JPH0158220B2 - - Google Patents
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- Publication number
- JPH0158220B2 JPH0158220B2 JP59046225A JP4622584A JPH0158220B2 JP H0158220 B2 JPH0158220 B2 JP H0158220B2 JP 59046225 A JP59046225 A JP 59046225A JP 4622584 A JP4622584 A JP 4622584A JP H0158220 B2 JPH0158220 B2 JP H0158220B2
- Authority
- JP
- Japan
- Prior art keywords
- group
- formula
- hydrogen
- carbon number
- alkoxy group
- 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.)
- Expired
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- 125000000217 alkyl group Chemical group 0.000 claims description 21
- 229910052739 hydrogen Inorganic materials 0.000 claims description 21
- 239000001257 hydrogen Substances 0.000 claims description 21
- 239000000203 mixture Substances 0.000 claims description 21
- 125000003545 alkoxy group Chemical group 0.000 claims description 20
- 239000000057 synthetic resin Substances 0.000 claims description 20
- 229920003002 synthetic resin Polymers 0.000 claims description 20
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 18
- 229910052799 carbon Inorganic materials 0.000 claims description 18
- 239000000126 substance Substances 0.000 claims description 18
- 229920002647 polyamide Polymers 0.000 claims description 15
- 229910000859 α-Fe Inorganic materials 0.000 claims description 15
- 239000000843 powder Substances 0.000 claims description 13
- 125000004432 carbon atom Chemical group C* 0.000 claims description 12
- 239000004952 Polyamide Substances 0.000 claims description 11
- 125000003277 amino group Chemical group 0.000 claims description 11
- 150000002431 hydrogen Chemical class 0.000 claims description 11
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 10
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 238000000465 moulding Methods 0.000 description 10
- 230000007423 decrease Effects 0.000 description 6
- 239000006247 magnetic powder Substances 0.000 description 5
- 239000002245 particle Substances 0.000 description 4
- 239000000654 additive Substances 0.000 description 3
- 239000003085 diluting agent Substances 0.000 description 3
- 230000004907 flux Effects 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 229920002292 Nylon 6 Polymers 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 2
- 239000008188 pellet Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- YCMLQMDWSXFTIF-UHFFFAOYSA-N 2-methylbenzenesulfonimidic acid Chemical compound CC1=CC=CC=C1S(N)(=O)=O YCMLQMDWSXFTIF-UHFFFAOYSA-N 0.000 description 1
- 229920000571 Nylon 11 Polymers 0.000 description 1
- 229920000299 Nylon 12 Polymers 0.000 description 1
- 229920002302 Nylon 6,6 Polymers 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 238000003856 thermoforming Methods 0.000 description 1
