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Phosgard, a new way to improve poison resistance in three-way catalyst applications

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • B01J-023/00
  • B01J-008/02
  • B01D-053/56
  • B01D-053/94
  • C01B-021/00
  • C01B-023/00
  • C01B-025/00
  • C01B-031/00
  • C01B-033/00
  • C01B-035/00
  • C01G-028/00
  • C01G-030/00
출원번호 UP-0504247 (2006-08-14)
등록번호 US-7749472 (2010-07-26)
발명자 / 주소
  • Chen, Shau-Lin Franklin
  • Wassermann, Knut
  • Sakakibara, Jin
출원인 / 주소
  • BASF Corporation
대리인 / 주소
    Loeb, Bronwen M.
인용정보 피인용 횟수 : 49  인용 특허 : 43

초록

The present invention provides for novel poisoning-resistant catalysts used for automobile exhaust gas treatment systems. To alleviate the detrimental affects of engine oil and/or fuel additive poisoning the present invention provides for an overcoat layer comprising a porous refractory oxide and on

대표청구항

What is claimed is: 1. An automobile exhaust gas treatment catalyst consisting of: (a) a substrate coated with at least two washcoat layers containing one or more precious metal components, wherein at least one washcoat layer optionally comprises an oxygen storage component; and (b) an overcoat lay

이 특허에 인용된 특허 (43)

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이 특허를 인용한 특허 (49)

  1. Bailey, Owen Herman; Hedgecock, Matthew; Schuetze, Frank-Walter; Woerz, Anke, Architectural diesel oxidation catalyst for enhanced NO2 generator.
  2. Arnold, Mirko; Kotrel, Stefan; Siani, Attilio; Siemund, Stephan; Schmitz, Thomas; Rabe, Burkhard; Gramiccioni, Gary A; Seel, Oliver; Neubauer, Torsten; Wassermann, Knut, Automotive catalyst composites having a two-metal layer.
  3. Hatfield, Randal L.; Golden, Stephen J.; Ngo, Johnny T., Base metal activated rhodium coatings for catalysts in three-way catalyst (TWC) applications.
  4. Li, Yuejin, CSF with low platinum/palladium ratios.
  5. Nochi, Katsumi; Yonemura, Masanao; Obayashi, Yoshiaki; Nakamura, Hitoshi, Catalyst for treating exhaust gases, method for producing the same, and method for treating exhaust gases.
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  9. Harada, Koichiro; Suzuki, Kenji; Okamoto, Kenji; Yamada, Hiroshi; Tamani, Akihide, Catalyst-supported particulate filter.
  10. Harada, Koichiro; Suzuki, Kenji; Okamoto, Kenji; Yamada, Hiroshi; Tamani, Akihide, Catalyst-supported particulate filter.
  11. Addiego, William Peter, Catalysts on substrates and methods for providing the same.
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  44. Hatfield, Randal L.; Lee, Edward J.; Ngo, Johnny T.; Golden, Stephen J., Three-way catalyst systems including Fe-activated Rh and Ba-Pd material compositions.
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