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    • 3. 发明申请
    • CATALYST-CARRIER SUPPORTING MATERIAL AND CATALYTIC CONVERTER
    • 催化剂载体辅助材料和催化转化器
    • WO2007117934A2
    • 2007-10-18
    • PCT/US2007/064673
    • 2007-03-22
    • 3M INNOVATIVE PROPERTIES COMPANYHONDA MOTOR COMPANY LIMITEDSAKO, KenjiKIMURA, Munekazu
    • SAKO, KenjiKIMURA, Munekazu
    • F01N3/28F01N7/14
    • F01N3/2864F01N3/2857F01N13/14
    • A catalyst-carrier supporting material of a catalytic converter excellent in heat resistance and capable of maintaining a sufficient holding capability for supporting the catalyst-carrier for a long duration even in the environments exceeding 950oC. The catalyst-carrier supporting material comprising: a heat resistant layer which contains crystalline alumina fibers and an organic binder evenly impregnated with the crystalline alumina fibers and to be eliminated by thermal decomposition; and a thermally intumescent layer layered on the heat resistant layer which contains crystalline alumina fibers, an organic binder dispersed in the crystalline alumina fibers and to be eliminated by thermal decomposition, and vermiculite dispersed in the crystalline alumina fibers, wherein the crystalline alumina fibers exist in an amount of 1,400 g/m2 or higher in the catalyst-carrier supporting material, the ratio of the amount of the crystalline alumina fibers existing in the heat resistant layer and the amount of the crystalline alumina fibers existing in the thermally intumescent layer is 0.98 to 1.98, and the vermiculite exists in an amount of 23 to 33% by weight in the thermally intumescent layer.
    • 催化转化器的催化剂载体支撑材料,其耐热性优异,并且即使在超过950℃的环境下也能够保持足够的保持能力以长时间支撑催化剂载体。 该催化剂载体负载材料包括:含有结晶氧化铝纤维和有机粘合剂的耐热层,所述有机粘合剂均匀地浸渍结晶氧化铝纤维并通过热分解除去; 以及热膨胀层,所述热膨胀层层叠在含有结晶氧化铝纤维,分散在结晶氧化铝纤维中并通过热分解而消除的有机粘合剂和分散在结晶氧化铝纤维中的蛭石的耐热层上,其中结晶氧化铝纤维存在于 催化剂载体载体材料中的1,400g / m 2或更高的量,耐热层中存在的结晶氧化铝纤维的量与热膨胀层中存在的结晶氧化铝纤维的量之比为0.98至 1.98,蛭石在热膨胀层中的含量为23至33重量%。