JP5116247B2 - Rubber composition for tread and tire using the same - Google Patents

Rubber composition for tread and tire using the same Download PDF

Info

Publication number
JP5116247B2
JP5116247B2 JP2006090808A JP2006090808A JP5116247B2 JP 5116247 B2 JP5116247 B2 JP 5116247B2 JP 2006090808 A JP2006090808 A JP 2006090808A JP 2006090808 A JP2006090808 A JP 2006090808A JP 5116247 B2 JP5116247 B2 JP 5116247B2
Authority
JP
Japan
Prior art keywords
resin
softening point
temperature
rubber composition
softening
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.)
Active
Application number
JP2006090808A
Other languages
Japanese (ja)
Other versions
JP2007262292A (en
Inventor
英司 山中
Original Assignee
株式会社ブリヂストン
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 株式会社ブリヂストン filed Critical 株式会社ブリヂストン
Priority to JP2006090808A priority Critical patent/JP5116247B2/en
Publication of JP2007262292A publication Critical patent/JP2007262292A/en
Application granted granted Critical
Publication of JP5116247B2 publication Critical patent/JP5116247B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Description

  The present invention relates to a rubber composition for a tread and a tire using the same, and more particularly to a rubber composition for a tire tread and a tire that exhibit excellent grip performance.

  In recent years, with the improvement of automobile performance, road paving, and the development of expressway networks, there is an increasing demand for pneumatic tires with high movement performance. The higher this characteristic, the faster and more accurately and safely it is possible to travel. In particular, grip performance represented by acceleration performance and brake performance is an important required characteristic.

  Conventionally, in order to impart high grip performance to a tire, there is a method in which a rubber composition containing a styrene-butadiene copolymer rubber (SBR) having a high styrene content is used for a tread, and hysteresis loss between polymers is utilized in the grip. It was taken. However, since SBR with a high styrene content has a high glass transition temperature, when a rubber composition containing the SBR is used for a tire tread, the temperature dependence of various physical properties of the tire increases in the vicinity of the tire temperature during running. There has been a problem that the performance change of the tire with respect to the temperature change becomes large.

  Furthermore, a rubber composition highly filled with resin is applied to the tread, and the adhesion effect of the resin is applied to the grip. A rubber composition highly filled with carbon black is applied to the tread, and the hysteresis of the rubber composition is applied to the grip. A method of making use of it, a method of applying a rubber composition containing carbon black having a small particle diameter to a tread, and the like have been adopted.

  In addition, there is a method in which carbon black and a softening agent are highly filled in the rubber composition. However, when carbon black having a small particle size is blended, the dispersibility of carbon black in the rubber composition is lowered. When an object is used for a tread of a tire, the wear resistance of the tire is lowered, and it is difficult to obtain a required level of high grip characteristics.

  Furthermore, there is also a method (see Patent Document 1) for obtaining a tread rubber composition in which a performance excellent in grip properties is obtained by blending a certain amount of a terpene resin into the tread rubber composition. However, even though these methods are known, the demand for improving the grip performance by blending the resin is still high.

  By the way, it has been reported that a pneumatic tire having a rubber tread containing at least three kinds of resins having different softening points provides a tire having a tread having a high traction force. In other words, the tread temperature rises as the tire runs from the stationary state to the driving speed of the car, but a plurality of resins with different softening points are blended, and the traction force in a wide temperature range using the softening point characteristics of each resin Has been reported to increase (see Patent Document 2).

JP 2004-18760 A JP 2001-81243 A

  Therefore, the problem of the present invention is to solve the above-mentioned problems of the prior art and to exhibit excellent grip performance when used in a tire tread, particularly at the start of running and during cruising in both the low temperature region and the high temperature region. In any case, it is to provide a rubber composition for a tread that can exhibit excellent grip performance. Another object of the present invention is to provide a pneumatic tire using such a tread rubber composition and having excellent grip performance.

