TW413631B - Absorbent article - Google Patents
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- TW413631B TW413631B TW087120079A TW87120079A TW413631B TW 413631 B TW413631 B TW 413631B TW 087120079 A TW087120079 A TW 087120079A TW 87120079 A TW87120079 A TW 87120079A TW 413631 B TW413631 B TW 413631B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
- A61F13/534—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad
- A61F13/537—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer
- A61F13/53708—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer the layer having a promotional function on liquid propagation in at least one direction
- A61F13/53717—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer the layer having a promotional function on liquid propagation in at least one direction the layer having a promotional function on liquid propagation in the horizontal direction
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
- A61F13/534—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad
- A61F13/537—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer
- A61F13/53708—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer the layer having a promotional function on liquid propagation in at least one direction
- A61F13/53713—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer the layer having a promotional function on liquid propagation in at least one direction the layer having a promotional function on liquid propagation in the vertical direction
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
- A61F13/534—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad
- A61F13/537—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer
- A61F13/53743—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer characterised by the position of the layer relative to the other layers
- A61F13/53747—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer characterised by the position of the layer relative to the other layers the layer is facing the topsheet
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
- A61F13/534—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad
- A61F13/537—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer
- A61F13/5376—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer characterised by the performance of the layer, e.g. acquisition rate, distribution time, transfer time
