WO2000007960A1 - Produit d'isolation aqueux pour substrat inorganique poreux et procede d'enduction en ligne - Google Patents

Produit d'isolation aqueux pour substrat inorganique poreux et procede d'enduction en ligne Download PDF

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Publication number
WO2000007960A1
WO2000007960A1 PCT/JP1999/004231 JP9904231W WO0007960A1 WO 2000007960 A1 WO2000007960 A1 WO 2000007960A1 JP 9904231 W JP9904231 W JP 9904231W WO 0007960 A1 WO0007960 A1 WO 0007960A1
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Prior art keywords
compound
aqueous
weight
sealer
group
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PCT/JP1999/004231
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English (en)
Japanese (ja)
Inventor
Yuuichi Inada
Kazuo Nomoto
Masaaki Shinohara
Hiroe Yamanaka
Mineyuki Nomura
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Kansai Paint Co Ltd
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Kansai Paint Co Ltd
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Priority to JP2000563595A priority Critical patent/JP4420563B2/ja
Publication of WO2000007960A1 publication Critical patent/WO2000007960A1/fr
Anticipated expiration legal-status Critical
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    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
    • C04B41/46—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with organic materials
    • C04B41/48—Macromolecular compounds

Definitions

  • the present invention relates to a novel aqueous sealer for an inorganic porous substrate and an inline coating method using the same.
  • inorganic materials such as cement, concrete, mortar, etc. have been formed into plate-like shapes as outer wall materials for buildings, and then primary cured as necessary.
  • the above-mentioned in-line sealer has resistance to frost damage, weather resistance, flaw proofness, adhesion between the base material and the second sealer coating film or top coat film, and protection. It is required to have excellent performance such as inferiority.
  • aqueous in-line fillers include aqueous solutions of fumaric acid, silane-modified acrylic polymer emulsions, and vinyl chloride resin emulsions.
  • Japanese Patent Application Laid-Open Nos. 8-18864, Hei 9-75842 Japanese Patent Application Laid-Open Nos. 8-18864, Hei 9-75842
  • the aqueous solution of humic acid and the silane-modified acrylic polymer emulsion adhere to the second-coating film and the overcoating film. There was a drawback that it was inferior in nature.
  • polyvinyl chloride resin emulsions have drawbacks such as difficulties in handling because the substrates adhere to each other and block during autoclaving. was there.
  • an inline filler is applied to the surface of the inorganic porous base material, dried, and then subjected to autocure curing.In the coating process, a vinyl chloride resin emulsion is applied.
  • the penetration into the inorganic porous base material is not sufficient, and the Al force eluted from the inside of the base material during auto-crepe treatment.
  • the blocking resistance of the base material is reduced due to the hydrolysis of the coating film by the repellent substance.
  • the performance of the paint film coated with the overcoat was poor, such as water resistance?
  • An object of the present invention is to provide a novel aqueous sealer for an inorganic porous base material and an inline coating method, in which the above-mentioned drawbacks of the prior art are eliminated.
  • Another object of the present invention is to sufficiently satisfy the above-mentioned performance required for an in-line solar cell, and also to prevent blocking.
  • An object of the present invention is to provide a novel water-based sealer for inorganic porous substrates having excellent water resistance and an in-line coating method.
  • the present invention provides a compound represented by the following general formula (A):
  • R 1 represents a hydrogen atom or a methyl group
  • R 2 represents a divalent hydrocarbon group having 1 to 4 carbon atoms
  • R 3 represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, respectively.
  • An object of the present invention is to provide an aqueous sealer for an inorganic porous base material characterized by this.
