JP2010506828A - 医療コーティングのためのコーティング調合物 - Google Patents
医療コーティングのためのコーティング調合物 Download PDFInfo
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- JP2010506828A JP2010506828A JP2009527743A JP2009527743A JP2010506828A JP 2010506828 A JP2010506828 A JP 2010506828A JP 2009527743 A JP2009527743 A JP 2009527743A JP 2009527743 A JP2009527743 A JP 2009527743A JP 2010506828 A JP2010506828 A JP 2010506828A
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Abstract
Description
式(1)
(式中、
Gは少なくともn個の官能基を有する多官能性化合物の残基であり、各R1および各R2は独立して水素を表し、または場合により1つ以上のヘテロ原子を含有する置換および非置換炭化水素から選択される基を表し、好ましくは水素またはC1〜C20炭化水素、より好ましくは水素またはC1〜C20アルキルであり;nは少なくとも2、好ましくは2〜100、より好ましくは2〜8、特に2または3の値を有する整数である)
に記載の多官能重合性化合物を使用して得られることが、今や意外にも発見された。
(a)式(1)
(式中、
Gは少なくともn個の官能基を有する多官能性化合物の残基であり、各R1および各R2は独立して水素または場合により1つ以上のヘテロ原子を含有する置換および非置換炭化水素から選択される基を表し、好ましくは水素またはC1〜C20炭化水素、より好ましくは水素またはC1〜C20アルキルであり;nは少なくとも2、好ましくは2〜100、より好ましくは2〜8、特に2または3の値を有する整数である)に記載の少なくとも1つの多官能重合性化合物、および
(b)少なくとも1つの重合開始剤
を含んでなる、医療コーティングを調製するためのコーティング調合物に関する。
[1.多官能重合性化合物の合成]
[1.1 PEG−ジアクリレート;PEGDAの合成]
[PEG4000DA]
PEG(150g、75mmol OH、フルカ(Fluka)からのBiochemika Ultra[95904]、#427345/1、OH−値:28.02mg KOH/g、499.5meq/kg、Mn:4004mol/g)を窒素雰囲気下で45℃で350mLの乾燥トルエン(メルク(Merck)プロアナリシス(pro analysis)、分子ふるい(molsieves)上(4Å)で乾燥)に溶解し、ラジカル安定剤としてイルガキュア1035(0.2g、約0.15w%、チバ・スペシャルティ・ケミカルズ(Ciba Specialty Chemicals))を添加した。PEG/トルエン溶液を一晩共沸蒸留し(50℃/70mbar)、凝縮トルエンを4Å分子ふるい上に導いた。OH滴定(分析参照)によりPEGの各バッチについてヒドロキシル値を正確に判定して、添加する塩化アクリロイル(メルク、合成用、5℃で保存してそのまま使用)の量を計算し、反応中の変換を判定することが重要である。
窒素下で、20g(13.3mmol)のPEG−ジアミン(Mn1500g/mol;アルドリッチ)を400mLのトルエン中で共沸蒸留し、約100mLのトルエンを除去した。溶液を窒素下で室温に冷却し、次に氷浴内で冷却した。50mLのジクロロメタン(メルク)を添加した。4.04g(39.7mmol)のトリエチルアミンを滴下して添加し、続いて3.48g(39.7mmol)の塩化アクリロイル(さらなる精製なしに使用した)を滴下して添加した。反応は窒素下で一晩進行した。溶液を氷浴内で冷却しNEt3・HCl塩を沈殿させ、次に濾過した。1%(w/w)イルガノックス(Irganox)1035の添加後、濾液を真空下で濃縮した。濃縮物を75mLのジクロロメタンに溶解し、続いて1.5L氷冷ジエチルエーテル中で沈殿させた。生成物を濾過して収集し、続いてジエチルエーテルで洗浄した。
