JPS62250043A - Magnetic rubber composition - Google Patents
Magnetic rubber compositionInfo
- Publication number
- JPS62250043A JPS62250043A JP61095074A JP9507486A JPS62250043A JP S62250043 A JPS62250043 A JP S62250043A JP 61095074 A JP61095074 A JP 61095074A JP 9507486 A JP9507486 A JP 9507486A JP S62250043 A JPS62250043 A JP S62250043A
- Authority
- JP
- Japan
- Prior art keywords
- rubber
- magnetic
- rubber composition
- magnetic rubber
- urea
- 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.)
- Pending
Links
- 229920001971 elastomer Polymers 0.000 title claims abstract description 25
- 239000005060 rubber Substances 0.000 title claims abstract description 25
- 239000000203 mixture Substances 0.000 title claims abstract description 17
- 150000003672 ureas Chemical class 0.000 claims abstract description 9
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 5
- 239000000696 magnetic material Substances 0.000 claims abstract description 4
- 125000000217 alkyl group Chemical group 0.000 claims abstract description 3
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical group [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 4
- 239000011593 sulfur Substances 0.000 claims description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical group [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 2
- 229910052739 hydrogen Inorganic materials 0.000 claims description 2
- 239000001257 hydrogen Substances 0.000 claims description 2
- 239000001301 oxygen Chemical group 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- 238000005260 corrosion Methods 0.000 abstract description 10
- 230000007797 corrosion Effects 0.000 abstract description 10
- 238000002845 discoloration Methods 0.000 abstract description 8
- 229910052751 metal Inorganic materials 0.000 abstract description 5
- 239000002184 metal Substances 0.000 abstract description 5
- 229910000859 α-Fe Inorganic materials 0.000 abstract description 4
- PDQAZBWRQCGBEV-UHFFFAOYSA-N Ethylenethiourea Chemical compound S=C1NCCN1 PDQAZBWRQCGBEV-UHFFFAOYSA-N 0.000 abstract description 3
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 abstract description 2
- YAMHXTCMCPHKLN-UHFFFAOYSA-N imidazolidin-2-one Chemical compound O=C1NCCN1 YAMHXTCMCPHKLN-UHFFFAOYSA-N 0.000 abstract description 2
- 229920000126 latex Polymers 0.000 abstract description 2
- 239000004816 latex Substances 0.000 abstract description 2
- 229910052748 manganese Inorganic materials 0.000 abstract description 2
- 239000011572 manganese Substances 0.000 abstract description 2
- AJCDFVKYMIUXCR-UHFFFAOYSA-N oxobarium;oxo(oxoferriooxy)iron Chemical compound [Ba]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O AJCDFVKYMIUXCR-UHFFFAOYSA-N 0.000 abstract description 2
- 229920001195 polyisoprene Polymers 0.000 abstract description 2
- 229920000642 polymer Polymers 0.000 abstract description 2
- 229920003048 styrene butadiene rubber Polymers 0.000 abstract description 2
- 244000043261 Hevea brasiliensis Species 0.000 abstract 1
- 238000013329 compounding Methods 0.000 abstract 1
- 229920003052 natural elastomer Polymers 0.000 abstract 1
- 229920001194 natural rubber Polymers 0.000 abstract 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 8
- 239000010949 copper Substances 0.000 description 8
- 229910052802 copper Inorganic materials 0.000 description 8
- 229910000881 Cu alloy Inorganic materials 0.000 description 4
- 229920000459 Nitrile rubber Polymers 0.000 description 3
- 229920001084 poly(chloroprene) Polymers 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- 229920002943 EPDM rubber Polymers 0.000 description 2
- 239000005062 Polybutadiene Substances 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 229920003051 synthetic elastomer Polymers 0.000 description 2
- JAEZSIYNWDWMMN-UHFFFAOYSA-N 1,1,3-trimethylthiourea Chemical compound CNC(=S)N(C)C JAEZSIYNWDWMMN-UHFFFAOYSA-N 0.000 description 1