  In order to achieve the above object, the present invention provides a rubber composition for a tread having an excellent grip performance over a wide temperature range by blending a plurality of resins having different softening point temperatures.

That is, the present invention is a rubber composition for a tread formed by blending at least two kinds of resins with a rubber component,
The total amount of each resin in the rubber composition is 30 to 90 parts by weight with respect to 100 parts by weight of the rubber component,
The resin blended in the rubber composition includes at least one high-temperature softening resin having a softening point in the range of 120 to 180 ° C, and at least one low-temperature softening having a softening point of 80 ° C or higher and lower than 120 ° C. A resin ,
The low temperature softening resin is selected from the group consisting of terpene phenol resin, rosin modified petroleum resin, dicyclopentadiene resin, aliphatic hydrocarbon resin, alicyclic hydrocarbon resin, aromatic hydrocarbon resin, and alkylphenol formaldehyde resin. At least one,
The high temperature softening resin is at least one selected from the group consisting of terpene phenol resin, aliphatic hydrocarbon resin, alicyclic hydrocarbon resin, aromatic hydrocarbon resin, alkylphenol formaldehyde resin, and butylphenol acetylene resin,
The following formula:
[Formula 1]
Compounding index = Σ (mixing part by weight of each high-temperature softening resin × softening point temperature of the high-temperature softening resin) /
Σ (weight part of each resin x softening point temperature of the resin) x 100
The rubber composition for a tread characterized by having a compounding index represented by the formula of 40 to 95% is provided.

According to the present invention, a specific resin having a softening point in a range of 120 to 180 ° C. and a specific resin having a softening point of 80 ° C. or higher and lower than 120 ° C. are determined according to a certain mathematical formula. Provided is a rubber composition for a tread capable of exhibiting excellent grip performance in a tire both in a low temperature region and in a high temperature region, both at the start of running and during cruising, by blending in parts by weight. be able to. Moreover, the pneumatic tire which has the outstanding grip performance in the wide temperature range using this rubber composition for treads can be provided.

The present invention is described in detail below. When the present inventors compounded a plurality of resins having different softening point temperatures into the rubber composition, the total amount of the resin blended with respect to the rubber composition, the softening point temperature of the resin and the blending part by weight of the resin The effect on grip performance was investigated. Consequently, in formulating a plurality of resin in the rubber, a softening point of particular resin specific resin with a softening point of less than 80 ° C. or higher 120 ° C. which is within the range of 120 to 180 ° C., a suitable mixing ratio It was found that a tread rubber composition having excellent grip properties can be obtained by blending in (parts by weight), and the present invention has been achieved.

Therefore, the present invention is a rubber composition for tread formed by blending at least two kinds of resins with a rubber component,
The total amount of each resin in the rubber composition is 30 to 90 parts by weight with respect to 100 parts by weight of the rubber component,
The resin blended in the rubber composition includes at least one high-temperature softening resin having a softening point in the range of 120 to 180 ° C, and at least one low-temperature softening having a softening point of 80 ° C or higher and lower than 120 ° C. A resin ,
The low temperature softening resin is selected from the group consisting of terpene phenol resin, rosin modified petroleum resin, dicyclopentadiene resin, aliphatic hydrocarbon resin, alicyclic hydrocarbon resin, aromatic hydrocarbon resin, and alkylphenol formaldehyde resin. At least one,
The high temperature softening resin is at least one selected from the group consisting of terpene phenol resin, aliphatic hydrocarbon resin, alicyclic hydrocarbon resin, aromatic hydrocarbon resin, alkylphenol formaldehyde resin, and butylphenol acetylene resin,
The following formula:
[Formula 2]
Compounding index = Σ (mixing part by weight of each high-temperature softening resin × softening point temperature of the high-temperature softening resin) /
Σ (weight part of each resin x softening point temperature of the resin) x 100
The rubber composition for a tread characterized by having a compounding index represented by the formula of 40 to 95% is provided.