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Hard Magnetic Materials (AREA)
Description
本発明は合成樹脂磁石組成物、及びそれからな
る合成樹脂磁石に関し、更に詳しくは従前のポリ
アミド系磁石に比し、著しく大なる最大エネルギ
ー積（以下、（BH）maxと記す）を有するポリ
アミド系合成樹脂磁石用組成物、ポリアミド系合
成樹脂磁石及びその製造方法に関するものであ
る。
磁石の磁気性能を表わす尺度として、（BH）
maxがあるが、これまでに提案されているポリ
アミド系合成樹脂磁石としては実質的に高々
（BH）max≦1.53メガガウスエルステツド（以
下、MGOeと記す）までしか得られていない。
一般は、（BH）maxは合成樹脂磁石中の磁性
体粉末含量に支配される。即ち、磁性体粉末含量
が多い程、高くなることが知られている。
然し乍ら、一般には磁性体粉末含量を増すと加
熱成形時の流動性が悪くなり、成形出来なくなる
か或いは成形出来たとしても磁場印加による配向
度（残留磁束密度を飽和磁束密度で除した値）は
極端に低下してしまい、その結果として（BH）
maxは逆に低下してしまう。
ポリアミド系合成樹脂磁石用組成物についても
同様であり、その改善策が特開昭54―109199、特
開昭55―91803等に提案されている。具体的には、
加熱成形時の流動性改善を目的としたステアリン
酸金属塩の添加（特開昭54―109199）或いはステ
アリン酸金属塩とトルエンスルホン酸アミドの組
合せ添加（特開昭55―91803）を内容とする。然
し乍ら、いずれの方法によつても磁気特性の向上
はせいぜい（BH）maxで1.52（特開昭54―
109199）、1.53（特開昭55―91803）までであり、
それ以上の向上は期待できないのが実情である。
本発明者らは、かかる実情に鑑み鋭意研究の結
果、特定化合物の添加により（BH）maxは従来
の水準をはるかに越え2.1MGOeと驚異的に大き
な（BH）maxが得られることを見出し、本発明
を完成させたものである。
即ち、本発明の第１はマグネトプラムバイト型
フエライト粉末と、式
（式中、R1はアミノ基、フエニル基、炭素数１
〜17のアルキル基、又は水素、ｍは０〜５、ｎは
０〜５、R2、R3、R4は炭素数１〜５のアルコキ
シ基を少なくとも１つ含みアルコキシ基以外は炭
素数１〜５のアルキル基又は水素を示す）で表わ
される物質と、ポリアミドとを基本成分としてな
るポリアミド系合成樹脂磁石組成物を内容とし、
本発明の第２はマグネトプラムバイト型フエライ
ト粉末と、式
（式中、R2はアミノ基、フエニル基、炭素数１
〜７のアルキル基、又は水素、ｍは０〜５、ｎは
０〜５、R2、R3、R4は炭素数１〜５のアルコキ
シ基を少なくとも１つ含みアルコキシ基以外は炭
素数１〜５のアルキル基又は水素を示す）で表わ
される物質と、ポリアミドとを基本成分とする組
成物からなる合成樹脂磁石を内容とし、本発明の
第３はマグネトプラムバイト型フエライト粉末
と、式
（式中、R1はアミノ基、フエニル基、炭素数１
〜17のアルキル基、又は水素、ｍは０〜５、ｎは
０〜５、R2、R3、R4は炭素数１〜５のアルコキ
シ基を少なくとも１つ含みアルコキシ基以外は炭
素数１〜５のアルキル基又は水素を示す）で表わ
される物質と合成樹脂を基本成分とする混合物を
加熱溶融下で磁場をかけた後冷却固化することを
特徴とする合成樹脂磁石の製造方法を内容とする
ものである。
本発明で用いられるマグネトプラムバイト型フ
エライト粉末としては、MO・nFe2O3（ＭはBa、
Srで、ｎは4.5〜6.5）なる組成の粉末が好適に選
ばれる。
本発明の組成物中の配合割合は（BH）maxを
1.6MGOe以上とする為には60体積パーセント以
上必要である。但し、72体積パーセントを越える
と溶融流動性が極端に低下し、成形し難くなるか
或いは成形できても配向度が低下する傾向を示
す。従つて、フエライト粉末の配合量は60〜72体
積パーセントが好適である。
本発明に用いられる特定物質は、式
で表わされるものであり、該式中R1はアミノ基、
フエニル基、炭素数１〜17のアルキル基、又は水
素、ｍは０〜５、ｎは０〜５であり、R2、R3、
R4は炭素数１〜５のアルコキシ基を少なくとも
１つ以上含みアルコキシ基以外は炭素数１〜５の
アルキル基又は水素であることを特徴とし、これ
らは単独又は混合して用いられる。上記物質の添
加量は0.1〜５体積パーセントが適当である。0.1
体積パーセント未満では混合体の溶融時の流動性
が極端に悪くなり、充分な効果を発揮し得ない。
又、５体積パーセント越えても効果の増大は極め
て僅かであり、コスト的に無意味である。更に、
該物質の構造によつては、多過ぎると逆に流動性
を阻害するものもある。
例えばＲにアミノ基をもつてきた場合、３体積
パーセントを越えると流動性の低下が観察され始
め、５体積パーセントを越えると極端な流動性の
低下をひきおこし、その為（BH）max値も
1.6MGOeを維持するのがやつとという結果とな
る。
上記特定物質の添加方法は特に制限されない
が、どちらかと云えば予めフエライト粉末に塗布
した方が、より少い添加量で効果が期待出来る。
塗布方法は該物質をそのまま添加、或いは稀釈剤
に稀釈した後添加し、回転刃ミキサー、リボンブ
レンダー等公知の混合方法が採用出来る。稀釈剤
を使用した場合は、処理後減圧、加熱等の適当な
方法で稀釈剤を除去しておく方が良い。
本発明で用いられるポリアミド系合成樹脂とし
ては、公知のポリアミドが使用できる。例えばポ
リアミド６、ポリアミド66、ポリアミド６、10、
ポリアミド11、ポリアミド12等、或いはそれらの
共重合体、或いは混合物が使用出来る。その配合
量は他の構成成分との関連で40〜28体積パーセン
トが好適である。尚、安定剤、抗酸化剤、滑剤等
の添加助剤は適宜目的に応じて添加出来る。
本発明組成物の好ましい成形方法は、上記組成
物を加熱溶融下で磁場をかけ、フエライト粒子を
配向させ、しかる後冷却固化させることを特徴と
するものであり、その成形形態は射出成形、押出
