JP2021533224A - α−メチレン−ラクトンを含む嫌気的硬化性組成物 - Google Patents
α−メチレン−ラクトンを含む嫌気的硬化性組成物 Download PDFInfo
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- JP2021533224A JP2021533224A JP2021505264A JP2021505264A JP2021533224A JP 2021533224 A JP2021533224 A JP 2021533224A JP 2021505264 A JP2021505264 A JP 2021505264A JP 2021505264 A JP2021505264 A JP 2021505264A JP 2021533224 A JP2021533224 A JP 2021533224A
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- Prior art keywords
- composition
- methylene
- meth
- lactone
- anaerobic
- 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.)
- Granted
Links
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Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F20/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride, ester, amide, imide or nitrile thereof
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Abstract
Description
嫌気性接着剤組成物はよく知られており、一般に(メタ)アクリレート成分および嫌気性硬化システムを含む。例えば、ごく最近の米国特許である米国特許第7,728,092号は、特定の(メタ)アクリレート成分および嫌気性硬化システムを含み、それに銅塩および封鎖剤の組み合わせが添加された嫌気的硬化性組成物を開示している。
その欲求はここで満たされた。
本明細書には、スレッドロッカー、スレッドシーラント、接着剤および保持化合物などの様々な用途に有用な嫌気的硬化性組成物が記載される。本発明の嫌気的硬化性組成物は、経時的に増強されたトルク強度および安定性を示すことができる。
評価のために2つの配合物を調製した。1つの配合物(コントロール)は、例1よりも30重量パーセント多くの(メタ)アクリレート成分、PEGDMAを使用した。例1では、PEGDMAを完全に補完する代わりに、30重量パーセントを同量のα−メチレンγバレロラクトンに置き換えた。以下の表1は、コントロールと例1のすべての構成要素とそれらの相対量を示す。
コントロールおよび例1のそれぞれは、82℃に維持された加熱ブロック内で試験管内の各サンプル4gを加熱することによって安定性について試験した。4時間後、ゲル化が起こったかどうかを決定するために木製のアプリケータースティックで配合物をプローブすることによって測定し、コントロールも例1も粘度の増大を示さなかった。
コントロールと例1のそれぞれは、特性を保持するための試験をした。試験は、ASTMD4562「ピンおよびカラー試験片を使用した接着剤のせん断強度の標準試験方法」に従って実施した。コントロールおよび例1のそれぞれについての5つの試験片サンプルは、脱脂された軟鋼ピンに配合物を適用し、脱脂された軟鋼カラーを有するアセンブリを形成することによって作製した。次に、組み立てられた試験片サンプルを室温で24時間硬化させた。組み立てられた試験片サンプルは、カラーがピンから分離するまで、2mm/分のクロスヘッド速度で圧縮荷重の下で試験した。硬化したピンとカラーアセンブリを分離するために必要な圧縮力を以下の表3に記録する。
表4に示すように、さらなる組成物を調製した。
Claims (15)
- (a)(メタ)アクリレート成分、
(b)α−メチレン−ラクトン、および
(c)嫌気性硬化システムを含む嫌気的硬化性組成物。 - α−メチレン−ラクトンが、組成物の総重量に基づいて、5〜90重量パーセントの量で組成物中に存在する、請求項1に記載の組成物。
- (メタ)アクリレート成分が、
式H2C=CGCO2R1
(式中、Gは、水素、ハロゲンまたは1〜約4個の炭素原子を有するアルキル基であることができ、R1は、1〜約16個の炭素原子を有するアルキル、シクロアルキル、アルケニル、シクロアルケニル、アルカリル、アラルキルまたはアリール基から選択することができ、これらのいずれも、場合によっては、シラン、シリコン、酸素、ハロゲン、カルボニル、ヒドロキシル、エステル、カルボン酸、尿素、ウレタン、カルボネート、アミン、アミド、硫黄、スルホネート、スルホン等で置換または中断することができる。)
で表される、請求項1に記載の組成物。 - (メタ)アクリレート成分が、組成物の総重量に基づいて約5〜約90重量パーセントの量で組成物中に存在する、請求項1に記載の組成物。
- 嫌気性硬化システムが、サッカリン、芳香族アミン、アセチルフェニルヒドラジン、マレイン酸、およびキノンのうちの1以上を含む、請求項1に記載の組成物。
- 芳香族アミンが、トルイジンである、請求項6に記載の組成物。
- トルイジンが、N、N、−ジエチル−p−トルイジン、N、N−ジメチル−o−トルイジン、またはそれらの組み合わせから選択される、請求項7に記載の組成物。
- キノンが、ナフタキノン、アントラキノン、またはそれらの組み合わせから選択される、請求項6に記載の組成物。
- 嫌気性硬化システムが、組成物の総重量に基づいて、0.2〜2重量パーセントの量で組成物中に存在する、請求項1に記載の組成物。
- 再生可能な資源から作られた嫌気的硬化性組成物を形成する方法であって、
a)(メタ)アクリレート成分を提供し、
b)α−メチレン−ラクトンを提供し、
c)嫌気性硬化システムを提供し、
d)(メタ)アクリレート成分、α−メチレン−ラクトンおよび嫌気性硬化システムを、嫌気的硬化性組成物を形成するのに十分な時間、一緒に混合する工程を含む方法。 - 請求項1に記載の嫌気的硬化性組成物から反応生成物を調製するプロセスであって、
請求項1に記載の組成物を所望の基板表面に適用し、
組成物を適用した基板を別の基板と接合してアセンブリを形成し、
組成物を硬化させるのに十分な時間、アセンブリを嫌気性環境にさらすことを含むプロセス。 - 基板の少なくとも1つが、鋼、真ちゅう、銅、アルミニウム、亜鉛、ガラスおよび他の金属および合金、セラミックおよびプラスチックから構成される、請求項12に記載のプロセス。
- α−メチレン−ラクトンが、組成物の総重量に基づいて、5〜50重量パーセントの量で組成物中に存在する、請求項1に記載の組成物。
- (メタ)アクリレート成分が、組成物の総重量に基づいて、約20〜約90重量パーセントの量で組成物中に存在する、請求項1に記載の組成物。
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PCT/EP2019/069974 WO2020025429A1 (en) | 2018-07-31 | 2019-07-24 | Anaerobically curable compositions containing alpha-methylene-lactones |
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