In the present specification, the high-temperature softening resin means a resin having a softening point in the range of 120 to 180 ° C. Examples of the high-temperature softening resin that can be used in the present invention include terpene phenol resins, aliphatic hydrocarbon resins, alicyclic hydrocarbon resins, aromatic hydrocarbon resins, alkylphenol formaldehyde resins, and butylphenol acetylene resins . Or high temperature softening resin used was may be two or more types be one kind.

In the present specification, the low-temperature softening resin means a resin having a softening point of 80 ° C. or higher and lower than 120 ° C. Examples of low-temperature softening resins that can be used in the present invention include terpene phenol resins, rosin-modified petroleum resins, dicyclopentadiene resins, aliphatic hydrocarbon resins, alicyclic hydrocarbon resins, aromatic hydrocarbon resins, and alkylphenol formaldehyde resins. it is possible. Or low-temperature softening resin used was may be two or more types be one kind.

  Specific examples of the resin include rosin-modified petroleum resin, Hyosin S from Taishamatsu Oil (softening point 105 ° C); and aromatic hydrocarbon resin C9 resin, Nippon Petrochemical's neopolymer L90 (softening point 95 ° C). , Neopolymer 120 (softening point 120 ° C), Neopolymer E130 (softening point 125 ° C), Neopolymer 140 (softening point 144 ° C), Neopolymer 170S (softening point 160 ° C), Nisseki Neoresin D-145 (softening point) 150 ° C); Tonex ESCOREZ1102 (softening point 100 ° C) for aliphatic hydrocarbon resin C5 resin, Hilettsu T500X (softening point 100 ° C) from Mitsui Chemicals; Schenectady R7521P (softening point 90 ° C) for alkylphenol formaldehyde resin, SP1068 (softening point 90 ° C), R7510PJ (softening point 100 ° C), SMD31144 (softening point 127 ° C), R7572P (softening point 128 ° C), R7578P (softening point 130 ° C), Hitachi Chemical's Hitanol 1502P (softening point 94 ° C) ); Butylphenol As acetylene resins, BASF's KORESIN (softening point 143 ° C); Stractol TS30 (softening point 30 ° C), TS50 (softening point 50 ° C), 40MSF (softening point 102 ° C), TH20 (softening point 105 ° C), TH110 (Softening point 105 ° C); Sumitomo Bakelite PR-51587 (softening point 87 ° C), PR-50235 (softening point 121 ° C) as modified phenol formaldehyde resins; Tonex ECR-260 (softening point) as dicyclopentadiene resins 100 ° C), ECR-213 (softening point 102 ° C); As alicyclic hydrocarbon resins, Nippon Zeon's Quinton 1500 (softening point 100 ° C), Quinton 1700 (softening point 100 ° C), Quinton 1525L (softening point 125) Terpene phenol resin: YS Polystar T80 (softening point 80 ° C), YS90L (softening point 90 ° C), YS Polystar T115 (softening point 115 ° C), YS Polystar U115 (softening point 115 ° C), Mighty Ace G125 (softening point 125 ° C), YS poly Star N125 (softening point 125 ° C), Mighty Ace K125 (softening point 125 ° C), YS Polystar T145 (softening point 145 ° C), YS Polystar S145 (softening point 145 ° C), Mighty Ace G150 (softening point 150 ° C), etc. Can be mentioned.

  In the present specification, the compounding index is a value obtained by multiplying the blending weight part of each high-temperature softening resin by the softening point temperature of the high-temperature softening resin (in the above formula, “the blending weight part of each high-temperature softening resin × softening of the high-temperature softening resin”). The sum of all values (represented by “point temperature”) (in the above formula, the value of “Σ (mixed weight part of each high-temperature softening resin × softening point temperature of the high-temperature softening resin)”) is the low-temperature softening. A value obtained by multiplying the blending weight part of each resin including both the resin and the high-temperature softening resin by the softening point temperature of the resin (expressed as “the blending weight part of each resin × the softening point temperature of the resin” in the above formula). The sum is obtained by adding up all the values (in the above formula, it is expressed as a percentage divided by the value of “Σ (mixed part by weight of each resin × softening point temperature of the resin)”).

