JP2003073611A5 - - Google Patents

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JP2003073611A5
JP2003073611A5 JP2001265031A JP2001265031A JP2003073611A5 JP 2003073611 A5 JP2003073611 A5 JP 2003073611A5 JP 2001265031 A JP2001265031 A JP 2001265031A JP 2001265031 A JP2001265031 A JP 2001265031A JP 2003073611 A5 JP2003073611 A5 JP 2003073611A5
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JP
Japan
Prior art keywords
group
polymerizable unsaturated
unsaturated monomer
liquid
isocyanate
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JP2001265031A
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Japanese (ja)
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JP2003073611A (en
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Description

【特許請求の範囲】
【請求項1】
アクリルエマルジョンであるA液と、水分散性ポリイソシアネートを必須とするB液との組み合わせからなり、
前記A液は、水酸基を有する重合性不飽和単量体を5〜30重量%、シクロアルキル基を有する重合性不飽和単量体を5〜90重量部それぞれ含むとともに、グリシジル基を有する重合性不飽和単量体、イソシアネート基を有する重合性不飽和単量体および下記一般式(1)で表されるアルコキシシリル基を有する重合性不飽和単量体からなる群より選ばれる少なくとも1つをさらに含む単量体混合物を重合してなる共重合体をその樹脂成分として含有し、かつ、
前記A液とB液の配合割合が、前記水酸基を有する重合性不飽和単量体の水酸基に対する前記水分散性ポリイソシアネートのイソシアネート基の当量比が0.5〜2.5となる配合割合である
水系コーティング組成物。
(R −Si−(R 4−n (1)
(ただし、式(1)中、R はラジカル重合性基を表し、R は水素原子ハロゲン原子、アルコキシ基、アシロキシ基、フェノキシ基、アリールオキシ基、メルカプト基、アミノ基、アミド基、アミノオキシ基、イミノオキシ基およびアルケニルオキシ基からなる群より選ばれる少なくとも1つを表し、nは1から3までの整数であるとする。)
【請求項2】
前記単量体混合物が、グリシジル基を有する重合性不飽和単量体を含む混合物である、請求項1に記載の水系コーティング組成物。
【請求項3】
前記単量体混合物が、紫外線安定性の重合性不飽和単量体および/または紫外線吸収性の重合性不飽和単量体をさらに含む混合物である、請求項1または2に記載の水系コーティング組成物。
【請求項4】
前記A液はアンモニアおよび/または3級アミン化合物によりpHが5〜10に中和されている、請求項1から3までのいずれかに記載の水系コーティング組成物。
【請求項5】
塗料組成物である、請求項1から4までのいずれかに記載の水系コーティング組成物。
【請求項6】
建築外装塗替え用塗料組成物である、請求項5に記載の水系コーティング塗料組成物。
[Claims]
(1)
It consists of a combination of A liquid which is an acrylic emulsion and B liquid which requires a water-dispersible polyisocyanate,
Wherein A liquid polymerizable unsaturated monomer having a water group with 5 to 30 wt%, a polymerizable unsaturated monomer having a cycloalkyl group together with each contain 5-90 parts by weight, a glycidyl group At least one selected from the group consisting of a polymerizable unsaturated monomer, a polymerizable unsaturated monomer having an isocyanate group, and a polymerizable unsaturated monomer having an alkoxysilyl group represented by the following general formula (1) Containing as a resin component a copolymer obtained by polymerizing a monomer mixture further containing one , and
The mixing ratio of the liquid A and liquid B are, at the mixing ratio equivalent ratio of isocyanate groups of the water-dispersible polyisocyanate to the hydroxyl group of the polymerizable unsaturated monomer having a hydroxyl group is 0.5 to 2.5 Yes ,
Water-based coating composition.
(R 1 ) n -Si- (R 2 ) 4-n (1)
(Wherein, in the formula (1), R 1 represents a radical polymerizable group, and R 2 represents a hydrogen atom, a halogen atom, an alkoxy group, an acyloxy group, a phenoxy group, an aryloxy group, a mercapto group, an amino group, an amide group, an amino group Represents at least one selected from the group consisting of an oxy group, an iminooxy group and an alkenyloxy group, and n is an integer of 1 to 3)
(2)
The aqueous coating composition according to claim 1, wherein the monomer mixture is a mixture containing a polymerizable unsaturated monomer having a glycidyl group.
(3)
The aqueous coating composition according to claim 1 or 2, wherein the monomer mixture is a mixture further containing a UV-stable polymerizable unsaturated monomer and / or a UV-absorbable polymerizable unsaturated monomer. object.
(4)
The aqueous coating composition according to any one of claims 1 to 3, wherein the solution A is neutralized to a pH of 5 to 10 with ammonia and / or a tertiary amine compound.
(5)
The aqueous coating composition according to any one of claims 1 to 4, which is a coating composition.
6.
The water-based coating composition according to claim 5, which is a coating composition for repainting an architectural exterior.

