JPS59207980A - Friction material composition - Google Patents
Friction material compositionInfo
- Publication number
- JPS59207980A JPS59207980A JP8238383A JP8238383A JPS59207980A JP S59207980 A JPS59207980 A JP S59207980A JP 8238383 A JP8238383 A JP 8238383A JP 8238383 A JP8238383 A JP 8238383A JP S59207980 A JPS59207980 A JP S59207980A
- Authority
- JP
- Japan
- Prior art keywords
- pref
- composition
- polyimide resin
- potassium titanate
- iron powder
- 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
- 239000000203 mixture Substances 0.000 title claims abstract description 19
- 239000002783 friction material Substances 0.000 title claims description 15
- 239000000835 fiber Substances 0.000 claims abstract description 18
- 229920001721 polyimide Polymers 0.000 claims abstract description 14
- 239000009719 polyimide resin Substances 0.000 claims abstract description 13
- NJLLQSBAHIKGKF-UHFFFAOYSA-N dipotassium dioxido(oxo)titanium Chemical compound [K+].[K+].[O-][Ti]([O-])=O NJLLQSBAHIKGKF-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000002557 mineral fiber Substances 0.000 claims abstract description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000006087 Silane Coupling Agent Substances 0.000 abstract description 2
- 239000000378 calcium silicate Substances 0.000 abstract description 2
- 229910052918 calcium silicate Inorganic materials 0.000 abstract description 2
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 abstract description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 7
- 239000010425 asbestos Substances 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 229910052895 riebeckite Inorganic materials 0.000 description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229920000877 Melamine resin Polymers 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000000748 compression moulding Methods 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 239000005011 phenolic resin Substances 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 241000406668 Loxodonta cyclotis Species 0.000 description 1
- 239000004640 Melamine resin Substances 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000007822 coupling agent Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012770 industrial material Substances 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
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- CAQIWIAAHXOQOS-UHFFFAOYSA-N octadecanoic acid;propan-2-ol;titanium Chemical compound [Ti].CC(C)O.CCCCCCCCCCCCCCCCCC(O)=O.CCCCCCCCCCCCCCCCCC(O)=O.CCCCCCCCCCCCCCCCCC(O)=O CAQIWIAAHXOQOS-UHFFFAOYSA-N 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- FZHAPNGMFPVSLP-UHFFFAOYSA-N silanamine Chemical compound [SiH3]N FZHAPNGMFPVSLP-UHFFFAOYSA-N 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- -1 titanium dipotassium Chemical compound 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
- F16D69/02—Composition of linings ; Methods of manufacturing
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
【発明の詳細な説明】 本発明は摩擦材料用組成物に関する。[Detailed description of the invention] The present invention relates to a composition for friction materials.
従来、フェノール樹脂、エポキシ尉脂、メラミン樹脂な
どの合成樹脂と石綿のような鉱物繊維とを含む組成物は
種々の連動体の制動のためのＦＡ”Ｌ ｔＪＡ材料に用
いられているが、そのような組成物は３５０宅以上の温
度で該組成物中の合成樹脂が劣化すると共に石綿が結晶
水を消失するためにｉｆｆ摩擦性能が一急、激に減少す
るという欠点を有する。したがって、そのような組成物
を高速度、高負荷下の制動のための摩擦材料として用い
るばあい、たとえば航空機の着陸時の制動または高速度
走行中の自動車の制御に該組成物をブレーキ材料とし°
Ｃ用いるばあい、該組成物からなる摩擦材料が６５０°
０以上の高温になるのでブレーキ性能が低下することに
なり極めて危険である。また石綿を鉱物繊維として含有
する組成物をブレーキ材料に用いるばあい、該組成物の
摩耗と共に石綿が飛散し身体に悪杉響を及ぼし好ましく
ない。Conventionally, compositions containing synthetic resins such as phenolic resins, epoxy resins, and melamine resins and mineral fibers such as asbestos have been used as FA''LtJA materials for braking various interlocking bodies. Such a composition has the disadvantage that the synthetic resin in the composition deteriorates at temperatures above 350 °C, and asbestos loses crystallization water, resulting in a sudden and drastic decrease in IF friction performance. When such a composition is used as a friction material for braking at high speeds and under high loads, for example, the composition can be used as a brake material for braking during landing of an aircraft or for controlling a car while driving at high speed.
