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BR9815687A - Absorbent article with a breathable microporous film - Google Patents

Absorbent article with a breathable microporous film

Info

Publication number
BR9815687A
BR9815687A BR9815687-0A BR9815687A BR9815687A BR 9815687 A BR9815687 A BR 9815687A BR 9815687 A BR9815687 A BR 9815687A BR 9815687 A BR9815687 A BR 9815687A
Authority
BR
Brazil
Prior art keywords
microporous film
breathable microporous
composite sheet
absorbent article
strain
Prior art date
Application number
BR9815687-0A
Other languages
Portuguese (pt)
Inventor
John Glasgow Burns Jr
Chiun-Hsien Chang
Kazushige Kishida
Guido Bonelli
Tsunetoshi Miura
Original Assignee
Procter & Gamble
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
Priority claimed from PCT/US1998/004651 external-priority patent/WO1999045873A1/en
Priority claimed from PCT/US1998/004650 external-priority patent/WO1999045872A1/en
Application filed by Procter & Gamble filed Critical Procter & Gamble
Priority claimed from PCT/US1998/023029 external-priority patent/WO1999045871A1/en
Publication of BR9815687A publication Critical patent/BR9815687A/en

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 of the pads
    • 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
    • A61F13/51466—Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by its properties being stretchable or elastomeric providing stretchability without the use of elastic material
    • 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
    • A61F13/45—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 shape
    • A61F13/47—Sanitary towels, incontinence pads or napkins
    • A61F13/476—Sanitary towels, incontinence pads or napkins characterised by encircling the crotch region of the undergarment, e.g. with flaps
    • 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 of the pads
    • 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
    • A61F13/51462—Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by its properties being air-pervious or breathable being defined by a value or parameter

Landscapes

  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Dermatology (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Laminated Bodies (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)

Abstract

An absorbent article with flaps having extensibility is disclosed. The absorbent article comprises a topsheet, a backsheet and an absorbent core therebetween. The backsheet comprises a breathable microporous film. The breathable microporous film is made by stretching a mixture of a thermoplastic resin and inorganic fillers at least in one direction. The flaps comprise a composite sheet including a flap topsheet and an extension of the breathable microporous film. At least a part of the flaps is imparted a predetermined extensibility by being subjected to a plastic strain to obtain the predetermined extensibility such that Z number specified by equation (I) is 3.0 or above, wherein MS: average composite sheet material strain at break; AS: average applied strain to the composite sheet to obtain the predetermined extensibility; N: neck down prevention coefficient, sigma MS: standard deviation of composite sheet material strain at break; sigma AS: standard deviation of applied strain.
BR9815687-0A 1998-03-10 1998-10-29 Absorbent article with a breathable microporous film BR9815687A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
PCT/US1998/004673 WO1999045874A1 (en) 1998-03-10 1998-03-10 Absorbent article with extensible flaps comprising microporous film
PCT/US1998/004651 WO1999045873A1 (en) 1998-03-10 1998-03-10 Absorbent article with flaps comprising microporous film having extensibility
PCT/US1998/004650 WO1999045872A1 (en) 1998-03-10 1998-03-10 Absorbent article with extensible flaps comprising microporous film
PCT/US1998/023029 WO1999045871A1 (en) 1998-03-10 1998-10-29 Absorbent article comprising microporous film

Publications (1)

Publication Number Publication Date
BR9815687A true BR9815687A (en) 2000-12-12

Family

ID=22266556

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9815687-0A BR9815687A (en) 1998-03-10 1998-10-29 Absorbent article with a breathable microporous film

Country Status (4)

Country Link
AT (1) ATE235206T1 (en)
AU (1) AU6548398A (en)
BR (1) BR9815687A (en)
WO (1) WO1999045874A1 (en)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4153751A (en) 1975-03-31 1979-05-08 Biax-Fiberfilm Corporation Process for stretching an impregnated film of material and the microporous product produced thereby
US4116892A (en) 1975-03-31 1978-09-26 Biax-Fiberfilm Corporation Process for stretching incremental portions of an orientable thermoplastic substrate and product thereof
US4923650A (en) 1988-07-27 1990-05-08 Hercules Incorporated Breathable microporous film and methods for making it
WO1995003022A2 (en) * 1993-07-22 1995-02-02 The Procter & Gamble Company Absorbent articles having overlapping undergarment covering components that automatically wrap the sides of undergarments
ATE175100T1 (en) * 1993-09-20 1999-01-15 Procter & Gamble ABSORBENT ARTICLES WITH LINEN PROTECTION ELEMENTS WITH STRUCTURED, STRETCHY REGIONS
EP0710470B1 (en) 1994-10-20 2000-03-22 The Procter & Gamble Company High speed mechanical straining process to provide extensibility to laminates for use in disposable absorbent articles
IL123964A (en) 1995-10-06 2002-08-14 Procter & Gamble Absorbent article having flaps with a deformed hinge and zones of extensibility

Also Published As

Publication number Publication date
AU6548398A (en) 1999-09-27
ATE235206T1 (en) 2003-04-15
WO1999045874A1 (en) 1999-09-16

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Legal Events

Date Code Title Description
FB36 Technical and formal requirements: requirement - article 36 of industrial property law
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]
B21F Lapse acc. art. 78, item iv - on non-payment of the annual fees in time

Free format text: REFERENTE A 18A ANUIDADE.

B24J Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12)

Free format text: EM VIRTUDE DA EXTINCAO PUBLICADA NA RPI 2385 DE 20-09-2016 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDA A EXTINCAO DA PATENTE E SEUS CERTIFICADOS, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013.