- KWPNNZKRAQDVPZ-UHFFFAOYSA-N 1,3-bis(2-methylphenyl)thiourea Chemical compound CC1=CC=CC=C1NC(=S)NC1=CC=CC=C1C KWPNNZKRAQDVPZ-UHFFFAOYSA-N 0.000 description 1
- ZWAVGZYKJNOTPX-UHFFFAOYSA-N 1,3-diethylurea Chemical compound CCNC(=O)NCC ZWAVGZYKJNOTPX-UHFFFAOYSA-N 0.000 description 1
- ZMGMDXCADSRNCX-UHFFFAOYSA-N 5,6-dihydroxy-1,3-diazepan-2-one Chemical class OC1CNC(=O)NCC1O ZMGMDXCADSRNCX-UHFFFAOYSA-N 0.000 description 1
- 229910001316 Ag alloy Inorganic materials 0.000 description 1
- 239000004709 Chlorinated polyethylene Substances 0.000 description 1
- KFFQABQEJATQAT-UHFFFAOYSA-N N,N'-dibutylthiourea Chemical compound CCCCNC(=S)NCCCC KFFQABQEJATQAT-UHFFFAOYSA-N 0.000 description 1
- FLVIGYVXZHLUHP-UHFFFAOYSA-N N,N'-diethylthiourea Chemical compound CCNC(=S)NCC FLVIGYVXZHLUHP-UHFFFAOYSA-N 0.000 description 1
- 239000006057 Non-nutritive feed additive Substances 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- BFHWBWYPIXAKFE-UHFFFAOYSA-N [Co].[Cs] Chemical compound [Co].[Cs] BFHWBWYPIXAKFE-UHFFFAOYSA-N 0.000 description 1
- 229920000800 acrylic rubber Polymers 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- 229920005549 butyl rubber Polymers 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- KPLQYGBQNPPQGA-UHFFFAOYSA-N cobalt samarium Chemical compound [Co].[Sm] KPLQYGBQNPPQGA-UHFFFAOYSA-N 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 229910001651 emery Inorganic materials 0.000 description 1
- 229920005558 epichlorohydrin rubber Polymers 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 229920001973 fluoroelastomer Polymers 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 229920002681 hypalon Polymers 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000002574 poison Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920002857 polybutadiene Polymers 0.000 description 1
- 229910000938 samarium–cobalt magnet Inorganic materials 0.000 description 1
- -1 stearic acid Chemical class 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 1
- 150000004763 sulfides Chemical class 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
- 239000012936 vulcanization activator Substances 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/032—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials
- H01F1/10—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials non-metallic substances, e.g. ferrites, e.g. [(Ba,Sr)O(Fe2O3)6] ferrites with hexagonal structure
- H01F1/11—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials non-metallic substances, e.g. ferrites, e.g. [(Ba,Sr)O(Fe2O3)6] ferrites with hexagonal structure in the form of particles
- H01F1/113—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials non-metallic substances, e.g. ferrites, e.g. [(Ba,Sr)O(Fe2O3)6] ferrites with hexagonal structure in the form of particles in a bonding agent
- H01F1/117—Flexible bodies
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Hard Magnetic Materials (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の目的〕
本発明は、ゴムと磁性材料から寿る混合物が、接触する
金属に対して、変色あるいは腐食を防止する磁性ゴム組
成物に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] The present invention relates to a magnetic rubber composition in which a mixture of rubber and a magnetic material prevents discoloration or corrosion of metals with which it comes into contact.
従来、ドアバッキング、ファスナー、毒務用品、家具、
電気部品、玩具などに磁性ゴムが広い分野で使用されて
おり、現代生活に欠かすことのできたいものに寿、：）
ている。しかし橙から、磁性ゴムと銅、銅合金、銀寿ど
とが接触または隣接するような場合、イオウとの反応で
硫化物が生成するだめこれらの金属が変色したり、更に
は腐食が起こり、導電性や商品価値の低下を招き、つい
には使用に耐えないまでに至らしめる。そこで、これら
の分野から変色や腐食を防止する方法が強く要請されて
いる。その防止方法として銅、銅合金、銀などを前もっ
て表面処理しているが、工程数が多く作業効率の低下を
余儀なくされていた。また、表面処理を行うに当たり、
金属表面のごみ、よごれ、傷などで、ピンホールを生じ
易く、その上組み立て、輸送、使用時などに傷がつき易
く、これらのピンホール、傷などから変色、腐食が始ま
るとＶ）う欠点があった。Conventionally, door backings, fasteners, poison supplies, furniture,
Magnetic rubber is used in a wide range of fields such as electrical parts and toys, and has become an indispensable part of modern life.
