RUBBER COMPOSITION AND PNEUMATIC TIRE

PROBLEM TO BE SOLVED: To suppress the discoloration of a rubber surface and to improve the appearance, without reducing an ozone resistance improving effect by an amine-based age inhibitor. SOLUTION: A rubber composition is obtained by blending 100 pts.wt. of a rubber component comprising a diene ru...

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Bibliographic Details
Main Authors YURI TAKASHI, HAYASHI HIROFUMI
Format Patent
LanguageEnglish
Published 18.03.2010
Subjects
CHEMISTRY
COMPOSITIONS BASED THEREON
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
DEVICES OR ARRANGEMENTS RELATED TO TYRES
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
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Summary:PROBLEM TO BE SOLVED: To suppress the discoloration of a rubber surface and to improve the appearance, without reducing an ozone resistance improving effect by an amine-based age inhibitor. SOLUTION: A rubber composition is obtained by blending 100 pts.wt. of a rubber component comprising a diene rubber with 0.5-8 pts.wt. of an amine-based age inhibitor and 0.5-8 pts.wt. of a polyphenolic compound. The polyphenolic compound is preferably selected from naturally-derived polyphenolic compounds such as lignin, flavonoid s, phenolic acids, tannin and curcuminoids. COPYRIGHT: (C)2010,JPO&INPIT
Bibliography:Application Number: JP20080227421