WO2016160498A1 - High performance environmentally friendly sealant composition for tire repair - Google Patents

High performance environmentally friendly sealant composition for tire repair Download PDF

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Publication number
WO2016160498A1
WO2016160498A1 PCT/US2016/023951 US2016023951W WO2016160498A1 WO 2016160498 A1 WO2016160498 A1 WO 2016160498A1 US 2016023951 W US2016023951 W US 2016023951W WO 2016160498 A1 WO2016160498 A1 WO 2016160498A1
Authority
WO
WIPO (PCT)
Prior art keywords
weight
natural rubber
puncture sealing
sealing composition
rubber latex
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/US2016/023951
Other languages
English (en)
French (fr)
Inventor
Shees N. Sulemanji
Brandt A. Haener
Bryan Douglas Smith
Martin Patrick SPINDLER
Henry Friedrich Ferdinand KLEMM
Gordon Chetosky
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.)
Illinois Tool Works Inc
Original Assignee
Illinois Tool Works Inc
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 Illinois Tool Works Inc filed Critical Illinois Tool Works Inc
Priority to CN201680020619.6A priority Critical patent/CN107873045B/zh
Priority to EP16715686.8A priority patent/EP3277487B1/en
Priority to JP2017551198A priority patent/JP6802182B2/ja
Priority to ES16715686T priority patent/ES2945535T3/es
Publication of WO2016160498A1 publication Critical patent/WO2016160498A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J107/00—Adhesives based on natural rubber
    • C09J107/02—Latex
    • 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
    • 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
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2227—Oxides; Hydroxides of metals of aluminium
    • 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
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2237—Oxides; Hydroxides of metals of titanium
    • C08K2003/2241—Titanium dioxide
    • 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
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/24—Acids; Salts thereof
    • C08K3/26—Carbonates; Bicarbonates
    • C08K2003/265—Calcium, strontium or barium carbonate
    • 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
    • C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
    • C08K2003/3045—Sulfates
    • 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
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • 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
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/24—Acids; Salts thereof
    • C08K3/26—Carbonates; Bicarbonates
    • 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
    • C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
    • 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
    • C08K5/053—Polyhydroxylic alcohols

