JPH0458513B2 - - Google Patents
Info
- Publication number
- JPH0458513B2 JPH0458513B2 JP59241528A JP24152884A JPH0458513B2 JP H0458513 B2 JPH0458513 B2 JP H0458513B2 JP 59241528 A JP59241528 A JP 59241528A JP 24152884 A JP24152884 A JP 24152884A JP H0458513 B2 JPH0458513 B2 JP H0458513B2
- Authority
- JP
- Japan
- Prior art keywords
- emulsion
- acrylic resin
- urethane prepolymer
- acrylic
- resin emulsion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Processes Of Treating Macromolecular Substances (AREA)
- Paints Or Removers (AREA)
Description
〔産業上の利用分野〕
本発明は、建造内外装用塗料、塗り床材である
建造物保護材に関する。
〔従来の技術と発明が解決しようとする課題〕
一般に、この種の建造物保護材は各種建築工事
において用いられており、その主な役割は次のよ
うに集約できる。
ａ 床材や壁材に接着、あるいは密着して十分な
水密性及び弾性を確保できること。
ｂ 外部からの衝撃、その他の外力に対して、水
密性及び弾性を存続できること。
ｃ 建築物がさらされる環境において長期にわた
り、上記ａ及びｂを存続できること。
しかして、この種の建造物保護材の品種は、弾
性系と塑性系に区分され、弾性系の中でもウレタ
ン系は経済性の面から多用されている。ところ
が、ウレタン系のものは性能面において耐オゾン
性、耐熱性、耐熱紫外線に劣るという欠点があ
る。
また、塑性系のアクリル系のものは耐候性、耐
熱性に優れてはいるが、エマルジヨンが基材とな
つているため、媒体である水が揮散して硬化が進
み経年固化する欠点がある。
以上のように、ウレタン系及びアクリル系共
に、上記した建造物保護材の使命（ａ，ｂ，ｃ）
に照らした場合、適切な材料とは言い難い。
本発明はこのような従来の問題点を解決するも
ので、ウレタン系とアクリル系の弱点を除去し、
耐候性、耐熱性に優れると共に、体積収縮率が小
さく、かつ経年固化を防止した建造物保護材を提
供することを目的とする。
〔課題を解決するための手段〕
上述の目的を達成するために、本発明に係る建
造物保護材は、アクリル樹脂エマルジヨンからな
る成分中に、ウレタンプレポリマーのイソシアネ
ート基と該アクリル樹脂エマルジヨンのH2Oと
が反応してなるウレタンポリマー粒子が混在した
建造物保護材であつて；上記アクリル樹脂エマル
ジヨンを、アクリル酸エステル共重合エマルジヨ
ン、スチレンアクリル共重合エマルジヨン、エチ
レン酢ビアクリル三元重合エマルジヨンの内の１
種又は２種から構成すると共に、その樹脂含有を
50％以上とし、かつ、上記ウレタンプレポリマー
のNCO含有を1.0〜4.0％とすると共に、上記アク
リル樹脂エマルジヨンの樹脂固形分と、上記ウレ
タンプレポリマーとの配合比を、（100：50）〜
（100：100）に設定したものである。
〔作 用〕
ウレタンプレポリマーのイソシアネート基とア
クリル樹脂エマルジヨンの媒体であるH2Oとを
反応させるので、エマルジヨンの濃度を上げるこ
とができる。
また、補助乳化剤及び保護コロイドを添加して
プレミツクスしたアクリル樹脂エマルジヨンに対
して、可塑剤を混合してプレミツクスしたウレタ
ンプレポリマーを、滴下し、撹拌すると、皮膜
（建造物保護材）は透明均一となる。
さらに、減圧真空脱泡により、形成される皮膜
に気泡が生じない。
〔実施例〕
以下、実施例を示す図面に基づいて本発明を詳
説する。
図は本発明に係る建造物保護材の製造方法を説
明するためのブロツク図である。ここで、建造物
保護材とは、建造内外装用塗料又は塗り床材をい
う。図中、１〜４に示すように、本発明では、ま
ずアクリル樹脂エマルジヨン１にウレタンプレポ
リマー２を滴下、撹拌３して原料ラテツクス４が
製造される。ここで、アクリル樹脂エマルジヨン
１とは、各種アクリル酸エステル共重合エマルジ
ヨン、スチレンアクリル共重合エマルジヨン、エ
チレン酢ビアクリル三元共重合エマルジヨンで、
樹脂含有50％以上のものをいう。また、ウレタン
プレポリマー２とは、ウレタン系建造物保護材の
基材として用いられるNCO含有1.0〜4.0％のもの
をいう。そして、アクリル樹脂エマルジヨン１
は、ウレタンプレポリマー２を滴下、撹拌３する
際、その中にあらかじめ補助乳化剤、保護コロイ
ド等を添加して約５分間ほど撹拌してプレミツク
スしてある。さらに、ウレタンプレポリマー２も
可塑剤を混合して約５分間ほど撹拌してプレミツ
クスしてある。上記補助乳化剤とは、非イオン系
乳化剤HLB−11〜14のものであり、また保護コ
ロイドとは、ポバール、ヒドロキシメチルセルロ
ーズの水溶液である。さらに、可塑剤とは、
PGC系及びフタル酸ナトリウム系、即ちDBP、
DOP等を指す。
このようにしてプレミツクスされたアクリル樹
