FOOD GRADE LUBRICANT COMPOSITIONS
A food grade lubricant composition and method of lubricating food processing machinery. The food grade lubricant composition includes a major amount of food grade base oil and a minor amount of at least one additive composition. The additive composition includes one or more non-sludge promoting wear reducing agents. An advantage of the lubricant composition is that it may exhibit lower sludge formation tendencies than a lubricant composition containing a conventional wear reducing agent.
1 . A food grade lubricant composition comprising:
a major amount of food grade base oil and a minor amount of at least one additive composition comprising one or more non-sludge promoting wear reducing agents, wherein the lubricant composition exhibits lower sludge formation tendencies than a lubricant composition containing a conventional wear reducing agent.
2 . The food grade lubricant composition of claim 1 , wherein the one or more non-sludge promoting wear reducing agents are selected from the group consisting of triphenyl phosphorothionates, amine neutralized phosphoric acid esters, and mixtures thereof, wherein the amine is a non-branched chain amine.
3 . The food grade lubricant composition of claim 1 , wherein the food grade base oil comprises an oil selected from the group consisting of white oil, vegetable oils, and mixtures thereof.
4 . The food grade lubricant composition of claim 1 , wherein the additive further comprises at least one antioxidant selected from the group consisting of amine antioxidants, phenolic antioxidants, and mixtures thereof.
5 . The food grade lubricant composition of claim 1 , wherein the wear reducing agent comprises a mixture of triphenyl phosphorothionate and an amine neutralized phosphoric acid esters, wherein the amine is a non-branched chain amine.
6 . The food grade lubricant composition of claim 1 , wherein the additive composition further comprises a methacrylate antifoam agent.
7 . The food grade lubricant composition of claim 1 , further comprising a component selected from the group consisting of a preservative, a corrosion inhibitor, and a rust inhibitor.
8 . The food grade lubricant composition of claim 1 , wherein the major amount of food grade base oil comprises from about 85 to about 99.9 weight percent based on a total weight of base oil and additive composition.
9 . The food grade lubricant composition of claim 1 , wherein the additive composition meets HX-1 approval criteria.
10 . The food grade lubricant composition of claim 1 , wherein the lubricant composition is devoid of base oils and additives derived from animals.
11 . A method of operating machinery for food processing comprising:
providing the machinery with a food grade lubricant comprising a major amount of food grade base oil and a minor amount of at least one additive composition comprising one or more non-sludge promoting wear reducing agents, wherein the lubricant composition exhibits lower sludge formation tendencies than a lubricant composition containing a conventional wear reducing agent; and
operating the machinery.
12 . The method of claim 11 , wherein the one or more non-sludge promoting wear reducing agents are selected from the group consisting of triphenyl phosphorothionates, amine neutralized phosphoric acid esters, and mixtures thereof, wherein the amine is a non-branched chain amine.
13 . The method of claim 11 , wherein the food grade base oil comprises an oil selected from the group consisting of white oil, vegetable oils, and mixtures thereof.
14 . The method of claim 11 , wherein the additive further comprises at least one antioxidant selected from the group consisting of amine antioxidants, phenolic antioxidants, and mixtures thereof.
15 . The method of claim 11 , wherein the wear reducing agent comprises a mixture of triphenyl phosphorothionate and an amine neutralized phosphoric acid esters, wherein the amine is a non-branched chain amine.
16 . The method of claim 11 , wherein the additive composition further comprises a methacrylate antifoam agent.
17 . The method of claim 11 , wherein the additive composition further comprises a component selected from the group consisting of a preservative, a corrosion inhibitor, and a rust inhibitor.
18 . The method of claim 11 , wherein the major amount of food grade base oil comprises from about 85 to about 99.9 weight percent based on a total weight of base oil and additive composition.