乾燥不活性雰囲気内で、トルエンジイソシアネート(TDIまたはT、アルドリッチ、95%純度、87.1g、0.5mol)、イルガノックス1035(チバ・スペシャルティ・ケミカルズ、0.58g、アクリル酸ヒドロキシエチル(HEAまたはH)に対して1重量%)およびヘキサン酸2−エチルスズ(II)(シグマ(Sigma)、95%純度、0.2g、0.5mol)を1リットルフラスコ内に入れて30分間撹拌した。氷浴を使用して反応混合物を0℃に冷却した。HEA(アルドリッチ、96%純度、58.1g、0.5mol)を30分間滴下して添加し、その後氷浴を除去して混合物が室温に暖まるまで置いた。3時間後に反応が完結した。ポリ(2−メチル−1,4−ブタンジオール)−alt−ポリ(テトラメチレングリコール)(PTGL、保土谷化学工業、Mn=1000g/mol、250g、0.25mol)を30分間滴下して添加した。続いて反応混合物を60℃に加熱し、18時間撹拌した時点で、GPC(HEAの完全な消費を示す)、IR(NCO関連バンドがないことを示す)、およびNCO滴定(0.02重量%未満のNCO含量)により反応が完結したことが示された。
[3.1.NMR測定]
核磁気共鳴(NMR)測定はVarian Inova 300分光計上で実施した。
Spectrumソフトウェアを使用して、パーキン・エルマー(Perkin Elmer)Spectrum One分光光度計を用いて、フーリエ変換赤外線(FTIR)測定を実施した。
#12マイヤー・バー(MeyerBar)を使用して、表1に従ったプライマーコーティング調合物を120μmのPETホイル上に被覆し、およそ550nmの乾燥フィルム厚さを得た。空気中でDランプを使用して、プライマーコーティング調合物を1.10J/cm2に硬化させた。引き続いて表3のコーティング調合物をプライマーに被覆した。コーティングを25℃で1分間放置して乾燥させ、空気中でDランプを使用して、1.10J/cm2のUV単回パスに曝露した。得られた塗り厚は2μmであった。
ハーランドPCX塗布機によって浸漬コーティングを実施した。インターナショナル・ライト(International Light)検出器SED005#989を装着したハーランドUVR335(IL 1400としてもまた知られている)によってランプ強度を測定した。入力光学素子:W#11521、フィルターwbs320#27794。
ハーランドFTS 5000摩擦試験機を使用した。ハーランド・メディカル・システムズ(Harland Medical Systems)からの摩擦試験機パッド、P/N102692、FTS5000摩擦試験機パッド、0.125*0.5*0.125、60デュロメーターを使用した。
実施例1および比較実験Aのコーティング調合物の安定性を試験するために、次の試験を実施した。
実施例1〜2のコーティング調合物の安定性を試験するために、次の試験を実施した。
滑性コーティングを調製するのに使用したコーティング調合物の安定性を試験するために、次の試験を実施した。
[4.1.実施例1および比較実験A:摩擦試験によって判定されたコーティングの安定性]
[4.2 1.コーティングの外観]
PEG(AM)2(実施例3)、PEG(MAM)2(実施例4)、およびPEGDA(比較実験C)を含有する新鮮な調合物を硬化させると、透明なコーティングが得られた。PEGDAを含有するコーティング調合物を閉じられた容器内において50℃でインキュベートすると、得られたコーティングは、ますます不透明になる。PEG(AM)2およびPEG(MAM)2を含有する調合物からできたコーティングは、調合物を50℃でインキュベートした際に透明なままであった。これはコーティング調合物の改善された安定性を示す。
