WO2006049171A1 - パンクシーリング剤 - Google Patents
パンクシーリング剤 Download PDFInfo
- Publication number
- WO2006049171A1 WO2006049171A1 PCT/JP2005/020111 JP2005020111W WO2006049171A1 WO 2006049171 A1 WO2006049171 A1 WO 2006049171A1 JP 2005020111 W JP2005020111 W JP 2005020111W WO 2006049171 A1 WO2006049171 A1 WO 2006049171A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- puncture
- latex
- sealing agent
- puncture sealing
- mass
- Prior art date
Links
Classifications
-
- 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
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2030/00—Pneumatic or solid tyres or parts thereof
Definitions
- the present invention relates to a puncture sealing agent used when sealing a punctured tire.
- puncture sealing agents can be obtained at the factory. These mainly comprise colloidal dispersion polymers in an aqueous medium known as latex. That is, for example, polyethylene monobutadiene latex, polyacetic acid latex, alicyclic copolymer latex, nitrile latex, acrylic nitrile monobutadiene latex, and polychloroprene latex are used. It is also known that puncture sealants contain tetrachlorethylene as a carrier medium instead of water.
- a pressure-resistant container that conventionally contains a puncture sealing agent containing liquid gas as a pressure source has been provided.
- An apparatus such as a spray can is used.
- a liquid gas a propylene butane mixed gas is mainly used.
- a fluorocarbon hydrocarbon is also used.
- One end of a hose is connected to the spray can by an outlet valve, and a screw adapter for a tire valve is attached to the other end of the hose.
- the puncture sealant When puncture occurs in a tire, the puncture sealant is sprayed into the tire via the tire valve, and the spray can force is also increased by the fuel gas at a specific pressure at different levels depending on the amount of gas leakage. The tire pressure is refilled. At this time, the tire is driven by a distance of several kilometers while applying a puncture sealant to seal the damage.
- the puncture sealing agent is stored in a compression flask connected via an adapter to a timer valve from which a valve insert has been previously extracted.
- the puncturing agent is blown into the tire by the compression action of the flask.
- the tire is re-inflated to a specific internal pressure with the help of a carbon dioxide cartridge. Is done.
- Spray cans containing propane / butane mixed gas as fuel gas depend on the mixing ratio but cannot be used satisfactorily unless the temperature is lowered to about 0 ° C.
- Propane butane gas mixture is also a flammable explosive. Fluorochrome hydrocarbons have a negative impact on the environment. Also, all known fuel gases are limited in volume when punctures occur and cannot be used for IJ.
- Patent Document 1 includes a rubber latex that is only natural rubber latex, and this natural rubber latex.
- a puncture sealing agent having a greaves-based adhesive conforming to the above, and a sealing pump-up device using the puncture sealing agent are disclosed.
- Patent Document 1 Japanese Patent Laid-Open No. 9 118779
- the present invention has been made in view of the above-described conventional problems, and an object thereof is to achieve the following object. That is,
- An object of the present invention is to provide a puncture sealing agent having excellent storage stability and good puncture hole sealing properties.
- a puncture sealant containing at least a synthetic rubber latex characterized in that the gely ratio in a Malone mechanical stability test in accordance with JIS K6387 is 0.001 to 10%. It is a puncture sealant.
- the synthetic rubber latex is at least one selected from the group consisting of SBR latex, NBR latex, MBR latex, carboxyl-modified NBR latex, and carboxyl-modified SBR latex.
- the puncture ring agent according to 1> is at least one selected from the group consisting of SBR latex, NBR latex, MBR latex, carboxyl-modified NBR latex, and carboxyl-modified SBR latex.
- ⁇ 6> The puncture according to ⁇ 4> or ⁇ 5>, further comprising 1 to 15% by mass of a rosin-based resin emulsion using a nonionic surfactant in solid content. It is a ring agent.
- the puncture sealing agent of the present invention is a puncture sealing agent containing at least a synthetic rubber latex, and has a gelation rate of 0.001 in a Malone mechanical stability test in accordance with JIS-K6387. It is characterized by ⁇ 10%.
