WO2012085869A1 - Sealing composition for repairing tyres - Google Patents
Sealing composition for repairing tyres Download PDFInfo
- Publication number
- WO2012085869A1 WO2012085869A1 PCT/IB2011/055878 IB2011055878W WO2012085869A1 WO 2012085869 A1 WO2012085869 A1 WO 2012085869A1 IB 2011055878 W IB2011055878 W IB 2011055878W WO 2012085869 A1 WO2012085869 A1 WO 2012085869A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- sealing composition
- composition according
- latex
- range
- sealing
- Prior art date
Links
Classifications
-
- 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
- C08K5/04—Oxygen-containing compounds
- C08K5/05—Alcohols; Metal alcoholates
- C08K5/053—Polyhydroxylic alcohols
-
- 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
- B29C73/00—Repairing of articles made from plastics or substances in a plastic state, e.g. of articles shaped or produced by using techniques covered by this subclass or subclass B29D
- B29C73/16—Auto-repairing or self-sealing arrangements or agents
-
- 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
- B29C73/00—Repairing of articles made from plastics or substances in a plastic state, e.g. of articles shaped or produced by using techniques covered by this subclass or subclass B29D
- B29C73/16—Auto-repairing or self-sealing arrangements or agents
- B29C73/163—Sealing compositions or agents, e.g. combined with propellant agents
-
- 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
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/346—Clay
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
-
- 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
- C08K5/04—Oxygen-containing compounds
- C08K5/05—Alcohols; Metal alcoholates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L13/00—Compositions of rubbers containing carboxyl groups
- C08L13/02—Latex
-
- 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
- C08L21/02—Latex
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L7/00—Compositions of natural rubber
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L7/00—Compositions of natural rubber
- C08L7/02—Latex
-
- 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
- C08L9/06—Copolymers with styrene
- C08L9/08—Latex
Definitions
- the present invention relates to a sealing composition for repairing tyres.
- compositions which do not contain an adhesive agent. However, also said compositions cause obstruction of the dispenser valve.
- the object of the present invention is therefore to find a sealing composition which is stable in the long term with rubber latex particles which are not subject to phenomena of aggregation resulting in obstruction of the dispenser valve, but at the same time maintains the sealing capacity.
- Phyllosilicates are silicates characterised by a layered structure with tetrahedral symmetry in which each tetrahedron tends to bind with another three by means of oxygen bridges.
- the members of this family generally, have a lamellar or scaly appearance, with well-defined' cleavage. They are calcium, magnesium, aluminium, sodium, iron, lithium or barium silicates. They are soft minerals, with low specific gravity and the cleavage sheets can be flexible or elastic.
- the particles of phyllosilicate and silica added to the sealing composition perform both a lubricating action on the composition, reducing aggregation of the particles of natural latex and therefore facilitating its passage through the dispenser valve, and at the same time an adjuvant action during sealing of the puncture as they penetrate into the latex mixture during polymerisation, performing a mechanical reinforcement action.
- the mineral used is silica or kaolin.
- the mineral used has an average granulometric distribution in the range between 5 and 95 nm, in particular between 10 and 30 nm.
- the synthetic latex has average granulometry in the range between 0.05 and 0.3 ⁇ and has been advantageously used for the production of a sealing composition.
- Said formulation is able to considerably stabilise the sealing composition thus avoiding aggregation of the particles, while maintaining an optimal sealing power characteristic of the compositions based on natural latex.
- a diameter of the particles of synthetic latex with an average granulometric distribution in the range 0.05-0.3 ⁇ is more preferable, and even more preferably a granulometric distribution of 0.1.
- the sealing composition comprises natural latex in an amount in the range between 40 and 70%, a synthetic latex in an amount in the range between 10 and 20% and ethylene glycol in an amount in the range between 20 and 50%. More preferably the composition comprises:
- silica having a granulometric distribution in the range between 10 and 30 nm.
- the synthetic latex has a gelatinisation rate of at least 25% measured according to a mechanical stability test of the Mallon type based on JIS-K6387, more preferably greater than 50%, and is advantageously selected from the group consisting of styrene-butadiene and carboxylated styrene- butadiene.
- the sealing composition can furthermore comprise a polyurethane latex which has a further stabilising effect and is added in an amount in the range between 0.5% and 3%, preferably 1-2%.
