GB2351691A - A method of moulding a composite article having an adhesion preventing surface layer - Google Patents

A method of moulding a composite article having an adhesion preventing surface layer Download PDF

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Publication number
GB2351691A
GB2351691A GB9915376A GB9915376A GB2351691A GB 2351691 A GB2351691 A GB 2351691A GB 9915376 A GB9915376 A GB 9915376A GB 9915376 A GB9915376 A GB 9915376A GB 2351691 A GB2351691 A GB 2351691A
Authority
GB
United Kingdom
Prior art keywords
moulding
composite article
adhesion preventing
surface layer
mouldable material
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
GB9915376A
Other versions
GB2351691B (en
GB9915376D0 (en
Inventor
Joanne Emma Sparks
Gordon Smith
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.)
UK Secretary of State for Defence
Original Assignee
UK Secretary of State for Defence
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 UK Secretary of State for Defence filed Critical UK Secretary of State for Defence
Priority to GB9915376A priority Critical patent/GB2351691B/en
Publication of GB9915376D0 publication Critical patent/GB9915376D0/en
Publication of GB2351691A publication Critical patent/GB2351691A/en
Application granted granted Critical
Publication of GB2351691B publication Critical patent/GB2351691B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D35/00—Producing footwear
    • B29D35/12—Producing parts thereof, e.g. soles, heels, uppers, by a moulding technique
    • B29D35/14—Multilayered parts
    • B29D35/142—Soles
    • 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
    • A43B13/026—Composites, e.g. carbon fibre or aramid fibre; the sole, one or more sole layers or sole part being made of a composite
    • 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
    • A43B13/12—Soles with several layers of different materials
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00—Soles; Sole-and-heel integral units
    • A43B13/14—Soles; Sole-and-heel integral units characterised by the constructive form
    • A43B13/22—Soles made slip-preventing or wear-resisting, e.g. by impregnation or spreading a wear-resisting layer
    • A43B13/223—Profiled soles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
    • B29C37/0067—Using separating agents during or after moulding; Applying separating agents on preforms or articles, e.g. to prevent sticking to each other
    • B29C37/0075—Using separating agents during or after moulding; Applying separating agents on preforms or articles, e.g. to prevent sticking to each other using release sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14311—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles using means for bonding the coating to the articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form
    • B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B32B3/30—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer formed with recesses or projections, e.g. hollows, grooves, protuberances, ribs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/10—Interconnection of layers at least one layer having inter-reactive properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
    • B60C11/03—Tread patterns
    • B60C11/13—Tread patterns characterised by the groove cross-section, e.g. for buttressing or preventing stone-trapping
    • B60C11/1307—Tread patterns characterised by the groove cross-section, e.g. for buttressing or preventing stone-trapping with special features of the groove walls
    • B60C11/1346—Tread patterns characterised by the groove cross-section, e.g. for buttressing or preventing stone-trapping with special features of the groove walls covered by a rubber different from the tread rubber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/07—Flat, e.g. panels
    • B29C48/08—Flat, e.g. panels flexible, e.g. films

Abstract

A method of moulding a composite article 2 having an adhesion preventing surface layer 4 and a substrate layer of a mouldable material 6, comprises the steps of firstly introducing a compatibiliser compound into either a stock of the mouldable material or the surface layer material. The two materials are then brought into contact in a mould under conditions of heat and pressure so that the mouldable material reacts with the material of the surface layer to form a chemical bond at their interface 18 under the influence of the compatibilser compound. The mouldable material may be polyurethane, a polyolefin, or a natural rubber, and the compatibiliser compound may be maleic anhydride. Preferably the adhesion preventing layer material is PTFE or a silicone material. The moulded article formed may have a gripping surface configured to prevent mud from sticking to it. For instance the moulded article may be the sole of a wellington boot, or a shoe, or the tread 26 of a tyre for a mountain bicycle, wheeled vehicle, or tracked vehicle having grooves 28. The method of moulding may include injection, compression or extrusion techniques.