  • the present invention provides a method for applying an inline sealer to a surface of an inorganic porous base material, drying the coated inline sealer, and then curing the autoclave.
  • the present invention also provides an inline coating method for the base material, which is characterized in that the base material is the above-mentioned aqueous sealer.
  • the inventor of the present invention has conducted intensive studies to solve the above-mentioned drawbacks of the prior art, and as a result, a polymer obtained by subjecting the above specific amide-based monomer to radial polymerization as an aqueous sealer. Combine with base resin It has been found that the purpose can be achieved by using an aqueous sealer contained as an ingredient. The present invention has been completed based on such new knowledge.
  • the aqueous sealant of the present invention contains 0.1 to 60% by weight of an amide-based monomer (a) represented by the general formula (1) as one component of the monomer.
  • a vinyl copolymer (A) having an acid value of 10 to 160 mgKOH / g be contained as a base resin.
  • the divalent hydrocarbon group having 1 to 4 carbon atoms of R 2 represented by the general formula (1) is, for example, CH 2 , C 2 H 4 , C 3 H S , C 4 H 8 groups and the like.
  • the alkyl group having 1 to 4 carbon atoms for R 3 include a methylenol group, an ethyl group, an n-propyl group, an iso-propyl group, an n-butyl group, and an iso-butyl group. Tert-butyl group and the like.
  • R 2 is preferably CH 2 or C 2 H 4
  • R 3 is a methyl group, an ethyl group, an n-propynole group, or an n-butyl group. Etc. are preferred.
  • Amido-based monomers — ( a ) are preferred, for example, N — Methyl Mouth Clinorea Mid, N — Methyl Mouth Clamp C, N — n — butoxymethylinorea crynorea mid, and N — n — butoxymethylthio quinoarea mid.
  • the mixing ratio of the amide-based monomer ( a ) is 0.1 to 60% by weight, preferably 1 to 60% by weight, as the monomer component constituting the copolymer (A). 40% by weight.
  • the inorganic porous base materials adhere to each other in the autocure curing process and become difficult to be peeled off (that is, the inorganic porous substrates are hardly peeled off). And the blocking resistance decreases), while if it exceeds 60% by weight, the water resistance decreases.
  • the acid value of the copolymer (A) is in the range of 10 to 160 mgK0H / g, preferably 30 to: L20 mgKOH / g. If the acid value is less than 10 mg KOH / g, it is difficult to make the aqueous solution aqueous, and the storage stability of the obtained sealer and the permeability to the inorganic porous substrate are poor. On the other hand, when the acid value exceeds 160 mgKOH, there is a disadvantage that the water resistance of the coating film and the F-mouth receptivity are reduced.
  • the acid value of the copolymer (A) can usually be given by co-polymerizing the unsaturated monomer (b) containing a carboxyl group with the amide monomer (a). it can.
  • the blending ratio of the monomer (b) may be appropriately determined according to the acid value to be imparted.
  • the monomer constituting the copolymer (A) has 2 to 2 components. It is in the order of 0% by weight, preferably in the range from 5 to 15% by weight.
  • a mono (b) for example, (Meth) acrylic acid, maleic anhydride, fumanolic acid, itaconic acid and the like.
  • Other unsaturated monomers (c) can be used in amounts of up to 100% by weight.
  • Examples of the above-mentioned other unsaturated monomers (c) include, for example, diacetone (meta) acrynoreamid, acrolein, holminorestyrol, ( Meta) Clear area Pin linole aldehyde, diaceton (meta) acrylate, acetoninole (meta) acrylate, 2-h Loki Cipro Pill
  • (Meta) acrylate Unsaturated monomers containing a carbonyl group such as acetinoleate acetate and vinyl alkyl ketone; methine (meth) acrylate and ethynoleate Meta-relate, propyl (meta) -relate, n-butinole (meta) -relate, iso-puchinore (meta) -relate , Tert-butynole (meta) acrylate, 2-ethyl ethyl acrylate (meta) acrylate, cyclohexyne (meta) acrylate, n — Octil (meta) create, Rauril (meta) create, dodecinore (meta) create, stealing nose (meta) ) Atari rate, 2 — Echinore power Norebitotonore (meta) Accrelate, Iso Borninore (meta) (Meta) alkyl or cycl