脂エマルジヨン１を撹拌しながら、同じくプレミ
ツクスされたウレタンプレポリマー２を該エマル
ジヨン１に滴下して15分間〜20分間撹拌３する。
この撹拌３によるウレタンプレポリマー２を分散
させつつ、アクリル樹脂エマルジヨン１の媒体で
あるH2Oと該ウレタンプレポリマー２のイソシ
アネート基とを反応させ、アクリル樹脂エマルジ
ヨン１中にウレタンポリマー粒子が分散した原料
ラテツクス４を得る。なお、上記プレミツクスさ
れたアクリル樹脂エマルジヨン１の樹脂固形分
と、同じくプレミツクスされたウレタンプレポリ
マー２との配合比は、100：（50〜100）とする。
その後、得られた原料ラテツクス４に、顔料分
散剤、安定剤、皮膜形成助剤、凍結安定剤を所定
量添加して撹拌５し、これらの分散が完了したも
のに対して、さらに、充填材、補強剤、顔料を混
練６する。これにより、建造物保護材７を得る。
生産条件として、充填材、顔料の混練撹拌時間
は、40〜60分を必要とする。その後、60〜65cm／
Hgの減圧真空脱泡工程を25〜30分間行い、反応
によつて発生したCO2を除去するが、CO2の残存
が多い場合には再度減圧により除去しなければな
らない。
以上のようにして製造されたウレタンラテツク
ス系保護材の性能を、JIS Ａ 5758“建築用シー
リング材”、JIS Ａ 6910“複層仕上塗材”、及び
JISA 6021“屋根防水用塗膜材”を準用して性能
評価したところ、夫々、表、表′、表″に示
す通りであつた。
[Industrial Field of Application] The present invention relates to a building protection material, which is a paint for interior and exterior use of buildings, and a painted flooring material. [Prior art and problems to be solved by the invention] In general, this type of building protection material is used in various types of construction work, and its main roles can be summarized as follows. a) It must be able to adhere or adhere to flooring and wall materials to ensure sufficient watertightness and elasticity. b. Must maintain watertightness and elasticity against external impacts and other external forces. c) Ability to maintain a and b above for a long period of time in the environment to which the building is exposed. The types of building protection materials of this type are classified into elastic types and plastic types, and among the elastic types, urethane types are often used from the viewpoint of economy. However, urethane-based materials have the disadvantage of being inferior in ozone resistance, heat resistance, and resistance to heat ultraviolet rays in terms of performance. In addition, although plastic acrylic materials have excellent weather resistance and heat resistance, they have the disadvantage that because they are based on emulsion, water, which is a medium, evaporates, resulting in accelerated hardening and solidification over time. As mentioned above, both urethane-based and acrylic-based materials fulfill the above-mentioned mission (a, b, c) of building protection materials.
In light of this, it is difficult to say that it is an appropriate material. The present invention solves these conventional problems by eliminating the weaknesses of urethane and acrylic systems.
