JP2012036410A - 放出物質を有する一体式ポリマー組成物およびそれから得られた物品 - Google Patents
放出物質を有する一体式ポリマー組成物およびそれから得られた物品 Download PDFInfo
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- JP2012036410A JP2012036410A JP2011254110A JP2011254110A JP2012036410A JP 2012036410 A JP2012036410 A JP 2012036410A JP 2011254110 A JP2011254110 A JP 2011254110A JP 2011254110 A JP2011254110 A JP 2011254110A JP 2012036410 A JP2012036410 A JP 2012036410A
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Abstract
【解決手段】水不溶性ポリマーと、その内部に形成された親水性物質で形成される相互連絡チャンネル(45)およびその相互連絡チャネル内に吸収保持された放出性物質から構成された物品。相互チャネルはポリマー中の制御伝達通路として作用する。固化製品は、所望の造形品、例えば密閉容器用のプラグ型挿入物(55)およびライナー(70)を成形するために用いられ得るし、あるいはそれは、フィルム、シート(75)、ビーズまたはペレットに成形され得る。
【選択図】なし
Description
本出願は、米国特許第08/424,996号(1995年4月提出)の一部継続出願である米国特許第08/661,298号(1996年3月5日提出)の一部継続出願である米国特許第08/812,315号(1997年3月5日提出)の一部継続出願である米国特許第09/087,830号(1998年5月29日提出)の一部継続出願である。
本発明は、相互連絡チャンネルが組成物全体に確立される構造および方法の両方を開示する。これらの相互連絡チャンネルは、可塑性構造の外側から、放出物質が配置される内部位置に所望の特性を移動させる方法で、組成物の外部の適切な領域に共留化放出物質(entrained releasing material)を伝達する。さらに、所望の特性がそれを通って移動させられるこれらの相互連絡チャンネルは、組成物への伝達速度を制御する親水性作用物質(例えば、チャネリング剤)により占められる。親水性作用物質は、組成物の表面から内方に、組成物内に配置された放出剤への橋として作用するために用いられる。
開示された利点および改良の間で、本発明のその他の目的および利点は、添付の図面を参照しながら、以下の説明から明らかになる。図面は本明細書の一部を構成し、本発明の例示的実施態様を含み、その種々の目的および特徴を説明する。
以下の実施例の目的は、以下の物質を膨潤および重量損失分析に付すことにより、本発明の組成物が相互連絡チャンネルを有することを実証することである。さらに、以下の実施例は、本発明の組成物がある物質(例えば、ポリ(エチレングリコール))を放出し得ることを実証することである。
フィルム#1:約93%(w/w)のポリプロピレン(Exxon Chemicals、商品名エスコレンポリプロピレン3505G)および約7%(w/w)のポリ(エチレングリコール)(Dow Chemical、商品名E-4500)を十分に混合して、均一配合物を生成した。次に、約145℃〜約165℃の範囲の16帯域の温度で、約40 lbs/時間の供給速度で、約460 rpmのスクリュー速度で、そして6 inchダイで、Leistritz二軸スクリュー押出し機により、配合物を供給した。次に、約85℃〜約92℃の範囲の温度で三本ロール熱圧プレス機により押出し組成物を供給して、約4 milのフィルムを生成した。
円板(OD 1.1 cm)を3つの試料の各々から切り出した。各使用の初期乾燥重量を記録した。次に試料を2.0 ml蒸留水中でインキュベートして、室温で振盪しながら放置した。定期的に1、2、3および34日目に、円板を取り出して、ブロットされた表面を乾燥し、試料を計量して、膨潤の程度を確定した。各時点で、蒸留水を取り換えて、シンク条件を提供した。試験終了時に、試料を凍結乾燥して水分を除去し、試料を計量して、質量損失を確定した。図9は、分析結果のグラフである。膨潤%は、ある時点(t)での湿重量を初期乾重量(ゼロ)で割って、100を掛けた値と定義される。「乾燥」とは、34日間インキュベーション後の最終凍結乾燥試料重量を示す。
以下の実施例の目的は、本発明の組成物が、水不溶性ポリマーおよび親水性作用物質から成る2つの別個の相を有することを実証することである。
フィルム#4:100%のポリプロピレン(Exxon Chemicals、商品名エスコレンポリプロピレン3505G)を、約145℃〜約165℃の範囲の16帯域の温度で、約40 lbs/時間の供給速度で、約460 rpmのスクリュー速度で、そして6 inchダイで、Leistritz二軸スクリュー押出し機により供給した。次に、約85℃〜約92℃の範囲の温度で三本ロール熱圧プレス機により押出し組成物を供給して、約4 milのフィルムを生成した。