  • (Men) Acrylic acid anorecoxialkyl estenolemonomer; styrene, ⁇ -aromatic vinyl monomer such as methinorestyrene, vinyl tonolene; 2—hydroxy Shechil (meta) acrylate, 2 — hydroxypropinolate (meta) acrylate, 2 — hydroxy 1 3 — fenoxypropinole (meta) Menu) 3) Doxypropinole (meta) acrylate, hydroxybutyl (meta) acrylate, (poly) alkylene glycol monoacrylate Hydroxy-unsaturated monomers such as adducts of salts and adducts of these monomers with lactones (eg, ⁇ -caprolactone, etc.); Estenoles of (meth) acrylates and other aromatic alcohols with (meth) acrylates; vinylinoletriethoxysilane, vinyltrimethoxy Silane, vinyl tris (meth) Chillinoreti
  • the mixing ratio of the other monomer (c) is usually from 20 to 97.9% by weight, preferably from 45 to 9%, as the monomer constituting the copolymer (A). It is in the range of 4% by weight.
  • the copolymer (A) is preferably produced by a solution polymerization method. Specifically, for example, in a medium containing a hydrophilic organic solvent such as an alcohol-based solvent or an ether-based solvent, the radically polymerizable monomers of the above-mentioned monomers (a), (b) and (c) are used. The polymer is reacted at a temperature of about 50 to 140 ° C. for about 4 to 10 hours in the presence of a radical polymerization initiator (for example, an azo initiator, a peroxide initiator, etc.). Can be manufactured.
  • a radical polymerization initiator for example, an azo initiator, a peroxide initiator, etc.
  • the copolymer (A) preferably has a number average molecular weight of about 1,000 to 100,000, particularly preferably 2,000 to 20,000. When the number average molecular weight is less than about 1,000, the water resistance and the like decrease, while when the number average molecular weight exceeds 100,000, It is not preferable because the permeability to the base material is inferior and the blocking resistance is reduced.
  • the aqueous sealer of the present invention is obtained, for example, by blending a neutralizing agent with an organic solvent solution of the copolymer (A), and partially or entirely dissolving the hydroxyl group in the copolymer. It is preferable to produce a water-soluble or water-dispersible polymer by diluting the polymer with water.
  • the neutralization equivalent is desirably in the range of about 0.4 to 1.8 equivalents, preferably about 0.5 to 1.2 equivalents, based on the carboxyl group.
  • neutralizing agent examples include ammonia; ethylamine, propinoreamin, butinoreamin, penginoleamine, monoethanolamine, neopentamine.
  • Normin, 2 Amino Prono. Knol, 3—Amino propanol, etc .; First-class amin; Jetinoreamin, Diethanolanoreamin, Di-n—Propanoarea Min, di-iso-prono ,.
  • Second-class amines such as non-oleamine, N-methylamine and non-amine, N-ethylenamine, and non-amine; di-methylamine and non-amine.
  • the copolymer (A) If necessary, for example, amide resin (B1), polyoxazoline compound (B2), polyaziridin compound (B3), polyhydrazide compound (B1) A crosslinking agent (B) such as B4) can be blended. By adding the crosslinking agent (B), self-crosslinking reaction by the crosslinking agent (amino resin or the like) itself or the functional group of the crosslinking agent (B) and the copolymer (B) can be carried out. The crosslinked reaction with the functional group of A) can form a crosslinked coating film.
  • a crosslinking agent (B) such as B4
  • the crosslinked reaction with the functional group of A) can form a crosslinked coating film.
  • the combination of the copolymer (A) and the crosslinking agent (B) include, for example, a copolymer (A), a noamino resin (B1), a copolymer containing a hydroxyl group and Z or a carboxyl group ( A1) Amino resin (Bl), the copolymer (A1) Z-polyoxazoline compound (B2), the copolymer (A1) nopolyaziridine compound (B1) B 3), a carbonyl group-containing copolymer (A 2), a nopolyhydrazide compound (B 4), and the like.
  • a copolymer (A), a noamino resin (B1), a copolymer containing a hydroxyl group and Z or a carboxyl group A1 Amino resin (Bl)
  • the copolymer (A1) Z-polyoxazoline compound (B2) the copolymer (A1) nopolyaziridine compound (B1) B 3
