KR0180106B1 - Rubber composition for inner liner of a tire - Google Patents
Rubber composition for inner liner of a tire Download PDFInfo
- Publication number
- KR0180106B1 KR0180106B1 KR1019960050538A KR19960050538A KR0180106B1 KR 0180106 B1 KR0180106 B1 KR 0180106B1 KR 1019960050538 A KR1019960050538 A KR 1019960050538A KR 19960050538 A KR19960050538 A KR 19960050538A KR 0180106 B1 KR0180106 B1 KR 0180106B1
- Authority
- KR
- South Korea
- Prior art keywords
- rubber composition
- rubber
- inner liner
- parts
- weight
- Prior art date
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Classifications
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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
- C08L15/00—Compositions of rubber derivatives
- C08L15/02—Rubber derivatives containing halogen
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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
- 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
- C08L23/18—Homopolymers or copolymers of hydrocarbons having four or more carbon atoms
- C08L23/20—Homopolymers or copolymers of hydrocarbons having four or more carbon atoms having four to nine carbon atoms
- C08L23/22—Copolymers of isobutene; Butyl rubber ; Homo- or copolymers of other iso-olefins
Abstract
본 발명은 타이어용 인너라이너용 고무조성물에 있어서, 할로겐화 부틸고무 0 내지 90중량부에 이소부틸렌/p-메틸스티렌 10 내지 100중량부를 기재 고무로 사용하고, 통상의 첨가제를 첨가하는 것으로 이루어지는 특징으로 하는 타이어용 인너라이너용 고무조성물이다.The present invention is a rubber composition for the inner liner for tires, wherein 10 to 100 parts by weight of isobutylene / p-methylstyrene is used as the base rubber and 0 to 90 parts by weight of a halogenated butyl rubber, and a conventional additive is added. A rubber composition for inner liner for tires.
본 발명에 의한 인너라이너용 고무조성물은 인장강도, 신장율 공기투과상수 및 크랙 성장 기울기의 물성이 우수한 것으로 나타났다.The rubber composition for the inner liner according to the present invention was found to have excellent physical properties of tensile strength, elongation rate air permeability and crack growth gradient.
Description
본 발명은 타이어의 인너라이너(inner liner)용 고무조성물에 관한 것으로, 더욱 상세하게는 브롬화된 이소부틸렌/p-메틸스티렌(이하, IB/PMS라고도 함) 코폴리머를 단독 또는 할로겐화 부틸고무와 브롬화된 이소부틸렌/p-메틸스티렌 코폴리머를 배합한 고무조성물을 타이어의 인너라이너용 고무조성물로 사용하는 것에 관한 것이다.The present invention relates to rubber compositions for inner liners of tires, and more particularly to brominated isobutylene / p-methylstyrene (hereinafter referred to as IB / PMS) copolymers alone or with halogenated butyl rubber. A rubber composition comprising a brominated isobutylene / p-methylstyrene copolymer is used as a rubber composition for an inner liner of a tire.
일반적으로 튜브리스(tubeless) 타이어의 인너라이너용 고무조성물로는 천연고무와 할로겐화 부틸고무를 일정 비율로 배합하여 사용하고 있거나, 할로겐화 부틸 고무를 단독으로 사용하고 있다. 이와 같은 종래의 타이어의 인너라이너용 할로겐화부틸 고무는 내공기 투과성, 내오존성 및 내열성 등은 양호한 수준이지만, 가교밀도가 낮고, 카본블랙과의 친화력이 저조한 문제점이 있다.In general, as the inner liner rubber composition of a tubeless tire, natural rubber and halogenated butyl rubber are used in combination at a predetermined ratio, or halogenated butyl rubber is used alone. The halogenated butyl rubber for innerliner of such a conventional tire has good air permeability, ozone resistance and heat resistance, but has a low crosslinking density and poor affinity with carbon black.
따라서, 본 발명에서는 할로겐화 부틸고무보다 가교밀도가 높고, 카본블랙과의 친화력이 우수한 고무 조성물을 구성함으로써 열 노화 후의 인장강도와 신장율이 높은 수준이며, 내크랙성 및 내 공기투과성이 향상된 타이어의 인너라이너용 고무조성물을 제공하는 것을 과제로 한다.Therefore, in the present invention, by forming a rubber composition having a higher crosslinking density than halogenated butyl rubber and excellent affinity with carbon black, the tensile strength and elongation after heat aging are high, and the inner and inner parts of the tire have improved crack resistance and air permeability. It is a problem to provide a rubber composition for liner.
이하, 본 발명은 하기 구성에 의해 실현된다.Hereinafter, the present invention is realized by the following configuration.
즉, 본 발명은 타이어의 인너라이너용 고무조성물에 있어서, 할로겐화 부틸고무 0 내지 90중량부에 이소부틸렌/p-메틸스티렌 10 내지 100중량부를 기재 고무로 사용하고, 통상의 첨가제를 첨가하는 것으로 이루어지는 특징으로 하는 타이어의 인너라이너용 고무조성물이다.That is, in the rubber composition for the inner liner of a tire, the present invention uses 10 to 100 parts by weight of isobutylene / p-methylstyrene as the base rubber and adds an ordinary additive to 0 to 90 parts by weight of the halogenated butyl rubber. A rubber composition for an inner liner of a tire which is characterized by being made.
이하, 본 발명을 더욱 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in more detail.
