Rubber composition for seismic isolation rubber laminate and seismic isolation rubber laminate

JP7630702B1Active Publication Date: 2025-02-17SUMITOMO RIKO CO LTD
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Patent Information

Application Number
JP2024192075
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2024-10-31
Publication Date
2025-02-17
Estimated Expiration
2044-10-31

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Abstract

To provide a rubber composition for a seismic isolation rubber laminate, which has an excellent effect of suppressing hardening phenomenon, and a seismic isolation rubber laminate. [Solution] The rubber composition for a seismic isolation rubber laminate is used in a rubber layer of the seismic isolation rubber laminate, and contains the following components (A) to (C), with the content of component (B) being 10 to 30 parts by mass per 100 parts by mass of component (A): (A) At least one of isoprene rubber and butadiene rubber (B) Plasticizer with molecular weight of 300 to 900 (C) DBP oil absorption is 100 ml / 100 g or more, iodine adsorption is 150 mg / g or more, and nitrogen adsorption specific surface area is 140 m 2 / g or more of carbon black
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Citation Information

Patent Citations

  • Rubber composition for quake-free laminate

    JP1998176083A

  • Base-isolation pivotally supporting structure

    JP1998278178A

  • Base isolation rubber laminate

    JP2002340088A

  • Seismic isolation rubber laminate

    JP4120602B2