Classifications

• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
  • A61Q15/00—Anti-perspirants or body deodorants
• • 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
• • 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
  • A61F13/472—Sanitary towels, incontinence pads or napkins specially adapted for female use
  • A61F13/47218—Sanitary towels, incontinence pads or napkins specially adapted for female use with a raised crotch region, e.g. hump
• • 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
  • A61F13/472—Sanitary towels, incontinence pads or napkins specially adapted for female use
  • A61F13/47218—Sanitary towels, incontinence pads or napkins specially adapted for female use with a raised crotch region, e.g. hump
  • A61F13/47227—Sanitary towels, incontinence pads or napkins specially adapted for female use with a raised crotch region, e.g. hump for interlabial use
• • 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
  • A61F13/472—Sanitary towels, incontinence pads or napkins specially adapted for female use
  • A61F13/47263—Sanitary towels, incontinence pads or napkins specially adapted for female use with activating means, e.g. elastic, heat or chemical activatable means
• • 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
  • A61F13/474—Sanitary towels, incontinence pads or napkins adjustable
• • 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
  • A61F13/56—Supporting or fastening means
  • A61F13/66—Garments, holders or supports not integral with absorbent pads
  • A61F13/82—Garments, holders or supports not integral with absorbent pads with means for attaching to the body
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K8/00—Cosmetics or similar toiletry preparations
  • A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
  • A61K8/0208—Tissues; Wipes; Patches
• • 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
  • A61L15/58—Adhesives
• • C—CHEMISTRY; METALLURGY
  • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
  • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
  • C09J153/00—Adhesives based on block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Adhesives based on derivatives of such polymers
  • C09J153/02—Vinyl aromatic monomers and conjugated dienes
  • C09J153/025—Vinyl aromatic monomers and conjugated dienes modified
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
  • C08L2666/00—Composition of polymers characterized by a further compound in the blend, being organic macromolecular compounds, natural resins, waxes or and bituminous materials, non-macromolecular organic substances, inorganic substances or characterized by their function in the composition
  • C08L2666/02—Organic macromolecular compounds, natural resins, waxes or and bituminous materials

