Rubber composition for seismic isolation rubber laminate and seismic isolation rubber laminate
JP7630702B1Active Publication Date: 2025-02-17SUMITOMO RIKO CO LTD
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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Figure 0007630702000001_ABST
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