EP1641362A1 - Watertight outsole for footwear, which is permeable to water vapour - Google Patents

Watertight outsole for footwear, which is permeable to water vapour

Info

Publication number
EP1641362A1
EP1641362A1 EP04740105A EP04740105A EP1641362A1 EP 1641362 A1 EP1641362 A1 EP 1641362A1 EP 04740105 A EP04740105 A EP 04740105A EP 04740105 A EP04740105 A EP 04740105A EP 1641362 A1 EP1641362 A1 EP 1641362A1
Authority
EP
European Patent Office
Prior art keywords
outsole
cover layer
openings
permeable
polyether
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
EP04740105A
Other languages
German (de)
French (fr)
Other versions
EP1641362B1 (en
Inventor
Liviu-Mihai Pavelescu
Paul Edmund Raith
Karsten Friedrich Keidel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sympatex Technologies GmbH
Original Assignee
Sympatex Technologies GmbH
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
Application filed by Sympatex Technologies GmbH filed Critical Sympatex Technologies GmbH
Publication of EP1641362A1 publication Critical patent/EP1641362A1/en
Application granted granted Critical
Publication of EP1641362B1 publication Critical patent/EP1641362B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B7/00—Footwear with health or hygienic arrangements
    • A43B7/06—Footwear with health or hygienic arrangements ventilated
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00—Soles; Sole-and-heel integral units
    • A43B13/02—Soles; Sole-and-heel integral units characterised by the material
    • A43B13/04—Plastics, rubber or vulcanised fibre
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B7/00—Footwear with health or hygienic arrangements
    • A43B7/12—Special watertight footwear

Definitions

  • the present invention relates to a water vapor permeable and waterproof outsole for footwear.
  • EP 0 959 704 B1 describes a two-layer outsole with an elastic water-vapor-permeable inner layer and an outer layer, which covers less than 70% of the inner layer.
  • the inner layer is preferably microporous, which ensures unimpeded water vapor transport.
  • Sintered plastic or a felt, fleece, woven or knitted fabric made of plastic is preferably used as the material for the inner layer, polyester, polypropylene or polyethylene being used in particular as the plastic.
  • the microstructure of the inner layer is designed in such a way that it additionally has hydrophobic properties and is therefore waterproof. This is achieved by a corresponding production of the sintered plastic, e.g. by processing sintered polyethylene in the high or ultra high molecular state.
  • the outsole described in EP 0 959 704 B1 has the following disadvantages:
  • the outer layer of the outsole is made of abrasion-resistant plastics, such as polyurethane or polyvinyl chloride. However, these plastics are impermeable to water vapor.
  • the outer layer In order to additionally make the outsole permeable to water vapor, the outer layer must be opened in accordance with EP 0 959 704 B1 and the openings already on the side facing the foot must be install the water vapor permeable inner layer.
  • EP 0 959 704 B1 enforces a two-layer construction of the outsole, which results in a production outlay which is greater than in the case of a single-layer sole.
  • the present invention has for its object to provide an outsole, whereby the disadvantages described above are at least reduced.
  • a water vapor permeable and waterproof outsole for footwear the outsole being a mixture of a) a polymer selected from the group consisting of thermoplastic rubbers, gums, polyvinyl chlorides, polyurethanes, thermoplastic polyurethanes, ethyl vinyl acetates or latices and b) based on the volume the outsole 10 to 80 vol .-% of a copolymer selected from the group of hydrophilic polyether esters, polyether amides or polyether urethanes.
  • the outsole according to the invention although only constructed in one layer - is at the same time sufficiently abrasion-resistant, waterproof and, to a greater extent, water vapor permeable than an outsole which consists only of one of the polymers mentioned under a).
  • the outsole according to the invention does not require a second outer layer, the entire outer surface of the outsole facing the street is available for the discharge of the water vapor formed between the tread of the foot and the inner surface of the sole to the street side.
  • the outer edge of the outsole according to the invention also participates in the transport of water vapor which forms between the tread of the foot and the inner surface of the sole according to the invention.
  • the copolymer selected from the group of hydrophilic polyether esters, polyether amides or polyether urethanes is non-porous. Therefore, there are no capillary forces that could suck water containing tenside from the street side through the sole into the tread of the foot. As a result, water puddles containing surfactants cannot affect the water resistance of the outsole according to the invention. This eliminates the need to ensure the watertightness of the outsole according to the invention by a water vapor permeable and waterproof membrane to be applied to the foot side of the sole.
  • the outsole according to the invention comprises 10 to 80% by volume, preferably 10 to 70% by volume and particularly preferably 10 to 50% by volume of a copolymer selected from the group of the hydrophilic polyether esters, polyether amides or polyether urethanes.
  • a copolymer portion is preferred which is based on the above-mentioned upper limit, whereas Before the sole according to the invention, in which a long service life is of primary importance, a copolymer portion is preferred which is based on the above-mentioned lower limit.
  • the outsole according to the invention has openings on the outside which are closed to the inside of the outsole with sole material, the inside being designed as a closed cover layer.
  • the thickness of the cover layer, which closes the outsole on the inside should on the one hand be as small as possible to enable the highest possible water vapor permeability, but on the other hand must not be too small so that the outsole according to the invention has sufficient resistance to penetrating material, e.g. guaranteed in the form of stones, broken glass or nails.
  • the thickness of the cover layer, which closes the outsole to the inside must therefore be greater than zero mm.
  • the percentage of the cross-sectional area of the openings towards the cover layer relative to the cover layer can be selected within a wide range.
