公开(公告)号：US20210222748A1

公开(公告)日：2021-07-22

申请号：US17214855

申请日：2021-03-27

申请人： NISSHINBO BRAKE, INC.

发明人： TAKAO TANAKA ,  TOMOMI IWAI ,  MITSUAKI YAGUCHI

IPC分类号： F16D69/02

摘要： [Object] This invention relates to a friction material used for a disc brake pad, which is manufactured by forming a non-asbestos-organic (NAO) friction material composition that contains a binder, a fiber base material, a friction modifier, a lubricant, a pH adjuster, and a filler, which satisfies requirements for the required braking effectiveness, crack resistance, and fade resistance.
[Means to Resolve] The friction material, which is made from the NAO friction material composition, which includes the binder, the fiber base material, the friction modifier, the lubricant, the pH adjuster, and the filler, where the friction modifier contains 5-30 mass % of a magnesium potassium titanate, which has the alkali elution rate of 0.1-2.5 mass %, relative to the total amount of the friction material composition. Preferably, in the friction material, the titanate is a magnesium potassium titanate, and as the friction modifier, 5-25 mass % of a zirconium oxide relative to the total amount of the friction material composition and 1-5 mass % of a fibrillated organic fiber as the fiber base material relative to the total amount of the friction material composition are contained.

公开(公告)号：US20190154094A1

公开(公告)日：2019-05-23

申请号：US16164743

申请日：2017-04-04

申请人： NISSHINBO BRAKE, INC.

发明人： TAKAO TANAKA ,  TOMOMI IWAI ,  MITSUAKI YAGUCHI

IPC分类号： F16D69/02

摘要： [Object] This invention relates to a friction material used for a disc brake pad, which is manufactured by forming a non-asbestos-organic (NAO) friction material composition that contains a binder, a fiber base material, a friction modifier, a lubricant, a pH adjuster, and a filler, which satisfies requirements for the required braking effectiveness, crack resistance, and fade resistance.[Means to Resolve] The friction material, which is made from the NAO friction material composition, which includes the binder, the fiber base material, the friction modifier, the lubricant, the pH adjuster, and the filler, where the friction modifier contains 5-30 mass % of a later crystal structure titanate, which has the alkali elution rate of 0.1-2.5 mass %, relative to the total amount of the friction material composition. Preferably, in the friction material, the titanate is a magnesium potassium titanate, and as the friction modifier, 5-25 mass % of a monoclinic crystal zirconium oxide relative to the total amount of the friction material composition and 1-5 mass % of a fibrillated organic fiber as the fiber base material relative to the total amount of the friction material composition are contained.