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    • 3. 发明授权
    • Heat-resistant lubricative resin composition
    • 耐热润滑树脂组合物
    • US5900453A
    • 1999-05-04
    • US678493
    • 1996-07-09
    • Masaki EgamiTakumi ShimokusuzonoHideyuki TsutsuiSadatoshi Inagaki
    • Masaki EgamiTakumi ShimokusuzonoHideyuki TsutsuiSadatoshi Inagaki
    • F16C33/20C08K7/02C08L27/18C08L67/00C08L67/02C08L73/00C08L73/02C08L79/08C08L81/00C08L81/06C08L87/00
    • C08L79/08
    • A heat-resistant, lubricative resin composition which can withstand temperatures of 250-270.degree. C., which is wear-resistant and low in friction, and which is less likely to attack a soft alloy such as aluminum alloy, and a high-performance, heat-resistant sliding bearing formed from the abovementioned heat-resistant, lubricative resin composition. The resin composition is made up of a thermoplastic polyimide resin represented by the following formula, and 8-38% by volume of tetrafluoroethylene resin and 3-25% by volume of aromatic polyester resin, ##STR1## (where X is a direct connection or a group selected from the group consisting of a hydrocarbon group having 1-10 carbon atoms, a hexafluorinated isopropylidene group, a carbonyl group, a thio group and a sulfonic group; R1-R4 are hydrogen, lower alkyl groups, lower alkoxy groups, chlorine or bromine, and may be the same or different from one another; Y is a tetravalent group selected from the group consisting of an aliphatic group having two or more carbon atoms, a cyclic aliphatic group, a monocyclic aromatic group, a condensed polycyclic aromatic group, a non-condensed polycyclic aromatic group made up of aromatic groups coupled together direcly or through crosslinking agents.)
    • 耐热,润滑的树脂组合物,其可耐受250-270℃的温度,其耐磨性和低摩擦力,并且不太可能侵蚀诸如铝合金的软合金和高性能 ,由上述耐热润滑树脂组合物形成的耐热滑动轴承。 树脂组合物由下式表示的热塑性聚酰亚胺树脂和8-38体积%的四氟乙烯树脂和3〜25体积%的芳香族聚酯树脂(其中X为直接连接或选择的基团)组成 由具有1-10个碳原子的烃基,六氟化亚异丙基,羰基,硫基和磺酸基组成的组; R 1 -R 4是氢,低级烷基,低级烷氧基,氯或溴, 并且可以相同或不同; Y是选自具有两个或更多个碳原子的脂肪族基团,环状脂肪族基团,单环芳香基团,缩合多环芳基基团,非碳原子数为4以下的四价基团, 由通过直接或通过交联剂偶联在一起的芳族基团构成的 - 缩合多环芳族基团。