JPS5667606A - Radial tire for passenger car - Google Patents

Radial tire for passenger car

Info

Publication number
JPS5667606A
JPS5667606A JP14373979A JP14373979A JPS5667606A JP S5667606 A JPS5667606 A JP S5667606A JP 14373979 A JP14373979 A JP 14373979A JP 14373979 A JP14373979 A JP 14373979A JP S5667606 A JPS5667606 A JP S5667606A
Authority
JP
Japan
Prior art keywords
rubber
tread
cap
base
properties
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.)
Pending
Application number
JP14373979A
Other languages
Japanese (ja)
Inventor
Tadao Kono
Hiroshi Furukawa
Kenzo Yamashita
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.)
Sumitomo Rubber Industries Ltd
Original Assignee
Sumitomo Rubber Industries Ltd
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 Sumitomo Rubber Industries Ltd filed Critical Sumitomo Rubber Industries Ltd
Priority to JP14373979A priority Critical patent/JPS5667606A/en
Publication of JPS5667606A publication Critical patent/JPS5667606A/en
Pending legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
    • Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction 

Landscapes

  • Tires In General (AREA)

Abstract

PURPOSE: To lessen the rolling resistance without adversely affecting the hard wearing properties, wet skidding properties and driving stabilities, by forming a two- layered tread from a cap tread rubber and a base tread rubber with the ratio of loss elastic moduluses of said tread rubbers in a specific range.
CONSTITUTION: The tread 5 consists of two layers of the cap tread rubber A and the base tread rubber B, and use is made of the base tread rubber B having a loss elastic modulus E" in a range of 20W80% of the loss elastic modulus E" of the cap tread rubber that is of the order of from 7W15kg/cm2. For the example, for the cap rubber A, main constituents are natural rubber, isoprene rubber, styrene-butadiene rubber, etc. and for the base rubber, main constituents are natural rubber, isoprene rubber, butadiene rubber, etc. As a result, the rolling resistance is lessened without adversely affecting the hard wearing properties, wet skidding properties and driving stabilities.
COPYRIGHT: (C)1981,JPO&Japio
JP14373979A 1979-11-05 1979-11-05 Radial tire for passenger car Pending JPS5667606A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14373979A JPS5667606A (en) 1979-11-05 1979-11-05 Radial tire for passenger car

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14373979A JPS5667606A (en) 1979-11-05 1979-11-05 Radial tire for passenger car

Publications (1)

Publication Number Publication Date
JPS5667606A true JPS5667606A (en) 1981-06-06

Family

ID=15345882

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14373979A Pending JPS5667606A (en) 1979-11-05 1979-11-05 Radial tire for passenger car

Country Status (1)

Country Link
JP (1) JPS5667606A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60255505A (en) * 1984-05-31 1985-12-17 Yokohama Rubber Co Ltd:The Pneumatic tire
KR100498014B1 (en) * 1998-12-09 2005-10-12 한국타이어 주식회사 Air type tire with improved rolling resistance performance

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60255505A (en) * 1984-05-31 1985-12-17 Yokohama Rubber Co Ltd:The Pneumatic tire
KR100498014B1 (en) * 1998-12-09 2005-10-12 한국타이어 주식회사 Air type tire with improved rolling resistance performance

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