公开(公告)号：US20240181494A1

公开(公告)日：2024-06-06

申请号：US18556479

申请日：2022-05-04

申请人： CHEMETALL GMBH

发明人： Ming Juan SONG ,  Hai Xia ZOU ,  Jin Kai HUANG ,  Peng XIA

IPC分类号： B05D7/14

CPC分类号： B05D7/14 ,  B05D2202/15 ,  B05D2502/00

摘要： Disclosed herein is an aqueous composition including components (A) from 10% to 35% by weight of acrylic resin without hydroxyl group, where the acrylic resin has an average particle diameter in a range of from 50 μm to 200 μm measured by dynamic light scattering according to ISO13321:2004, (B) from 0.1% to 4% by weight of a film-forming aid having a boiling point of no more than 300° C. under 1 atm, (C) from 1% to 8% by weight of a lubricant having an average particle diameter in a range of from 100 nm to 600 nm measured by dynamic light scattering according to ISO13321:2004, and (D) from 0.1% to 1% by weight of a water-soluble chromium compound, where its weight is calculated from the chromium element, and the weight percentages of all components are based on the total weight of the aqueous composition.

公开(公告)号：US20240229243A1

公开(公告)日：2024-07-11

申请号：US18560007

申请日：2022-05-24

申请人： CHEMETALL GMBH

发明人： Jia Yun YANG ,  Ling Ling ZHU ,  Hai Xia ZOU ,  Sheng Xing WAN

IPC分类号： C23C22/05 ,  C09D5/08 ,  C09D133/08 ,  C09D175/04

CPC分类号： C23C22/05 ,  C09D5/08 ,  C09D133/08 ,  C09D175/04 ,  C23C2222/20

摘要： Disclosed herein is an aqueous non-Cr passivating composition including, on the basis of the weight of the non-Cr passivating composition: (a) 5 to 20% by weight of a silicon-containing compound; and (b) 5 to 15% by weight of a water-borne polymer, which is selected from the group consisting of a polyurethane resin, an epoxy resin, a polyacrylate resin and the combination thereof. Further disclosed herein are a metal with a surface passivated by the aqueous non-Cr passivating composition and an article having a metallic surface passivated by the aqueous non-Cr passivating composition, and a process for passivating a metallic surface with the aqueous non-Cr passivating composition.