Description

2351691 MUD SHEDDING TREAD This invention relates to a method of moulding
a composite article having an adhesion preventing surface layer and a substrate layer of a mouldable material. Articles made to invention may have a gripping surface that can be configured so as to exhibit mud shedding properties. Such gripping surfaces find use in situations where control over grip such as in muddy terrain is important, for example the sole of a boot or the tyre of a mountain bicycle. Tread designs on boots or tyres result from the requirement to produce as much grip as possible.
A problem with such tread design is that whilst they are effective on hard surfaces; on soft muddy surfaces they collect mud in grooves cut into the sole or tyre. Mud sticking to a tread reduces the grip and in the case of a boot sole makes walking more difficult because of the weight added to the boot.
Previous work in this field teaches the use of an adhesion preventing layer on at least part of the tread. Japanese patent application JP 9672267 (EOMO SAKAE) specifies cladding with mud adhesion preventing layer comprising low hardness elastic material.
The claimed advantage is a reduction in mud adhesion without a reduction in traction. Japanese patent application JP 95105875 (EOMO SAKAE; IIJIMA TOKUICHIRO) specifies a low-hardness elastic body as the mud adhesion prevention layer. Japanese patent application JP 95318373 (EOMO SAKAE; NOHARA DAISUKE) specifies a of a low hardness elastic layer, which has many small dents on the surface made of a foam rubber to reduce mud adhesion. Japanese patent application JP 9620074 specifies an elastic body layer having low hardness.
However, Japanese patent application JP 94299709 (MATSUMOTO KOICHI) specifies a surface with a decreased coefficient of fhction to reduce mud adhesion. The person skilled in the art will see that a surface layer with decreased coefficient of ffiction will be difficulty to bond to other material for example the support structure of a sole because of its inherently low coefficient of friction.
According to the current invention there is provided a method of moulding a composite article having an adhesion preventing surface layer and a substrate layer of a mouldable material, characterised in that the method comprises introducing a compatibiliser compound into a stock of the mouldable material, bringing the compatibilised mouldable material and the surface layer material into contact in a mould under conditions of heat and pressure such that the mouldable material reacts with the material of the surface layer to form a chemical bond at an interface therebetween under the influence of the compatibiliser compound. The advantage of this aspect of the invention is that it overcomes the problem associated with the difficulty of bonding a slippery material to another other material. This aspect of the invention allows the moulding of a low friction material over a core polymer.
According to another aspect of the invention the conditions of heat and pressure are applied in an injection moulding machine. This process is similar to that described in GB 2280401 (Ronald A EASTERLOW; Gordon F SMITH) in the name of the Rover Group. The advantage of this aspect of the invention is that the conditions of heat and pressure obtainable by injection moulding allow the bond to form at the interface between the adhesion preventing surface layer and the substrate layer. Articles with a complex shape can be made in this way.
According to another aspect of the invention the conditions of heat and pressure are applied in a compression moulding machine. The advantage of this aspect of the invention is that the conditions of heat and pressure obtainable by compression moulding allow the bond to form at the interface between the adhesion preventing surface layer and the substrate layer. Plate like articles can be made in this way.
According to another aspect of the invention the conditions of heat and pressure are applied are applied in an extrusion machine. The advantage of this aspect of the invention is that the conditions of heat and pressure obtainable by compression moulding allow the bond to form at the interface between the adhesion preventing surface layer and the substrate layer. Articles having a high ratio of length to breadth can be made in this way.
According to another aspect of the invention the mouldable material is a polyurethane, a polyolefin or a natural rubber. This gives a choice of materials from which to make a substrate or supporting structure for an article made to the invention.
According to another aspect of the invention the compatibiliser compound comprises maleic anhydride. The advantage of this aspect of the invention is that the maleic anhydride influences the formation of a chemical bond between the adhesion preventing surface layer and the substrate layer.
According to another aspect of the invention the adhesion preventing layer material is PTFE or a silicone material. The applicant tested a range of materials for their ability to resist mud pick up. PTFE and silicone materials were successful in this respect.
According to another aspect of the invention a compatibiliser compound is added to a stock of the adhesion preventing material instead of the mouldable material. The advantage of this aspect of the invention is that it provides an alternative method of manufacture.
According to another aspect of the invention a compatibiliser compound is added to a stock of the mouldable material and to a stock of the adhesion preventing material. The advantage of this aspect of the invention is that it provides an alternative method of manufacture.
According to another aspect the invention includes composite articles made to the invention. These articles will have a non-sticking or slippery surface on the outside of an article. For example in a tread with grooves having recessed surfaces the adhesion preventing layer may be applied to the recessed surfaces. The advantage of this aspect of the invention is that such a tread would have mud shedding properties.
That is mud would have a low tendency to stick to grooved portions of such a tread. Also the articles made to the invention could be used between 2 objects, form a surface of one object which comes into contact with a second object or form a surface of both objects, to reduce friction between the two objects thus assisting in moving the objects in relation to each other.
According to another aspect the invention an article made according to the invention may be a boot, a shoe or a wellington having with a tread as in the previous aspect of the invention. The advantage of such a boot, a shoe or a wellington is that because of the reduced tendency to pick up mud they will be more comfortable to wear and will not slow down the progress of a wearer in muddy conditions.
According to another aspect the invention an article made according to the invention may be a tyre for a wheeled or tracked vehicle having with a tread as in the previous aspect of the invention. The advantage of such a tyre that because of the reduced tendency to pick up mud they will not slow down the progress of a vehicle in muddy conditions.
By way of example, a method of manufacture according to the invention will now be described, with reference to the drawings:
Figure 1, a cross-sectional view of a composite article according to the 10 invention, Figure 2, a side view of a tread made to a method according to the invention, Referring firstly to Figure 1, this shows a composite article 2, made according the method of the invention, having an adhesion preventing layer 4, and a substrate layer of a compatibilised mouldable material 6. The method of manufacture comprises the steps of introducing a compatibiliser compound into a stock of the mouldable material, bringing the compatibilised mouldable material 6, into contact with the surface layer material 4, in a mould, not shown, under conditions of heat and pressure. The compatibilised mouldable material 6 reacts with the adhesion preventing material 4 to form a chemical bond 16 at an interface 18 between the compatibilised mouldable material 6, and the material of the surface layer 4. This may be performed by use of an injection moulding machine, or a compression moulding machine or an extrusion machine, not shown.
Referring next to Figure 2, this shows a tread 26, made by a method according to the invention, having groves 28, formed in the compatibilised mouldable material 6, with recessed surfaces 30, and the adhesion preventing layer 4 applied to the recessed surfaces 30, by a chemical bond at surfaces 30.

