COMPOSITION FOR SEALING MATERIAL

PURPOSE:To obtain a composition for sealing materials, excellent in applicability and adhesiveness to steel sheet, by mixing a specified powdered rubber with a plasticizer or a softener and an epoxy compound. CONSTITUTION:A composition prepared by mixing 100pts.wt. powdered rubber of a particle diam...

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Bibliographic Details
Main Authors KANESHIGE YOSUKE, ARIYOSHI TAKASHI, FURUTA KAZUMI
Format Patent
LanguageEnglish
Published 16.12.1988
Subjects
ADHESIVES
CHEMISTRY
DYES
MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
PAINTS
POLISHES
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Summary:PURPOSE:To obtain a composition for sealing materials, excellent in applicability and adhesiveness to steel sheet, by mixing a specified powdered rubber with a plasticizer or a softener and an epoxy compound. CONSTITUTION:A composition prepared by mixing 100pts.wt. powdered rubber of a particle diameter <=3mm and a Mooney viscosity at 100 deg.C of 5-30 with 50-300pts.wt. plasticizer and/or softener and 3-50pts.wt. epoxy compound having at least two epoxy groups of the formula in the molecule. When the Mooney viscosity of the rubber used is above 30, it has a viscosity excessively high for a sealing material and markedly inferior in applicability. When the viscosity is below 5, it is remarkably inferior in mechanical properties as a sealing material. Unlike a conventional solvent-type sealing material, this composition, because of its solventless type, can be produced without consideration of problems about working environments, such as toxicity to the human body and a danger of explosion.
Bibliography:Application Number: JP19870144153