JP7365119B2 - 生物忌避剤およびその用途 - Google Patents
生物忌避剤およびその用途 Download PDFInfo
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- JP7365119B2 JP7365119B2 JP2019001386A JP2019001386A JP7365119B2 JP 7365119 B2 JP7365119 B2 JP 7365119B2 JP 2019001386 A JP2019001386 A JP 2019001386A JP 2019001386 A JP2019001386 A JP 2019001386A JP 7365119 B2 JP7365119 B2 JP 7365119B2
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- antifouling
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- polysilane
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Description
本発明の防汚剤はポリシランからなる。本発明者らは、ポリシランが生物に対する忌避作用を有することを見出し、水棲生物が水中の部材表面に付着するのを防止できるため、防汚剤として有効であることも見出した。
本発明の防汚塗料は、前記生物忌避剤を含んでいる。塗料中の生物忌避剤の割合は0.1~99質量%程度の範囲から選択でき、例えば10~95質量%、好ましくは20~90質量%、さらに好ましくは30~80質量%(特に50~70質量%)程度である。生物忌避剤を他の防汚剤と組み合わせる場合、塗料中の生物忌避剤の割合は、例えば1~80質量%、好ましくは3~70質量%、さらに好ましくは5~50質量%(特に10~30質量%)程度であってもよい。生物忌避剤の割合が少なすぎると、防汚性が低下する虞があり、逆に多すぎると、塗料の成膜性が低下する虞がある。
枯草菌:Bacillus subtilis菌株
LB寒天培地:超純水(ミリQ水)を溶媒とし、ハイポリペプトン(日本製薬(株)製)10g/リットル、乾燥酵母エキス(ナカライテスク(株)製)5g/リットル、塩化ナトリウム(ナカライテスク(株)製)5g/リットル、精製寒天末(ナカライテスク(株)製)10g/リットルを含む培地
市販の防汚塗料:大日本塗料(株)製「シーブルーエースキング」。
30mlのリン酸緩衝生理食塩水を充填した50ml容の遠沈管に、前記生理食塩水中0.1体積%となるように枯草菌の前培養液を添加し、リン酸緩衝生理食塩水の生菌数を計測した(初期生菌数)。前培養液を添加したリン酸緩衝生理食塩水中に、スライドグラス(72mm×26mm)の片面にポリシランを塗布した試験片を浸漬した後、1日間または2日間静置し、それぞれ前記リン酸緩衝生理食塩水の生菌数を計測した結果を表1に示す。
スライドグラスにポリシランを塗布せずに、実施例1と同様の方法で枯草菌の培養試験を行って生菌数を測定し、培地上のコロニーを観察した。生菌数の計測結果を表1に示し、コロニーの写真を図3に示す。
防汚剤80質量部に対してポリシランの割合が20質量部となるように、市販の防汚塗料にポリシランを添加して混合し、防汚組成物を調製した。この防汚組成物をポリカーボネート板の片面に塗布した後、塗布面にアコヤガイの稚貝150個を載置し、海水中で90分間静置した。90分の静置後、ポリカーボネート板を海水中から取り出し、ポリカーボネート板に付着しているアコヤガイを計測した結果、アコヤガイの付着数は6個であった。
防汚組成物として、ポリシランを添加せずに、市販の防汚塗料を、そのまま防汚組成物として使用する以外は実施例2と同様の方法でアコヤガイの付着状況を試験した結果、アコヤガイの付着数は11個であった。
Claims (6)
- 重量平均分子量500~1000のポリアルキルアリールシランからなる水棲生物忌避剤。
- 水棲生物を忌避するために請求項1記載の水棲生物忌避剤を使用する方法。
- 水棲生物が水中の部材表面に付着するのを防止するために請求項1記載の水棲生物忌避剤を使用する方法。
- 水中の部材表面が船底である請求項3記載の方法。
- 請求項1記載の水棲生物忌避剤を含む防汚塗料。
- 船底コーティング剤である請求項5記載の防汚塗料。
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Citations (4)
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JP2008266433A (ja) | 2007-04-19 | 2008-11-06 | Osaka Gas Co Ltd | ポリシラン及びその製造方法 |
JP2015528840A (ja) | 2012-07-03 | 2015-10-01 | バーニング ブッシュ グループ、 エルエルシー | 高性能ケイ素系コーティング組成物 |
JP2017025046A (ja) | 2015-07-27 | 2017-02-02 | 伯東株式会社 | 貯蔵安定性が改善された一液性の水処理剤組成物 |
JP2018131539A (ja) | 2017-02-15 | 2018-08-23 | 大阪瓦斯株式会社 | 金属防食塗料組成物、及び金属防食剤とその用途 |
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JPS6427636A (en) * | 1987-04-07 | 1989-01-30 | Southwest Res Inst | Photolytic microcapsule and usage thereof |
JPH0320286A (ja) * | 1989-06-16 | 1991-01-29 | Shin Etsu Chem Co Ltd | シラン化合物およびその製造方法 |
JPH05221815A (ja) * | 1992-02-12 | 1993-08-31 | Dainippon Jochugiku Co Ltd | 有害生物忌避剤 |
JPH0780235A (ja) * | 1993-09-14 | 1995-03-28 | Toshiba Corp | 酸素除去方法 |
EP0918338B1 (en) * | 1997-11-19 | 2000-03-29 | Lucent Technologies Inc. | Encapsulating composition for use on spliced cable |
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JP2008266433A (ja) | 2007-04-19 | 2008-11-06 | Osaka Gas Co Ltd | ポリシラン及びその製造方法 |
JP2015528840A (ja) | 2012-07-03 | 2015-10-01 | バーニング ブッシュ グループ、 エルエルシー | 高性能ケイ素系コーティング組成物 |
US20170107401A1 (en) | 2012-07-03 | 2017-04-20 | Burning Bush Group, Llc | Method for applying high performance silicon-based coating compositions |
JP2017025046A (ja) | 2015-07-27 | 2017-02-02 | 伯東株式会社 | 貯蔵安定性が改善された一液性の水処理剤組成物 |
JP2018131539A (ja) | 2017-02-15 | 2018-08-23 | 大阪瓦斯株式会社 | 金属防食塗料組成物、及び金属防食剤とその用途 |
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