Claims (14)

  1. CLAIMS 1. A method of moulding a composite article having an adhesion
    preventing surface layer and a substrate layer of a mouldable material, characterised in that the method comprises introducing a 5 compatibiliser compound into a stock of the mouldable material, bringing the compatibilised mouldable material and the surface layer material into contact in a mould under conditions of heat and pressure such that the mouldable material reacts with the material of the surface layer to form a chemical bond at an interface therebetween 10 under the influence of the compatibiliser compound.
  2. 2. A method of moulding a composite article as claimed in claim 1 wherein the conditions of heat and pressure are applied in an injection moulding machine. 15
  3. 3. A method of moulding a composite article as claimed in claim 1 wherein the conditions of heat and pressure are applied in a compression moulding machine. 2o
  4. 4. A method of moulding a composite article as claimed in claim 1 wherein the conditions of heat and pressure are applied in an extrusion machine.
  5. 5. A method of moulding a composite article as claimed in any one of 25 the preceding claims wherein the mouldable material is a polyurethane, a polyolefin or a natural rubber.
  6. 6. A method of moulding a composite article as claimed in any one of the preceding claims wherein the compatibiliser compound comprises maleic anhydride.
  7. 7. A method of moulding a composite article as claimed in any one of the preceding claims wherein the adhesion preventing layer material is PTFE or a silicone material.
  8. 8. A method of moulding a composite article as claimed in claim 1 wherein a compatibiliser compound is to a stock of the adhesion preventing material instead of the mouldable material.
  9. 9. A method of moulding a composite article as claimed in claim 1 wherein a compatibiliser compound is added to a stock of the mouldable material and to a stock of the adhesion preventing material.
  10. 10. A composite article made in accordance with the method claimed in any one of claim 1 to claim 9.
  11. 11. An composite article as claimed in claim 10 being a tread with grooves having recessed surfaces the adhesion preventing layer being applied to the recessed surfaces.
  12. 12. A boot shoe or wellington having a tread as claimed in claim 11.
  13. 13. A tyre for a wheeled or tracked vehicle having a tread as claimed in claim 11.
  14. 14. An article made according any one of the preceding claims comprising the combination and arrangement of parts substantially as described herein with reference to Figures 1 to 2.
GB9915376A 1999-07-02 1999-07-02 A method of moulding a composite article having an adhesion preventing surface layer Expired - Fee Related GB2351691B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9915376A GB2351691B (en) 1999-07-02 1999-07-02 A method of moulding a composite article having an adhesion preventing surface layer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9915376A GB2351691B (en) 1999-07-02 1999-07-02 A method of moulding a composite article having an adhesion preventing surface layer

Publications (3)

