WO2013187208A1 - Two-component room temperature curing-type urethane coating waterproof material composition - Google Patents

Two-component room temperature curing-type urethane coating waterproof material composition Download PDF

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Publication number
WO2013187208A1
WO2013187208A1 PCT/JP2013/064396 JP2013064396W WO2013187208A1 WO 2013187208 A1 WO2013187208 A1 WO 2013187208A1 JP 2013064396 W JP2013064396 W JP 2013064396W WO 2013187208 A1 WO2013187208 A1 WO 2013187208A1
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mass
group
acid
urethane
parts
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PCT/JP2013/064396
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French (fr)
Japanese (ja)
Inventor
清人 ▲高▼橋
憲司 塩田
田中　光一
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横浜ゴム株式会社
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Priority to JP2013553700A priority Critical patent/JP6115474B2/en
Publication of WO2013187208A1 publication Critical patent/WO2013187208A1/en

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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
    • C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
    • C09D175/04—Polyurethanes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40—High-molecular-weight compounds
    • C08G18/48—Polyethers
    • C08G18/4804—Two or more polyethers of different physical or chemical nature
    • C08G18/4812—Mixtures of polyetherdiols with polyetherpolyols having at least three hydroxy groups
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72—Polyisocyanates or polyisothiocyanates
    • C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
    • C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
    • C08G18/7614—Polyisocyanates or polyisothiocyanates cyclic aromatic containing only one aromatic ring
    • C08G18/7621—Polyisocyanates or polyisothiocyanates cyclic aromatic containing only one aromatic ring being toluene diisocyanate including isomer mixtures
    • 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
    • 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
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/60—Additives non-macromolecular
    • C09D7/63—Additives non-macromolecular organic
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds

