WO2007015278A1 - Thermoplastic moulded insert designed to completely fill the inner tube of tyres for bicycles, motorcycles and light vehicles - Google Patents

Thermoplastic moulded insert designed to completely fill the inner tube of tyres for bicycles, motorcycles and light vehicles Download PDF

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Publication number
WO2007015278A1
WO2007015278A1 PCT/IT2005/000770 IT2005000770W WO2007015278A1 WO 2007015278 A1 WO2007015278 A1 WO 2007015278A1 IT 2005000770 W IT2005000770 W IT 2005000770W WO 2007015278 A1 WO2007015278 A1 WO 2007015278A1
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WO
WIPO (PCT)
Prior art keywords
insert
parts
type
equivalent
elastomer
Prior art date
Application number
PCT/IT2005/000770
Other languages
French (fr)
Inventor
Bruno Cardinali
Original Assignee
Tecnofilm S.P.A.
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 Tecnofilm S.P.A. filed Critical Tecnofilm S.P.A.
Publication of WO2007015278A1 publication Critical patent/WO2007015278A1/en

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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
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/04—Resilient fillings for rubber tyres; Filling tyres therewith
    • 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
    • B60C17/00—Tyres characterised by means enabling restricted operation in damaged or deflated condition; Accessories therefor
    • B60C17/04—Tyres characterised by means enabling restricted operation in damaged or deflated condition; Accessories therefor utilising additional non-inflatable supports which become load-supporting in emergency
    • B60C17/06—Tyres characterised by means enabling restricted operation in damaged or deflated condition; Accessories therefor utilising additional non-inflatable supports which become load-supporting in emergency resilient
    • 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
    • B60C17/00—Tyres characterised by means enabling restricted operation in damaged or deflated condition; Accessories therefor
    • B60C17/04—Tyres characterised by means enabling restricted operation in damaged or deflated condition; Accessories therefor utilising additional non-inflatable supports which become load-supporting in emergency
    • B60C17/06—Tyres characterised by means enabling restricted operation in damaged or deflated condition; Accessories therefor utilising additional non-inflatable supports which become load-supporting in emergency resilient
    • B60C17/065—Tyres characterised by means enabling restricted operation in damaged or deflated condition; Accessories therefor utilising additional non-inflatable supports which become load-supporting in emergency resilient made-up of foam 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
    • B60C7/00—Non-inflatable or solid tyres
    • B60C7/10—Non-inflatable or solid tyres characterised by means for increasing resiliency
    • B60C7/101—Tyre casings enclosing a distinct core, e.g. foam
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L21/00—Compositions of unspecified rubbers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/01—Hydrocarbons
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L53/00—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
    • C08L53/02—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers of vinyl-aromatic monomers and conjugated dienes