すなわち、本発明にかかる水系コーティング組成物は、アクリルエマルジョンであるA液と、水分散性ポリイソシアネートを必須とするB液との組み合わせからなり、前記A液は、水酸基を有する重合性不飽和単量体を5〜30重量%、シクロアルキル基を有する重合性不飽和単量体を5〜90重量部それぞれ含むとともに、グリシジル基を有する重合性不飽和単量体、イソシアネート基を有する重合性不飽和単量体および下記一般式(1)で表されるアルコキシシリル基を有する重合性不飽和単量体からなる群より選ばれる少なくとも1つをさらに含む単量体混合物を重合してなる共重合体をその樹脂成分として含有し、かつ、前記A液とB液の配合割合が、前記水酸基を有する重合性不飽和単量体の水酸基に対する前記水分散性ポリイソシアネートのイソシアネート基の当量比が0.5〜2.5となる配合割合である
(R −Si−(R 4−n (1)
(ただし、式(1)中、R はラジカル重合性基を表し、R は水素原子ハロゲン原子、アルコキシ基、アシロキシ基、フェノキシ基、アリールオキシ基、メルカプト基、アミノ基、アミド基、アミノオキシ基、イミノオキシ基およびアルケニルオキシ基からなる群より選ばれる少なくとも1つを表し、nは1から3までの整数であるとする。)
That is, the water-based coating composition according to the present invention, a combination of the liquid A is an acrylic emulsion, and B liquid essentially containing water dispersible polyisocyanate, wherein A liquid polymerizable unsaturated with water acid groups 5 to 90 parts by weight of a polymerizable unsaturated monomer having a cycloalkyl group and 5 to 90 parts by weight of a polymerizable unsaturated monomer having a glycidyl group and a polymer having an isocyanate group A monomer mixture further containing at least one selected from the group consisting of a polymerizable unsaturated monomer having an alkoxysilyl group represented by the following general formula (1): containing copolymer as the resin component, and the mixing ratio of the liquids a and B are the water-dispersible polyiso the hydroxyl group of the polymerizable unsaturated monomer having a hydroxyl group The equivalent ratio of the isocyanate groups of Aneto is compounded ratio to form 0.5 to 2.5.
(R 1 ) n -Si- (R 2 ) 4-n (1)
(Wherein, in the formula (1), R 1 represents a radical polymerizable group, and R 2 represents a hydrogen atom, a halogen atom, an alkoxy group, an acyloxy group, a phenoxy group, an aryloxy group, a mercapto group, an amino group, an amide group, and an amino group. Represents at least one selected from the group consisting of an oxy group, an iminooxy group and an alkenyloxy group, and n is an integer of 1 to 3)

