公开(公告)号：US20240174943A1

公开(公告)日：2024-05-30

申请号：US18552377

申请日：2022-03-31

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Go WATANABE ,  Keisuke INDA ,  Kouji TAKANE

IPC: C10M169/06 ,  C10N20/02 ,  C10N20/06 ,  C10N30/06 ,  C10N50/10

CPC classification number: C10M169/06 ,  C10M2215/30 ,  C10M2217/0456 ,  C10N2020/02 ,  C10N2020/06 ,  C10N2030/06 ,  C10N2050/10

Abstract: A grease composition, containing a base oil (A), a urea-based thickener (B), and melamine cyanurate (C). Particles containing the urea-based thickener (B) in the grease composition satisfy the following requirement (I): the particles have an area-based arithmetic average particle diameter of 2.0 μm or less, as measured by a laser diffraction/scattering method.

公开(公告)号：US20240174942A1

公开(公告)日：2024-05-30

申请号：US18550984

申请日：2022-03-31

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Keisuke INDA ,  Go WATANABE ,  Kouji TAKANE

IPC: C10M169/02 ,  C10M115/08 ,  C10M143/04 ,  C10M169/06 ,  C10M171/06 ,  C10N20/02 ,  C10N20/04 ,  C10N40/04

CPC classification number: C10M169/02 ,  C10M115/08 ,  C10M143/04 ,  C10M169/06 ,  C10M171/06 ,  C10M2205/024 ,  C10M2215/28 ,  C10M2290/10 ,  C10N2020/02 ,  C10N2020/04 ,  C10N2040/04

Abstract: A grease composition, containing a base oil (A), a urea-based thickener (B), and a polymer compound (C). The particles that make up the urea-based thickener (B) in the grease composition satisfy the following requirement (I): the particles have an arithmetic average particle diameter on an area basis as measured by a laser diffraction/scattering method of 2.0 μm or less, and the polymer compound (C) has a number average molecular weight (Mn) of 30,000 or more and a molecular weight distribution (Mw/Mn) of 2.20 or less.