Titanium compounds and complexes as additives in lubricants
First Claim
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1. A method for lubricating a heavy-duty diesel internal combustion engine, comprising supplying to said engine a lubricating composition comprising:
- (a) an oil of lubricating viscosity;
(b) 1 to 1000 parts per million by weight of titanium in the form of an oil-soluble titanium-containing material having a number average molecular weight of less than 20,000 selected from the group consisting of titanium alkoxides;
(c) an antioxidant other than a Ti-containing antioxidant, and(d) a metal containing detergent other than a Ti-containing detergent.
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Abstract
A lubricating composition comprising an oil of lubricating viscosity, 1 to 1000 parts per million by weight of titanium in the form of an oil-soluble titanium-containing material, and at least one additional lubricant additive provides beneficial effects on properties such as deposit control, oxidation, and filterability in engine oils.
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Citations
12 Claims
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1. A method for lubricating a heavy-duty diesel internal combustion engine, comprising supplying to said engine a lubricating composition comprising:
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(a) an oil of lubricating viscosity; (b) 1 to 1000 parts per million by weight of titanium in the form of an oil-soluble titanium-containing material having a number average molecular weight of less than 20,000 selected from the group consisting of titanium alkoxides; (c) an antioxidant other than a Ti-containing antioxidant, and (d) a metal containing detergent other than a Ti-containing detergent. - View Dependent Claims (2, 3, 4, 5, 6, 11)
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7. A lubricating composition comprising:
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(a) an oil of lubricating viscosity; (b) about 1 to less than 50 parts per million by weight of titanium in the form of an oil-soluble titanium-containing material selected from the group consisting of titanium alkoxides; and (c) at least one additive selected from the group consisting of (i) anti-wear agents, (ii) dispersants, (iii) antioxidants, and (iv) detergents. - View Dependent Claims (8, 9, 12)
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10. A method for lubricating a heavy-duty diesel internal combustion engine, comprising supplying to said engine a lubricating composition comprising:
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(a) an oil of lubricating viscosity; (b) 1 to 1000 parts per million by weight of titanium in the form of titanium (IV) isopropoxide; (c) an antioxidant other than a Ti-containing antioxidant, and (d) a metal containing detergent other than a Ti-containing detergent.
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Specification