IP Library Granted Patent US 11,732,124
Granted Patent B2
US 11,732,124 · App. 16/767,442 · Granted Aug 22, 2023

Compound and tablet

Inventors: Kazumasa Takeuchi (Tokyo, JP); Chio Ishihara (Tokyo, JP); Hideo Maeda (Tokyo, JP); Masahiko Osaka (Tokyo, JP); Takashi Inagaki (Tokyo, JP)
Assignee: RESONAC CORPORATION
C08L63/00C08L91/06H01F1/153C08K2003/0856C08L2203/20C08L2205/03
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Quick Facts
Patent No.
US 11,732,124
App. No.
16/767,442
Granted
Aug 22, 2023
Kind
B2
Abstract

A compound comprises a resin composition containing an epoxy resin, a phenol resin, a wax, and an imidazole compound, and a metal element-containing powder, wherein the epoxy resin comprises a crystalline epoxy resin, the wax comprises a montanic acid ester, and the content of the metal element-containing powder is 90 mass % or more based on the total mass of the compound.

Claims (20)

1. A compound comprising:

a resin composition comprising an epoxy resin, a phenol resin, a wax, and an imidazole compound; and

a metal element-containing powder,

wherein the epoxy resin comprises a crystalline epoxy resin,

wherein a content of the wax is 0.3 to 1.2 mass % based on the total mass of the compound, and the wax comprises a montanic acid ester, and

wherein a content of the metal element-containing powder is 90 mass % or more based on the total mass of the compound.

2. The compound according to claim 1 , wherein the crystalline epoxy resin comprises at least one selected from the group consisting of a biphenyl-type epoxy resin and a biphenyl aralkyl-type epoxy resin.

3. The compound according to claim 1 , wherein the metal element-containing powder comprises an amorphous Fe alloy powder.

4. The compound according to claim 1 , wherein the imidazole compound comprises an imidazole compound having an alkyl group with 8 or more carbon atoms.

5. The compound according to claim 1 , wherein the content of the wax is 0.4 to 1.0 mass % based on the total mass of the compound.

6. The compound according to claim 1 , wherein the content of the wax is 0.5 to 0.9 mass % based on the total mass of the compound.

7. The compound according to claim 1 , wherein the content of the metal element-containing powder is 92 mass % or more based on the total mass of the compound.

8. The compound according to claim 1 , wherein the content of the metal element-containing powder is 94 mass % or more based on the total mass of the compound.

9. The compound according to claim 1 , wherein the content of the metal element-containing powder is 90 mass % or more and 99.8 mass % or less based on the total mass of the compound.

10. The compound according to claim 1 , wherein the content of the metal element-containing powder is 98 mass % or less based on the total mass of the compound.

11. The compound according to claim 1 , wherein the content of the metal element-containing powder is 96 mass % or less based on the total mass of the compound.

12. The compound according to claim 1 , wherein the crystalline epoxy resin comprises at least one selected from the group consisting of a biphenyl-type epoxy resin and a biphenyl aralkyl-type epoxy resin, the metal element-containing powder comprises an amorphous Fe alloy powder, and the imidazole compound comprises an imidazole compound having an alkyl group with 8 or more carbon atoms.

13. The compound according to claim 1 , wherein the compound is used for an inductor.

14. The compound according to claim 1 , wherein the compound is used for transfer molding.

15. A tablet formed by using the compound according to claim 1 .

Assignments (4)
CHANGE OF ADDRESS Recorded Feb 14, 2024
From: RESONAC CORPORATION
To: RESONAC CORPORATION
Reel/Frame 066599/0037 →
CHANGE OF NAME Recorded Mar 3, 2023
From: SHOWA DENKO MATERIALS CO., LTD.
To: RESONAC CORPORATION
Reel/Frame 062946/0125 →
CHANGE OF NAME Recorded Mar 2, 2023
From: HITACHI CHEMICAL COMPANY, LTD.
To: SHOWA DENKO MATERIALS CO., LTD.
Reel/Frame 062917/0865 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 24, 2020
From: TAKEUCHI, KAZUMASA; ISHIHARA, CHIO; MAEDA, HIDEO; OSAKA, MASAHIKO; INAGAKI, TAKASHI
To: HITACHI CHEMICAL COMPANY, LTD.
Reel/Frame 053303/0496 →