摘要:
This invention pertains to a method for producing an insoluble coating on a substrate by curing a composition comprising hydrogen silsesquioxane at a temperature of 375.degree. C. or less for a time sufficient to produce a coating having >80% SiH. It has been found that when the hydrogen silsesquioxane resin is cured at a temperature of 375.degree. C. or less that that the insoluble SiH containing coating shows improved film stress.
摘要:
A solution of a ceramics precursor prepared from at last one or two types of metal alkoxides or metal acylates is applied onto a ceramics film having irregularity on its surface, which is formed on a conductor surface, to fill up irregular portions of the surface. This ceramics precursor solution is at least partially changed to a ceramics state by heating. The surface is smoothed by such application of the ceramics precursor solution, and general disadvantages of weakness against rubbing and inferiority in workability can be improved. Further, it is possible to improve an outgassing property.
摘要:
Disclosed herein are process of preparing carbon supports coated with polyolefin or fluorinated polyolefin to be employed as a network substrate of such an electrochemical cell, in these processes, a solvent which solvates the polyolefin is employed for forming polyolefin in the shape of nearly single fibers which are the smallest unit conceivable. The carbon supports coated with the said solvated polyolefin which possesses the maximum uniformity concalvable have the maximum performance when they are employed in a gas diffusion electrode.