- the puncture sealing agent of the present invention has improved puncture sealing properties because the gelation rate is 0.001 to 10%. This principle will be described below. It became clear that the puncture repair mechanism of tires using puncture sealants proceeds as follows.
- the puncture hole of the tire is repeatedly opened and closed by the rotation of the tire, and when it is closed, a large share is applied to the puncture hole wall surface.
- This phenomenon (2) is a phenomenon in which the rubber latex is given mechanical stability.
- normal rubber latex is stable due to the repulsive force between the negative charges of the emulsifier surrounding the rubber latex particles.
- the rubber latex coagulates when the particles come into contact with each other.
- the more easily a solidified product is produced due to the above phenomenon that is, the higher the puncture sealing agent with lower mechanical stability, the higher the sealing performance.
- the puncture sealant with lower mechanical stability according to the Marron mechanical stability test has a faster puncture sealing speed. That is, in the present invention, the gelling rate is 0.001 to 10%, so that the puncture sealing property is enhanced.
- the gelling ratio is a value measured under the following conditions in a Malone type mechanical stability test based on JIS-K6387.
- Amount of puncture sealant 100 (g)
- the surfactant type for example, chemical structure, molecular chain length, number of polar groups, etc.
- amount are set in order to make the gelation rate within the range of 0.01 to 10%. And adjusting the type (a chemical structure, branched chain length, acid-modified monomer type) and amount of the substituent of the latex polymer terminal modification.
- Surfactants can be ionic, cationic, or nonionic. Among these, it is preferable to use the one having eron properties.
- the cationic surfactant include alkylbenzene sulfonates such as sodium dodecylbenzene sulfonate; alkyl sulfates such as sodium lauryl sulfate and sodium tetradecyl sulfate; sodium disulfosuccinate, dehydroabietic acid rosin ester Abietic abietic acid ester salt such as sodium salt, sulfosuccinate such as sodium dihexylsulfosuccinate, fatty acid salt such as sodium laurate, semi-cured tallow fatty acid potassium; polyoxyethylene lauryl ether sulfate sodium salt, Examples thereof include ethoxy sulfate salts such as polyoxyethylene non-ether ether sulfate sodium salt; alkane sulfonate; alkyl ether
- the amount used varies depending on the latex polymerization method and the like, and is usually selected in the range of 0.2 to 5.0%, and a plurality of them may be used in combination.
- a non-ionic surfactant such as polyoxyethylene nouryl ether or polyoxyethylene sorbitan lauryl ester is used in combination as appropriate to ensure stability to antifreeze. May be.
- the force at which the gelation rate is 0.001 to 10% occurs when the gelation rate is less than 0.001% due to deformation of puncture holes during repair. There is too little latex coagulum to seal the puncture hole. On the other hand, if the gelation rate exceeds 10%, the stability of the particles becomes too low, and solidifies during long-term storage and cannot be used.
- the gelation rate is preferably 0.01 to 8%, and more preferably 0.1 to 7%.
- the viscosity of the puncture sealant is preferably 3 to 6000 mPa ⁇ s under conditions assumed as actual use conditions (60 ° C to 30 ° C! / ⁇ ).
- the viscosity may be too low and liquid leakage may occur during injection into the valve. If it exceeds 6000 mPa's, the resistance during injection may become strong and the ease of injection may decrease, and the spread to the inner surface of the tire will be sufficient and high sealing performance will not be obtained. There is.
- the viscosity can be measured with a B-type viscometer or the like.
- various latexes can be used as the synthetic rubber latex, but from the viewpoint of ensuring better sealing properties, SBR latex, NBR latex, MBR latex, BR latex, carboxyl modified It is preferable to use at least one selected from the group consisting of NBR latex and carboxyl-modified SBR latex power.
- the puncture sealing agent of the present invention preferably contains an antifreezing agent.
- the antifreezing agent is not particularly limited, and ethylene glycol, propylene glycol and the like can be used.