When C is used, the friction material made of the composition has an angle of 650°.
Since the temperature reaches 0 or higher, brake performance deteriorates, which is extremely dangerous. Furthermore, when a composition containing asbestos as mineral fiber is used as a brake material, the asbestos scatters as the composition is worn out, giving the body an undesirable effect.
本発明者らは叙上の事情に鐙み、従来の摩擦材料用組成
物を改良すべく鋭惹研究を重ねた結果、ポリイミド樹脂
にチタン酸カリウム繊維および（または）加工鉱物繊維
と鉄粉とを配合することを特徴とする摩擦材料用組成物
が、高速度および高負荷下においても優れた対摩耗性能
を発揮することを見出し、本発明を完成するにいたった
。The inventors of the present invention were aware of the above circumstances, and as a result of intensive research to improve the conventional composition for friction materials, the present inventors added potassium titanate fiber and/or processed mineral fiber and iron powder to polyimide resin. It was discovered that a friction material composition characterized by containing the following exhibits excellent anti-wear performance even under high speeds and high loads, leading to the completion of the present invention.
なお、ここでいう摩擦材料とはたとえばプレー；トのラ
イニングやクラッチの７エーシングとして各＋ＩＡ＋！
送機械や産業機械などに使用される工業材料を意味する
。本発明に用いるポリイミド樹脂は酸イミド結合をその
主鎖中に有する高分子化合物であって、耐熱性、機械的
強度、潤滑性、低摩擦性および耐摩耗性に優れている。In addition, the friction materials mentioned here include, for example, the lining of a plate or the lining of a clutch.
Refers to industrial materials used in transport machinery, industrial machinery, etc. The polyimide resin used in the present invention is a polymer compound having an acid imide bond in its main chain, and is excellent in heat resistance, mechanical strength, lubricity, low friction, and wear resistance.
本発明においてはそれらポリイミド樹脂の優れた特徴を
維持しながら、０１−０．４の適度な摩擦係数と対摩耗
性を付与した摩擦材料を提供するものである。またポリ
イミド樹脂を単独で用いるほかにフェノール樹脂、エポ
キシ樹脂、メラミン樹脂などを必要に応じて併用するこ
とも可能である。The present invention provides a friction material which has an appropriate friction coefficient of 01-0.4 and wear resistance while maintaining the excellent characteristics of these polyimide resins. In addition to using polyimide resin alone, it is also possible to use phenol resin, epoxy resin, melamine resin, etc. in combination as necessary.
本発明に用いるチタンに２カリウム繊維としては、一般
式、Ｋ２Ｏ・ｎ （Ｔ ｉＯ２）またはに２０ ’ ｎ
（Ｔ ｉ Ｏ２）・２ Ｈ２０（式中、ｎは２〜８の
整数を表わすンで示されるチタン酸カリウムの短結晶繊
維があげられ、好適には藺品名Ｔ工ＳＭＯで市販されて
いるチタン酸カリウム繊維（大球化学薬品■製、平均繊
維径０．２〜０．５μｍ１平均繊維長１０〜２０μｍ１
アスペクト比２０〜１００〕がそのまま使用できる。ま
たアミノシランなどのシランカップリング剤、イソプロ
ピルトリステアロイルチタネートなどのチタネートカッ
プリング剤で表面処理したチタン酸カリウム繊維を使用
すると、無処理のチタン酸カリウム繊維を使用したばあ
いよりえられる摩擦材料の耐摩耗性が改良され機械的強
度も向上することがある。The titanium dipotassium fiber used in the present invention has the general formula, K2O・n (T iO2) or ni20'n
Examples include short crystal fibers of potassium titanate represented by (T i O2) 2 H20 (where n represents an integer from 2 to 8), preferably titanium titanate commercially available under the trade name Tko SMO. Acid potassium fiber (manufactured by Daikyu Chemical ■, average fiber diameter 0.2-0.5 μm 1 average fiber length 10-20 μm 1
aspect ratio of 20 to 100] can be used as is. Furthermore, when using potassium titanate fibers whose surface has been treated with a silane coupling agent such as aminosilane or a titanate coupling agent such as isopropyl tristearoyl titanate, the resistance of the friction material obtained is greater than when using untreated potassium titanate fibers. Abrasion resistance may be improved and mechanical strength may also be improved.