본 발명의 타이어의 고무조성물은 할로겐화 부틸고무 0 내지 90중량부에 이소부틸렌/p-메틸스티렌 10 내지 100중량부를 기재 고무로 사용한다. 상기에서 이소부틸렌/p-메틸스티렌을 10중량부 이하로 사용하는 경우에는 가류후 얻어지게 되는 인너라이너용 고무 조성물의 노화 후 고무 조성물의 인장강도 및 신장율이 감소하게 된다. 또한, 사용하게 되는 IB/PMS 고무는 브롬(bromine)의 함량이 0.72 내지 0.9몰%인 고무를 사용한다.The rubber composition of the tire of the present invention uses 10 to 100 parts by weight of isobutylene / p-methylstyrene as the base rubber in 0 to 90 parts by weight of halogenated butyl rubber. When isobutylene / p-methylstyrene is used in an amount of 10 parts by weight or less, the tensile strength and elongation of the rubber composition after aging of the rubber composition for innerliner obtained after vulcanization decrease. In addition, the IB / PMS rubber to be used uses a rubber having a bromine content of 0.72 to 0.9 mol%.
본 발명에서는 상기 고무 조성물 100중량부에 대하여, 통상의 첨가제가 사용되며, 이와 같은 첨가제로는 질소 흡착 표면적이 30 내지 120㎡/g, DBP 흡유량이 60 내지 120㎡/100g인 카본 블랙을 40 내지 80중량부, 방향족계와 탄화수소계 수지의 혼합물 5 내지 20중량부, C5 탄화수소게 수지 내지 10중량부, 오일 2 내지 10중량부, 촉진제 0.5 내지 5중량부, 산화아연 1 내지 5중량부, 황 0.1 내지 3중량부를 사용한다.In the present invention, a conventional additive is used with respect to 100 parts by weight of the rubber composition, and as such an additive, 40 to 40 carbon blacks having a nitrogen adsorption surface area of 30 to 120 m 2 / g and a DBP oil absorption of 60 to 120 m 2/100 g 80 parts by weight, 5-20 parts by weight of a mixture of aromatic and hydrocarbon resins, 10 parts by weight of C5 hydrocarbon crab resin, 2-10 parts by weight of oil, 0.5-5 parts by weight of accelerator, 1-5 parts by weight of zinc oxide, sulfur 0.1 to 3 parts by weight is used.
이하, 실시예로 본 발명을 더욱 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in more detail with reference to Examples.
[실시예]EXAMPLE
[실시예 1 내지 4][Examples 1 to 4]
다음 표 1에 나타난 고무와 첨가를 사용하여 가류 전 고무시트를 제조하였고, 이렇게 얻어진 고무시트를 170℃에서 15분간 가류하였다. 노화 조건을 100℃에서 4주일 노화 후 상기 실시예 1내지 4으로 제조된 고무 조성물의 인장강도, 신장율, 공기투과상수 및 크랙(crack) 성장 기울기를 측정하여 다음 표1에 기재하였다.Next, the rubber sheet was prepared before vulcanization using the rubber and the additives shown in Table 1, and the rubber sheet thus obtained was vulcanized at 170 ° C. for 15 minutes. The aging conditions were measured in tensile strength, elongation, air permeability and crack growth slope of the rubber composition prepared in Examples 1 to 4 after 4 weeks of aging at 100 ° C., and are shown in Table 1 below.
[비교예 1]Comparative Example 1
IB/PMS를 사용하지 않고, 할로겐화 부틸 고무만을 사용하여 기재고무로 한것을 제외하고는 상기 실시예 1과 동일하게 실시하였다. 상기 비교에 1에 의해 제조된 고무조성물의 인장강도, 신장율, 공기투과상수 및 크랙 성장 기울기를 측정하여 다음 표1에 기재하였다.The same procedure as in Example 1 was carried out except that no base rubber was used without using IB / PMS and only halogenated butyl rubber was used. The tensile strength, elongation rate, air permeability, and crack growth slope of the rubber composition prepared in 1 above were measured and described in Table 1 below.
상기 각 실시예의 고무조성물의 인장강도, 신장율 공기투과상수 및 크랙 성장 기울기의 측정결과에서 나타난 바와 같이 비교예의 측정결과보다 우수한 것으로 나타났다.As shown in the measurement results of the tensile strength, the elongation rate air permeability constant and the crack growth slope of the rubber composition of each example, it was shown to be superior to the measurement results of the comparative example.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019960050538A KR0180106B1 (en) | 1996-10-31 | 1996-10-31 | Rubber composition for inner liner of a tire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019960050538A KR0180106B1 (en) | 1996-10-31 | 1996-10-31 | Rubber composition for inner liner of a tire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR19980031031A KR19980031031A (en) | 1998-07-25 |
| KR0180106B1 true KR0180106B1 (en) | 1999-05-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019960050538A KR0180106B1 (en) | 1996-10-31 | 1996-10-31 | Rubber composition for inner liner of a tire |
Country Status (1)
| Country | Link |
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| KR (1) | KR0180106B1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100415163B1 (en) * | 2001-04-10 | 2004-01-16 | 금호타이어 주식회사 | Rubber Composition for Repairing Tire with Optium Scorch |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030090283A (en) * | 2002-05-22 | 2003-11-28 | 한국타이어 주식회사 | Tire bladder rubber composition |
-
1996
- 1996-10-31 KR KR1019960050538A patent/KR0180106B1/en not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100415163B1 (en) * | 2001-04-10 | 2004-01-16 | 금호타이어 주식회사 | Rubber Composition for Repairing Tire with Optium Scorch |
Also Published As
| Publication number | Publication date |
|---|---|
| KR19980031031A (en) | 1998-07-25 |
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