Definitions

  • Thermoplastic moulded insert designed to completely fill the inner tube of tyres for bicycles, motorcycles and light vehicles.
  • thermoplastic moulded insert designed to completely fill the inner tube of tyres for bicycles, motorcycles and light vehicles.
  • the said insert may be configured as a bar or loop with suitable dimensions.
  • Scientific literature refers to the fabrication of more or less elastic materials used in bicycles, motorcycles and vehicles in general, to replace the inner tube or the inner tube-tyre system, thus eliminating the risk of punctures, explosions or other similar inconveniences.
  • These materials are produced by extrusion or injection and offered with different lengths and cross-sections, for instance cylindrical, oval, trapezoidal, etc. (the cylindrical cross-section being the most used one), obtained from extrusion of vulcanized and suitably expanded elastomers.
  • the most used elastomers are derived from natural rubbers or synthetic rubbers based on styrene butadiene copolymers SBr, ethylene- propylene-diene terpolymers EPDM (i.e. cyclopentadiene, dicyclopentadiene, ethenedyl norbomene etc.), ethylene-propylene copolymers EP, polyisoprene NR, polycloroprene, butene diene copolymers (isoprene or other dienic monomer) and other vulcanizable polymers in general.
  • EPDM i.e. cyclopentadiene, dicyclopentadiene, ethenedyl norbomene etc.
  • EP ethylene-propylene copolymers
  • polyisoprene NR polycloroprene
  • butene diene copolymers isoprene or other dienic monomer
  • other vulcanizable polymers in general.
  • Last, but not least, waste materials are not recycled during production or at the end of the product life cycle.
  • a system has been devised and implemented, being exclusively based on a set of thermoplastic materials, easy to reticulate (if necessary for specific applications), capable of satisfying all the production requirements of low density products used to replace the inner tube of bicycles, motorcycles and light vehicles in general.
  • a single compound may be sufficient to solve the problem, however in general the combination of different materials, provided with specific characteristics in terms of softness, spring back, at high and low temperatures, permits to obtain products with excellent performances also in terms of comfort and dimensional invariance.
  • the compounds of the present invention are based on the use of syndiotactic polybutadiene 1-2 homopolymer, in conjunction with block copolymers SBS, SIS, SEBS, SEPS etc., being plasticized and hardened, if necessary with polyethylene, of any type, LDPE, HDPE, LLDPE, VLDPE etc. or with polypropylene, polystyrene, both crystal and anti-shock or other compatible hardeners, such as EVA, EMA, EBA and similar products.
  • block copolymers SBS, SIS, SEBS, SEPS etc. being plasticized and hardened, if necessary with polyethylene, of any type, LDPE, HDPE, LLDPE, VLDPE etc. or with polypropylene, polystyrene, both crystal and anti-shock or other compatible hardeners, such as EVA, EMA, EBA and similar products.
  • the compound is expanded with special swelling agents of micro- cellular type, which reduce product density to the desired weight levels and ensure suitable resistance to compression and deformation beyond 60° C use temperature.
  • the swelling agents may be a chemical product that decomposes in working conditions, generating gases that remain trapped in the finished product, thus reducing its density.
  • These products may decompose with esothermal process (i.e. AZDC, azodicarbonamide) or endothermal process (i.e. citric acid or tartaric acid and sodium bicarbonate) in suitable concentration to achieve the desired density.
  • esothermal process i.e. AZDC, azodicarbonamide
  • endothermal process i.e. citric acid or tartaric acid and sodium bicarbonate
  • a base compound with medium high hardness (higher than 60 shore A), can be associated by stratification with materials having lower hardness and higher spring back properties, which confer elasticity properties that are complementary to the base material.
  • micro-cellular master (092 MB 120 by AKZO Nobel or equivalent, including in powder form).
  • the material extruded at 160° C at 5 m/min speed has the following characteristics: density 0.4 g/cm 3 , hardness of expanded material 65 shore A, compression set at 60724 h, 50%.
  • EXAMPLE 2 Combination of two layers of materials suitable for fabrication of products used to replace inner tubes. High hardness layer placed in the area adjacent to the rim.
  • the combination of the two materials is obtained by extrusion at 160° C, 5 m/min speed.
  • thermoplastic material may be combined with a reticulating agent during production, to originate a completely or partially vulcanized product, in normal working conditions.
  • the crosslinking agent is of radicalic type, like dicumilperoxide, also in combination with a family of well known vinyl silane derivatives.

Abstract

The present invention refers to a thermoplastic moulded insert designed to completely fill the inner tube of tyres for bicycles, motorcycles and light vehicles.