- the content of such an antifreezing agent is preferably 10 to 50% by mass. Is less than 10% by mass, the antifreezing property at low temperature may not be sufficiently obtained, and when it exceeds 50 mass 0/0, since the rubber latex amount, becomes large glycol amount, the puncture auxiliary Osamuji, Since the agglomerated rubber latex particles are present in a dispersed state in Daricol, sufficient sealing characteristics may not be obtained.
- the puncture sealing agent of the present invention may contain water for dilution.
- the puncture sealing agent of the present invention preferably contains a rosin emulsion in order to improve the sealing performance.
- rosin-based emulsions include those using plant-derived rosins (for example, rosin ester ester terpenes, tall oil ester terpenes, terpene terpenol terpene terpenes, etc.), modified phenolic terephthalates, petroleum terephthalates.
- the thing using synthetic resins, such as fat can be used.
- emulsion using rosin-based resin or phenol-based resin can be preferably used because it has a large strength improvement effect.
- rosin-based emulsions are preferably those using a nonionic surfactant as a demulcent in terms of stability.
- a nonionic surfactant such as sodium bicarbonate
- the emulsion becomes unstable due to the mixing of the cryoprotectant and the emulsion is broken.
- the resin emulsion or phenol resin emulsion is a solid content, preferably 1 to 15% by mass, more preferably 2 to 12% by mass, and more preferably 3 to 9% by mass. Is preferable. If it is less than 1% by mass, the above effect cannot be obtained sufficiently. Over 15% by mass If so, the amount of sallow increases too much and the rubber becomes hard, so the puncture seal cannot follow the tire and the sealing performance deteriorates.
- the puncture sealing agent of the present invention further preferably contains 5 to 40% by mass of unmodified SBR, more preferably 8 to 35% by mass, and more preferably 10 to 30% by mass. Good. When the content of unmodified SBR is 5% by mass or less, the sealing performance is low and a sufficient sealing effect cannot be obtained. On the other hand, if the amount exceeds 40% by mass, the stability will deteriorate and the gel will immediately go away.
- a known method can be applied. That is, first, a container filled with a puncture sealing agent is inserted into the valve opening of the tire and an appropriate amount is injected. Then rotate the tire so that the puncture sealant spreads inside the tire and seals the puncture holes.
- the puncture sealing agent of the present invention can be applied to puncture repair of various pneumatic tires. Examples thereof include automobile tires, motorcycle tires, unicycle tires, wheelchair tires, vehicle tires used for farmland work and garden work.
- the puncture sealing agent of the present invention as described above can be re-inflated by being introduced into the tire using various pump-up devices, for example, spray cans containing a propane / butane mixed gas as a fuel gas. .
- Example 1 Example 2
- Example 3 Example 4 Comparative Example Comparative Example Comparative Example 2 Comparative Example 3 Comparative Example 4 Latex Species Modified SBR SB BR SBR NBR SBR SBR SBR Solid content (mass 3 ⁇ 4) 23 20 20 40 20 40 40 40 Antifreeze Formulation PG PG PG PG EG PG PG PG Antifreeze agent (% by mass) 40 45 40 45 40 20 45 45 Water (% by weight) 37 35 40 35 40 20 35 35 Malone test gelation stability (%) 5 t.10 6.7 to.o 0.0005 25 0.0009 10.5 Punk sealability o OO ⁇ ⁇ O Preservability ⁇ ⁇ O ⁇ ⁇ O
- Example "10 Examples” ⁇ Example 1 2
- Example 1 3 Comparative Example 5
- Comparative Example 6 Latex type SBR SBR SBR SBR SBR SB Solid content (mass) 20 20 20 20 20 20 20 20 20 End modification -Cal ' ⁇ ' xy modification
- Drill holes of ⁇ 2.6mm were drilled in 195Z65R15 tires, 450ml of the prepared puncture sealant was injected, the tire pressure was increased to 0.2MPa, and it was mounted on the car. After that, the car was driven at 60km Zh or less.
