KR0161572B1 - Rubber composition for balancing tire - Google Patents

Rubber composition for balancing tire Download PDF

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Publication number
KR0161572B1
KR0161572B1 KR1019950028922A KR19950028922A KR0161572B1 KR 0161572 B1 KR0161572 B1 KR 0161572B1 KR 1019950028922 A KR1019950028922 A KR 1019950028922A KR 19950028922 A KR19950028922 A KR 19950028922A KR 0161572 B1 KR0161572 B1 KR 0161572B1
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South Korea
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weight
parts
rubber
rubber composition
repair
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KR1019950028922A
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Korean (ko)
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KR970015647A (en
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정승현
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홍건희
한국타이어제조주식회사
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    • 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
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/02—Elements
    • C08K3/04—Carbon
    • 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
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L45/00—Compositions of homopolymers or copolymers of compounds having no unsaturated aliphatic radicals in side chain, and having one or more carbon-to-carbon double bonds in a carbocyclic or in a heterocyclic ring system; Compositions of derivatives of such polymers
    • C08L45/02—Compositions of homopolymers or copolymers of compounds having no unsaturated aliphatic radicals in side chain, and having one or more carbon-to-carbon double bonds in a carbocyclic or in a heterocyclic ring system; Compositions of derivatives of such polymers of coumarone-indene polymers
    • 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
    • C08K2003/2265—Oxides; Hydroxides of metals of iron
    • 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
    • C08K2003/2296—Oxides; Hydroxides of metals of zinc

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

본 발명은 종래의 타이어 밸런스 수리용 고무조성물의 문제점인 유해성을 해결하기 위해 천연고무 100 중량부에 대하여, 산화아연 300 내지 600 중량부, 산화철 300 내지 600 중량부, 카본블랙 20 내지 50 중량부, 쿠마론 인렌 수지 10 내지 30 중량부 및 BTX함량이 5중량% 이하인 고무용 용제 500 내지 800 중량부를 사용하여 고무 조성물을 제조함으로써 밸런스 수리용 고무 조성물로서 적합한 물성을 갖고 인체 유해성 및 환경오염 유발이 감소한 타이어 밸런스 수리용 고무 조성물에 관한 것이다.The present invention is 300 to 600 parts by weight of zinc oxide, 300 to 600 parts by weight of iron oxide, 20 to 50 parts by weight of carbon black to 100 parts by weight of natural rubber in order to solve the hazards of the conventional rubber balance repair rubber composition, By preparing a rubber composition using 10 to 30 parts by weight of the coumarone inrene resin and 500 to 800 parts by weight of a rubber solvent having a BTX content of 5% by weight or less, it has suitable physical properties as a balance repair rubber composition and reduces human harmfulness and environmental pollution. A rubber composition for tire balance repair.

Description

타이어 밸런스 수리용 고무 조성물Rubber composition for tire balance repair

본 발명은 타이어 밸런스 수리용 고무 조성물에 관한 것으로, 더욱 상세하게는 산화납과 톨루엔으로 인한 유해성을 감소시키기 위하여 산화철, 산화아연 및 BTX(벤젠, 톨루엔, 크실렌)함량이 5중량% 이하인 고무용 용제를 주성분으로 사용하여 고무 조성물을 제조함으로써 인체 유해성 및 유독 폐기물에 의한 환경오염을 감소한 타이어 밸런스 수리용 고무 조성물에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rubber composition for repairing tire balance, and more particularly, to a rubber solvent having a content of iron oxide, zinc oxide, and BTX (benzene, toluene, xylene) in an amount of 5% by weight or less in order to reduce the harmfulness caused by lead oxide and toluene. The present invention relates to a rubber composition for repairing tire balance which reduces the environmental pollution caused by human hazards and toxic wastes by preparing a rubber composition using as a main component.

완제품 타이어의 검사시 타이어의 밸런스가 맞지 않는 경우, 타이어 안쪽 표면에 타이어 밸런스 수리용 고무를 덧칠하여 밸런스를 교정하는 것을 타이어 밸런스 수리라 한다. 이러한 밸런스 수리에 사용가능한 고무 조성물은 비중이 높아야하고, 교반 작업성 및 저장 안정성이 우수해야 하며, 고무 조성물의 색이 타이어 내부의 색과 일치해야 한다.When the tires are out of balance when inspecting the finished tires, the tire balance number is referred to as coating the tire balance repair rubber on the inner surface of the tire to correct the balance. The rubber composition which can be used for such balance repair should have a high specific gravity, have good stirring workability and storage stability, and the color of the rubber composition should match the color inside the tire.

