane Chemical compound CCO[Si](OCC)(OCC)C1=CC=CC=C1 JCVQKRGIASEUKR-UHFFFAOYSA-N 0.000 description 1
- XYJRNCYWTVGEEG-UHFFFAOYSA-N trimethoxy(2-methylpropyl)silane Chemical compound CO[Si](OC)(OC)CC(C)C XYJRNCYWTVGEEG-UHFFFAOYSA-N 0.000 description 1
- ZNOCGWVLWPVKAO-UHFFFAOYSA-N trimethoxy(phenyl)silane Chemical compound CO[Si](OC)(OC)C1=CC=CC=C1 ZNOCGWVLWPVKAO-UHFFFAOYSA-N 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Landscapes
- Application Of Or Painting With Fluid Materials (AREA)
- Paints Or Removers (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は、多孔質基材に塗料を塗付した時に、基材表
面における屈折率の変化により、基材が濡れたような色
になることを防止する塗料組成物とその施工方法に関す
るものである。DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention shows that when a coating material is applied to a porous substrate, the substrate has a wet color due to a change in the refractive index on the substrate surface. The present invention relates to a coating composition for preventing such a problem and a method for constructing the same.
（従来技術） 従来、多孔質基材、即ちコンクリート、モルタル、石
膏ボード、ケイ酸カルシウム板、セメント及びプラスタ
ー類等に各種の塗料を用いて塗装が行われている。(Prior Art) Conventionally, coating is performed using various paints on a porous substrate, that is, concrete, mortar, gypsum board, calcium silicate board, cement, plasters and the like.
これらは、顔料を含み実質的に隠ぺい性を有する塗膜
による各種色彩仕上げと、顔料を極少量含むか全く含ま
ず、実質的に透明性を有する塗膜を形成し、基材の素材
感を生かす仕上げに大別される。These are various color finishes with a coating film that contains a pigment and have a substantial hiding property, and a coating film that has a substantially transparent property with a very small amount of pigment or does not contain pigment at all, forming a base material texture. It is roughly divided into finishes that make the most of it.
ここで後者の仕上げに用いられる方法としては、ア
クリル系、ウレタン系、ビニル系、フッ素系等々の溶剤
可溶型合成樹脂の透明性塗料を用いる方法。前述に
示した如き各種合成樹脂のエマルションタイプを用いる
方法。下塗にのエマルションタイプを用い、上塗に
の合成樹脂の透明性塗料を用いる方法。コロイド状
シリカまたはケイ酸塩水溶液単独またはエマルションを
ブレンドした処理液を下塗りとし、同系の塗料を上塗り
として、建材に塗装する方法等が知られている。As the method used for the latter finishing, a transparent coating material of a solvent-soluble synthetic resin such as acrylic, urethane, vinyl, or fluorine is used. A method using an emulsion type of various synthetic resins as described above. A method in which an emulsion type is used as the undercoat and a transparent synthetic resin paint is used as the overcoat. There is known a method of coating a building material with a treatment liquid prepared by mixing colloidal silica or an aqueous silicate solution alone or a blend of emulsions as an undercoat, and a paint of the same system as an overcoat.
ここで、の場合、塗料を塗付すると基材の表面が濡
れた様に変色し、塗料自身の色彩を表すことができず鮮
やかさや基材の素材感が失われる。のエマルション
タイプを用いる場合、に比べ濡れ色の程度はやや優れ
るものの、耐候性、密着性等に問題がある。の場合、
素地を濡れ色にさせる程度は小さいが、上塗りに溶剤型
塗料を用いた場合は下塗りを濡れ色にするとともに耐水
性、付着性に劣る。In this case, when the coating material is applied, the surface of the base material is discolored as if it is wet, and the color of the coating material cannot be expressed, so that the vividness and texture of the base material are lost. In the case of using the emulsion type, although the degree of wet color is slightly superior to that of the emulsion type, there are problems in weather resistance, adhesion and the like. in the case of,
Although the base is wetted to a small extent, when a solvent-based paint is used for the topcoat, the undercoat is wetted and water resistance and adhesion are poor.
