公开(公告)号：WO2022002786A1

公开(公告)日：2022-01-06

申请号：PCT/EP2021/067486

申请日：2021-06-25

Applicant: COVESTRO DEUTSCHLAND AG

Inventor： ZHANG, Chenxi ,  ZHU, Feng ,  LI, Jinqi ,  LU, Weixi ,  FU, Yu Wang

IPC: C08G18/62 ,  C09D5/00 ,  C09D175/04 ,  C04B14/04 ,  C08K3/36 ,  C08K9/04 ,  C08K9/06 ,  C09D175/14 ,  C09D175/16 ,  C04B20/1051 ,  C04B2103/0062 ,  C04B2111/00482 ,  C04B26/06 ,  C04B26/16 ,  C08G18/706 ,  C08G18/797 ,  C09D5/32

Abstract: The present invention relates to a water-based coating composition, the preparation and use of the composition, a two-component coating system comprising the composition and use thereof, and an article obtained by coating with the composition or the two-component coating system. The water-based coating composition comprises a water-based UV resin; a silane-treated nanosized silicon oxide compound; and a photoinitiator; wherein per kilogram of the solid constituent of the water-based UV resin contains not less than 3 mol of ethylenically unsaturated groups, and wherein the weight ratio of the solid constituent of the nanosized silicon oxide compound to the solid constituent of the water-based UV resin is 11:20 to 73:100. The coating layer formed by the water-based coating composition of the present invention has high hardness and good adhesion, and is particularly suitable for electronic, electrical and communication equipment in the 5G field.

公开(公告)号：WO2022207532A1

公开(公告)日：2022-10-06

申请号：PCT/EP2022/058061

申请日：2022-03-28

Applicant: COVESTRO DEUTSCHLAND AG

Inventor： LIU, Xingchen ,  DENG, Yan ,  YU, Qing ,  LIU, Jingmei ,  TANG, Min ,  LU, Weixi ,  CHEN, Ruqi ,  HECKING, Andreas ,  REXMANN, Bianca

IPC: C08G18/18 ,  C08G18/79 ,  C08G18/09 ,  C08G18/72 ,  C08J5/24 ,  H05K1/03 ,  C08G18/02 ,  C08G18/78 ,  B32B15/14 ,  B32B15/20 ,  B32B17/02 ,  B32B2250/05 ,  B32B2260/023 ,  B32B2260/046 ,  B32B2262/101 ,  B32B2457/08 ,  B32B5/26 ,  C08G18/022 ,  C08G18/092 ,  C08G18/1825 ,  C08G18/721 ,  C08G18/7887 ,  C08G18/792 ,  C08G18/794 ,  C08J2375/00 ,  C08J2475/00 ,  C08J5/244 ,  H05K1/0346 ,  H05K1/0366

Abstract: 2020PF30238-Foreign Countries 30 Polyisocyanurate-prepregs and fiber composite components produced therefrom A b s t r a c t The present invention relates to polyisocyanate compositions comprising two different types of polyisocyanate, their use in the manufacture of prepregs and polyisocyanurate composited made from said prepregs.