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WO1993010963A1 - Pneus comportant une chape en plastique et procede de fabrication - Google Patents

Pneus comportant une chape en plastique et procede de fabrication Download PDF

Info

Publication number
WO1993010963A1
WO1993010963A1 PCT/GB1992/002179 GB9202179W WO9310963A1 WO 1993010963 A1 WO1993010963 A1 WO 1993010963A1 GB 9202179 W GB9202179 W GB 9202179W WO 9310963 A1 WO9310963 A1 WO 9310963A1
Authority
WO
WIPO (PCT)
Prior art keywords
tread
rubber
tyre
strip
polyurethane
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.)
Ceased
Application number
PCT/GB1992/002179
Other languages
English (en)
Inventor
Brian John Lawton
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.)
COLWAY TYRES Ltd
Original Assignee
COLWAY TYRES Ltd
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 COLWAY TYRES Ltd filed Critical COLWAY TYRES Ltd
Publication of WO1993010963A1 publication Critical patent/WO1993010963A1/fr
Priority to GB9314937A priority Critical patent/GB2274815A/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/52—Unvulcanised treads, e.g. on used tyres; Retreading
    • B29D30/54—Retreading
    • 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
    • B60C1/00—Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
    • B60C1/0016—Compositions of the tread
    • 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

Definitions

  • This invention concerns improvements in or relating to tyres, and to a method of making tyres.
  • a tyre comprising a rubber and material body, and a plastics material tread bonded to the body.
  • the tread is preferably formed substantially from polyurethane . Rubber may be included in the tread and the rubber may be provided in the form of rubber crumb.
  • Rubber crumb is obtained during retreading of tyres and other processes involving rubber products.
  • the tyre body may have been obtained from a previously used tyre, and the plastics material tread added during retreading. Alternatively, the body and tread may have been bonded together during manufacture of a new tyre.
  • the body and tread are preferably bonded together by a strip of rubber which is vulcanised between the body and tread thereby forming a bond therebetween.
  • the ⁇ strip is preferably formed of natural rubber and is desirably between 1 and 1.5mm thick.
  • the present invention also provides a method of making a tyre, the method comprising bonding a rubber and material body to a plastics material tread by locating a strip of unvulcanised rubber therebetween and applying heat and pressure to vulcanise the strip thereby providing a bond between the body and tread.
  • the tread is preferably formed substantially of polyurethane, and the strip is preferably natural rubber.
  • the tread is preferably formed in a mould from liquid polyurethane. Rubber crumb is preferably added to the polyurethane prior to moulding.
  • the body may be obtained from a previously used tyre and the plastics material tread applied during retreading.
  • the body is preferably prepared prior to bonding by sanding and/or buffing.
  • a bonding agent is preferably applied to the tread and/or body and allowed to dry prior to locating the rubber strip between body and tread.
  • a tyre and a method of making same which provides a tyre with the advantages of a rubber body and also the advantages of hard wearing polyurethane as a tread.
  • the polyurethane tread provides increased resistance to oil, chemicals, ageing; and cutting, tearing or penetration by stones or other objects, relative to a conventional rubber tread. Traction and/or skid properties can be enhanced in the tread by a siping process subsequent to manufacture of the tread.
  • rubber crumb may be added to the polyurethane to enhance the grip and/or skid properties of the tread, and other materials may be added as is appropriate.
  • the above tyre permits conventional tyre manufacturing machinery and techniques to be used thereby not incurring extra costs.
  • the rubber strip may be vulcanised in an autoclave as is conventional.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Tyre Moulding (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)

Abstract

Pneu comprenant un corps en matériau et en caoutchouc pouvant avoir été précédemment utilisé, ainsi qu'une chape en polyuréthane soudée audit corps. Le corps et la chape sont soudés en intercalant entre eux une bande en caoutchouc naturel et en appliquant de la chaleur et de la pression, afin de vulcaniser la bande en caoutchouc, de façon à constituer une soudure.
PCT/GB1992/002179 1991-11-26 1992-11-25 Pneus comportant une chape en plastique et procede de fabrication Ceased WO1993010963A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9314937A GB2274815A (en) 1991-11-26 1993-07-19 Tyres with plastics tread and method for their manufacturing

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9125231.2 1991-11-26
GB919125231A GB9125231D0 (en) 1991-11-26 1991-11-26 Improved tyres

Publications (1)

Publication Number Publication Date
WO1993010963A1 true WO1993010963A1 (fr) 1993-06-10

Family

ID=10705329

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1992/002179 Ceased WO1993010963A1 (fr) 1991-11-26 1992-11-25 Pneus comportant une chape en plastique et procede de fabrication

