BR9707183A - Tela de reforço em um artigo absorvente - Google Patents

Tela de reforço em um artigo absorvente

Info

Publication number
BR9707183A
BR9707183A BR9707183A BR9707183A BR9707183A BR 9707183 A BR9707183 A BR 9707183A BR 9707183 A BR9707183 A BR 9707183A BR 9707183 A BR9707183 A BR 9707183A BR 9707183 A BR9707183 A BR 9707183A
Authority
BR
Brazil
Prior art keywords
absorbent article
reinforcement fabric
reinforcement
fabric
absorbent
Prior art date
Application number
BR9707183A
Other languages
English (en)
Inventor
Ching-Yun Morris Yang
Mordechai Turi
William Chien-Chung Hsu
Original Assignee
Mcneil Ppc Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=24360874&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=BR9707183(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Mcneil Ppc Inc filed Critical Mcneil Ppc Inc
Publication of BR9707183A publication Critical patent/BR9707183A/pt

Links

Classifications

    • 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
    • A61F13/51—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 outer layers
    • A61F13/514—Backsheet, i.e. the impermeable cover or layer furthest from the skin
    • A61F13/51456—Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by its properties
    • A61F13/51464—Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by its properties being stretchable or elastomeric
    • 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
    • A61F13/15577—Apparatus or processes for manufacturing
    • A61F13/15707—Mechanical treatment, e.g. notching, twisting, compressing, shaping
    • A61F13/15731—Treating webs, e.g. for giving them a fibrelike appearance, e.g. by embossing
    • 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
    • A61F13/51—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 outer layers
    • A61F13/514—Backsheet, i.e. the impermeable cover or layer furthest from the skin
    • A61F13/51456—Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by its properties
    • A61F13/51458—Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by its properties being air-pervious or breathable
    • A61F13/5146—Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by its properties being air-pervious or breathable having apertures of perforations
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24273—Structurally defined web or sheet [e.g., overall dimension, etc.] including aperture
    • Y10T428/24281—Struck out portion type
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24273—Structurally defined web or sheet [e.g., overall dimension, etc.] including aperture
    • Y10T428/24322—Composite web or sheet
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/249921—Web or sheet containing structurally defined element or component
    • Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
    • Y10T428/249978—Voids specified as micro

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Epidemiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Dermatology (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Laminated Bodies (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
BR9707183A 1996-01-24 1997-01-08 Tela de reforço em um artigo absorvente BR9707183A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/590,099 US5681301A (en) 1996-01-24 1996-01-24 Backing web in an absorbent article
PCT/US1997/000271 WO1997026850A1 (en) 1996-01-24 1997-01-08 Backing web in an absorbent article

Publications (1)

Publication Number Publication Date
BR9707183A true BR9707183A (pt) 1999-03-23

Family

ID=24360874

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9707183A BR9707183A (pt) 1996-01-24 1997-01-08 Tela de reforço em um artigo absorvente

Country Status (14)

Country Link
US (1) US5681301A (pt)
EP (1) EP0879041B1 (pt)
JP (1) JP2000504245A (pt)
CN (1) CN1172642C (pt)
AR (1) AR005534A1 (pt)
AU (1) AU1745797A (pt)
BR (1) BR9707183A (pt)
CA (1) CA2242858C (pt)
CO (1) CO4850615A1 (pt)
DE (1) DE69722377T2 (pt)
RU (1) RU2175538C2 (pt)
UY (1) UY24447A1 (pt)
WO (1) WO1997026850A1 (pt)
ZA (1) ZA97575B (pt)