  • the outsole can be coated on the outside with a particularly abrasion-resistant material, which likewise leaves the above-mentioned openings free.
  • FIG. 2 shows the detail (B) of an outsole according to the invention from FIG. 1
  • FIG. 2a is a plan view of the inside A of section B of FIG. 2nd
  • Fig. 3 shows the detail (B) of another outsole according to the invention
  • FIG. 3a shows a top view of the inside A of the detail (B) from FIG. 3
  • Fig. 4 shows the detail (B) of another outsole according to the invention
  • FIG. 4a is a plan view of the inside A of the section (B) of FIG. 4th
  • FIG. 2 shows an enlargement of section B of the outsole 1 according to the invention from FIG. 1 with openings 3 to the outside, which are closed to the inside A of the outsole 1 with sole material 2, the inside A being designed as a closed cover layer.
  • the openings have the shape of a cone cut off at its tip, the diameter of which increases from the inside to the street side.
  • the thickness d of the cover layer, which closes the outsole 1 to the inside, should on the one hand be as small as possible in order to allow the highest possible water vapor permeability, but on the other hand must not be too small so that the outsole 1 according to the invention has sufficient resistance to penetrating material under conditions of use, eg in the form of stones, broken glass or nails.
  • the thickness of the cover layer, which closes the outsole 1 to the inside must be greater than zero mm.
  • FIG. 2a shows a top view of the inside A of an outsole 1 according to the invention from FIG. 1 made of sole material 2 with cross-sectional area 3 ′ (hatched) drawn in hatching of the openings 3 towards the cover layer.
  • the cross-sectional area 3 'of the openings to the cover layer is advantageously dimensioned such that the cross-sectional area 3' of the openings 3 to the cover layer is 30 to 80%, particularly preferably 30 to 70% of the cover layer.
  • FIG 3 shows an enlargement of section B of a further outsole 1 according to the invention with openings 4 to the outside, which are closed to the inside A of the outsole 1 with sole material 2, the inside A again being designed as a closed cover layer.
  • the openings have the shape of an isosceles trapezoid, the diameter of which increases from the inside to the street side.
  • FIG. 3a shows a plan view of the inside A of the outsole 1 according to the invention from FIG. 3 made of sole material 2 with cross-sectional area 4 ′ (hatched) drawn in hatching of the openings 4 towards the cover layer.
  • the cross-sectional area 4 ′ of the openings towards the cover layer is advantageously dimensioned such that the cross-sectional area 4 ′ of the openings 4 towards the cover layer is 30 to 80%, particularly preferably 30 to 70% of the cover layer.
  • FIG. 4 shows an enlargement of section B of a further outsole 1 according to the invention with openings 5 to the outside, which are closed to the inside A of the outsole 1 with sole material 2, the inside A again being designed as a closed cover layer.
  • the openings have the shape of a round stamp, the diameter of which increases from the street to the inside. This provides a particularly large area for the passage of water vapor through the cover layer in the area of the openings towards the cover layer. At the same time, the smaller opening diameter on the street side makes it difficult for e.g. Stones, fragments or nails.
  • FIG. 4a shows a top view of the inside A of the outsole 1 according to the invention from FIG. 4 made of sole material 2 with cross-sectional area 5 ′ (hatched in outline) of the openings 5 to the cover layer.
  • the cross-sectional area 5 'of the openings to the cover layer is advantageously dimensioned such that the cross-sectional area 5' of the openings 5 to the cover layer is 30 to 80%, particularly preferably 30 to 70% of the cover layer.
  • FIG. 5 shows a modification of the outsole shown in FIG. 4, in which the cover layer is arched. This provides a particularly large area for the passage of water vapor through the cover layer in the area of the openings. Furthermore, webs 6 are arranged in the outsole according to the invention according to FIG. 5, which give the outsole increased flexibility.
  • FIG. 5 shows a modification of the outsole shown in FIG. 4, in which the cover layer is arched. This provides a particularly large area for the passage of water vapor through the cover layer in the area of the openings. Furthermore, webs 6 are arranged in the outsole according to the invention according to FIG. 5, which give the outsole increased flexibility.
  • FIGS. 3, 4 and 5 what has been said in the description of FIG. 2 applies analogously to the thickness d of the cover layer which closes the outsole 1 to the inside.
  • thermoplastic rubbers gums, polyvinyl chlorides, polyurethanes, thermoplastic polyurethanes, ethyl vinyl acetates or latices and
  • the selected polymer / copolymer pair is then mixed in a volume ratio of 10 to 80% by volume, preferably 10 to 70% by volume and particularly preferably 10 to 50% by volume of copolymer, based on the volume of the outsole, and usually , e.g. the outsole according to the invention is produced by shaping the mixture in the liquid state and hardening the shaped mixture
  • outsole - Or is equipped with outward-facing openings which are closed to the inside of the outsole with sole material, and thereby - the desired value of the thickness of the sole material which closes the openings of the outsole to the inside, ie the desired value of the thickness d of the cover layer and - Has the desired value of the cross-sectional area of the openings towards the cover layer.
  • a variety of differently designed outsoles can be produced in a simple manner, such as the outsoles shown in FIGS. 1, 2, 2a, 3 and 3b, which - although only constructed in one layer - are at the same time sufficiently abrasion-resistant, permeable to water vapor and waterproof even after contact with surfactants are.
  • outsoles according to the invention shown in FIGS. 4 and 4a are at the same time sufficiently abrasion-resistant, permeable to water vapor and waterproof even after contact with surfactants and can be prepared by the person skilled in the art in several sub-steps in a manner known per se.

