JP2001262122A - Modified silicone-based sealant composition - Google Patents
Modified silicone-based sealant compositionInfo
- Publication number
- JP2001262122A JP2001262122A JP2000082486A JP2000082486A JP2001262122A JP 2001262122 A JP2001262122 A JP 2001262122A JP 2000082486 A JP2000082486 A JP 2000082486A JP 2000082486 A JP2000082486 A JP 2000082486A JP 2001262122 A JP2001262122 A JP 2001262122A
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- JP
- Japan
- Prior art keywords
- modified silicone
- ultraviolet absorber
- weight
- parts
- benzotriazole
- Prior art date
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Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、変成シリコーン系
シーリング材組成物に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a modified silicone sealant composition.
【０００２】[0002]
【従来の技術】変成シリコーン系シーリング材は、一般
建築物の内外装目地用途等に利用されているが、特に外
壁目地等の太陽光の直射に曝される使用環境において
は、劣化によるひび割れやこれに伴う反りによって所期
の防水機能を失うといった問題があり、長期間にわたる
安定した耐候性が求められている。2. Description of the Related Art Modified silicone-based sealing materials are used for interior and exterior joints of general buildings and the like. Particularly, in a use environment exposed to direct sunlight such as exterior wall joints, cracks due to deterioration may occur. There is a problem that the intended waterproof function is lost due to the warpage, and stable weather resistance for a long period is required.
【０００３】これらの変成シリコーン系シーリング材の
耐候性を向上させるため、例えば、特開平５−２８７１
８６号公報に、変成シリコーンポリマーにベンゾトリア
ゾール系紫外線吸収剤を含有させた硬化性組成物が開示
されている。しかしながら、上記公報に開示された硬化
性組成物では、外壁目地用途に供される変成シリコーン
系シーリング材としては、寒暖の繰り返しの中で直射日
光に曝される環境に対して未だ充分な耐候性が付与され
たものではなく、現状のレベルを超えた耐候性の更なる
改善が必要である。[0003] In order to improve the weather resistance of these modified silicone-based sealing materials, see, for example, Japanese Patent Application Laid-Open No. 5-2871.
No. 86 discloses a curable composition in which a modified silicone polymer contains a benzotriazole-based ultraviolet absorber. However, in the curable composition disclosed in the above-mentioned publication, the modified silicone-based sealing material to be used for outer wall joints still has sufficient weather resistance to an environment exposed to direct sunlight during repeated cooling and heating. However, it is necessary to further improve the weather resistance beyond the current level.
【０００４】[0004]
【発明が解決しようとする課題】本発明は、上述の事実
に鑑みなされたものであって、その目的とするところ
は、厳しい自然環境に長期間曝される環境に耐え得る充
分な耐候性を付与された変成シリコーン系シーリング材
組成物を提供することにある。DISCLOSURE OF THE INVENTION The present invention has been made in view of the above-described facts, and has as its object to provide a weather resistance sufficient to withstand an environment exposed to a severe natural environment for a long period of time. It is an object of the present invention to provide a modified silicone-based sealing material composition.
【０００５】[0005]
【課題を解決するための手段】請求項１記載の発明の変
成シリコーン系シーリング材組成物は、変成シリコーン
ポリマーにベンゾトリアゾール系紫外線吸収剤（Ｉ）及
びトリアジン系紫外線吸収剤（ＩＩ）が組み合わされて
含有されてなるものである。The modified silicone sealing material composition according to the first aspect of the present invention comprises a modified silicone polymer and a benzotriazole-based ultraviolet absorber (I) and a triazine-based ultraviolet absorber (II). It is contained.
【０００６】請求項２記載の発明の変成シリコーン系シ
ーリング材組成物は、請求項１記載の変成シリコーン系
シーリング材組成物において、変成シリコーンポリマー
１００重量部に対して、ベンゾトリアゾール系紫外線吸
収剤（Ｉ）０．０５〜９．９５重量部、トリアジン系紫
外線吸収剤（ＩＩ）９．９５〜０．０５重量部の範囲に
おいて互いに組み合わされ、合計量が１〜１０重量部と
なるように含有されてなるものである。[0006] The modified silicone sealing material composition according to the second aspect of the present invention is the modified silicone sealing material composition according to the first aspect, wherein 100 parts by weight of the modified silicone polymer is added to a benzotriazole-based ultraviolet absorber ( I) 0.05 to 9.95 parts by weight and triazine-based ultraviolet absorber (II) in a range of 9.95 to 0.05 parts by weight combined with each other so that the total amount is 1 to 10 parts by weight. It is.