종래의 타이어 밸런스 수리에 사용했던 고무 조성물은 천연고무 100 중량부에 대하여, 산화아연 100 내지 300 중량부, 산화납 300 내지 700 중량부, 카본블랙 10 내지 20 중량부, 톨루엔 20 내지 80 중량부 및 BTX함량이 5 중량% 이하인 고무용 용제 300 내지 600 중량부를 주성분으로 사용하여 제조하였다.The rubber composition used in the conventional tire balance repair is 100 to 300 parts by weight of zinc oxide, 300 to 700 parts by weight of lead oxide, 10 to 20 parts by weight of carbon black, 20 to 80 parts by weight of toluene, and 100 parts by weight of natural rubber. It was prepared using 300 to 600 parts by weight of a rubber solvent having a BTX content of 5% by weight or less as a main component.

상기한 구성비에서 보는 바와 같이, 종래의 밸런스 수리용 고무 조성물은 유독성 중금속인 산화납을 다량 사용하고 있고, 휘발성이 강하여 두통 등을 유발하는 톨루엔을 사용하여 제조하기 때문에 타이어의 밸런스 수리 작업자에게 유해하며 유독성 폐기물을 발생시켜 환경오염을 유발하는 문제점이 있었다.As shown in the above composition ratio, the conventional rubber balance repairing composition is harmful to the balance repair worker of the tire because it is made of toluene, which uses a large amount of toxic heavy metals, and which is volatile and causes headaches. There was a problem of causing environmental pollution by generating toxic waste.

이에, 본 발명자들은 다량의 산화납과 톨루엔을 사용함으로써 발생하는 상기한 문제점을 해결하여 유해성이 적고 타이어 밸런스 수리에 적합한 물성을 갖는 고무 조성물을 제조하기 위해 예의 연구한 결과 본 발명에 이르게 되었다.Accordingly, the present inventors have made a thorough study in order to solve the above problems caused by the use of a large amount of lead oxide and toluene and to produce a rubber composition having a low risk and suitable properties for tire balance repair.

본 발명의 목적은 산화철, 산화아연 및 BTX함량이 5중량% 이하인 고무용 용제를 주성분으로 사용함으로써 유해성을 개선함과 동시에 타이어 밸런스 수리에 적합한 물성을 갖는 타이어 밸런스 수리용 고무 조성물을 제공하는 것이다.An object of the present invention is to provide a rubber composition for repairing tire balance having improved physical properties while at the same time improving the harmfulness by using a rubber solvent with iron oxide, zinc oxide and a BTX content of 5% by weight or less as a main component.

이하, 본 발명을 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in detail.

본 발명은 천연고무 100 중량부에 대하여, 산화아연 300 내지 600 중량부, 산화철 300 내지 600 중량부, 카본 블랙 20 내지 50 중량부, 쿠마론 인렌 수지 10 내지 30 중량부 및 BTX함량이 5 중량% 이하인 고무용 용제 500 내지 800 중량부로 이루어진 타이어 밸런스 수리용 고무 조성물에 관한 것이다.The present invention is based on 100 parts by weight of natural rubber, 300 to 600 parts by weight of zinc oxide, 300 to 600 parts by weight of iron oxide, 20 to 50 parts by weight of carbon black, 10 to 30 parts by weight of coumarone inrene resin and 5% by weight of BTX The present invention relates to a rubber balance repair rubber composition comprising 500 to 800 parts by weight of a rubber solvent.

이하, 본 발명을 더욱 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in more detail.

본 발명에 따른 타이어 밸런스 수리용 고무 조성물은 천연고무 100 중량부에 대하여, 충전제로서 산화아연과 산화철을 각각 300 내지 600 중량부를 사용하고, 카본 블랙 20 내지 50 중량부, 점착제로 쿠마론 인렌 수지 10 내지 30 중량부 및 5 중량% 이하의 BTX를 함유하는 고무용 용제 500 내지 800 중량부를 주성분으로하여 제조된다.The rubber composition for tire balance repair according to the present invention uses zinc oxide and iron oxide as 300 to 600 parts by weight, respectively, as a filler, based on 100 parts by weight of natural rubber, 20 to 50 parts by weight of carbon black, and the coumarone inrene resin 10 as an adhesive. It is prepared based on 500 to 800 parts by weight of a rubber solvent containing from 30 to 30 parts by weight and 5% by weight or less of BTX.