- ⁇ in the case where the internal pressure drop is 0 and fully cured within 3 km
- ⁇ in the case where the internal pressure drop is 0 and completely cured after 5 km travel
- ⁇ in the case where the internal pressure drop is 0 and complete cure after 10 km or more
- the internal pressure was evaluated as X when it was judged that there was an air leak from the repaired part. The results are shown in Tables 1 to 3.
- the produced puncture sealant was stored for 60 days at an ambient temperature of 80 ° C. After storage, the presence of gelled product was visually observed, and the case where gelled product was not present was evaluated as ⁇ , and the case where gelled product was present was evaluated as X. The results are shown in Tables 1 to 3.
- Example 7 exceeding the preferred content of the resin emulsion and Example 9 containing no resin emulsion were slightly inferior to the other examples in terms of puncture sealing.
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/577,801 US7745524B2 (en) | 2004-11-01 | 2005-11-01 | Puncture sealing agent |
EP05805467.7A EP1826255B1 (en) | 2004-11-01 | 2005-11-01 | Puncture sealing agent |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004-318085 | 2004-11-01 | ||
JP2004318085 | 2004-11-01 | ||
JP2005184541A JP5500755B2 (ja) | 2004-11-01 | 2005-06-24 | パンクシーリング剤 |
JP2005-184541 | 2005-06-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006049171A1 true WO2006049171A1 (ja) | 2006-05-11 |
Family
ID=36319176
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/020111 WO2006049171A1 (ja) | 2004-11-01 | 2005-11-01 | パンクシーリング剤 |
Country Status (4)
Country | Link |
---|---|
US (1) | US7745524B2 (ja) |
EP (1) | EP1826255B1 (ja) |
JP (1) | JP5500755B2 (ja) |
WO (1) | WO2006049171A1 (ja) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008149898A1 (ja) * | 2007-06-05 | 2008-12-11 | Bridgestone Corporation | パンクシーリング剤 |
WO2008149899A1 (ja) * | 2007-06-05 | 2008-12-11 | Bridgestone Corporation | パンクシーリング剤 |
JP2012082237A (ja) * | 2010-10-06 | 2012-04-26 | Bridgestone Corp | パンクシーリング剤 |
WO2014003028A1 (ja) * | 2012-06-27 | 2014-01-03 | 住友ゴム工業株式会社 | パンクシーリング剤 |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008142967A1 (ja) * | 2007-05-10 | 2008-11-27 | Bridgestone Corporation | パンクシーリング剤 |
JP2010260904A (ja) * | 2009-04-30 | 2010-11-18 | Bridgestone Corp | パンクシーリング剤 |
JP4609598B1 (ja) | 2009-06-22 | 2011-01-12 | 横浜ゴム株式会社 | タイヤパンクシール材 |
KR101272554B1 (ko) * | 2011-11-15 | 2013-06-11 | 현대자동차주식회사 | 도포성이 우수한 타이어 보수용 실런트 조성물 |
US9963620B2 (en) * | 2015-04-01 | 2018-05-08 | Illinois Tool Works Inc. | High performance environmentally friendly sealant composition for tire repair |
US9862156B2 (en) * | 2015-04-23 | 2018-01-09 | Illinois Tool Works, Inc. | Environmentally friendly aerosolized latex tire sealant |
JP2016216615A (ja) * | 2015-05-21 | 2016-12-22 | 株式会社ブリヂストン | パンクシーリング剤 |
WO2016182517A1 (en) | 2015-06-29 | 2016-11-17 | Arikan Kri̇ko Ve Maki̇na Sanayi̇ Ti̇caret Anoni̇m Şi̇rketi̇ | A tyre repair kit liquid and production method of said liquid |