Definitions

  • the present invention relates to a two-component room temperature curable urethane coating film waterproofing material composition.
  • Polyurethane is widely used in various fields such as architecture and automobiles. For example, it is used as a waterproof coating material for a coating film for an outer wall of a building.
  • Urethane-based waterproofing membranes are, for example, urethane-based compositions (urethane coatings) on the entire surface of a building, such as a flat surface such as a floor surface of a building and a veranda, or a vertical surface such as an outer wall surface of a building. It is a waterproofing material that prevents the penetration and penetration of water into the building by coating and curing the membrane waterproofing material composition).
  • Patent Document 1 a mixture of a main agent containing a urethane prepolymer and a curing agent containing a compound having an active hydrogen group has been proposed (for example, see Patent Document 1).
  • Patent Document 1 includes a main agent containing a urethane prepolymer and a compound having an active hydrogen group as a compound having an active hydrogen group, with a specific diamine compound in an amount of 1% by mass or more based on the total mass of the compound having an active hydrogen group.
  • a two-component room temperature curable urethane coating waterproofing material composition having a curing agent containing a castor oil-based polyol in an amount of 2% by mass or more based on the total mass of the compound having an active hydrogen group.
  • the urethane waterproof material obtained by curing the urethane composition described in Patent Document 1 seems to be exposed and exposed on the surface without allowing air from the base to enter the urethane waterproof material to be removed. Pinholes may occur and the appearance may be impaired.
  • an object of the present invention is to provide a two-component room-temperature-curing urethane coating film waterproofing material composition that can suppress the generation of pinholes.
  • the present invention is as follows (1).
  • the content of the dimer acid is 0.15 parts by mass or more with respect to 100 parts by mass of the urethane prepolymer,
  • Content of the said wet dispersing agent is 0.15 mass part or more with respect to 100 mass parts of said urethane prepolymers,
  • the two-component room temperature curing type urethane coating waterproof material composition characterized by the above-mentioned.
  • the two-component room temperature curable urethane coating waterproof material composition (hereinafter referred to as “the composition of the present embodiment”) according to the present embodiment includes a main agent containing a urethane prepolymer and a dimer acid, polypropylene glycol, and wet.
  • a curing agent containing a dispersant, the content of the dimer acid is 0.15 parts by mass or more with respect to 100 parts by mass of the urethane prepolymer, and the content of the wet dispersant is the urethane prepolymer 100. It is a composition characterized by being 0.15 parts by mass or more with respect to parts by mass.
  • the main agent used for the composition of this embodiment contains a urethane prepolymer and a dimer acid.
  • the urethane prepolymer contained in the main agent is not particularly limited.
  • a conventionally well-known thing is mentioned.
  • a reaction product obtained by reacting a polyol compound and a polyisocyanate compound so that an isocyanate group (NCO group) is excessive with respect to a hydroxy group can be mentioned.
  • the urethane prepolymer can contain 0.5% by mass or more and 5% by mass or less of NCO groups at the molecular ends.
  • a polyol compound is a general term for polyhydroxyl compounds having a structure in which a plurality of hydrogen atoms in a hydrocarbon are substituted with hydroxyl groups.
  • the polyol compound used in the production of the urethane prepolymer is not particularly limited as long as it has two or more hydroxy groups.
  • polyether polyol, polyester polyol, other polyols, and mixed polyols thereof can be used.
  • polyether polyols examples include ethylene glycol, diethylene glycol, propylene glycol, dipropylene glycol, glycerin, 1,1,1-trimethylolpropane, 1,2,5-hexanetriol, 1,3-butanediol, 1,4 -Polyol obtained by adding at least one selected from the group consisting of ethylene oxide, propylene oxide, butylene oxide and polyoxytetramethylene oxide to at least one selected from the group consisting of butanediol and pentaerythritol. .
  • polyester polyol examples include at least one selected from the group consisting of ethylene glycol, propylene glycol, butanediol, pentanediol, hexanediol, glycerin, 1,1,1-trimethylolpropane, and other low molecular polyols, and glutar A condensation polymer with at least one selected from the group consisting of acids, adipic acid, pimelic acid, suberic acid, sebacic acid, dimer acid, other aliphatic carboxylic acids and oligomeric acids; ring-opening weight of propionlactone, valerolactone Coalesce is mentioned.
  • polystyrene resins include, for example, polymer polyols, polycarbonate polyols; polybutadiene polyols; hydrogenated polybutadiene polyols; acrylic polyols; A molecular weight polyol may be mentioned.
  • Polyol compounds can be used alone or in combination of two or more.
  • the polyisocyanate compound used in the production of the urethane prepolymer is not particularly limited as long as it has two or more isocyanate groups in the molecule.
  • the polyisocyanate compound include TDI (for example, 2,4-tolylene diisocyanate (2,4-TDI), 2,6-tolylene diisocyanate (2,6-TDI)), MDI (for example, 4,4 ′ -Diphenylmethane diisocyanate (4,4'-MDI), 2,4'-diphenylmethane diisocyanate (2,4'-MDI)), 1,4-phenylene diisocyanate, polymethylene polyphenylene polyisocyanate, xylylene diisocyanate (XDI), tetra Aromatic polyisocyanates such as methylxylylene diisocyanate (TMXDI), tolidine diisocyanate (TODI), 1,5-naphthalene di
  • Polyisocyanate compounds can be used alone or in combination of two or more.
  • Examples of the combination of the polyol compound and the polyisocyanate compound include at least one selected from the group consisting of tolylene diisocyanate (TDI), xylylene diisocyanate (XDI), and diphenylmethane diisocyanate (MDI), polypropylene ether diol, and / or A combination with polypropylene ether triol is mentioned.
  • TDI tolylene diisocyanate
  • XDI xylylene diisocyanate
  • MDI diphenylmethane diisocyanate
  • polypropylene ether diol polypropylene ether diol
  • a combination with polypropylene ether triol is mentioned.
  • the amount of the polyisocyanate compound and the polyol compound in producing the urethane prepolymer is such that the equivalent ratio of the isocyanate group to the hydroxyl group (isocyanate group (NCO group) / hydroxyl group (OH group)) is 1.2 or more. 0.5 or less is preferable, and 1.5 or more and 2.0 or less is more preferable.
  • the equivalent ratio refers to the ratio of isocyanate groups in the polyisocyanate compound per hydroxyl group in the polyol compound. When the equivalence ratio is in such a range, the viscosity of the obtained urethane prepolymer becomes appropriate, and the composition becomes more difficult to foam.
  • the number average molecular weight of the urethane prepolymer is 2000 or more, preferably 2000 or more and 15000 or less, more preferably 2000 or more and 10,000 or less.
  • the method for producing the urethane prepolymer is not particularly limited.
  • the urethane prepolymer can be produced by reacting the polyol compound and the polyisocyanate compound having the above-mentioned equivalent ratio with heating and stirring at 50 ° C. to 130 ° C.
  • a urethanization catalyst such as an organic tin compound, an organic bismuth, or an amine can be used.
  • Urethane prepolymers can be used alone or in combination of two or more.
  • the dimer acid is not particularly limited as long as it is a polybasic carboxylic acid.
  • the polybasic carboxylic acid include saturated dicarboxylic acid, unsaturated dicarboxylic acid, and aromatic dicarboxylic acid.
  • the saturated dicarboxylic acid include glutaric acid, adipic acid, azelaic acid and the like.
  • the unsaturated dicarboxylic acid include fumaric acid and maleic acid.
  • the aromatic dicarboxylic acid include phthalic acid, isophthalic acid, terephthalic acid and the like.
  • the dicarboxylic acid at least one dicarboxylic acid selected from aliphatic, alicyclic and aromatic dicarboxylic acids or derivatives thereof can be used.
  • the dicarboxylic acid include straight chain aliphatic dicarboxylic acids having 2 to 25 carbon atoms such as oxalic acid, succinic acid, glutaric acid, adipic acid, pimelic acid, suberic acid, azelaic acid, sebacic acid, dodecanedioic acid, etc.
  • dimer acid a dimerized aliphatic dicarboxylic acid having 14 to 48 carbon atoms obtained by dimerizing unsaturated fatty acids obtained by fractional distillation of triglycerides and hydrogenated products thereof (hereinafter referred to as hydrogenated dimers).
  • aliphatic dicarboxylic acids such as 1,4-cyclohexanedicarboxylic acid, and aromatic dicarboxylic acids such as terephthalic acid and isophthalic acid.
  • dimer acid is preferably used.
  • dimer acid Commercial products can be used as the dimer acid.
  • specific examples of commercially available dimer acids include long-chain aliphatic dicarboxylic acids having 22 carbon atoms (IPU-22, manufactured by Okamura Seiyaku Co., Ltd.), long-chain aliphatic dicarboxylic acids having 20 carbon atoms (UL-). 20, Okamura Essential Oil Co., Ltd.).
  • the content of the dimer acid is 0.15 parts by mass or more, preferably 0.15 parts by mass or more and 10 parts by mass or less, more preferably 0.15 parts by mass or more and 5 parts by mass with respect to 100 parts by mass of the urethane prepolymer. Or less, more preferably 0.15 parts by mass or more and 3 parts by mass or less.
  • the composition of the present embodiment can grow bubbles of air that has entered from the base and destroy the foam film, thereby suppressing the generation of pinholes. can do.
  • the curing agent used in the composition of this embodiment contains polypropylene glycol and a wetting and dispersing agent.
  • the curing agent includes polypropylene glycol.
  • the curing agent can contain a polyol compound other than polypropylene glycol.
  • Polyol compounds other than polypropylene glycol have two or more hydroxy groups, and examples thereof include polyether polyols, polyester polyols, other polyols, and mixed polyols thereof.
  • a polyol compound it is the same as that of the polyol compound used for the urethane prepolymer mentioned above.
  • wetting and dispersing agent examples include compounds having a polar group such as a carboxyl group, a hydroxyl group, and an acid ester, and polymer compounds such as acid-containing compounds such as phosphate esters, copolymers containing acid groups, and hydroxyl group-containing polycarboxylic acids.
  • examples include esters, polysiloxanes, salts of long-chain polyaminoamides and acid esters.
  • the wetting and dispersing agent is preferably a compound having a structure having both a hydrophilic group and a hydrophobic group in one molecule. It is preferable that each of the hydrophilic group and the hydrophobic group has at least one in one molecule.
  • M include alkali metals such as sodium and potassium, and —NH 4 .
  • R include alkyl groups such as a methyl group, an ethyl group, a propyl group, and an isopropyl group.
  • X include halogen such as chlorine atom and bromine atom.
  • the hydrophilic groups can be used alone or in combination of two or more.
  • hydrophobic groups include alicyclic hydrocarbon groups such as chain hydrocarbon groups, cyclopentyl groups, cyclohexyl groups, and cyclohexenyl groups; phenyl groups, tolyl groups, xylyl groups, benzyl groups, styryl groups, and naphthyl groups.
  • An aromatic hydrocarbon group such as: a halogenated alkyl group such as a chloromethyl group, a chloroethyl group, or a bromomethyl group, or an organosilicon group (—SiR 3 (R is, for example, a methyl group, an ethyl group, or a phenyl group)).
  • a halogenated alkyl group such as a chloromethyl group, a chloroethyl group, or a bromomethyl group
  • organosilicon group —SiR 3 (R is, for example, a methyl group, an ethyl group, or a
  • the chain hydrocarbon group may be branched. Hydrophobic groups can be used alone or in combination of two or more.
  • the wetting and dispersing agent is not particularly limited with respect to its skeleton.
  • the skeleton of the compound having a hydrophilic group and a hydrophobic group include those having a carbon atom.
  • examples of the skeleton (main chain) include hydrocarbons.
  • the skeleton of the compound having a hydrophilic group and a hydrophobic group can contain a double bond.
  • the wetting and dispersing agent can contain, for example, a nitrogen atom, an oxygen atom, a sulfur atom, or a silicon atom in the skeleton of the compound (main chain in the case of an oligomer or polymer).
  • the wetting and dispersing agent has an effect that dimer acid can be uniformly dispersed.
  • the wetting and dispersing agent preferably contains an unsaturated polycarboxylic acid polymer solution from the viewpoint of allowing air bubbles that have entered from the base to grow and destroying the foam film.
  • the wetting and dispersing agent contains a basic group from the viewpoint that air bubbles entering from the base can be grown and the foam film can be destroyed.
  • Suitable examples of the basic group include alkyl ammonium salts.
  • Preferable examples of the wetting and dispersing agent containing an alkyl ammonium salt include a solution of an alkyl ammonium salt of a polycarboxylic acid.
  • wetting and dispersing agent Commercial products can be used as the wetting and dispersing agent.
  • specific examples of commercially available wetting and dispersing agents include BYK-W961, BYK-W935 (manufactured by Big Chemie Japan Co., Ltd.) and the like.
  • the content of the wetting and dispersing agent is 0.15 parts by mass or more with respect to 100 parts by mass of the urethane prepolymer, preferably 0.15 parts by mass or more and 10 parts by mass or less, more preferably 0.15 parts by mass or more. 5 parts by mass or less, more preferably 0.15 parts by mass or more and 1 part by mass or less.
  • the content of the wetting and dispersing agent is within the above range, the composition of the present embodiment can grow bubbles of air that has entered from the base and destroy the foam film, thereby suppressing the generation of pinholes. can do.
  • the content of the wetting and dispersing agent is preferably increased or decreased in proportion to the content of the dimer acid from the viewpoint of uniformly dispersing the dimer acid.
  • the main agent and the curing agent contained in the composition of the present embodiment can contain various additives as necessary within a range that does not impair the purpose of the present embodiment.
  • the additive include a filler, a catalyst, a plasticizer, an anti-aging agent, an antioxidant, an antistatic agent, a flame retardant, an adhesion imparting agent, a stabilizer, a dispersant, a solvent, a pigment, and a dye.
  • Each additive can be used in combination as appropriate.
  • the blending amounts of these additives can be conventional conventional blending amounts as long as the object of the present embodiment is not violated.
  • fillers include organic or inorganic materials of various shapes. For example, calcium carbonate, wax stone clay, kaolin clay, calcined clay; silica sand, fumed silica, calcined silica, precipitated silica, ground silica, fused silica; diatomaceous earth; iron oxide, zinc oxide, titanium oxide, barium oxide, magnesium oxide Magnesium carbonate, zinc carbonate; organic or inorganic fillers such as carbon black; and these fatty acids, resin acids, fatty acid ester-treated products, and fatty acid ester urethane compound-treated products. These may be used alone or in combination of two or more.
  • Examples of calcium carbonate include heavy calcium carbonate, precipitated calcium carbonate (light calcium carbonate), and colloidal calcium carbonate.
  • the surface treatment calcium carbonate surface-treated with a fatty acid, a resin acid, a fatty acid ester, a higher alcohol addition isocyanate compound, etc. can also be used.
  • Calcium carbonate may be used alone or in combination of two or more.
  • the catalyst examples include organometallic catalysts.
  • organometallic catalyst examples include lead catalysts such as lead octenoate and lead octylate; dibutyltin dilaurate, dioctyltin laurate, zinc octylate, and organic bismuth compounds.
  • a catalyst may be used individually by 1 type and may use 2 or more types together.
  • the method for producing the composition of the present embodiment is not particularly limited.
  • a main agent containing a urethane prepolymer and dimer acid and a curing agent containing polypropylene glycol and a wetting and dispersing agent can be separately mixed and prepared under a nitrogen gas atmosphere.
  • the composition of this embodiment can store a main ingredient and a hardening
  • a primer may be used to improve the adhesion between the coated surface and the cured product obtained by curing the composition of the present embodiment.
  • the composition of this embodiment has a main agent containing a urethane prepolymer and dimer acid, and a curing agent containing polypropylene glycol and a wetting and dispersing agent, and the content of dimer acid is urethane.
  • the composition is 0.15 parts by mass or more with respect to 100 parts by mass of the prepolymer, and the content of the wetting and dispersing agent is 0.15 parts by mass or more with respect to 100 parts by mass of the urethane prepolymer. If the composition of this embodiment is used, the bubble produced
  • pinhole resistance refers to the presence or absence of pinholes when the urethane coating surface is visually observed. If pinholes are not confirmed on the surface of the urethane coating obtained by curing the composition of the present embodiment, or if the number of pinholes confirmed on the surface of the urethane coating is less than a predetermined number, the pinhole resistance It is excellent. Moreover, if the number of pinholes confirmed on the surface of the urethane coating film is a predetermined number or more, the pinhole resistance is inferior.
  • the use, application conditions, and the like of the composition of the present embodiment are not particularly limited, but examples of the use include paints, waterproofing materials, flooring materials, and the like.
  • Examples of the application surface on which the composition of the present embodiment is applied include surfaces such as concrete, mortar, metal, and a urethane coating film to which a top coat is applied.
  • the composition of the present embodiment can be suitably used for a flat surface such as a floor surface of a building roof and a horizontal surface such as a veranda or a vertical surface such as an outer wall surface of a building.
  • DINP diisononyl phthalate
  • tolylene diisocyanate (Cosmonate T80, manufactured by Mitsui Takeda Chemical Co., Ltd.) was added thereto so that the equivalent ratio of NCO group / OH group was 1.98, and this was heated to 80 ° C. under a nitrogen atmosphere. The mixture was stirred and stirred for 12 hours to prepare a urethane prepolymer.
  • the content of NCO groups in the obtained urethane prepolymer was 3.0% by mass in the total amount of the urethane prepolymer.
  • ⁇ Preparation of two-component room temperature curable urethane film waterproofing material composition The main components and the components used as curing agents shown in Tables 1 to 3 below are blended in the addition amounts (parts by mass) shown in Tables 1 to 3, and these are mixed thoroughly using an electric stirrer or the like to mix the main components and curing agents. Prepared. Thoroughly mix 100 parts by mass of the main agents of Examples 1 and 3 in Tables 1 to 3 and 100 parts by mass of the curing agents of Examples 1 to 3 and Tables 1 to 3 in Tables 1 to 3 using an electric stirrer or the like. Thus, the two-component room temperature curable urethane coating film waterproofing material composition of each example and each comparative example was obtained.
  • dimer acid 2 aliphatic dicarboxylic acid , Trade name “UL-20”, manufactured by Okamura Seiyaku Co., Ltd., heavy calcium carbonate: trade name “Super SS”, manufactured by Maruo Calcium Co., Ltd., polypropylene glycol: trade name “EXCENOL 2020”, manufactured by Asahi Glass Co., Ltd., catalyst: Lead catalyst, Minico P-30, manufactured by Active Materials Chemical Co., Ltd./Wet Dispersant 1: Solution of polyammonium alkylammonium salt, trade name “BYK-W961”, manufactured by Big Chemie Japan Co., Ltd./Wet Dispersant 2: Unsaturated polycarboxylic acid polymer solution, trade name “BYK-W935”, manufactured by Big Chemie Japan
  • a urethane-based coating film waterproofing having a main agent containing a urethane prepolymer and a dimer acid, a curing agent containing a polypropylene glycol and a wetting and dispersing agent, and a specific amount of the dimer acid and the wetting and dispersing agent.
  • the material composition can be suitably used as a waterproof material that has excellent pinhole resistance and does not impair the appearance.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
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  • Materials Applied To Surfaces To Minimize Adherence Of Mist Or Water (AREA)

