摘要:
A method of coating a substrate with aluminum phosphate comprising coating the substrate with a composition capable of generating aluminum phosphate on drying and heating the application and drying of the coating composition being effected under conditions such that the surface tension of the coating composition is not allowed to exceed the critical wetting tension of the substrate.
摘要:
A PEEL-BACK RESISTANT COMPOSITION USEFUL TO FORM A DIEBONDING PAD IN MICROELECTRONIC CIRCUITRY IS PROVIDED. THE COMPOSITION COMPRISES BY WEIGHT ABOUT 94-98% PARTICULATE NOBLE METAL AND ABOUT 2-6% BY WEIGHT OF A GLASS BINDER. THE GLASS BINDER CONSISTS OF A FRITTED PARTICULATE GLASS FORMED FROM A COMPOSITION COMPRISING BY WEIGHT ABOUT; 75-89% PBO, 10-15% B2O3, 1-8% BAO AND 0-6% SIO2. THE PARTICULATE COMPOSITION IS READILY FORMED INTO A PRINTING PASTE USING AN ORGANIC VEHICLE AND IS FIREABLE AT ABOUT 550-1000* C. TO A NONPEELING PAD OR COATING.
摘要:
A process is illustrated for rendering a water repellent fabric fire retardant without adversely affecting the fabric''s water repellent characteristics. The water repellent fabric is treated with an aqueous medium containing a fire retarding agent and a thermally degradable surfactant such as the diacetyl dilauryl amide derivative of triethylenetetramine and then dried. On drying, the surfactant degrades and the water repellent characteristics of the fabric are restored.
摘要:
Two catalytic additives are added to a mixed solution of acetone and furfural to produce a resinous solution for use in impregnating a carbonaceous product. A carbonaceous article is impregnated with the solution at a reduced pressure, and the article is immersed in a concentrated sulfuric acid bath. Then, it is withdrawn from the acid bath, rinsed, and dried. Finally, it is subjected to a heat treatment at elevated temperatures to carbonize or graphitize the carbon product impregnated with the resinous solution.
摘要:
An inorganic film in either the crystalline or vitreous state is formed in situ on a suitable substrate by the decomposition of metal and/or metalloidal resinates. A plurality of metallic and/or metalloidal resinates, which form inorganic oxides upon decomposition in air or an oxidizing atmosphere, are physically admixed to form a resinate mixture. The resinate mixture is applied to the substrate and the substrate is fired in air to a temperature sufficient to (1) decompose the resinate mixture to form the inorganic oxides and (2) combine the resultant inorganic oxides to form a film either in the crystalline or amorphous state on the surfaces of the substrate.
摘要:
The process for the manufacture of chemical resistant polyarylate films and coatings obtained by dissolving the polyarylate in a mixture of typical solvents and forming the same by evaporating said solvents, consists in additionally conditioning the films and coatings at a temperature of 135 320*C for 1 - 10 hours. The conditioning process is applied to polyarylates containing in the main chain a group in which the carbon atom between two aryl rings is connected to a CCl2-group by a double bond.
摘要:
A polysiloxane oven coating for use in paint baking ovens to trap undesirable solid particulate matter and thereby prevent its deposition on the baking paint film. The coating can be employed effectively without causing paint defects in the finished paint film.