本発明に用いる加工鉱物繊維とは、化学的にはケイ酸カ
ルシウムを主成分とし、酸化アルミニウム、酸化マグネ
シウムなどを副成分とするプロセスド・ミネラル・ファ
イバーと呼ばれるもので、米国のジム・ウォルター・リ
ソ−シーズ（Ｊｉｍ Ｗａｌ、ｔｅｒ Ｒｅ５ｏｕｒｃ
ｅｓＪ社で製造されている（商品名ＰＭＩＦ ）繊維径
１〜１０μｍ１平均繊維長２７５μｍ１アスペクト比４
０〜６０の鉱物繊維である。The processed mineral fiber used in the present invention is chemically called processed mineral fiber, which has calcium silicate as its main component and subcomponents such as aluminum oxide and magnesium oxide. Resources (Jim Wal, ter Re5ourc)
Manufactured by esJ (trade name: PMIF) Fiber diameter: 1 to 10 μm, Average fiber length: 275 μm, Aspect ratio: 4
0 to 60 mineral fiber.
本発明の組成物はポリイミド樹脂にチタン酸カリウム繊
維および（またはＪ加工鉱物繊維を５〜２０％（重斂％
、以下同様ン、鉄粉を１０〜６０％ｂ己合してなるのが
好ましい。The composition of the present invention contains potassium titanate fibers and (or J-processed mineral fibers) in a polyimide resin in an amount of 5 to 20% (weight percent).
It is preferable that 10 to 60% of iron powder be incorporated therein.
チタン酸カリウム繊維および（または］加工鉱ｖ／Ｊ繊
維が５％未満であるとポリイミド樹脂の耐摩耗性が低下
し機械的強度が不充分となり、一方２０％を超えて配合
してもそれ以上の効果が顕著にあられれない。If potassium titanate fibers and/or processed ore v/J fibers are less than 5%, the abrasion resistance of the polyimide resin will decrease and the mechanical strength will be insufficient; The effect is not noticeable.
また鉄粉が１０％未満であるとえられる摩擦材料の摩擦
係数が低下し、一方６０％を超えると１ｌｊｔ摩耗性が
低下し、いずれも好ましくない。Further, the friction coefficient of a friction material with iron powder content of less than 10% decreases, while if it exceeds 60%, the abrasion resistance decreases by 1ljt, both of which are unfavorable.
本発明の組成物のＭ ｊＭ材料への成形は、主に圧縮成
形によって行なわれる。Molding of the composition of the present invention into an M jM material is mainly carried out by compression molding.
以下本発明を実施例に基づいてさらに詳しく説明するが
、本発明はかかる実施例のみに限定されるものではない
。The present invention will be described in more detail below based on Examples, but the present invention is not limited to these Examples.
実施例１〜２
ポリイミド樹脂（ポリイミド２０８０、アップジョン（
Ｕｐｊ ６ｈｎ ）社製ンに鉄粉およびチタン酸カリウ
ム繊維（Ｔ工ＳＭＯＤ−１０２、大塚化学薬品■製ンま
たはＰＭＦを第１表に示す配合爪で混合し１２０°Ｏで
２４時間乾・燥後、あらかじめ加熱した金型に充填し、
プレス温度が上型６５０°ｏ１下型１５０°Ｃ１プレス
圧力３００．に、ｆ／ｍｒｎ 、加熱時間１０分間の条
件で圧縮成形することにより直径６ｍｍ ％高さ６ｍｍ
の試料をえた。かくしてえられた摩傑材料の摩擦・摩耗
特性を伊藤式摩擦・摩耗試験機を用い、相手材料として
５４５ａｉ （、ｒ工Ｓ Ｇ ３１０２機械構造用“炭
紫鋼）を使用して、摩擦係数（ｆｉ）、比厚耗量（ｍｍ
／ｋ ９ ・ｋｍ ） 、相手材対比摩耗ｈｋ （ｍｍ
／に９Ｈｋｍ ）および限界Ｐｖ値（ｋｔｐｆ／ａｍ
−ａｍ／Ｐ）ｔｔ測測定ることにより評価した。Examples 1-2 Polyimide resin (Polyimide 2080, Upjohn (
Iron powder and potassium titanate fiber (T-KO SMOD-102, manufactured by Otsuka Chemical Co., Ltd. or PMF were mixed with the compound manufactured by Upj 6hn) using a blender as shown in Table 1, and dried at 120°O for 24 hours. , fill the pre-heated mold,
The press temperature is 650°C for the upper mold, 150°C for the lower mold, and 300°C for the press pressure. By compression molding under the conditions of f/mrn and heating time of 10 minutes, the diameter was 6 mm and the height was 6 mm.