【０００７】本発明において用いられるベンゾトリアゾ
ール系紫外線吸収剤（Ｉ）は、主材の変成シリコーン成
分等との良好な相溶性を有し、自然環境に流出しても支
障のないものであれば特に限定されるものではないが、
例えば、２−（３−ｔ−ブチル−５−メチル−２−ヒド
ロキシフェニル）−５−クロロベンゾトリアゾール、２
−（３，５−ジ−ｔ−ブチル−２−ヒドロキシフェニ
ル）−５−クロロベンゾトリアゾール、２−（５−メチ
ル−２−ヒドロキシフェニル）−５−クロロベンゾトリ
アゾール、２−［２−ヒドロキシ−３，５−ビス（α，
α−ジ−メチルベンジル）フェニル］−２Ｈ−ベンゾト
リアゾール、２−（３，５−ジ−ｔ−ブチル−２−ヒド
ロキシフェニル）ベンゾトリアゾール、２−（３，５−
ジ−ｔ−アミル−２−ヒドロキシフェニル）ベンゾトリ
アゾール、２−（２’−ヒドロキシ−５−ｔ−オクチル
フェニル）ベンゾトリアゾール、メチル−３−［３−ｔ
−ブチル−５−（２Ｈ−ベンゾトリアゾール−２−イ
ル）−４−ヒドロキシフェニル］プロピオネート−ポリ
エチレングリコール縮合物等が挙げられる。The benzotriazole-based ultraviolet absorber (I) used in the present invention has good compatibility with the modified silicone component of the main material and the like, as long as it does not cause any trouble even if it is discharged into the natural environment. Although not particularly limited,
For example, 2- (3-t-butyl-5-methyl-2-hydroxyphenyl) -5-chlorobenzotriazole, 2
-(3,5-di-t-butyl-2-hydroxyphenyl) -5-chlorobenzotriazole, 2- (5-methyl-2-hydroxyphenyl) -5-chlorobenzotriazole, 2- [2-hydroxy- 3,5-bis (α,
α-di-methylbenzyl) phenyl] -2H-benzotriazole, 2- (3,5-di-t-butyl-2-hydroxyphenyl) benzotriazole, 2- (3,5-
Di-t-amyl-2-hydroxyphenyl) benzotriazole, 2- (2′-hydroxy-5-t-octylphenyl) benzotriazole, methyl-3- [3-t
-Butyl-5- (2H-benzotriazol-2-yl) -4-hydroxyphenyl] propionate-polyethylene glycol condensate.
【０００８】又、トリアジン系紫外線吸収剤（ＩＩ）
は、主材の変成シリコーン成分等との良好な相溶性を有
し、自然環境に流出しても支障のないものであれば特に
限定されるものではないが、例えば、２−（４，６−ジ
フェニル−１，３，５−トリアジン−２−イル）−５−
ヒドロキシフェニル）−５−［（ヘキシル）オキシ］フ
ェノール等が挙げられる。Further, a triazine-based ultraviolet absorber (II)
Is not particularly limited as long as it has good compatibility with the denatured silicone component of the main material and does not cause any trouble even if it flows into the natural environment. For example, 2- (4,6) -Diphenyl-1,3,5-triazin-2-yl) -5-
Hydroxyphenyl) -5-[(hexyl) oxy] phenol and the like.
