Nichias Corporation

Minato-ku, Japan

Nichias Corporation

Minato-ku, Japan

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Patent
Nichias Corporation | Date: 2017-05-03

A sound proof material here disclosed comprises an exterior material layer 8 including a holding material 3 made of a woven fabric and a skin material 2 made of a thermoplastic resin film, and a sound absorbing material layer 9, the exterior material layer 8 being laminated on the sound absorbing material layer 9 so that the skin material 2 is located on the surface side of the sound proof material, whereby the sound proof material can endure long-time use without deterioration in moldability under inhibition of aging in severe operating environments so that the sound proof material can be suitably used while suppressing sound from a sound source around an engine installed in an engine compartment of an automobile.


A holding material (3) includes a stack of a first mat (3A) and a second mat (3B), the first mat (3A) including alumina fibers that include 60 wt% or more of alumina and 40 wt% or less of silica, and the second mat (3B) including silica fibers that include 60 wt% or more of silica and 40 wt% or less of alumina and having a surface pressure higher than that of the first mat as measured at a gap bulk density of 0.30 g/cm^(3).


Patent
Nichias Corporation | Date: 2017-05-03

A coating agent includes a polyurethane and a hydrocarbon-based synthetic wax.


Patent
Nichias Corporation | Date: 2017-05-17

Inorganic fibers including the following composition, SiO_(2), Al_(2)O_(3), MgO and CaO being main components, and the inorganic fibers being produced by a melting method: SiO_(2): 3.0 wt% or more and less than 48.0 wt%, Al_(2)O_(3): more than 20.0 wt% and 80.0 wt% or less, MgO: 1.0 wt% or more and 50.0 wt% or less, CaO: 1.0 wt% or more and 50.0 wt% or less, and Fe_(2)O_(3): 0.0 wt% or more and less than 1.0 wt%.


Patent
Nichias Corporation | Date: 2017-06-14

Inorganic fibers including the following composition, SiO_(2), MgO and CaO being main components: SiO_(2): 73.6 wt% to 85.9 wt%, MgO: 9.0 wt% to 21.3 wt%, CaO: 5.1 wt% to 12.4 wt%, Al_(2)O_(3): 0 wt% or more and less than 2.3 wt%, and Fe_(2)O_(3): 0 wt% to 0.50 wt%.


Provide is a heat-resistant roll with improved effectively characteristics, a production method thereof, and a method of producing sheet glass using the heat-resistant roll. A method of producing a heat-resistant roll equipped with a roll portion containing 5% by weight or more of clay includes: a grinding step (S101) of grinding a roll surface of the roll portion; and a surface treatment step (S102) of performing surface treatment of smoothening the ground roll surface in a wet state.


Patent
Nichias Corporation | Date: 2017-07-19

A heat insulation material includes a laminate obtained by stacking fiber layers that include heat-resistant fibers, the fiber layers being bound with a thermosetting resin, wherein the laminate does not include a thermoplastic resin that has a heat-resistant temperature lower than that of the thermosetting resin, or includes only a small amount of a thermoplastic resin that has a heat-resistant temperature lower than that of the thermosetting resin.


Patent
Nichias Corporation | Date: 2017-07-05

A crosslinking agent includes a compound represented by the following formula (1).^(1), R^(2), and R^(3) are independently a hydrogen atom, a fluorine atom, an alkyl group, a fluoroalkyl group, or a substituted or unsubstituted aryl group, a plurality of R^(1) are identical to or different from each other, a plurality of R^(2) are identical to or different from each other, a plurality of R^(3) are identical to or different from each other, provided that at least one of R^(1), R^(2), and R^(3) is a hydrogen atom, and at least one of R^(1), R^(2), and R^(3) is a fluorine atom or a fluorine atom-containing group, m is an integer from 2 to 6, l is an integer from 0 to 2, and each hydrogen on the benzene ring(s) may be substituted.


Patent
Nichias Corporation | Date: 2017-08-02

A fireproof structure includes: a first heat-absorbing material that includes an inorganic porous formed body that has absorbed water, or a second heat-absorbing material that includes particles that include magnesium phosphate hydrate and a binder; and a fibrous heat-insulating material that includes inorganic fibers having a shrinkage ratio of 5% or less when allowed to stand at 1,100C for 24 hours.


Patent
Nichias Corporation | Date: 2016-06-08

A sheet including exfoliated clay minerals, having a density of 1.6 g/cm^(3) or less and a compression ratio of 20% or more.

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