この様に、従来のものは種々問題点があるのが現状で
ある。In this way, the conventional ones have various problems at present.
これらを解決するために特開昭62-277182号公報に
は、多孔性無機質建材の表面に、一般式〔Ｄ〕： で示される有機珪素化合物および（または）その低縮合
物と、一般式〔Ｅ〕： で示される有機珪素化合物および（または）その低縮合
物からなる混合物を酸触媒の存在下で加水分解した後、
アルカリ物質を用いてそのpHを７以上として縮合せしめ
てなる分子末端にシラノール基を有しない有機珪素高縮
合物をバインダー成分とする浸透型無機質系塗料を下塗
りにし、その上にフッ素樹脂系高重合物および（また
は）ポリウレタン樹脂をバインダー成分とする上塗り塗
料を塗付して発色せしめることを特徴とする多孔性無機
質建材の多層発色方法が示されている。In order to solve these problems, Japanese Patent Laid-Open No. 62-277182 discloses that on the surface of a porous inorganic building material, a general formula [D]: With an organosilicon compound represented by and / or a low condensate thereof, and a compound represented by the general formula [E]: After hydrolyzing a mixture of an organosilicon compound represented by and a low condensate thereof in the presence of an acid catalyst,
A permeation-type inorganic coating containing a binder component of a high-condensation organosilicon compound that has no silanol groups at the molecular end formed by condensation with an alkaline substance at a pH of 7 or higher is used as the undercoat, and a fluoropolymer high-polymerization is applied on top of it. There is disclosed a multi-layer color developing method for a porous inorganic building material, which comprises applying an overcoat paint containing an object and / or a polyurethane resin as a binder component for color development.
（発明が解決しようとする問題点） しかしながら、特開昭62-277182号公報の方法による
と下塗りの段階ではある程度の効果があるが上塗りで仕
上げた時は濡れ色になってしまう場合があった。これ
は、特開昭62-277182号公報の組成物の造膜性が不良の
ため、基材への浸透硬化は良好なるも、続く上塗り塗料
の浸透による濡れ色を防ぐ程には至っていないものと推
察される。(Problems to be Solved by the Invention) However, according to the method of Japanese Patent Laid-Open No. 62-277182, there is a certain effect at the stage of undercoating, but there is a case where it becomes a wet color when finished with topcoating. . This is because the composition of JP-A-62-277182 has a poor film-forming property, and thus the osmotic curing to the base material is good, but it is not enough to prevent the wet color due to the subsequent penetration of the topcoat paint. It is presumed that.
本発明は、これらの問題を解決し下塗りのみならず上
塗り材で仕上げても濡れ色にならない多孔質基材の下塗
り材と、その仕上げ方法に関するものである。The present invention relates to an undercoating material for a porous substrate which solves these problems and does not give a wet color when finished with an overcoating material as well as an undercoating material, and a finishing method therefor.
