JP2015532662A - 温度変動感受性化学組成物並びにその製造及び使用方法 - Google Patents
温度変動感受性化学組成物並びにその製造及び使用方法 Download PDFInfo
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- JP2015532662A JP2015532662A JP2015526002A JP2015526002A JP2015532662A JP 2015532662 A JP2015532662 A JP 2015532662A JP 2015526002 A JP2015526002 A JP 2015526002A JP 2015526002 A JP2015526002 A JP 2015526002A JP 2015532662 A JP2015532662 A JP 2015532662A
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- Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
Description
−製品、例えば食料製品の「冷蔵」は、典型的には−1℃〜+8℃の温度での冷却及び維持からなる;及び
−製品の「冷凍」は、製品を−18℃未満の温度で冷却及び維持することに相当する。
−「ペースト状」の外観;
−PVPのネットワークが磁鉄鉱のナノ粒子を安定化する能力が部分的に不能となることによって引き起こされる時間の経過に伴う感度の大幅な低下、ナノ粒子は特定の時間後に漸進的に集塊し、既知の通り孤立SD(単磁区)粒子にしか作用しないブラウン機構による消磁がそれ以上不可能となる。
−炭素原子数C8〜C14のアルコール、ポリテトラヒドロフラン又はこれらの混合物を含む群から選択される少なくとも1つの極性溶媒;
−磁鉄鉱、置換磁鉄鉱及び/又はフェライトを含む群から選択され、溶媒の5〜15体積%の量であり、約20nm〜50nmの直径を有する、安定単磁区(SSD)型の多数の磁化可能粒子を包含する、強磁性成分;及び
−PVB又はPVB−ビニルアルコール−酢酸ビニルコポリマーを溶媒の3〜15体積%の割合で包含するポリマー成分であって、このポリマー成分がネット又はメッシュの形状をしており、多数のハウジングセル又はゾーンを分界し、該セル又はゾーンのそれぞれにおいて粒子の1つが極性溶媒に浸漬されて収容される。
−少なくとも1つの極性溶媒及び極性ポリマー成分を混合し、それによって混合物を得る工程、
−強磁性成分を前記混合物と、均一な流体が得られるまで混合する工程。
−本発明によるインクを提供する工程;
−製品の包装にインクを印刷する工程;
−インクに含有される組成物に、特定の方向を有する磁場を印加する工程;
−製品を保存する工程;
−組成物の残留磁化を試験し、それによって製品保存ゾーンで到達した最高温度、及び低温流通体系の中断回数を決定することができる工程。
−炭素原子数C8〜C14のアルコール、ポリテトラヒドロフラン又はこれらの混合物を含む群から選択される少なくとも1つの極性溶媒;
−磁鉄鉱、置換磁鉄鉱及び/又はフェライトを含む群から選択される安定単磁区(SSD)型の多数の磁化可能粒子を溶媒の5〜15体積%、好ましくは溶媒の10体積%の量で包含する強磁性成分であって;該粒子が好ましくは約20nm〜50nmの直径を有し;強磁性成分の割合が5%未満では磁荷が低くなりすぎるのに対し、割合が15%を超えると粒子の集塊が起こる可能性がある(これは不完全な磁化を意味する)、強磁性成分;及び
−PVB又はPVB−ビニルアルコール−酢酸ビニルコポリマーを溶媒の3〜15体積%の割合で包含するポリマー成分
を含む。
−PVBが5.5%未満という低い割合の磁性組成物を安定化することができ、乳化性の効果を与える;
−組成物を単に加熱することによって、溶媒として脂肪族アルコール、ポリマーとしてPVBを含む組成物よりも大幅に粘度を低下することができる;したがって、ポリ(テトラヒドロフラン)を含む本発明の組成物が粘稠すぎて乳化できない場合、典型的には50℃〜60℃に単に加熱することによって、流動性を増大することができる;
−実験的に、乳液の状態で、カプセル化が起こる容器の壁を汚さないことが実験的に観察される:したがって、収率が高くなり、装置の保全(清掃)が短時間になる。
−蒸発しない:オクタノール、デカノール、ドデカノール等の脂肪族アルコールは、(液体状態で)蒸発し、マイクロカプセルの壁を通過する傾向を、特に壁がゼラチンでできている場合に有する:その結果は、カプセル化組成物の乾燥であり、その場合、組成物はもはやブラウン機構によって安定化することができない;
−脂肪族アルコール(特にオクタノール及びデカノール)に関して、取扱いの際に特段の注意を必要としない;
−得られるセンサが所与の用途に対して高感度すぎる場合、溶媒の粘度を増大することによって消磁速度を低下することができる;
−脂肪族アルコールは非常にはっきりした融点を有するのに対し、ポリ(テトラヒドロフラン)はかなり広い温度範囲で溶融し、蝋様固体から「糖液」へと変化する:目的が、非常に正確な温度での素早い消磁である場合は、組成物の脂肪族アルコール含量を高くするのに対し、温度に応じた漸進的消磁が要求される場合はポリ(テトラヒドロフラン)含量が高い組成物を使用すると好都合である。
−試料1:50gのCoFe2O4を53.4gのオレイン酸に分散した後、115gのPHTFと6.5gのPVBの混合物を添加;及び