- sealing composition can also comprise additives such as an anti-oxidant agent, preferably in an amount of 0.05-3%, more preferably 0.1-1.5%, and a stabiliser agent preferably in an amount of 0.2-3, more preferably 0.5-2%.
- additives such as an anti-oxidant agent, preferably in an amount of 0.05-3%, more preferably 0.1-1.5%, and a stabiliser agent preferably in an amount of 0.2-3, more preferably 0.5-2%.
- composition illustrated in Table 1 was produced according to the invention.
- the freezing test was performed on the three batches of the composition illustrated in example 1 to verify maintenance of the properties of the sealing composition also at low temperatures, in particular at -40°C.
- sealing composition 50 ml of sealing composition were placed in a glass beaker. The beaker was then placed in a refrigerator and kept at -40°C for 8 hours.
- the sample of sealing composition in all three batches analysed shows no signs of freezing or crystalline formations on the surface.
- the sealing power of the composition was evaluated on Ford tyres (ES8S43-19L523-AA) in which a puncture was made between the grooves with a 6 mm diameter steel nail.
- the shuttle bus was driven for 10 minutes at a minimum speed of 30 km/h and maximum speed of 80 km/h, measuring the tyre pressure to evaluate the sealing power according to the pressure loss after 3 minutes, 5 minutes and 7 minutes and verifying any leaks from the puncture made.
- the sealing composition proved capable of sealing the tyre not only at ambient temperature but also at 70°C and at -40°C even after 5 minutes. Although at low temperatures the time required to disperse the sealing composition is considerably longer, sealing nevertheless takes place within the first 5 minutes.
- Viscosity, pH and specific gravity (SpG) were evaluated on different batches of the composition illustrated in Table 4. The results are given in Table 5.
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Dispersion Chemistry (AREA)
- Sealing Material Composition (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/992,042 US9957372B2 (en) | 2010-12-21 | 2011-12-21 | Sealing composition for repairing tyres |
CN201180061926.6A CN103328560B (en) | 2010-12-21 | 2011-12-21 | Sealing compositions for full capping |
JP2013545615A JP6019035B2 (en) | 2010-12-21 | 2011-12-21 | Sealing composition for tire repair |
KR1020137017246A KR101888709B1 (en) | 2010-12-21 | 2011-12-21 | Sealing composition for repairing tyres |
EP11815586.0A EP2655504B1 (en) | 2010-12-21 | 2011-12-21 | Sealing composition for repairing tyres |
BR112013015994A BR112013015994A2 (en) | 2010-12-21 | 2011-12-21 | tire repair sealing composition |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITTO2010A001031 | 2010-12-21 | ||
IT001031A ITTO20101031A1 (en) | 2010-12-21 | 2010-12-21 | SEALANT COMPOSITION FOR REPAIRING TIRES |
US201161434888P | 2011-01-21 | 2011-01-21 | |
US61/434,888 | 2011-01-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2012085869A1 true WO2012085869A1 (en) | 2012-06-28 |
Family
ID=43737420
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IB2011/055878 WO2012085869A1 (en) | 2010-12-21 | 2011-12-21 | Sealing composition for repairing tyres |
Country Status (8)
Country | Link |
---|---|
US (1) | US9957372B2 (en) |
EP (1) | EP2655504B1 (en) |
JP (1) | JP6019035B2 (en) |
KR (1) | KR101888709B1 (en) |
CN (1) | CN103328560B (en) |
BR (1) | BR112013015994A2 (en) |
IT (1) | ITTO20101031A1 (en) |
WO (1) | WO2012085869A1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20160168431A1 (en) * | 2014-12-12 | 2016-06-16 | Illinois Tool Works Inc. | High performance sealant composition for tire repair |