Families Citing this family (47)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5733628A (en) 1996-10-10 1998-03-31 Tredegar Industries, Inc. Breathable elastic polymeric film laminates
US7087287B2 (en) * 1997-02-21 2006-08-08 The Procter & Gamble Company Tear resistant porous extensible web
WO1999009090A1 (en) * 1997-08-21 1999-02-25 Tredegar Corporation Perforated contoured film for use in a bandage
EP0922444A1 (en) * 1997-12-11 1999-06-16 The Procter & Gamble Company The use of a breathable absorbent article to provide a clean and dry topsheet
EP0934735A1 (en) * 1998-02-04 1999-08-11 The Procter & Gamble Company Absorbent article with breathable dual layer backsheet comprising one layer with slanted capillary apertures
EP0934736A1 (en) * 1998-02-04 1999-08-11 The Procter & Gamble Company Absorbent article with breathable backsheet comprising slanted capillary apertures
AU1206399A (en) * 1998-03-10 1999-09-27 Procter & Gamble Company, The Absorbent article comprising microporous film
AU6547798A (en) * 1998-03-10 1999-09-27 Procter & Gamble Company, The Absorbent article with flaps comprising microporous film having extensibility
US6264641B1 (en) 1998-05-07 2001-07-24 Kimberly-Clark Worldwide, Inc. Expandable cover garment
DE19830864A1 (de) * 1998-07-10 2000-01-13 Beiersdorf Ag Verwendung eines metallocen-Polyetphylen-Vliesstoffes als Trägermaterial
AU9661198A (en) * 1998-09-04 2000-03-27 Procter & Gamble Company, The Method of manufacturing microporous film having zone of deformation
US6274042B1 (en) * 1998-10-29 2001-08-14 Voith Sulzer Papiertechnik Gmbh Semipermeable membrane for pressing apparatus
AU760102B2 (en) * 1998-11-19 2003-05-08 Kimberly-Clark Worldwide, Inc. Absorbent article with expandable cover
US6413247B1 (en) 1999-02-03 2002-07-02 The Procter & Gamble Company Absorbent article with breathable dual layer backsheet comprising one layer with slanted capillary apertures
JP3510136B2 (ja) * 1999-03-03 2004-03-22 ユニ・チャーム株式会社 体液処理用品の不透液性裏面シート
EP1040803A1 (en) * 1999-04-01 2000-10-04 The Procter & Gamble Company Resilient, three dimensional polymeric film comprising open and closed capillaries
DE60005937T2 (de) * 1999-04-01 2004-07-29 The Procter & Gamble Company, Cincinnati Elastische dreidimensionale folie mit offenen und geschlossenen kapillaren, sowie absorbierender artikel mit verbesserter äusserer schicht mit dieser folie
US6627791B1 (en) 1999-04-01 2003-09-30 The Procter & Gamble Company Resilient, three dimensional polymeric film comprising open and closed capillaries, and absorbent article with improved backsheet comprising the film
EP1040804A1 (en) * 1999-04-01 2000-10-04 The Procter & Gamble Company Absorbent article with improved backsheet comprising open and closed capillaries
JP3522594B2 (ja) * 1999-07-08 2004-04-26 花王株式会社 吸収性物品
AUPR158300A0 (en) * 2000-11-20 2000-12-14 Amcor Packaging (Australia) Pty Ltd Method for forming perforations in film