  • the above-mentioned vinyl monomer containing a hydroxysilane group and a hydrolyzable silane group is copolymerized as a monomer of the copolymer (A).
  • a crosslinked coating film can be formed by a hydrolysis-condensation reaction of a hydroxysilane group and / or a hydrolyzable silane group without using the above crosslinking agent in combination.
  • the copolymer (A1) uses a hydroxyl group-containing unsaturated monomer as a component of the monomer in the copolymer (A) and as a part of the other monomer (c). By doing so, it can be prepared.
  • a hydroxyl group-containing unsaturated monomer is used, it is usually 0.1 to 20% by weight, preferably 1 to 15% by weight as a monomer component constituting the copolymer. It is desirable to use in the range of%.
  • the copolymer (A 2) is a carbonyl group-containing unsaturated monomer as part of the other monomer (c) as a monomer component in the copolymer (A). It can be prepared by using it. When the monomer is used, it is usually used in an amount of 0.1 to 20% by weight, preferably 1 to 15% by weight, as a monomer component constituting the copolymer. It is desirable to do it.
  • the copolymer (A) may have the above-mentioned other components as monomer components.
  • the monomer component constituting the copolymer is usually 0.1 to 20% by weight, preferably 1 to 15% by weight. Use in the range Is desirable.
  • the above-mentioned unsaturated monomer having a hydroxyl group, unsaturated monomer having a carbonyl group, a hydroxyloxylan group and a vinyl monomer having a hydrolyzable silane group are One or more types can be used in combination.
  • Examples of the crosslinking agent (B) include the following.
  • Examples of the amino resin (B1) include, but are not limited to, melamin, urine, benzoguanamine, acetate guanamine, steroguanamine, spiroguanamine, and diguanidine.
  • a methylated amino resin obtained by reacting an amino component such as cyanide diamide with an aldehyde is exemplified.
  • Examples of the above aldehydes include formaldehyde, eno, and the like. La Holmaldehyde, Acetaldehyde, Benzaldehyde and the like.
  • those obtained by etherifying the methyl monoamino resin with an appropriate alcohol can also be used.
  • alcohols used in ethereal daggers include methyl alcohol-nore, echinore a nore, n-pro pinore a nore, is 0-pro pinore a nore Examples thereof include n-butyl, n-butyl alcohol, iso-butyl alcohol, 2-butyl alcohol, 2-hexanol, and the like.
  • a melamine resin is preferable, and further, a part or a part of a methylol group of the melamine resin is used.
  • a low-molecular-weight alkoxymer which is made water-soluble by etherifying it with a lower alcohol such as methyl alcohol, ethyl alcohol, propanolean alcohol, etc. Min resin is more preferred.
  • one triazine core and three or more methylol groups on average are methyletherified to form a melanin or a part of the methoxy group.
  • Examples of commercially available products (trade names) of the low-molecular-weight alkoxylamin resin include, for example, “Symenole 303”, “Symele 325”, “Symenole 327”, “Syme No. 350”, “Sym.
  • the mixing ratio (in terms of solid content) when the amino resin is used is about 5 to 50 parts by weight, especially about 7 to 40 parts by weight, based on 100 parts by weight of the solid content of the copolymer (A). It is in the range of parts by weight.
  • the polyoxazoline compound (B 2) is represented by the general formula N-CH 2
  • a compound having an average of 1.5 or more oxazoline groups represented by the following formula in one molecule preferably has an average of 2 to 50 oxazoline groups per molecule.
  • the residue to which the oxazoline group is bonded is an aliphatic group, an aromatic group, an alicyclic group, or a group in which any of these groups is combined.
  • the residue to which the oxazoline group is bonded may be a low molecular weight compound or a high molecular weight compound, particularly a styrene polymer or a styrene polymer. -Acrylate-based copolymer is preferred.
  • the polyoxazoline compound (B 2) is not particularly limited, but may be a commercially available product (trade name), for example, "Epocloth K — 2020E” (Nippon Shokubai Co., Ltd., oxazoline equivalent 550, glass transition temperature 0 ° C, solid content 40% by weight), "Epocloth” K 1 2 3 0 EJ (Nippon Shokubai