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GB9915376D0 GB9915376D0 (en) 1999-09-01
GB2351691A true GB2351691A (en) 2001-01-10
GB2351691B GB2351691B (en) 2004-04-21

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006048510A1 (en) 2004-11-03 2006-05-11 Purtechnic Finland Oy Vehicle tyre
WO2007090246A1 (en) * 2006-02-07 2007-08-16 Simon Jeremy Skirrow Self cleaning outsoles for shoes
WO2007090245A1 (en) * 2006-02-07 2007-08-16 Simon Jeremy Skirrow Antisoiling improvements to outsoles
WO2007128645A1 (en) * 2006-05-04 2007-11-15 Kraussmaffei Technologies Gmbh Method for producing a coated thermoplastic material
US20090084477A1 (en) * 2007-09-27 2009-04-02 Paul Harry Sandstrom Tire having tread with repellent groove surface
EP2241667A1 (en) 2009-04-14 2010-10-20 Electrolux Home Products Corporation N.V. Household appliance detergent dispenser container, and method of producing the container
CN102582363A (en) * 2012-03-21 2012-07-18 北京化工大学 Second-order decorative pattern polyurethane film-rubber composite tire and molding process thereof
GB2508244A (en) * 2012-11-27 2014-05-28 Dale Windridge Shoe sole with compressible material
US8916001B2 (en) 2006-04-05 2014-12-23 Gvd Corporation Coated molds and related methods and components
WO2015172998A1 (en) * 2014-05-13 2015-11-19 Compagnie Generale Des Etablissements Michelin Tread for a tyre for a vehicle for agricultural use
JP2017105298A (en) * 2015-12-09 2017-06-15 株式会社ブリヂストン tire

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1081112A (en) * 1996-09-11 1998-03-31 Bridgestone Corp Lug traveling body

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4231410A (en) * 1976-01-28 1980-11-04 The Goodyear Tire & Rubber Company Pre-shaped plastic reinforcing member and a tire encapsulating said member
FR2729397B1 (en) * 1995-01-12 1997-03-28 Hutchinson COMPOSITE ELASTOMER AND THERMOPLASTIC PRODUCT AND METHODS OF MAKING SAME
GB2315039A (en) * 1996-07-05 1998-01-21 Rover Group Painted plastics coated articles

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1081112A (en) * 1996-09-11 1998-03-31 Bridgestone Corp Lug traveling body

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006048510A1 (en) 2004-11-03 2006-05-11 Purtechnic Finland Oy Vehicle tyre
WO2007090246A1 (en) * 2006-02-07 2007-08-16 Simon Jeremy Skirrow Self cleaning outsoles for shoes
WO2007090245A1 (en) * 2006-02-07 2007-08-16 Simon Jeremy Skirrow Antisoiling improvements to outsoles
US9211658B2 (en) 2006-04-05 2015-12-15 Gvd Corporation Coated molds and related methods and components
US8916001B2 (en) 2006-04-05 2014-12-23 Gvd Corporation Coated molds and related methods and components
WO2007128645A1 (en) * 2006-05-04 2007-11-15 Kraussmaffei Technologies Gmbh Method for producing a coated thermoplastic material
US9205704B2 (en) * 2007-09-27 2015-12-08 The Goodyear Tire & Rubber Company Tire having tread with repellent groove surface
US20090084477A1 (en) * 2007-09-27 2009-04-02 Paul Harry Sandstrom Tire having tread with repellent groove surface
EP2241667A1 (en) 2009-04-14 2010-10-20 Electrolux Home Products Corporation N.V. Household appliance detergent dispenser container, and method of producing the container
CN102582363A (en) * 2012-03-21 2012-07-18 北京化工大学 Second-order decorative pattern polyurethane film-rubber composite tire and molding process thereof
GB2508244A (en) * 2012-11-27 2014-05-28 Dale Windridge Shoe sole with compressible material
FR3020990A1 (en) * 2014-05-13 2015-11-20 Michelin & Cie TIRE TREAD FOR A VEHICLE FOR AGRICULTURAL USE
WO2015172998A1 (en) * 2014-05-13 2015-11-19 Compagnie Generale Des Etablissements Michelin Tread for a tyre for a vehicle for agricultural use
JP2017105298A (en) * 2015-12-09 2017-06-15 株式会社ブリヂストン tire

Also Published As

Publication number Publication date
GB2351691B (en) 2004-04-21
GB9915376D0 (en) 1999-09-01

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PCNP Patent ceased through non-payment of renewal fee

Effective date: 20070702