−試料2:2.3gのCoFe2O4を2.254gのオレイン酸に分散した後、115gのPHTFと6.5gのPVBとの混合物を添加。
Claims (14)
- −炭素原子数C8〜C14のアルコール、ポリテトラヒドロフラン又はこれらの混合物を含む群から選択される少なくとも1つの極性溶媒(4);
−磁鉄鉱、置換磁鉄鉱及び/又はフェライトを含む群から選択され、溶媒の5〜15体積%の量で、約20nm〜50nmの直径を有する安定単磁区(SSD)型の多数の磁化可能粒子(1)を包含する、強磁性成分;及び
−ポリビニルブチラール(PVB)又はポリビニルブチラール−ビニルアルコール−酢酸ビニルコポリマーを溶媒の3〜15体積%の割合で包含するポリマー成分(2)であって、前記ポリマー成分がネット又はメッシュの形状をしており、多数のハウジングセル又はゾーン(3)を分界し、そのそれぞれにおいて前記粒子(1)の1つが極性溶媒(4)に浸漬されて収容されている、ポリマー成分
を含む、 磁化可能な化学組成物。 - 前記溶媒が炭素原子数C8〜C14のアルコールを含む場合に、前記ポリマー成分は、溶媒の8体積%〜15体積%の割合で存在することを特徴とする、請求項1に記載の組成物。
- 前記溶媒がポリテトラヒドロフラン又はポリテトラヒドロフランの混合物、及び炭素原子数C8〜C14のアルコールを含む場合に、前記ポリマー成分は、溶媒の3体積%〜7体積%の割合で存在することを特徴とする、請求項1に記載の組成物。
- 焼成シリカ(5)を含むことを特徴とし、前記焼成シリカ(5)が溶媒の2重量%未満の量で存在する、請求項1、2又は3に記載の組成物。
- 脂肪酸を含むことを特徴とする、請求項1〜4のいずれか一項に記載の組成物。
- 前記脂肪酸が、オレイン酸、リノール酸、リノレン酸及びミリスチン酸を含む群から選択されることを特徴とする、請求項5に記載の組成物。
- 以下の工程を順番に含む、請求項1〜6のいずれか一項に記載の組成物を得る方法:
−前記少なくとも1つの極性溶媒(4)及び前記ポリマー成分(2)を混合し、それによって混合物を得る工程、及び
−前記強磁性成分(1)を、均一な流体が得られるまで、前記混合物と混合する工程。 - 前記強磁性成分が、前記脂肪酸中に事前分散され、その後前記組成物の他の成分と混合されることを特徴とする、請求項7に記載の方法。
- 請求項1〜6のいずれか一項に記載の組成物のマイクロカプセル(6)。
- ゼラチン又はイソシアネート若しくはメラミン−ホルムアルデヒド樹脂又はフェノール樹脂で作製された格納壁(7)を具備することを特徴とする、請求項9に記載のマイクロカプセル。
- 請求項9又は10に記載の多数のマイクロカプセルを含むインク。
- 水、油、アルコール、酢酸エチルを含む群から選択される溶媒、並びにニトロセルロース、アクリル樹脂、ビニル樹脂、マレイン酸樹脂、フマル酸樹脂、ケトン樹脂、ポリウレタン樹脂及びポリアミド樹脂を含む群から選択される樹脂及び顔料を含むことを特徴とする、請求項11に記載のインク。
- −請求項11又は12に記載のインクを提供する工程;
−製品の包装に前記インクを印刷する工程;
−前記インクに含有される請求項1〜6のいずれか一項に記載の組成物に、特定の方向を有する磁場を印加する工程;
−前記製品を保存する工程;
−前記組成物の残留磁化を試験する工程であって、それによって前記製品の保存ゾーンで到達した最高温度を決定することができる工程
を含む、製品を試験又は分析する方法。 - 前記磁化試験工程中に、残留磁化(Bm)を、安全な製品から安全でない製品への移行に対応する消磁を示す閾値(BTH)と比較することを特徴とする、請求項13に記載の方法。
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RU2015108041A (ru) | 2016-09-27 |
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BR112015002756A2 (pt) | 2017-07-04 |
BR112015002756B1 (pt) | 2021-11-16 |
AU2013301154A1 (en) | 2015-02-26 |
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AU2013301154B2 (en) | 2017-01-19 |
IL236800A (en) | 2017-10-31 |
CA2879375C (en) | 2020-03-24 |
IN2015DN00462A (ja) | 2015-06-26 |
ITVR20120168A1 (it) | 2014-02-11 |
RU2643545C2 (ru) | 2018-02-02 |
WO2014024162A1 (en) | 2014-02-13 |
JP6660047B2 (ja) | 2020-03-04 |
MX2015001803A (es) | 2015-05-07 |
EP2882816B1 (en) | 2018-04-25 |
MX363586B (es) | 2019-03-27 |
US20150168224A1 (en) | 2015-06-18 |
CA2879375A1 (en) | 2014-02-13 |
CN104540901A (zh) | 2015-04-22 |
CN104540901B (zh) | 2016-11-09 |
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