成形、プレス成形等公知の方法のいづれも使用で
きる。印加磁場の強さは、5000エルステツド以上
必要であり、望ましくは１万エルステツド、更に
望ましくは２万エルステツドである。
この様にして得られた高い（BH）maxをもつ
合成樹脂磁石は、リング状、歯車状、円盤状、各
種異型等、目的に応じて任意の形状に作ることが
出来る。従来の1.6MGOe以下のポリアミド系合
成樹脂に比べた場合の用途としては、モーター、
発電機、マグネツトロール、電子ブザー、スピー
カー、ヘツドホン、有極リレー、センサーマグネ
ツト等があげられ、特にこれらの分野での小型
化、性能向上（例えばモーターではトルクの向
上）への貢献が期待される。
本発明の特徴の１つは、前記した特定物質を添
加することであり、これにより磁性体粉末含量を
増大させても加熱、成形時の流動性を良好に保つ
ことが出来、従来以上のフエライト含率にしても
良好に成形出来る。又、加熱成形時の流動性が良
好ということは、フエライト粒子の回転を容易に
させることであり、磁場を印加した時のフエライ
ト粒子の配向度を著しく向上させることが出来る
ということになり、フエライト含率を増加出来る
ことと相乗して（BH）maxを驚異的に向上させ
ることが可能である。
以下、本発明を実施例、比較例を挙げて更に詳
細に説明するが、本発明はこれらにより何ら制限
されないことは云うまでもない。
実施例 １〜10
SrO・5.8Fe2O3を主体とするマグネトプラムバ
イト型フエライト粉末（平均粒径1.2μ、圧縮密度
3.28g／cm3、飽和磁束密度4500ガウス）を第１表
に記載した配合割合で特定物質、ポリアミド系合
成樹脂及び添加剤とを混合し32ミリ混練機で混レ
ンした後、冷却固化したものを粉砕しペレツト化
した。然る後、得られたペレツトを表１に記した
温度で加熱溶融させた状態で、第１表に記した磁
場を印加した後、冷却した。
その結果、第１表に記した通り、その最大エネ
ルギー積が1.6〜2.1MGOeと著ししく高いものが
得られた。
比較例 １〜３
本発明の特定物質を使用せずに、或いは公知の
添加剤を使用し、第１表に示した配合割合で実施
例と同じ操作を実施した。
その結果、得られた樹脂磁石の最大エネルギー
積はいずれも1.6未満であつた。
The present invention relates to a synthetic resin magnet composition and a synthetic resin magnet made from the same, and more specifically, the present invention relates to a synthetic resin magnet composition and a synthetic resin magnet made of the same. The present invention relates to a composition for a resin magnet, a polyamide synthetic resin magnet, and a method for manufacturing the same. As a measure of the magnetic performance of a magnet, (BH)
However, the polyamide-based synthetic resin magnets proposed so far have only been able to achieve a maximum of (BH)max≦1.53 Mega Gauss Oersted (hereinafter referred to as MGOe). Generally, (BH)max is controlled by the content of magnetic powder in the synthetic resin magnet. That is, it is known that the higher the magnetic powder content, the higher the magnetic powder content. However, in general, when the magnetic powder content is increased, the fluidity during hot molding deteriorates, and molding becomes impossible, or even if molding is possible, the degree of orientation (the value obtained by dividing the residual magnetic flux density by the saturation magnetic flux density) due to the application of a magnetic field decreases. As a result, (BH)
On the contrary, the max will decrease. The same applies to polyamide-based synthetic resin magnet compositions, and improvements thereto have been proposed in JP-A No. 54-109199 and JP-A No. 55-91803. in particular,
Addition of metal stearate for the purpose of improving fluidity during hot molding (JP 54-109199) or a combination of metal stearate and toluene sulfonamide (JP 55-91803) . However, with either method, the improvement in magnetic properties is at most 1.52 (BH) max (Japanese Patent Application Laid-open No.
