公开(公告)号：EP3395920A1

公开(公告)日：2018-10-31

申请号：EP16879338.8

申请日：2016-12-21

Applicant: Posco

Inventor： KIM, Jung Woo ,  CHOI, Heon Jo ,  BONG, Won-Seog ,  NO, Tae Young ,  PARK, Jong-Tae

IPC: C09J1/02 ,  C09J11/04 ,  C09D1/04 ,  C09D1/02 ,  C23C26/02 ,  B05D7/00 ,  C22C38/02 ,  C21D1/30 ,  C08K3/20 ,  C09D7/40

CPC classification number: B05D7/00 ,  C08K3/20 ,  C09D1/02 ,  C09D1/04 ,  C09D7/40 ,  C09J1/02 ,  C21D1/30 ,  C22C38/02 ,  C23C26/02

Abstract: The present invention relates to an electrical steel sheet adhesive coating composition, an electrical steel sheet with an adhesive coating layer, an electrical steel sheet product, and a method for manufacturing product, wherein the electrical steel sheet adhesive coating composition includes a first component including water glass and an additive, and a solvent, the water glass includes a material represented by Chemical Formula 1 below, the additive is one among an oxide and a hydroxide or a mixture of two or more thereof, 80 to 99.9 wt% of the water glass and 0.1 to 20 wt% of the additive are included based on the total amount, 100 wt%, of the first component, 5 to 200 parts by weight of the solvent is included based on the total amount, 100 parts by weight, of the first component, and a specific gravity of the electrical steel sheet adhesive coating composition is 1.01 to 1.5 g/l.

        [Chemical Formula 1]     MxO·n 1 SiO 2 ·m 1 H 2 O

公开(公告)号：EP3395923A1

公开(公告)日：2018-10-31

申请号：EP16879112.7

申请日：2016-07-27

Applicant: Posco

Inventor： KIM, Jung Woo ,  KIM, Ji Hyun ,  KIM, Jae Song ,  KIM, Jae Hoon

IPC: C09J201/00 ,  C09J11/08 ,  C09J11/04 ,  B32B7/12 ,  B32B15/04 ,  B05D7/00 ,  C21D1/30 ,  C22C38/02 ,  C23C26/02 ,  C09D7/40 ,  C09D201/02

CPC classification number: B32B7/12 ,  B05D7/00 ,  B32B15/04 ,  C08K3/22 ,  C08K3/32 ,  C08K9/08 ,  C08K2003/325 ,  C08K2003/326 ,  C08K2003/327 ,  C08K2003/328 ,  C08K2201/005 ,  C09D7/67 ,  C09D201/02 ,  C09J11/04 ,  C09J201/00 ,  C21D1/30 ,  C21D8/1277 ,  C22C38/02

Abstract: The present invention relates to a non-oriented electrical steel sheet adhesive coating composition including the constituent elements below, a non-oriented electrical steel sheet product, and a manufacturing method thereof. The non-oriented electrical steel sheet adhesive coating composition includes: a first component including an organic/inorganic composite; and a second component including a composite metal phosphate, wherein the organic/inorganic composite is formed by having inorganic nanoparticles chemically substituted with some functional groups in an organic resin, the organic resin is one, or two or more, selected from an epoxy-based resin, an ester-based resin, an acrylic resin, a styrene-based resin, a urethane-based resin, and an ethylene-based resin, and the inorganic nanoparticles are one, or two or more, selected from SiO 2 , Al 2 O 3 , TiO 2 , MgO, ZnO, and ZrO 2 .