TAC 7DX熱制御器を装備したPerkin Elmer DSC7を用いて、処理フィルム試料を分析した。Perkin Elmer Pyrisソフトウェア(バージョン2.01)を用いて、データを分析した。試料を10または15℃/分の割合で-50から250℃に加熱し、次に同一速度で冷却して、次に同一速度で再び250℃に加熱した。以下の表は、DSCから収集されたデータである。融点データは融点ピーク(℃)で、第一加熱ランプ(1°)および第二加熱ランプ(2°)に関してはエンタルピー(△H、joules/gm)で示されている。図10〜18に示したカラムは、表からのデータに対応するDSCから出力されたグラフである。試料は250℃に加熱しただけであるため、フィルム試料#2、#3および#7の分子篩は溶融されず、したがって融点データは記録されなかった。
以下の実施例の目的は、本発明の組成物が相互連絡チャンネルを有し、親水性作用物質内に混合された水吸収性物質を有することを実証することである。
刺激損害を最小にするために8 Kv加速電圧で操作するHitachi S-2700顕微鏡を用いて、フィルムの構造特性を造影した。各フィルム試料を3つの透視画:1)フィルム表面、2)破断フィルム横断面(0°)、および3)配向#2(90°)に関して90°の角度での破断フィルム横断面で可視化した。前インキュベーションフィルム試料に、Polaron Instruments Sputter Coater E5100を用いて金−パラジウムの5〜10 nm層を直接スパッタ被覆した。後インキュベーション試料を、70%エタノール(w/w)10 ml中で撹拌しながら、室温で24時間インキュベートした。エタノールを捨て、試料を一夜風乾した。次に試料を凍結し、一夜凍結乾燥して、あらゆる残留水分を除去し、次にスパッタ被覆した。
図19A〜Cは、フィルム試料#4−100%ポリプロピレンの走査電子顕微鏡写真である。図19A〜Cは、水不溶性ポリマーが典型的には高密度均質形態で、実質的に多孔性でないことを説明する。外表面は、図19Aに示されている。図19Aは、高密度で且つ実質的に多孔性を示さない外表面を示す。横断図は、200倍の倍率で、図19Bに示されている。図19Bは、フィルムの脆性破断中に明示されたポリマーの平板様領域を示す。別の横断図は、1000倍の倍率で図19Cに示されている。図19Cは、高密度、小繊維性形態を示す。
以下の実施例の目的は、本発明の組成物の水吸収特性を実証することである。約50%(w/w)の分子篩[4オングストローム]、約12%(w/w)のポリ(エチレングリコール)および約38%(w/w)のポリプロピレンを有する、フィルム#1と同様の処理条件を有するフィルムの試料を作製し、以下の試験方法を用いて、その全重量の水分吸収に関して評価した:(a)ある環境小室を、22.2℃(72゜F)、相対湿度(Rh)10%に、別の小室を22.2℃(72゜F)および20%Rhに予備調整した;(b)皿を計量し、重量を記録した;(c)次にスケールを風袋調整して、秤から皿の重量を除去した;(d)次にフィルムを計量済の皿に添加した;(e)次に物質を計量し、重量を記録した;(f)試料を入れた計量皿を環境小室に入れた;(g)所望の時間、試料を小室に放置した;(h)所望時間に達した後、試料を入れた皿を取り出して、再計量し、重量を記録した;そして(i)分子篩1 g当たりの増加水分%を、(試料の全増量)/(試料中の分子篩の重量)x100により算出した。結果を図23A[10%Rh]および23B[20%Rh]に示す。4オングストロームの分子篩の重量当たりの増加した水分の最大理論値は、約24〜25%である。図23Aおよび23Bは、本発明の高伝達速度(例えば、水分吸収速度)を実証する。
Claims (12)
- 以下の:
(a)水不溶性ポリマー;
(b)処理中に、その融点より上に加熱される親水性作用物質;
(c)放出物質
から成る構成成分を組合せることにより生成される一体式組成物。 - 以下の:
(a)水不溶性ポリマー;
(b)処理中に、その融点より上に加熱される親水性作用物質;および
(c)放出物質
を包含する一体式組成物。 - 以下の:
(a)水不溶性ポリマー;
(b)処理中に、その融点より上に加熱される親水性作用物質;および
(c)放出物質
から成る構成成分を組合せることにより生成される一体式組成物であって、混合後の構成成分の組合せが少なくとも3つの相から成る組成物を生成する一体式組成物。 - 以下の:
(a)水不溶性ポリマー;
(b)処理中に、その融点より上に加熱される親水性作用物質;および
(c)放出物質
を包含する一体式組成物であって、混合後の構成成分の組合せが少なくとも3つの相から成る組成物を生成する一体式組成物。 - 以下の:
(a)水不溶性ポリマー;
(b)有機親水性作用物質;および
(c)放出物質
から成る構成成分を組合せることにより生成される一体式組成物であって、混合後の構成成分の組合せが少なくとも3つの相から成る組成物を生成する一体式組成物。 - 以下の:
