Abstract:
An exhaust gas control catalyst for lean bum engine of the present invention contains a first metal oxide (Pr 2 O 3 , Pr 2 O 4 ) selected from a group consisting of praseodymium oxide, terbium oxide, and a combination thereof, and a second metal oxide (Nd 2 O 3 ) selected from a group consisting of lanthanum oxide, neodymium oxide, yttrium oxide and a combination thereof.
Abstract translation:本发明的稀薄发动机用排气控制催化剂含有选自氧化镨,氧化铽及其组合的第一金属氧化物(Pr 2 O 3,Pr 2 O 4)和选自下述的第二金属氧化物(Nd 2 O 3) 由氧化镧,氧化钕,氧化钇及其组合组成的组。
Abstract:
An exhaust gas purifying catalyst of the present invention includes: a first metal oxide selected from the group of praseodymium oxide, terbium oxide, and a combination thereof; a second metal oxide that is neodymium oxide; a third metal oxide that is zirconia or a combination of zirconia and ceria; and a fourth metal oxide selected from the group of lanthanum oxide, yttrium oxide, barium oxide, calcium oxide, strontium oxide, silicon oxide and a combination thereof.
Abstract:
An ionizing radiation-resistant carbonate resin composition comprising 100 parts by weight of a carbonate resin and 0.1-10 parts by weight of an organic compound having in its molecule an unsaturated carbon-carbon double bond which forms a non-bonding orbital. The composition is useful as the material of medical parts which undergo little deterioration in color tone and various properties even when irradiated with an ionizing radiation for sterilization.