【0009】
【発明の実施形態】
本発明の水系コーティング組成物は、アクリルエマルジョンであるA液と、水分散性ポリイソシアネートを必須に含むB液とを組み合わせてなるものであるので、以下では、これらA液とB液についての詳細をまず具体的に説明し、そののち、これらの組み合わせなどについても詳細に説明する。
〔アクリルエマルジョンであるA液〕
A液は、水酸基を有する重合性不飽和単量体とシクロアルキル基を有する重合性不飽和単量体とを含むとともに、グリシジル基を有する重合性不飽和単量体、イソシアネート基を有する重合性不飽和単量体およびアルコキシシリル基を有する重合性不飽和単量体からなる群より選ばれる少なくとも1つさらに含む単量体混合物を重合してなる共重合体を樹脂成分とする、水系エマルジョンである。
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Since the aqueous coating composition of the present invention is a combination of the liquid A which is an acrylic emulsion and the liquid B which essentially contains a water-dispersible polyisocyanate, the details of the liquid A and the liquid B will be described below. Will be described first, and then a combination thereof will be described in detail.
[A liquid which is an acrylic emulsion]
Solution A contains a polymerizable unsaturated monomer having a hydroxyl group and a polymerizable unsaturated monomer having a cycloalkyl group, a polymerizable unsaturated monomer having a glycidyl group, and a polymerizable polymer having an isocyanate group. A water-based emulsion comprising, as a resin component, a copolymer obtained by polymerizing a monomer mixture further containing at least one selected from the group consisting of an unsaturated monomer and a polymerizable unsaturated monomer having an alkoxysilyl group. is there.

シクロアルキル基を有する重合性不飽和単量体は、A液の樹脂成分である共重合体を生成させる単量体混合物中に、その全体に対して5〜90重量%含むことが必要であり、好ましくは10〜70重量%、より好ましくは30〜60重量%含むことである。上記含有量が5重量%未満の場合は、エマルジョンの低粘度化が不十分となり、90重量%を超える場合は、重合安定性が低下しエマルジョンの貯蔵安定性が不良となる。
A液たるアクリルエマルジョンの樹脂成分である共重合体を生成させる単量体混合物は、グリシジル基を有する重合性不飽和単量体、イソシアネート基を有する重合性不飽和単量体およびアルコキシシリル基を有する重合性不飽和単量体からなる群より選ばれる少なくとも1種の重合性不飽和単量体をさらに含
It is necessary that the polymerizable unsaturated monomer having a cycloalkyl group is contained in the monomer mixture for forming the copolymer as the resin component of the liquid A in an amount of 5 to 90% by weight based on the whole. , Preferably 10 to 70% by weight, more preferably 30 to 60% by weight. When the content is less than 5% by weight, lowering the viscosity of the emulsion becomes insufficient, and when it exceeds 90% by weight, the polymerization stability is lowered and the storage stability of the emulsion becomes poor.
The monomer mixture for forming the copolymer which is a resin component of the acrylic emulsion as the liquid A is a polymerizable unsaturated monomer having a glycidyl group, a polymerizable unsaturated monomer having an isocyanate group, and an alkoxysilyl group. at least one polymerizable unsaturated further including a single-mer selected from the group consisting of polymerizable unsaturated monomers having.