(a)水不溶性ポリマーおよび親水性作用物質を併合し(この場合、ポリマーおよび作用物質は相互的に可溶性でない);
(b)ポリマーおよび作用物質を混合し;
(c)ポリマーおよび作用物質混合物を作用物質の融点より上に加熱し;
(d)放出物質を添加し;
(e)工程(d)の構成成分を混合し;
(f)組成物を冷却する
ことから成る工程により生成される一体式組成物。 - 水不溶性ポリマーがポリオレフィン、ポリカルボネートおよびポリアミドから成る群から選択される請求項1の方法。
- 水不溶性ポリマーがポリオレフィン、ポリカルボネートおよびポリアミドから成る群から選択される請求項4の方法。
- 親水性作用物質がポリグリコール、ポリ(エチレンビニルアルコール)、グリセリンおよびポリビニルアルコールから成る群から選択される請求項1の方法。
- 親水性作用物質がポリグリコール、ポリ(エチレンビニルアルコール)、グリセリンおよびポリビニルアルコールから成る群から選択される請求項4の方法。
- 造形品がシート、フィルム、ペレットおよびビーズから成る群から選択される請求項1の方法。
- 造形品がシート、フィルム、ペレットおよびビーズから成る群から選択される請求項4の方法。
Applications Claiming Priority (2)
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US09/157,032 US6316520B1 (en) | 1995-04-19 | 1998-09-18 | Monolithic polymer composition having a releasing material |
US09/157,032 | 1998-09-18 |
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JP2006165280A Division JP2006274272A (ja) | 1998-09-18 | 2006-06-14 | 放出物質を有する一体式ポリマー組成物およびそれから得られた物品 |
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JP2012036410A true JP2012036410A (ja) | 2012-02-23 |
Family
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JP2000574166A Withdrawn JP2002526581A (ja) | 1998-09-18 | 1999-09-17 | 放出物質を有する一体式ポリマー組成物 |
JP2006165280A Withdrawn JP2006274272A (ja) | 1998-09-18 | 2006-06-14 | 放出物質を有する一体式ポリマー組成物およびそれから得られた物品 |
JP2011254110A Withdrawn JP2012036410A (ja) | 1998-09-18 | 2011-11-21 | 放出物質を有する一体式ポリマー組成物およびそれから得られた物品 |
JP2015042714A Expired - Lifetime JP6139584B2 (ja) | 1998-09-18 | 2015-03-04 | 放出物質を有する一体式ポリマー組成物およびそれから得られた物品 |
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JP2000574166A Withdrawn JP2002526581A (ja) | 1998-09-18 | 1999-09-17 | 放出物質を有する一体式ポリマー組成物 |
JP2006165280A Withdrawn JP2006274272A (ja) | 1998-09-18 | 2006-06-14 | 放出物質を有する一体式ポリマー組成物およびそれから得られた物品 |
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US (1) | US6316520B1 (ja) |
EP (1) | EP1159340B1 (ja) |
JP (4) | JP2002526581A (ja) |
CN (2) | CN1290904C (ja) |
AT (1) | ATE310048T1 (ja) |
AU (1) | AU6253999A (ja) |
BR (1) | BR9913884A (ja) |
CA (1) | CA2344188C (ja) |
DE (1) | DE69928447T2 (ja) |
ES (1) | ES2255302T3 (ja) |
WO (1) | WO2000017260A1 (ja) |
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- 1998-09-18 US US09/157,032 patent/US6316520B1/en not_active Ceased