Abstract

This two-component room temperature curing-type urethane coating waterproof material composition is characterized by comprising a main agent that contains a urethane prepolymer and a dimer acid, and a curing agent that contains polypropylene glycol and a wetting and dispersing agent, wherein the content of the dimer acid is 0.15 or more parts by mass per 100 parts by mass of the urethane prepolymer, and the content of the wetting and dispersing agent is 0.15 or more parts by mass per 100 parts by mass of the urethane prepolymer.

Description

二液常温硬化型ウレタン塗膜防水材組成物Two-component room temperature curable urethane film waterproofing material composition
　本発明は、二液常温硬化型ウレタン塗膜防水材組成物に関する。 The present invention relates to a two-component room temperature curable urethane coating film waterproofing material composition.
　ポリウレタンは、建築、自動車など多方面において種々の用途に広く使用されており、例えば、防水材用組成物として建築物の外壁用の塗膜防水材等に用いられている。ウレタン系塗膜防水材は、例えば、建築物の屋上の床面及びベランダなどの水平面である平場や建築物の外壁面などの垂直面である立上がりの面全体にウレタン系の組成物（ウレタン塗膜防水材組成物）を塗装し硬化させ塗膜とすることによって、建築物への水の浸入、浸透を防ぐ防水材である。 Polyurethane is widely used in various fields such as architecture and automobiles. For example, it is used as a waterproof coating material for a coating film for an outer wall of a building. Urethane-based waterproofing membranes are, for example, urethane-based compositions (urethane coatings) on the entire surface of a building, such as a flat surface such as a floor surface of a building and a veranda, or a vertical surface such as an outer wall surface of a building. It is a waterproofing material that prevents the penetration and penetration of water into the building by coating and curing the membrane waterproofing material composition).
　従来、防水材用組成物として、ウレタンプレポリマーを含有する主剤と、活性水素基を有する化合物を含有する硬化剤とを混合したものが提案されている（例えば、特許文献１参照）。例えば、特許文献１には、ウレタンプレポリマーを含有する主剤と、活性水素基を有する化合物として、活性水素基を有する化合物の総質量に対して特定のジアミン化合物を１質量％以上の量で含有し、活性水素基を有する化合物の総質量に対してひまし油系ポリオールを２質量％以上の量で含有する硬化剤とを有する二液常温硬化型ウレタン塗膜防水材組成物が記載されている。この二液常温硬化型ウレタン塗膜防水材組成物を用いることで、消泡性に優れる塗膜防水材組成物が得られる。 Conventionally, as a composition for waterproofing material, a mixture of a main agent containing a urethane prepolymer and a curing agent containing a compound having an active hydrogen group has been proposed (for example, see Patent Document 1). For example, Patent Document 1 includes a main agent containing a urethane prepolymer and a compound having an active hydrogen group as a compound having an active hydrogen group, with a specific diamine compound in an amount of 1% by mass or more based on the total mass of the compound having an active hydrogen group. In addition, there is described a two-component room temperature curable urethane coating waterproofing material composition having a curing agent containing a castor oil-based polyol in an amount of 2% by mass or more based on the total mass of the compound having an active hydrogen group. By using this two-component room temperature curing urethane waterproof membrane composition, a waterproof membrane composition having excellent defoaming properties can be obtained.
特開２０１０－２６０９８８号公報JP 2010-260988 A
　しかしながら、特許文献１に記載のウレタン組成物を硬化させることによって得られるウレタン防水材は、下地からの空気がウレタン防水材中に進入して抜けきれずに表面に露出して穴が空いたような状態になるピンホールが発生してしまい、外観を損なうことがある。 However, the urethane waterproof material obtained by curing the urethane composition described in Patent Document 1 seems to be exposed and exposed on the surface without allowing air from the base to enter the urethane waterproof material to be removed. Pinholes may occur and the appearance may be impaired.
　そのため、ピンホールの発生を抑制することができる二液常温硬化型ウレタン塗膜防水材組成物が求められている。 Therefore, there is a demand for a two-component room-temperature-curing urethane coating film waterproofing material composition that can suppress the generation of pinholes.
　本発明は、前記問題に鑑み、ピンホールの発生を抑制することができる二液常温硬化型ウレタン塗膜防水材組成物を提供することを目的とする。 In view of the above problems, an object of the present invention is to provide a two-component room-temperature-curing urethane coating film waterproofing material composition that can suppress the generation of pinholes.
　本発明は、次に示す（１）である。
（１）　ウレタンプレポリマーとダイマー酸とを含有する主剤と、
　ポリプロピレングリコールと湿潤分散剤とを含有する硬化剤とを有し、
　前記ダイマー酸の含有量が、前記ウレタンプレポリマー１００質量部に対して０．１５質量部以上であり、
　前記湿潤分散剤の含有量が、前記ウレタンプレポリマー１００質量部に対して０．１５質量部以上であることを特徴とする二液常温硬化型ウレタン塗膜防水材組成物。 The present invention is as follows (1).
(1) a main agent containing a urethane prepolymer and dimer acid;
Having a curing agent containing polypropylene glycol and a wetting and dispersing agent;
The content of the dimer acid is 0.15 parts by mass or more with respect to 100 parts by mass of the urethane prepolymer,
Content of the said wet dispersing agent is 0.15 mass part or more with respect to 100 mass parts of said urethane prepolymers, The two-component room temperature curing type urethane coating waterproof material composition characterized by the above-mentioned.
　本発明によれば、ピンホールの発生を抑制することができるウレタン塗膜防水材組成物を得ることができる。 According to the present invention, it is possible to obtain a urethane coating film waterproofing material composition capable of suppressing the generation of pinholes.
　以下、この発明について詳細に説明する。なお、下記の発明を実施するための形態（以下、実施形態という。）により本発明が限定されるものではない。また、下記実施形態における構成要素には、当業者が容易に想定できるもの、実質的に同一のもの、いわゆる均等の範囲のものが含まれる。さらに、下記実施形態で開示した構成要素は適宜組み合わせることが可能である。 Hereinafter, the present invention will be described in detail. The present invention is not limited by the following modes for carrying out the invention (hereinafter referred to as embodiments). In addition, constituent elements in the following embodiments include those that can be easily assumed by those skilled in the art, those that are substantially the same, and those in a so-called equivalent range. Furthermore, the constituent elements disclosed in the following embodiments can be appropriately combined.
　本実施形態に係る二液常温硬化型ウレタン塗膜防水材組成物（以下、「本実施形態の組成物」という。）は、ウレタンプレポリマーとダイマー酸とを含有する主剤と、ポリプロピレングリコールと湿潤分散剤とを含有する硬化剤とを有し、ダイマー酸の含有量が、ウレタンプレポリマー１００質量部に対して０．１５質量部以上であり、湿潤分散剤の含有量が、ウレタンプレポリマー１００質量部に対して０．１５質量部以上であることを特徴とする組成物である。 The two-component room temperature curable urethane coating waterproof material composition (hereinafter referred to as “the composition of the present embodiment”) according to the present embodiment includes a main agent containing a urethane prepolymer and a dimer acid, polypropylene glycol, and wet. A curing agent containing a dispersant, the content of the dimer acid is 0.15 parts by mass or more with respect to 100 parts by mass of the urethane prepolymer, and the content of the wet dispersant is the urethane prepolymer 100. It is a composition characterized by being 0.15 parts by mass or more with respect to parts by mass.
＜主剤＞
　本実施形態の組成物に用いられる主剤は、ウレタンプレポリマーとダイマー酸とを含有する。 <Main agent>
The main agent used for the composition of this embodiment contains a urethane prepolymer and a dimer acid.
［ウレタンプレポリマー］
　主剤に含有されるウレタンプレポリマーは特に制限されない。例えば、従来公知のものが挙げられる。具体的には、例えば、ポリオール化合物とポリイソシアネート化合物とを、ヒドロキシ基に対してイソシアネート基（ＮＣＯ基）が過剰となるように反応させることにより得られる反応生成物が挙げられる。ウレタンプレポリマーは、０．５質量％以上５質量％以下のＮＣＯ基を分子末端に含有することができる。 [Urethane prepolymer]
The urethane prepolymer contained in the main agent is not particularly limited. For example, a conventionally well-known thing is mentioned. Specifically, for example, a reaction product obtained by reacting a polyol compound and a polyisocyanate compound so that an isocyanate group (NCO group) is excessive with respect to a hydroxy group can be mentioned. The urethane prepolymer can contain 0.5% by mass or more and 5% by mass or less of NCO groups at the molecular ends.
（ポリオール化合物）
　ポリオール化合物は、炭化水素に有する複数個の水素を、水酸基で置換した構造を持ったポリヒドロキシル化合物の総称である。ウレタンプレポリマーの製造の際に使用されるポリオール化合物は、ヒドロキシ基を２個以上有するものであれば特に限定されない。例えば、ポリエーテルポリオール、ポリエステルポリオール、その他のポリオール、これらの混合ポリオールが挙げられる。 (Polyol compound)
A polyol compound is a general term for polyhydroxyl compounds having a structure in which a plurality of hydrogen atoms in a hydrocarbon are substituted with hydroxyl groups. The polyol compound used in the production of the urethane prepolymer is not particularly limited as long as it has two or more hydroxy groups. For example, polyether polyol, polyester polyol, other polyols, and mixed polyols thereof can be used.
　ポリエーテルポリオールとして、例えば、エチレングリコール、ジエチレングリコール、プロピレングリコール、ジプロピレングリコール、グリセリン、１，１，１－トリメチロールプロパン、１，２，５－ヘキサントリオール、１，３－ブタンジオール、１，４－ブタンジオール及びペンタエリスリトールからなる群から選ばれる少なくとも１種に、エチレンオキサイド、プロピレンオキサイド、ブチレンオキサイド及びポリオキシテトラメチレンオキサイドからなる群から選ばれる少なくとも１種を付加させて得られるポリオールが挙げられる。 Examples of polyether polyols include ethylene glycol, diethylene glycol, propylene glycol, dipropylene glycol, glycerin, 1,1,1-trimethylolpropane, 1,2,5-hexanetriol, 1,3-butanediol, 1,4 -Polyol obtained by adding at least one selected from the group consisting of ethylene oxide, propylene oxide, butylene oxide and polyoxytetramethylene oxide to at least one selected from the group consisting of butanediol and pentaerythritol. .
　ポリエステルポリオールとして、例えば、エチレングリコール、プロピレングリコール、ブタンジオール、ペンタンジオール、ヘキサンジオール、グリセリン、１，１，１－トリメチロールプロパン及びその他の低分子ポリオールからなる群から選ばれる少なくとも１種と、グルタル酸、アジピン酸、ピメリン酸、スベリン酸、セバシン酸、ダイマー酸、その他の脂肪族カルボン酸及びオリゴマー酸からなる群から選ばれる少なくとも１種との縮合重合体；プロピオンラクトン、バレロラクトンの開環重合体が挙げられる。 Examples of the polyester polyol include at least one selected from the group consisting of ethylene glycol, propylene glycol, butanediol, pentanediol, hexanediol, glycerin, 1,1,1-trimethylolpropane, and other low molecular polyols, and glutar A condensation polymer with at least one selected from the group consisting of acids, adipic acid, pimelic acid, suberic acid, sebacic acid, dimer acid, other aliphatic carboxylic acids and oligomeric acids; ring-opening weight of propionlactone, valerolactone Coalesce is mentioned.