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/15203—Properties of the article, e.g. stiffness or absorbency
- A61F2013/15284—Properties of the article, e.g. stiffness or absorbency characterized by quantifiable properties
- A61F2013/15406—Basis weight
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
- A61F2013/530131—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium being made in fibre but being not pulp
- A61F2013/530138—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium being made in fibre but being not pulp characterized by the fibre length
- A61F2013/530153—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium being made in fibre but being not pulp characterized by the fibre length being long
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
- A61F2013/530131—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium being made in fibre but being not pulp
- A61F2013/530182—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium being made in fibre but being not pulp characterized by the connection between the fibres
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
- A61F13/534—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad
- A61F13/537—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer
- A61F2013/53765—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer characterized by its geometry
- A61F2013/53778—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer characterized by its geometry with grooves
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- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Epidemiology (AREA)
- Animal Behavior & Ethology (AREA)
- Veterinary Medicine (AREA)
- Absorbent Articles And Supports Therefor (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
- Laminated Bodies (AREA)
- Nonwoven Fabrics (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Description
芍年41363i 「J-亡案號87120079 一 的年‘月 曰 修正j 立、發明說技) :藝以==體储存能力等相關性,,熟悉本 有了瞭解而不須坪加說明,嬰兒尿布及 吊見之薄吸收體常由纖維素絨毛聚與 =; 合或層狀結構所構成。 4及收物之-壓縮混 在液體不可穿透背頁3之外部上,排列有— ;之結件裝置,圖1所示類型之一失禁防J件:形 ^ Ϊ6失/者所使用且可容易地穿戴於-般内褲上,該二; ^置6」乍用為使該失禁防護件使用時保持在内裤適當位置 :類‘然亦可有如橫向式等數種其他類型膠 結件裝置,譬如釣與環、子母扣、環卜特殊内' 所*類型之一失帛防料主要供患有較輕微失禁者 且可易於穿戴在一般内褲中,結件裝置6作用為使用 時將該失禁防護件保持在適當位置中。 * °玄失禁防濩件係為沙漏型,其具有較寬端部7及一位於 蚝。ί5間之較+胯部8,胯部8係為失禁防護件使用時穿在用 者腿邛間胯部中之部分並作為所排放體流物之一收納部 分。 ^圖3顯示一尿布形式之吸收性物件,其類似上述失禁防 濩件包含一液體可穿透頂頁2、一液體不可穿透背頁3、及 其間包圍之吸收體4、及尚施用於該頂頁£與吸收體4間 獲取層5,所示實施例中,該頂頁具有一與所需濕潤 區^相對之孔16,其上該獲取層5在此區域中直接向用者 暴露’亦可用數件較小之孔而非單一之孔丨6。 該床布以一對吸收褲用來包圍用者身驅下部,其具有一