Abstract

The invention relates to a watertight outsole (1) for footwear, which is permeable to water vapour, and comprises a mixture consisting of a) a polymer selected from the group of thermoplastic unvulcanised rubber, vulcanised rubber, polyvinylchlorides, polyurethanes, and thermoplastic polyurethanes, ethyl vinyl acetates or latex, and b) between 10 and 80 vol. %, in relation to the volume of the outsole, of a copolymer selected from the group of hydrophile polyether esters, polyether amides or polyether urethanes.

Description

Wasserdampfdurchlässige und wasserdichte Laufsohle für Schuhwerk Water-vapor permeable and waterproof outsole for footwear
Beschreibung:Description:
Die vorliegende Erfindung betrifft eine wasserdampfdurchlässige und wasserdichte Laufsohle für Schuhwerk.The present invention relates to a water vapor permeable and waterproof outsole for footwear.
EP 0 959 704 B1 beschreibt eine zweilagige Laufsohle mit einer elastischen wasserdampfdurchlässigen Innenlage und einer Außenlage, welche weniger als 70 % der Innenlage abdeckt. Die Innenlage ist vorzugsweise mikroporös, wodurch ein ungehinderter Wasserdampftransport gewährleistet wird. Als Material für die Innenlage wird vorzugsweise gesinterter Kunststoff oder ein Filz, Vlies, Gewebe oder Gewirke aus Kunststoff verwendet, wobei als Kunststoff insbesondere Polyester, Polypropylen oder Polyethylen zum Einsatz kommt. In einer weiteren Ausführungsform wird die MikroStruktur der Innenlage derart gestaltet, dass sie zusätzlich hydrophobe Eigenschaften aufweist und dadurch wasserdicht wird. Dies wird durch eine entsprechende Herstellung des gesinterten Kunststoffes realisiert, z.B. durch Bearbeitung von gesintertem Polyethylen im hoch- oder ultrahochmolekularen Zustand. Die in EP 0 959 704 B1 beschriebene Laufsohle weist aber folgende Nachteile auf:EP 0 959 704 B1 describes a two-layer outsole with an elastic water-vapor-permeable inner layer and an outer layer, which covers less than 70% of the inner layer. The inner layer is preferably microporous, which ensures unimpeded water vapor transport. Sintered plastic or a felt, fleece, woven or knitted fabric made of plastic is preferably used as the material for the inner layer, polyester, polypropylene or polyethylene being used in particular as the plastic. In a further embodiment, the microstructure of the inner layer is designed in such a way that it additionally has hydrophobic properties and is therefore waterproof. This is achieved by a corresponding production of the sintered plastic, e.g. by processing sintered polyethylene in the high or ultra high molecular state. However, the outsole described in EP 0 959 704 B1 has the following disadvantages:
Die Außenlage der Laufsohle besteht aus abriebstabilen Kunststoffen, wie z.B. Polyurethan oder Polyvinylchlorid. Jedoch sind diese Kunststoffe was- serdampfundurchlässig. Um die Laufsohle zusätzlich wasserdampfdurchlässig zu machen, muß man gemäß EP 0 959 704 B1 die Außenlage öffnen und über die Öffnungen auf der zum Fuß gewandten Seite die bereits er- wähnte wasserdampfdurchlässige Innenlage anbringen. Somit erzwingt die in EP 0 959 704 B1 erteilte Lehre einen zweilagigen Aufbau der Laufsohle, wodurch ein Herstellungsaufwand resultiert, der größer ist als bei einer einlagigen Sohle.The outer layer of the outsole is made of abrasion-resistant plastics, such as polyurethane or polyvinyl chloride. However, these plastics are impermeable to water vapor. In order to additionally make the outsole permeable to water vapor, the outer layer must be opened in accordance with EP 0 959 704 B1 and the openings already on the side facing the foot must be install the water vapor permeable inner layer. Thus, the teaching given in EP 0 959 704 B1 enforces a two-layer construction of the outsole, which results in a production outlay which is greater than in the case of a single-layer sole.
- Die Wasserdichtigkeit der Innenlage ist nur solange gewährleistet, wie die Laufsohle nicht mit Tensiden benetzt wird. Tritt der Träger eines Schuhs mit besagter Laufsohle in eine tensidhaltige Wasserpfütze, sind die Kapillarkräfte der Mikroporen aktiviert mit der Folge, dass die Wasserdichtigkeit der Laufsohle dauerhaft verloren geht. Um dies zu verhindern, muß oberhalb der Innensohle eine wasserdampfdurchlässige und wasserdichte Membran aufgebügelt werden. Die Innensohle bewirkt den Schutz der empfindlichen Membran vor einer mechanischen Zerstörung. Um die Wasserdichtigkeit der Laufsohle auch beim Kontakt mit Tensiden zu gewährleisten, erzwingt somit die in EP 0 959 704 B1 erteilte Lehre sogar einen dreilagigen Aufbau der Sohle, wodurch der Herstellungsaufwand für die Sohle nochmals erhöht wird.- The waterproofness of the inner layer is only guaranteed as long as the outsole is not wetted with surfactants. If the wearer of a shoe with said outsole enters a puddle of surfactant, the capillary forces of the micropores are activated, with the result that the waterproofness of the outsole is permanently lost. To prevent this, a water vapor permeable and waterproof membrane must be ironed on above the insole. The insole protects the sensitive membrane from mechanical destruction. In order to ensure that the outsole is watertight even when it comes into contact with surfactants, the teaching given in EP 0 959 704 B1 even enforces a three-layer structure of the sole, which increases the manufacturing effort for the sole again.