  In the present specification, parts by weight mean parts by weight of each component in the composition when the weight of the rubber component contained in the rubber composition is 100.

  In this technical field, various resins are blended with a rubber composition for tires, and the softening point of the blended resin affects the physical properties of the obtained rubber composition. That is, when a resin having a high softening point is blended, the hysteresis loss increases when the temperature of the tire reaches around the softening point of the resin, whereby the energy generated in the tread is easily converted to heat, and grip grip is easily generated. This effect becomes more remarkable as the temperature of the softening point of the resin is higher, and the effect is higher at 120 to 180 ° C., more preferably 120 to 150 ° C.

In addition, this effect becomes more noticeable as the amount of the resin having a high softening point increases. However, if only a resin having a high softening point is added, the hardness at low temperature increases, and the grip at the initial stage of driving or when the environmental temperature is low. This is not preferable because the power is reduced. Therefore, in order to achieve an excellent gripping force even when the environmental temperature is low or high, and at the beginning of driving and also during cruising, a high-temperature softening resin with a softening point temperature of 120 to 180 ° C. and a softening point temperature of It is necessary to mix a low-temperature softening resin having a temperature of 80 ° C. or higher and lower than 120 ° C. at an appropriate mixing ratio.

Accordingly, the present inventors have conducted extensive studies, even softening point temperature often blended parts by weight of the specific resin of 120 to 180 ° C., the softening point at the same time blending a specific resin of less than 80 ° C. or higher 120 ° C. Thus, it was found that curing at a low temperature was suppressed, and the present invention was reached. By adopting the configuration of the present invention, the grip performance can be improved at all temperatures without sacrificing the grip force at a low temperature.

  As a result of conducting various studies in detail, the present inventors have shown that the effect exerted on the gripping force when a resin is blended with a rubber composition is “weight of resin blended portion × softening point temperature of the resin”. , “Weight of each high-temperature softened resin obtained from a resin having a softening point of 120 ° C. or higher with respect to the total value of“ weight of each resin blended x softening point temperature of the resin ”obtained from all blended resins” × When the softening point temperature and blending weight part of each resin are selected so that the percentage of the total value of the softening point temperature of the high-temperature softening resin (blending index) is at least 40% or more, the gripping power is improved. I found out.

  In addition, the present inventors have determined from each resin having a softening point of 120 ° C. or higher with respect to the total value of “the blended weight part of each resin × the softening point temperature of the resin” obtained from all the resins to be blended. The blending weight part of the high-temperature softening resin x the softening point temperature of the high-temperature softening resin "The percentage of the total value (blending index) is 95% or less at most. It has been found that when the blending part by weight of the resin is selected, curing at a low temperature is suppressed. If the blending index is greater than 95%, the hardness at low temperatures increases, and the grip strength at the initial stage of running or when the environmental temperature is low may be unfavorable.

  Furthermore, the total amount of resin blended in the rubber composition also affects the physical properties of the rubber composition. If the total amount of resin blended (total parts by weight of high-temperature softening resin and parts by weight of low-temperature softening resin) is less than 30 parts by weight, the amount of component that increases hysteresis loss is small, so the width to improve the grip is small. . On the other hand, if the total amount of the resin is more than 90 parts by weight, the hardness at low temperature is increased, and the grip strength at the beginning of running or when the environmental temperature is low may be unfavorable. Therefore, the total amount of the resin blended in the present invention is preferably in the range of 30 to 90 parts by weight.