  • the mixing ratio (in terms of solid content) when using the poloxazolin compound (B2) is about 1 to 30 parts by weight with respect to 100 parts by weight of the solid content of the copolymer (A). Particularly, a range of about 2 to 20 parts by weight is preferable.
  • the polyaziridene compound (B 3) is represented by the general formula CH 2
  • R 4 and R 5 are the same or different and each represent a hydrogen atom or an alkyl group having 1 to 4 carbon atoms.
  • An average of 15 aziridines represented by the formula It can be a compound having the above.
  • the polyaziridin compound preferably has an average of 2 to 50 such aziridine groups in one molecule.
  • an aliphatic group, an aromatic group, or an alicyclic group which may contain a tera atom such as oxygen, sulfur, or nitrogen. It is a group in which a group and any of these groups are combined.
  • the residue to which the aziridin group is bonded may be a low molecular weight compound or a high molecular weight compound.
  • polyaziridin compound (B3) examples include, for example, N, N'-hexamethylene-1,6-bis (111-aziridylcarboxamide) , ⁇ , ⁇ '— dipheninolemethan-1,4,4' — screw (1 — aziridin phenolic amide), trimethylone reprono.
  • Examples of commercially available water-dispersed aziridin compounds include “SU-125 FJ (manufactured by Meisei Chemical Industry Co., Ltd.)” and “DZ-22E”. (Manufactured by Nippon Shokubai Co., Ltd.).
  • the amount (in terms of solid content) is preferably in the range of about 1 to 30 parts by weight, particularly about 2 to 20 parts by weight, based on 100 parts by weight of the solid content of the copolymer (A).
  • the polyhydrazide compound (B 4) has two or more hydrazide groups (one CO—NH_NH 2) in a molecule that form a crosslinked structure in response to a carbonyl group. It is a compound.
  • the polyhydrazide compound preferably has 2 to 5 hydrazide groups in one molecule.
  • polyhydrazide compound (B4) include, for example, dihydrazide such as phenolic hydrazide, oxalic acid dihydrazide and malonic acid dihydrazide.
  • dihydrazide such as phenolic hydrazide, oxalic acid dihydrazide and malonic acid dihydrazide.
  • Hydrazide benzoic acid dihydrazide, guanolethanoleic acid dihydrazide, adipic acid dihydrazide, sepa, succinic acid dihydrazide, eicoic acid dihydric acid
  • Aliphatic carboxylic acid dihydrazide having 2 to 40 carbon atoms such as acid dihydrazide, phthalenoic acid dihydrazide, terephthalic acid dihydrazide, and a Softenoleic acid dihydrazide, pyromellitic acid dihydrazide, pyromellitic acid trihydrazide, py
  • Aromatic polyhydrazide maleic acid dihydrazide, fumanoleic acid dihydrazide, Monorefractive unsaturated dihydrazides such as diacid hydrazide, biscemicarnozide, polyacrylonitrile polyhydrazide, 1, 3 — Bis (hydra ji doka norebechnore) one 5 (1)
  • Other polyhydrazides such as isopropynolehydantoin.
  • the compounding ratio is preferably 0.05 to 2 equivalents, preferably, to the carbonyl group of the copolymer (A 2). It is in the range of 0.1 to 1 equivalent. If the amount of the polyhydrazide compound (B 4) is less than 0.05 equivalent, the sealant coating film's anti-Frequence receptivity, anti-blocking property, etc., decrease. On the other hand, if it exceeds 2 equivalents, water resistance and the like will decrease.
  • the aqueous sealer of the present invention may contain a colloidal resiliency.
  • colloidal silica By blending colloidal silica, the blocking resistance of the sealer coating can be further improved.
  • ⁇ Ko B A Danoreshi is a Li Ca, S i 0 2 the Ri-water dispersion der to a basic unit, arbitrary even the preferred particle size of 4 ⁇ 1 0 0 nm to.
  • the colloidal silica an aqueous dispersion having a pH of about 7.1 or more can be suitably used.
  • Specific commercially available products include, for example, “Snowtechs 20”, “Snowtechs C” and “Snowtechs N”. (Both manufactured by Nissan Chemical Industries, Ltd.).
  • the mixing ratio of the color darica is from 0 to 400 weight in terms of solid content with respect to 100 weight parts of the solid content of the copolymer (A). Parts by weight, preferably in the range of 0 to 100 parts by weight.