図1(比較実験C)は、滑性コーティングを調製するのに使用されるPEGDAを含んでなるコーティング調合物を50℃で2日間(塗りつぶし三角)インキュベートした後に、摩擦力(摩擦力が高いほど潤滑性は低い)で表わされる潤滑性が顕著に低下することを示す。40〜80gの範囲の摩擦力が測定された。実際に、PEGDA含有コーティング調合物から調製されたコーティングでは、第1回目の試験シリーズの最初のサイクル中に、コーティングの一部が摩擦試験機のクランプパッドによって除去された。その結果、コーティングは破損した。したがって2日間のインキュベーション後の試験シリーズの2回目の試験では、70〜140gの範囲のなおもより高い摩擦力(白抜き三角)という結果になった。これは新鮮なコーティング調合物(0日間インキュベーション)(塗りつぶしおよび白抜き四角)から調製されたコーティングでは観察されなかった。およそ10gの摩擦力が双方の試験シリーズで測定された。
Claims (26)
- Gが少なくとも1つのヘテロ原子を含んでなる、請求項2に記載のコーティング調合物。
- 式(1)に記載の多官能重合性化合物が500g/mol以上の数平均分子量(Mn)を有する、請求項1または2に記載のコーティング調合物。
- 式(1)に記載の多官能重合性化合物が2000g/mol以下の数平均分子量(Mn)を有する、請求項1〜3のいずれか一項に記載のコーティング調合物。
- 式(1)に記載の多官能重合性化合物が極性溶剤に可溶性である、請求項1〜4のいずれか一項に記載のコーティング調合物。
- Gが、好ましくはポリエーテル、ポリエステル、ポリウレタン、ポリエポキシド、ポリアミド、ポリ(メタ)アクリルアミド、ポリ(メタ)アクリル樹脂、ポリオキサゾリドン、ポリビニルアルコール、ポリエチレンイミン、ポリペプチド、およびセルロースまたはデンプンなどの多糖類、または上のあらゆる組み合わせ、より好ましくは少なくとも1つのポリエチレングリコールまたはポリプロピレングリコールブロックを含んでなるポリマーよりなる群から選択される親水性多官能性化合物の残基である、請求項1〜5のいずれか一項に記載のコーティング調合物。
- R1=HおよびR2=Hである、請求項1〜6のいずれか一項に記載のコーティング調合物。
- R1がCH3およびR2=Hである、請求項1〜6のいずれか一項に記載のコーティング調合物。
- 少なくとも1つの機能性構成要素(c)、好ましくは機能性ポリマー(c)をさらに含んでなる、請求項1〜8のいずれか一項に記載のコーティング調合物。
- 機能性ポリマー(c)が、好ましくは例えばポリビニルピロリドン(PVP)などのポリ(ラクタム)と、ポリウレタンと、アクリル酸およびメタクリル酸のホモポリマーおよび共重合体と、ポリビニルアルコールと、ポリビニルエーテルと、無水マレイン酸ベースの共重合体と、ポリエステルと、ビニルアミンと、ポリエチレンイミンと、ポリエチレンオキシドと、ポリ(カルボン酸)と、ポリアミドと、ポリ酸無水物と、ポリホスファゼンと、例えばメチルセルロース、カルボキシメチルセルロース、ヒドロキシメチルセルロース、およびヒドロキシプロピルセルロースなどのセルロース系材料と、ヘパリンと、デキストランと、例えばコラーゲン、線維素、およびエラスチンなどのポリペプチドと、例えばキトサン、ヒアルロン酸、アルギン酸、ゼラチン、およびキチンなどの多糖類と、例えばポリラクチド、ポリグリコリド、およびポリカプロラクトンなどのポリエステルと、例えばコラーゲン、アルブミン、オリゴペプチド、ポリペプチド、短鎖ペプチド、タンパク質、オリゴヌクレオチドなどのポリペプチドと、それらの混合物とよりなる群から選択される親水性ポリマーである、請求項9に記載のコーティング調合物。
- 親水性ポリマーが、ポリアクリルアミド−コ−アクリル酸ナトリウム塩、ポリアクリル酸ナトリウム塩、ポリメタクリル酸ナトリウム塩、ポリアクリルアミド−2−メチル−1−プロパンスルホン酸ナトリウム塩、ポリ(4−スチレンスルホン酸)ナトリウム塩、ポリ(塩化アクリルアミド−コ−ジアルキルアンモニウム)、四級化ポリ[ビス−(2−クロロエチル)エーテル−alt−1,3−ビス[3−(ジメチルアミノ)プロピル]尿素]およびポリ(塩化ジアリルジメチルアンモニウム)、ポリアリルアンモニウムホスフェート、ポリ(塩化ジアリルジメチルアンモニウム)、ポリ(ナトリウムトリメチレンオキシエチレンスルホネート)、ポリ(臭化ジメチルドデシル(2−アクリルアミドエチル)アンモニウム)、ポリ(2−Nメチルピリジニウムエチレンヨウ素)、ポリビニルスルホン酸、およびポリ(ビニル)ピリジン、ポリエチレンイミン、およびポリリジンの塩、およびそれらの混合物よりなる群から選択されるポリ電解質である、請求項9に記載のコーティング調合物。
