JPS5665036A - Plastic magnetic composition - Google Patents
Plastic magnetic compositionInfo
- Publication number
- JPS5665036A JPS5665036A JP14050379A JP14050379A JPS5665036A JP S5665036 A JPS5665036 A JP S5665036A JP 14050379 A JP14050379 A JP 14050379A JP 14050379 A JP14050379 A JP 14050379A JP S5665036 A JPS5665036 A JP S5665036A
- Authority
- JP
- Japan
- Prior art keywords
- compsn
- mixt
- ethylene
- thermoplastic polymer
- peroxide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
PURPOSE: To provide the titled compsn. having excellent physical properties and moldability, by a method wherein a mixt. of an elastomer such as butyl rubber and an ethylene-vinyl acetate copolymer is heated in the presence of an org. peroxide to produce a partially cured thermoplastic polymer compsn. and then a magnetic powder is dispersed in the partially cured thermoplastic polymer compsn.
CONSTITUTION: A mixt. of at least one elastomer (a) selected from a butyl rubber and an ethylene-propylene copolymer rubber and an ethylene-vinyl acetate copolymer (b) is heated with mixing in the presence of an org. peroxide (e.g. benzoyl peroxide) to partially cure the mixt. to such an extent that the reaction product does not lose good melt frow characteristics. Then a magnetic powder is dispersed in the resulting thermoplastic polymer compsn. having good melt flow characteristics and elastic properties to obtain the titled magnet comspn. The compsn. is subjected to orientation in the magnetic field in a molding stage to obtain a permanent magnet.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14050379A JPS5665036A (en) | 1979-11-01 | 1979-11-01 | Plastic magnetic composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14050379A JPS5665036A (en) | 1979-11-01 | 1979-11-01 | Plastic magnetic composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5665036A true JPS5665036A (en) | 1981-06-02 |
| JPS6148538B2 JPS6148538B2 (en) | 1986-10-24 |
Family
ID=15270147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14050379A Granted JPS5665036A (en) | 1979-11-01 | 1979-11-01 | Plastic magnetic composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5665036A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5567757A (en) * | 1995-07-18 | 1996-10-22 | Rjf International Corporation | Low specific gravity binder for magnets |
| WO2003025056A1 (en) * | 2001-09-14 | 2003-03-27 | Showa Denko K. K. | Resin composition |
| JP2003160735A (en) * | 2001-09-14 | 2003-06-06 | Showa Denko Kk | Resin composition |
| KR20030060728A (en) * | 2002-01-07 | 2003-07-16 | 주식회사 나노맥 | A Fe-powder containing rubber sheet composition |
-
1979
- 1979-11-01 JP JP14050379A patent/JPS5665036A/en active Granted
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5567757A (en) * | 1995-07-18 | 1996-10-22 | Rjf International Corporation | Low specific gravity binder for magnets |
| WO1997004468A1 (en) * | 1995-07-18 | 1997-02-06 | Rjf International Corporation | Low specific gravity binder for magnets |
| WO2003025056A1 (en) * | 2001-09-14 | 2003-03-27 | Showa Denko K. K. | Resin composition |
| JP2003160735A (en) * | 2001-09-14 | 2003-06-06 | Showa Denko Kk | Resin composition |
| KR20030060728A (en) * | 2002-01-07 | 2003-07-16 | 주식회사 나노맥 | A Fe-powder containing rubber sheet composition |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6148538B2 (en) | 1986-10-24 |
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