종래에 사용되었던 유독성 중금속인 산화납 대신 사용되는 산화아연과 산화철이 각각 천연고무 100 중량부에 대하여 300 중량부 이하로 사용할경우에는 수리 고무의 비중이 낮아져 수리 효과가 저하되므로 수리용 고무로서 적합하지 못하게 되는 문제점이 발생한다.When zinc oxide and iron oxide, which are used in place of the conventional toxic heavy metal lead, are used in an amount of 300 parts by weight or less with respect to 100 parts by weight of natural rubber, the specific gravity of the repair rubber is lowered and the effect of repair is lowered. There is a problem that can not be.

또한, 600 중량부 이상의 산화철과 산화아연이 사용될 경우에는 충전제의 양이 너무 많아져 교반 작업이 어렵게 된다.In addition, when 600 parts by weight or more of iron oxide and zinc oxide are used, the amount of filler becomes too large, making the stirring operation difficult.

산화철은 입자크기가 0.1 내지 2.0㎛의 등축결정인 것이 바람직한데, 만일 입자크기가 2.0㎛ 이상일 경우에는 산화철 입자가 타이어의 내부에 사용하는 튜브와 마찰이 일어나면서 튜브가 터지는 문제점이 발생한다.It is preferable that the iron oxide is an equiaxed crystal having a particle size of 0.1 to 2.0 μm. If the particle size is 2.0 μm or more, a problem occurs in that the iron oxide particles rub with the tube used inside the tire, causing the tube to burst.

또한, 본 발명에 사용되는 카본 블랙으로는 N2SA값이 70 내지 100 ㎡/g이고 DBP가 70 내지 150㎤/100g이며 착색력(Tint Strength)이 90 내지 120%인 것이 바람직하다. 카본 블랙의 사용량에 있어서 20 중량부를 미달하거나 50 중량부를 초과하게 되는 경우에는 수리 고무와 타이어의 색이 다르게 되어 도포면의 식별이 가능해지는 문제점이 발생한다.In addition, the carbon black used in the present invention preferably has an N 2 SA value of 70 to 100 m 2 / g, a DBP of 70 to 150 cm 3/100 g, and a tint strength of 90 to 120%. When the amount of the carbon black is less than 20 parts by weight or exceeds 50 parts by weight, the color of the repair rubber and the tire is different so that the identification of the coated surface may occur.

점착제로 사용하는 쿠마론 인렌 수지의 경우에 10 중량부 이하 또는 30 중량부 이상을 사용하면 조성물의 점착성이 밸런스 수리용 고무로서 적합하지 않게 된다.When 10 parts by weight or less or 30 parts by weight or more is used in the case of the coumarone inrene resin used as an adhesive, the adhesiveness of the composition is not suitable as a balance repair rubber.

BTX함량이 5 중량% 이하인 고무용 용제에 있어서 그 사용량이 500 중량부 이하일 경우에는 도포 작업이 불가능해지고 800 중량부 이상일 경우에는 저장 안정성이 저하된다.In the rubber solvent having a BTX content of 5% by weight or less, when the amount thereof is 500 parts by weight or less, the coating operation is impossible, and when it is 800 parts by weight or more, storage stability is lowered.

본 발명의 바람직한 구현예에 있어서, 타이어 밸런스 수리용 고무 조성물은, 천연고무 100 중량부에 대하여 카본 블랙 10 내지 30 중량부, 산화아연 20 내지 50 중량부, 점착제로 쿠마론 인렌 수지 5 내지 15 중량부를 넣고 반바리 믹서에서 약 1분간 교반하여 배합고무를 제조하고, 상기에서 제조한 배합고무에 쿠마론 인렌 수지 5 내지 15 중량부와 산화아연 50 내지 100 중량부를 첨가하고 반바리 믹서에서 2차 교반한 다음 8인치 오픈롤에서 배합하여 시이트화 한 후, 교반 용기에 BTX함량이 5 중량% 이하인 고무용 용제 500 내지 800 중량부를 넣고 상기에서 제조한 배합고무에 산화아연 230 내지 450 중량부와 산화철 300 내지 600 중량부, 카본 블랙 10 내지 20 중량부를 다시 첨가하고 24시간 이상 교반하여 완전히 분해시켜 제조된다.In a preferred embodiment of the present invention, the tire balance repair rubber composition is 10 to 30 parts by weight of carbon black, 20 to 50 parts by weight of zinc oxide, 5 to 15 parts by weight of the coumarone inrene resin with respect to 100 parts by weight of natural rubber To the mixture was prepared by stirring for about 1 minute in a half-barrier mixer to prepare a compounded rubber, and 5 to 15 parts by weight of coumarone inrene resin and 50 to 100 parts by weight of zinc oxide were added to the compounded rubber prepared above, followed by secondary stirring in a half-barrier mixer. Then, after blending and sheeting in an 8-inch open roll, 500 to 800 parts by weight of a rubber solvent having a BTX content of 5 wt% or less was added to a stirring vessel, and 230 to 450 parts by weight of zinc oxide and 300 parts of iron oxide were added to the prepared rubber. To 600 parts by weight, 10 to 20 parts by weight of carbon black is added again and stirred for at least 24 hours to prepare a complete decomposition.

