BREAKER RUBBER, PNEUMATIC TIRE, AND METHOD OF EVALUATING FUEL ECONOMY OF VULCANIZATE

• Main Authors: IMOTO YOJI, KOTANI MARINA, SAKAGUCHI YUMI, NAGAE AKINORI, YAMADA HIROAKI, HATTORI TAKAYUKI
• Format: Patent
• Language: English; Japanese
• Published: 21.12.2017
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; DEVICES OR ARRANGEMENTS RELATED TO TYRES; GENERAL PROCESSES OF COMPOUNDING; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; REPAIRING, OR CONNECTING VALVES TO, INFLATABLE ELASTIC BODIESIN GENERAL; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; TYRE CHANGING OR REPAIRING; TYRE INFLATION; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; VEHICLE TYRES; VEHICLES IN GENERAL; WORKING-UP

PROBLEM TO BE SOLVED: To provide a breaker rubber that is superior in durability (heat aging characteristics) and fuel economy (improved fuel efficiency); a pneumatic tire using the same; and a method of evaluating the fuel economy of vulcanizate.SOLUTION: Provided is a breaker rubber in which an amount of free sulfur included in rubber is 0.001-0.300 mass%.SELECTED DRAWING: None 【課題】耐久性（熱老化特性）、低燃費性（特に、低燃費性）に優れたブレーカーゴム、及びこれを用いた空気入りタイヤを提供する。また、加硫ゴムの低燃費性を評価する方法も提供する。【解決手段】ゴム中に含まれるフリーサルファー量が０．００１〜０．３００質量％であるブレーカーゴムに関する。【選択図】なし