【０００９】上記ベンゾトリアゾール系紫外線吸収剤
（Ｉ）及びトリアジン系紫外線吸収剤（ＩＩ）は、変成
シリコーンポリマー１００重量部に対して、ベンゾトリ
アゾール系紫外線吸収剤（Ｉ）０．０５〜９．９５重量
部、トリアジン系紫外線吸収剤（ＩＩ）９．９５〜０．
０５重量部の範囲において互いに組み合わされ、合計量
が１〜１０重量部となるように含有されてなることが好
ましい。The benzotriazole-based ultraviolet absorber (I) and the triazine-based ultraviolet absorber (II) are used in an amount of 0.05 to 9.95 based on 100 parts by weight of the modified silicone polymer. Parts by weight, triazine-based ultraviolet absorber (II) 9.95-0.
It is preferable that the components are combined so that the total amount thereof is 1 to 10 parts by weight in the range of 05 parts by weight.
【００１０】上記ベンゾトリアゾール系紫外線吸収剤
（Ｉ）の含有量は、トリアジン系紫外線吸収剤（ＩＩ）
との合計量が変成シリコーンポリマー１００重量部に対
して、１〜１０重量部の範囲にあっても、０．０５重量
部未満であると、所期の耐候性を付与することができ
ず、９．９５重量部を超え、トリアジン系紫外線吸収剤
（ＩＩ）との合計量が１０重量部を超えると、シーリン
グ強度等の他の物性に悪影響を及ぼすことがあるので、
上記範囲で含有させることが好ましい。The content of the above-mentioned benzotriazole type ultraviolet absorber (I) is determined according to the content of the triazine type ultraviolet absorber (II).
If the total amount is less than 0.05 part by weight, even if the total amount of the modified silicone polymer is in the range of 1 to 10 parts by weight, the desired weather resistance cannot be imparted, If the amount exceeds 9.95 parts by weight and the total amount with the triazine-based ultraviolet absorber (II) exceeds 10 parts by weight, other physical properties such as sealing strength may be adversely affected.
It is preferable to contain it in the above range.
【００１１】上記トリアジン系紫外線吸収剤（ＩＩ）の
含有量は、ベンゾトリアゾール系紫外線吸収剤（Ｉ）と
の合計量が変成シリコーンポリマー１００重量部に対し
て、１〜１０重量部の範囲にあっても、０．０５重量部
未満であると、所期の耐候性を付与することができず、
９．９５重量部を超え、ベンゾトリアゾール系紫外線吸
収剤（Ｉ）との合計量が１０重量部を超えると、シーリ
ング強度等の他の物性に悪影響を及ぼすことがあるの
で、上記範囲で含有させることが好ましい。The content of the above triazine-based ultraviolet absorber (II) is in the range of 1 to 10 parts by weight based on 100 parts by weight of the modified silicone polymer in total with the benzotriazole-based ultraviolet absorber (I). However, if it is less than 0.05 parts by weight, the intended weather resistance cannot be imparted,
If it exceeds 9.95 parts by weight and the total amount with the benzotriazole-based ultraviolet absorber (I) exceeds 10 parts by weight, other physical properties such as sealing strength may be adversely affected. Is preferred.
【００１２】本発明の変成シリコーン系シーリング材組
成物は、必要に応じて、硬化触媒、充填剤、酸化防止
剤、チクソ性付与剤、脱水剤、接着性付与剤、溶剤、香
料、防錆剤、着色剤等が含有されてもよい。The modified silicone-based sealing material composition of the present invention may contain, if necessary, a curing catalyst, a filler, an antioxidant, a thixotropy-imparting agent, a dehydrating agent, an adhesion-imparting agent, a solvent, a fragrance, and a rust inhibitor. , A coloring agent and the like.
【００１３】本発明の変成シリコーン系シーリング材組
成物は、上述のように、変成シリコーンポリマーにベン
ゾトリアゾール系紫外線吸収剤（Ｉ）及びトリアジン系
紫外線吸収剤（ＩＩ）が組み合わされて含有されてなる
ものであるので、厳しい自然環境に長期間曝される環境
に耐え得る充分な耐候性を付与され得るものである。As described above, the modified silicone-based sealing material composition of the present invention contains a modified silicone polymer in combination with a benzotriazole-based ultraviolet absorber (I) and a triazine-based ultraviolet absorber (II). Therefore, it is possible to impart sufficient weather resistance to withstand an environment exposed to a severe natural environment for a long period of time.