  • the aqueous sealer of the present invention may further contain, if necessary, a coloring pigment, an extender, a filler, a curing catalyst, a fluidity regulator, an antifoaming agent, an organic solvent, and the like. Can be done.
  • the aqueous slurry of the present invention is water-soluble or water-dispersible, and its solid content is usually about 10 to 60% by weight, preferably about 20 to 50% by weight. It is.
  • the composition of the present invention uses water as a medium.
  • a hydrophilic solvent may be appropriately used as needed. Examples of the hydrophilic solvent include isopropanol, n-butanol, tert-butanol, methoxyethanol, ethanol, ethanol, and butoxy. Shetano monole, diethyl alcohol, methinole ether, dioxane, tetrahydrofuran, methoxyprono, o-nole, butyl cello sonolev and the like. You.
  • aqueous sealer of the present invention can be formed on an inorganic porous substrate made of an inorganic material such as cement, concrete, mortar, etc. by a conventional method.
  • a coating film having excellent frost damage resistance, weather resistance, anti-fret essence, adhesion, blocking resistance, and sign-proofing properties can be formed.
  • the aqueous sealer of the present invention can be suitably used particularly as an in-line sealer in an in-line coating step. That is, the in-line coating method of the present invention comprises a coating step in which an in-line silica is applied to the surface of an inorganic porous base material, dried, and then cured by auto-crape. In-line sealer power
  • the aqueous sealer of the present invention is characterized in that it is an aqueous sealer.
  • the inorganic porous base material is a shaped body mainly composed of an inorganic material such as cement, concrete, mortal, and calcium silicate, and is a specific example. Building materials such as cement board, asbestos cement board, wood chip cement board, pulp cement board, lightweight foam concrete board, slate board, calcium silicate board, etc. And those used as structural materials, civil engineering materials, or industrial materials.
  • the base material can be used for primary curing as needed. The primary curing is performed, for example, by leaving in a heated steam for a certain period of time.
  • the solids content of the aqueous sealer when used is usually 1 to 40% by weight, preferably 3 to 20% by weight.
  • the coating is applied to secure the coating thickness.
  • the coating workability decreases.
  • it exceeds 40% by weight the permeability to the base material is poor, and the blocking resistance is reduced. Absent.
  • the application amount (in terms of solid content) of the aqueous sealer is usually in the range of 0.1 to 30 £ / 10 2 , and preferably in the range of 0.5 to 20 g / m 2 . If the coating amount is less than 0.1 g / m 2, the F-mouth resilience will decrease, while if it exceeds 30 g / m 2 , the blocking resistance will decrease. , Neither is preferred.
  • the coating method of the water-based sealer is not particularly limited, and may be a conventionally known coating method, for example, a roller coating, a brush coating, a spray coating, a dip coating, a floor coating method. Can be carried out by using a method such as a ten-flow (a coater).
  • the aqueous sealer is dried, for example, when the substrate is heated by primary curing or the like, by the residual heat (usually about 60 ° C) of the substrate due to the primary curing. Drying is preferred. In addition, when the substrate is not preheated, it depends on the type of the substrate, but it is usually about 20 to 200 ° (: for about 3 seconds to 60 minutes). In the drying, in particular, drying by the residual heat of the base material is performed on the base material because the sealer is coated while the base material is warmed. Because of the excellent permeability, the cross-linking reaches the inside of the base material, so that the properties such as water resistance, F mouth receptivity, blocking resistance, etc. It has the advantage of superior performance.
  • the autoclave curing can be performed, without particular limitation, under the conditions employed for the inorganic porous base material. Usually, it is performed in the presence of water vapor for about 100 to 250 ° (: about 3 to 15 kgf / cm ⁇ for about 1 to 24 hours.