US20160289509A1 (en) * | 2015-04-01 | 2016-10-06 | Illinois Tool Works Inc. | High performance enviromentally friendly sealant composition for tire repair |
ITUA20164483A1 (en) * | 2016-06-17 | 2017-12-17 | Tek Global Srl | SEALANT COMPOSITION FOR REPAIRING TIRES |
US10174227B2 (en) | 2013-12-18 | 2019-01-08 | Top Alliance Technology Limited | Sealant composition |
EP3483232A4 (en) * | 2016-07-08 | 2019-07-03 | Bridgestone Corporation | Puncture sealant |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5664723B1 (en) * | 2013-08-09 | 2015-02-04 | 横浜ゴム株式会社 | Tire puncture sealant |
ES2786509T3 (en) * | 2013-12-18 | 2020-10-13 | Top Alliance Tech Limited | Sealant composition |
EP3245050B1 (en) * | 2015-01-16 | 2019-11-13 | Illinois Tool Works Inc. | High performance sealant composition for tire repair |
JP6510259B2 (en) * | 2015-02-13 | 2019-05-08 | 住友ゴム工業株式会社 | Puncture sealant |
CN104927141A (en) * | 2015-06-08 | 2015-09-23 | 广西柳州高昭贸易有限公司 | Processing technology of tire repair liquid |
CN104927146A (en) * | 2015-06-08 | 2015-09-23 | 广西柳州高昭贸易有限公司 | Processing method of tire repair liquid |
CN104987560A (en) * | 2015-06-08 | 2015-10-21 | 广西柳州高昭贸易有限公司 | Preparing method for tire repairing liquid |
CN104927344A (en) * | 2015-06-08 | 2015-09-23 | 广西柳州高昭贸易有限公司 | Preparation method of tire repair liquid |
CN104927342A (en) * | 2015-06-08 | 2015-09-23 | 广西柳州高昭贸易有限公司 | Blending technology of tire repair liquid |
CN104927111A (en) * | 2015-06-08 | 2015-09-23 | 广西柳州高昭贸易有限公司 | Producing technology of tire repair liquid |
CN104927493A (en) * | 2015-06-08 | 2015-09-23 | 广西柳州高昭贸易有限公司 | Preparation technology of tire repair liquid |
CN104927341A (en) * | 2015-06-08 | 2015-09-23 | 广西柳州高昭贸易有限公司 | Blending method of tire repair liquid |
CN104927144A (en) * | 2015-06-08 | 2015-09-23 | 广西柳州高昭贸易有限公司 | Blending technology of tire repair liquid |
CN104927120A (en) * | 2015-06-08 | 2015-09-23 | 广西柳州高昭贸易有限公司 | Dedicated tire repair liquid |
CN104927119A (en) * | 2015-06-08 | 2015-09-23 | 广西柳州高昭贸易有限公司 | Blending method of tire repair liquid |
CN104927343A (en) * | 2015-06-08 | 2015-09-23 | 广西柳州高昭贸易有限公司 | Formula of tire repair liquid |
CN104927143A (en) * | 2015-06-08 | 2015-09-23 | 广西柳州高昭贸易有限公司 | Tire repair liquid |
CN105860159B (en) * | 2016-06-02 | 2018-11-16 | 上海明凤汽车科技有限公司 | Memory rubber composition, preparation method and applications |
Citations (5)
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EP1291159A1 (en) * | 2001-09-11 | 2003-03-12 | Sumitomo Rubber Industries Ltd. | Puncture sealing agent for a tire, and process for producing the same |
JP2008189896A (en) * | 2007-02-08 | 2008-08-21 | Toyo Tire & Rubber Co Ltd | Rubber composition for use in steel cord adhesion, and pneumatic tire |
EP2062956A1 (en) * | 2006-09-13 | 2009-05-27 | Bridgestone Corporation | Method for producing puncture-sealing agent |
WO2009104050A1 (en) * | 2008-02-18 | 2009-08-27 | Tek Global S.R.L. | Sealing composition for tires repairing |
JP4525839B1 (en) * | 2009-06-22 | 2010-08-18 | 横浜ゴム株式会社 | Tire puncture sealant |
Family Cites Families (10)
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GB1541382A (en) * | 1976-06-07 | 1979-02-28 | Yokohama Rubber Co Ltd | Puncture sealant for a tubeless pneumatic tyre |
US5500456A (en) * | 1994-01-26 | 1996-03-19 | Snap Products, Inc. | Tire sealer and inflator |
DE19549592C5 (en) | 1995-07-11 | 2006-12-14 | Sumitomo Rubber Industries Ltd., Kobe | Device for sealing and inflating tires in the event of breakdowns |
US6176285B1 (en) * | 1996-12-17 | 2001-01-23 | Sumitomo Rubber Industries, Ltd. | Preparation for the sealing of tires with punctures, apparatus for the sealing and pumping up of tires and tires with an integrated sealing preparation |
