3results about How to "Good long-term durability" patented technology

The utility model belongs to the technical field of gas extraction pipeline water drain, specifically is a kind of coal mine gas extraction pipeline water drain. Include: extraction pipeline, the extraction pipeline is horizontally arranged, and the opening is set in extraction pipeline bottom;Water drain main part, the water drain main part is connected in extraction pipeline bottom, and is communicated with opening;The top of water drain main part is equipped with the water inlet that is communicated with extraction pipeline, bottom is equipped with drain, the inside of water drain main part is equipped with check valve for controlling water accumulation discharge;The check valve includes valve seat and the ball float for sealing this valve seat, ball float is arranged on limit rod, limit rod is provided with return spring, and return spring supports ball float.The utility model effectively solves the problem of small volume and easy water accumulation caused by the height restriction of traditional vertical water drain.

Provided is a composition that can form a coating film having excellent surface smoothness and high heat deformation resistance in a coating liquid for a paint mainly containing a polymer, an ink, an adhesive, and an anode, a cathode, or a separator of a lithium ion battery, for example. A coating liquid composition includes a filler, a solvent, a dispersant, and a thickener. When the coating liquid composition is applied to a substrate to form a coating film having a thickness of 0.5 to 20 pm, the coating film has a shrinkage rate of 15.0% or less after heating at 170°C for 15 minutes.

To provide an exhaust gas purification catalyst or the like in which poisoning of a noble metal component by a Si-containing compound generated or detached from silicon carbide is inhibited, degradation of exhaust gas purification performances is inhibited over a long period and long-term durability is excellent. An exhaust gas purification catalyst 100 having a stacked structure including at least a substrate 10, a first coat layer 11 and a second coat layer 21 in the listed order, in which the substrate 10 is one selected from the group consisting of a silicon carbide carrier including silicon carbide and a silicon carbide-covering carrier on which a coating layer including silicon carbide is provided, the first coat layer 11 includes a compound including one or more alkaline-earth metals selected from the group consisting of magnesium (Mg), calcium (Ca), strontium (Sr), and barium (Ba), and the second coat layer 21 includes one or more platinum group elements selected from the group consisting of rhodium (Rh), platinum (Pt), and palladium (Pd).