2000. 06.16.010 413631 五、發明說明(1) ' 技術範圍 _ 本發明有關一種吸收性物件,譬如尿布、尿布褲、失禁 防護件、衛生棉、傷口包紮或類似物件,其含有一液體可 穿透頂頁、一液體不可穿透背頁及一排列其間之吸收體。 發明背景 上述類型之吸收性物件用以吸收體流液如尿液及血液, 通常包含一液體可穿透頂頁,其為如紗結材料等不織布材 料形式,並用以於使用時面對用者,亦知其於該頂頁與吸 收體之間採用一液體獲取層,該液體獲取層具有快速收納 大量液體、在鋪置吸收體吸收前先行將其分配並暫存之能< 力,這在現今常具有大量所謂超吸收物之薄壓縮吸收體中 特別重要1該超吸收物具有高吸收能量,但在許多情形 下,對於瞬間吸收排尿時幾秒内大量排出的液體,其吸收 速度過慢。
一種多孔較厚獲取層,譬如為一纖維性填料形式、--F 狀纖維性膜或其他類型纖維性材料具有一高度瞬間液體收 納能量,且可在吸收體吸收之前暫存液體,同理亦適用於 多孔泡棉材料,該液體接著成功排入鋪置吸收體,之後該 獲取層再度具有由重覆濕潤收納液體之能量。 含有此種多孔獲取層之吸收性物件範例譬如揭示於 US-A—3,371,667 、ΕΡ-Α-0,312,118&ΕΡ-Α—0,474,777*, 現今在吸收性物件中作為獲取層之材料大多數作用良好但 較昂貴,且有時獲取時間不足,特別是在有關大量液體之 第二及第三次濕潤中如此。
L:\56\56085.PTD 第7頁 ㈣月〖兔ϋ 413631
案號 87I2007Q 五、發明說明(8) \~r. V η---θ__ 5克/平方公尺’較佳為5_5〇〇 5-200克/平方公尺,而纖维厚戶=么尺犯圍,且更佳為 較佳為I.5-25且更佳為2 又〜為0.5一50 hex範圍, 與上述相同,頂頁12之下排列古eX,該材料在其他方面可 根據『之吸收性物件尚包含列―有;:需類型之獲取層U, 透背頁13。 匕3及收體14及一液體不可穿 根據圖8之實施例中,如太 . 知人TS : Q说 々本七明之該結合纖維絲束已作 .1A x 何枓,遠表面重量在此例中應至少 為10克/手方公尺,較佳為ΐη_ΪΛηη ^ 700 ± , T权佳為1〇 1 0 0 0克/平方公尺範圍,更 方公尺,且最佳為3"5〇克/平方公尺, 而纖維厚度應為0.5-50 dtex範圍,較佳為15_25且更佳 為2-15 dtex,根據圖8之吸收性物件同樣尚包含一吸收體 24及一液體不可穿透背頁23。 根據圖9之實施例與圖8揭示者不同處在於如不織布形式 等之一支撐材料25已經整合在該組合頂頁/獲取層22底側 上,此一支撐材料當然可另外或亦整合至頂頁/獲取層22 的上側’或根據圖9整合至獲取層5,或根據圖7整合至頂 頁 12 根據圖7 - 9之實施例中,如本發明之該結合纖維絲束將 直接碰觸用者皮膚,此例中對材料有高度柔軟度及舒適性 之需求,因為該材料係以連續纖維構成,故無突出尖銳纖 維端來刺激皮膚,但該材料非常柔軟服順,此外’由於在 縱向提供強度之縱連續纖維9及橫向提供強度之結合樣 式,其具有足夠強度及抗磨耗性。
413631 五、發明說明(2) 先前由EP-A-0, 391,81 4及GB-B- 2, 20 9, 6 72已知於吸收性 物件中使用稱為”絲束”之連續未結合合成纖維,以於該物 件縱向中分散液體。 另一項問題係為用於此類吸收性物件之傳統液體可穿透 頂頁材料,一般為如紗結材料等合成纖維之不織布材料, 相較於獲取層,常有一對液體之較低獲取速率,因此液體 在到達該獲取層前即可由該物件洩漏,此問題當然可藉由 使用一極開放頂頁材料及具有高液體穿透性而加以解決, 但此種開放頂頁材料可造成強度過低之問題,且由該獲取 層之尖銳纖維端可能穿過該開放頂頁材料,而刺激用者皮 膚。 本發明之目的及最重要特徵 本發明之目的係為提供一對於液體具有高獲取速率之材 料,且在重覆濕潤時亦具有高強度及抗磨耗性、高度舒適 性、且可以低成本製造,這藉由本發明以稱為"絲束"之一 層連續纖維加以提供,其以一結合樣式用點、點區、或線 加以結合,但其中該纖維除此之外大致未彼此結合。 該材料層可作為位於一頂頁材料下之液體獲取層、作為 一頂頁材料、或作為一整合頂頁/液體獲取層。 圖式說明 本發明將參照部分圖示實施例更詳細地說明: 圖1係為一失禁防護件形式之吸收性物件其一平面圖。 圖2係為如圖1的線I I - I I之一剖面。 圖3係為一尿布形式之吸收性物件其一平面圖。
L:\56\56085.PTD 第8頁 413631 元件符號簡要說明 案號87120079 年月 曰 修正系 ' - ' · ' , X" 五、發明說明(11) 1 失禁防護件 2 液體可穿透頂頁 3 液體不可穿透背頁 4 吸收體 5 液體獲取層 6 黏膠條形式之結件裝置 6’ 褲型膠條 7 較寬端部 7a 前部 7b 背部 8 較窄胯部 9 連續纖維 10 結合樣式 11 一件連續纖維9之層 12 頂頁 13 液體不可穿透背頁 14 吸收體 15 獲取層 16 孔 22 組合之頂頁/獲取層 23 液體不可穿透背頁 24 吸收體 25 支撐材料/架
