Protective coating compositions for use in airless spray equipment for coating metallic underbodies of automotive vehicles

Claim 1

A PROTECTIVE COATING COMPOSITION FOR USE IN AIRLESS SPRAY EQUIPMENT FOR COATING METALLIC UNDERBODIES OF AUTOMOTIVE VEHICLES COMPRISING A NORMALLY NON-FLUID, SPRAYABLE, THIXOTROPIC GEL-LIKE MIXTURE CONTAINING A ESSENTIAL INGREDIENTS FROM 50% TO 97%, BY WEIGHT, OF A SOLUTION OF A SUBSTANTIALLY WATER-INSOLUBLE RESINOUS COATING MATERIAL AND AN ORGANICE SOLVENT WHICH IS A SOLVENT FOR SAID MATERIAL AT AMBIENT TEMPERATURES (SAID MATERIAL CONSTITUTING FROM 20% TO 50%, BY WEIGHT, OF THE THIXOTROPIC GEL-LIKE MIXTURE), AND FROM 1% TO 25%, BY WEIGHT, OF SAID GEL-LIKE MIXTURE OF A GELLING AGENT, SAID GELLING AGENT BEING SELECTED FROM A MEMBER OF THE GORUP CONSISTING OF: (A) AN IN SITU FORMED METAL SALT OF A HIGHER MOLECULAR WEIGHT FATTY ACID; (B) AN IN SITU FORMED AMMONIUM SALT OF A HIGHER MOLECULAR WEIGHT CARBOXYLIC ACID: (C) AN IN SITU FORMED AMINE SALT OF A HIGHER MOLECULAR WEIGHT CARBOXYLIC ACID; AND MIXTURES THEREOF, SAID NORMALLY NONFLUID, SPRAYABLE, THIXOTROPIC GEL-LIKE MIXTURE WHEN SPRAYED ON THE UNDERBODY OF A MOTOR VEHILCE FORMING A FIRM, DRY, IMPACT-, CORROSION- AND ABRASION-RESISTANT COATING HAVING SOUND DEADENING PROPERTIES.