# US 2009/0266604 A1 · Resin composition

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- Number: US 2009/0266604 A1
- Document ID: US20090266604A1
- Status: Published application
- Kind: A1
- Application number: 12/446,866
- Filed: 2007-11-28
- Published: 2009-10-29
- Earliest claimed: 2006-11-29
- Assignees: Asahi Kasei Chemicals Corporation
- Inventors: Tetsuji Tokiwa
- Web page: https://patentgrep.com/patent/US20090266604A1

## CPC

- C08J 5/18: Manufacture of films or sheets
- C09J 7/22: Plastics; Metallised plastics
- H05K 9/0083: {comprising electro-conductive non-fibrous particles embedded in an electrically insulating supporting structure, e.g. powder, flakes, whiskers (H05K9/0086 takes precedence)}
- C08J 2327/12: containing fluorine atoms
- C08K 3/22: of metals
- C09J 2301/41: additives as essential feature of the carrier layer
- Y10T 428/2998: including synthetic resin or polymer
- Y10T 428/3154: Of fluorinated addition polymer from unsaturated monomers
- C08J: WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H (working, e.g. shaping, of plastics B29)
- C09J: ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES (preparation of glue or gelatine C09H)
- H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- C08K: Use of inorganic or non-macromolecular organic substances as compounding ingredients (paints, inks, varnishes, dyes, polishes, adhesives C09)
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

Disclosed is a resin composition containing a hexagonal ferrite and a resin, which is characterized in that the hexagonal ferrite is contained in an amount of 50-98 parts by weight per 100 parts by weight of the total of the resin composition.

## Claims

### Claim 1

A resin composition comprising a hexagonal ferrite and a resin, characterized in that the resin composition comprises 50 to 98 parts by weight of the hexagonal ferrite, based on 100 parts by weight of a total amount of the resin composition.

### Claim 2 (depends on 1)

The resin composition according to claim 1, comprising 90 to 95 parts by weight of the hexagonal ferrite.

### Claim 3 (depends on 1)

The resin composition according to claim 1, wherein the resin is a fluororesin having a fluorine atom in a polymer molecular chain.

### Claim 4 (depends on 3)

The resin composition according to claim 3, wherein the fluororesin is at least one selected from tetrafluoroethylene, perfluoroalkoxyalkane, a perfluoroethylene-propene copolymer, an ethylene-tetrafluoroethylene copolymer, polyvinylidene fluoride, polychlorotrifluoroethylene, an ethylene-chlorofluoroethylene copolymer, a tetrafluoroethylene-perfluorodioxole copolymer, polyvinylidene fluoride, and a tetrafluoroethylene-propylene copolymer.

### Claim 5 (depends on 4)

The resin composition according to claim 4, wherein the fluororesin is a tetrafluoroethylene-propylene copolymer.

### Claim 6 (depends on 5)

The resin composition according to claim 5, wherein a proportion of a number of propylene units to a total number of monomer units in the tetrafluoroethylene-propylene copolymer is 30 to 50%.

### Claim 7 (depends on 5)

The resin composition according to claim 5, wherein a Mooney viscosity of the tetrafluoroethylene-propylene copolymer is 20 to 50 ML (1+10) 100° C.

### Claim 8 (depends on 1)

The resin composition according to claim 1, wherein the hexagonal ferrite is one or a mixture of two or more selected from the group consisting of an M-type, a Z-type, and a Y-type having the following general formulas:
(M-type) BaMXFe(12-X)O19
(Z-type) Ba3MβFe24O41
(Y-type) Ba2M2Fe12O22
wherein, M is one or a combination of two or more selected from the group consisting of Ti, Co, Ni, Zn, Mn, and Cu, and part or all of Ba may be substituted with Sr, and
wherein in the formula of the M-type, X is an integer of 0 to 12, and in the formula of the Z-type, β is 0.1 to 20.

### Claim 9 (depends on 8)

The resin composition according to claim 8, wherein when the resin composition comprises the M-type as the hexagonal ferrite, a condition of 1.0≦α≦6.4 is satisfied, provided that a molar ratio of a Fe component to an M component in the M-type is represented by Fe component:M component=10:α.

### Claim 10 (depends on 8)

The resin composition according to claim 8, wherein when the resin composition comprises the M-type as the hexagonal ferrite, the M-type is Ba(TiACoBZnC)2Fe10O19, and conditions of 0.3≦A≦1.5, 0.1≦B≦1.0, and 0.1≦C≦0.7 are satisfied.

### Claim 11 (depends on 8)

The resin composition according to claim 8, wherein when the resin composition comprises the Z-type as the hexagonal ferrite, a condition of 0.5≦β≦2.6 is satisfied, provided that a molar ratio of a Fe component to an M component in the Z-type is represented by Fe component:M component=24:β.

### Claim 12 (depends on 8)

The resin composition according to claim 8, wherein when the resin composition comprises the Z-type as the hexagonal ferrite, the Z-type is Ba3CoDZnEFe24O41, and conditions of 0.4≦D≦2.0 and 0.1≦E≦1.0 are satisfied.

### Claim 13 (depends on 8)

The resin composition according to claim 8, wherein when the resin composition comprises the Y-type as the hexagonal ferrite, the Y-type is Ba2(ZnF)2Fe12O22, and a condition of 0.35≦F≦1.35 is satisfied.

### Claim 14 (depends on 1)

The resin composition according to claim 1, comprising 2 to 47 parts by weight of the resin, 50 to 95 parts by weight of the hexagonal ferrite, and 3 to 48 parts by weight of one or a mixture comprising a combination of two or more selected from the group consisting of a soft magnetic ferrite, a soft magnetic alloy, a highly thermally conductive inorganic substance, and an electrically conductive substance, based on 100 parts by weight of the total amount of the resin composition.

### Claim 15 (depends on 1)

A sheet comprising the resin composition according to claim 1.

### Claim 16 (depends on 15)

An adhesive sheet having an adhesive layer on a surface of the sheet according to claim 15.

### Claim 17 (depends on 1)

A paint containing the resin composition according to claim 1.

### Claim 18 (depends on 17)

A sheet for electromagnetic wave absorption having a layer comprising the paint according to claim 17 on a surface of a sheet of a resin.

### Claim 19 (depends on 15)

The sheet according to claim 15, used for absorbing an electromagnetic wave generated from a circuit of an electrical product and electronic equipment.