　その他のポリオールとして、例えば、ポリマーポリオール、ポリカーボネートポリオール；ポリブタジエンポリオール；水素添加されたポリブタジエンポリオール；アクリルポリオール；エチレングリコール、ジエチレングリコール、プロピレングリコール、ジプロピレングリコール、ブタンジオール、ペンタンジオール、ヘキサンジオールのような低分子量のポリオールが挙げられる。 Other polyols include, for example, polymer polyols, polycarbonate polyols; polybutadiene polyols; hydrogenated polybutadiene polyols; acrylic polyols; A molecular weight polyol may be mentioned.
　ポリオール化合物は、それぞれ単独でまたは２種以上を組み合わせて使用することができる。 Polyol compounds can be used alone or in combination of two or more.
（ポリイソシアネート化合物）
　ウレタンプレポリマーの製造の際に使用されるポリイソシアネート化合物は、分子内にイソシアネート基を２個以上有するものであれば特に限定されない。ポリイソシアネート化合物として、例えば、ＴＤＩ（例えば、２，４－トリレンジイソシアネート（２，４－ＴＤＩ）、２，６－トリレンジイソシアネート（２，６－ＴＤＩ））、ＭＤＩ（例えば、４，４’－ジフェニルメタンジイソシアネート（４，４’－ＭＤＩ）、２，４’－ジフェニルメタンジイソシアネート（２，４’－ＭＤＩ））、１，４－フェニレンジイソシアネート、ポリメチレンポリフェニレンポリイソシアネート、キシリレンジイソシアネート（ＸＤＩ）、テトラメチルキシリレンジイソシアネート（ＴＭＸＤＩ）、トリジンジイソシアネート（ＴＯＤＩ）、１，５－ナフタレンジイソシアネート（ＮＤＩ）、トリフェニルメタントリイソシアネート等のような芳香族ポリイソシアネート；ヘキサメチレンジイソシアネート（ＨＤＩ）、トリメチルヘキサメチレンジイソシアネート（ＴＭＨＤＩ）、リジンジイソシアネート、ノルボルナンジイソシアネート（ＮＢＤＩ）、エチレンジイソシアネート、プロピレンジイソシアネート、テトラメチレンジイソシアネートのような脂肪族ポリイソシアネート；トランスシクロヘキサン－１，４－ジイソシアネート、イソホロンジイソシアネート（ＩＰＤＩ）、ビス（イソシアネートメチル）シクロヘキサン（Ｈ6ＸＤＩ）、ジシクロヘキシルメタンジイソシアネート（Ｈ12ＭＤＩ）のような脂環式ポリイソシアネート；これらのカルボジイミド変性ポリイソシアネート；これらのイソシアヌレート変性ポリイソシアネートが挙げられる。 (Polyisocyanate compound)
The polyisocyanate compound used in the production of the urethane prepolymer is not particularly limited as long as it has two or more isocyanate groups in the molecule. Examples of the polyisocyanate compound include TDI (for example, 2,4-tolylene diisocyanate (2,4-TDI), 2,6-tolylene diisocyanate (2,6-TDI)), MDI (for example, 4,4 ′ -Diphenylmethane diisocyanate (4,4'-MDI), 2,4'-diphenylmethane diisocyanate (2,4'-MDI)), 1,4-phenylene diisocyanate, polymethylene polyphenylene polyisocyanate, xylylene diisocyanate (XDI), tetra Aromatic polyisocyanates such as methylxylylene diisocyanate (TMXDI), tolidine diisocyanate (TODI), 1,5-naphthalene diisocyanate (NDI), triphenylmethane triisocyanate; hexamethylene diisocyanate (H DI), trimethylhexamethylene diisocyanate (TMHDI), lysine diisocyanate, norbornane diisocyanate (NBDI), aliphatic polyisocyanates such as ethylene diisocyanate, propylene diisocyanate, tetramethylene diisocyanate; transcyclohexane-1,4-diisocyanate, isophorone diisocyanate (IPDI) ), Alicyclic polyisocyanates such as bis (isocyanatomethyl) cyclohexane (H 6 XDI), dicyclohexylmethane diisocyanate (H 12 MDI); these carbodiimide-modified polyisocyanates; and these isocyanurate-modified polyisocyanates.
　ポリイソシアネート化合物は、それぞれ単独でまたは２種以上を組み合わせて使用することができる。 Polyisocyanate compounds can be used alone or in combination of two or more.
　ポリオール化合物とポリイソシアネート化合物との組み合わせとしては、例えば、トリレンジイソシアネート（ＴＤＩ）、キシリレンジイソシアネート（ＸＤＩ）およびジフェニルメタンジイソシアネート（ＭＤＩ）からなる群から選ばれる少なくとも１種と、ポリプロピレンエーテルジオール及び／又はポリプロピレンエーテルトリオールとの組み合わせが挙げられる。 Examples of the combination of the polyol compound and the polyisocyanate compound include at least one selected from the group consisting of tolylene diisocyanate (TDI), xylylene diisocyanate (XDI), and diphenylmethane diisocyanate (MDI), polypropylene ether diol, and / or A combination with polypropylene ether triol is mentioned.
　ウレタンプレポリマーを製造する際のポリイソシアネート化合物とポリオール化合物との量は、イソシアネート基とヒドロキシル基との当量比（イソシアネート基（ＮＣＯ基）／ヒドロキシル基（ＯＨ基））が、１．２以上２．５以下となるのが好ましく、１．５以上２．０以下となるのがより好ましい。当量比とは、ポリオール化合物中のヒドロキシル基１個あたりのポリイソシアネート化合物中のイソシアネート基の比をいう。当量比がこのような範囲である場合、得られるウレタンプレポリマーの粘度が適当となり、組成物がより発泡しにくくなる。 The amount of the polyisocyanate compound and the polyol compound in producing the urethane prepolymer is such that the equivalent ratio of the isocyanate group to the hydroxyl group (isocyanate group (NCO group) / hydroxyl group (OH group)) is 1.2 or more. 0.5 or less is preferable, and 1.5 or more and 2.0 or less is more preferable. The equivalent ratio refers to the ratio of isocyanate groups in the polyisocyanate compound per hydroxyl group in the polyol compound. When the equivalence ratio is in such a range, the viscosity of the obtained urethane prepolymer becomes appropriate, and the composition becomes more difficult to foam.
　また、ウレタンプレポリマーの数平均分子量は２０００以上であり、２０００以上１５０００以下であることが好ましく、２０００以上１００００以下であることがより好ましい。 The number average molecular weight of the urethane prepolymer is 2000 or more, preferably 2000 or more and 15000 or less, more preferably 2000 or more and 10,000 or less.
　ウレタンプレポリマーの製造方法は、特に限定されるものではない。ウレタンプレポリマーは、上述の当量比のポリオール化合物とポリイソシアネート化合物とを５０℃～１３０℃で加熱攪拌して反応させることによって製造することができる。また、必要に応じて、例えば、有機スズ化合物、有機ビスマス、アミン等のウレタン化触媒を用いることができる。 The method for producing the urethane prepolymer is not particularly limited. The urethane prepolymer can be produced by reacting the polyol compound and the polyisocyanate compound having the above-mentioned equivalent ratio with heating and stirring at 50 ° C. to 130 ° C. Further, if necessary, for example, a urethanization catalyst such as an organic tin compound, an organic bismuth, or an amine can be used.
　ウレタンプレポリマーは、それぞれ単独でまたは２種以上を組み合わせて使用することができる。 Urethane prepolymers can be used alone or in combination of two or more.
［ダイマー酸］
　ダイマー酸は、多塩基性カルボン酸であれば特に限定されない。多塩基性カルボン酸として、例えば、飽和ジカルボン酸、不飽和ジカルボン酸、芳香族ジカルボン酸等が挙げられる。飽和ジカルボン酸として、グルタル酸、アジピン酸、アゼライン酸等が挙げられる。不飽和ジカルボン酸として、フマル酸、マレイン酸等が挙げられる。芳香族ジカルボン酸として、フタル酸、イソフタル酸、テレフタル酸等が挙げられる。　 [Dimer acid]
The dimer acid is not particularly limited as long as it is a polybasic carboxylic acid. Examples of the polybasic carboxylic acid include saturated dicarboxylic acid, unsaturated dicarboxylic acid, and aromatic dicarboxylic acid. Examples of the saturated dicarboxylic acid include glutaric acid, adipic acid, azelaic acid and the like. Examples of the unsaturated dicarboxylic acid include fumaric acid and maleic acid. Examples of the aromatic dicarboxylic acid include phthalic acid, isophthalic acid, terephthalic acid and the like.
　ジカルボン酸としては、脂肪族、脂環族及び芳香族ジカルボン酸から選ばれる少なくとも１種のジカルボン酸又はこれらの誘導体を用いることができる。ジカルボン酸の具体例として、例えば、シュウ酸、コハク酸、グルタル酸、アジピン酸、ピメリン酸、スベリン酸、アゼライン酸、セバシン酸、ドデカン二酸などの炭素数２～２５の直鎖脂肪族ジカルボン酸、又は、トリグリセリドの分留により得られる不飽和脂肪酸を二量化した炭素数１４～４８の二量化脂肪族ジカルボン酸（以下、ダイマー酸ともいう。）及びこれらの水素添加物（以下、水添ダイマー酸ともいう。）などの脂肪族ジカルボン酸、１，４－シクロヘキサンジカルボン酸などの脂環族ジカルボン酸、および、テレフタル酸、イソフタル酸などの芳香族ジカルボン酸を挙げることができる。これらのなかでも、ダイマー酸が好適に用いられる。 As the dicarboxylic acid, at least one dicarboxylic acid selected from aliphatic, alicyclic and aromatic dicarboxylic acids or derivatives thereof can be used. Specific examples of the dicarboxylic acid include straight chain aliphatic dicarboxylic acids having 2 to 25 carbon atoms such as oxalic acid, succinic acid, glutaric acid, adipic acid, pimelic acid, suberic acid, azelaic acid, sebacic acid, dodecanedioic acid, etc. Or a dimerized aliphatic dicarboxylic acid having 14 to 48 carbon atoms (hereinafter also referred to as dimer acid) obtained by dimerizing unsaturated fatty acids obtained by fractional distillation of triglycerides and hydrogenated products thereof (hereinafter referred to as hydrogenated dimers). And aliphatic dicarboxylic acids such as 1,4-cyclohexanedicarboxylic acid, and aromatic dicarboxylic acids such as terephthalic acid and isophthalic acid. Among these, dimer acid is preferably used.
　ダイマー酸としては市販品を用いることができる。市販されているダイマー酸として、具体的には、例えば、炭素数２２の長鎖脂肪族ジカルボン酸（ＩＰＵ－２２、岡村精油株式会社製）、炭素数２０の長鎖脂肪族ジカルボン酸（ＵＬ－２０、岡村精油株式会社製）などが好適に挙げられる。 Commercial products can be used as the dimer acid. Specific examples of commercially available dimer acids include long-chain aliphatic dicarboxylic acids having 22 carbon atoms (IPU-22, manufactured by Okamura Seiyaku Co., Ltd.), long-chain aliphatic dicarboxylic acids having 20 carbon atoms (UL-). 20, Okamura Essential Oil Co., Ltd.).
　ダイマー酸の含有量は、ウレタンプレポリマー１００質量部に対して０．１５質量部以上であり、好ましくは０．１５質量部以上１０質量部以下であり、より好ましくは０．１５質量部以上５質量部以下であり、さらに好ましくは０．１５質量部以上３質量部以下である。ダイマー酸の含有量が上記の範囲内である場合、本実施形態の組成物は、下地から進入した空気の泡を成長させて泡の膜を破壊させることができるため、ピンホールの発生を抑制することができる。 The content of the dimer acid is 0.15 parts by mass or more, preferably 0.15 parts by mass or more and 10 parts by mass or less, more preferably 0.15 parts by mass or more and 5 parts by mass with respect to 100 parts by mass of the urethane prepolymer. Or less, more preferably 0.15 parts by mass or more and 3 parts by mass or less. When the content of the dimer acid is within the above range, the composition of the present embodiment can grow bubbles of air that has entered from the base and destroy the foam film, thereby suppressing the generation of pinholes. can do.
＜硬化剤＞
　本実施形態の組成物に用いられる硬化剤は、ポリプロピレングリコールと湿潤分散剤とを含有する。 <Curing agent>
The curing agent used in the composition of this embodiment contains polypropylene glycol and a wetting and dispersing agent.
（ポリプロピレングリコール）
　硬化剤は、ポリプロピレングリコールを含む。また、硬化剤はポリプロピレングリコール以外のポリオール化合物を含有することができる。ポリプロピレングリコール以外のポリオール化合物は、ヒドロキシ基を２個以上有するものであり、例えば、ポリエーテルポリオール、ポリエステルポリオール、その他のポリオール、これらの混合ポリオールが挙げられる。ポリオール化合物として、具体的には、上述したウレタンプレポリマーに用いられるポリオール化合物と同様である。 (Polypropylene glycol)
The curing agent includes polypropylene glycol. The curing agent can contain a polyol compound other than polypropylene glycol. Polyol compounds other than polypropylene glycol have two or more hydroxy groups, and examples thereof include polyether polyols, polyester polyols, other polyols, and mixed polyols thereof. Specifically as a polyol compound, it is the same as that of the polyol compound used for the urethane prepolymer mentioned above.
（湿潤分散剤）
　湿潤分散剤としては、カルボキシル基、水酸基、酸エステルなどの極性基を有する化合物や高分子化合物、例えば、リン酸エステル類などの酸含有化合物、酸基を含む共重合物、水酸基含有ポリカルボン酸エステル、ポリシロキサン、長鎖ポリアミノアマイドと酸エステルの塩などを挙げることができる。 (Wet dispersant)
Examples of the wetting and dispersing agent include compounds having a polar group such as a carboxyl group, a hydroxyl group, and an acid ester, and polymer compounds such as acid-containing compounds such as phosphate esters, copolymers containing acid groups, and hydroxyl group-containing polycarboxylic acids. Examples include esters, polysiloxanes, salts of long-chain polyaminoamides and acid esters.