  The rubber composition for a tread of the present invention includes, in addition to a rubber component and a resin, a filler, a plasticizer, and a compounding agent usually used in the rubber industry, such as oils, anti-aging agents, and vulcanizing agents. Vulcanization aids, vulcanization accelerators, scorch inhibitors, and the like can be appropriately selected and blended within a range that does not impair the object of the present invention. As these compounding agents, commercially available products can be suitably used. The rubber composition can be produced by blending a rubber component and a resin and various compounding agents appropriately selected as necessary, kneading, heating, extruding, and the like.

  The pneumatic tire of the present invention is characterized by using the above-described tread rubber composition as a tread rubber. Further, the pneumatic tire is particularly suitable as a tire for a high-speed competition car that emphasizes high-speed running. Since the pneumatic tire of the present invention uses the rubber composition as a tread rubber, the grip performance is particularly excellent in a wide temperature range. The pneumatic tire of the present invention is not particularly limited except that the above rubber composition is used for the tread, and can be produced according to a conventional method. Further, as the gas filled in the pneumatic tire, an inert gas such as nitrogen, argon, helium, or the like can be used in addition to normal or air whose oxygen partial pressure is adjusted.

  Hereinafter, the present invention will be described in more detail with reference to examples. However, the present invention is not limited to the following examples.

  By applying the formulation shown in Table 1 below to the tread rubber layer, a racing tire (tire size: 215 / 40R18) of each example and comparative example was prototyped.

[Table 1]
SBR * 1 100
Oil exhibition process oil 37.5
Carbon * 2 90
Stearic acid 1
Anti-aging agent 6C 1
WAX 1
Zinc flower 2.5
Accelerator DPG 0.3
Accelerator DM 2.0
Accelerator CZ 1.5
Sulfur 1.8
* 1 # 0120 (37.5% oil exhibition) made by Nippon Synthetic Rubber
* 2 Toast Carbon Co., Ltd., Seast 7H

  Each test tire obtained is attached to a competition event vehicle, run on the test course, and the test driver has three stages of driving performance, braking performance / bundle response, and controllability during steering (cross mark, Grip evaluation (warming property) at the initial stage of travel was calculated by comprehensively considering the circle and double circles. In addition, the evaluation on the fifth lap was used as a grip evaluation during cruising, and was comprehensively evaluated in three stages.

  This result is calculated from the amount of process oil of each tread rubber, the amount of resin (parts by weight), the compounding index calculated from the softening point and the parts by weight of each resin (Σ (parts by weight of each high-temperature softening resin × the high-temperature softening resin) Softening point temperature) / Σ (weight of each resin blended part × softening point temperature of the resin) × 100), dynamic storage elastic modulus (E ′) at 50 ° C., and tan δ at 100 ° C. Shown in 3,4. In Tables 2, 3 and 4, Shin-Nippon Petrochemical's Neopolymer 140 is used as the resin with a softening point of 144 ° C, Mitsui Chemicals Highlets T500X as the resin with a softening point of 100 ° C, and Yasuhara Chemical as the resin with a softening point of 80 ° C. YS polysta T80 was used respectively.

  The tan δ (100 ° C) and E '(50 ° C) of each tread rubber layer were obtained by using a spectrometer manufactured by Toyo Seiki Co., Ltd. with a sample cut out from each tread rubber layer at a width of 5 mm and a length of 20 mm. The values were measured under the conditions of 4% dynamic strain, 6% initial static strain, and a frequency of 52 Hz.

  As shown in Comparative Example 1, when only a resin having a low softening point temperature, which is a conventional technique, is blended, E ′ (50 ° C.) is lowered to become a soft blend, and the initial running grip is good, but tan δ (100 ° C.) is also good. The grip is low and the grip is not enough when cruising. In Comparative Example 3 in which only a resin having a softening point of 144 ° C. (high temperature softening resin) was blended, a high tan δ (100 ° C.) was maintained and the grip during cruising was good, but E ′ (50 ° C.) was high, The initial grip is low. In Comparative Example 2 with a slight blend of a resin with a low softening point, tan δ (100 ° C) is maintained high, and the grip during cruising is good, but E '(50 ° C) is decreasing but the degree of decrease Is small and the initial grip is low.