O:\56\56085.ptc 第17頁 2000. 06.16. 017 413631 五、發明說明(3) 圖4示意顯示根據本發明之一件纖維性材料層。 圖5放大顯示一根據圖3的線IV-IV之一剖面。 圖6 - 9係為根據本發明之物件其四件不同實施例的示意 分解橫剖視圖。 圖1 0係為一裝置之示意圖,其用於示範摺疊一吸收性物 件,而用以於用者腿部間獲取液體。 實施例之說明 圖1及2示意顯示一失禁防護件1之一範例,其包含一液 體可穿透頂頁2、一液體不可‘穿透背頁3、及一包圍其間之 吸收體4,一多孔彈性液體獲取層5係排列於該液體可穿透 頂頁2與該吸收體4之間。 該液體可穿透頂頁2可包含一不織布材料,譬如一合成 長絲之紗結材料、一融吹材料、一熱結材料或一卡結纖維 性材料,該液體不可穿透背頁3可包含一塑膠膜、一不織 布材料,其塗裝有一液體不可穿蘧材料或一抵抗液體穿過 之斥水不織布材料。 頂頁2及背頁3比吸收體4及液體獲取層3具有一較大表面 積,並延伸到該處邊緣之外,該層2及3譬如藉由膠合、或 是熱熔接或超音波熔接,於突出部内互連。 該吸收體4可為任意之傳統類型,常見吸收材料範例為 纖維素絨毛漿、薄纸層、高吸收性聚合物(稱為超吸收 物)、吸收泡棉材料、吸收不織布材料之類,常將纖維素 絨毛漿與超吸收物組合於吸收體令,亦常具有一包含數層 不同材料之吸收體,其中該等材料具備不同之液體獲取能
L:\56\56085.PTD 第9頁 芍年41363i 「J-亡案號87120079 一 的年‘月 曰 修正j 立、發明說技) :藝以==體储存能力等相關性,,熟悉本 有了瞭解而不須坪加說明,嬰兒尿布及 吊見之薄吸收體常由纖維素絨毛聚與 =; 合或層狀結構所構成。 4及收物之-壓縮混 在液體不可穿透背頁3之外部上,排列有— ;之結件裝置,圖1所示類型之一失禁防J件:形 ^ Ϊ6失/者所使用且可容易地穿戴於-般内褲上,該二; ^置6」乍用為使該失禁防護件使用時保持在内裤適當位置 :類‘然亦可有如橫向式等數種其他類型膠 結件裝置,譬如釣與環、子母扣、環卜特殊内' 所*類型之一失帛防料主要供患有較輕微失禁者 且可易於穿戴在一般内褲中,結件裝置6作用為使用 時將該失禁防護件保持在適當位置中。 * °玄失禁防濩件係為沙漏型,其具有較寬端部7及一位於 蚝。ί5間之較+胯部8,胯部8係為失禁防護件使用時穿在用 者腿邛間胯部中之部分並作為所排放體流物之一收納部 分。 ^圖3顯示一尿布形式之吸收性物件,其類似上述失禁防 濩件包含一液體可穿透頂頁2、一液體不可穿透背頁3、及 其間包圍之吸收體4、及尚施用於該頂頁£與吸收體4間 獲取層5,所示實施例中,該頂頁具有一與所需濕潤 區^相對之孔16,其上該獲取層5在此區域中直接向用者 暴露’亦可用數件較小之孔而非單一之孔丨6。 該床布以一對吸收褲用來包圍用者身驅下部,其具有一
2000. 06.16.010 413631 五 '發明說明(5) ^ 月tJ部7a,在使用時用以穿戴接觸用者身體前部、一背部 . Υ ’在使用時用以穿戴接觸用者背部、及其間之一較窄胯 #8 ’用以穿戴於用者腿部間之胯部中,為了將該尿布沿 用者腰部與所需褲型膠條6 ’緊結在一起,亦可能有如鉤與 環楚置(魔鬼貼Velcro) '鉤等結件裝置。 請注意上述及圖示之失禁防護件及尿布僅為吸收性物件 之非限制性範例,因此,可改變該物件之形狀及構造,該 吸收性物件亦可為一尿布、一尿布褲、—衛生棉之類,該 吸收性物件可為可棄式或可重覆使用,但對於可重覆使用 f生物件,上述q外的其他材料係分別作為—液體穿透頂頁( 丨吸收體。 I .液體穿透頂頁2與吸收體4之間’具有一多孔彈性獲取層 :5* ’其具声快速收納大量液體並分配該液體且在由舖置吸 呎j體4吸_之前先行將其暫存之能力,在該材料濕潤之後 丨扣1 障大致I維持此能力’該獲取層5可覆蓋整個吸收體4,延 伸該處之外或僅覆蓋部分之吸收體中央部份。 根據本發明,獲取層5係包含一層稱為'f絲束”之連續纖 維9,其以點、點區或線結合在一起形成一結合樣式丨〇 ‘, 但除此之外大致未彼此結合,圖1所不實施例中,該纟士人 樣式1 0係為具有鋸齒構造排列的短線線型,該結合x樣< 由如超音波熔接或其他熱熔接達成’其他適當熱熔接 範例為圖案軋光、雷射結合等,這表示絲束’中至少部八 纖維為熱塑性,熱塑纖維之範例係為聚烯烴、聚交°二 酿胺 '聚酯之類,亦包括了所謂雙組分。可以透過 ' π确印
L:\56\56085.PTD 第11頁 413631 五、發明說明(6) 結合或點結合之一結合劑或透過針織或水喷注以所謂纏連 的機械方式作為熱結合之一替代方式,結合類型之選擇主 要由該絲束中所用之纖維類型而定。 結合樣式1 0之設計當然可有廣泛變化,該樣式可為點、 點區、或較佳為線之形式,該線可為直線及彎曲且長度可 自數公厘變成為橫向延伸或對整體物件對角廷伸之線,該 線較佳橫向或斜向延伸過纖維9之縱向,故多數纖維以各 結合線彼此結合,若由跨過纖維縱向所見,不同結合線彼 此重疊亦為一優點,故部分纖維至少在其某部分長度上結 合。 該結合樣式在整個獲取層5上可相同或在不同部分上可 不同,因此該結合樣式在濕潤區域中可更加稀疏而在該處 之外則更為緊密,亦可能將結合樣式設計成該層5在物件 不同部分中具有不同厚度之方式,譬如在中央部分較薄而 在圍繞邊緣部分較厚,以產生一提供液體收納容積之碗狀 形狀,另外可為中央部分比圍繞邊緣部分更厚,以提供一 較良好之身體接觸。 纖維絲束係以袋或是連續纖維捲或綑形式供應,其可為 直線、摺縐或捲西狀,此情形中較佳為摺縐或捲曲纖維1 因其提供一極開放且通氣結構,該綑之類於特殊轉換裝置 中開啟,其中纖維彼此分離、拉伸、並展開成一大致平整 厚層,該層根據上述以所需結合樣式結合並在施用於吸收 性物件之前或之後以適當長度切割,該結合可另於切割之 後製造,相較於不織布、填料之類常作為獲取材料者,絲