109199), up to 1.53 (Unexamined Japanese Patent Publication No. 55-91803),
The reality is that no further improvement can be expected. In view of the above circumstances, the present inventors conducted intensive research and found that by adding a specific compound, an astonishingly large (BH)max of 2.1MGOe, which far exceeds the conventional level, can be obtained. This completes the present invention. That is, the first aspect of the present invention is magnetoplumbite-type ferrite powder and the formula (In the formula, R 1 is an amino group, a phenyl group, a carbon number 1
-17 alkyl group, or hydrogen, m is 0-5, n is 0-5, R 2 , R 3 , R 4 contains at least one alkoxy group having 1 to 5 carbon atoms, and all other than the alkoxy group have 1 carbon number A polyamide-based synthetic resin magnet composition containing as basic components a substance represented by an alkyl group or hydrogen of ~5) and polyamide,
The second aspect of the present invention is magnetoplumbite type ferrite powder and the formula (In the formula, R 2 is an amino group, a phenyl group, and has 1 carbon number.
-7 alkyl group or hydrogen, m is 0-5, n is 0-5, R 2 , R 3 , R 4 contains at least one alkoxy group having 1 to 5 carbon atoms, other than the alkoxy group has 1 carbon number The third aspect of the present invention is a synthetic resin magnet consisting of a composition whose basic components are a substance represented by the alkyl group or hydrogen shown in formula 5) and polyamide. (In the formula, R 1 is an amino group, a phenyl group, a carbon number 1
-17 alkyl group, or hydrogen, m is 0-5, n is 0-5, R 2 , R 3 , R 4 contains at least one alkoxy group having 1 to 5 carbon atoms, and all other than the alkoxy group have 1 carbon number The content includes a method for producing a synthetic resin magnet, which is characterized in that a mixture of a substance represented by a substance represented by an alkyl group or hydrogen (representing an alkyl group or hydrogen of 5) and a synthetic resin as a basic component is heated and melted, applied with a magnetic field, and then cooled and solidified. It is something to do. The magnetoplumbite type ferrite powder used in the present invention is MO・nFe 2 O 3 (M is Ba,
A powder having a composition of Sr (where n is 4.5 to 6.5) is preferably selected. The blending ratio in the composition of the present invention is (BH)max
In order to achieve 1.6 MGOe or more, 60 volume percent or more is required. However, if it exceeds 72 volume percent, the melt fluidity is extremely reduced, making it difficult to mold, or even if molding is possible, the degree of orientation tends to decrease. Therefore, the amount of ferrite powder blended is preferably 60 to 72 percent by volume. The specific substance used in the present invention has the formula In the formula, R 1 is an amino group,
a phenyl group, an alkyl group having 1 to 17 carbon atoms, or hydrogen, m is 0 to 5, n is 0 to 5, R 2 , R 3 ,
R 4 is characterized in that it contains at least one alkoxy group having 1 to 5 carbon atoms, and other than the alkoxy group is an alkyl group having 1 to 5 carbon atoms or hydrogen, and these may be used alone or in combination. The amount of the above-mentioned substance added is suitably 0.1 to 5% by volume. 0.1
If the amount is less than the volume percent, the fluidity of the mixture during melting will be extremely poor, and sufficient effects will not be exhibited.