  On the other hand, a blending index calculated from the softening point and blending weight part of each resin according to the present invention, that is, Σ (mixing weight part of each high temperature softening resin × softening point temperature of the high temperature softening resin) / Σ (blending of each resin) Example using tire characterized in that softening point and blending weight part of each resin are selected so that a value of weight part × softening point temperature of resin) × 100% is 40 to 95%. 1 to 11 improved the cruising grip or initial grip without sacrificing the initial grip or cruising grip.

  As shown in Examples 7 to 11, as a resin having a softening point of 120 ° C. or lower, not only a resin at 80 ° C. but also a resin at 100 ° C., a compounding index calculated from the softening point and the blending weight part, that is, The value of Σ (mixed weight part of each high-temperature softened resin × softening point temperature of the high-temperature softened resin) / Σ (mixed weight part of each resin × softening point temperature of the resin) × 100% is 40 to 95%. Thus, by selecting the softening point and blending weight part of each resin, the grip or initial grip during cruising was improved without sacrificing the initial grip or grip during cruising.

  Further, as shown in Example 1, even when the total weight part of each blended resin was 30 parts by weight, there was an effect in improving the grip. Further, as shown in Example 7, even when the total weight part of each blended resin was 90 parts, it was still effective in improving the grip. Therefore, in the present invention, the total amount of the resins is preferably in the range of 30 to 90 parts by weight.

According to the present invention, a specific resin having a softening point in a range of 120 to 180 ° C. and a specific resin having a softening point of 80 ° C. or higher and lower than 120 ° C. are determined according to a certain mathematical formula. Provided is a rubber composition for a tread capable of exhibiting excellent grip performance in a tire both in a low temperature region and in a high temperature region, both at the start of running and during cruising, by blending in parts by weight. be able to. A pneumatic tire using the tread rubber composition and having excellent grip performance in a wide temperature range is particularly useful as a tire used for high-speed running.

Claims (3)

  1. A rubber composition for a tread comprising at least two kinds of resins blended with a rubber component,
    The total amount of each resin in the rubber composition is 30 to 90 parts by weight with respect to 100 parts by weight of the rubber component,
    The resin blended in the rubber composition includes at least one high-temperature softening resin having a softening point in the range of 120 to 180 ° C, and at least one low-temperature softening having a softening point of 80 ° C or higher and lower than 120 ° C. A resin ,
    The low temperature softening resin is selected from the group consisting of terpene phenol resin, rosin modified petroleum resin, dicyclopentadiene resin, aliphatic hydrocarbon resin, alicyclic hydrocarbon resin, aromatic hydrocarbon resin, and alkylphenol formaldehyde resin. At least one,
    The high temperature softening resin is at least one selected from the group consisting of terpene phenol resin, aliphatic hydrocarbon resin, alicyclic hydrocarbon resin, aromatic hydrocarbon resin, alkylphenol formaldehyde resin, and butylphenol acetylene resin,
    The following formula:
    [Formula 1]
    Compounding index = Σ (mixing part by weight of each high-temperature softening resin × softening point temperature of the high-temperature softening resin) /
    Σ (weight part of each resin x softening point temperature of the resin) x 100
    A rubber composition for a tread, wherein the compounding index represented by the formula is 40 to 95%.
  2.   The rubber composition for a tread according to claim 1, wherein a softening point of the low-temperature softening resin is in a range of 80 to 100 ° C.
  3. A pneumatic tire using the tread rubber composition according to claim 1 as a tread rubber.
JP2006090808A 2006-03-29 2006-03-29 Rubber composition for tread and tire using the same Active JP5116247B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2006090808A JP5116247B2 (en) 2006-03-29 2006-03-29 Rubber composition for tread and tire using the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006090808A JP5116247B2 (en) 2006-03-29 2006-03-29 Rubber composition for tread and tire using the same

