Surface protection composition and terminal fitted electric wire

Patent metadata

Field	Value
Publication number	US-2019106652-A1
Application number	US-201716086445-A
Country	US
Kind code	A1
Filing date	Mar 8, 2017
Priority date	Mar 29, 2016
Publication date	Apr 11, 2019
Grant date	—

Abstract

A surface protection composition stably protecting a metal surface even at a high temperature, and a terminal-fitted electric wire improved in anticorrosion property by using the composition. The surface protection composition contains a high-consistency material (A) containing a lubricant base oil and an amide compound, and a composition (B) containing a phosphorus compound containing one or more compounds represented by the general formulae (1) and (2) and a metal. The mass ratio (A):(B) of the high-consistency material (A) to the composition (B) is within a range of 50:50 to 98:2. The lubricant base oil has a kinematic viscosity of 10 mm 2 /s or higher at 100° C. and a number-average molecular weight of 400 or higher:

First claim

1 . A surface protection composition comprising:
a high-consistency material (A) comprising:
a lubricant base oil; and an
amide compound; and
a composition (B) containing:
a phosphorus compound comprising:
one or more selected from compounds represented by the general formulae (1) and (2); and

a metal,
a mass ratio (A):(B) of the high-consistency material (A) to the composition (B) being within a range of 50:50 to 98:2, the lubricant base oil having a kinematic viscosity within a range of 100 to 150 mm 2 /s at 100° C. and the number-average molecular weight of 400 or higher:

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 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 atoms.

2 . The surface protection composition according to claim 1 , wherein the average-molecular weight of the lubricant base oil is within a range of 7000 to 10000.

3 . The surface protection composition according to claim 1 , wherein the composition has a shear viscosity of 1000 mPa·s or higher at 100° C.

4 . The surface protection composition according to claim 1 , wherein the amide compound comprises one or more selected from compounds represented by the below-presented general formulae (3) to (5):
R 21 —CO—NH—R 22   (3)
R 23 —CO—NH—Y 31 —NH—CO—R 24   (4)
R 25 —NH—CO—Y 32 —CO—NH—R 26   (5),
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.

5 . 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.

6 . The surface protection composition according to claim 1 , wherein the phosphorus compound has one or more branched structures or one or more carbon-carbon double bond structures in the structure of the hydrocarbon groups.

7 . The surface protection composition according to claim 1 , wherein the metal forming the composition together with the phosphorus compound is at least one selected from alkali metals, alkaline earth metals, aluminum, titanium, and zinc.

8 . The surface protection composition according to claim 1 , wherein the composition of the phosphorus compound and the metal has a molecular weight of 3000 or lower.

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 .

Assignees

• Autonetworks Technologies Ltd
• Sumitomo Wiring Systems
• Sumitomo Electric Industries
• Univ Kyushu
• Jxtg Nippon Oil & Energy Corp

Inventors

• Takata Yutaka
• Hosokawa Takehiro
• Hase Tatsuya
• Oshiumi Naoyuki
• Yamashita Takuya
• Mizoguchi Makoto
• Yoshida Koichi
• Komiya Kenichi
• Shitara Yuji
• Yagishita Kazuhiro

Classifications

• C10N2010/06

  Groups 3 or 13 · CPC title

• C10M137/02

  having no phosphorus-to-carbon bond · CPC title

• C10N2010/04

  Groups 2 or 12 · CPC title

• C10N2020/04

  Molecular weight; Molecular weight distribution · CPC title

• C10M2201/062

  Oxides; Hydroxides; Carbonates or bicarbonates · CPC title