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- 1999-09-17 BR BR9913884-0A patent/BR9913884A/pt not_active IP Right Cessation
- 1999-09-17 CA CA2344188A patent/CA2344188C/en not_active Expired - Lifetime
- 1999-09-17 CN CNB2004100696090A patent/CN1290904C/zh not_active Expired - Fee Related
- 1999-09-17 AT AT99949720T patent/ATE310048T1/de not_active IP Right Cessation
- 1999-09-17 CN CNB998126756A patent/CN1195791C/zh not_active Expired - Fee Related
- 1999-09-17 WO PCT/US1999/021587 patent/WO2000017260A1/en active IP Right Grant
- 1999-09-17 AU AU62539/99A patent/AU6253999A/en not_active Abandoned
- 1999-09-17 ES ES99949720T patent/ES2255302T3/es not_active Expired - Lifetime
- 1999-09-17 JP JP2000574166A patent/JP2002526581A/ja not_active Withdrawn
- 1999-09-17 DE DE69928447T patent/DE69928447T2/de not_active Expired - Lifetime
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2006
- 2006-06-14 JP JP2006165280A patent/JP2006274272A/ja not_active Withdrawn
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2011
- 2011-11-21 JP JP2011254110A patent/JP2012036410A/ja not_active Withdrawn
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2015
- 2015-03-04 JP JP2015042714A patent/JP6139584B2/ja not_active Expired - Lifetime
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2016513748A (ja) * | 2013-03-14 | 2016-05-16 | シーエスピー テクノロジーズ,インコーポレイティド | 混入ポリマー中にチャネルを形成する物質、このような物質を含有する混入ポリマー、このような混入ポリマーの製造方法、およびそれを含む製品 |
Also Published As
Publication number | Publication date |
---|---|
US6316520B1 (en) | 2001-11-13 |
DE69928447T2 (de) | 2006-08-03 |
BR9913884A (pt) | 2001-10-16 |
CN1195791C (zh) | 2005-04-06 |
JP2015120931A (ja) | 2015-07-02 |
CN1324379A (zh) | 2001-11-28 |
WO2000017260A1 (en) | 2000-03-30 |
JP2006274272A (ja) | 2006-10-12 |
JP2002526581A (ja) | 2002-08-20 |
EP1159340A4 (en) | 2004-05-12 |
CA2344188A1 (en) | 2000-03-30 |
CN1290904C (zh) | 2006-12-20 |
EP1159340B1 (en) | 2005-11-16 |
DE69928447D1 (de) | 2005-12-22 |
ATE310048T1 (de) | 2005-12-15 |
AU6253999A (en) | 2000-04-10 |
CN1576301A (zh) | 2005-02-09 |
JP6139584B2 (ja) | 2017-05-31 |
ES2255302T3 (es) | 2006-06-16 |
CA2344188C (en) | 2012-02-07 |
EP1159340A1 (en) | 2001-12-05 |
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