L:\56\56085.PTD 第12頁 413631 ---— 五、發明說明(7) 束係為纖維之一較便宜輸送形式。 圖4與5中’示意顯示一件連續纖維9之層} 1, 兵已經以 具有棱向短線之簡單結合樣式1 〇加以結合,孩纖… 合處外皆未彼此結合。 除結 絲束中之纖維可為如聚乙烯、聚丙烯、聚醯胺、a ..乂£ §旨、 聚父如、聚醋酸乙烯酯、醋酸纖維素、再生纖% Μ ’卡f如黏纖 及人造絲、或是具有一低熔點聚合物殼及一高像點聚人物 核心之雙組分類型,一雙組分類型中,未熔化之該核二^ 供硬度及彈性而該殼提供了結合性,尤其較佳的是此種2 維具有一高彈性,譬如聚酯、共聚酯及聚丙烯。 纖維厚度可改變但應為0 · 5至5 0 d t e X範圍,若該材料用 作一獲取層時,較诖為】.5至25且最佳為2至15 dtex,該 開放通氣結構聯合較粗纖維尺寸呈現出一極快速液體獲 取’除此之外,由於在縱向提供強度之連續纖維及於橫向 提供強度之結合樣式,該材料甚為強固。 上例中’該材料已用作液體穿透頂頁2下方之一獲取層 5,此亦顯示於圖6中,該結合纖維絲束之基重此例中應至 少為10克/平方公尺,較佳具有10-1000克/平方公尺之範 圍’更仏為30-700克/平方公尺’隶佳為30-350克/平方公 尺’頂頁2可視需要為任意類变’但較佳具有一可供快速 液體獲取之較開放結構,該頂頁2可於結合點丨0上結合至 獲取層5。 圖7中顯示另一實施例,其中根據本發明之該結合纖維 絲束用作—液體可穿透頂頁1 2,該基重在此例中應至少為
L:\56\56085.PTD 第13頁 ㈣月〖兔ϋ 413631
案號 87I2007Q 五、發明說明(8) \~r. V η---θ__ 5克/平方公尺’較佳為5_5〇〇 5-200克/平方公尺,而纖维厚戶=么尺犯圍,且更佳為 較佳為I.5-25且更佳為2 又〜為0.5一50 hex範圍, 與上述相同,頂頁12之下排列古eX,該材料在其他方面可 根據『之吸收性物件尚包含列―有;:需類型之獲取層U, 透背頁13。 匕3及收體14及一液體不可穿 根據圖8之實施例中,如太 . 知人TS : Q说 々本七明之該結合纖維絲束已作 .1A x 何枓,遠表面重量在此例中應至少 為10克/手方公尺,較佳為ΐη_ΪΛηη ^ 700 ± , T权佳為1〇 1 0 0 0克/平方公尺範圍,更 方公尺,且最佳為3"5〇克/平方公尺, 而纖維厚度應為0.5-50 dtex範圍,較佳為15_25且更佳 為2-15 dtex,根據圖8之吸收性物件同樣尚包含一吸收體 24及一液體不可穿透背頁23。 根據圖9之實施例與圖8揭示者不同處在於如不織布形式 等之一支撐材料25已經整合在該組合頂頁/獲取層22底側 上,此一支撐材料當然可另外或亦整合至頂頁/獲取層22 的上側’或根據圖9整合至獲取層5,或根據圖7整合至頂 頁 12 根據圖7 - 9之實施例中,如本發明之該結合纖維絲束將 直接碰觸用者皮膚,此例中對材料有高度柔軟度及舒適性 之需求,因為該材料係以連續纖維構成,故無突出尖銳纖 維端來刺激皮膚,但該材料非常柔軟服順,此外’由於在 縱向提供強度之縱連續纖維9及橫向提供強度之結合樣 式,其具有足夠強度及抗磨耗性。
413631 五、發明說明(9) * 如上述,絲束中較佳使用摺縐或捲曲纖維,因其提供額 外之開放且高聳結構,亦可能使用直線與摺縐或彎曲纖維 之一組合3 亦可能在絲束不同部分亦即不同層或區段中,使用不同 類型之纖維或不同厚之纖維,因此,其可能產生所需吸收 型式,亦可能產生不同親水性及/或孔尺寸梯度,超吸收 纖維亦可參雜進絲束中。 獲取時間 已有比較性測試以測量吸收性物件之獲取時間,一方面 為市售輕失禁用品形式之參考用品,另一方面為測試用品 ^ 形式,其中該頂頁及獲取層已經以如本發明之結合絲束替 換,參考用品中之頂頁係為一具有2 3克/平方公尺基重之 卡狀不織布,且獲取層係為一具有68克/平方公尺基重之 針織填料,吸收核心對於參考用品與測試用品皆相同,其 由兩層構成:一混合CT MP (化學熱機械漿)與超吸收物形 式之上層,及一混合化學漿及超吸收物形式之下層β 測試用品中之結合纖維代替了參考用品中由6 . 7 d t e X厚 及7 0克/平方公尺基重聚酯纖維構成之頂頁及獲取層。 測試液體中使用如EP 0,565, 606所述之一合成展液,其( 可由賓州潔柯藥品公司供應,該成份為:氯化鉀2克/升、 硫酸納2克/升、磷酸氫二銨0 . 8 5克/升、磷酸二氫銨0 . 1 5 克/升、氣化鈣0.19克/升、及氯化鎂0.23克/升,該成份 酸驗度為6.0至6.4。 三劑各5 0毫升合成尿液以ί 0分鐘間隔加入,在所有液韹
L:\56\56085.PTD 第15頁 413631 五、發明說明(10) 吸收之前測量所費時間(目視觀察),結果顯示於下表中: 用品 獲取時間1(秒) 獲取時間2(秒) 獲取時間3(秒) 參考 3.65 7.10 11.66 測試 3.35 5.29 6.64 如此測試所示,該測試用品具有一比參考用品更快之獲取 時間,在第二及第三次濕潤時’此差異尤其顯然° 圖10中示意顯示一簡單裝置,其中可容易地示範一如本 : 發明之吸收性物件其優良獲取情形1該裝置包含一對彼此 成銳角排列的腳件形式之架2 5 ’物件1以將在置於用者腿 部間胯部中時摺疊之對應方式加以縱向摺疊,且以摺疊狀 態安置於架2 5上,譬如5 0毫升之測試液體量快速倒在物件 上,一傳統吸收性物件將可能泼漏且無法夠供地吸收所百 液體,另一方靣如本發明之吸收性物件將能夠更快速地吸 收液體,並顯著降低了洩漏之危險。
