PROBLEM TO BE SOLVED: To provide an addition-curing type silicone rubber composition for air bag.SOLUTION: An addition-curing type silicone rubber composition contains (A) organopolysiloxane containing two or more alkenyl groups in one molecule of 100 pts.mass, (B) cyclic organohydrogenpolysiloxane, where a content of polysiloxane of m=2 represented by formula (1) is 50 mol% or more with respect to the whole amount of the component (B), and (C) organohydrogenpolysiloxane containing two or more silicon atom bond hydrogen atoms in one molecule represented by formula (2), where the number of the silicon atom bond hydrogen atoms in the components (B) and (C) is 1 to 7 pieces per one silicon atom bond alkenyl group in the component (A) and the number of the silicon atom bond hydrogen atoms in the component (B) is 1-30% with respect to the number of the silicon atom bond hydrogen atoms of the components (B) and (C), (D) fine powder silica having a BET method specific area of 50 m/g or more of 0.1-50 pts.mass, and (E) an addition reaction catalyst of an effective amount.SELECTED DRAWING: None
【課題】エアーバッグ用付加硬化型シリコーンゴム組成物を提供する。【解決手段】(A)1分子中に2個以上のアルケニル基含有オルガノポリシロキサン:100質量部、(B)式(1)で示され、m=2のポリシロキサン含有量が(B)成分全体量に対して50モル%以上である環状オルガノハイドロジェンポリシロキサン、(C)式(2)で示される1分子中に2個以上のケイ素原子結合水素原子含有オルガノハイドロジェンポリシロキサン:(B)及び(C)成分中のケイ素原子結合水素原子数が、(A)成分中のケイ素原子結合アルケニル基1個当たり1〜7個で、かつ(B)成分中のケイ素原子結合水素原子数が(B)及び(C)成分のケイ素原子結合水素原子数の1〜30%となる量、(D)BET法比表面積が50m2/g以上の微粉末シリカ:0.1〜50質量部、(E)付加反応触媒:有効量を含有する付加硬化型シリコーンゴム組成物。【選択図】なし
ADDITION-CURING TYPE SILICONE RUBBER COMPOSITION AND AIR BAG
付加硬化型シリコーンゴム組成物及びエアーバッグ
01.03.2018
Patent
Elektronische Ressource
Japanisch
IPC: | C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / C08K Verwendung von anorganischen oder nichtmakromolekularen organischen Stoffen als Zusatzstoffe , USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS |
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