US8033983B2 (en) 2001-03-09 2011-10-11 Boston Scientific Scimed, Inc. Medical implant
US8617048B2 (en) 2001-03-09 2013-12-31 Boston Scientific Scimed, Inc. System for implanting an implant and method thereof
CA2444439C (en) * 2001-05-30 2007-07-03 The Procter & Gamble Company Disposable absorbent articles contained in package having window
US20030124308A1 (en) * 2001-11-29 2003-07-03 Cree James W. Highly breathable water resistant composite
US6601705B2 (en) * 2001-12-07 2003-08-05 The Procter & Gamble Company Package containing a window and performance characteristic indicator
NL1023005C2 (nl) * 2002-11-12 2004-05-13 Stork Prints Bv Zeefmateriaal, werkwijze voor de vervaardiging en toepassingen daarvan.
EP1581148B1 (en) 2002-12-17 2010-02-17 Boston Scientific Limited Spacer for sling delivery system
US7655176B2 (en) * 2002-12-20 2010-02-02 The Procter & Gamble Company Method of making a polymeric web exhibiting a soft and silky tactile impression
US6852475B2 (en) * 2002-12-20 2005-02-08 The Procter & Gamble Company Method for making a forming structure
US7361138B2 (en) 2003-07-31 2008-04-22 Scimed Life Systems, Inc. Bioabsorbable casing for surgical sling assembly
US11690746B2 (en) 2004-04-02 2023-07-04 Applied Biokinetics Llc Pre-cut adhesive supports for anatomical support, pain reduction, or therapeutic treatment
US9579238B2 (en) 2005-02-17 2017-02-28 The Procter & Gamble Company Sanitary napkins capable of taking complex three-dimensional shape in use
US8211078B2 (en) 2005-02-17 2012-07-03 The Procter And Gamble Company Sanitary napkins capable of taking complex three-dimensional shape in use
EP2110107B1 (en) * 2005-06-29 2012-11-14 The Procter & Gamble Company Disposable absorbent article containing an unapertured skinless elastomer layer
US8079992B2 (en) * 2006-06-21 2011-12-20 Mcneil-Ppc, Inc. Stretchable absorbent article
CN101720338A (zh) 2007-06-05 2010-06-02 宝洁公司 包括表现出低胶烧穿的低基重膜的吸收制品
US8833216B2 (en) * 2009-08-10 2014-09-16 Amcor Limited Method and an apparatus for perforating polymeric film
USD694892S1 (en) 2011-02-28 2013-12-03 Johnson & Johnson Consumer Companies, Inc. Adhesive bandage with decorated pad
USD697216S1 (en) 2011-02-28 2014-01-07 Johnson & Johnson Consumer Companies, Inc. Adhesive bandage with decorated pad
US20120220973A1 (en) * 2011-02-28 2012-08-30 Jennifer Wing-Yee Chan Adhesive bandage
KR102272976B1 (ko) 2013-12-12 2021-07-06 쓰리엠 이노베이티브 프로퍼티즈 캄파니 중합체 다층 필름을 제조하는 방법
EP3386700B8 (en) * 2015-12-11 2021-05-05 Fitesa Film Products LLC Hydro-formed film with three-dimensional micro-apertures
JP7058110B2 (ja) 2017-11-21 2022-04-21 スリーエム イノベイティブ プロパティズ カンパニー 伸縮材、伸縮材の製造方法、伸縮性部材、及び衣料製品
USD918398S1 (en) 2018-12-10 2021-05-04 Johnson & Johnson Consumer Inc. Adhesive bandage with decorated pad
USD913507S1 (en) 2018-12-10 2021-03-16 Johnson & Johnson Consumer Inc. Adhesive bandage with decorated pad
JP7057299B2 (ja) * 2019-02-21 2022-04-19 ニチバン株式会社 伸縮性パッドを用いた医療用貼付材