L:\56\56085.PTD 第16頁 413631 元件符號簡要說明 案號87120079 年月 曰 修正系 ' - ' · ' , X" 五、發明說明(11) 1 失禁防護件 2 液體可穿透頂頁 3 液體不可穿透背頁 4 吸收體 5 液體獲取層 6 黏膠條形式之結件裝置 6’ 褲型膠條 7 較寬端部 7a 前部 7b 背部 8 較窄胯部 9 連續纖維 10 結合樣式 11 一件連續纖維9之層 12 頂頁 13 液體不可穿透背頁 14 吸收體 15 獲取層 16 孔 22 組合之頂頁/獲取層 23 液體不可穿透背頁 24 吸收體 25 支撐材料/架
O:\56\56085.ptc 第17頁 2000. 06.16. 017
Claims (1)
- υο丄 月 曰 申請專利範圍 1. 一種吸收性物件,譬如尿布、尿布褲、失禁防護件、 、傷口包紮或類似物件,其含有一液體可穿透頂頁 ' —液體不可穿透背頁(3 ; 1 3 ; 2 3 )、及排列 A : λ Λ · λ s ^ ....... 桊號87120079 ^生 六 衛生棉 (2 ; 12 ; 22) _ 其間之一吸收體(4 ;14 ; 24),其特徵為: 該物件包含一層連續纖維(9),稱為絲束,其以一 、:合樣式(10)之點、點區或線加以結合,但其中該纖維除 此之外大致未彼此結合。 2. 如申請專利範圍第i項之吸收性物件,其特徵為: 該結合樣式(1 〇 )並非隨意性。 3. 如申請專利範圍第1或2項之吸收性物件,其特徵 該層連續纖維(9 )作為一协妓了百百f 。 ‘ 間施用之液體獲取層⑸…於…⑺與吸收體⑺ 4·如!範圍第3項之吸收性物件,其特徵為: 忒層連續纖維(9)具有至少為1〇克,平方 重,較佳為10 ”1000克/平方八 斤 & 承士 \ 0 凡/十万公尺犯圍’更佳為3 0-7 00券/ 千方公尺且最佳為30-35 0克/平方公尺。 〇克/ 5.如範圍第3項之吸收性物件,其特徵為: (1 6 ),豆供液艚寐抱思“、 頁(^、有至乂 一開口 ”供液體獲取層(5)通過朝向用者暴露。 •如申μ專利鞑圍第】或2項之吸收性物件,其 該層連續纖維(9 )作Α 、寺徵為. 7. 如由择作為一液體可穿透頂頁(12)。 申明專利乾圍苐6項之吸收性版杜甘此 古玄層i車砵铋η、 物件,其特徵為·· 此士 層連 纖維(9)具有至少5克/平方公尺Α & 佳為5- 500克/平方公尺益 * & 十方尺基重,較 〇 , Λ * 華巳圍’更佳為5-200克/平方八σ 8. 如申請專利範圊笼 凡卞万公尺。 其特徵為: 0:^6085^(0 第〗頁 2000. 06·ί6·0ί8 υο丄 月 曰 申請專利範圍 1. 一種吸收性物件,譬如尿布、尿布褲、失禁防護件、 、傷口包紮或類似物件,其含有一液體可穿透頂頁 ' —液體不可穿透背頁(3 ; 1 3 ; 2 3 )、及排列 A : λ Λ · λ s ^ ....... 桊號87120079 ^生 六 衛生棉 (2 ; 12 ; 22) _ 其間之一吸收體(4 ;14 ; 24),其特徵為: 該物件包含一層連續纖維(9),稱為絲束,其以一 、:合樣式(10)之點、點區或線加以結合,但其中該纖維除 此之外大致未彼此結合。 2. 如申請專利範圍第i項之吸收性物件,其特徵為: 該結合樣式(1 〇 )並非隨意性。 3. 如申請專利範圍第1或2項之吸收性物件,其特徵 該層連續纖維(9 )作為一协妓了百百f 。 ‘ 間施用之液體獲取層⑸…於…⑺與吸收體⑺ 4·如!範圍第3項之吸收性物件,其特徵為: 忒層連續纖維(9)具有至少為1〇克,平方 重,較佳為10 ”1000克/平方八 斤 & 承士 \ 0 凡/十万公尺犯圍’更佳為3 0-7 00券/ 千方公尺且最佳為30-35 0克/平方公尺。 〇克/ 5.如範圍第3項之吸收性物件,其特徵為: (1 6 ),豆供液艚寐抱思“、 頁(^、有至乂 一開口 ”供液體獲取層(5)通過朝向用者暴露。 •如申μ專利鞑圍第】或2項之吸收性物件,其 該層連續纖維(9 )作Α 、寺徵為. 7. 如由择作為一液體可穿透頂頁(12)。 申明專利乾圍苐6項之吸收性版杜甘此 古玄層i車砵铋η、 物件,其特徵為·· 此士 層連 纖維(9)具有至少5克/平方公尺Α & 佳為5- 500克/平方公尺益 * & 十方尺基重,較 〇 , Λ * 華巳圍’更佳為5-200克/平方八σ 8. 如申請專利範圊笼 凡卞万公尺。 其特徵為: 0:^6085^(0 第〗頁 2000. 06·ί6·0ί8 413631 ±_Μ ---------案號 87120079 ___ 六、申請專利範圍 ·^一修正 該層連續纖維(9 )作為一整八 (22)。 頁聆液體獲取層 9‘如申請專利範圍第δ項之吸收性物件 較 該層連績纖維(9)具有至少ι〇克/平方^特尺^為:, 佳為1 0-1 000克/平方公尺範圍,更佳為3〇_7〇〇克/平方公 尺’且最佳為30-3 50克/平方公尺。 1 0.如申請專利範圍第1或2項之吸收性物件,其特徵 為· 至少該層中之一部分該連續纖維(9 )加以摺縐或捲 曲。 