JP6139584B2 - 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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- JP6139584B2 JP6139584B2 JP2015042714A JP2015042714A JP6139584B2 JP 6139584 B2 JP6139584 B2 JP 6139584B2 JP 2015042714 A JP2015042714 A JP 2015042714A JP 2015042714 A JP2015042714 A JP 2015042714A JP 6139584 B2 JP6139584 B2 JP 6139584B2
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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。
本願発明に関連する発明の実施形態を以下に列挙する。
[実施形態1]
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。
[実施形態2]
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。
[実施形態3]
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。
[実施形態4]
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。
[実施形態5]
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。
[実施形態6]
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。
[実施形態7]
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実施形態1の方法。
[実施形態8]
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実施形態4の方法。
[実施形態9]
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実施形態1の方法。
[実施形態10]
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実施形態4の方法。
[実施形態11]
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実施形態1の方法。
[実施形態12]
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実施形態4の方法。
Claims (9)
- 一体式組成物を含む製造物品であって、前記一体式組成物は、少なくとも:
25℃の温度及び大気圧下で、水への溶解度が約0.1%未満であるポリマーと;
前記一体式組成物の重量に基づいて少なくとも約7重量%の親水性作用物質であって、ポリグリコール、ポリ(エチレングリコール)、ポリ(プロピレングリコール)、EVOH、ペンタエリスリトール、PVOH、ポリビニルピロリジン、ビニルピロリドン、又はポリ(N−メチルピロリドン)、及び、多糖類ベースの化合物、グルコース、フルクトース、及びそれらのアルコール、マンニトール、デキストリン、及び加水分解化でんぷん、及びそれらの混合物からなる群から選択された親水性作用物質と;
気体の形で抗菌性分散剤を放出するように構成された抗菌性放出物質と
を一体化することにより形成され、
前記一体式組成物は相互連絡通路を有し、前記相互連絡通路は前記親水性作用物質で占められ、前記抗菌性放出物質は前記相互連絡通路内又は前記相互連絡通路に隣接して存在し、前記抗菌性分散剤が前記一体式組成物から周囲大気に放出されるように、前記相互連絡通路は前記抗菌性放出物質からの気体の形の前記抗菌性分散剤を前記一体式組成物の外部に伝達する、製造物品。 - 製造物品が、食料及び医薬を内蔵するのに適した剛体のポリマー容器として構成された、請求項1に記載の製造物品。
- ポリマー又は厚紙から構成された容器内部に内挿される挿入物として形成された、請求項1に記載の製造物品であって、その挿入物は、どのような適切な形状のプラグの形態であってもよく、又そのプラグは、前記容器の内部に配置されるか、又は、前記容器の内部位置に固定されることができて、前記内部空間で可動となり、あるいは、前記挿入物は円板に形成され、ポリマーあるいは厚紙からなる容器の底部に加圧適合される形状および寸法にされた、製造物品。
- 請求項1に記載された製造物品であって、
ライナーに形成され、そのライナーは容器本体の内部表面に一致する外部表面を有し、前記容器本体内の位置に加圧適合されて、容器内部からの意図しない離脱を防止するように十分に保持された、製造物品。 - 請求項1に記載された製造物品であって、
プラグ又はライナーが構成されて、硬化するようにされ、その後、前記抗菌性放出物質を含有しないポリマー本体のより大きな収縮特性が、前記プラグ又はライナーの周りに容器本体を緊密に収縮適合させて、その容器本体と前記プラグ又はライナーとを相互に容易に離脱しないように、前記プラグ又はライナーの周りに前記容器本体を構成した、製造物品。 - 請求項1に記載された製造物品であって、
挿入物として成形され、かつプラグ又はライナーの形態に形成され、そして、ポリマー容器本体と共成形されて、その各々が、他のものと結合されて一体化された、製造物品。 - 請求項1に記載された製造物品であって、
シートとして成形され、そして、ポリマー容器本体と共成形されて、その各々が、他のものと結合されて一体化された、製造物品。 - 請求項7に記載された製造物品であって、
ポリマー容器本体と結合されて共成形されたシートが、シート物品に隣接して確立されており、そのシート物品は空気及び湿気に対して実質的に不透過性であり、結合された前記シートは、制御された環境下で貯蔵されるべき商品を包装するのに使用される、製造物品。 - フィルムに成形され、食品を内蔵する包装内に提供された、請求項1に記載の製造物品であって、前記フィルムは、前記包装内の微生物の数を低減するための状態を確立するよう構成された、製造物品。
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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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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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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 |
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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) |
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-
1998
- 1998-09-18 US US09/157,032 patent/US6316520B1/en not_active Ceased
-
1999
- 1999-09-17 EP EP99949720A patent/EP1159340B1/en not_active Revoked
- 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
-
2006
- 2006-06-14 JP JP2006165280A patent/JP2006274272A/ja not_active Withdrawn
-
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
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 |
JP2012036410A (ja) | 2012-02-23 |
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 |
ES2255302T3 (es) | 2006-06-16 |
CA2344188C (en) | 2012-02-07 |
EP1159340A1 (en) | 2001-12-05 |
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