【００１４】上記する優れた耐候性発現のメカニズムに
ついては、変成シリコーンポリマーにベンゾトリアゾー
ル系紫外線吸収剤（Ｉ）及びトリアジン系紫外線吸収剤
（ＩＩ）の相乗作用という他ないが、本発明者らの知見
によれば、ベンゾトリアゾール系紫外線吸収剤（Ｉ）の
最大吸収波長が３４０〜３５３ｎｍにあり、トリアジン
系紫外線吸収剤（ＩＩ）の最大吸収波長が２７４ｎｍ付
近にあって、これら両者が組み合わされた系では、各々
の紫外線吸収剤が有する吸収能の弱い波長部分が互いに
補われ、それにより合成された紫外線吸収能力は、各々
が単独で示す吸収能に比して著しく増大していることが
認められる。その結果、上述のように、厳しい自然環境
に長期間曝される環境に耐え得る充分な耐候性を示すも
のと考えられる。Regarding the mechanism of the above-mentioned excellent weather resistance development, there is no other than the synergistic action of the modified silicone polymer with the benzotriazole-based UV absorber (I) and the triazine-based UV absorber (II). According to the knowledge, the maximum absorption wavelength of the benzotriazole-based UV absorber (I) is 340 to 353 nm, and the maximum absorption wavelength of the triazine-based UV absorber (II) is around 274 nm, and these two are combined. In the system, it was confirmed that the weak wavelength portions of the respective ultraviolet absorbers were complemented by each other, and the synthesized ultraviolet absorption capability was significantly increased as compared with the absorption capability exhibited by each. Can be As a result, as described above, it is considered that the material exhibits sufficient weather resistance to withstand an environment exposed to a severe natural environment for a long period of time.
【００１５】[0015]
【発明の実施の形態】本発明を更に詳しく説明するため
以下に実施例を挙げるが、本発明はこれら実施例のみに
限定されるものではない。 （実施例１）変成シリコーンポリマー（鐘淵化学社製、
商品名「ＭＳポリマーＳ２０３」）１００重量部に対
し、紫外線吸収剤（Ｉ）（チハ゛スヘ゜シャリティケミカルス゛社製、商
品名「チヌビン３２７」）１重量部及び紫外線吸収剤
（ＩＩ）（チハ゛スヘ゜シャリティケミカルス゛社製、商品名「チヌビン
１５７７」）１重量部を配合し、充填剤、チクソ性付与
剤、脱水剤、接着性付与剤及び硬化触媒の所定量を配合
して変成シリコーン系シーリング材組成物を作製した。BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described in more detail with reference to examples, but the present invention is not limited to these examples. (Example 1) Modified silicone polymer (manufactured by Kaneka Corporation)
1 part by weight of the ultraviolet absorber (I) (manufactured by Chivas Specialty Chemicals Co., Ltd.) and 100 parts by weight of the ultraviolet absorber (II) (manufactured by Chivas Specialty Chemicals Co.) , Trade name "Tinuvin 1577"), and a predetermined amount of a filler, a thixotropy-imparting agent, a dehydrating agent, an adhesion-imparting agent, and a curing catalyst was blended to prepare a modified silicone-based sealing material composition. .
【００１６】（実施例２）実施例１の紫外線吸収剤
（Ｉ）に替えて、紫外線吸収剤（Ｉ）（チハ゛スヘ゜シャリティケミカ
ルス゛社製、商品名「チヌビン３２４」）１重量部を用い
たこと以外は、実施例１と同様にして変成シリコーン系
シーリング材組成物を作製した。(Example 2) Except that 1 part by weight of an ultraviolet absorber (I) (trade name "Tinuvin 324", manufactured by Chivas Chemicals Co., Ltd.) was used instead of the ultraviolet absorber (I) of Example 1. In the same manner as in Example 1, a modified silicone-based sealing material composition was produced.