（問題点を解決するための方法） 本発明では、上記のような問題点を解決するために、
多孔質建材の表面に、一般式〔Ｉ〕： （ただし、Ｘは加水分解性基、R1、R2は水素または炭素
数１〜10のアルキル基、アリール基、アラルキル基、ｎ
は１、２、３の整数である） で示される加水分解性シリル基を１分子中に少なくとも
１個有する重量平均分子量300〜60000のオリゴマーまた
はプレポリマー〔Ａ〕と、 一般式〔Ｂ〕 Si(OR)4 ……〔Ｂ〕 （但し、Ｒは炭素数１〜８のアルキル基） および／または、一般式〔Ｃ〕 Ｒ′Si(OR)3 ……〔Ｃ〕 （但し、Ｒ′は炭素数１〜12のアルキル基、またはフェ
ニル基Ｒは炭素数１〜８のアルキル基、またはフェニル
基） で示される有機化合物の加水分解物とを混合して下塗り
として塗付し、その上にフッ素樹脂またはポリウレタン
樹脂または〔Ａ〕をバインダー成分とする上塗り塗料を
塗付した。(Method for Solving Problems) In the present invention, in order to solve the above problems,
On the surface of the porous building material, the general formula [I]: (However, X is a hydrolyzable group, R 1 and R 2 are hydrogen or an alkyl group having 1 to 10 carbon atoms, an aryl group, an aralkyl group, n
Is an integer of 1, 2, or 3) and an oligomer or prepolymer [A] having a weight average molecular weight of 300 to 60,000 having at least one hydrolyzable silyl group in one molecule, and a general formula [B] Si (OR) 4 ... [B] (where R is an alkyl group having 1 to 8 carbon atoms) and / or the general formula [C] R'Si (OR) 3 ... [C] (where R'is An alkyl group having 1 to 12 carbon atoms, or a phenyl group R is an alkyl group having 1 to 8 carbon atoms, or a phenyl group) is mixed with a hydrolyzate of an organic compound, and applied as an undercoat, and then applied. A topcoat paint containing a fluororesin or polyurethane resin or [A] as a binder component was applied.
とりわけ〔Ａ〕／（〔Ｂ〕＋〔Ｃ〕）が7/3〜2/8の場
合、それら塗料組成物を下塗りに用いた時、最も濡れ色
になりにくいことが判明した。In particular, when [A] / ([B] + [C]) was 7/3 to 2/8, it was found that when these coating compositions were used as the undercoat, the wet color was the least likely to occur.
次に、本発明において用いられる加水分解性シリル基
を１分子中に少なくとも１個有するオリゴマーまたはプ
レポリマー〔Ａ〕としては、ポリエステル、ビニル系重
合体、ジアリルフタレート化合物、ジアリルフタレート
系共重合体の１種または、２種以上の混合物、NCO末端
ウレタンプレポリマーが上げられる。これらは、特開昭
56-34704、特開昭60-231722の方法で重合可能である。
また、これらのうち最も好ましいものは、ビニル系重合
体である。Next, the oligomer or prepolymer [A] having at least one hydrolyzable silyl group in one molecule used in the present invention includes polyester, vinyl polymer, diallyl phthalate compound and diallyl phthalate copolymer. One or a mixture of two or more, NCO-terminated urethane prepolymers may be mentioned. These are
Polymerization is possible by the method of 56-34704 and JP-A-60-231722.
The most preferable of these is a vinyl polymer.
一方、〔Ｂ〕としては、オルトメチルシリケート、オ
ルトエチルシリケート、オルトｎ−プロピルシリケー
ト、オルトｎ−ブチルシリケート、オルト２−メトキシ
エチルシリケートおよびそれらの縮合体がある。これら
のうち最も好ましいものは、オルトエチルシリケートお
よびその縮合物である。On the other hand, as [B], there are orthomethyl silicate, orthoethyl silicate, ortho n-propyl silicate, ortho n-butyl silicate, ortho 2-methoxyethyl silicate and their condensates. Most preferred of these are orthoethyl silicate and its condensates.
さらに、〔Ｃ〕としては、メチルトリメトキシシラ
ン、メチルトリエトキシシラン、フェニルトリメトキシ
シラン、フェニルトリエトキシシラン、イソブチルトリ
メトキシシラン、デシルトリメトキシシランがある。こ
のうち好ましいものは、メチルトリメトキシシラン、メ
チルトリエトキシシランである。Further, as [C], there are methyltrimethoxysilane, methyltriethoxysilane, phenyltrimethoxysilane, phenyltriethoxysilane, isobutyltrimethoxysilane, and decyltrimethoxysilane. Of these, preferred are methyltrimethoxysilane and methyltriethoxysilane.