상기한 바와 같이, 본 발명은 종래 방법에서 사용했던 산화납과 톨루엔 대신에 산화철과 산화아연 및 BTX함량이 5 중량% 이하인 고무용 용제를 주성분으로 사용하여 타이어 밸런스 수리용 고무 조성물을 제조함으로써 종래의 타이어 밸런스 수리용 고무 조성물의 문제점인 유해성을 제외시켰다.As described above, the present invention manufactures a rubber composition for tire balance repair by using, as a main component, a rubber solvent having iron oxide, zinc oxide and a BTX content of 5 wt% or less instead of lead oxide and toluene used in the conventional method. The hazard which is a problem of the rubber composition for tire balance repair was excluded.

따라서, 본 발명의 고무 조성물은 밸런스 수리용 고무로서의 물성을 만족하면서 밸런스 수리 작업자의 인체 안전성을 도모하고 환경오염의 유발을 줄이는 효과가 있다.Therefore, the rubber composition of the present invention has the effect of improving the human safety of the balance repair worker and reducing the occurrence of environmental pollution while satisfying the physical properties as the rubber for balance repair.

Claims (3)

천연고무 100 중량부에 대하여 산화아연 300 내지 600 중량부, 산화철 300 내지 600 중량부, 카본 블랙 20 내지 50 중량부, 쿠마론 인렌 수지 10 내지 30 중량부 및 BTX(벤젠, 톨루엔, 크실렌)함량이 5 중량% 이하인 고무용제 500 내지 800 중량부로 이루어진 것을 특징으로 하는 타이어 밸런스 수리용 고무 조성물.300 to 600 parts by weight of zinc oxide, 300 to 600 parts by weight of iron oxide, 20 to 50 parts by weight of carbon black, 10 to 30 parts by weight of coumarone inene resin and BTX (benzene, toluene, xylene) content with respect to 100 parts by weight of natural rubber Rubber composition for tire balance repair, characterized in that consisting of 500 to 800 parts by weight of a rubber solvent of 5% by weight or less. 제1항에 있어서, 카본 블랙은 N2SA값이 70 내지 100㎡/g, DBP가 70 내지 150㎤/100g, 착색력이 90 내지 120%인 것을 특징으로 하는 타이어 밸런스 수리용 고무 조성물.The rubber composition for tire balance repair according to claim 1, wherein the carbon black has an N 2 SA value of 70 to 100 m 2 / g, a DBP of 70 to 150 cm 3/100 g, and a coloring power of 90 to 120%. 제1항에 있어서, 산화철은 입자크기가 0.1 내지 2.0㎛인 것을 특징으로 하는 타이어 밸런스 수리용 고무 조성물.The rubber composition for repairing tire balance according to claim 1, wherein the iron oxide has a particle size of 0.1 to 2.0 µm.
KR1019950028922A 1995-09-05 1995-09-05 Rubber composition for balancing tire KR0161572B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101038872B1 (en) * 2010-11-22 2011-06-02 이권섭 Making method for weight balance
KR20180119787A (en) 2017-04-26 2018-11-05 피씨케이(주) Rubber Compound For Balance Weight

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100317523B1 (en) * 1999-02-19 2001-12-22 신형인 Black Paint Composition for Tire Repair Rubber

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101038872B1 (en) * 2010-11-22 2011-06-02 이권섭 Making method for weight balance
KR20180119787A (en) 2017-04-26 2018-11-05 피씨케이(주) Rubber Compound For Balance Weight

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