【００１７】（比較例１）実施例１の紫外線吸収剤（Ｉ
Ｉ）に替えて、紫外線吸収剤（Ｉ）を同量だけ増加させ
て用い、紫外線吸収剤（Ｉ）単独で２重量部としたこと
以外は、実施例１と同様にして変成シリコーン系シーリ
ング材組成物を作製した。Comparative Example 1 The ultraviolet absorbent of Example 1 (I
A modified silicone-based sealing material in the same manner as in Example 1 except that the ultraviolet absorbent (I) was used in an increased amount by the same amount in place of I) and that the ultraviolet absorbent (I) alone was used at 2 parts by weight. A composition was made.
【００１８】（比較例２）実施例１の紫外線吸収剤
（Ｉ）に替えて、紫外線吸収剤（ＩＩ）を同量だけ増加
させて用い、紫外線吸収剤（ＩＩ）単独で２重量部とし
たこと以外は、実施例１と同様にして変成シリコーン系
シーリング材組成物を作製した。Comparative Example 2 Instead of the ultraviolet absorber (I) of Example 1, the ultraviolet absorber (II) was used in an increased amount by the same amount, and the ultraviolet absorber (II) alone was used at 2 parts by weight. Except for this, a modified silicone-based sealing material composition was produced in the same manner as in Example 1.
【００１９】（比較例３）実施例１の紫外線吸収剤（Ｉ
Ｉ）に替えて、紫外線吸収剤（Ｉ）（チハ゛スヘ゜シャリティケミカルス
゛社製、商品名「チヌビン３２６」）１重量部を用いた
こと以外は、実施例１と同様にして変成シリコーン系シ
ーリング材組成物を作製した。Comparative Example 3 The ultraviolet absorbent of Example 1 (I
A modified silicone-based sealing material composition was prepared in the same manner as in Example 1 except that 1 part by weight of the ultraviolet absorber (I) (trade name “Tinuvin 326” manufactured by Chivas Chemical Chemicals Co., Ltd.) was used instead of I). Was prepared.
【００２０】実施例１、２及び比較例１〜３で得られた
変成シリコーン系シーリング材組成物の性能を評価する
ため、各々３ｍｍ厚みのシートを塗工法で作製し、硬化
させて試料を作成した。作成された試料について、ＪＩ
Ｓ Ｂ ７７５３に準拠して耐候性試験を行った。耐候
性試験は、サンシャインウエザーメーターを用いて照射
時間１０００時間、１５００時間、２０００時間及び３
０００時間における性能を評価した。評価基準は、○：
異常なし、×クラックの発生が認められるもの、で評価
した。評価結果は表１に示した。In order to evaluate the performance of the modified silicone-based sealing material compositions obtained in Examples 1 and 2 and Comparative Examples 1 to 3, sheets each having a thickness of 3 mm were prepared by a coating method and cured to prepare samples. did. About the prepared sample, JI
A weather resistance test was performed according to SB7753. The weather resistance test was performed using a sunshine weather meter for an irradiation time of 1000 hours, 1500 hours, 2000 hours, and 3 hours.
The performance at 000 hours was evaluated. Evaluation criteria are:
There was no abnormality, and the occurrence of a crack was recognized. The evaluation results are shown in Table 1.
【００２１】[0021]
【表１】 [Table 1]
【００２２】実施例の各例で得られた変成シリコーン系
シーリング材組成物は、サンシャインウエザーメーター
による３０００時間照射後も照射前と全く変化なく、更
に、長時間の照射に耐え得るものであったのに対し、比
較例２の変成シリコーン系シーリング材組成物は、２０
００時間の照射で既にクラックの発生が認められ、その
他の比較例の変成シリコーン系シーリング材組成物も３
０００時間の照射に耐え得ないものであって、実施例の
変成シリコーン系シーリング材組成物と著しい性能差を
示した。The modified silicone-based sealing material composition obtained in each of the examples was completely unchanged after irradiation for 3000 hours with a sunshine weather meter, and could withstand long-time irradiation. On the other hand, the modified silicone-based sealing material composition of Comparative Example 2 contained 20
Cracking was already observed after irradiation for 00 hours, and the modified silicone-based sealing material compositions of the other comparative examples also contained 3%.
It could not withstand irradiation for 000 hours, and showed a remarkable difference in performance from the modified silicone-based sealing material composition of Example.