ここで、本発明に用いる〔Ｂ〕および〔Ｃ〕の加水分
解物は、〔Ｂ〕および〔Ｃ〕にそれぞれ、1Nの塩酸を触
媒として0.5〜２％添加混合することで作製した。Here, the hydrolysates [B] and [C] used in the present invention were prepared by adding and mixing 0.5 to 2% of [B] and [C] with 1N hydrochloric acid as a catalyst.
（作用） 本発明組成物を多孔質基材に塗付した時、成分
〔Ｂ〕、〔Ｃ〕は多孔質基材中に浸透し、基材中の水分
と反応して硬化しつつも、その官能基の一部は、成分
〔Ａ〕と架橋することになる。成分〔Ａ〕は、主鎖が炭
素鎖であり、このとき形成される塗膜は、基材面におい
て平面的には、耐候性等に優れる合成樹脂塗膜と同様に
なっており、基材内部に向かってはシロキサン結合によ
り架橋した樹脂が硬化し、封孔されているものと思われ
る。本発明者らは、このような塗膜構造の時さらに上塗
り塗料を塗付しても濡れ色に成らないと予測し、さらに
鋭意研究の結果、〔Ａ〕成分の重量平均分子量が300〜6
0000であり、〔Ａ〕成分と〔Ｂ〕＋〔Ｃ〕成分の比率が
7/3〜2/8のとき、このような効果が著しいことを発見し
た。本発明者らは、このように特定の成分比率において
濡れ色が防止できるのは、濡れ色の原因に塗膜と空気層
との屈折率の違いに起因し、本発明における組成物では
〔Ａ〕、〔Ｂ〕、〔Ｃ〕成分よりなる高分子量の塗膜
と、一部基材中の水分により硬化する比較的低分子量の
〔Ｂ〕、〔Ｃ〕成分が存在するが故に濡れ色となる屈折
率の条件を外れている為ではないかと推察している。(Function) When the composition of the present invention is applied to a porous substrate, the components [B] and [C] penetrate into the porous substrate and react with moisture in the substrate to cure, A part of the functional group will be crosslinked with the component [A]. In the component [A], the main chain is a carbon chain, and the coating film formed at this time is the same as a synthetic resin coating film excellent in weather resistance and the like in plan view on the substrate surface. It is considered that the resin cross-linked by the siloxane bond was cured toward the inside and the pores were sealed. The inventors of the present invention have predicted that a wet color will not be formed even when a topcoat paint is applied in such a coating film structure. Further, as a result of earnest research, the weight average molecular weight of the component (A) is 300 to 6
0000, and the ratio of the [A] component and the [B] + [C] component is
It was discovered that such effect was remarkable when 7/3 to 2/8. The inventors of the present invention can prevent the wetting color at a specific component ratio as described above because the difference in the refractive index between the coating film and the air layer is the cause of the wetting color. ], [B], [C] components having a high molecular weight, and a relatively low molecular weight [B], [C] component that is partially cured by the moisture in the substrate are present. It is speculated that it may be because the condition of the refractive index is not satisfied.
（実施例１） ●試験体の作成方法 １）下塗 アクリルシリコーン樹脂（YC-3623,鐘淵化学（株）
製）66.7重量部に対し、エチルシリケート加水分解物
（エチルシリケート加水分解物100重量部に対して1Nの
塩酸を１重量部添加したもの）33.3重量部を撹拌しなが
ら混入したものを、スプレーまたは刷毛塗りにてフレキ
シブルボードに塗装した。(Example 1) ● Method for preparing test piece 1) Undercoat acrylic silicone resin (YC-3623, Kanebuchi Chemical Co., Ltd.)
Made by mixing 63.3 parts by weight of ethyl silicate hydrolyzate (adding 1 part by weight of 1N hydrochloric acid to 100 parts by weight of ethyl silicate hydrolyzate) with stirring while spraying or A flexible board was painted with a brush.