Daher stellt sich die vorliegende Erfindung die Aufgabe, eine Laufsohle zur Verfügung zu stellen, wodurch die vorstehend beschriebenen Nachteile zumindest reduziert werden.Therefore, the present invention has for its object to provide an outsole, whereby the disadvantages described above are at least reduced.
Dies Aufgabe wird gelöst durch eine wasserdampfdurchlässige und wasserdichte Laufsohle für Schuhwerk, wobei die Laufsohle eine Mischung aus a) einem Polymer ausgewählt aus der Gruppe der thermoplastischen Kautschuke, Gummen, Polyvinylchloride, Polyurethane, thermoplastischen Polyurethane, Ethylvinylacetate oder Latices und b) bezogen auf das Volumen der Laufsohle 10 bis 80 Vol.-% eines Copolyme- ren ausgewählt aus der Gruppe der hydrophilen Polyetherester, Polyetheramide oder Polyetherurethane umfasst.This object is achieved by a water vapor permeable and waterproof outsole for footwear, the outsole being a mixture of a) a polymer selected from the group consisting of thermoplastic rubbers, gums, polyvinyl chlorides, polyurethanes, thermoplastic polyurethanes, ethyl vinyl acetates or latices and b) based on the volume the outsole 10 to 80 vol .-% of a copolymer selected from the group of hydrophilic polyether esters, polyether amides or polyether urethanes.
Überraschenderweise wurde gefunden, dass die erfindungsgemäße Laufsohle - obwohl nur einlagig ausgebildet - gleichzeitig ausreichend abriebfest, wasserdicht und in höherem Maße wasserdampfdurchlässig ist als eine Laufsohle, die nur aus einem der unter a) genannten Polymeren besteht.Surprisingly, it was found that the outsole according to the invention - although only constructed in one layer - is at the same time sufficiently abrasion-resistant, waterproof and, to a greater extent, water vapor permeable than an outsole which consists only of one of the polymers mentioned under a).
Da die erfindungsgemäße Laufsohle keine zweite Außenlage benötigt, steht die gesamte zur Straße gewandte Außenoberfläche der erfindungsgemäßen Laufsohle für die Ableitung des zwischen der Trittfläche des Fußes und der Innenfläche der Sohle gebildeten Wasserdampfs zur Straßenseite zur Verfügung. Auch die Außenkante der erfindungsgemäßen Laufsohle wirkt beim Transport von Wasserdampf, der sich zwischen der Trittfläche des Fußes und der Innenfläche der erfindungsgemäßen Sohle bildet, mit.Since the outsole according to the invention does not require a second outer layer, the entire outer surface of the outsole facing the street is available for the discharge of the water vapor formed between the tread of the foot and the inner surface of the sole to the street side. The outer edge of the outsole according to the invention also participates in the transport of water vapor which forms between the tread of the foot and the inner surface of the sole according to the invention.
Das aus der Gruppe der hydrophilen Polyetherester, Polyetheramide oder Polyetherurethane ausgewählten Copolymer ist porenfrei. Daher existieren keine Kapillarkräfte, welche tensid haltiges Wasser von der Staßenseite durch die Sohle in die Trittfläche des Fußes saugen könnten. Folglich können tensidhalti- ge Wasserpfützen der Wasserdichtigkeit der erfindungsgemäßen Laufsohle nichts anhaben. Dadurch entfällt die Notwendigkeit, die Wasserdichtigkeit der erfindungsgemäßen Laufsohle durch eine auf der Fußseite der Sohle aufzubringende wasserdampfdurchlässige und wasserdichte Membran abzusichern.The copolymer selected from the group of hydrophilic polyether esters, polyether amides or polyether urethanes is non-porous. Therefore, there are no capillary forces that could suck water containing tenside from the street side through the sole into the tread of the foot. As a result, water puddles containing surfactants cannot affect the water resistance of the outsole according to the invention. This eliminates the need to ensure the watertightness of the outsole according to the invention by a water vapor permeable and waterproof membrane to be applied to the foot side of the sole.
Wie bereits erwähnt, umfasst die erfindungsgemäße Laufsohle 10 bis 80 Vol.- %, bevorzugt 10 bis 70 Vol.-% und besonders bevorzugt 10 bis 50 Vol.-% eines Copolymeren ausgewählt aus der Gruppe der hydrophilen Polyetherester, Polyetheramide oder Polyetherurethane. Für Einsatzbereiche der erfindungsgemäßen Sohle, in denen es vordringlich auf eine möglichst hohe Wasserdampfdurchlässigkeit ankommt, wird man einen Copolymeranteil bevorzogen, der an der vorstehend genannten Obergrenze orientiert ist, während für Eirtsatzberei- ehe der erfindungsgemäßen Sohle, in denen es vordringlich auf eine lange Gebrauchsdauer ankommt, ein Copolymeranteil bevorzugt wird, der sich an der vorstehend genannten Untergrenze orientiert.As already mentioned, the outsole according to the invention comprises 10 to 80% by volume, preferably 10 to 70% by volume and particularly preferably 10 to 50% by volume of a copolymer selected from the group of the hydrophilic polyether esters, polyether amides or polyether urethanes. For areas of application of the sole according to the invention in which the highest possible water vapor permeability is of primary importance, a copolymer portion is preferred which is based on the above-mentioned upper limit, whereas Before the sole according to the invention, in which a long service life is of primary importance, a copolymer portion is preferred which is based on the above-mentioned lower limit.