　湿潤分散剤は、１つの分子内に親水性基および疎水性基を併せ持つ構造を有する化合物であることが好ましい。親水性基および疎水性基は、それぞれ１分子内に少なくとも１個有するものが好ましい。 The wetting and dispersing agent is preferably a compound having a structure having both a hydrophilic group and a hydrophobic group in one molecule. It is preferable that each of the hydrophilic group and the hydrophobic group has at least one in one molecule.
　親水性基として、例えば、カルボキシ基、カルボニル基、ヒドロキシ基、アミノ基、－Ｃ（＝Ｏ）Ｏ－、－ＮＨＣＯＮＨ２、－（ＯＣＨ２ＣＨ２）ｎ－、－ＳＯ３Ｈ、－ＳＯ３Ｍ、－ＯＳＯ３Ｈ、－ＯＳＯ３Ｍ、－ＣＯＯＭ、－ＮＲ３Ｘが挙げられる。なお、Ｍとしては、例えば、ナトリウム、カリウムのようなアルカリ金属、－ＮＨ４が挙げられる。Ｒとしては、例えば、メチル基、エチル基、プロピル基、イソプロピル基のようなアルキル基が挙げられる。Ｘとしては、例えば、塩素原子、臭素原子のようなハロゲンが挙げられる。 As the hydrophilic group, eg, carboxy group, a carbonyl group, hydroxy group, amino group, -C (= O) O - , - NHCONH 2, - (OCH 2 CH 2) n -, - SO 3 H, -SO 3 M, —OSO 3 H, —OSO 3 M, —COOM, —NR 3 X can be mentioned. Examples of M include alkali metals such as sodium and potassium, and —NH 4 . Examples of R include alkyl groups such as a methyl group, an ethyl group, a propyl group, and an isopropyl group. Examples of X include halogen such as chlorine atom and bromine atom.
　中でも、カルボキシ基、カルボニル基、－Ｃ（＝Ｏ）Ｏ－、ヒドロキシ基、－（ＯＣＨ２ＣＨ２）ｎ－（ｎ＝３～２０）、－Ｃ（＝Ｏ）Ｏ－（ＯＣＨ２ＣＨ２）ｎ－ＣＨ３（ｎ＝５～１５）が好ましい。親水性基は、それぞれ単独でまたは２種以上を組み合わせて使用することができる。 Among them, a carboxy group, a carbonyl group, —C (═O) O—, a hydroxy group, — (OCH 2 CH 2 ) n — (n = 3 to 20), —C (═O) O— (OCH 2 CH 2 ) N —CH 3 (n = 5 to 15) is preferred. The hydrophilic groups can be used alone or in combination of two or more.
　疎水性基として、例えば、鎖状炭化水素基、シクロペンチル基、シクロヘキシル基、シクロヘキセニル基のような脂環式炭化水素基；フェニル基、トリル基、キシリル基、ベンジル基、スチリル基、ナフチル基のような芳香族炭化水素基；クロロメチル基、クロロエチル基、ブロモメチル基のようなハロゲン化アルキル基、オルガノシリコン基（－ＳｉＲ３（Ｒとしては、例えば、メチル基、エチル基、フェニル基））が挙げられる。 Examples of hydrophobic groups include alicyclic hydrocarbon groups such as chain hydrocarbon groups, cyclopentyl groups, cyclohexyl groups, and cyclohexenyl groups; phenyl groups, tolyl groups, xylyl groups, benzyl groups, styryl groups, and naphthyl groups. An aromatic hydrocarbon group such as: a halogenated alkyl group such as a chloromethyl group, a chloroethyl group, or a bromomethyl group, or an organosilicon group (—SiR 3 (R is, for example, a methyl group, an ethyl group, or a phenyl group)). Can be mentioned.
　鎖状炭化水素基として、例えば、炭素数５以上１５以下の鎖状飽和炭化水素基が挙げられる。具体的には、例えば、－ＣｎＨ２ｎ＋１（ｎ＝１０～１３）が挙げられる。なお、鎖状炭化水素基は分岐していてもよい。疎水性基は、それぞれ単独でまたは２種以上を組み合わせて使用することができる。 Examples of the chain hydrocarbon group include a chain saturated hydrocarbon group having 5 to 15 carbon atoms. Specifically, for example, -C n H 2n + 1 (n = 10 to 13) can be mentioned. The chain hydrocarbon group may be branched. Hydrophobic groups can be used alone or in combination of two or more.
　湿潤分散剤は、その骨格について、特に制限されない。親水性基および疎水性基を有する化合物の骨格としては、例えば、炭素原子を有するものが挙げられる。親水性基および疎水性基を有する化合物がオリゴマーまたはポリマーである場合、その骨格（主鎖）としては、例えば、炭化水素が挙げられる。また、親水性基および疎水性基を有する化合物の骨格は、二重結合を含有することができる。 The wetting and dispersing agent is not particularly limited with respect to its skeleton. Examples of the skeleton of the compound having a hydrophilic group and a hydrophobic group include those having a carbon atom. When the compound having a hydrophilic group and a hydrophobic group is an oligomer or a polymer, examples of the skeleton (main chain) include hydrocarbons. The skeleton of the compound having a hydrophilic group and a hydrophobic group can contain a double bond.
　湿潤分散剤は、化合物の骨格（オリゴマーまたはポリマーの場合は主鎖）に、例えば、窒素原子、酸素原子、硫黄原子、ケイ素原子を含有することができる。 The wetting and dispersing agent can contain, for example, a nitrogen atom, an oxygen atom, a sulfur atom, or a silicon atom in the skeleton of the compound (main chain in the case of an oligomer or polymer).
　本実施形態において、湿潤分散剤はダイマー酸を均一に分散させることができるという作用を有する。 In this embodiment, the wetting and dispersing agent has an effect that dimer acid can be uniformly dispersed.
　湿潤分散剤は、下地から進入した空気の泡を成長させて泡の膜を破壊させることができるという観点から、不飽和ポリカルボン酸ポリマー溶液を含有することが好ましい。 The wetting and dispersing agent preferably contains an unsaturated polycarboxylic acid polymer solution from the viewpoint of allowing air bubbles that have entered from the base to grow and destroying the foam film.
　また、湿潤分散剤は、下地から進入した空気の泡を成長させて泡の膜を破壊させることができるという観点から、塩基性基を含有することがさらに好ましい。塩基性基としては、アルキルアンモニウム塩などが好適に挙げられる。アルキルアンモニウム塩を含む湿潤分散剤として、例えば、ポリカルボン酸のアルキルアンモニウム塩の溶液が好適に挙げられる。 Further, it is more preferable that the wetting and dispersing agent contains a basic group from the viewpoint that air bubbles entering from the base can be grown and the foam film can be destroyed. Suitable examples of the basic group include alkyl ammonium salts. Preferable examples of the wetting and dispersing agent containing an alkyl ammonium salt include a solution of an alkyl ammonium salt of a polycarboxylic acid.
　湿潤分散剤としては市販品を用いることができる。市販されている湿潤分散剤として、具体的には、例えば、ＢＹＫ－Ｗ９６１、ＢＹＫ－Ｗ９３５（ビックケミー・ジャパン株式会社製）などが好適に挙げられる。 Commercial products can be used as the wetting and dispersing agent. Specific examples of commercially available wetting and dispersing agents include BYK-W961, BYK-W935 (manufactured by Big Chemie Japan Co., Ltd.) and the like.
　湿潤分散剤の含有量は、ウレタンプレポリマー１００質量部に対して０．１５質量部以上であり、好ましくは０．１５質量部以上１０質量部以下であり、より好ましくは０．１５質量部以上５質量部以下であり、さらに好ましくは０．１５質量部以上１量部以下である。湿潤分散剤の含有量が上記の範囲内である場合、本実施形態の組成物は下地から進入した空気の泡を成長させて泡の膜を破壊させることができるため、ピンホールの発生を抑制することができる。また、湿潤分散剤の含有量は、ダイマー酸を均一に分散させるという観点から、ダイマー酸の含有量に比例して増減させることが好ましい。 The content of the wetting and dispersing agent is 0.15 parts by mass or more with respect to 100 parts by mass of the urethane prepolymer, preferably 0.15 parts by mass or more and 10 parts by mass or less, more preferably 0.15 parts by mass or more. 5 parts by mass or less, more preferably 0.15 parts by mass or more and 1 part by mass or less. When the content of the wetting and dispersing agent is within the above range, the composition of the present embodiment can grow bubbles of air that has entered from the base and destroy the foam film, thereby suppressing the generation of pinholes. can do. Further, the content of the wetting and dispersing agent is preferably increased or decreased in proportion to the content of the dimer acid from the viewpoint of uniformly dispersing the dimer acid.
　本実施形態の組成物に含まれる主剤及び硬化剤は、本実施形態の目的を損なわない範囲で、必要に応じて、各種の添加剤を含有することができる。添加剤としては、充填剤、触媒、可塑剤、老化防止剤、酸化防止剤、帯電防止剤、難燃剤、接着性付与剤、安定剤、分散剤、溶剤、顔料、染料などが挙げられる。各添加剤は適宜、組み合わせて用いることができる。これらの添加剤の配合量は本実施形態の目的に反しない限り、従来の一般的な配合量とすることができる。 </ RTI> The main agent and the curing agent contained in the composition of the present embodiment can contain various additives as necessary within a range that does not impair the purpose of the present embodiment. Examples of the additive include a filler, a catalyst, a plasticizer, an anti-aging agent, an antioxidant, an antistatic agent, a flame retardant, an adhesion imparting agent, a stabilizer, a dispersant, a solvent, a pigment, and a dye. Each additive can be used in combination as appropriate. The blending amounts of these additives can be conventional conventional blending amounts as long as the object of the present embodiment is not violated.
　充填剤として、各種形状の有機または無機のものが挙げられる。例えば、炭酸カルシウム、ろう石クレー、カオリンクレー、焼成クレー；ケイ砂、ヒュームドシリカ、焼成シリカ、沈降シリカ、粉砕シリカ、溶融シリカ；珪藻土；酸化鉄、酸化亜鉛、酸化チタン、酸化バリウム、酸化マグネシウム；炭酸マグネシウム、炭酸亜鉛；カーボンブラック等の有機または無機充填剤；これらの脂肪酸、樹脂酸、脂肪酸エステル処理物、脂肪酸エステルウレタン化合物処理物が挙げられる。これらは、１種単独で用いてもよく、２種以上を併用してもよい。 ∙ Examples of fillers include organic or inorganic materials of various shapes. For example, calcium carbonate, wax stone clay, kaolin clay, calcined clay; silica sand, fumed silica, calcined silica, precipitated silica, ground silica, fused silica; diatomaceous earth; iron oxide, zinc oxide, titanium oxide, barium oxide, magnesium oxide Magnesium carbonate, zinc carbonate; organic or inorganic fillers such as carbon black; and these fatty acids, resin acids, fatty acid ester-treated products, and fatty acid ester urethane compound-treated products. These may be used alone or in combination of two or more.
　炭酸カルシウムとして、例えば、重質炭酸カルシウム、沈降性炭酸カルシウム（軽質炭酸カルシウム）、コロイダル炭酸カルシウムが挙げられる。また、脂肪酸、樹脂酸、脂肪酸エステル、高級アルコール付加イソシアネート化合物等により表面処理された表面処理炭酸カルシウムも用いることができる。炭酸カルシウムは、１種単独で用いてもよく、２種以上を併用してもよい。 Examples of calcium carbonate include heavy calcium carbonate, precipitated calcium carbonate (light calcium carbonate), and colloidal calcium carbonate. Moreover, the surface treatment calcium carbonate surface-treated with a fatty acid, a resin acid, a fatty acid ester, a higher alcohol addition isocyanate compound, etc. can also be used. Calcium carbonate may be used alone or in combination of two or more.
　触媒として、例えば、有機金属系触媒が挙げられる。有機金属系触媒としては、例えば、オクテン酸鉛、オクチル酸鉛のような鉛系触媒；ジブチルスズジラウレート、ジオクチルスズラウレート、オクチル酸亜鉛、有機ビスマス化合物が挙げられる。触媒は、１種単独で用いてもよく、２種以上を併用してもよい。 Examples of the catalyst include organometallic catalysts. Examples of the organometallic catalyst include lead catalysts such as lead octenoate and lead octylate; dibutyltin dilaurate, dioctyltin laurate, zinc octylate, and organic bismuth compounds. A catalyst may be used individually by 1 type and may use 2 or more types together.
　本実施形態の組成物の製造方法については特に限定されるものではない。例えば、ウレタンプレポリマーとダイマー酸とを含有する主剤と、ポリプロピレングリコールと湿潤分散剤とを含有する硬化剤とを別々に窒素ガス雰囲気下で十分に混合し調製することができる。本実施形態の組成物は、主剤と硬化剤とを別々に容器にて保管し、使用時に主剤と硬化剤とを混合して用いることができる。 The method for producing the composition of the present embodiment is not particularly limited. For example, a main agent containing a urethane prepolymer and dimer acid and a curing agent containing polypropylene glycol and a wetting and dispersing agent can be separately mixed and prepared under a nitrogen gas atmosphere. The composition of this embodiment can store a main ingredient and a hardening | curing agent separately in a container, and can mix and use a main ingredient and a hardening | curing agent at the time of use.
　本実施形態の組成物を施工する前に、塗布面と本実施形態の組成物を硬化して得られる硬化物との接着性を向上させるため、プライマーを使用してもよい。 Before applying the composition of the present embodiment, a primer may be used to improve the adhesion between the coated surface and the cured product obtained by curing the composition of the present embodiment.