The purpose of the present invention is to provide a building protection material that has excellent weather resistance and heat resistance, has a small volumetric shrinkage rate, and prevents solidification over time. [Means for Solving the Problems] In order to achieve the above object, the building protection material according to the present invention contains isocyanate groups of a urethane prepolymer and H of the acrylic resin emulsion in a component consisting of an acrylic resin emulsion. A building protection material containing a mixture of urethane polymer particles formed by reacting with 2 O; No. 1
Consisting of one species or two species, and its resin content
50% or more, and the NCO content of the urethane prepolymer is 1.0 to 4.0%, and the blending ratio of the resin solid content of the acrylic resin emulsion and the urethane prepolymer is (100:50) to
(100:100). [Function] Since the isocyanate groups of the urethane prepolymer are reacted with H 2 O, which is the medium of the acrylic resin emulsion, the concentration of the emulsion can be increased. Furthermore, when a urethane prepolymer premixed with a plasticizer is dropped onto an acrylic resin emulsion premixed with an auxiliary emulsifier and a protective colloid and stirred, the film (building protection material) becomes transparent and uniform. Become. Furthermore, due to the reduced pressure vacuum degassing, no air bubbles are generated in the formed film. [Example] Hereinafter, the present invention will be explained in detail based on drawings showing examples. The figure is a block diagram for explaining the method for manufacturing a building protection material according to the present invention. Here, the term "building protection material" refers to paint or flooring material for the interior and exterior of buildings. As shown in 1 to 4 in the figure, in the present invention, a urethane prepolymer 2 is first dropped into an acrylic resin emulsion 1 and stirred 3 to produce a raw material latex 4. Here, the acrylic resin emulsion 1 refers to various acrylic ester copolymer emulsions, styrene acrylic copolymer emulsions, ethylene acetate biacrylic ternary copolymer emulsions,
Refers to products with a resin content of 50% or more. Moreover, the urethane prepolymer 2 refers to one containing 1.0 to 4.0% NCO, which is used as a base material for urethane-based building protection materials. And acrylic resin emulsion 1
When dropping the urethane prepolymer 2 and stirring 3, an auxiliary emulsifier, a protective colloid, etc. are added in advance and the mixture is stirred for about 5 minutes to form a premix. Further, the urethane prepolymer 2 was also mixed with a plasticizer and stirred for about 5 minutes to form a premix. The above-mentioned auxiliary emulsifiers are nonionic emulsifiers HLB-11 to HLB-14, and the protective colloid is an aqueous solution of poval and hydroxymethyl cellulose. Furthermore, what is a plasticizer?
PGC-based and sodium phthalate-based, i.e. DBP,
Refers to DOP etc. While stirring the acrylic resin emulsion 1 premixed in this way, urethane prepolymer 2, which was also premixed, is added dropwise to the emulsion 1 and stirred for 15 to 20 minutes 3.
While dispersing the urethane prepolymer 2 by stirring 3, H 2 O, which is the medium of the acrylic resin emulsion 1, was reacted with the isocyanate groups of the urethane prepolymer 2, so that the urethane polymer particles were dispersed in the acrylic resin emulsion 1. Raw material latex 4 is obtained. The blending ratio of the resin solid content of the premixed acrylic resin emulsion 1 to the similarly premixed urethane prepolymer 2 is 100:(50-100). Thereafter, predetermined amounts of a pigment dispersant, a stabilizer, a film forming aid, and a freeze stabilizer are added to the obtained raw material latex 4 and stirred 5, and after these dispersions are completed, a filler is added. , reinforcing agent, and pigment are kneaded 6. Thereby, the building protection material 7 is obtained. As a production condition, the kneading and stirring time of fillers and pigments requires 40 to 60 minutes. After that, 60-65cm/
The Hg vacuum degassing step is performed for 25 to 30 minutes to remove the CO 2 generated by the reaction, but if there is a large amount of CO 2 remaining, it must be removed again by vacuum. The performance of the urethane latex-based protective material manufactured as described above was evaluated according to JIS A 5758 “Architectural sealing materials”, JIS A 6910 “Multi-layer finishing coating materials”, and
The performance was evaluated by applying JISA 6021 "Roof Waterproofing Coating Materials" and the results were as shown in Tables, Tables' and Tables, respectively.
【表】【table】
【表】【table】
【表】【table】
【表】
次に、本発明に係る保護材と従来の一成分形及
び二成分形ウレタン系保護材及び水性アクリル保
護材との比較結果を夫々表、表、表に示
す。[Table] Next, the results of comparison between the protective material according to the present invention and conventional one-component and two-component urethane-based protective materials and water-based acrylic protective materials are shown in Table, Table, and Table, respectively.
【表】【table】
【表】【table】
本発明は上述の如く構成されているので、次に
記載する効果を奏する。
エマルジヨンの濃度を上げることができるの
で、この建造物保護材は、「媒体である水が揮
散して硬化が進み経年固化する。」ということ
がなくなり、長期にわたつて弾力性に富んだも
のとなる。
安定したエマルジヨンを得ることができ、常
に高品質の製造を提供することができる。
充填材等の混合が行いやすいものとなり、そ
の取り扱いが極めて容易となる。
特に、本発明に係る建造物保護材は、耐熱
性、耐候性に優れ、かつ、体積収縮率も僅少と
なり、高品質である。
Since the present invention is configured as described above, it produces the effects described below. Because the concentration of the emulsion can be increased, this building protection material does not suffer from the volatilization of the water medium, which causes it to harden and solidify over time, making it highly elastic over a long period of time. Become. A stable emulsion can be obtained and high quality production can always be provided. It becomes easy to mix the filler and the like, and it becomes extremely easy to handle. In particular, the building protection material according to the present invention has excellent heat resistance and weather resistance, has a small volumetric shrinkage rate, and is of high quality.