In einer bevorzugten Ausführungsform weist die erfindungsgemäße Laufsohle nach außen Öffnungen auf, die zur Innenseite der Laufsohle mit Sohlenmaterial verschlossen sind, wobei die Innenseite als eine geschlossene Deckschicht ausgebildet ist.In a preferred embodiment, the outsole according to the invention has openings on the outside which are closed to the inside of the outsole with sole material, the inside being designed as a closed cover layer.
Die Dicke der Deckschicht, welche die Laufsohle nach innen verschließt, sollte einerseits möglichst gering sein, um eine möglichst hohe Wasserdampfdurchlässigkeit zu ermöglichen, darf aber andererseits nicht zu klein sein, damit die erfindungsgemäße Laufsohle unter Gebrauchsbedingungen einen ausreichenden Widerstand gegen eindringendes Material, z.B. in Gestalt von Steinen, Scherben oder Nägeln gewährleistet. Somit muß die Dicke der Deckschicht, welche die Laufsohle nach innen verschließt, größer als Null mm sein. Eine Dicke der Deckschicht, welche die Laufsohle nach innen verschließt, im Bereich von 0,02 bis 10 mm und besonders bevorzugt im Bereich von 0,02 bis 1 ,00 mm erfüllt die eben genannten Anforderungen bei einer Vielzahl von Gebrauchsbedingungen.The thickness of the cover layer, which closes the outsole on the inside, should on the one hand be as small as possible to enable the highest possible water vapor permeability, but on the other hand must not be too small so that the outsole according to the invention has sufficient resistance to penetrating material, e.g. guaranteed in the form of stones, broken glass or nails. The thickness of the cover layer, which closes the outsole to the inside, must therefore be greater than zero mm. A thickness of the cover layer, which closes the outsole to the inside, in the range from 0.02 to 10 mm and particularly preferably in the range from 0.02 to 1.00 mm, meets the requirements just mentioned under a variety of conditions of use.
Der prozentuale Anteil der Querschnittsfläche der Öffnungen zur Deckschicht hin bezogen auf die Deckschicht kann in einem breiten Bereich gewählt werden. Eine Querschnittsfläche der Öffnungen zur Deckschicht hin von 30 bis 80 % der Deckschicht, besonders bevorzugt von 30 bis 70 % der Deckschicht ist für eine Vielzahl von Gebrauchsbedingungen geeignet.The percentage of the cross-sectional area of the openings towards the cover layer relative to the cover layer can be selected within a wide range. A cross-sectional area of the openings towards the cover layer of 30 to 80% of the cover layer, particularly preferably 30 to 70% of the cover layer, is suitable for a variety of conditions of use.
Wenn besonders hohe Anforderungen an die Abriebfestigkeit der erfindungsgemäßen Laufsohle gestellt werden, kann die Laufsohle nach außen hin mit einem besonders abreibfesten Material beschichtet sein, welches ebenfalls die o.g. Öffnungen frei läßt. Im folgenden werden Ausführungsbeispiele der erfindungsgemäßen Laufsohle anhand von Zeichnungen näher erläutert. Es zeigen:If particularly high demands are placed on the abrasion resistance of the outsole according to the invention, the outsole can be coated on the outside with a particularly abrasion-resistant material, which likewise leaves the above-mentioned openings free. Exemplary embodiments of the outsole according to the invention are explained in more detail below with reference to drawings. Show it:
Fig.1 eine erfindungsgemäße Laufsohle (1)1 an outsole (1) according to the invention
Fig. 2 den Ausschnitt (B) einer erfindungsgemäßen Laufsohle von Fig. 12 shows the detail (B) of an outsole according to the invention from FIG. 1
Fig. 2a eine Draufsicht auf die Innenseite A des Ausschnitts B von Fig. 22a is a plan view of the inside A of section B of FIG. 2nd
Fig. 3 den Ausschnitt (B) einer weiteren erfindungsgemäßen LaufsohleFig. 3 shows the detail (B) of another outsole according to the invention
Fig. 3a eine Draufsicht auf die Innenseite A des Ausschnitts (B) von Fig. 33a shows a top view of the inside A of the detail (B) from FIG. 3
Fig. 4 den Ausschnitt (B) einer weiteren erfindungsgemäßen LaufsohleFig. 4 shows the detail (B) of another outsole according to the invention
Fig. 4a eine Draufsicht auf die Innenseite A des Ausschnitts (B) von Fig. 44a is a plan view of the inside A of the section (B) of FIG. 4th
Fig. 5 zeigt den Ausschnitt (B) einer weiteren erfindungsgemäßen Laufsohle5 shows the section (B) of a further outsole according to the invention
Fig. 1 zeigt eine bevorzugte Ausführungsform der erfindungsgemäße Laufsohle 1 und Ausschnitt B mit Öffnungen nach außen.1 shows a preferred embodiment of the outsole 1 and cutout B according to the invention with openings to the outside.
