JP5015603B2 - 僅かな微細ダスト含量を有する膨潤可能なヒドロゲル形成性ポリマー - Google Patents
僅かな微細ダスト含量を有する膨潤可能なヒドロゲル形成性ポリマー Download PDFInfo
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- JP5015603B2 JP5015603B2 JP2006544355A JP2006544355A JP5015603B2 JP 5015603 B2 JP5015603 B2 JP 5015603B2 JP 2006544355 A JP2006544355 A JP 2006544355A JP 2006544355 A JP2006544355 A JP 2006544355A JP 5015603 B2 JP5015603 B2 JP 5015603B2
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- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
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- 125000001037 p-tolyl group Chemical group [H]C1=C([H])C(=C([H])C([H])=C1*)C([H])([H])[H] 0.000 description 1
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
- A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
- A61L15/42—Use of materials characterised by their function or physical properties
- A61L15/60—Liquid-swellable gel-forming materials, e.g. super-absorbents
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
- C08G63/12—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
- C08G63/16—Dicarboxylic acids and dihydroxy compounds
- C08G63/20—Polyesters having been prepared in the presence of compounds having one reactive group or more than two reactive groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
- C08G63/60—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from the reaction of a mixture of hydroxy carboxylic acids, polycarboxylic acids and polyhydroxy compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D179/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen, with or without oxygen, or carbon only, not provided for in groups C09D161/00 - C09D177/00
- C09D179/02—Polyamines
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L5/00—Compositions of polysaccharides or of their derivatives not provided for in groups C08L1/00 or C08L3/00
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L91/00—Compositions of oils, fats or waxes; Compositions of derivatives thereof
- C08L91/06—Waxes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S524/00—Synthetic resins or natural rubbers -- part of the class 520 series
- Y10S524/916—Hydrogel compositions
Landscapes
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Description
R1は、水素、C1〜C4−アルキル、例えばメチルまたはエチル、またはカルボキシル基を表わし、
R2は、−COOR4、ヒドロキシスルホニルまたはホスホニル、C1〜C4−アルカノールでエステル化されたホスホニル基または式II
R3は、水素、C1〜C4−アルキル、例えばメチルまたはエチルを表わし、
R4は、水素、C1〜C4−アミノアルキル、C1〜C4−ヒドロキシアルキル、アルカリ金属イオンまたはアンモニウムイオンを表わし、
R5は、スルホニル基、ホスホニル基またはカルボキシル基、またはそれぞれこれらのアルカリ金属塩またはアンモニウム塩を表わす〕で示される化合物である。
R6、R7は、互いに無関係に水素、C1〜C12−アルキル、例えばメチル、エチル、n−プロピルまたはイソピル、C2〜C12−アルケニル、例えばエテニル、n−プロペニルまたはイソプロペニル、C7〜C20−アラルキル、例えばフェニルメチル、1−フェニルエチルまたは2−フェニルエチルまたはアリール、例えば2−メチルフェニル、4−メチルフェニルまたは4−エチルフェニルを表わし、
R6は、水素またはメチルを表わし;
nは、1〜10000の整数を表わす〕を有する。
測定は、別記しない限り、23±2℃の環境温度および50±10%の相対空気湿度で実施された。膨潤可能なヒドロゲル形成性ポリマーは、測定前に良好に混合される。