Samples were obtained. The friction and wear characteristics of the thus obtained maketsu material were measured using an Ito type friction and wear tester, and using 545ai (R Engineering SG 3102 “charcoal purple steel for mechanical structures”) as the mating material, the friction coefficient ( fi), specific wear amount (mm
/k 9 ・km), wear hk (mm
/9Hkm) and limit Pv value (ktpf/am
-am/P)tt measurement.
結果を第１表に示すっ
比較例１〜４
実施例１〜２で用いたのと同じポリイミド樹脂単独、お
よび該ポリイミド樹脂９０％に鉄粉、Ｔ工５ｌｖｉＯＤ
ｊ０２またはＰＭＦをそれぞれ１０％配合したものを
実施例１〜２と同じようにして圧縮成形し試料をえた。The results are shown in Table 1. Comparative Examples 1 to 4 The same polyimide resin used in Examples 1 to 2 alone, and 90% of the polyimide resin containing iron powder and T-5lviOD
A sample containing 10% j02 or PMF was compression molded in the same manner as in Examples 1 and 2.
かくしてえられた試料について実施例１〜２と同様にし
てその摩擦・摩耗特性を評価した。The friction and wear characteristics of the thus obtained samples were evaluated in the same manner as in Examples 1 and 2.
結果を第１表に示す。The results are shown in Table 1.
第１表から明らかなように比較例１〜４でえられた試料
では摩擦係数が０．６以下と小さく、充分な制動効果が
期待できない。As is clear from Table 1, the samples obtained in Comparative Examples 1 to 4 had a small friction coefficient of 0.6 or less, and a sufficient braking effect could not be expected.
それに対して実施例１〜２でえられた本発明による摩擦
材料では摩擦係数が大きく、かつ該摩擦材料自体の比摩
耗量および相手材対比摩耗量が比較的小さい。また限界
Ｐｖ値もポリイミド樹脂単独よりなる試料に比較してか
なり向上しており、本発明の組成物からえられる摩擦材
料が全体的に優れた特性を有することを示している。In contrast, the friction materials according to the present invention obtained in Examples 1 and 2 have a large coefficient of friction, and the specific wear amount of the friction material itself and the wear amount relative to the mating material are relatively small. Furthermore, the limit Pv value was considerably improved compared to the sample made of polyimide resin alone, indicating that the friction material obtained from the composition of the present invention has excellent properties overall.