Fig. 2 zeigt eine Vergrößerung von Ausschnitt B der erfindungsgemäßen Laufsohle 1 von Fig. 1 mit Öffnungen 3 nach außen, die zur Innenseite A der Laufsohle 1 mit Sohlenmaterial 2 verschlossen sind, wobei die Innenseite A als eine geschlossene Deckschicht ausgebildet ist. Die Öffnungen weisen die Form eines an seiner Spitze abgeschnittenen Kegels auf, dessen Durchmesser sich von der Innen- zur Straßenseite hin vergrößert. Die Dicke d der Deckschicht, welche die Laufsohle 1 nach innen verschließt, sollte einerseits möglichst gering sein, um eine möglichst hohe Wasserdampfdurchlässigkeit zu ermöglichen, darf aber andererseits nicht zu klein sein, damit die erfindungsgemäße Laufsohle 1 unter Gebrauchsbedingungen einen ausreichenden Widerstand gegen eindringendes Material, z.B. in Gestalt von Steinen, Scherben oder Nägeln gewährleistet. Somit muß die Dicke der Deckschicht, welche die Laufsohle 1 nach innen verschließt, größer als Null mm sein. Eine Dicke d der Deckschicht, welche die Laufsohle 1 nach innen verschließt, im Bereich von 0,02 bis 10 mm und besonders bevorzugt im Bereich von 0,02 bis 1 ,00 mm erfüllt die eben genannten Anforderungen bei einer Vielzahl von Gebrauchsbedingungen.FIG. 2 shows an enlargement of section B of the outsole 1 according to the invention from FIG. 1 with openings 3 to the outside, which are closed to the inside A of the outsole 1 with sole material 2, the inside A being designed as a closed cover layer. The openings have the shape of a cone cut off at its tip, the diameter of which increases from the inside to the street side. The thickness d of the cover layer, which closes the outsole 1 to the inside, should on the one hand be as small as possible in order to allow the highest possible water vapor permeability, but on the other hand must not be too small so that the outsole 1 according to the invention has sufficient resistance to penetrating material under conditions of use, eg in the form of stones, broken glass or nails. Thus, the thickness of the cover layer, which closes the outsole 1 to the inside, must be greater than zero mm. A thickness d of the cover layer, which closes the outsole 1 to the inside, in the range from 0.02 to 10 mm and particularly preferably in the range from 0.02 to 1.00 mm, meets the requirements just mentioned under a variety of conditions of use.
Fig. 2a zeigt eine Draufsicht auf die Innenseite A einer erfindungsgemäßen Laufsohle 1 von Fig. 1 aus Sohlenmaterial 2 mit schraffiert dargestellter Querschnittsfläche 3' (Kontur gestrichelt gezeichnet) der Öffnungen 3 zur Deckschicht hin. Die Querschnittsfläche 3' der Öffnungen zur Deckschicht hin wird vorteilhafterweise so bemessen, dass die Querschnittsfläche 3' der Öffnungen 3 zur Deckschicht hin 30 bis 80 %, besonders bevorzugt 30 bis 70 % der Deckschicht beträgt.FIG. 2a shows a top view of the inside A of an outsole 1 according to the invention from FIG. 1 made of sole material 2 with cross-sectional area 3 ′ (hatched) drawn in hatching of the openings 3 towards the cover layer. The cross-sectional area 3 'of the openings to the cover layer is advantageously dimensioned such that the cross-sectional area 3' of the openings 3 to the cover layer is 30 to 80%, particularly preferably 30 to 70% of the cover layer.
Fig. 3 zeigt eine Vergrößerung von Ausschnitt B einer weiteren erfindungsgemäßen Laufsohle 1 mit Öffnungen 4 nach außen, die zur Innenseite A der Laufsohle 1 mit Sohlenmaterial 2 verschlossen sind, wobei wiederum die Innenseite A als eine geschlossene Deckschicht ausgebildet ist. Die Öffnungen weisen die Form eines gleichschenkligen Trapezes auf, dessen Durchmesser sich von der Innen- zur Straßenseite hin vergrößert.3 shows an enlargement of section B of a further outsole 1 according to the invention with openings 4 to the outside, which are closed to the inside A of the outsole 1 with sole material 2, the inside A again being designed as a closed cover layer. The openings have the shape of an isosceles trapezoid, the diameter of which increases from the inside to the street side.
Fig. 3a zeigt eine Draufsicht auf die Innenseite A der erfindungsgemäßen Laufsohle 1 von Fig. 3 aus Sohlenmaterial 2 mit schraffiert dargestellter Querschnittsfläche 4' (Kontur gestrichelt gezeichnet) der Öffnungen 4 zur Deckschicht hin. Die Querschnittsfläche 4' der Öffnungen zur Deckschicht hin wird vorteilhafterweise so bemessen, dass die Querschnittsfläche 4' der Öffnungen 4 zur Deckschicht hin 30 bis 80 %, besonders bevorzugt 30 bis 70 % der Deckschicht beträgt.FIG. 3a shows a plan view of the inside A of the outsole 1 according to the invention from FIG. 3 made of sole material 2 with cross-sectional area 4 ′ (hatched) drawn in hatching of the openings 4 towards the cover layer. The cross-sectional area 4 ′ of the openings towards the cover layer is advantageously dimensioned such that the cross-sectional area 4 ′ of the openings 4 towards the cover layer is 30 to 80%, particularly preferably 30 to 70% of the cover layer.
Fig. 4 zeigt eine Vergrößerung von Ausschnitt B einer weiteren erfindungsgemäßen Laufsohle 1 mit Öffnungen 5 nach außen, die zur Innenseite A der Laufsohle 1 mit Sohlenmaterial 2 verschlossen sind, wobei wiederum die Innenseite A als eine geschlossene Deckschicht ausgebildet ist. Die Öffnungen weisen die Form eines runden Stempels auf, dessen Durchmesser sich von der Straßen- zur Innenseite hin vergrößert. Dadurch wird für den Durchtritt von Wasserdampf durch die Deckschicht im Bereich der Öffnungen zur Deckschicht hin eine besonders große Fläche zur Verfügung gestellt. Gleichzeitig bewirkt der zur Straßenseite kleiner bemessene Öffnungsdurchmesser eine Erschwernis für das Eindringen von z.B. Steinen, Scherben oder Nägeln.FIG. 4 shows an enlargement of section B of a further outsole 1 according to the invention with openings 5 to the outside, which are closed to the inside A of the outsole 1 with sole material 2, the inside A again being designed as a closed cover layer. The openings have the shape of a round stamp, the diameter of which increases from the street to the inside. This provides a particularly large area for the passage of water vapor through the cover layer in the area of the openings towards the cover layer. At the same time, the smaller opening diameter on the street side makes it difficult for e.g. Stones, fragments or nails.