Country Status (3)

Country Link
AU (1) AU2951692A (fr)
GB (2) GB9125231D0 (fr)
WO (1) WO1993010963A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2270888A (en) * 1992-09-23 1994-03-30 Compounding Ingredients Limite Tyre tread

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1056414A (en) * 1963-03-12 1967-01-25 Montedison Spa Manufacture and retreading of tyres
FR2073906A5 (fr) * 1969-12-17 1971-10-01 Mitsui Petrochemical Ind
US4104265A (en) * 1975-01-30 1978-08-01 Compagnie Generale Des Etablissements Michelin Vulcanization process for preparation of polyurethane tires
GB1557110A (en) * 1976-11-18 1979-12-05 Lensmar Ab Jan Body containing binding agent and vulcanized rubber
GB2039232A (en) * 1978-12-14 1980-08-06 Synair Corp Method of bonding urethane formulations to rubber
US4267079A (en) * 1979-11-13 1981-05-12 The Firestone Tire & Rubber Company Cured rubber skim compositions exhibiting better humidity aged metal adhesion and metal adhesion retention
US4343339A (en) * 1978-09-06 1982-08-10 Bayer Aktiengesellschaft Process for the production of tires comprising vulcanized elastomers containing urethane groups
DE3124912A1 (de) * 1981-06-25 1983-01-13 Paul 4600 Dortmund Rösler "verfahren zur runderneuerung von reifen und danach hergestellter reifen"
DE3416690A1 (de) * 1984-05-05 1986-01-02 Bandag Inc., Muscatine, Ia. Laufstreifen zur erneuerung von fahrzeugreifen und herstellungsverfahren hierfuer
EP0209512A2 (fr) * 1985-06-19 1987-01-21 LIM Kunststoff-Technologie Gesellschaft m.b.H. Stratifiés, en particulier pneus ainsi que procédé et produit d'accrochage pour leur préparation
US4770741A (en) * 1983-11-22 1988-09-13 Day Holdings (Proprietary) Ltd. Accessory for a tire tread builder
US4909873A (en) * 1988-10-03 1990-03-20 Detwiler Richard H Method of splicing adjacent ends of precured tread material when retreading tires therewith

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1056414A (en) * 1963-03-12 1967-01-25 Montedison Spa Manufacture and retreading of tyres
FR2073906A5 (fr) * 1969-12-17 1971-10-01 Mitsui Petrochemical Ind
US4104265A (en) * 1975-01-30 1978-08-01 Compagnie Generale Des Etablissements Michelin Vulcanization process for preparation of polyurethane tires
GB1557110A (en) * 1976-11-18 1979-12-05 Lensmar Ab Jan Body containing binding agent and vulcanized rubber
US4343339A (en) * 1978-09-06 1982-08-10 Bayer Aktiengesellschaft Process for the production of tires comprising vulcanized elastomers containing urethane groups
GB2039232A (en) * 1978-12-14 1980-08-06 Synair Corp Method of bonding urethane formulations to rubber
US4267079A (en) * 1979-11-13 1981-05-12 The Firestone Tire & Rubber Company Cured rubber skim compositions exhibiting better humidity aged metal adhesion and metal adhesion retention
DE3124912A1 (de) * 1981-06-25 1983-01-13 Paul 4600 Dortmund Rösler "verfahren zur runderneuerung von reifen und danach hergestellter reifen"
US4770741A (en) * 1983-11-22 1988-09-13 Day Holdings (Proprietary) Ltd. Accessory for a tire tread builder
DE3416690A1 (de) * 1984-05-05 1986-01-02 Bandag Inc., Muscatine, Ia. Laufstreifen zur erneuerung von fahrzeugreifen und herstellungsverfahren hierfuer
EP0209512A2 (fr) * 1985-06-19 1987-01-21 LIM Kunststoff-Technologie Gesellschaft m.b.H. Stratifiés, en particulier pneus ainsi que procédé et produit d'accrochage pour leur préparation
US4909873A (en) * 1988-10-03 1990-03-20 Detwiler Richard H Method of splicing adjacent ends of precured tread material when retreading tires therewith

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2270888A (en) * 1992-09-23 1994-03-30 Compounding Ingredients Limite Tyre tread
GB2270888B (en) * 1992-09-23 1995-07-19 Compounding Ingredients Limite Tyre tread

Also Published As

Publication number Publication date
GB2274815A (en) 1994-08-10
AU2951692A (en) 1993-06-28
GB9125231D0 (en) 1992-01-29
GB9314937D0 (en) 1994-05-11

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