  • An aqueous sealer of the present invention was produced in the same manner as in Example 1 using the monomer compositions shown in Table 1. In Examples 5 to 9, the crosslinking agents or additives shown in Table 1 were blended.
  • Aqueous comparative gels were produced in the same manner as in Example 1 using the monomer compositions shown in Table 1.b
  • Table 1 shows the monomer composition of each aqueous sealer obtained in Examples and Comparative Examples, and the mixing ratio of the crosslinking agent and the additives.
  • crosslinking agents and additives in Table 1 are as follows.
  • Cemented Petroleum Water 100% No.
  • a mixture prepared at a weight ratio of 435 was molded into a flat plate and left for 30 minutes to obtain a semester.
  • a water-based sealer was spray-coated on the surface of the mounting plate so that the coating amount became 50 g / m 2 , and left to dry for 3 days. (Approximately 6 to 9 kgf / cm 2 , approximately 6 hours in the presence of water vapor), and then the coating film of the sealer was observed.
  • the evaluation criteria are as follows. A shows that the coating film is completely whitened, B shows that the coating film is slightly whitened, but has no practical problem, C shows that the coating film is whitened, and D shows that the coating film is whitened. Are remarkable.
  • Blocking resistance Spray-coat two aqueous plates with an aqueous sealer so that the coating amount is 50 g / m 2 , and apply at 100 ° C. After drying for 1 minute, apply the pressure so that the load becomes 400 g./cm 2 by combining the painted surfaces of each plate. This was heated at 170 ° C for 1 hour, cooled to room temperature, and examined for the ease of peeling between the two slats.
  • the evaluation criteria are as follows. A shows that the painted surface does not adhere at all, B shows that the painted surface is slightly adhered but can be peeled off with a light force, and C shows that the painted surface cannot be peeled off without applying strong force. D and D indicate that it is difficult to peel off the painted surface, respectively.
  • D shows that the coating is slightly blurred and peels off.
  • Alkaline resistance A test overcoated plate prepared in the same manner as in the above water resistance test was used for this test. After immersing this coated plate in a saturated aqueous solution of calcium hydroxide at 20 ° C for 30 days, check the coating film for any abnormalities such as coating overcoat, peeling, and flakes. Observed.
  • the evaluation criteria are as follows. A shows that there is no abnormality, B shows that the paint film has slight flakes, C shows that the paint film has flakes, and D shows that the paint film has flakes and peeling. Are shown below.
  • Table 2 shows the results of the performance test.
  • the coating film obtained by applying the aqueous sealer of the present invention to the inorganic porous base material is excellent in the resistance to mouth opening and blocking and the overcoating. It can be seen that the coated film exhibits excellent effects on water resistance and alkaline resistance.
  • an in-line sealer is provided.
  • a new water-based sealer and an in-line coating method for an inorganic porous base material which fully satisfies the above-mentioned performance required for the inorganic porous base material and has excellent blocking resistance and water resistance. This has a remarkable effect.
  • the aqueous sealant of the present invention uses a copolymer containing a basic specific amide monomer having relatively large hydrophilicity as a monomer component. It has good stability of the sealer and excellent permeability to the inorganic porous base material, and furthermore, the methylol group or the alkoxy group based on this monomer has an excellent property. It is considered that a self-crosslinking reaction or a cross-linking reaction with a crosslinking agent is caused by heating the toque or the like, so that a coating film having excellent blocking resistance can be formed. Also, for similar reasons or found, the further coating painted a topcoat Ri paints, also conceivable for to exert remarkable effects Tsu had the excellent coating film performance such as water resistance (