Fig. 4a zeigt eine Draufsicht auf die Innenseite A der erfindungsgemäßen Laufsohle 1 von Fig. 4 aus Sohlenmaterial 2 mit schraffiert dargestellter Querschnittsfläche 5' (Kontur gestrichelt gezeichnet) der Öffnungen 5 zur Deckschicht hin. Die Querschnittsfläche 5' der Öffnungen zur Deckschicht hin wird vorteilhafterweise so bemessen, dass die Querschnittsfläche 5' der Öffnungen 5 zur Deckschicht hin 30 bis 80 %, besonders bevorzugt 30 bis 70 % der Deckschicht beträgt.FIG. 4a shows a top view of the inside A of the outsole 1 according to the invention from FIG. 4 made of sole material 2 with cross-sectional area 5 ′ (hatched in outline) of the openings 5 to the cover layer. The cross-sectional area 5 'of the openings to the cover layer is advantageously dimensioned such that the cross-sectional area 5' of the openings 5 to the cover layer is 30 to 80%, particularly preferably 30 to 70% of the cover layer.
Fig. 5 zeigt eine Abwandlung der in Fig. 4 dargestellten Laufsohle, worin die Deckschicht gewölbt ausgeführt ist. Dadurch wird für den Durchtritt von Wasserdampf durch die Deckschicht im Bereich der Öffnungen eine besonders große Fläche zur Verfügung gestellt. Desweiteren sind in der erfindungsgemäßen Laufsohle gemäß Fig. 5 Stege 6 angeordnet, welche der Laufsohle eine erhöhte Flexibilität verleihen. Für die Bezugszeichen 2 und 5 in Fig. 5 gilt sinngemäß das bereits bei der Beschreibung von Fig. 4 Gesagte. In den Figuren 3, 4 und 5 gilt für die Dicke d der Deckschicht, welche die Laufsohle 1 nach innen verschließt, sinngemäß das bei der Beschreibung von Figur 2 Gesagte.FIG. 5 shows a modification of the outsole shown in FIG. 4, in which the cover layer is arched. This provides a particularly large area for the passage of water vapor through the cover layer in the area of the openings. Furthermore, webs 6 are arranged in the outsole according to the invention according to FIG. 5, which give the outsole increased flexibility. For reference numerals 2 and 5 in FIG. 5, what has already been said in the description of FIG. 4 applies analogously. In FIGS. 3, 4 and 5, what has been said in the description of FIG. 2 applies analogously to the thickness d of the cover layer which closes the outsole 1 to the inside.
Zur Herstellung der erfindungsgemäßen Laufsohle wirdTo produce the outsole according to the invention
- ein Polymer aus der Gruppe der thermoplastischen Kautschuke, Gummen, Polyvinylchloride, Polyurethane, thermoplastischen Polyurethane, Ethylvi- nylacetate oder Latices und- A polymer from the group of thermoplastic rubbers, gums, polyvinyl chlorides, polyurethanes, thermoplastic polyurethanes, ethyl vinyl acetates or latices and
- ein Copolymer aus der Gruppe der hydrophilen Polyetherester, Polyetheramide oder Polyetherurethane ausgewählt. Anschließend wird das ausgewählte Polymer/Copolymer-Paar in einem Volumenverhältnis von 10 bis 80 Vol.-%, bevorzugt 10 bis 70 Vol.-% und besonders bevorzugt 10 bis 50 Vol.-% Copolymer bezogen auf das Volumen der Laufsohle gemischt und in üblicherweise, z.B. durch Formen der Mischung im flüssigen Zustand und Härten der geformten Mischung die erfindungsgemäße Laufsohle hergestellt- A copolymer selected from the group of hydrophilic polyether esters, polyether amides or polyether urethanes. The selected polymer / copolymer pair is then mixed in a volume ratio of 10 to 80% by volume, preferably 10 to 70% by volume and particularly preferably 10 to 50% by volume of copolymer, based on the volume of the outsole, and usually , e.g. the outsole according to the invention is produced by shaping the mixture in the liquid state and hardening the shaped mixture
Bei der Herstellung der erfindungsgemäßen Laufsohle wird zum Formen der Mischung eine Form eingesetzt, die ein Negativ der erfindungsgemäßen Laufsohle darstellt. Durch blose Auswahl einer bestimmten geometrischen Ausgestaltung der Form kann somit eine Laufsohle hergestellt werden, dieIn the manufacture of the outsole according to the invention, a mold is used to form the mixture which is a negative of the outsole according to the invention. An outsole can thus be produced by simply selecting a specific geometric design of the shape
- entweder keine nach außen weisende Öffnungen aufweist- either has no outward-facing openings
- oder mit nach außen weisenden Öffnungen ausgestattet ist, die zur Innenseite der Laufsohle mit Sohlenmaterial verschlossen sind, und dabei - den erwünschten Wert der Dicke des Sohlenmaterials, welches die Öffnungen der Laufsohle nach innen verschließt, d.h. den gewünschten Wert der Dicke d der Deckschicht und - den gewünschten Wert der Querschnittsfläche der Öffnungen zur Deckschicht hin aufweist. Somit lassen sich in einfacher Weise ein Vielzahl verschieden ausgestalteter Laufsohlen herstellen, wie etwa die in den Figuren 1, 2, 2a, 3 und 3b dargestellten Laufsohlen, die - obwohl nur einlagig ausgebildet - gleichzeitig ausreichend abriebfest, wasserdampfdurchlässig und auch nach Kontakt mit Tensiden wasserdicht sind.- Or is equipped with outward-facing openings which are closed to the inside of the outsole with sole material, and thereby - the desired value of the thickness of the sole material which closes the openings of the outsole to the inside, ie the desired value of the thickness d of the cover layer and - Has the desired value of the cross-sectional area of the openings towards the cover layer. Thus, a variety of differently designed outsoles can be produced in a simple manner, such as the outsoles shown in FIGS. 1, 2, 2a, 3 and 3b, which - although only constructed in one layer - are at the same time sufficiently abrasion-resistant, permeable to water vapor and waterproof even after contact with surfactants are.