この方法の場合には、ティーバッグ中でのヒドロゲルの自由膨潤可能性が測定される。CRCの測定のために、乾燥されたヒドロゲル0.2000±0.0050g(粒子画分106〜850μm)は、60×85mmの大きさのティーバッグ中に計量供給され、引続きこのティーバッグは、溶着される。ティーバッグは、30分間0.9質量%の食塩水の過剰量中に供給される(食塩水少なくとも0.83 l/ポリマー粉末1g)。引続き、このティーバッグは、3分間、250Gで遠心分離される。ヒドロゲルによって堅固に保持された液体量の測定は、遠心分離されたティーバッグの質量を正確に量ることによって行なわれる。
AUL0.7psiを測定するための測定セルは、60mmの内径および50mmの高さを有するプレキシガラス円筒体であり、この円筒体は、下面に36μmの目開きを有する接着された特殊鋼製篩板を有する。更に、59mmの直径を有するプラスチック板およびプラスチック板と一緒に測定セル中に設置させることができる分銅は、測定セルに属する。プラスチック板の質量および分銅は、一緒になって1344gである。AUL0.7psiの測定を実施するために、空のプレキシガラス円筒体およびプラスチック板の質量が測定され、W0として記録される。更に、膨潤可能なヒドロゲル形成性ポリマー0.900±0.005g(粒径分布150〜800μm)は、プレキシガラス円筒体中に計量供給され、できるだけ均一に特殊鋼製篩板上に分布される。引続き、プラスチック板は、注意深くプレキシガラス円筒体中に設置され、全ての単位は、計量され;この質量は、Waとして記録される。更に、分銅は、プレキシガラス円筒体中のプラスチック板上に設置される。200mmの直径および30mmの高さを有するペトリ皿の中心部に120mmの直径および10mmの高さおよび多孔度0を有するセラミック濾板(Duran, Schott社)が置かれ、液体表面が濾板表面で終わるような程度に0.9質量%の塩化ナトリウム溶液は注入され、この場合濾板の表面は、湿潤されることはない。
AUL0.7psi[g/g]=[Wb−Wa]/[Wa−W0]
また、圧力下での吸収量は、EDANA(European Disposables and Nonwovens Association)によって推奨された試験方法No.442.2-02"圧力下での吸収量(Abdorption under pressure)"によっても測定されることができる。
0.3psi(2070Pa)の圧力負荷下での膨潤されたゲル層の液体転送は、欧州特許出願公開第0640330号明細書中の記載と同様に、超吸収性のポリマーからの膨潤されたゲル層のゲル層透過性として測定され、この場合上記の欧州特許出願公開明細書第19頁および図8に記載の装置は、ガラスフリット(40)がもはや使用されず、プランジャー(39)が円筒体(37)と同様のプラスチック材料からなり、今や全載置面に亘って均一に分布するように21個の同じ大きさの孔を含むように十分に変更されていた。測定の方法および評価は、欧州特許出願公開第0640330号明細書に対して不変のままである。通過流量は、自動的に記録される。
SFC[cm3/g]=(Fg(t=0)×L0)/(d×A×WP)
この場合、Fg(t=0)は、g/秒でのNaCl溶液の通過流量であり、これは、通過流量測定のデータFg(t)の線形の回帰分析につきt=0に対する外挿法によって得られ、Loは、cmでのゲル層の厚さであり、dは、g/cm3でのNaCl溶液の密度であり、Aは、cm2でのゲル層の面積であり、WPは、dyn/cm2でのゲル層上の静水圧力である。
この方法の場合には、膨潤可能なヒドロゲル形成性ポリマーが漏斗を貫流する速度が測定される。FLRを測定するために、100±0.01の乾燥されたヒドロゲルは、閉鎖可能な金属漏斗中に計量供給される。膨潤可能なヒドロゲル形成性ポリマーの質量は、W1として記録される。漏斗は、DIN53492に相当する。漏斗の流出管は、145.0±0.5mmの高さおよび10.00±0.01mmの内径を有する。水平方向に対する漏斗壁の傾斜角度は、20゜である。金属漏斗は、アースされている。引続き、漏斗は、開かれ、この漏斗が空になるまでの時間が測定される。時間は、tとして記録される。
FLR[g/s]=W1/t
また、流速は、EDANA(European Disposables and Nonwovens Association)によって推奨された試験方法No.450.2-02"流速(Flowrate)"によって測定されることができる。
この方法の場合、膨潤可能なヒドロゲル形成性ポリマーの密度は、流出後に測定される。測定は、DIN53466に相応する円筒状のピグノメーター(Pygnometer)で実施される。このピグロメーターは、100.0±0.5mlの体積、45.0±0.1mmの内径および63.1±0.1mmの高さを有する。ピグノメーターは、空の状態で計量される。この質量は、W1として記録される。ASGを測定するために、乾燥されたヒドロゲル約100gは、閉鎖可能な金属漏斗中に計量供給される。漏斗は、DIN53492に相当する。漏斗の流出管は、145.0±0.5mmの高さおよび10.00±0.01mmの内径を有する。
ASG[g/ml]=[W2−W1]/V
また、流出質量は、EDANA(European Disposables and Nonwovens Association)によって推奨された試験方法No.460.2-02"密度(Density)"によって測定されることができる。
破壊試験により、膨潤可能なヒドロゲル形成性ポリマーの挙動は、機械的負荷で測定される。試験は、閉鎖可能な石器容器で実施される。この石器容器は、85.7mm(3 3/8インチ)の直径、111.1mm(4 3/8インチ)の高さおよび379cm3(0.1ガロン)の体積を有する。開口は、31.8mm(1 1/4インチ)の直径を有する。蓋と一緒の高さは、139.7mm(5 1/2インチ)である。石器容器中に、膨潤可能なヒドロゲル形成性ポリマー50gおよび円筒状の石器微粉砕体127gが充填される。石器粉砕体は、12.7mm(1/2インチ)の直径、12.7mm(1/2インチ)の高さおよび約5.3gの単独質量を有する。石器容器は、閉鎖され、シリンダーミルを備えたロールミル(例えば、U.S. Stoneware社, US製)上で180rpmで回転される。
このダスト含量は、EDANA(European Disposables and Nonwovens Association)によって推奨された試験方法No.490.2-02"ダスト(Dust)"によって測定されることができる。