２）上塗り 下塗りを塗装した後、８時間、20℃にて乾燥しアクリ
ルシリコーン樹脂塗料をスプレーにて塗装した。2) Topcoat After applying the basecoat, it was dried at 20 ° C for 8 hours and then sprayed with an acrylic silicone resin paint.
３）養生 上塗り塗装後１週間、20℃にて養生を行う。3) Curing Curing is carried out at 20 ° C for 1 week after the top coating.
実施例２〜12、比較例１〜６は表−１〜表−２の配合比
によって混合し、実施例１と同様に塗装した。Examples 2 to 12 and Comparative Examples 1 to 6 were mixed according to the compounding ratios shown in Table-1 and Table-2, and coated in the same manner as in Example 1.
比較例７、９は浸透性撥水材（イ）、（ハ）を100重量
部刷毛塗りにてフレキシブルボードに塗付後、上塗りは
実施例１と同様に塗付した。In Comparative Examples 7 and 9, 100% by weight of the penetrable water repellent materials (a) and (c) were applied to the flexible board by brush coating, and then the top coat was applied in the same manner as in Example 1.
比較例８は浸透性撥水材（ロ）２液タイプ、99重量部に
たいして１重量部の硬化材を添加混合した後、実施例１
と同様に上塗りを塗付した。Comparative Example 8 is a penetrating water-repellent material (b) two-liquid type, 1 part by weight of a hardening material was added and mixed with respect to 99 parts by weight, and then,
A top coat was applied in the same manner as in.
●試験方法 上記のごとく作成した試験体を用いて以下のように試験
を行った。● Test method The test was conducted as follows using the test specimen prepared as described above.
標準密着…JIS K 5400 6.15碁盤目試験ののち塗膜にセ
ロテープを貼り、引き剥がした後残っている碁盤目数を
数え、次のように表した。Standard adhesion ... JIS K 5400 6.15 After a grid pattern test, a cellophane tape was attached to the coating film, and the number of grid patterns remaining after peeling off was counted and expressed as follows.
（残った碁盤目数）／（碁盤目総数） 温水浸漬後密着…50℃の温水に48H浸漬した後、標準密
着と同様の試験を行った。(Number of cross-cuts remaining) / (total number of cross-cuts) Adhesion after hot water immersion ... After dipping in hot water at 50 ° C. for 48H, the same test as standard adhesion was performed.
温冷サイクル後…−20℃で3H、50℃で3H、20℃の水で18
Hを１サイクルとして10サイクル後標準密着と同様の試
験を行った。After warm-cooling cycle: -20 ℃ for 3H, 50 ℃ for 3H, 20 ℃ for water 18
After 10 cycles with H as one cycle, the same test as the standard adhesion was performed.
水浸後…20℃の水に１週間浸漬後、標準密着と同様の試
験を行った。After immersion in water ... After immersion in water at 20 ° C. for 1 week, the same test as the standard adhesion was conducted.
耐溶剤性…塗膜にキシレンを滴下して浸透性を確認し
た。（下塗りのみで確認） 透水性…塗膜に水を滴下して浸透性を確認した。（下塗
りのみで確認） 上塗り適性…上塗りを塗付した時の上塗りの造膜性 グレースケール…JIS L 0804の変退色用グレースケール
にて上塗を塗付した面となにも塗付しない面で色調の変
化を色差で表した。Solvent resistance: Xylene was dropped on the coating film to confirm the permeability. (Confirmed only by undercoating) Water permeability: Water was dropped on the coating film to check the permeability. (Check only with undercoat) Topcoat suitability ... Topcoat film-forming property when topcoat is applied Grayscale ... With surface to which topcoat is applied and surface to which nothing is applied with gray scale for discoloration of JIS L 0804 The change in color tone is represented by the color difference.
