US Patent No: 5,370,920

Number of patents in Portfolio can not be more than 2000

Process for producing catalyst coated thermal shock resistant ceramic honeycomb structures of cordierite, mullite and corundum

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Abstract

A ceramic honeycomb structure containing SiO.sub.2, Al.sub.2 O.sub.3 and MgO primarily in the form of cordierite, mullite and corundum and having extensive microcracking provides high resistance to thermal shock, and is useful as a substrate for catalysts. Such a structure is prepared by coating a preform of glass fibers with an alumina dispersion and firing the coated preform so that the glass and alumina react to form cordierite, mullite and corundum.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
POWER SYSTEMS COMPOSITES, LLCNEWARK, DE24
DUPONT LANXIDE COMPOSITES, L.P.WILMINGTON, DE7

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Forsythe, George D Landenberg, PA 14 98
Rajendran, Giovindasamy P Newark, DE 2 21

Cited Art

Patent Info (Count) # Cites Year
 
NGK INSULATORS, LTD. (6)
4,280,845 Cordierite ceramic 57 1979
4,568,402 Method of sealing open ends of ceramic honeycomb structural body 25 1983
4,741,792 Method of manufacturing a ceramic honeycomb structural body and an extrusion die therefor 13 1986
4,810,681 Method of manufacturing dense cordierite 14 1987
4,849,275 Cordierite honeycomb structural bodies 23 1988
4,869,944 Cordierite honeycomb-structural body and a method for producing the same 62 1988
 
Allied Signal (2)
4,812,276 Stepwise formation of channel walls in honeycomb structures 48 1988
4,956,329 High surface area cordierite catalyst support structures 19 1988
 
Sermetel (2)
4,544,408 Thixotropic alumina coating compositions, parts and methods 20 1983
4,650,699 Thixotropic alumina coating compositions, parts and methods 11 1985
 
BRIDGESTONE CORPORATION (1)
4,258,099 Cordierite, alumina, silica porous ceramic bodies coated with an activated alumina layer 51 1979
 
DUPONT LANXIDE COMPOSITES, L.P. (1)
5,079,064 Thermal shock resistant ceramic honeycomb structures of cordierite, mullite and corundum 16 1990
 
HEXCEL CORPORATION (1)
5,078,818 Method for producing a fiber-reinforced ceramic honeycomb panel 25 1990
 
KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO (1)
4,435,512 Process for producing cordierite ceramic products 22 1981

Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
American Scientific Materials Technologies, L.P. (6)
5,814,164 Thin-walled, monolithic iron oxide structures made from steels, and methods for manufacturing such structures 5 1994
5,786,296 Thin-walled, monolithic iron oxide structures made from steels 5 1997
6,077,370 Thin-walled monolithic metal oxide structures made from metals, and methods for manufacturing such structures 5 1998
6,071,590 Thin-walled monolithic metal oxide structures made from metals, and methods for manufacturing such structures 0 1998
6,051,203 Thin-walled monolithic metal oxide structures made from metals, and methods for manufacturing such structures 2 1998
6,461,562 Methods of making sintered metal oxide articles 1 1999
 
NIPPON SOKEN, INC. (3)
7,223,716 Ceramic support capable of supporting a catalyst, a catalyst-ceramic body and processes for producing same 3 2000
7,358,210 Ceramic body and ceramic catalyst body 3 2002
7,723,263 Ceramic support capable of supporting a catalyst, a catalyst-ceramic body and processes for producing same 1 2006
 
CABOT CORPORATION (1)
6,667,012 Catalytic converter 7 2000