Abstract:
PROBLEM TO BE SOLVED: To precisely coat a comparatively high protuberance selectively in a method by which a coating of a molecular thickness is formed by dry transfer, on a three-dimensional substrate including the comparatively high protuberance and a comparatively low recessed part. SOLUTION: The surface of a transfer element is impregnated with a chemical compound with affinity with a substrate. Next, this uniformly impregnated transfer element with the impregnated flat surface is arranged is such a manner that the transfer element comes into contact with the substrate including a comparatively high protuberance and a comparatively low recessed part. The top of the comparatively high protuberance of the substrate is coated selectively with the chemical compound and the comparatively low recessed part is kept substantially free from the coating of the chemical compound.
Abstract:
A material system and method for imparting non-stick and non-wetting properties to an inorganic article having hydroxyl groups on its surface, the system comprising a silane having the formula RnSiX4-n, wherein n is 1-2 and X is a hydrolyzable group, a metal alkoxide having at least three hydrolyzable branches and a formula R MX3 or MX4, wherein M is a metal and X is a hydrolyzable branch, and an acidified aqueous mixture with a lower alkanol.
Abstract:
A ceramic composition including a silsesquioxane polymer as a sintering agent in an amount of no more than 30% by weight. The composition is particularly useful as a ceramic cement for forming an external skin on a cordierite honeycomb substrate when the composition is composed of ground cordierite and polyaminopropylsilsesquioxane. A method of preparing the composition is also provided.
Abstract:
PCT No. PCT/US96/14906 Sec. 371 Date Mar. 5, 1998 Sec. 102(e) Date Mar. 5, 1998 PCT Filed Sep. 17, 1996 PCT Pub. No. WO97/13730 PCT Pub. Date Apr. 17, 1997A protective coating which imparts non-stick and abrasion resistant properties, as well as hydrophobic properties to an inorganic article, the coating being the composition product between hydroxyl groups on the surface of the inorganic article and a composition comprising a silane, a metal alkoxide and an acidified aqueous mixture of a lower alkanol. The silane content is at least 50% of the total sum of the silane plus the metal alkoxide. The metal alkoxide is at least 5% and preferably 10% of the total sum of the silane plus the metal alkoxide.
Abstract:
The invention comprises using, providing and making at least one transfer rod (10) of radius (R) having a wettable lower surface (12) upon which a liquid drop (16) to be transferred may form. Rod (10) has a non-wettable side surface (14). Initially after molding rod (10) is entierly non-wettable but it is post treated so at least lower surface (12) is wettable.
Abstract:
A material system and method for imparting non-stick and non-wetting properties to an inorganic article having hydroxyl groups on its surface, the system comprising a silane having the formula RnSiX4-n, wherein n is 1-2 and X is a hydrolyzable group, a metal alkoxide having at least three hydrolyzable branches and a formula R MX3 or MX4, wherein M is a metal and X is a hydrolyzable branch, and an acidified aqueous mixture with a lower alkanol.
Abstract:
A surface coating composition is used to confer anti-stick and water-repellent properties to a mineral-based article comprising OH groups on its surface. The system consists of a silane of formula RnSiX4-n (n = 1 or 2, and X is a hydrolysable group), a metallic alcoholate with at least 3 hydrolysable branches corresponding to the formula RMX3 or MX4 (M is a hydrolysable branch), and an aqueous acidified mixture containing a lower alcohol. Also claimed are (i) the process for applying the coating on the substrate and (ii) the finished film obtained with anti-stick and repellent properties.