上記イソシアネート基を有する重合性不飽和単量体としては、特に限定されるわけではないが、具体的には、例えば、2−メタクロイルオキシエチルイソシアネート(商品名カレンズMOI、昭和電工(株)製)、メタクロイルイソシアネート(商品名MAI、日本ペイント(株)製)、m−イソプロペニル−α、αジメチルベンジルイソシアネート(商品名m−TMI、武田薬品工業(株)製)などのイソシアネート基を有する重合性不飽和単量体類を挙げることができる。
上記アルコキシシリル基を有する重合性不飽和単量体は、下記一般式(1):
(R−Si−(R4−n (1)
(ただし、式(1)中、Rはラジカル重合性基を表し、Rは水素原子ハロゲン原子、アルコキシ基、アシロキシ基、フェノキシ基、アリールオキシ基、メルカプト基、アミノ基、アミド基、アミノオキシ基、イミノオキシ基およびアルケニルオキシ基からなる群より選ばれる少なくとも1つを表し、nは1から3までの整数であるとする。)
で表されるアルコキシシリル基を有する重合性不飽和単量体である。上記Rとしてのラジカル重合性基としては、特に限定はされないが、例えば、アリル基、ビニル基、アクリロキシアルキル基、メタクリロキシアルキル基などから選ばれる少なくとも1つを挙げることができる。
The polymerizable unsaturated monomer having an isocyanate group is not particularly limited, but specifically, for example, 2-methacryloyloxyethyl isocyanate (trade name: Karenz MOI, manufactured by Showa Denko KK) ), Has an isocyanate group such as methacroyl isocyanate (trade name: MAI, manufactured by Nippon Paint Co., Ltd.), m-isopropenyl-α, α-dimethylbenzyl isocyanate (trade name: m-TMI, manufactured by Takeda Pharmaceutical Co., Ltd.) And polymerizable unsaturated monomers.
Polymerizable unsaturated monomer having an alkoxysilyl group, under following general formula (1):
(R 1 ) n -Si- (R 2 ) 4-n (1)
(Wherein, in the formula (1), R 1 represents a radical polymerizable group, and R 2 represents a hydrogen atom, a halogen atom, an alkoxy group, an acyloxy group, a phenoxy group, an aryloxy group, a mercapto group, an amino group, an amide group, and an amino group. Represents at least one selected from the group consisting of an oxy group, an iminooxy group and an alkenyloxy group, and n is an integer of 1 to 3)
And a polymerizable unsaturated monomer having an alkoxysilyl group . The radically polymerizable group as R 1 is not particularly limited, and includes, for example, at least one selected from an allyl group, a vinyl group, an acryloxyalkyl group, a methacryloxyalkyl group, and the like.

JP2001265031A 2001-08-31 2001-08-31 Water coating composition Pending JP2003073611A (en)

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JP5169995B2 (en) * 2008-06-09 2013-03-27 新日鐵住金株式会社 Reinforcement structure and reinforcement method for H-shaped steel bolt joint joint
JP2010106117A (en) * 2008-10-29 2010-05-13 Asahi Kasei Chemicals Corp Method for preparing water-based, two-pack polyurethane coating composition
JP5900785B2 (en) * 2010-06-30 2016-04-06 株式会社ダイフレックス Waterproof structure and waterproof method
JP5979236B2 (en) 2012-09-25 2016-08-24 Nok株式会社 Coating agent composition
JP6582396B2 (en) * 2014-11-18 2019-10-02 Dic株式会社 Laminated body and molded body using the same
JP6266826B1 (en) * 2017-04-28 2018-01-24 大木 彬 Matte transparent paint composition and method for producing the same
JP7299068B2 (en) * 2018-05-24 2023-06-27 ベック株式会社 Coating method
CN110003740A (en) * 2019-03-12 2019-07-12 四川宏凯化工科技有限公司 A kind of Waterborne wood paint and preparation method thereof
JP7299051B2 (en) * 2019-04-02 2023-06-27 ベック株式会社 Coating method
CN115010847B (en) * 2022-07-15 2023-12-15 亚士创能科技(上海)股份有限公司 Emulsion for sand-in-water continuous phase and preparation method and application thereof

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JPH0778153B2 (en) * 1992-10-09 1995-08-23 ヘキスト合成株式会社 Durable synthetic resin water-based emulsion for exterior coatings
JP3215329B2 (en) * 1996-08-27 2001-10-02 株式会社日本触媒 Method for producing aqueous resin dispersion
JP4044188B2 (en) * 1997-10-29 2008-02-06 旭化成ケミカルズ株式会社 Water-based coating composition

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