Nichias Corporation

Tadashi Sakane

Hiroki Nakamura

Kiyoshi Sato

Nobuya Tomosue

Kazutoshi Isomura

Junya Satoh

Hiroshi Makabe

A retention material for a gas processing device including a processing structure and a casing for accommodating the processing structure, the retention material including inorganic fibers and being arranged between the processing structure and the casing, wherein in a test of repeating a cycle of compressing the retention material until a bulk density of the retention material becomes a prescribed compression bulk density, followed by retaining for 10 seconds, and then releasing until a bulk density of the retention material becomes a release bulk density that is smaller by 12% of said prescribed compression bulk density; a release surface pressure of the retention material after repeating the cycle 2500 times and the compression bulk density of the retention material satisfies the relationship, P&#x2265;17.10&#xd7;D&#x2212;1.62 wherein P is the release surface pressure (N/cm) and D is the compression bulk density (g/cm).

Retention material for gas processing device

Provided are a holding material for a gas treatment device, which is inexpensive, has a simple structure, and exhibits high holding force, a gas treatment device, and a method for manufacturing the same. A holding material for a gas treatment device according to the present invention is a holding material, which is a holding material to be arranged, in a gas treatment device including a treatment structure and a casing for housing the treatment structure, between the treatment structure and the casing, the holding material including silica fibers and an alumina sol in an amount of 3 parts by mass or more in terms of a solid content with respect to 100 parts by mass of the silica fibers.

Holding material for gas treatment device, gas treatment device, and production processes therefor

A gas processing device is disclosed that makes it possible to appropriately control the frictional resistance between a holding mat and a casing. A gas processing device () includes a processing structure (), a casing () made of a metal and housing the processing structure (), and a holding mat () formed of inorganic fibers and placed between the processing structure () and the casing (), an inner surface () of the casing () and an outer surface () of the holding mat () coming in contact with each other through an adhesive layer () that includes a compound that includes a structural unit represented by a general formula (I). wherein Rare independently a hydrogen atom, an alkyl group having 1 to 5 carbon atoms, an alkoxy group having 1 to 5 carbon atoms, a phenyl group, or a hydroxyl group, and n is an integer equal to or larger than 1.

Retainer for gas processing device, gas processing device, and manufacturing methods therefor

A catalytic converter holding mat that is inexpensive, and exhibits an excellent heat insulation capability is provided by utilizing an inexpensive heat insulating material that exhibits an excellent heat insulation capability. The catalytic converter holding mat is provided in a gap between a tubular catalyst carrier and a casing that houses the catalyst carrier, and includes a retaining section that is formed of first inorganic fibers having a thermal shrinkage ratio at 1000&#xb0; C. of 1% or less, and an insulation section that is disposed adjacent to the retaining section, and formed of second inorganic fibers having a thermal shrinkage ratio at 1000&#xb0; C. of more than 1%.

Catalytic converter holding material

A holding material for a catalytic converter including a catalyst carrier having an elliptical cross section, a metal casing for receiving the catalyst carrier, and the holding material mounted on the catalyst carrier and interposed in a gap between the catalyst carrier and the metal casing, in which the holding material has a first portion and a second portion, and the first portion in contact with a region of the catalyst carrier, corresponding to 40 to 95% of a major axis centering on an intersection of an ellipse and a minor axis in the elliptical cross section of the catalyst carrier, is larger than the second portion in contact with any other region of the catalyst carrier in basis weight.

Holding material for catalytic converter, method for producing the same, and catalytic converter

The present invention relates to a holding material for a catalytic converter including a catalyst carrier, a metal casing for receiving the catalyst carrier, and the holding material wound around the catalyst carrier and interposed in a gap between the catalyst carrier and the metal casing, in which the holding material includes an inorganic fiber substrate and a viscoelastic layer formed at least on a casing side surface of the inorganic fiber substrate and having a Young's modulus at 25&#xb0; C. of 0.3 MPa or less.

Holding material for catalytic converter

The present invention relates to a holding material for a catalytic converter including a catalyst carrier, a metal casing for receiving the catalyst carrier, and the holding material wound around the catalyst carrier and interposed in a gap between the catalyst carrier and the metal casing, the holding material including a low thermal conductivity layer, in which the low thermal conductivity layer includes: a molded material containing an inorganic powder; or a composite material of a porous substrate with an aerogel.

Growing community of inventors

Tokyo, Japan

Tadashi Sakane