Further, even if the amount exceeds 5% by volume, the increase in effectiveness is extremely small and is meaningless in terms of cost. Furthermore,
Depending on the structure of the substance, too much may actually inhibit fluidity. For example, when R has an amino group, a decrease in fluidity begins to be observed when the concentration exceeds 3% by volume, and an extreme decrease in fluidity occurs when the concentration exceeds 5% by volume, resulting in a decrease in the (BH) max value.
The result is that maintaining 1.6MGOe is a must. The method of adding the above-mentioned specific substance is not particularly limited, but if anything, the effect can be expected with a smaller amount of addition if it is applied to the ferrite powder in advance.
As for the coating method, the substance may be added as it is, or it may be diluted with a diluent and then added, and a known mixing method such as a rotary blade mixer or a ribbon blender can be employed. When a diluent is used, it is better to remove the diluent by an appropriate method such as reduced pressure or heating after treatment. As the polyamide synthetic resin used in the present invention, known polyamides can be used. For example, polyamide 6, polyamide 66, polyamide 6, 10,
Polyamide 11, polyamide 12, etc., a copolymer thereof, or a mixture thereof can be used. A suitable amount of the compound is 40 to 28 volume percent in relation to other components. Incidentally, additive aids such as stabilizers, antioxidants, and lubricants can be added as appropriate depending on the purpose. A preferred method for molding the composition of the present invention is characterized by applying a magnetic field to the composition while heating and melting it to orient the ferrite particles, and then cooling and solidifying the composition. Any known method such as molding or press molding can be used. The strength of the applied magnetic field must be 5,000 Oersted or more, preferably 10,000 Oersted, and more preferably 20,000 Oersted. The synthetic resin magnet with a high (BH)max obtained in this way can be made into any shape depending on the purpose, such as a ring shape, a gear shape, a disk shape, and various other shapes. Compared to conventional polyamide-based synthetic resins of 1.6MGOe or less, the applications include motors,
These include generators, magnet rolls, electronic buzzers, speakers, headphones, polarized relays, sensor magnets, etc., and are expected to contribute to miniaturization and improved performance (for example, increased torque in motors) in these fields. be done. One of the features of the present invention is the addition of the above-mentioned specific substance, which makes it possible to maintain good fluidity during heating and molding even when the content of magnetic powder is increased, making it possible to maintain better fluidity during heating and molding than before. It can be molded well regardless of the content. In addition, good fluidity during thermoforming means that the rotation of the ferrite particles is facilitated, and the degree of orientation of the ferrite particles when a magnetic field is applied can be significantly improved. Combined with the ability to increase the content, it is possible to dramatically improve (BH)max. Hereinafter, the present invention will be explained in more detail with reference to Examples and Comparative Examples, but it goes without saying that the present invention is not limited to these in any way. Examples 1 to 10 Magnetoplumbite type ferrite powder mainly composed of SrO・5.8Fe 2 O 3 (average particle size 1.2μ, compressed density
3.28g/cm 3 , saturation magnetic flux density 4500 Gauss), the specified substance, polyamide synthetic resin, and additives are mixed in the proportions listed in Table 1, mixed in a 32 mm kneader, and then cooled and solidified. was crushed into pellets. Thereafter, the obtained pellets were heated and melted at the temperatures listed in Table 1, and the magnetic fields listed in Table 1 were applied, followed by cooling. As a result, as shown in Table 1, a material with a maximum energy product of 1.6 to 2.1 MGOe was obtained, which was extremely high. Comparative Examples 1 to 3 The same operations as in Examples were carried out at the blending ratios shown in Table 1 without using the specific substance of the present invention or using known additives. As a result, the maximum energy products of the obtained resin magnets were all less than 1.6.