Auch die in den Figuren 4 und 4a dargestellten erfindungsgemäßen Laufsohlen sind gleichzeitig ausreichend abriebfest, wasserdampfdurchlässig und auch nach Kontakt mit Tensiden wasserdicht und können vom Fachmann in an sich bekannter Weise in mehreren Teilschritten hergestellt werden. The outsoles according to the invention shown in FIGS. 4 and 4a are at the same time sufficiently abrasion-resistant, permeable to water vapor and waterproof even after contact with surfactants and can be prepared by the person skilled in the art in several sub-steps in a manner known per se.

Claims

Patentansprüche: claims:
1. Wasserdampfdurchlässige und wasserdichte Laufsohle (1) für Schuhwerk, wobei die Laufsohle eine Mischung aus a) einem Polymer ausgewählt aus der Gruppe der thermoplastischen Kautschuke, Gummen, Polyvinylchloride, Polyurethane, thermoplastischen Polyurethane, Ethylvinylacetate oder Latices und b) bezogen auf das Volumen der Laufsohle 10 bis 80 Vol.-% eines Copolymeren ausgewählt aus der Gruppe der hydrophilen Polyetherester, Polyetheramide oder Polyetherurethane umfasst.1. Water vapor permeable and waterproof outsole (1) for footwear, the outsole being a mixture of a) a polymer selected from the group of thermoplastic rubbers, rubbers, polyvinyl chlorides, polyurethanes, thermoplastic polyurethanes, ethyl vinyl acetates or latices and b) based on the volume of the Outsole comprises 10 to 80 vol .-% of a copolymer selected from the group of hydrophilic polyether esters, polyether amides or polyether urethanes.
2. Laufsohle nach Anspruch 1 , dadurch gekennzeichnet, dass die Laufsohle bezogen auf das Volumen der Laufsohle 10 bis 70 Vol.-% eines Copolymeren ausgewählt aus der Gruppe der hydrophilen Polyetherester, Polye¬2. outsole according to claim 1, characterized in that the outsole based on the volume of the outsole 10 to 70 vol .-% of a copolymer selected from the group of hydrophilic polyether esters, Polye¬
D k hi h D k hi h
Laufsohle nach Anspruch 3, dadurch gekennzeichnet, dass die Dicke (d) der Deckschicht 0,02 bis 10 mm beträgt. Laufsohle nach einem oder mehreren der Ansprüche 2 bis 4, dadurch gekennzeichnet, dass die Querschnittsfläche (3'), (4'), (5') der Öffnungen (3), (4), (5) zur Deckschicht hin 30 bis 80 % der Deckschicht beträgt. Outsole according to claim 3, characterized in that the thickness (d) of the cover layer is 0.02 to 10 mm. Outsole according to one or more of claims 2 to 4, characterized in that the cross-sectional area (3 '), (4'), (5 ') of the openings (3), (4), (5) towards the cover layer 30 to 80 % of the top layer is.
EP04740105A 2003-06-26 2004-06-19 Watertight outsole for footwear, which is permeable to water vapour Not-in-force EP1641362B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10328699A DE10328699B3 (en) 2003-06-26 2003-06-26 Water-vapor permeable and waterproof outsole for footwear
PCT/EP2004/006664 WO2005000061A1 (en) 2003-06-26 2004-06-19 Watertight outsole for footwear, which is permeable to water vapour

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EP1641362A1 true EP1641362A1 (en) 2006-04-05
EP1641362B1 EP1641362B1 (en) 2007-09-05

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AT (1) ATE372068T1 (en)
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EP3169175B1 (en) * 2014-08-27 2020-06-17 NIKE Innovate C.V. Articles of footwear, apparel, and sports equipment with water absorbtion properties
US10064447B2 (en) 2014-08-27 2018-09-04 Nike, Inc. Article of footwear with soil-shedding performance
US10314364B2 (en) 2014-08-27 2019-06-11 Nike, Inc. Soil-shedding article of footwear, and method of using the same
US10076159B2 (en) 2014-08-27 2018-09-18 Nike, Inc. Soil-shedding article of footwear, and method of using the same
TWI706737B (en) * 2014-08-27 2020-10-11 荷蘭商耐基創新公司 Article of footwear with soil-shedding performance
US10455893B2 (en) 2016-03-02 2019-10-29 Nike, Inc. Hydrogel with mesh for soil deflection
US10675609B2 (en) 2016-03-02 2020-06-09 Nike, Inc. Articles with soil-shedding performance
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EP1641362B1 (en) 2007-09-05
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DE502004004890D1 (en) 2007-10-18
WO2005000061A1 (en) 2005-01-06

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