図は本発明の製造方法を説明するためのブロツ
ク図である。
１……アクリル樹脂エマルジヨン、２……ウレ
タンプレポリマー、３……撹拌、４……原料ラテ
ツクス、６……混練。
The figure is a block diagram for explaining the manufacturing method of the present invention. 1... Acrylic resin emulsion, 2... Urethane prepolymer, 3... Stirring, 4... Raw material latex, 6... Kneading.
Claims (1)
に、ウレタンプレポリマー２のイソシアネート基
と該アクリル樹脂エマルジヨン１のH2Oとが反
応してなるウレタンポリマー粒子が混在した建造
物保護材であつて、 上記アクリル樹脂エマルジヨン１を、アクリル
酸エステル共重合エマルジヨン、スチレンアクリ
ル共重合エマルジヨン、エチレン酢ビアクリル三
元重合エマルジヨンの内の１種又は２種から構成
すると共に、その樹脂含有を50％以上とし、か
つ、上記ウレタンプレポリマー２のNCO含有を
1.0〜4.0％とすると共に、上記アクリル樹脂エマ
ルジヨン１の樹脂固形分と、上記ウレタンプレポ
リマー２との配合比を、（100：50）〜（100：
100）に設定したことを特徴とする建造物保護材。[Claims] 1. A building protection material in which urethane polymer particles formed by reacting the isocyanate groups of a urethane prepolymer 2 with H 2 O of the acrylic resin emulsion 1 are mixed in a component consisting of an acrylic resin emulsion 1. The acrylic resin emulsion 1 is composed of one or two of acrylic ester copolymer emulsion, styrene acrylic copolymer emulsion, and ethylene acetate biacrylic tertiary emulsion, and the resin content is 50%. The above, and the NCO content of the urethane prepolymer 2 is
1.0 to 4.0%, and the blending ratio of the resin solid content of the acrylic resin emulsion 1 and the urethane prepolymer 2 to (100:50) to (100:
100).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24152884A JPS6157655A (en) | 1984-11-15 | 1984-11-15 | Building protecting material and its preparation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24152884A JPS6157655A (en) | 1984-11-15 | 1984-11-15 | Building protecting material and its preparation |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59179949A Division JPS6157622A (en) | 1984-08-29 | 1984-08-29 | Sealing material and its production |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6157655A JPS6157655A (en) | 1986-03-24 |
| JPH0458513B2 true JPH0458513B2 (en) | 1992-09-17 |
Family
ID=17075687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24152884A Granted JPS6157655A (en) | 1984-11-15 | 1984-11-15 | Building protecting material and its preparation |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6157655A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3628125A1 (en) * | 1986-08-19 | 1988-03-03 | Herberts Gmbh | AQUEOUS COATING AGENT, METHOD FOR THE PRODUCTION THEREOF AND THE USE THEREOF |
| US20030092848A1 (en) * | 2001-09-11 | 2003-05-15 | Ashok Sengupta | Sprayable liner for supporting the rock surface of a mine |
| EP2277961A1 (en) * | 2009-07-02 | 2011-01-26 | Sika, S.A.U. | Acrylic-polyurethane polymer coating dispersions for roofing |
| CN104946039A (en) * | 2015-07-14 | 2015-09-30 | 桂林市和鑫防水装饰材料有限公司 | Metal roof heat-insulating waterproof coating and preparation method thereof |
| US20250109312A1 (en) * | 2023-10-02 | 2025-04-03 | Henry Company, Llc | Stable Hybrid Formulations of Acrylic Emulsion and Polyurethane Dispersions and Applications Thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6144835Y2 (en) * | 1981-03-27 | 1986-12-17 | ||
| JPS6055064A (en) * | 1983-09-07 | 1985-03-29 | Toagosei Chem Ind Co Ltd | Coating composition |
| JPS6157622A (en) * | 1984-08-29 | 1986-03-24 | Nitto Polymer Kogyo Kk | Sealing material and its production |
-
1984
- 1984-11-15 JP JP24152884A patent/JPS6157655A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6157655A (en) | 1986-03-24 |
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