ing. However, when magnetic rubber and copper, copper alloys, silver alloys, etc. come into contact with or are adjacent to each other, sulfides are generated due to the reaction with sulfur, causing discoloration of these metals and even corrosion. This leads to a decrease in conductivity and commercial value, and eventually makes it unusable. Therefore, there is a strong demand for a method to prevent discoloration and corrosion from these fields. To prevent this, copper, copper alloy, silver, etc. are surface-treated in advance, but this requires a large number of steps and inevitably reduces work efficiency. In addition, when performing surface treatment,
Dust, dirt, scratches, etc. on the metal surface easily cause pinholes, and it is also easy to get scratched during assembly, transportation, use, etc., and these pinholes and scratches can cause discoloration and corrosion. was there.
本発明者らは、これらの点に鑑み鋭意研究をした結果、
下記の一般式で示される尿素誘導体をゴムと磁性材料に
配合することによって、銅、銅合金および銀の表面での
変色や腐食にどを防止できることを見Ｖｈ出し、本発明
を完成するに至った。As a result of intensive research in view of these points, the present inventors found that
The inventors discovered that discoloration and corrosion on the surfaces of copper, copper alloys, and silver can be prevented by blending a urea derivative represented by the general formula below into rubber and magnetic materials, and have completed the present invention. Ta.
（式中Ｒ１〜６はそれぞれ独立して水素、アルキル基を
表わし、Ｘは硫黄または酸素を表わす。）本発明の尿素
誘導体としては、工業的に市販されているエチレンチオ
尿素、エチレン尿素が特に好ましく、変色や腐食防止に
驚くべき効果を示した。他の非環状尿素誘導体としては
、例えば、Ｎ。(In the formula, R1 to R6 each independently represent hydrogen or an alkyl group, and X represents sulfur or oxygen.) As the urea derivative of the present invention, commercially available ethylenethiourea and ethyleneurea are particularly preferred. , showed surprising effects in preventing discoloration and corrosion. Other non-cyclic urea derivatives include, for example, N.
■−ジフェニルチオ尿素、Ｎ、Ｎ’−ジオルトトリルチ
オ尿素、Ｎ、Ｎ’−ジエチルチオ尿素、Ｎ、 Ｎ’−ジ
プチノ・チオ尿素、 Ｎ、 Ｎ’−ジエチル尿素 Ｎ。-Diphenylthiourea, N,N'-diorthotolylthiourea, N,N'-diethylthiourea, N,N'-diptinothiourea, N,N'-diethylurea N.
Ｎ′−ジメチル尿素などがあげられるが、これらはいず
れも本発明の目的を達成には不充分でありだ。Examples include N'-dimethylurea, but none of these are sufficient to achieve the object of the present invention.
このことは理論上説明できない現象である。This is a phenomenon that cannot be explained theoretically.
本発明の磁性ゴム組成物に含有される尿素誘導体の添加
量は、特に制約は受けないが、ゴム１００部当たり、０
．０１〜５部、好ましくは０．０１〜２．０部である。The amount of the urea derivative contained in the magnetic rubber composition of the present invention is not particularly limited, but per 100 parts of rubber,
．． 01 to 5 parts, preferably 0.01 to 2.0 parts.