JP4074073B2 (en) * | 2001-09-11 | 2008-04-09 | 住友ゴム工業株式会社 | Tire puncture sealant |
JP4450611B2 (en) * | 2003-12-08 | 2010-04-14 | 株式会社ブリヂストン | Puncture sealant |
JP2007056057A (en) * | 2005-08-22 | 2007-03-08 | Bridgestone Corp | Puncture-sealing agent |
JP5598326B2 (en) * | 2008-02-29 | 2014-10-01 | 日本ゼオン株式会社 | Crystalline norbornene-based ring-opening polymer hydride and molded article |
JP2010043155A (en) * | 2008-08-11 | 2010-02-25 | Yokohama Rubber Co Ltd:The | Tire puncture sealer |
JP5482402B2 (en) | 2010-04-22 | 2014-05-07 | 横浜ゴム株式会社 | Tire puncture sealant |
-
2010
- 2010-12-21 IT IT001031A patent/ITTO20101031A1/en unknown
-
2011
- 2011-12-21 EP EP11815586.0A patent/EP2655504B1/en active Active
- 2011-12-21 BR BR112013015994A patent/BR112013015994A2/en not_active IP Right Cessation
- 2011-12-21 US US13/992,042 patent/US9957372B2/en active Active
- 2011-12-21 KR KR1020137017246A patent/KR101888709B1/en active IP Right Grant
- 2011-12-21 CN CN201180061926.6A patent/CN103328560B/en active Active
- 2011-12-21 WO PCT/IB2011/055878 patent/WO2012085869A1/en active Application Filing
- 2011-12-21 JP JP2013545615A patent/JP6019035B2/en active Active
Patent Citations (5)
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EP1291159A1 (en) * | 2001-09-11 | 2003-03-12 | Sumitomo Rubber Industries Ltd. | Puncture sealing agent for a tire, and process for producing the same |
EP2062956A1 (en) * | 2006-09-13 | 2009-05-27 | Bridgestone Corporation | Method for producing puncture-sealing agent |
JP2008189896A (en) * | 2007-02-08 | 2008-08-21 | Toyo Tire & Rubber Co Ltd | Rubber composition for use in steel cord adhesion, and pneumatic tire |
WO2009104050A1 (en) * | 2008-02-18 | 2009-08-27 | Tek Global S.R.L. | Sealing composition for tires repairing |
JP4525839B1 (en) * | 2009-06-22 | 2010-08-18 | 横浜ゴム株式会社 | Tire puncture sealant |
Non-Patent Citations (2)
Title |
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DATABASE WPI Week 200868, Derwent World Patents Index; AN 2008-L61203, XP002637187 * |
DATABASE WPI Week 201057, Derwent World Patents Index; AN 2010-K53851, XP002637186 * |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10174227B2 (en) | 2013-12-18 | 2019-01-08 | Top Alliance Technology Limited | Sealant composition |
US20160168431A1 (en) * | 2014-12-12 | 2016-06-16 | Illinois Tool Works Inc. | High performance sealant composition for tire repair |
US10208231B2 (en) * | 2014-12-12 | 2019-02-19 | Illinois Tool Works, Inc. | High performance sealant composition for tire repair |
US20160289509A1 (en) * | 2015-04-01 | 2016-10-06 | Illinois Tool Works Inc. | High performance enviromentally friendly sealant composition for tire repair |
US9963620B2 (en) * | 2015-04-01 | 2018-05-08 | Illinois Tool Works Inc. | High performance environmentally friendly sealant composition for tire repair |
ITUA20164483A1 (en) * | 2016-06-17 | 2017-12-17 | Tek Global Srl | SEALANT COMPOSITION FOR REPAIRING TIRES |
WO2017216383A1 (en) * | 2016-06-17 | 2017-12-21 | Tek Global S.R.L. | Sealing composition for repairing tyres |
EP3483232A4 (en) * | 2016-07-08 | 2019-07-03 | Bridgestone Corporation | Puncture sealant |
Also Published As
Publication number | Publication date |
---|---|
JP2014505137A (en) | 2014-02-27 |
JP6019035B2 (en) | 2016-11-02 |
US9957372B2 (en) | 2018-05-01 |
KR101888709B1 (en) | 2018-08-14 |
CN103328560A (en) | 2013-09-25 |
US20130338287A1 (en) | 2013-12-19 |
EP2655504A1 (en) | 2013-10-30 |
KR20130132515A (en) | 2013-12-04 |
EP2655504B1 (en) | 2016-03-09 |
CN103328560B (en) | 2018-04-06 |
BR112013015994A2 (en) | 2017-06-20 |
ITTO20101031A1 (en) | 2012-06-22 |
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