Definitions

  • This invention is directed to an environmentally friendly sealing composition for repairing punctures in tires.
  • ethylene glycol as an antifreeze agent.
  • Antifreeze agents are needed in order for the sealants to be effective at cold winter temperatures, sometimes approaching -30°C or lower.
  • ethylene glycol is toxic to the environment.
  • U.S. Patents 7,388,041 and 7,868,061 both to Cegelski et al., disclose a puncture sealing composition that includes at least a rubber latex and an antifreeze agent.
  • the antifreeze agent can be glycerin, potassium acetate, or a solution of glycerin and potassium acetate, suitably mixed with water.
  • U.S. Patent 8,772,370 issued to Sulemanji, discloses a puncture sealing composition that includes at least a rubber latex and an aqueous antifreeze solution.
  • the aqueous antifreeze solution includes an antifreeze agent selected from the group consisting of trimethyl glycerine, dimethyl sulfoxide, and combinations thereof.
  • tire sealants While the known improved tire sealants have various advantages, they typically do not mimic the viscosity of tire sealants based on ethylene glycol, especially at very low temperatures. There is a need or desire for an environmentally friendly tire sealant composition whose viscosity profile is similar to that of tire sealants that contain ethylene glycol.
  • the present invention is directed to an improved puncture sealing agent for tire repair.
  • the puncture sealing agent includes about 25-75% by weight of a natural rubber latex and about 25-75% by weight of an aqueous antifreeze solution.
  • the natural rubber latex is suitably a highly filtered natural rubber latex that is substantially free of coagulants.
  • the aqueous antifreeze solution includes by weight of the solution, about 10-50% by weight water, about 20-60% by weight glycerin, and about 20-60% by weight propylene glycol.
  • the aqueous antifreeze solution is designed to have a viscosity profile that is similar to the viscosity of known ethylene glycol-based antifreeze solutions. By eliminating ethylene glycol, the aqueous antifreeze solution is more environmentally friendly than ethylene glycol-based antifreeze solutions. Due to the desirable viscosity profile of the aqueous antifreeze solution, the puncture sealing agent is effective at temperatures of -30°C and lower.
  • the highly filtered natural rubber latex can be filtered by passing it through a mesh filter to remove coagulants, and suitably to provide an average particle size of about 400 microns or less. This enables the environmentally friendly puncture sealing agent to be injected through a valve stem of a tire without removing the core and seal.
  • the combination of ingredients also provides a highly effective sealing of tire punctures notwithstanding the relatively low viscosity of the sealant.
  • the environmentally friendly puncture sealing composition of the invention includes about 25-75% by weight of a natural rubber latex, suitably about 30-70% by weight, or about 35-65% by weight, or about 40-60% by weight, or about 45-55% by weight.
  • the natural rubber latex should be substantially free of coagulants, and suitably has an average particle size of about 400 microns or less. This can be accomplished by preparing a highly filtered natural rubber latex by filtering the natural rubber latex through a mesh screen.
  • the mesh screen can have openings of about 300-500 microns, suitably about 400 microns. Pumping the natural rubber latex through the mesh screen places the natural rubber latex in a fine, free-flowing state that enables passage through the valve stem of a tire without removing the core and seal.
  • the highly filtered natural rubber latex can also be biodegradable.
  • the natural rubber latex can, in one embodiment, include about 55-65% by weight natural rubber, up to about 0.25% by weight ammonia, and a balance substantially of water.
  • One suitable natural rubber latex which is highly filtered as described above, is sold by Centrotrade Rubber, Inc. under the name CENTEX HF.
  • CENTEX HF has a total solid content of about 61-63% by weight, a dry natural rubber content of about 59-61% by weight, an ammonia content of about 0.60-0.80% by weight, and a balance substantially of water and is biodegradable.
  • the environmentally friendly puncture sealing composition of the invention includes about 25-75% by weight of an aqueous antifreeze solution, suitably about 30-70% by weight, or about 35-65% by weight, or about 40-60% by weight, or about 45-55% by weight.
  • the aqueous antifreeze solution includes about 10-50% by weight water, suitably about 15-35% by weight water; about 20-60% by weight glycerin, suitably about 30-45% by weight glycerin; and about 20-60% by weight propylene glycol, suitably about 30-45% by weight propylene glycol.
  • the aqueous antifreeze solution is free of ethylene glycol
  • the puncture sealing composition is free of ethylene glycol.
  • the environmentally friendly puncture sealing composition can optionally include an inorganic powder, suitably an ultra-fine inorganic powder having an average particle diameter of about 150 nanometers or less, or about 100 nanometers or less.
  • the inorganic powder can be present at up to about 5% by weight of the puncture sealing composition, suitably about 0.5-2.5% by weight.
  • Suitable inorganic powders include without limitation calcium carbonate, barium carbonate, silicon dioxide, titanium dioxide, calcium sulfate, barium sulfate, aluminum oxide, and the like.
  • the ultra-fine inorganic powder combines with the highly filtered natural rubber latex to facilitate the formation of a strong and long-lasting sealing and repair of the punctured tire. Also, because both the ultra-fine inorganic powder and the highly filtered natural rubber latex have a controlled particle size, the passage of the puncture sealing composition through the valve stem of the tire can still be accomplished without removing the core and seal.
  • An environmentally friendly puncture sealant composition was prepared by mixing the following ingredients together in the following percentages.
  • Each of the five batches was converted into a tire sealant according to the above formulation.
  • Each of the tire sealants was added to an OEM bottle used with an OEM compressor kit supplied by Illinois Tool Works Inc. for the purpose of injecting the tire sealant into a tire.
  • the bottles of tire sealant were conditioned in an oven at 70°C for 24 hours.
  • the valve of the tire was also conditioned at 70°C. In each case, the tire sealant was injected through the valve stem without removing the core and seal.
  • the puncture sealing composition can be injected through the valve stem of a tire using the same equipment and techniques that are used for conventional puncture sealing compositions that contain ethylene glycol.
  • the puncture sealing composition can be injected without removing the core and seal of the valve stem.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Sealing Material Composition (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
PCT/US2016/023951 2015-04-01 2016-03-24 High performance environmentally friendly sealant composition for tire repair Ceased WO2016160498A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CN201680020619.6A CN107873045B (zh) 2015-04-01 2016-03-24 用于修补轮胎的高性能环保密封剂组合物
EP16715686.8A EP3277487B1 (en) 2015-04-01 2016-03-24 High performance environmentally friendly sealant composition for tire repair
JP2017551198A JP6802182B2 (ja) 2015-04-01 2016-03-24 タイヤ修理用の高性能で環境に優しいシーラント組成物
ES16715686T ES2945535T3 (es) 2015-04-01 2016-03-24 Composición selladora respetuosa con el medio ambiente de alto rendimiento para la reparación de neumáticos

