# US 11,898,059 B2 · Surface protection composition and terminal fitted electric wire

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- Number: US 11,898,059 B2
- Document ID: US11898059B2
- Status: Granted
- Kind: B2
- Application number: 16/975,419
- Filed: 2019-02-25
- Published: 2020-12-17
- Granted: 2024-02-13
- Earliest claimed: 2018-03-14
- Assignees: Autonetworks Technologies, Ltd.; Sumitomo Wiring Systems, Ltd.; Sumitomo Electric Industries, Ltd.; Kyushu University, National University Corporation
- Applicants: Autonetworks Technologies, Ltd.; Sumitomo Wiring Systems, Ltd.; Sumitomo Electric Industries, Ltd.; Kyushu University, National University Corporation
- Inventors: Naoyuki Oshiumi; Takehiro Hosokawa; Makoto Mizoguchi
- Web page: https://patentgrep.com/patent/US11898059B2

## CPC

- C09D 5/086: {Organic or non-macromolecular compounds}
- C09D 4/00: Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond {; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16}
- C09D 5/084: {Inorganic compounds}
- C09D 133/062: {Copolymers with monomers not covered by C09D133/06}
- C09D 135/02: Homopolymers or copolymers of esters (C09D135/06, C09D135/08 take precedence)
- C23F 11/1676: {Phosphonic acids}
- C23F 11/173: Macromolecular compounds
- H01B 7/2806: {Protection against damage caused by corrosion}
- C08L 2203/202: use in electrical wires or wirecoating
- H01R 4/185: {combined with a U-shaped insulation-receiving portion}
- H01R 4/62: Connections between conductors of different materials; Connections between or with aluminium or steel-core aluminium conductors (H01R4/68 takes precedence)
- H01R 4/70: Insulation of connections (end caps H01R4/22)
- C09D: COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR (cosmetics A61K; processes for applying liquids or other fluent materials to surfaces, in general, B05D; staining wood B27K5/02; glazes or vitreous enamels C03C; natural resins, French polish, drying-oils, driers, turpentine, per se, C09F; polishing compositions other than French polish, ski waxes C09G; adhesives or use of materials as adhesives C09J; materials for sealing or packing joints or covers C09K3/10; materials for stopping leaks C09K3/12; processes for the electrolytic or electrophoretic production of coatings C25D)
- C23F: NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE (working metal by laser beams B23K26/00; desurfacing by applying flames B23K7/00; working of metal by electro-erosion B23H; producing decorative effects by removing surface material, e.g. by engraving, by etching, B44C1/22; electrolytic etching or polishing C25F); INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- H01B: CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES (selection for magnetic properties H01F1/00; waveguides H01P {; printed circuits H05K})
- C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06)
- H01R: ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS

## Abstract

A surface protection composition having a compound represented by the formula (1) in an amount of 0.1 to 10 mass % in terms of phosphorus element with respect to the total amount of the composition, the compound (b) the metal-containing compound in an amount of 0.1 to 10 mass % in terms of a metal element with the total amount of the composition or the amine compound in an amount of 0.1 to 5.0 mass % in terms of nitrogen element the total amount of the composition, the compound (c) (meth)acrylate having 2 or more carbon-carbon double bonds and hydrocarbon chains having four or more carbon atoms in an amount of 1.0 to 70 mass % with the total amount of the composition, the compound (d) a photopolymerization initiator in an amount of 0.1 to 10 mass % with the total amount of the composition.

## Claims

### Claim 1

A Surface protection composition comprising:
(a) a phosphorus compound represented by the following general formula (1) in an amount of 0.1 to 10 mass % in terms of phosphorus element with respect to the total amount of the composition,
where R1 represents a hydrogen atom, R2 represents a hydrocarbon group having 4 to 30 carbon atoms, and R3 represents a hydrogen atom or a hydrocarbon group having 4 to 30 carbon atoms;
(b) a metal-containing compound in an amount of 0.1 to 10 mass % in terms of a metal element with respect to the total amount of the composition, or
an amine compound in an amount of 0.1 to 5.0 mass % in terms of nitrogen element with respect to the total amount of the composition;
(c) a (meth)acrylate having:
two or more carbon-carbon double bonds; and
a hydrocarbon chain having four or more carbon atoms,
in an amount of 1.0 to 70 mass % with respect to the total amount of the composition,
(d) a photopolymerization initiator in an amount of 0.1 to 10 mass % with respect to the total amount of the composition.

### Claim 2 (depends on 1)

The surface protection composition according to claim 1, wherein the metal in the compound (b) is at least one selected from the group consisting of alkali metals, alkaline earth metals, aluminum, titanium, and zinc.

### Claim 3 (depends on 2)

The surface protection composition according to claim 2, wherein at least one of the hydrocarbon groups having 4 to 30 carbon atoms in the compound (a) has one or more branched chains or one or more carbon-carbon double bonds.

### Claim 4 (depends on 3)

The surface protection composition according to claim 3, wherein a mass ratio ((a)+(b)):(c) of the total of the compound (a) and the compound (b) to the compound (c) is within a range of 98:2 to 30:70.

### Claim 5 (depends on 4)

The surface protection composition according to claim 4, further comprising 10 to 90 mass % of a lubricating base oil (e) with respect to the total amount of the composition.

### Claim 6 (depends on 5)

The surface protection composition according to claim 5, wherein each of the hydrocarbon groups in the general formula (1) is an aliphatic hydrocarbon group or an alicyclic hydrocarbon group.

### Claim 7 (depends on 6)

The surface protection composition according to claim 6, wherein the compound (c) is a polyfunctional (meth)acrylate comprising an aliphatic or alicyclic hydrocarbon chain with 8 to 22 carbon atoms.

### Claim 8 (depends on 7)

A terminal-fitted electric wire comprising:
a terminal fitting;
an electric wire; and
an electric connection part between the terminal and the electric conductor, covered with a cured product of the surface protection composition according to claim 7.

### Claim 9 (depends on 1)

The surface protection composition according to claim 1, wherein at least one of the hydrocarbon groups having 4 to 30 carbon atoms in the compound (a) has one or more branched chains or one or more carbon-carbon double bonds.

### Claim 10 (depends on 1)

The surface protection composition according to claim 1, wherein a mass ratio ((a)+(b)):(c) of the total of the compound (a) and the compound (b) to the compound (c) is within a range of 98:2 to 30:70.

### Claim 11 (depends on 1)

The surface protection composition according to claim 1, further comprising 10 to 90 mass % of a lubricating base oil (e) with respect to the total amount of the composition.

### Claim 12 (depends on 1)

The surface protection composition according to claim 1, wherein each of the hydrocarbon groups in the general formula (1) is an aliphatic hydrocarbon group or an alicyclic hydrocarbon group.

### Claim 13 (depends on 1)

The surface protection composition according to claim 1, wherein the compound (c) is a polyfunctional (meth)acrylate comprising an aliphatic or alicyclic hydrocarbon chain with 8 to 22 carbon atoms.

### Claim 14 (depends on 1)

A terminal-fitted electric wire comprising:
a terminal fitting;
an electric wire; and
an electric connection part between the terminal and the electric conductor, covered with a cured product of the surface protection composition according to claim 1.

### Claim 15 (depends on 14)

The terminal-fitted electric wire according to claim 14, wherein the compound (b) is an amine.

### Claim 16 (depends on 1)

The surface protection composition according to claim 1, wherein the compound (b) is an amine.