　このように、本実施形態の組成物は、ウレタンプレポリマーとダイマー酸とを含有する主剤と、ポリプロピレングリコールと湿潤分散剤とを含有する硬化剤とを有し、ダイマー酸の含有量が、ウレタンプレポリマー１００質量部に対して０．１５質量部以上であり、湿潤分散剤の含有量が、ウレタンプレポリマー１００質量部に対して０．１５質量部以上である組成物である。本実施形態の組成物を用いれば、組成物中に進入した空気により発生した泡を成長させて泡の膜を破壊させることができる。よって、本実施形態の組成物を用いれば、ピンホールの発生を抑制することができ耐ピンホール性に優れるため、外観を損なうことがないウレタン塗膜防水材を得ることができる。 Thus, the composition of this embodiment has a main agent containing a urethane prepolymer and dimer acid, and a curing agent containing polypropylene glycol and a wetting and dispersing agent, and the content of dimer acid is urethane. The composition is 0.15 parts by mass or more with respect to 100 parts by mass of the prepolymer, and the content of the wetting and dispersing agent is 0.15 parts by mass or more with respect to 100 parts by mass of the urethane prepolymer. If the composition of this embodiment is used, the bubble produced | generated by the air which approached in the composition can be grown, and the film | membrane of a bubble can be destroyed. Therefore, if the composition of this embodiment is used, since the generation | occurrence | production of a pinhole can be suppressed and it is excellent in pinhole resistance, the urethane coating-film waterproof material which does not impair an external appearance can be obtained.
　本実施形態において、耐ピンホール性とは、ウレタン塗膜表面を目視で観察した時のピンホールの有無をいう。本実施形態の組成物を硬化させて得られるウレタン塗膜の表面にピンホールが確認されない、又はウレタン塗膜の表面に確認されたピンホールの数が所定数未満であれば耐ピンホール性に優れるという。また、ウレタン塗膜の表面に確認されたピンホールの数が所定数以上であれば耐ピンホール性に劣るという。 In this embodiment, pinhole resistance refers to the presence or absence of pinholes when the urethane coating surface is visually observed. If pinholes are not confirmed on the surface of the urethane coating obtained by curing the composition of the present embodiment, or if the number of pinholes confirmed on the surface of the urethane coating is less than a predetermined number, the pinhole resistance It is excellent. Moreover, if the number of pinholes confirmed on the surface of the urethane coating film is a predetermined number or more, the pinhole resistance is inferior.
　本実施形態の組成物は、その用途、適用条件等は特に限定されるものではないが、用途として、例えば、塗料、防水材、床材などが挙げられる。本実施形態の組成物を塗布する塗布面として、例えば、コンクリート、モルタル、金属、トップコートが塗布されたウレタン塗膜などの表面が挙げられる。本実施形態の組成物は、建築物の屋上の床面及びベランダなどの水平面である平場や建築物の外壁面などの垂直面などに好適に用いることができる。 The use, application conditions, and the like of the composition of the present embodiment are not particularly limited, but examples of the use include paints, waterproofing materials, flooring materials, and the like. Examples of the application surface on which the composition of the present embodiment is applied include surfaces such as concrete, mortar, metal, and a urethane coating film to which a top coat is applied. The composition of the present embodiment can be suitably used for a flat surface such as a floor surface of a building roof and a horizontal surface such as a veranda or a vertical surface such as an outer wall surface of a building.
　以下に、実施例を示して本発明を具体的に説明する。ただし、本発明はこれらに限定されない。 Hereinafter, the present invention will be specifically described with reference to examples. However, the present invention is not limited to these.
＜ウレタンプレポリマーの調製＞
　数平均分子量４０００のポリプロピレンエーテルトリオール１００ｇ（Ｇ－４０００、旭硝子株式会社製）と、数平均分子量２０００のポリプロピレンエーテルジオール１５０ｇ（Ｄ－２０００、旭硝子株式会社製）とを反応容器に入れて、粘度調節のために可塑剤としてフタル酸ジイソノニル１５ｇ（ＤＩＮＰ、株式会社ジェイ・プラス製）を加え、１１０℃に加熱し、６時間脱水処理した。次いで、ここにトリレンジイソシアネート（コスモネートＴ８０、三井武田ケミカル株式会社製）をＮＣＯ基／ＯＨ基の当量比が１．９８となるように加え、これを８０℃に加熱し、窒素雰囲気下で１２時間混合、攪拌し、ウレタンプレポリマーを調製した。得られたウレタンプレポリマーのＮＣＯ基の含有量は、ウレタンプレポリマー全量中、３．０質量％であった。 <Preparation of urethane prepolymer>
100 g of polypropylene ether triol having a number average molecular weight of 4000 (G-4000, manufactured by Asahi Glass Co., Ltd.) and 150 g of polypropylene ether diol having a number average molecular weight of 2000 (D-2000, manufactured by Asahi Glass Co., Ltd.) are placed in a reaction vessel to adjust the viscosity. Therefore, 15 g of diisononyl phthalate (DINP, manufactured by J Plus Co., Ltd.) was added as a plasticizer, heated to 110 ° C., and dehydrated for 6 hours. Next, tolylene diisocyanate (Cosmonate T80, manufactured by Mitsui Takeda Chemical Co., Ltd.) was added thereto so that the equivalent ratio of NCO group / OH group was 1.98, and this was heated to 80 ° C. under a nitrogen atmosphere. The mixture was stirred and stirred for 12 hours to prepare a urethane prepolymer. The content of NCO groups in the obtained urethane prepolymer was 3.0% by mass in the total amount of the urethane prepolymer.
＜二液常温硬化型ウレタン塗膜防水材組成物の調製＞
　下記表１～３に示す主剤及び硬化剤として用いる各成分を表１～３に示す添加量（質量部）で配合し、これらを電動攪拌機等を用いて十分に混合して主剤及び硬化剤を調製した。表１～３の各実施例及び各比較例の主剤１００質量部と、表１～３の各実施例及び各比較例の硬化剤１００質量部とを電動攪拌機等を用いて十分に混合することにより各実施例及び各比較例の二液常温硬化型ウレタン塗膜防水材組成物を得た。 <Preparation of two-component room temperature curable urethane film waterproofing material composition>
The main components and the components used as curing agents shown in Tables 1 to 3 below are blended in the addition amounts (parts by mass) shown in Tables 1 to 3, and these are mixed thoroughly using an electric stirrer or the like to mix the main components and curing agents. Prepared. Thoroughly mix 100 parts by mass of the main agents of Examples 1 and 3 in Tables 1 to 3 and 100 parts by mass of the curing agents of Examples 1 to 3 and Tables 1 to 3 in Tables 1 to 3 using an electric stirrer or the like. Thus, the two-component room temperature curable urethane coating film waterproofing material composition of each example and each comparative example was obtained.
＜評価＞
［耐ピンホール性の評価］
　得られた二液常温硬化型ウレタン塗膜防水材組成物を用いて、耐ピンホール性を以下のとおり評価した。結果を表１～３に示す。 <Evaluation>
[Evaluation of pinhole resistance]
Using the obtained two-component room temperature curable urethane coating film waterproof material composition, the pinhole resistance was evaluated as follows. The results are shown in Tables 1 to 3.
（耐ピンホール性）
　コンクリート片（７ｃｍ×７ｃｍ）の表面に上記で調製して得られた各実施例及び各比較例の二液常温硬化型ウレタン塗膜防水材組成物を塗布し、４０℃、９０％ＲＨの条件下でオートクレーブ中で２４時間養生して硬化させた。養生後、各硬化物の表面状態を目視で確認し、耐ピンホール性を下記評価基準に基づいて評価した。結果を表１～３に示す。
（評価基準）
○：ウレタン塗膜の表面にピンホールの数が１０個未満確認された、又はピンホールが確認されない
×：ウレタン塗膜の表面にピンホールの数が１０個以上確認された (Pinhole resistance)
Applying the two-component room-temperature-curing urethane coating waterproofing composition of each Example and each Comparative Example prepared above on the surface of a concrete piece (7 cm × 7 cm), conditions of 40 ° C. and 90% RH Under curing in an autoclave for 24 hours. After curing, the surface state of each cured product was visually confirmed, and pinhole resistance was evaluated based on the following evaluation criteria. The results are shown in Tables 1 to 3.
(Evaluation criteria)
○: The number of pinholes was confirmed to be less than 10 on the surface of the urethane coating film, or no pinholes were confirmed ×: The number of pinholes was confirmed to be 10 or more on the surface of the urethane coating film
Figure JPOXMLDOC01-appb-T000001
Figure JPOXMLDOC01-appb-T000001
Figure JPOXMLDOC01-appb-T000002
Figure JPOXMLDOC01-appb-T000002
Figure JPOXMLDOC01-appb-T000003
Figure JPOXMLDOC01-appb-T000003
　表１～３に示されている各成分は、以下のとおりである。
・ウレタンプレポリマー：商品名「Ｕ－８０００Ａ」、横浜ゴム株式会社製
・ダイマー酸１：脂肪族ジカルボン酸、商品名「ＩＰＵ－２２」、岡村精油株式会社製
・ダイマー酸２：脂肪族ジカルボン酸、商品名「ＵＬ－２０」、岡村精油株式会社製
・重質炭酸カルシウム：商品名「スーパーＳＳ」、丸尾カルシウム株式会社製
・ポリプロピレングリコール：商品名「ＥＸＣＥＮＯＬ　２０２０」、旭硝子株式会社製
・触媒：鉛触媒、ミニコＰ－３０、活材ケミカル株式会社製
・湿潤分散剤１：ポリカルボン酸のアルキルアンモニウム塩の溶液、商品名「ＢＹＫ－Ｗ９６１」、ビックケミー・ジャパン株式会社製
・湿潤分散剤２：不飽和ポリカルボン酸ポリマー溶液、商品名「ＢＹＫ－Ｗ９３５」、ビックケミー・ジャパン株式会社製 Each component shown in Tables 1 to 3 is as follows.
Urethane prepolymer: trade name “U-8000A”, manufactured by Yokohama Rubber Co., Ltd. • dimer acid 1: aliphatic dicarboxylic acid, trade name “IPU-22”, manufactured by Okamura Seiyaku Co., Ltd. • dimer acid 2: aliphatic dicarboxylic acid , Trade name “UL-20”, manufactured by Okamura Seiyaku Co., Ltd., heavy calcium carbonate: trade name “Super SS”, manufactured by Maruo Calcium Co., Ltd., polypropylene glycol: trade name “EXCENOL 2020”, manufactured by Asahi Glass Co., Ltd., catalyst: Lead catalyst, Minico P-30, manufactured by Active Materials Chemical Co., Ltd./Wet Dispersant 1: Solution of polyammonium alkylammonium salt, trade name “BYK-W961”, manufactured by Big Chemie Japan Co., Ltd./Wet Dispersant 2: Unsaturated polycarboxylic acid polymer solution, trade name “BYK-W935”, manufactured by Big Chemie Japan
　表１～３に示す結果から明らかなように、実施例１～２２の各ウレタン系塗膜防水材は、耐ピンホール性が良好であり、耐ピンホール性に優れることが確認された。これに対し、比較例１～７の各ウレタン系塗膜防水材は、耐ピンホール性に劣ることが確認された。 As is clear from the results shown in Tables 1 to 3, it was confirmed that each of the urethane coating film waterproof materials of Examples 1 to 22 had good pinhole resistance and excellent pinhole resistance. In contrast, it was confirmed that each of the urethane-based waterproofing films of Comparative Examples 1 to 7 was inferior in pinhole resistance.
　よって、実施例１～２２の各ウレタン系塗膜防水材の方が、比較例１～７の各ウレタン系塗膜防水材と比べて、耐ピンホール性に優れることが判明した。 Therefore, it was found that the urethane-based waterproofing films of Examples 1 to 22 were superior in pinhole resistance compared to the urethane-based waterproofing films of Comparative Examples 1 to 7.
　このように、ウレタンプレポリマーとダイマー酸とを含有する主剤と、ポリプロピレングリコールと湿潤分散剤とを含有する硬化剤とを有し、ダイマー酸と湿潤分散剤とを特定量含むウレタン系塗膜防水材組成物は、耐ピンホール性に優れ、外観を損なうことがない防水材として好適に用いることができる。 Thus, a urethane-based coating film waterproofing having a main agent containing a urethane prepolymer and a dimer acid, a curing agent containing a polypropylene glycol and a wetting and dispersing agent, and a specific amount of the dimer acid and the wetting and dispersing agent. The material composition can be suitably used as a waterproof material that has excellent pinhole resistance and does not impair the appearance.