如中請專利範圍第〗或2項之吸收性物件,其特徵 -¾ · 點、點區、V線樣式(1°)包含跨過該連續纖維(9)的縱向之 12_如申請專利範圍第u 如該物件橫向所男,、吸收性物件,其特徵為: 纖維(9 )之一主要部分沿至^不同結合線彼此重疊,故該 13.如申請專利範^ =其長度一部分結合。 為: 以項之吸收性物件’其特徵 該層連續纖維(9 ) 撐層(25)加以支樓。 如—不織布或一塑膠膜等一支 圍第1或2 之吸收性物件’其特徵 1 4 ·如申凊專利範 為: 該層連續纖維(9 ) 纖維。 s不同纖維及/或不同厚度之O:\56\56085.ptc 2000.06,16. 019 413631 ±_Μ ---------案號 87120079 ___ 六、申請專利範圍 ·^一修正 該層連續纖維(9 )作為一整八 (22)。 頁聆液體獲取層 9‘如申請專利範圍第δ項之吸收性物件 較 該層連績纖維(9)具有至少ι〇克/平方^特尺^為:, 佳為1 0-1 000克/平方公尺範圍,更佳為3〇_7〇〇克/平方公 尺’且最佳為30-3 50克/平方公尺。 1 0.如申請專利範圍第1或2項之吸收性物件,其特徵 為· 至少該層中之一部分該連續纖維(9 )加以摺縐或捲 曲。 如中請專利範圍第〗或2項之吸收性物件,其特徵 -¾ · 點、點區、V線樣式(1°)包含跨過該連續纖維(9)的縱向之 12_如申請專利範圍第u 如該物件橫向所男,、吸收性物件,其特徵為: 纖維(9 )之一主要部分沿至^不同結合線彼此重疊,故該 13.如申請專利範^ =其長度一部分結合。 為: 以項之吸收性物件’其特徵 該層連續纖維(9 ) 撐層(25)加以支樓。 如—不織布或一塑膠膜等一支 圍第1或2 之吸收性物件’其特徵 1 4 ·如申凊專利範 為: 該層連續纖維(9 ) 纖維。 s不同纖維及/或不同厚度之O:\56\56085.ptc 2000.06,16. 019
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SE9704484A SE514391C2 (sv) | 1997-12-03 | 1997-12-03 | Absorberande alster |
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USH1585H (en) * | 1994-06-30 | 1996-08-06 | Ahr; Nicholas A. | Absorbent article having a braided wicking structure |
JP3058572B2 (ja) | 1994-12-13 | 2000-07-04 | ユニ・チャーム株式会社 | 体液吸収性物品 |
US5695486A (en) * | 1995-09-19 | 1997-12-09 | Buckeye Cellulose Corporation | Light-weight, low density absorbent structure and method of making the structure |
JP3564246B2 (ja) * | 1996-11-22 | 2004-09-08 | ユニ・チャーム株式会社 | 使い捨て体液吸収性物品の表面層 |
JP3169341B2 (ja) * | 1996-12-28 | 2001-05-21 | ユニ・チャーム株式会社 | 使い捨て着用吸収性物品 |
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1997
- 1997-12-03 SE SE9704484A patent/SE514391C2/sv not_active IP Right Cessation
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1998
- 1998-10-07 RU RU2000117285/14A patent/RU2204976C2/ru not_active IP Right Cessation
- 1998-10-07 JP JP2000538647A patent/JP2002508218A/ja not_active Withdrawn
- 1998-10-07 EP EP98948043A patent/EP1035820B1/en not_active Expired - Lifetime
- 1998-10-07 CA CA002313046A patent/CA2313046A1/en not_active Abandoned
- 1998-10-07 AU AU94701/98A patent/AU740026B2/en not_active Ceased
- 1998-10-07 WO PCT/SE1998/001808 patent/WO1999030661A1/en not_active Application Discontinuation
- 1998-10-07 PL PL98340878A patent/PL340878A1/xx not_active Application Discontinuation
- 1998-10-07 DK DK98948043T patent/DK1035820T3/da active