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
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  • Sealing Material Composition (AREA)

Abstract

Ce produit d'isolation aqueux pour substrat inorganique poreux se caractérise par le fait qu'il contient un copolymère vinylique contenant, comme motifs monomères (A), de 0,1 à 60 %, en pourcentage pondéral, de motifs dérivés d'un monomère d'amide correspondant à la formule générale (1) (R1 représentant un hydrogène ou un méthyle, R2 représentant un groupe hydrocarbure divalent porteur de 1 à 4 atomes de carbone et R3 représentant un hydrogène ou un alkyle porteur de 1 à 4 atomes de carbone) et dont la valeur acide est comprise entre 10 et 160 mgKOH/g. L'invention a trait également à un procédé d'enduction en ligne d'un substrat pour lequel ce produit d'isolation est utilisé comme isolant en ligne. Ce produit d'isolation est à même de constituer une pellicule protectrice offrant une remarquable résistance au blocage, etc.
PCT/JP1999/004231 1998-08-05 1999-08-05 Produit d'isolation aqueux pour substrat inorganique poreux et procede d'enduction en ligne Ceased WO2000007960A1 (fr)

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JP2000563595A JP4420563B2 (ja) 1998-08-05 1999-08-05 無機系多孔質基材用水性シーラー及びインライン塗装法

Applications Claiming Priority (4)

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JP22192198 1998-08-05
JP10/221921 1998-08-05
JP34455798 1998-12-03
JP10/344557 1998-12-03

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WO2000007960A1 true WO2000007960A1 (fr) 2000-02-17

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WO (1) WO2000007960A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002012482A (ja) * 2000-06-22 2002-01-15 Matsushita Electric Works Ltd 窯業系基材切削部の補強方法
WO2014148636A1 (fr) * 2013-03-22 2014-09-25 横浜ゴム株式会社 Apprêt à base d'eau
CN114605874A (zh) * 2022-04-10 2022-06-10 上海三银涂料科技股份有限公司 一种加固型耐碱渗透底漆及其制备方法

Citations (4)

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Publication number Priority date Publication date Assignee Title
JPH02233572A (ja) * 1989-01-16 1990-09-17 Basf Ag コンクリート瓦
JPH04338182A (ja) * 1990-12-22 1992-11-25 Basf Ag ポリマー塗布されたプレキャストコンクリート
JPH061680A (ja) * 1992-06-18 1994-01-11 Kanebo Nsc Ltd プライマー用水性液
JPH08295832A (ja) * 1995-04-26 1996-11-12 Showa Highpolymer Co Ltd シーラー用樹脂組成物及びその製造方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02233572A (ja) * 1989-01-16 1990-09-17 Basf Ag コンクリート瓦
JPH04338182A (ja) * 1990-12-22 1992-11-25 Basf Ag ポリマー塗布されたプレキャストコンクリート
JPH061680A (ja) * 1992-06-18 1994-01-11 Kanebo Nsc Ltd プライマー用水性液
JPH08295832A (ja) * 1995-04-26 1996-11-12 Showa Highpolymer Co Ltd シーラー用樹脂組成物及びその製造方法

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002012482A (ja) * 2000-06-22 2002-01-15 Matsushita Electric Works Ltd 窯業系基材切削部の補強方法
WO2014148636A1 (fr) * 2013-03-22 2014-09-25 横浜ゴム株式会社 Apprêt à base d'eau
KR20150119460A (ko) * 2013-03-22 2015-10-23 요코하마 고무 가부시키가이샤 수계 프라이머
KR101616321B1 (ko) 2013-03-22 2016-04-28 요코하마 고무 가부시키가이샤 수계 프라이머
CN105051130B (zh) * 2013-03-22 2016-11-30 横滨橡胶株式会社 水系底漆
CN114605874A (zh) * 2022-04-10 2022-06-10 上海三银涂料科技股份有限公司 一种加固型耐碱渗透底漆及其制备方法

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