本発明の基体となるゴムとしては、例えは、天然コム（
ＮＲ） 、ポリイソプレンゴム（ＩＲ）、スチレン−ブ
タジェンゴム（ＳＢＲ） 、ポリブタジェンゴム（ＢＲ
） 、アクリロニトリル−ブタジェンゴム（ＮＢＲ）、
クロロプレンゴム（ＣＲ）、アクリルゴム（ＡＣＭ、Ａ
ＮＭ）、エチ、ｙ−プロピレンゴム（ＥＰＭ、ＥＰＤＭ
）、イソブチレン−イソプレンゴム（ＩＩＲ）、塩素化
ポリエチレン（ＣＭ）、クロロスルホン化ホリエチレン
（Ｃ３Ｍ’ｌ、フッ素ゴム（ＦＫＭ’） 、エピクロル
ヒドリンゴム（ＣＯ，ＥＣ０）およびそれらのブレンド
であってもより３゜
本発明の磁性ゴム組成物に配合される磁性材料としては
、例えば、バリウムフェライト、マンガンフェライト、
ストロンチウムフェライト、サマリウムコバルト、セシ
ウムコバルトにどが挙げられる。これらの添加量は中途
に応じて磁性の強弱や所要のゴム物性を考えて、酸化亜
鉛、酸化マグネシウムなどの金属酸化物のほか、カーボ
ンブラックなどの増量剤、ステアリン酸などの脂肪酸、
フェノール系およびアミン系老化防止剤、加硫活性剤、
硫黄、加硫促進剤、加工助剤その他の配合剤とともに適
量配合して加硫成形することができる。For example, natural comb (
NR), polyisoprene rubber (IR), styrene-butadiene rubber (SBR), polybutadiene rubber (BR)
), acrylonitrile-butadiene rubber (NBR),
Chloroprene rubber (CR), acrylic rubber (ACM, A
NM), ethyl, y-propylene rubber (EPM, EPDM
), isobutylene-isoprene rubber (IIR), chlorinated polyethylene (CM), chlorosulfonated polyethylene (C3M'l, fluororubber (FKM'), epichlorohydrin rubber (CO, EC0) and blends thereof. 3゜Magnetic materials to be blended into the magnetic rubber composition of the present invention include, for example, barium ferrite, manganese ferrite,
Examples include strontium ferrite, samarium cobalt, and cesium cobalt. The amount of these additions depends on the strength of magnetism and the required physical properties of the rubber, and in addition to metal oxides such as zinc oxide and magnesium oxide, fillers such as carbon black, fatty acids such as stearic acid, etc.
Phenolic and amine anti-aging agents, vulcanization activators,
It can be vulcanized and molded by adding appropriate amounts of sulfur, vulcanization accelerators, processing aids, and other additives.
なお、本発明の磁性ゴム組成物の混線方法は通常のゴム
の混練方法ＪＩＪえばオープンロール、バンバリーミキ
サ−、ニーダープレンダーを用いることができる。また
本発明の尿素誘導体は予め重合体溶液、ラテックス中に
添加してもよく、特に制約はない。The method for mixing the magnetic rubber composition of the present invention can be carried out using a conventional rubber kneading method such as JIJ, an open roll, a Banbury mixer, or a kneader-blender. Further, the urea derivative of the present invention may be added to the polymer solution or latex in advance, and there are no particular restrictions.
以下、実施例を示し本発明の詳細な説明するが、本発明
はこれらに限定されるものではたい。EXAMPLES Hereinafter, the present invention will be described in detail with reference to Examples, but the present invention is not limited thereto.
実施例 １、
第１表に示す配合処方に従って、６“＄ｘ１２’Ｌの試
験ロールを用い、６０℃で磁性ゴム組成物を作製した。Example 1 A magnetic rubber composition was prepared at 60°C using a 6"$ x 12'L test roll according to the formulation shown in Table 1.
この磁性ゴム組成物はシート出しの際厚さが５．０±Ｑ
、２ｍｍになるようにロール間げきを調節し、シート状
にロールから切り出し、平らな乾燥した金属面上で冷却
する。次に、このシートを１０Ｘｌｎｃｒｎ＆ｌｌり取
り、厚さ１ｍｍの銅板〔銅板（ＪＩＳＨ−３１０３）は
７Ｘ７ｃＩｎｌ／ｊ切断し、エメリー紙（ＪＩＳＥ−２
８０）で十分研摩仕上げした後、アセトンで脱脂した。This magnetic rubber composition has a thickness of 5.0±Q when sheeted.
, the roll gap was adjusted to 2 mm, the sheet was cut from the roll and cooled on a flat, dry metal surface. Next, take 10Xlncrn&ll of this sheet, cut it into a 1mm thick copper plate [copper plate (JISH-3103) is 7X7cInl/j, and cut it with emery paper (JISE-2
80) and then degreased with acetone.
〕を乗せ、５００ｇの荷重下関℃のギヤーオープン中ニ
２４時間放置した後、銅板を取り出し、銅板の腐食の度
合いを目視で観察した。その結果を第１表に示した。] was loaded and left for 24 hours while the gear was open at Shimonoseki °C under a load of 500 g, the copper plate was taken out and the degree of corrosion of the copper plate was visually observed. The results are shown in Table 1.