Description

Thermoplastic moulded insert designed to completely fill the inner tube of tyres for bicycles, motorcycles and light vehicles.
The present patent application refers to a thermoplastic moulded insert designed to completely fill the inner tube of tyres for bicycles, motorcycles and light vehicles.
The said insert may be configured as a bar or loop with suitable dimensions.
Scientific literature refers to the fabrication of more or less elastic materials used in bicycles, motorcycles and vehicles in general, to replace the inner tube or the inner tube-tyre system, thus eliminating the risk of punctures, explosions or other similar inconveniences. These materials are produced by extrusion or injection and offered with different lengths and cross-sections, for instance cylindrical, oval, trapezoidal, etc. (the cylindrical cross-section being the most used one), obtained from extrusion of vulcanized and suitably expanded elastomers.
The most used elastomers are derived from natural rubbers or synthetic rubbers based on styrene butadiene copolymers SBr, ethylene- propylene-diene terpolymers EPDM (i.e. cyclopentadiene, dicyclopentadiene, ethenedyl norbomene etc.), ethylene-propylene copolymers EP, polyisoprene NR, polycloroprene, butene diene copolymers (isoprene or other dienic monomer) and other vulcanizable polymers in general. These products have not been successful on the market due to a series of reasons and inconveniences related to the industrial productions of the bars used in replacement of tyre inner tubes. In fact, extrusion, vulcanization and expansion of elastomers is a delicate operation due to difficulties in obtaining the correct level of hardness, density and constant characteristics, in addition to use at low temperatures.
In addition to the aforementioned difficulties in the production of expanded reticular materials, it is almost impossible to obtain combinations of materials with different characteristics in terms of hardness, spring back and density in order to obtain the desired results with regards to performance and comfort.
Moreover, combinations between layers of vulcanized materials with layers of thermoplastic materials are very difficult and the use of adhesives has not solved the said problems.
Last, but not least, waste materials are not recycled during production or at the end of the product life cycle.
In order to overcome the aforementioned disadvantages, including the combination of different materials, a system has been devised and implemented, being exclusively based on a set of thermoplastic materials, easy to reticulate (if necessary for specific applications), capable of satisfying all the production requirements of low density products used to replace the inner tube of bicycles, motorcycles and light vehicles in general. For some applications, a single compound may be sufficient to solve the problem, however in general the combination of different materials, provided with specific characteristics in terms of softness, spring back, at high and low temperatures, permits to obtain products with excellent performances also in terms of comfort and dimensional invariance. The compounds of the present invention are based on the use of syndiotactic polybutadiene 1-2 homopolymer, in conjunction with block copolymers SBS, SIS, SEBS, SEPS etc., being plasticized and hardened, if necessary with polyethylene, of any type, LDPE, HDPE, LLDPE, VLDPE etc. or with polypropylene, polystyrene, both crystal and anti-shock or other compatible hardeners, such as EVA, EMA, EBA and similar products.
The compound is expanded with special swelling agents of micro- cellular type, which reduce product density to the desired weight levels and ensure suitable resistance to compression and deformation beyond 60° C use temperature. The swelling agents may be a chemical product that decomposes in working conditions, generating gases that remain trapped in the finished product, thus reducing its density. These products may decompose with esothermal process (i.e. AZDC, azodicarbonamide) or endothermal process (i.e. citric acid or tartaric acid and sodium bicarbonate) in suitable concentration to achieve the desired density.
These compounds can be produced and used for applications designed for use of a single body, that is to say not requiring the aid of other soft components to be stratified during moulding.
In any case, and in general, a base compound, with medium high hardness (higher than 60 shore A), can be associated by stratification with materials having lower hardness and higher spring back properties, which confer elasticity properties that are complementary to the base material. EXAMPLE 1
Compound with 70 shore A hardness, used as single component in integral replacement of inner tube
♦ 100 parts of syndiotactict polybutadiene 1-2 (RB
830 by Japan Synthetic Rubber or equivalent).
♦ 10 parts of LLDPE (LL 6201 XR by EXXON Mobil or equivalent).
♦ 25 parts of SEBS (KG 1652 by KRATON or equivalent)
♦ 15 parts of plastifying oil (Celtis 902 by AGIP or equivalent).
♦ 7 part of micro-cellular master (092 MB 120 by AKZO Nobel or equivalent, including in powder form).
The material extruded at 160° C at 5 m/min speed has the following characteristics: density 0.4 g/cm3, hardness of expanded material 65 shore A, compression set at 60724 h, 50%. EXAMPLE 2 Combination of two layers of materials suitable for fabrication of products used to replace inner tubes. High hardness layer placed in the area adjacent to the rim.
♦ -100 parts of syndiotactict polybutadiene 1-2 (type RB 840 by JSR). ♦ -20 parts of LLDPE.
♦ -20 parts of SEBS type KG 1652 (KRATON). ♦ -20 parts of mineral oil type Celtis 902.
♦ -7 parts of micro-cellular expanding agent. Hardness of expanded material is 70 shore A
Low hardness layer placed in contact with tyre and adjacent to ground. ♦ 25 parts of syndiotactic polybutadiene 1-2.
♦ 45 parts of SBS (type 161 B by Polimeri Europa or equivalent).
♦ 50 parts of SEBS type KG1652.
♦ 80 parts of mineral oil type Celtis 902 (AGIP or equivalent).
♦ 4 parts of micro-cellular expanding master, only when an expanded product is desired.
Hardness 40 shore A.
The combination of the two materials is obtained by extrusion at 160° C, 5 m/min speed.
Density 0.40 g/cm3, compression set at 60724 h, 40%. Finally, the said thermoplastic material may be combined with a reticulating agent during production, to originate a completely or partially vulcanized product, in normal working conditions.
The crosslinking agent is of radicalic type, like dicumilperoxide, also in combination with a family of well known vinyl silane derivatives.

