公开(公告)号：US20240201626A1

公开(公告)日：2024-06-20

申请号：US18577649

申请日：2022-07-12

Applicant: POSCO CO., LTD.

Inventor： Sun-Hong Park ,  Jin-Tae Kim

IPC: G03G15/00 ,  G03G15/043 ,  G03G15/08 ,  G03G15/20 ,  G03G21/00 ,  G03G21/12

CPC classification number: G03G15/6591 ,  G03G15/0435 ,  G03G15/0806 ,  G03G15/2064 ,  G03G21/0011 ,  G03G21/0035 ,  G03G21/0076 ,  G03G21/12

Abstract: The present invention relates to printing equipment for printing images such as letters, pictures and the like on the surface of metal such as a steel plate, that may stably print images on the surface of metal at high speed, a printing method using the same, and a printed metal material obtained therefrom.

公开(公告)号：US20230347623A1

公开(公告)日：2023-11-02

申请号：US18025757

申请日：2021-09-13

Applicant: POSCO Co., Ltd

Inventor： Jin-Tae Kim ,  Yang-Ho Choi ,  Ha-Na Choi ,  Dae-Gyu Kang

IPC: B32B15/04 ,  B32B5/20 ,  B32B15/085 ,  B32B15/18 ,  B32B15/20 ,  B32B37/10

CPC classification number: B32B15/046 ,  B32B5/20 ,  B32B15/085 ,  B32B15/18 ,  B32B15/20 ,  B32B37/10 ,  B32B2307/102 ,  B32B2305/022 ,  B32B2307/7376

Abstract: Provided are a constrained-type vibration-damping metal sheet having foam pores and a method for manufacturing same. The constrained-type vibration-damping metal sheet of the present invention comprises: a lower metal sheet; a foam resin film bonded to the lower metal sheet; and an upper metal sheet bonded to the foam resin film, wherein the foam resin film has foam pores comprising, by wt % of itself, 85-95% of a thermoplastic polyethylene resin having a number average molecular weight of 8000-12000, 0.1-1% of stearic acid, 1-5% of a styrene-ethylene-butadiene-styrene (SEBS) resin, 0.5-5% of a foaming agent, 1-4% of a dicumyl peroxide crosslinking agent, and 0.5-2% of ZnO foaming aid.

公开(公告)号：US20240092060A1

公开(公告)日：2024-03-21

申请号：US18265566

申请日：2021-11-30

Applicant: POSCO Co., Ltd

Inventor： Jin-Tae Kim ,  Dae-Gyu Kang ,  Yang-Ho Choi ,  Jung-Hwan Lee

IPC: B32B15/04 ,  B32B5/20 ,  B32B15/18 ,  C08J9/00 ,  C08J9/10 ,  C08K3/36 ,  C08K5/11 ,  C08K5/14 ,  C08K7/18 ,  C09D5/00 ,  C09D7/40 ,  C09D7/61 ,  C09D7/63 ,  C09D127/06 ,  C09D133/08

CPC classification number: B32B15/046 ,  B32B5/20 ,  B32B15/18 ,  C08J9/0023 ,  C08J9/103 ,  C08K3/36 ,  C08K5/11 ,  C08K5/14 ,  C08K7/18 ,  C09D5/002 ,  C09D7/61 ,  C09D7/63 ,  C09D7/69 ,  C09D7/70 ,  C09D127/06 ,  C09D133/08 ,  B32B2250/02 ,  B32B2255/06 ,  B32B2255/26 ,  B32B2266/0235 ,  B32B2266/104 ,  B32B2307/102 ,  B32B2307/56 ,  B32B2307/7376 ,  C08J2327/06

Abstract: Provided is an unconstrained vibration damping metal sheet with foam pores. The unconstrained vibration damping metal sheet of the present invention comprises: a metal sheet; an organic-inorganic pretreatment layer containing an acrylic resin formed on the metal sheet; and a foam resin layer formed on the pretreatment layer, the foam resin layer containing, based on weight % thereof, a thermoplastic polyvinyl chloride resin: 40-80%, a plasticizer: 5-40%, a foaming agent: 0.1-10%, an oxide-based crosslinker: 1-4%, and spherical silica: 1-10%.