Publications (2)

Publication Number Publication Date
JP2007262292A JP2007262292A (en) 2007-10-11
JP5116247B2 true JP5116247B2 (en) 2013-01-09

Family

ID=38635580

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2006090808A Active JP5116247B2 (en) 2006-03-29 2006-03-29 Rubber composition for tread and tire using the same

Country Status (1)

Country Link
JP (1) JP5116247B2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5334234B2 (en) * 2007-02-27 2013-11-06 株式会社ブリヂストン Rubber composition and pneumatic tire using the same
CN101990558B (en) 2008-04-07 2015-07-08 株式会社普利司通 Rubber composition for tire and tire
JP5305297B2 (en) * 2009-11-05 2013-10-02 北川工業株式会社 Damping resin composition
KR101302393B1 (en) 2010-11-24 2013-09-02 한국타이어월드와이드 주식회사 Rubber composition for tire tread and tire tread
FR2968006B1 (en) 2010-11-26 2012-12-21 Michelin Soc Tech Tire tread tire
JP5559234B2 (en) * 2011-08-09 2014-07-23 住友ゴム工業株式会社 Rubber composition for tire and pneumatic tire

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3130995B2 (en) * 1992-02-05 2001-01-31 株式会社ブリヂストン Tread rubber composition
JP4343310B2 (en) * 1999-03-11 2009-10-14 株式会社ブリヂストン Rubber composition and pneumatic tire using the same
US6221953B1 (en) * 1999-08-10 2001-04-24 The Goodyear Tire & Rubber Company Tire with tread which contains spatially-defined resins

Also Published As

Publication number Publication date
JP2007262292A (en) 2007-10-11

Similar Documents

Publication Publication Date Title
EP2733170B1 (en) Tire rubber composition and containing combination of resin and vegetable oil
JP5650690B2 (en) Rubber composition for tread and pneumatic tire
JP5559234B2 (en) Rubber composition for tire and pneumatic tire
CA2803883C (en) Tire tread for high performance tires
US4224197A (en) Rubber composition for tire tread
DE60218446T2 (en) Rubber composition for tires
JP6367991B2 (en) Rubber composition and tire
CA1168794A (en) Rubber composition for tire
US4485205A (en) Rubber compositions suitable for tires comprising amorphous styrene-butadiene copolymer
DE102010039105B4 (en) A rubber composition for use in tire treads and use of the rubber composition in a tread of a pneumatic tire
EP1690895B1 (en) Rubber composition and tire having tread comprising thereof
JP5965051B2 (en) Tire tread for improved wear characteristics
CA1341112C (en) Tire with tread of selective rubber blend
JP5873558B2 (en) Tire tread
US5591279A (en) Pneumatic vehicle tire
EP2103650B1 (en) Rubber composition and tire using the same
EP1808456B1 (en) Rubber composition and tire
JP5529008B2 (en) Rubber composition for tire and tire
JP4943491B2 (en) Rubber composition for studless tire and studless tire
KR100368340B1 (en) Tires with treads of elastomeric composition
US9441098B1 (en) Tire with tread for low temperature performance and wet traction
CN107207793B (en) Method for tire tread with functionalized rubber
KR20160052786A (en) Tire tread with improved snow/dry traction
JP5291858B2 (en) Rubber composition and pneumatic tire using the same
JP3286423B2 (en) Rubber composition for base tread and tire using the same

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20090312

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20120213

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20120221

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20120418

RD03 Notification of appointment of power of attorney

Free format text: JAPANESE INTERMEDIATE CODE: A7423

Effective date: 20120418

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20120918

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20121016

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

Ref document number: 5116247

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20151026

Year of fee payment: 3

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250