Definitions

• WO 96/13238 a frequency dependent body adhesive model is disclosed. However, all measurements disclosed, e.g. on page 9, were made at temperatures between -60°C and +120°C and at actual frequencies of 0.1 to 100 rad/s.
• application temperature about 20°C, typical bath room, i.e. storage temperature
• WLF Williams-Landel-Ferry
• This WLF equation is empirical and only valid within certain limits e.g. it cannot be used to extrapolate to temperatures below the glass transition temperature of a polymeric adhesive also the WLF cannot be used on the basis of values obtained below the glass transition temperature.
• the value of the ratio G'37 over G"37 at least for the frequency range 1 to 100 rad/sec can change with increasing frequency, while not necessarily being proportional to the frequency change.
• This ratio of G'37 over G"37 should not change within the frequency range by a factor of more than 3, preferably more than 2, and most preferably should stay constant.
• the preferred body adhesive is at least partially hydrophobic, preferably 60 %, more preferably 80 %, by weight of the adhesive consist of hydrophobic components and most preferably none of the materials in the adhesive are hydrophilic, i.e. it is made totally from hydrophobic components.
• the adhesive covers less than 20 % or even more preferably less than 10 % of the wearer facing surface of the absorbent article.
• the present invention is most beneficially applied in the field of sanitary napkins or pantiliners.
• a sanitary napkin of the present invention comprises a liquid pervious topsheet, a liquid impervious backsheet joined to the topsheet, and an absorbent core intermediate the topsheet and the backsheet.
• the sanitary napkin has two main surfaces, a body contacting or wearer facing surface, and a garment facing or contacting surface.
• the present invention is concerned with the adaptability of the product.
• the degree of adaptability is determined by the selection of the materials for the components of the product as mentioned above, their respective quantity and to which extend they have been treated to provide adaptability. It will be apparent to those skilled in the art that, in order to achieve the adaptability according to the present invention, the selection of kind, quantity and treatment of raw materials has to be balanced with other desired characteristics of the absorbent product such as for example absorbent capacity, absorption speed and surface dryness on the outside of the topsheet during use, and so on. Therefore the following description of typical materials of the main components of the absorbent product will allow to provide a large number of product variants which satisfy the requirements according to the present invention.
• One optional component of the absorbent cores according to the present invention is the primary fluid distribution layer.
• This primary distribution layer typically underlies the topsheet and is in fluid communication therewith.
• the topsheet transfers the acquired menstrual fluid to this primary distribution layer for ultimate distribution to the storage layer. This transfer of fluid through the primary distribution layer occurs not only in the thickness, but also along the length and width directions of the absorbent product.
• a fluid storage layer Positioned in fluid communication with, and typically underlying the primary or secondary distribution layers, is a fluid storage layer comprising certain absorbent gelling materials and/or other absorbent materials, which can form the carrier matrix for the absorbent gelling materials.
• Absorbent gelling materials are usually referred to as “hydrogels,” “superabsorbent” “hydrocolloid” materials.
• Suitable absorbent gelling materials for use herein will most often comprise a substantially water-insoluble, slightly crosslinked, partially neutralized, polymeric gelling material. This material forms a hydrogel upon contact with water.
• Such polymer materials can be prepared from polymerizable, unsaturated, acid- containing monomers. Suitable unsaturated acidic monomers for use in preparing the polymeric absorbent gelling material used in this invention include those listed in U.S. Patent 4,654,039 and reissued as RE 32,649. Preferred monomers include acrylic acid, methacrylic acid, and 2-acrylamido-2-methyl propane sulfonic acid. Acrylic acid itself is especially preferred for preparation of the polymeric gelling material.
• Suitable woven and non woven materials can be comprised of natural fibers (e.g., wood or cotton fibers), synthetic fibers (e.g., polymeric fibers such as polyester, polypropylene, or polyethylene fibers) or from a combination of natural and synthetic fibers or bi-/multi-component fibers.
• natural fibers e.g., wood or cotton fibers
• synthetic fibers e.g., polymeric fibers such as polyester, polypropylene, or polyethylene fibers
• the wearer facing surface of the formed film topsheet can be hydrophilic so as to help liquid to transfer though the topsheet faster than if the body surface was not hydrophilic.
• surfactant is incorporated into the polymeric materials of the formed film topsheet such as is described in PCT- publication WO 93/09741.
• the wearer facing surface of the topsheet can be made hydrophilic by treating it with a surfactant such as is described in U.S. 4,950,254.
• topsheet When referring to the topsheet a multi layer structure or a mono layer structure is contemplated.
• the hybrid topsheet mentioned above is such a multi layer design but other multi layer topsheets such as primary and secondary topsheet designs are also considered.
• the backsheet also provides breathability to the absorbent article by being at least water vapour permeable, preferably air permeable, however, without compromising the main function of the backsheet.
• the backsheet can be a laminate material e.g. of a combination of microporous film, non-woven material, and/or apertured formed film. Breathability if desired can be limited to the periphery of the backsheet or it can be across the whole backsheet.
• Adaptability incompasses the characteristics of contractability, extensibility, and combinations thereof. Adaptability usually refers to the ability to adapt in the size in one or both directions of a sanitary napkin.
• Adaptability according to the present invention can be provided by creating a series of corrugations or pleats in the direction perpendicular to the direction in which the product is desired to be adaptable.
• a thin sanitary article having corrugations or pleats in longitudinal direction will provide the ability to be stretched in transverse direction in order to accommodate a crotch width change of the article upon application of the article or during use.
• These corrugations or pleats can also provide the ability to enlarge or reduce the width of the article in order to result in the usual wearing position for wearers of differing crotch width.
• the ability to adapt to the desired extend can be provided in longitudinal or transverse direction. It can be employed to provide synergistic effects together with elastically extensible materials in the construction of the absorbent article. It is of course also possible to use inherent material adaptability with the structural adaptability provided by corrugations or pleats.
• the percent variation of the viscous modulus G"37 is not greater than 10000 Pa, preferably not greater than 5000 Pa, most preferably not greater than 1000 Pa.
• a crosslinking agent can be present preferably in quantities up to 5 % by weight.
• Chemical crosslinking can be formed also by mutual neutralisation of polymers having different functionalities as in the reaction between acid polyacrylics and polysaccharides.

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• Health & Medical Sciences (AREA)
• Epidemiology (AREA)
• Life Sciences & Earth Sciences (AREA)
• Public Health (AREA)
• Veterinary Medicine (AREA)
• Animal Behavior & Ethology (AREA)
• General Health & Medical Sciences (AREA)
• Engineering & Computer Science (AREA)
• Biomedical Technology (AREA)
• Vascular Medicine (AREA)
• Heart & Thoracic Surgery (AREA)
• Chemical & Material Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Organic Chemistry (AREA)
• Hematology (AREA)
• Materials Engineering (AREA)
• Birds (AREA)
• Orthopedics, Nursing, And Contraception (AREA)
• Absorbent Articles And Supports Therefor (AREA)
• Adhesives Or Adhesive Processes (AREA)
• Materials For Medical Uses (AREA)

Priority Applications (1)

Applications Claiming Priority (6)

Publications (1)

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Family Applications (1)

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Family Cites Families (11)

• 1997
  • 1997-12-22 AU AU57089/98A patent/AU5708998A/en not_active Abandoned
  • 1997-12-22 CA CA002275575A patent/CA2275575A1/en not_active Abandoned
  • 1997-12-22 KR KR1019997005696A patent/KR20000069659A/ko not_active Application Discontinuation
  • 1997-12-22 EP EP97953315A patent/EP1006974A1/de not_active Withdrawn
  • 1997-12-22 BR BR9714836-9A patent/BR9714836A/pt not_active Application Discontinuation
  • 1997-12-22 WO PCT/US1997/023452 patent/WO1998027910A1/en not_active Application Discontinuation
  • 1997-12-22 JP JP10528949A patent/JP2000505698A/ja active Pending

Non-Patent Citations (1)

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