上の試験結果を表−３〜表−４に示す。 The above test results are shown in Tables 3 to 4.
（効果） 実施例および比較例より明白なように、本発明組成物
を塗付した多孔質基材は、各種の塗膜性能試験において
優秀な結果を示すとともに、JIS L 0804の変退色用グレ
ースケールによって、上塗りまで塗付した面と、なにも
塗付しない面での色差も比較例に対して優れた値を示し
た。(Effect) As is clear from the examples and comparative examples, the porous substrate coated with the composition of the present invention shows excellent results in various coating film performance tests, and also has a gray scale for graying according to JIS L 0804. Depending on the scale, the color difference between the surface to which the top coat was applied and the surface to which nothing was applied also showed excellent values compared to the comparative examples.
Claims (4)
数１〜10のアルキル基、アリール基、アラルキル基、ｎ
は１、２、３の整数である） で示される加水分解性シリル基を１分子中に少なくとも
１個有する重量平均分子量300〜60000のオリゴマーまた
はプレポリマー〔Ａ〕と、 一般式〔Ｂ〕 Si(OR)4 ……〔Ｂ〕 （但し、Ｒは炭素数１〜８のアルキル基） および／または、一般式〔Ｃ〕 Ｒ′Si(OR)3 ……〔Ｃ〕 （但し、Ｒ′は炭素数１〜12のアルキル基、またはフェ
ニル基Ｒは炭素数１〜８のアルキル基、またはフェニル
基） で示される有機化合物の加水分解物とを混合してなる濡
れ色防止用塗料組成物。1. A general formula [I] (However, X is a hydrolyzable group, R 1 and R 2 are hydrogen or an alkyl group having 1 to 10 carbon atoms, an aryl group, an aralkyl group, n
Is an integer of 1, 2, or 3) and an oligomer or prepolymer [A] having a weight average molecular weight of 300 to 60,000 having at least one hydrolyzable silyl group in one molecule, and a general formula [B] Si (OR) 4 ... [B] (where R is an alkyl group having 1 to 8 carbon atoms) and / or the general formula [C] R'Si (OR) 3 ... [C] (where R'is An alkyl group having 1 to 12 carbon atoms, or a phenyl group R is an alkyl group having 1 to 8 carbon atoms, or a phenyl group).
混合比である請求項第１項記載の濡れ色防止用塗料組成
物。2. The coating composition for preventing wet color according to claim 1, wherein [A] / ([B] + [C]) has a mixing ratio of 7/3 to 2/8.
成物を下塗りにし、その上にフッ素樹脂またはポリウレ
タン樹脂または〔Ａ〕をバインダー成分とする上塗り塗
料を塗付することを特徴とする多孔性無機質建材の仕上
げ方法。3. A wet color preventing coating composition according to claim 1 as an undercoat, and a fluororesin or polyurethane resin or an overcoat containing [A] as a binder component is applied thereon. Finishing method for porous inorganic building materials.
物を下塗りに用いた請求項第３項記載の多孔性無機質建
材の仕上げ方法。4. A method for finishing a porous inorganic building material according to claim 3, wherein the wet color preventing coating composition according to claim 2 is used as an undercoat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33420588A JPH0826286B2 (en) | 1988-12-27 | 1988-12-27 | Wet color preventing coating composition and finishing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33420588A JPH0826286B2 (en) | 1988-12-27 | 1988-12-27 | Wet color preventing coating composition and finishing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02173174A JPH02173174A (en) | 1990-07-04 |
| JPH0826286B2 true JPH0826286B2 (en) | 1996-03-13 |
Family
ID=18274718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33420588A Expired - Lifetime JPH0826286B2 (en) | 1988-12-27 | 1988-12-27 | Wet color preventing coating composition and finishing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0826286B2 (en) |
-
1988
- 1988-12-27 JP JP33420588A patent/JPH0826286B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02173174A (en) | 1990-07-04 |
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