SILICONE COMPOSITION FOR VIBRATION CONTROL DAMPER, VISCOUS FLUID FOR VIBRATION CONTROL DAMPER, AND VIBRATION CONTROL DAMPER USING ANY ONE OF THEM

• Main Authors: YAMAMOTO MASAHIRO, ADACHI DAIGO, IINUMA REINA, HAYAZAKI YASUYUKI, SUZUKI SATOSHI, MURATANI KEIICHI
• Format: Patent
• Language: English; Japanese
• Published: 14.10.2022
• Subjects: ADHESIVES; BLASTING; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; DYES; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; MEANS FOR DAMPING VIBRATION; MECHANICAL ENGINEERING; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; POLISHES; SHOCK-ABSORBERS; SPRINGS; THEIR PREPARATION OR CHEMICAL WORKING-UP; THERMAL INSULATION IN GENERAL; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; WEAPONS

To provide a silicone composition for a vibration control damper, a viscous fluid for a vibration control damper, and a vibration control damper using any one of the same, which are less in viscosity variation due to temperature change, can develop high attenuation with a small amount even under a high temperature environment, and furthermore are excellent in work efficiency.SOLUTION: A silicone composition for a vibration control damper contains the following components (B) to (D) with the following component (A) as a main component, a content ratio of the component (B) relative to 100 pts.wt. of the component (A) is 0.00003 to 0.003 pt.wt., and a ratio (M1: M2) of the number of moles (M1) of vinyl groups of the component (A) and the number of moles (M2) of the hydrosilyl groups of the component (D) is controlled to be 1: 0.5 to 1: 4. (A): vinyl group-modified silicone having vinyl groups at both ends of a molecular chain. (B): platinum catalyst. (C): retardants. (D): chain extender.SELECTED DRAWING: None 【課題】温度変化による粘度変化が少なく、高温環境下であっても少量で高減衰を発現することができ、さらに施工性にも優れる、制振ダンパー用シリコーン組成物、制振ダンパー用粘性流体、およびそれらを用いた制振ダンパーを提供する。【解決手段】下記の（Ａ）成分を主成分とし下記の（Ｂ）～（Ｄ）成分を含有するとともに、下記の（Ａ）成分１００重量部に対する下記の（Ｂ）成分の含有割合が０．００００３～０．００３重量部であり、かつ下記の（Ａ）成分のビニル基のモル数（Ｍ1）と下記の（Ｄ）成分のヒドロシリル基のモル数（Ｍ2）との比（Ｍ1：Ｍ2）が１：０．５～１：４となるよう調製された制振ダンパー用シリコーン組成物によって、課題を解決する。（Ａ）分子鎖の両末端にビニル基を有する、ビニル基変性シリコーン。（Ｂ）白金触媒。（Ｃ）遅延剤。（Ｄ）鎖延長剤。【選択図】なし