【表】【table】
Claims (1)
〜17のアルキル基、又は水素、ｍは０〜５、ｎは
０〜５、R2、R3、R4は炭素数１〜５のアルコキ
シ基を少なくとも１つ含みアルコキシ基以外は炭
素数１〜５のアルキル基又は水素を示す）で表わ
される物質と、ポリアミドとを基本成分としてな
る合成樹脂磁石用組成物。 ２ マグネトプラムバイト型フエライト粉末60〜
72体積パーセントと、式 （式中、R1はアミノ基、フエニル基、炭素数１
〜17のアルキル基、又は水素、ｍは０〜５、ｎは
０〜５、R2、R3、R4は炭素数１〜５のアルコキ
シ基を少なくとも１つ含みアルコキシ基以外は炭
素数１〜５のアルキル基又は水素を示す）で表わ
される物質0.1〜５体積パーセントと、ポリアミ
ド40〜28体積パーセントとを基本成分としてなる
特許請求の範囲第１項記載の組成物。 ３ マグネトプラムバイト型フエライト粉末と、 式 （式中、R1はアミノ基、フエニル基、炭素数１
〜17のアルキル基、又は水素、ｍは０〜５、ｎは
０〜５、R2、R3、R4は炭素数１〜５のアルコキ
シ基を少なくとも１つ含みアルコキシ基以外は炭
素数１〜５のアルキル基又は水素を示す）で表わ
される物質と、ポリアミドとを基本成分とする組
成物からなる合成樹脂磁石。 ４ マグネトプラムバイト型フエライト粉末60〜
72体積パーセントと、式 （式中、R1はアミノ基、フエニル基、炭素数１
〜17のアルキル基、又は水素、ｍは０〜５、ｎは
０〜５、R2、R3、R4は炭素数１〜５のアルコキ
シ基を少なくとも１つ含みアルコキシ基以外は炭
素数１〜５のアルキル基又は水素を示す）で表わ
される物質0.1〜５体積パーセントと、ポリアミ
ド40〜28体積パーセントとを基本成分とする組成
物である特許請求の範囲第３項記載の合成樹脂磁
石。 ５ マグネトプラムバイト型フエライト粉末と、 式 （式中、R1はアミノ基、フエニル基、炭素数１
〜17のアルキル基、又は水素、ｍは０〜５、ｎは
０〜５、R2、R3、R4は炭素数１〜５のアルコキ
シ基を少なくとも１つ含みアルコキシ基以外は炭
素数１〜５のアルキル基又は水素を示す）で表わ
される物質と、ポリアミドとを基本成分とする混
合物を加熱溶融下で磁場をかけた後冷却固化する
ことを特徴とする合成樹脂磁石の製造方法。 ６ マグネトプラムバイト型フエライト粉末60〜
72体積パーセントと、式 （式中、R1はアミノ基、フエニル基、炭素数１
〜17のアルキル基、又は水素、ｍは０〜５、ｎは
０〜５、R2、R3、R4は炭素数１〜５のアルコキ
シ基を少なくとも１つ含みアルコキシ基以外は炭
素数１〜５のアルキル基又は水素を示す）で表わ
される物質0.1〜５体積パーセントと、ポリアミ
ド40〜28体積パーセントとを基本成分とする混合
物である特許請求の範囲第５項記載の製造方法。[Claims] 1. Magnetoplumbite type ferrite powder, and the formula (In the formula, R 1 is an amino group, a phenyl group, a carbon number 1
-17 alkyl group, or hydrogen, m is 0-5, n is 0-5, R 2 , R 3 , R 4 contains at least one alkoxy group having 1 to 5 carbon atoms, and all other than the alkoxy group have 1 carbon number A composition for a synthetic resin magnet, which contains as basic components a substance represented by the following formula (representing an alkyl group or hydrogen) and polyamide. 2 Magnetoplum bite type ferrite powder 60~
72 volume percent and the formula (In the formula, R 1 is an amino group, a phenyl group, a carbon number 1
-17 alkyl group, or hydrogen, m is 0-5, n is 0-5, R 2 , R 3 , R 4 contains at least one alkoxy group having 1 to 5 carbon atoms, and all other than the alkoxy group have 1 carbon number 2. A composition according to claim 1, comprising as basic components 0.1 to 5 volume percent of a substance represented by ~5 alkyl groups or hydrogen) and 40 to 28 volume percent of polyamide. 3 Magnetoplumbite type ferrite powder and formula (In the formula, R 1 is an amino group, a phenyl group, a carbon number 1
-17 alkyl group, or hydrogen, m is 0-5, n is 0-5, R 2 , R 3 , R 4 contains at least one alkoxy group having 1 to 5 carbon atoms, and all other than the alkoxy group have 1 carbon number A synthetic resin magnet consisting of a composition whose basic components are a substance represented by 1 to 5 (representing an alkyl group or hydrogen) and polyamide. 4 Magnetoplum bite type ferrite powder 60~
72 volume percent and the formula (In the formula, R 1 is an amino group, a phenyl group, a carbon number 1
-17 alkyl group, or hydrogen, m is 0-5, n is 0-5, R 2 , R 3 , R 4 contains at least one alkoxy group having 1 to 5 carbon atoms, and all other than the alkoxy group have 1 carbon number 4. The synthetic resin magnet according to claim 3, which is a composition having as basic components 0.1 to 5 volume percent of a substance represented by 1 to 5 alkyl groups or hydrogen) and 40 to 28 volume percent of polyamide. 5 Magnetoplumbite type ferrite powder and formula (In the formula, R 1 is an amino group, a phenyl group, a carbon number 1