（１） 日本合成ゴム株式会社製ＳＢＨの商品名（２
） 戸田工業株式会社製フェライトの商品名（３）三
新化学工業株式会社製エチレンチオ尿素の商品名（４）
片山工業株式会社製試薬−級品
（５）三新化学工業株式会社製Ｎ、Ｎ’−ジェチルオ尿
素の商品名（６）三新化学工業株式会社製Ｎ、Ｎ’−ジ
プチルチオ尿素の商品名（７）三新化学工業株式会社製
トリメチルチオ尿素の商品名実施例 ２゜
第２表の磁性ゴム組成物９〜１６を用Ｖ１て実施例１と
同様に変色・腐食試験を行った。結果を第２表に示した
。(1) Product name of SBH manufactured by Japan Synthetic Rubber Co., Ltd. (2)
) Product name of ferrite manufactured by Toda Kogyo Co., Ltd. (3) Product name of ethylene thiourea manufactured by Sanshin Chemical Industry Co., Ltd. (4)
Reagent-grade product manufactured by Katayama Kogyo Co., Ltd. (5) Trade name of N,N'-dibutylthiourea manufactured by Sanshin Kagaku Kogyo Co., Ltd. (6) Trade name of N,N'-diptylthiourea manufactured by Sanshin Kagaku Kogyo Co., Ltd. ( 7) Trade name of trimethylthiourea manufactured by Sanshin Kagaku Kogyo Co., Ltd. Example 2゜Discoloration and corrosion tests were conducted in the same manner as in Example 1 using magnetic rubber compositions 9 to 16 shown in Table 2 as V1. The results are shown in Table 2.
（８） 日本合成ゴム株式会社製ＢＲの商品名（９）
日本ゼオン株式会社製ＮＢＲの商品名（１１三井石
油化学工業株式会社［ＥＰＤＭの商品名（１１）東洋曹
達工業株式会社製ＣＲの商品名〔発明の効果〕
実施例１．２で明らかなごとく、本発明の尿素誘導体を
含有した磁性ゴム組成物は、銅、銅合金の表面変色や腐
食を防止してＶ）ることから、本発明の産業的利用価値
は大なるものであることがわかる。(8) Product name of BR manufactured by Japan Synthetic Rubber Co., Ltd. (9)
Product name of NBR manufactured by Nippon Zeon Co., Ltd. (11) Mitsui Petrochemical Industries, Ltd. [Product name of EPDM (11) Product name of CR manufactured by Toyo Soda Kogyo Co., Ltd. [Effects of the invention] As is clear from Example 1.2, Since the magnetic rubber composition containing the urea derivative of the present invention prevents surface discoloration and corrosion of copper and copper alloys (V), it can be seen that the present invention has great industrial utility value.
Claims (1)
以上をゴムと磁性材料に含有してなる磁性ゴム組成物。 ▲数式、化学式、表等があります▼ （式中Ｒ＿１〜＿６はそれぞれ独立して水素、アルキル
基を表わし、Ｘは硫黄または酸素を表わす。）[Scope of Claims] A magnetic rubber composition comprising rubber and a magnetic material containing one or more urea derivatives represented by the following general formula. ▲There are mathematical formulas, chemical formulas, tables, etc.▼ (In the formula, R_1 to_6 each independently represent hydrogen or an alkyl group, and X represents sulfur or oxygen.)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61095074A JPS62250043A (en) | 1986-04-23 | 1986-04-23 | Magnetic rubber composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61095074A JPS62250043A (en) | 1986-04-23 | 1986-04-23 | Magnetic rubber composition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62250043A true JPS62250043A (en) | 1987-10-30 |
Family
ID=14127830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61095074A Pending JPS62250043A (en) | 1986-04-23 | 1986-04-23 | Magnetic rubber composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62250043A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996026189A1 (en) * | 1995-02-21 | 1996-08-29 | He Zhigiang Alex | Imidazolidinone derivatives as corrosion inhibitors |
| WO1998051902A1 (en) * | 1997-05-13 | 1998-11-19 | Baker Hughes Incorporated | Low toxicity corrosion inhibitor |
-
1986
- 1986-04-23 JP JP61095074A patent/JPS62250043A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996026189A1 (en) * | 1995-02-21 | 1996-08-29 | He Zhigiang Alex | Imidazolidinone derivatives as corrosion inhibitors |
| WO1998051902A1 (en) * | 1997-05-13 | 1998-11-19 | Baker Hughes Incorporated | Low toxicity corrosion inhibitor |
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