- 1998-10-07 AT AT98948043T patent/ATE245014T1/de not_active IP Right Cessation
- 1998-10-07 DE DE69816476T patent/DE69816476T2/de not_active Expired - Lifetime
- 1998-10-07 KR KR1020007006047A patent/KR20010024675A/ko not_active Application Discontinuation
- 1998-12-03 CO CO98072241A patent/CO5070631A1/es unknown
- 1998-12-03 ZA ZA9811076A patent/ZA9811076B/xx unknown
- 1998-12-03 AU AU15813/99A patent/AU739566B2/en not_active Ceased
- 1998-12-03 KR KR1020007006022A patent/KR20010032733A/ko not_active Application Discontinuation
- 1998-12-03 TN TNTNSN98219A patent/TNSN98219A1/fr unknown
- 1998-12-03 DE DE69804847T patent/DE69804847T2/de not_active Expired - Lifetime
- 1998-12-03 MY MYPI98005473A patent/MY133076A/en unknown
- 1998-12-03 TN TNTNSN98217A patent/TNSN98217A1/fr unknown
- 1998-12-03 NZ NZ504737A patent/NZ504737A/xx unknown
- 1998-12-03 ES ES98960144T patent/ES2175829T3/es not_active Expired - Lifetime
- 1998-12-03 ZA ZA9811075A patent/ZA9811075B/xx unknown
- 1998-12-03 JP JP2000522865A patent/JP2001524350A/ja active Pending
- 1998-12-03 GB GB9826657A patent/GB2331937A/en not_active Withdrawn
- 1998-12-03 RU RU2000117283/14A patent/RU2215509C2/ru not_active IP Right Cessation
- 1998-12-03 TW TW087120079A patent/TW413631B/zh not_active IP Right Cessation
- 1998-12-03 AR ARP980106153A patent/AR017799A1/es active IP Right Grant
- 1998-12-03 CA CA002312737A patent/CA2312737C/en not_active Expired - Fee Related
- 1998-12-03 PL PL340905A patent/PL196459B1/pl unknown
- 1998-12-03 PE PE1998001179A patent/PE20000159A1/es not_active Application Discontinuation
- 1998-12-03 AT AT98960144T patent/ATE215803T1/de not_active IP Right Cessation
- 1998-12-03 TR TR2000/01618T patent/TR200001618T2/xx unknown
- 1998-12-03 EP EP98960144A patent/EP1035818B1/en not_active Expired - Lifetime
- 1998-12-03 WO PCT/SE1998/002215 patent/WO1999027876A1/en not_active Application Discontinuation
- 1998-12-03 DK DK98960144T patent/DK1035818T3/da active
- 1998-12-03 CO CO98072235A patent/CO5070630A1/es unknown
- 1998-12-03 ZA ZA9811074A patent/ZA9811074B/xx unknown
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1999
- 1999-06-09 US US09/328,899 patent/US6660902B2/en not_active Expired - Lifetime
- 1999-06-09 US US09/328,455 patent/US6417427B1/en not_active Expired - Lifetime
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