【００２３】[0023]
【発明の効果】本発明の変成シリコーン系シーリング材
組成物は、上述のように構成されているので、単純に紫
外線吸収剤を含有させただけの変成シリコーン系シーリ
ング材では到底実現することが難しい厳しい自然環境に
長期間曝される環境に耐え得る充分な耐候性を付与され
得るものである。Since the modified silicone sealing material composition of the present invention is constituted as described above, it is difficult to realize the modified silicone sealing material containing only an ultraviolet absorbent at all. It can provide sufficient weather resistance to withstand an environment exposed to a severe natural environment for a long period of time.
Claims (2)
ゾール系紫外線吸収剤（Ｉ）及びトリアジン系紫外線吸
収剤（ＩＩ）が組み合わされて含有されてなることを特
徴とする変成シリコーン系シーリング材組成物。1. A modified silicone-based sealing material composition comprising a modified silicone polymer and a benzotriazole-based ultraviolet absorber (I) and a triazine-based ultraviolet absorber (II) in combination.
して、ベンゾトリアゾール系紫外線吸収剤（Ｉ）０．０
５〜９．９５重量部、トリアジン系紫外線吸収剤（Ｉ
Ｉ）９．９５〜０．０５重量部の範囲において互いに組
み合わされ、合計量が１〜１０重量部となるように含有
されてなることを特徴とする請求項１記載の変成シリコ
ーン系シーリング材組成物。2. A benzotriazole-based ultraviolet absorber (I) in an amount of 0.0 based on 100 parts by weight of the modified silicone polymer.
5 to 9.95 parts by weight of a triazine-based ultraviolet absorber (I
2. The modified silicone-based sealing material composition according to claim 1, wherein the composition is combined with each other in a range of 9.95 to 0.05 parts by weight and the total amount is 1 to 10 parts by weight. object.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000082486A JP2001262122A (en) | 2000-03-23 | 2000-03-23 | Modified silicone-based sealant composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000082486A JP2001262122A (en) | 2000-03-23 | 2000-03-23 | Modified silicone-based sealant composition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001262122A true JP2001262122A (en) | 2001-09-26 |
Family
ID=18599283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000082486A Withdrawn JP2001262122A (en) | 2000-03-23 | 2000-03-23 | Modified silicone-based sealant composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001262122A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005113066A (en) * | 2003-10-10 | 2005-04-28 | Cemedine Co Ltd | Curable composition having excellent weather resistance |
| JP2006501339A (en) * | 2002-10-02 | 2006-01-12 | チバ スペシャルティ ケミカルズ ホールディング インコーポレーテッド | Synergistic combination of UV absorbers |
| US8519049B2 (en) | 2005-09-27 | 2013-08-27 | Cemedine Co., Ltd. | Curable composition |
| CN110337465A (en) * | 2017-02-27 | 2019-10-15 | 东曹株式会社 | Thermoplastic polyurethane resin composition and the formed body for using the resin combination |
-
2000
- 2000-03-23 JP JP2000082486A patent/JP2001262122A/en not_active Withdrawn
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006501339A (en) * | 2002-10-02 | 2006-01-12 | チバ スペシャルティ ケミカルズ ホールディング インコーポレーテッド | Synergistic combination of UV absorbers |
| JP2010270336A (en) * | 2002-10-02 | 2010-12-02 | Ciba Holding Inc | Synergistic uv absorber combination |
| JP2005113066A (en) * | 2003-10-10 | 2005-04-28 | Cemedine Co Ltd | Curable composition having excellent weather resistance |
| US8519049B2 (en) | 2005-09-27 | 2013-08-27 | Cemedine Co., Ltd. | Curable composition |
| CN110337465A (en) * | 2017-02-27 | 2019-10-15 | 东曹株式会社 | Thermoplastic polyurethane resin composition and the formed body for using the resin combination |
| US11053343B2 (en) | 2017-02-27 | 2021-07-06 | Tosoh Corporation | Thermoplastic polyurethane resin composition and molded body using said resin composition |
| CN110337465B (en) * | 2017-02-27 | 2021-07-30 | 东曹株式会社 | Thermoplastic polyurethane resin composition and molded article using the same |
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