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1. WO1996002215 - PERFORATED THERMOPLASTIC SHEET

Publication Number WO/1996/002215
Publication Date 01.02.1996
International Application No. PCT/FR1995/000915
International Filing Date 07.07.1995
IPC
A61F 13/00 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
FFILTERS 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
13Bandages or dressings; Absorbent pads
A61F 13/15 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
FFILTERS 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
13Bandages or dressings; Absorbent pads
15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
CPC
A61F 13/15731
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
FFILTERS 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
13Bandages or dressings
15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body
15577Apparatus or processes for manufacturing
15707Mechanical treatment, e.g. notching, twisting, compressing, shaping
15731Treating webs, e.g. for giving them a fibrelike appearance, e.g. by embossing
A61F 13/514
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
FFILTERS 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
13Bandages or dressings
15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body
51characterised by the outer layers
514Backsheet, i.e. the impermeable cover or layer furthest from the skin
Y10T 428/24273
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
10TECHNICAL SUBJECTS COVERED BY FORMER USPC
TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
428Stock material or miscellaneous articles
24Structurally defined web or sheet [e.g., overall dimension, etc.]
24273including aperture
Y10T 428/24281
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
10TECHNICAL SUBJECTS COVERED BY FORMER USPC
TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
428Stock material or miscellaneous articles
24Structurally defined web or sheet [e.g., overall dimension, etc.]
24273including aperture
24281Struck out portion type
Y10T 428/24298
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
10TECHNICAL SUBJECTS COVERED BY FORMER USPC
TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
428Stock material or miscellaneous articles
24Structurally defined web or sheet [e.g., overall dimension, etc.]
24273including aperture
24298Noncircular aperture [e.g., slit, diamond, rectangular, etc.]
Y10T 428/24322
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
10TECHNICAL SUBJECTS COVERED BY FORMER USPC
TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
428Stock material or miscellaneous articles
24Structurally defined web or sheet [e.g., overall dimension, etc.]
24273including aperture
24322Composite web or sheet
Applicants
  • GUIAL S.A. [FR/FR]; 98, avenue Marceau F-59130 Lambersart, FR (AllExceptUS)
  • BEZIER, Bernard [FR/FR]; FR (UsOnly)
Inventors
  • BEZIER, Bernard; FR
Agents
  • HENNION, Jean-Claude; Cabinet Beau de Loménie 37, rue du Vieux-Faubourg F-59800 Lille, FR
Priority Data
94/0900915.07.1994FR
94/1009211.08.1994FR
Publication Language French (FR)
Filing Language French (FR)
Designated States
Title
(EN) PERFORATED THERMOPLASTIC SHEET
(FR) FEUILLE THERMOPLASTIQUE PERFOREE
Abstract
(EN)
A perforated sheet, particularly for sanitary articles, made of a liquid-tight material and comprising a multiplicity of pits (6) each having a base (4) lying in the plane of the outer surface, an apex and an inner wall sloping upwards from the base (4) to the apex. The outline of the base (4) includes at least one point of discontinuity (27, 28, 29, 30) so that, as it extends around the edge of each pit, the inner wall has a non-uniform slope with angles of slope, relative to a line perpendicular to the plane of the outer sheet surface, that vary between positive and negative values, and are negative at least at the point of discontinuity. The outline of the base is preferably defined by a number of partially overlapping curved geometrical shapes, particularly circles and ellipses, and the point of discontinuity corresponds to where these shapes meet. A composite planar material comprising said sheet coated at least on its outer surface with thermoplastic fibres bonded to one another and to the sheet is also disclosed.
(FR)
La feuille perforée notamment pour articles d'hygiène, réalisée en un matériau imperméable aux liquides comporte une multiplicité de cratères (6) ayant chacun une base (4) dans le plan de la face extérieure, un sommet et une paroi interne inclinée depuis la base (4) jusqu'au sommet. La base (4) a une forme périphérique qui comporte au moins une zone de discontinuité (27, 28, 29, 30) telle qu'en parcourant le pourtour de chaque cratère, la paroi interne présente une inclinaison non uniforme avec des angles d'inclinaison par rapport à la perpendiculaire au plan de la face extérieur de la feuille qui varient entre des valeurs positives et des valeurs négatives, cet angle étant négatif au moins dans la zone de discontinuité. Préférentiellement la forme périphérique de la base résulte de la superposition partielle de plusieurs formes géométriques, courbes notamment cercle et ellipse, et la zone de discontinuité correspond à la jonction des formes superposées. Le matériau plan composite comporte ladite feuille recouverte de fibres thermoplastiques sur au moins la face extérieure, liées entre elles et la feuille.
Also published as
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