Crystal formation inhibition in lubricating compositions

   
   

Lubricating oil formulations comprising base oil, sulfur-phosphorous anti-wear/extreme pressure agents and hindered phenol antioxidants which anti-wear/extreme-pressure agents and hindered phenolic antioxidants are prone to crystal formation wherein the base oil is characterized as having a saturates content of less than 99% are stabilized against crystal formation by the addition of a minor amount of a high molecular weight di- or polycarboxylic acid anhydride, or mixture thereof.

Formulaciones del aceite lubricante que abarcan el aceite bajo, agentes sulfuro-sulfur-phosphorous de la presión de anti-wear/extreme y antioxidantes obstaculizados del fenol que los agentes de anti-wear/extreme-pressure y los antioxidantes phenolic obstaculizados son propensos a la formación cristalina en donde se caracteriza el aceite bajo como teniendo a satura el contenido de menos los de 99% son estabilizados contra la formación cristalina por la adición de una cantidad de menor importancia de un anhídrido ácido di- o polycarboxylic alto del peso molecular, o mezcla de eso.

 
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