Claims (1)

  1. 　ウレタンプレポリマーとダイマー酸とを含有する主剤と、
    　ポリプロピレングリコールと湿潤分散剤とを含有する硬化剤とを有し、
    　前記ダイマー酸の含有量が、前記ウレタンプレポリマー１００質量部に対して０．１５質量部以上であり、
    　前記湿潤分散剤の含有量が、前記ウレタンプレポリマー１００質量部に対して０．１５質量部以上であることを特徴とする二液常温硬化型ウレタン塗膜防水材組成物。     A main agent containing a urethane prepolymer and dimer acid;
    Having a curing agent containing polypropylene glycol and a wetting and dispersing agent;
    The content of the dimer acid is 0.15 parts by mass or more with respect to 100 parts by mass of the urethane prepolymer,
    Content of the said wet dispersing agent is 0.15 mass part or more with respect to 100 mass parts of said urethane prepolymers, The two-component room temperature curing type urethane coating waterproof material composition characterized by the above-mentioned.
PCT/JP2013/064396 2012-06-11 2013-05-23 Two-component room temperature curing-type urethane coating waterproof material composition WO2013187208A1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016176004A (en) * 2015-03-20 2016-10-06 横浜ゴム株式会社 Two-liquid room temperature curing type urethane coating film waterproof material composition
JP2018172476A (en) * 2017-03-31 2018-11-08 横浜ゴム株式会社 Two-liquid curable urethane coated film waterproof material composition

