A grease composition comprises a thickener, a base oil, and a friction modifier. The friction modifier comprises: at least one selected from the group consisting of fatty acids, fatty acid metal salts, phosphate esters, thiophosphate esters, and zinc dithiophosphates; and a polyhydric alcohol ester.

A grease composition comprises a thickener, a base oil, and a friction modifier. The friction modifier comprises: at least one selected from the group consisting of fatty acids, fatty acid metal salts, phosphate esters, thiophosphate esters, and zinc dithiophosphates; and a polyhydric alcohol ester.

Lubricating compositions comprising an azole-acrylic adduct formed by contacting an azole compound with an acrylic. The adduct formed has at least one nitrogen-alkyl group comprising at least one acyl. The lubricating composition also comprises an antiwear agent and an antioxidant. Methods of lubricating an internal combustion engine comprising contacting the internal combustion engine with the lubricating composition comprising an azole-acrylic adduct formed by contacting an azole compound with an acrylic. Methods of reducing corrosion and/or seal deterioration in an internal combustion engine. The use of an azole-acrylic adduct in a lubricating composition to reduce corrosion and/or seal deterioration in an internal combustion engine.

Lubricating compositions comprising an azole-acrylic adduct formed by contacting an azole compound with an acrylic. The adduct formed has at least one nitrogen-alkyl group comprising at least one acyl. The lubricating composition also comprises an antiwear agent and an antioxidant. Methods of lubricating an internal combustion engine comprising contacting the internal combustion engine with the lubricating composition comprising an azole-acrylic adduct formed by contacting an azole compound with an acrylic. Methods of reducing corrosion and/or seal deterioration in an internal combustion engine. The use of an azole-acrylic adduct in a lubricating composition to reduce corrosion and/or seal deterioration in an internal combustion engine.

The composition according to the present embodiment is a composition for forming a lubricant coating layer on a threaded connection for pipes or tubes, and contains Cr.sub.2O.sub.3, a metal soap, a wax and a basic metal salt of an aromatic organic acid. The threaded connection for pipes or tubes according to the present embodiment includes a pin and a box. The pin and the box each include a contact surface including a threaded portion. The threaded connection for pipes or tubes includes, as an outermost layer, a lubricant coating layer formed from the aforementioned composition on at least one of the contact surfaces of the pin and the box.

The composition according to the present embodiment is a composition for forming a lubricant coating layer on a threaded connection for pipes or tubes, and contains Cr.sub.2O.sub.3, a metal soap, a wax and a basic metal salt of an aromatic organic acid. The threaded connection for pipes or tubes according to the present embodiment includes a pin and a box. The pin and the box each include a contact surface including a threaded portion. The threaded connection for pipes or tubes includes, as an outermost layer, a lubricant coating layer formed from the aforementioned composition on at least one of the contact surfaces of the pin and the box.

A lubricant composition is disclosed comprising an antioxidant composition and a lubricating oil. The antioxidant composition comprises a phenolic antioxidant having the following structure (I)

##STR00001##

and
a phosphite antioxidant having the following structure (II)

##STR00002##

wherein, A is a direct bond or an alkylene; X is —C(O)O—, —OC(O)—, —C(O)N(R.sub.7)—, —N(R.sub.7)C(O)—, —C(O)—, —N(R.sub.7)—, —O—, or —S—; R.sub.1 and R.sub.2 are each independently a C.sub.1-C.sub.10 alkyl, a C.sub.2-C.sub.10 alkenyl, a C.sub.2-C.sub.10 alkynyl, or a C.sub.3-C.sub.12 aryl; R.sub.3 includes a C.sub.1-C.sub.80 alkyl, a C.sub.2-C.sub.80 alkenyl, a C.sub.2-C.sub.80 alkynyl, or a C.sub.3-C.sub.12 aryl; R.sub.4, R.sub.5, and R.sub.6 are each independently hydrogen, alkyl, alkenyl, alkynyl, or aryl provided that at least one of R.sub.4, R.sub.5, and R.sub.6 is not hydrogen; R.sub.7 is H or an alkyl; and m, n, and o are each independently from 1 to 3.

A lubricant composition is disclosed comprising an antioxidant composition and a lubricating oil. The antioxidant composition comprises a phenolic antioxidant having the following structure (I)

##STR00001##

and
a phosphite antioxidant having the following structure (II)

##STR00002##

wherein, A is a direct bond or an alkylene; X is —C(O)O—, —OC(O)—, —C(O)N(R.sub.7)—, —N(R.sub.7)C(O)—, —C(O)—, —N(R.sub.7)—, —O—, or —S—; R.sub.1 and R.sub.2 are each independently a C.sub.1-C.sub.10 alkyl, a C.sub.2-C.sub.10 alkenyl, a C.sub.2-C.sub.10 alkynyl, or a C.sub.3-C.sub.12 aryl; R.sub.3 includes a C.sub.1-C.sub.80 alkyl, a C.sub.2-C.sub.80 alkenyl, a C.sub.2-C.sub.80 alkynyl, or a C.sub.3-C.sub.12 aryl; R.sub.4, R.sub.5, and R.sub.6 are each independently hydrogen, alkyl, alkenyl, alkynyl, or aryl provided that at least one of R.sub.4, R.sub.5, and R.sub.6 is not hydrogen; R.sub.7 is H or an alkyl; and m, n, and o are each independently from 1 to 3.

A composition for protection from scale and as a lubricant for the hot processing of metals is disclosed. The composition includes a mixture of fine-powder materials containing at least the following constituents: (a) 0 to 15% by weight of secondary or tertiary calcium phosphate compound, hydroxyapatite or a mixture thereof, (b) 0.1 to 35% by weight of fatty acid, fatty acid salt or a mixture thereof, (c) 1 to 90% by weight of ground borosilicate glass which in relation to the borosilicate glass contains Na, B, Si and Al in the following proportions by weight expressed by their respective oxides: 1 to 30% by weight of Na.sub.2O, 2 to 70% by weight of B.sub.2O.sub.3, 10 to 70% by weight of SiO.sub.2, and 0 to 10% by weight of Al.sub.2O.sub.3, (d) 9 to 85% by weight of condensed alkali metal phosphates, (e) boric acid, boric acid salt or a mixture thereof in an amount corresponding to a boron content, expressed by the oxide, of 0 to 3.2% by weight of B.sub.2O.sub.3, and (f) 0 to 10% by weight of graphite. The mixture has a mean particle size D50 of <300 μm.

A composition for protection from scale and as a lubricant for the hot processing of metals is disclosed. The composition includes a mixture of fine-powder materials containing at least the following constituents: (a) 0 to 15% by weight of secondary or tertiary calcium phosphate compound, hydroxyapatite or a mixture thereof, (b) 0.1 to 35% by weight of fatty acid, fatty acid salt or a mixture thereof, (c) 1 to 90% by weight of ground borosilicate glass which in relation to the borosilicate glass contains Na, B, Si and Al in the following proportions by weight expressed by their respective oxides: 1 to 30% by weight of Na.sub.2O, 2 to 70% by weight of B.sub.2O.sub.3, 10 to 70% by weight of SiO.sub.2, and 0 to 10% by weight of Al.sub.2O.sub.3, (d) 9 to 85% by weight of condensed alkali metal phosphates, (e) boric acid, boric acid salt or a mixture thereof in an amount corresponding to a boron content, expressed by the oxide, of 0 to 3.2% by weight of B.sub.2O.sub.3, and (f) 0 to 10% by weight of graphite. The mixture has a mean particle size D50 of <300 μm.