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US201562141377P 2015-04-01 2015-04-01
US62/141,377 2015-04-01
US15/057,015 US9963620B2 (en) 2015-04-01 2016-02-29 High performance environmentally friendly sealant composition for tire repair
US15/057,015 2016-02-29

Publications (1)

Publication Number Publication Date
WO2016160498A1 true WO2016160498A1 (en) 2016-10-06

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2016/023951 Ceased WO2016160498A1 (en) 2015-04-01 2016-03-24 High performance environmentally friendly sealant composition for tire repair

Country Status (6)

Country Link
US (1) US9963620B2 (enExample)
EP (1) EP3277487B1 (enExample)
JP (2) JP6802182B2 (enExample)
CN (1) CN107873045B (enExample)
ES (1) ES2945535T3 (enExample)
WO (1) WO2016160498A1 (enExample)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6210135B1 (ja) * 2016-06-29 2017-10-11 横浜ゴム株式会社 タイヤパンクシール剤及びタイヤパンク修理キット
CN109777322A (zh) * 2018-12-21 2019-05-21 南京斯瑞奇医疗用品有限公司 一种提高天然乳胶基胶粘剂自粘性能的方法
US11407883B2 (en) * 2020-02-03 2022-08-09 Illinois Tool Works Inc. High performing low viscosity tire sealant

Citations (3)

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US7388041B2 (en) * 2006-03-24 2008-06-17 Accessories Marketing, Inc. Puncture sealing agent for a tire, and process for producing the same
US20080306197A1 (en) * 2004-11-01 2008-12-11 Bridgestone Corporation Puncture Sealing Agent
US20140221535A1 (en) * 2013-02-06 2014-08-07 Top Alliance Technology Limited Tire Sealant and Preparation Method Thereof

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US20080306197A1 (en) * 2004-11-01 2008-12-11 Bridgestone Corporation Puncture Sealing Agent
US7388041B2 (en) * 2006-03-24 2008-06-17 Accessories Marketing, Inc. Puncture sealing agent for a tire, and process for producing the same
US20140221535A1 (en) * 2013-02-06 2014-08-07 Top Alliance Technology Limited Tire Sealant and Preparation Method Thereof

Also Published As

Publication number Publication date
CN107873045B (zh) 2021-05-25
JP6802182B2 (ja) 2020-12-16
JP2018511681A (ja) 2018-04-26
EP3277487A1 (en) 2018-02-07
JP7057405B2 (ja) 2022-04-19
JP2021042383A (ja) 2021-03-18
CN107873045A (zh) 2018-04-03
US9963620B2 (en) 2018-05-08
EP3277487B1 (en) 2023-03-15
ES2945535T3 (es) 2023-07-04
US20160289509A1 (en) 2016-10-06

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