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004308407A (en) * 2003-03-27 2004-11-04 Sk Kaken Co Ltd Coating film waterproofing material
JP2008106187A (en) * 2006-10-27 2008-05-08 Inoac Corp Sealing material
JP2008184554A (en) * 2007-01-30 2008-08-14 Yokohama Rubber Co Ltd:The Two-pack type room temperature-curing urethane coating waterproof material composition
JP2008285582A (en) * 2007-05-17 2008-11-27 Yokohama Rubber Co Ltd:The Two-pack curing type polyurethane-based sealant composition
JP2010260988A (en) * 2009-05-11 2010-11-18 Yokohama Rubber Co Ltd:The Urethane coating film water-proof material composition of two-pack ordinary temperature curing type
JP2011127036A (en) * 2009-12-18 2011-06-30 Yokohama Rubber Co Ltd:The Two-pack type ordinary temperature-curable urethane coating film water-resistant composition

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004308407A (en) * 2003-03-27 2004-11-04 Sk Kaken Co Ltd Coating film waterproofing material
JP2008106187A (en) * 2006-10-27 2008-05-08 Inoac Corp Sealing material
JP2008184554A (en) * 2007-01-30 2008-08-14 Yokohama Rubber Co Ltd:The Two-pack type room temperature-curing urethane coating waterproof material composition
JP2008285582A (en) * 2007-05-17 2008-11-27 Yokohama Rubber Co Ltd:The Two-pack curing type polyurethane-based sealant composition
JP2010260988A (en) * 2009-05-11 2010-11-18 Yokohama Rubber Co Ltd:The Urethane coating film water-proof material composition of two-pack ordinary temperature curing type
JP2011127036A (en) * 2009-12-18 2011-06-30 Yokohama Rubber Co Ltd:The Two-pack type ordinary temperature-curable urethane coating film water-resistant composition

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016176004A (en) * 2015-03-20 2016-10-06 横浜ゴム株式会社 Two-liquid room temperature curing type urethane coating film waterproof material composition
JP2018172476A (en) * 2017-03-31 2018-11-08 横浜ゴム株式会社 Two-liquid curable urethane coated film waterproof material composition

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