100mlのフラスコ中に膨潤可能なヒドロゲル形成性ポリマー30gは、計量供給される。引続き、このフラスコは、40℃および95%の相対空気湿度で2時間貯蔵される。貯蔵後、この膨潤可能なヒドロゲル形成性ポリマーは、流出される。流出挙動は、定量的に評価され、この場合、膨潤可能なヒドロゲル形成性ポリマーの表面上で安定した皮膜が形成され、この膨潤可能なヒドロゲル形成性ポリマーがフラスコ中に留まることは、"極めて劣悪"を意味し、膨潤可能なヒドロゲル形成性ポリマーが完全に流出されることは、"極めて良好"を意味し、フラスコの壁面上で膨潤可能なヒドロゲル形成性ポリマーからなる縁部が残ることは、前記の"極めて劣悪"と"極めて良好"の間の値を意味する。
実施例1および2
レーディゲ(Loedige)実験室用混合機中で、基本ポリマーASAP500Zを、それぞれ基本ポリマーに対してイソプロパノール/水3.16質量%(30:70)および2−オキサゾリジノン0.085質量%の噴霧および引続く175℃への加熱によって120分間、後架橋した。この場合には、場合によっては樹枝状ポリマーを添加した。引続き、得られたポリマーを850μmで篩別し、団塊を除去した。生成物を試験し、レーザー落下管法(Laser-Fallrohrmethode)を用いて微細ダスト(10μm未満)に対して分析した。同じ生成物をロールミルにより機械的に崩壊させ、再びダスト含量に対して試験した。
Claims (16)
- それぞれ2個以上のモノマーをそれぞれの既に結合されたモノマーと段階的に結合させることによって形成される合成巨大分子であり、したがってそれぞれの工程でモノマー末端基の数は、指数的に増加し、最終的に球状の樹枝構造が生じる樹枝状ポリマーを膨潤可能なヒドロゲル形成性ポリマー組成物に対して10質量%まで含有する膨潤可能なヒドロゲル形成性ポリマー組成物。
- 膨潤可能なヒドロゲル形成性ポリマー組成物が樹枝状ポリマーを少なくとも0.005質量%含有する、請求項1記載のポリマー組成物。
- 樹枝状ポリマーがポリオールと2,2−ジメチロールプロピオン酸とからなるポリエステルである、請求項1または2記載のポリマー組成物。
- 樹枝状ポリマーがポリプロピレンイミン、ポリアミドアミンまたはポリエステルアミドである、請求項1から3までのいずれか1項に記載のポリマー組成物。
- 付加的に粉末状の添加剤を含有する、請求項1から4までのいずれか1項に記載のポリマー組成物。
- 粉末状の添加剤が金属塩、熱分解法珪酸、多糖類、非イオン界面活性剤、ワックスおよび/または珪藻土である、請求項5記載のポリマー組成物。
- 10μm未満の直径を有する付加的な粒子の含量が50質量ppm未満である、請求項5または6に記載のポリマー組成物。
- 10μm未満の直径を有する付加的な粒子の含量が破壊試験の実施後に50質量ppm未満である、請求項5から7までのいずれか1項に記載のポリマー組成物。
- 請求項1から8までのいずれか1項に記載の膨潤可能なヒドロゲル形成性ポリマー組成物の製造法において、乾燥された吸水性ヒドロゲルを、それぞれ2個以上のモノマーをそれぞれの既に結合されたモノマーと段階的に結合させることによって形成される合成巨大分子であり、したがってそれぞれの工程でモノマー末端基の数は、指数的に増加し、最終的に球状の樹枝構造が生じる樹枝状ポリマーと混合することを特徴とする、請求項1から8までのいずれか1項に記載の膨潤可能なヒドロゲル形成性ポリマー組成物の製造法。
- 樹枝状ポリマーとしてポリオールと2,2−ジメチロールプロピオン酸とからなるポリエステルを使用する、請求項9記載の方法。
- 樹枝状ポリマーとしてポリプロピレンイミン、ポリアミドアミンまたはポリエステルアミドを使用する、請求項9記載の方法。
- 前記混合を表面後架橋と一緒に実施する、請求項9から11までのいずれか1項に記載の方法。
- 少なくとも1つの表面後架橋剤を含有する溶剤がイソプロパノールと水とからなる混合物である、請求項12記載の方法。
- 血液および/または体液を吸収するための請求項1から8までのいずれか1項に記載のポリマー組成物の使用。
- 尿を吸収するための請求項14記載の使用。
- 請求項1から8までのいずれか1項に記載のポリマー組成物を含有する衛生製品。
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-
2004
- 2004-12-17 WO PCT/EP2004/014396 patent/WO2005061014A1/de active IP Right Grant
- 2004-12-17 EP EP04804002A patent/EP1696974B1/de not_active Expired - Lifetime
- 2004-12-17 AT AT04804002T patent/ATE362776T1/de not_active IP Right Cessation
- 2004-12-17 DE DE502004003914T patent/DE502004003914D1/de not_active Expired - Lifetime
- 2004-12-17 JP JP2006544355A patent/JP5015603B2/ja not_active Expired - Fee Related
- 2004-12-17 US US10/581,562 patent/US7553903B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
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US7553903B2 (en) | 2009-06-30 |
DE502004003914D1 (de) | 2007-07-05 |
JP2007534785A (ja) | 2007-11-29 |
US20070106239A1 (en) | 2007-05-10 |
WO2005061014A1 (de) | 2005-07-07 |
ATE362776T1 (de) | 2007-06-15 |
EP1696974A1 (de) | 2006-09-06 |
EP1696974B1 (de) | 2007-05-23 |
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