Claims

Claims
1) Insert designed to completely fill the inner tube of tyres for bicycles, motorcycles and light vehicles, characterised in that it is made of thermoplastic materials.
2) Insert as defined in claim 1 , characterised in that the thermoplastic element of the said thermoplastic materials is an elastomer or mixtures of elastomers.
3) Insert as defined in claim 2, characterised in that the said elastomer is composed of syndiotactic polybutadiene 1-2, with tacticity higher than 80%. 4)'lnsert as defined in claim 3, characterised in that the concentration of syndiotactic polybutadiene 1-2 ranges from 10 to 90%.
5) Insert as defined in claim 2, characterised in that the said elastomer is composed of block copolymers of SBS, SIS, SEBS, SEPS, and EP type.
6) Insert as defined in claim 5, characterised in that the said elastomer is composed of SBS, SIS, SEBS, SEPS and EP with concentration ranging from 0 to 60%.
7) Insert as defined in claim 2, characterised in that the said elastomer is a mixture of the materials mentioned in claims 3 and 5.
8) Insert as defined in any of the preceding claims, characterised in that a plasticizer consisting in a mineral paraffin oil with concentration ranging from 0 and 40% is added to the thermoplastic materials.
9) Insert as defined in any of the preceding claims, characterised in that the said elastomer is hardened with polyethylene (LDPE, LLDPE, VLDPE, HDPE), copolymers and/or ethylene-vinyl acetate (EVA) and/or isotactic polypropylene and/or crystal or anti-shock polystyrene or other compatible hardeners with concentration from 0 to 50%.
10) Insert as defined in any of the preceding claims, characterised in that a micro-cellular expanding agent, composed of a thermoplastic polymer membrane, containing a swelling agent, generally a low molecular weight hydrocarbon, capable of producing gas in extrusion or moulding conditions, forming a microsphere with dimensions from 20 to 300 microns, is added to the said elastomer.
11) Insert as defined in claim 10, characterised in that the said expander comprises an agent, in master or powder form, that can expand in the temperature range suitable to material extrusion or moulding, it being provided that the expander has a concentration ranging from 0 to 20%.
12) Insert as defined in claim 10, characterised in that the expander is a chemical product that decomposes in working conditions, generating gases that remain trapped in the finished product, thus reducing the product density. 13) Insert as defined in claim 10, characterised in that the said expander is a mixture of the expanders mentioned in claims 11 and 12. 14) Insert as defined in claim 1 , characterised in that the said thermoplastic material is combined with a reticulating agent during production, to originate a completely or partially vulcanized product, in normal working conditions. 15) Insert as defined in claim 14, characterised in that the said agent is of radicalic nature also in combination with vinyl xylan aids of known type.
16) Insert as defined in the preceding claims, characterised in that it is composed of a compound with hardness 70 shore A, with the following composition: - 100 parts of syndiotactic polybutadiene 1-2 (type RB 830 by Japan
Synthetic Rubber, or equivalent).
-10 parts of LLDPE (type LL 6201 XR by EXXON Mobil, or equivalent).
-25 parts of SEBS (type KG 1652 by KRATON, or equivalent)
- 15 parts of plastifying oil (Celtis 902 by AGIP or equivalent). - 7 part of micro-cellular master (092 MB 120 by AKZO Nobel or equivalent, including in powder form).
17) Insert as defined in claims 1 to 15, characterised in that it is composed of two layers:
High hardness layer, to be positioned in the area adjacent to the rim. -100 parts of syndiotactic polybutadiene 1 -2 (type RB 840 by JSR). -20 parts of LLDPE. -20 parts of SEBS type KG 1652 (KRATON). -20 parts of mineral oil type Celtis 902.
-7 parts of micro-cellular expanding agent.
Hardness of expanded material is 70 shore A
Low hardness layer placed in contact with tyre and adjacent to ground. -25 parts of syndiotactic polybutadiene 1-2.
-45 parts of SBS (type 161 B by Polimeri Europa or equivalent).
-50 parts of SEBS type KG1652.
-80 parts of mineral oil type Celtis 902 (AGIP or equivalent).
-4 parts of micro-cellular expanding master, only when an expanded product is desired.
Hardness 40 shore A.
PCT/IT2005/000770 2005-08-03 2005-12-28 Thermoplastic moulded insert designed to completely fill the inner tube of tyres for bicycles, motorcycles and light vehicles WO2007015278A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMC2005A000078 2005-08-03
IT000078A ITMC20050078A1 (en) 2005-08-03 2005-08-03 ELASTOMERIC MATERIAL SUITABLE FOR THE PRODUCTION OF REPLACEMENT BARS OF AIRBUSES FOR CYCLES, MOTORCYCLES AND LIGHT VEHICLES

Publications (1)