WO2018008722A1 (ja) * | 2016-07-08 | 2018-01-11 | 株式会社ブリヂストン | パンクシーリング剤 |
Citations (2)
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JP2001062934A (ja) * | 1999-08-31 | 2001-03-13 | Yokohama Rubber Co Ltd:The | タイヤパンク修理剤 |
JP2004035867A (ja) * | 2002-07-08 | 2004-02-05 | Sumitomo Rubber Ind Ltd | タイヤのパンクシーリング剤 |
Family Cites Families (11)
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JPS5134163B2 (ja) * | 1973-12-28 | 1976-09-24 | ||
SU863602A1 (ru) * | 1979-07-06 | 1981-09-15 | Омский завод синтетического каучука | Композици на основе синтетического латекса |
US4501825A (en) * | 1984-06-28 | 1985-02-26 | Pennzoil Company | Tire sealer and inflator |
JPS6445686A (en) * | 1987-08-17 | 1989-02-20 | Mitsui Toatsu Chemicals | Aqueous suspension and preparation thereof |
DE19549592C5 (de) | 1995-07-11 | 2006-12-14 | Sumitomo Rubber Industries Ltd., Kobe | Vorrichtung zum Abdichten und Aufpumpen von Reifen bei Pannen |
JP3751729B2 (ja) * | 1996-12-04 | 2006-03-01 | 住友ゴム工業株式会社 | パンクシーリング剤 |
DE19652546B4 (de) * | 1996-12-17 | 2012-11-22 | Sumitomo Rubber Industries Ltd. | Mittel zum Abdichten von Reifen bei Pannen, Vorrichtungen zum Abdichten und Aufpumpen von Reifen und Reifen mit integriertem Abdichtmittel |
JP4255160B2 (ja) * | 1999-03-25 | 2009-04-15 | 住友ゴム工業株式会社 | タイヤのパンクシーリング剤 |
JP2000309254A (ja) * | 1999-04-26 | 2000-11-07 | Sumitomo Rubber Ind Ltd | タイヤのシール・ポンプアップ装置 |
JP2003147016A (ja) * | 2001-11-09 | 2003-05-21 | Nippon Zeon Co Ltd | 重合体ラテックスの残留モノマー除去方法 |
EP1566424B1 (en) * | 2002-11-27 | 2018-09-19 | Bridgestone Corporation | Puncture-sealing agent |
-
2005
- 2005-06-24 JP JP2005184541A patent/JP5500755B2/ja active Active
- 2005-11-01 US US11/577,801 patent/US7745524B2/en active Active
- 2005-11-01 WO PCT/JP2005/020111 patent/WO2006049171A1/ja active Application Filing
- 2005-11-01 EP EP05805467.7A patent/EP1826255B1/en active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001062934A (ja) * | 1999-08-31 | 2001-03-13 | Yokohama Rubber Co Ltd:The | タイヤパンク修理剤 |
JP2004035867A (ja) * | 2002-07-08 | 2004-02-05 | Sumitomo Rubber Ind Ltd | タイヤのパンクシーリング剤 |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008149898A1 (ja) * | 2007-06-05 | 2008-12-11 | Bridgestone Corporation | パンクシーリング剤 |
WO2008149899A1 (ja) * | 2007-06-05 | 2008-12-11 | Bridgestone Corporation | パンクシーリング剤 |
JP2012082237A (ja) * | 2010-10-06 | 2012-04-26 | Bridgestone Corp | パンクシーリング剤 |
WO2014003028A1 (ja) * | 2012-06-27 | 2014-01-03 | 住友ゴム工業株式会社 | パンクシーリング剤 |
US9617442B2 (en) | 2012-06-27 | 2017-04-11 | Sumitomo Rubber Industries, Ltd. | Puncture sealing agent |
Also Published As
Publication number | Publication date |
---|---|
JP5500755B2 (ja) | 2014-05-21 |
JP2006152239A (ja) | 2006-06-15 |
US7745524B2 (en) | 2010-06-29 |
EP1826255A4 (en) | 2012-05-09 |
EP1826255B1 (en) | 2014-05-21 |
EP1826255A1 (en) | 2007-08-29 |
US20080306197A1 (en) | 2008-12-11 |
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