- イオン性化合物、好ましくは請求項10に記載のポリ電解質または低分子塩をさらに含んでなる、請求項1〜11のいずれか一項に記載のコーティング調合物。
- 少なくとも1つの界面活性剤をさらに含んでなる、請求項1〜12のいずれか一項に記載のコーティング調合物。
- 極性溶剤をさらに含んでなる、請求項1〜13のいずれか一項に記載のコーティング調合物。
- 請求項10〜14のいずれか一項に記載のコーティング調合物と、イオン性化合物、好ましくはポリ電解質または低分子量塩を含んでなる湿潤性流体とを含んでなる、滑性コーティングを調製するためのコーティングシステム。
- 請求項1〜14のいずれか一項に記載の医療コーティング調合物を硬化させて得られる、医療コーティング。
- 親水性医療コーティングである、請求項16に記載の医療コーティング
- 湿潤性流体を塗布して請求項17に記載の親水性医療コーティングを濡らして得られる、滑性医療コーティング。
- 湿潤性流体がイオン性化合物、好ましくはポリ電解質または低分子量塩を含んでなる、請求項18に記載の滑性医療コーティング。
- 請求項15に記載のコーティングシステムを使用してコーティング調合物を硬化させ、得られたコーティングを濡らして得られる、滑性医療コーティング。
- 請求項1に記載の多官能重合性化合物(a)を含んでなるポリマー網状組織を含んでなる、医療、親水性または滑性コーティング。
- 医療コーティング中での式(1)に記載の多官能重合性化合物の使用。
- 請求項16〜20のいずれか一項に記載の少なくとも1つの医療、親水性医療または滑性医療コーティングを含んでなる物品。
- 物品が医療装置または構成要素である請求項23に記載の物品。
- カテーテル、医療チューブ、ガイドワイヤ、ステントまたは膜を含んでなる、請求項24に記載の医療装置または構成要素。
- −請求項の1〜14のいずれか一項に記載のコーティング調合物を物品の少なくとも1つの表面に塗布するステップと、
−調合物を電磁放射に曝露してそれによって重合開始剤を活性化させ、コーティング調合物を硬化させるステップと、
−滑性コーティングの場合は続いてコーティングを湿潤性流体中で濡らすステップと
を含んでなる、医療、親水性または滑性コーティングを基材上に形成する方法。
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US20100114042A1 (en) | 2010-05-06 |
US20140180221A1 (en) | 2014-06-26 |
EP2059272A1 (en) | 2009-05-20 |
JP2010503436A (ja) | 2010-02-04 |
WO2008031595A3 (en) | 2008-06-05 |
WO2008031596A1 (en) | 2008-03-20 |
EP2061526B1 (en) | 2015-07-29 |
US8828546B2 (en) | 2014-09-09 |
WO2008031595A2 (en) | 2008-03-20 |
EP2059272B1 (en) | 2018-02-28 |
JP5499321B2 (ja) | 2014-05-21 |
US20100076546A1 (en) | 2010-03-25 |
US20160310643A1 (en) | 2016-10-27 |
JP5552690B2 (ja) | 2014-07-16 |
EP2061526A2 (en) | 2009-05-27 |
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