Cordierite honeycomb-structural body and a method for producing

Details Cordierite honeycomb-structural body and a method for producing Cordierite honeycomb-structural body and a method for producing

1988-02-03

1989-09-26

Epstein, Henry F.

Stock material or miscellaneous articles

Structurally defined web or sheet

Honeycomb-like

55523, 156 89, 428188, 502527, B32B 312

Patent

active

048699446

ABSTRACT:
A cordierite honeycomb structural body to be used as a catalyst carrier, having excellent heat resistance, thermal shock resistance and coatability with a high specific surface area material and a catalyst is disclosed, which have a chemical composition consisting mainly of 42-56% by weight SiO.sub.2, 30-45% by weight of Al.sub.2 O.sub.3 and 12-16% by weight of MgO, having a crystal phase consisting mainly of cordierite, and having coefficients of thermal expansion of not higher than 0.3.times.10.sup.-6 /.degree.C. in the flow-passage direction of the honeycomb structure and not higher than 0.5.times.10.sup.-6 /.degree.C. in a direction perpendicular to the flow-passage of the honeycomb structure within the temperature range of 40.degree.-800.degree. C. A cordierite honeycomb-structural body, wherein a distribution of diameters of pores, relative to a total volume of pores having a diameter of 0.5-5 .mu.m is not less than 40% and the total volume of pores having a diameter of not smaller than 10 .mu.m is not more than 30% based on the total pore volume in the body. The body has excellent coatability and thermal shock resistance after coating.

REFERENCES:
patent: 3885977 (1975-05-01), Lachman et al.
patent: 3950175 (1976-04-01), Lachman et al.
patent: 3958058 (1976-05-01), Elmer
patent: 4177307 (1979-12-01), Torii et al.
patent: 4268311 (1981-05-01), VerDow
patent: 4280845 (1981-07-01), Matsuhisa et al.
patent: 4295892 (1981-10-01), Matsuhisa et al.
patent: 4435512 (1984-03-01), Ito et al.
patent: 4489774 (1984-12-01), Ogawa et al.
patent: 4495300 (1985-01-01), Sano
patent: 4540671 (1985-09-01), Kondo et al.
patent: 4772580 (1988-09-01), Hamanaka et al.

Affiliated with

Also associated with

Rating

Cordierite honeycomb-structural body and a method for producing does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Cordierite honeycomb-structural body and a method for producing , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cordierite honeycomb-structural body and a method for producing will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-186759