Surface protection composition and terminal fitted electric wire
A surface protection composition which is hard to deform or flow even placed under environments of a large temperature change with an external physical load such as pressure, and which stably protects a metal surface. A terminal fitted electric wire coated with the composition. The surface protection composition contains a high-consistency material (A) containing a lubricant base oil and an amide compound, and a phosphorus composition (B). The phosphorus composition (B) contains a composition (b1) containing one or more compounds represented by the general formulae (1) and (2) and one or more metals and/or one or more amines. The phosphorus composition (B) also contains one or more compounds (b2) represented by the general formula (3).
1. A surface protection composition comprising:
a high-consistency material (A) comprising:
a lubricant base oil; and
an amide compound; and
a phosphorus composition (B), the phosphorus composition (B) comprising:
a composition (b1) comprising:
one or more selected from compounds represented by the general formulae (1) and (2); and
one or more metals and/or one or more amines; and
one or more compounds (b2) represented by the general formula (3):
where X 1 to X 7 each represent independently an oxygen atom or a sulfur atom, R 11 to R 13 each represent independently a hydrogen atom or a hydrocarbon group having 1 to 30 carbon atoms, among which at least one is a hydrocarbon group having 1 to 30 carbon atoms and at least one is a hydrogen atom, R 14 to R 16 each represent independently a hydrogen atom or a hydrocarbon group having 1 to 30 carbon atom, among which at least one is a hydrocarbon group having 1 to 30 carbon atom and at least one is a hydrogen atom, and R 17 to R 19 each represent independently a hydrocarbon group having 1 to 25 carbon atoms,
wherein a mass ratio {(A)+(b1)}:(b2) of the total of the high-consistency material (A) and the composition (b1) to the compound (b2) is within a range of 70:30 to 99.9:0.1.
2. The surface protection composition according to claim 1 , wherein the compound (b2) has a lower molecular weight than the composition (b1).
3. The surface protection composition according to claim 1 , wherein the amide compound comprises one or more selected from compounds represented by the general formulae (4) to (6):
R 21 —CO—NH—R 22 (4)
R 23 —CO—NH—Y 31 —NH—CO—R 24 (5)
R 25 —NH—CO—Y 32 —CO—NH—R 26 (6)
where R 21 to R 26 each represent independently a saturated or unsaturated linear hydrocarbon group having 5 to 25 carbon atoms except that R 22 may be hydrogen, and Y 31 and Y 32 each represent a divalent hydrocarbon group having 1 to 10 carbon atoms selected from an alkylene group and a phenylene group having 1 to 10 carbon atoms, or an alkylphenylene group having 7 to 10 carbon atoms.
4. The surface protection composition according to claim 1 , wherein the amide compound is a fatty acid amide having a melting point within a range of 20° C. to 200° C.
5. The surface protection composition according to claim 1 , wherein the compound represented by the general formulae (1) and (2) has one or more branched structures or one or more carbon-carbon double bond structures in the structure of the hydrocarbon groups.
6. The surface protection composition according to claim 1 , wherein the metal in the composition (b1) is at least one selected from alkali metals, alkaline earth metals, aluminum, titanium, and zinc.
7. The surface protection composition according to claim 1 , wherein the composition (b1) has a molecular weight of 3000 or lower.
8. The surface protection composition according to claim 1 , wherein a mass ratio (A):(b1) of the high-consistency material (A) to the composition (b1) is within a range of 30:70 to 98:2.
9. The surface protection composition according to claim 1 , wherein the composition covers a surface of a metal component with closely contacting the surface, preventing corrosion of the metal component.
10. A terminal-fitted electric wire, wherein an electric connection part between a terminal and an electric conductor is covered with the surface protection composition according to claim 1 .