Family Cites Families (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4045833A (en) * 1973-08-06 1977-09-06 Johnson & Johnson Absorbent bed pad
US3881489A (en) * 1973-08-20 1975-05-06 Procter & Gamble Breathable, liquid inpervious backsheet for absorptive devices
US4069822A (en) * 1975-10-30 1978-01-24 The Procter & Gamble Company Porous fibrous web to a substrate and articles therefrom
US4388075A (en) * 1977-12-20 1983-06-14 Johnson & Johnson Baby Products Company Disposable diaper with wide elastic gathering means for improved comfort
US4272473A (en) * 1978-12-07 1981-06-09 The Procter & Gamble Company Method for embossing and perforating a running ribbon of thermoplastic film on a metallic pattern roll
US4341216A (en) * 1981-02-27 1982-07-27 The Procter & Gamble Company Breathable backsheet for disposable diapers
US4366814A (en) * 1981-04-06 1983-01-04 Minnesota Mining And Manufacturing Company Elastic bandage material
DE3306843A1 (de) * 1982-03-02 1983-09-15 Kao Corp., Tokyo Absorbierendes erzeugnis
DE3669996D1 (de) * 1985-01-30 1990-05-10 Kao Corp Absorptionsartikel.
US4591523A (en) * 1985-05-31 1986-05-27 The Procter & Gamble Company Apertured macroscopically expanded three-dimensional polymeric web exhibiting breatheability and resistance to fluid transmission
US4609518A (en) * 1985-05-31 1986-09-02 The Procter & Gamble Company Multi-phase process for debossing and perforating a polymeric web to coincide with the image of one or more three-dimensional forming structures
US4778664A (en) * 1986-03-10 1988-10-18 The Dow Chemical Company Process for the removal of NO from fluid streams using a water soluble polymeric chelate of a polyvalent metal
US4728325A (en) * 1986-04-03 1988-03-01 Exxon Chemical Patents Inc. Diaper backsheet
CA1293095C (en) * 1986-12-31 1991-12-17 Kimberly-Clark Corporation Disposable absorbent garment having elastic outer cover and integrated absorbent insert structure
US4846164A (en) * 1987-08-07 1989-07-11 Martz Joel D Vapor permeable dressing
US4772444A (en) * 1987-08-24 1988-09-20 The Procter & Gamble Company Method and apparatus for making microbubbled and/or microapertured polymeric webs using hydraulic pressure
EP0305123B1 (en) * 1987-08-24 1993-05-05 The Procter & Gamble Company Substantially fluid-impervious microbubbled polymeric web and method and apparatus for making it
JPH0764325B2 (ja) * 1989-04-14 1995-07-12 株式会社川島製作所 横型製袋充填包装機のボックスモーション型加熱溶断封緘装置用ベルトコンベア
SE464109B (sv) * 1989-07-06 1991-03-11 Moelnlycke Ab Elastiskt material och absorberande engaangsartikel framstaelld daerav
US5221276A (en) * 1989-09-19 1993-06-22 The Procter & Gamble Company Absorbent article having a textured fastener
US5098764A (en) * 1990-03-12 1992-03-24 Chicopee Non-woven fabric and method and apparatus for making the same
US5244711A (en) * 1990-03-12 1993-09-14 Mcneil-Ppc, Inc. Apertured non-woven fabric
US5158819A (en) * 1990-06-29 1992-10-27 The Procter & Gamble Company Polymeric web exhibiting a soft, silky, cloth-like tactile impression and including a contrasting visually discernible pattern having an embossed appearance on at least one surface thereof
CA2092197C (en) * 1991-07-23 1999-07-20 Theresa Louise Johnson Curved, shaped absorbent article
US5269981A (en) * 1991-09-30 1993-12-14 Kimberly-Clark Corporation Process for hydrosonically microaperturing
EP0565718B1 (de) * 1991-11-06 1997-06-25 Uni-Charm Company Limited Flexible kunststoffolie mit rippenstruktur
DK0626838T3 (da) * 1992-02-18 2000-04-17 Mcneil Ppc Inc Tekstillignende, med åbninger forsynede plastfilm
CA2139499C (en) * 1992-07-22 2004-11-23 Michael D. Delmore Absorbent, self-adhering elastic bandage
US5366782A (en) * 1992-08-25 1994-11-22 The Procter & Gamble Company Polymeric web having deformed sections which provide a substantially increased elasticity to the web
US5322728A (en) * 1992-11-24 1994-06-21 Exxon Chemical Patents, Inc. Fibers of polyolefin polymers
US5498582A (en) * 1993-12-06 1996-03-12 Mobil Oil Corporation Supported metallocene catalysts for the production of polyolefins
US5498581A (en) * 1994-06-01 1996-03-12 Phillips Petroleum Company Method for making and using a supported metallocene catalyst system

Also Published As

Publication number Publication date
CA2242858A1 (en) 1997-07-31
UY24447A1 (es) 1997-05-16
JP2000504245A (ja) 2000-04-11
AR005534A1 (es) 1999-06-23
CN1172642C (zh) 2004-10-27
CA2242858C (en) 2006-03-14
EP0879041B1 (en) 2003-05-28
RU2175538C2 (ru) 2001-11-10
EP0879041A1 (en) 1998-11-25
US5681301A (en) 1997-10-28
AU1745797A (en) 1997-08-20
WO1997026850A1 (en) 1997-07-31
CN1213959A (zh) 1999-04-14
CO4850615A1 (es) 1999-10-26
DE69722377T2 (de) 2004-04-08
ZA97575B (en) 1998-07-23
DE69722377D1 (de) 2003-07-03

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Legal Events

Date Code Title Description
FB36 Technical and formal requirements: requirement - article 36 of industrial property law
FB36 Technical and formal requirements: requirement - article 36 of industrial property law
FB36 Technical and formal requirements: requirement - article 36 of industrial property law
FF Decision: intention to grant
FG9A Patent or certificate of addition granted
B21A Expiry acc. art. 78, item i of ipl- expiry of the term of protection