-17 alkyl group, or hydrogen, m is 0-5, n is 0-5, R 2 , R 3 , R 4 contains at least one alkoxy group having 1 to 5 carbon atoms, and all other than the alkoxy group have 1 carbon number A method for producing a synthetic resin magnet, which comprises: applying a magnetic field under heating and melting a mixture, the basic components of which are a substance represented by alkyl group or hydrogen represented by 5 to 5 (representing an alkyl group or hydrogen) and polyamide, and then cooling and solidifying the mixture. 6 Magnetoplum bite type ferrite powder 60~
72 volume percent and the formula (In the formula, R 1 is an amino group, a phenyl group, a carbon number 1
-17 alkyl group, or hydrogen, m is 0-5, n is 0-5, R 2 , R 3 , R 4 contains at least one alkoxy group having 1 to 5 carbon atoms, and all other than the alkoxy group have 1 carbon number 6. The method according to claim 5, which is a mixture whose basic components are 0.1 to 5 volume percent of a substance represented by .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4622584A JPS60188459A (en) | 1984-03-09 | 1984-03-09 | Composition for synthetic resin magnet, synthetic resin magnet composed of the same and production thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4622584A JPS60188459A (en) | 1984-03-09 | 1984-03-09 | Composition for synthetic resin magnet, synthetic resin magnet composed of the same and production thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60188459A JPS60188459A (en) | 1985-09-25 |
| JPH0158220B2 true JPH0158220B2 (en) | 1989-12-11 |
Family
ID=12741167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4622584A Granted JPS60188459A (en) | 1984-03-09 | 1984-03-09 | Composition for synthetic resin magnet, synthetic resin magnet composed of the same and production thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60188459A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63181403A (en) * | 1987-01-23 | 1988-07-26 | Shin Kobe Electric Mach Co Ltd | Resin magnet molding material |
| JPS63181402A (en) * | 1987-01-23 | 1988-07-26 | Shin Kobe Electric Mach Co Ltd | Resin magnet molding material |
| US5087302A (en) * | 1989-05-15 | 1992-02-11 | Industrial Technology Research Institute | Process for producing rare earth magnet |
| CN106674640A (en) * | 2016-12-22 | 2017-05-17 | 成都艾蒂浮兰科技有限公司 | Germanium energy far infrared latex product and manufacturing method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53131498A (en) * | 1977-04-20 | 1978-11-16 | Matsushita Electric Ind Co Ltd | Production of permanent magnet |
| JPS58158903A (en) * | 1982-03-16 | 1983-09-21 | Dainippon Ink & Chem Inc | Combined magnetic material |
| JPS5910202A (en) * | 1982-07-09 | 1984-01-19 | Dainippon Ink & Chem Inc | Composite magnetic material |
-
1984
- 1984-03-09 JP JP4622584A patent/JPS60188459A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53131498A (en) * | 1977-04-20 | 1978-11-16 | Matsushita Electric Ind Co Ltd | Production of permanent magnet |
| JPS58158903A (en) * | 1982-03-16 | 1983-09-21 | Dainippon Ink & Chem Inc | Combined magnetic material |
| JPS5910202A (en) * | 1982-07-09 | 1984-01-19 | Dainippon Ink & Chem Inc | Composite magnetic material |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60188459A (en) | 1985-09-25 |
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