特許出願人 大塚化学薬品株式会社
代理人弁理士 朝 日 奈 宗 太ゴ壬Ｉｖ８字市
、正ｆＪ３’ （方式）％式％］
１小件の表示
１）１１和！５８年特ｔ′［願第８２３８３８２発明の
名称
Ｉｌｆ瞭拐わｌ ｆｆＪ １１成物
３補正をする名
事件との関係 ’ｌ′！ｌ’ ｆｆｌ’ｌ
出 願 人４代理人 〒５４０
５袖ｉ−のス・１象
（１） 明 ９川 Ｊ斗
６補正の内容
（１）明細ｊむの浄４（（内容に変更なし）７添イ」刀
類の目録
（１）明 ■ｌ Ｆ！３１通Patent Applicant Otsuka Chemical Co., Ltd. Representative Patent Attorney Asahi Na So Taigo Iv8 character city, positive fJ3' (method) % formula %] 1 small item display 1) 11 sum! 58 year special t' [Application No. 8238382 Name of invention Ilf clarification l ffJ 11 Product 3 Relationship with famous case for amendment 'l'! l'ffl'l
Applicant 4th agent 540 5 Sleeve i-nosu 1 elephant (1) Akira 9 River Jto 6 Contents of amendment (1) Particulars J Muno Jo 4 ((No change in content) 7 Soe I" sword Category list (1) Akira ■l F! 31 letters
Claims (1)
たは）加工鉱物繊維と鉄粉とを配合したことを特徴とす
る摩擦材料用組成物。 ２ チタン酸カリウム繊維および（または）加工鉱物繊
維の配合量が５〜２０重量％、鉄粉の配合量が１０〜６
０重量％である特許請求の範囲第１項記載の摩擦材料用
組成物。[Scope of Claims] 1. A composition for friction materials, characterized in that potassium titanate fibers and/or processed mineral fibers and iron powder are blended with a polyimide resin. 2. The amount of potassium titanate fiber and/or processed mineral fiber is 5 to 20% by weight, and the amount of iron powder is 10 to 6% by weight.
The composition for a friction material according to claim 1, wherein the content is 0% by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8238383A JPS59207980A (en) | 1983-05-11 | 1983-05-11 | Friction material composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8238383A JPS59207980A (en) | 1983-05-11 | 1983-05-11 | Friction material composition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59207980A true JPS59207980A (en) | 1984-11-26 |
Family
ID=13773057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8238383A Pending JPS59207980A (en) | 1983-05-11 | 1983-05-11 | Friction material composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59207980A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62132960A (en) * | 1985-12-06 | 1987-06-16 | Ube Ind Ltd | Polyimide resin formed body |
| JPS62207365A (en) * | 1986-03-07 | 1987-09-11 | Mitsui Toatsu Chem Inc | Resin composition having excellent platability |
| JPH01313558A (en) * | 1988-06-10 | 1989-12-19 | Otsuka Chem Co Ltd | Polyether imide resin composition |
| US5258441A (en) * | 1990-01-08 | 1993-11-02 | Mitsui Toatsu Chemicals, Inc. | Polyimide based friction material and preparation process of the material |
| CN101555919A (en) * | 2009-01-25 | 2009-10-14 | 瑞阳汽车零部件（仙桃）有限公司 | High efficient ceramic brake pad |
| JP2009249454A (en) * | 2008-04-03 | 2009-10-29 | Toyota Motor Corp | Frictional material |
| JP2010090333A (en) * | 2008-10-10 | 2010-04-22 | Toyota Motor Corp | Friction pair |
| WO2019082350A1 (en) * | 2017-10-26 | 2019-05-02 | 日立化成株式会社 | Frictional member, and frictional material composition and frictional material for lower-layer material |
-
1983
- 1983-05-11 JP JP8238383A patent/JPS59207980A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62132960A (en) * | 1985-12-06 | 1987-06-16 | Ube Ind Ltd | Polyimide resin formed body |
| JPS62207365A (en) * | 1986-03-07 | 1987-09-11 | Mitsui Toatsu Chem Inc | Resin composition having excellent platability |
| JPH01313558A (en) * | 1988-06-10 | 1989-12-19 | Otsuka Chem Co Ltd | Polyether imide resin composition |
| US5258441A (en) * | 1990-01-08 | 1993-11-02 | Mitsui Toatsu Chemicals, Inc. | Polyimide based friction material and preparation process of the material |
| JP2009249454A (en) * | 2008-04-03 | 2009-10-29 | Toyota Motor Corp | Frictional material |
| JP2010090333A (en) * | 2008-10-10 | 2010-04-22 | Toyota Motor Corp | Friction pair |
| CN101555919A (en) * | 2009-01-25 | 2009-10-14 | 瑞阳汽车零部件（仙桃）有限公司 | High efficient ceramic brake pad |
| WO2019082350A1 (en) * | 2017-10-26 | 2019-05-02 | 日立化成株式会社 | Frictional member, and frictional material composition and frictional material for lower-layer material |
| CN111247224A (en) * | 2017-10-26 | 2020-06-05 | 日立化成株式会社 | Friction member, friction material composition for underlayer material, and friction material |
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