Publication Number Publication Date
WO2007015278A1 true WO2007015278A1 (en) 2007-02-08

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Country Status (3)

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CN (1) CN1891745A (en)
IT (1) ITMC20050078A1 (en)
WO (1) WO2007015278A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017113220A (en) * 2015-12-24 2017-06-29 ブリヂストンスポーツ株式会社 Resin composition for golf ball and golf ball
US10792956B2 (en) 2013-03-15 2020-10-06 Bridgestone Americas Tire Operations, Llc Light-weight inner tube and related methods

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101112851B (en) * 2007-08-10 2011-04-20 王守谦 Anti-pricking anti-shrinking inflaming-retarding solid tyre and method for making the same
CN102993620A (en) * 2012-12-12 2013-03-27 天长市兴泰精细化工厂 High-molecular rubber material and preparation method thereof

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3915774A (en) * 1974-02-04 1975-10-28 Goodyear Tire & Rubber Method of building a non-deflatable tire
GB2013143A (en) * 1978-01-25 1979-08-08 Uniroyal Inc Run-Flat Tire and Wheel Assembly
EP0441552A2 (en) * 1990-02-05 1991-08-14 Sumitomo Rubber Industries Limited Tyre and rim assembly for motorcycles
US5753365A (en) * 1991-06-07 1998-05-19 Bridgestone Corporation Rubber composition and all season type pneumatic tires made from a rubber composition
US5840632A (en) * 1996-09-30 1998-11-24 Hitech Polymers Inc. Removal of organic contaminants using polymeric sheets, films, strands and filaments
US20010042580A1 (en) * 2000-02-04 2001-11-22 Bridgestone Corporation Tires
EP1241219A1 (en) * 2001-03-13 2002-09-18 The Goodyear Tire & Rubber Company Pneumatic tire having a rubber component containing a rubber gel, a syndiotactic 1,2-Polybutadiene and an olefinically unsaturated rubber
WO2003095538A1 (en) * 2002-04-19 2003-11-20 Advanced Elastomer Systems, L.P. Soft chemically foamed thermoplastic vulcanizate for sealing application by robotic extrusion
EP1375197A1 (en) * 2001-03-21 2004-01-02 Bridgestone Corporation Assembly of tire and rim
EP1449868A1 (en) * 2003-02-19 2004-08-25 Nitto Denko Corporation Composition for polyolefin resin foam and foam thereof, and method for producing foam

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3915774A (en) * 1974-02-04 1975-10-28 Goodyear Tire & Rubber Method of building a non-deflatable tire
GB2013143A (en) * 1978-01-25 1979-08-08 Uniroyal Inc Run-Flat Tire and Wheel Assembly
EP0441552A2 (en) * 1990-02-05 1991-08-14 Sumitomo Rubber Industries Limited Tyre and rim assembly for motorcycles
US5753365A (en) * 1991-06-07 1998-05-19 Bridgestone Corporation Rubber composition and all season type pneumatic tires made from a rubber composition
US5840632A (en) * 1996-09-30 1998-11-24 Hitech Polymers Inc. Removal of organic contaminants using polymeric sheets, films, strands and filaments
US20010042580A1 (en) * 2000-02-04 2001-11-22 Bridgestone Corporation Tires
EP1241219A1 (en) * 2001-03-13 2002-09-18 The Goodyear Tire & Rubber Company Pneumatic tire having a rubber component containing a rubber gel, a syndiotactic 1,2-Polybutadiene and an olefinically unsaturated rubber
EP1375197A1 (en) * 2001-03-21 2004-01-02 Bridgestone Corporation Assembly of tire and rim
WO2003095538A1 (en) * 2002-04-19 2003-11-20 Advanced Elastomer Systems, L.P. Soft chemically foamed thermoplastic vulcanizate for sealing application by robotic extrusion
EP1449868A1 (en) * 2003-02-19 2004-08-25 Nitto Denko Corporation Composition for polyolefin resin foam and foam thereof, and method for producing foam

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10792956B2 (en) 2013-03-15 2020-10-06 Bridgestone Americas Tire Operations, Llc Light-weight inner tube and related methods
US11667154B2 (en) 2013-03-15 2023-06-06 Bridgestone Americas Tire Operations, Llc Light-weight inner tube and related methods
JP2017113220A (en) * 2015-12-24 2017-06-29 ブリヂストンスポーツ株式会社 Resin composition for golf ball and golf ball

Also Published As

Publication number Publication date
ITMC20050078A1 (en) 2005-11-02
CN1891745A (en) 2007-01-10

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