公开(公告)号：US20240026545A1

公开(公告)日：2024-01-25

申请号：US18478059

申请日：2023-09-29

Applicant: HOWMET AEROSPACE INC.

Inventor： Ryan N. Scott ,  Kevin M. Robare ,  Jennifer L. Giocondi ,  Nicola Menegazzo ,  Kelly M. Weiler

IPC: C23C22/07 ,  B05D7/14 ,  C23C22/73 ,  C23C22/76 ,  C23G1/12 ,  C23G1/22

CPC classification number: C23C22/07 ,  B05D7/14 ,  C23C22/73 ,  C23C22/76 ,  C23G1/125 ,  C23G1/22

Abstract: Metallic substrate treatment methods and articles comprising a phosphonate functionalized layer are provided. The method comprises contacting a metallic substrate comprising at least one of aluminum and an aluminum alloy with a fluid to form a phosphonate functionalized layer on at least a region of the metallic substrate. The fluid comprises at least one of a phosphonate containing acid and a derivative thereof. At least one of the phosphonate containing acid and the derivative thereof comprises a pKa of a first acidic proton. The fluid comprises a pH at least 0.5 pH value greater than the pKa of the first acidic proton. The article comprises a metallic substrate comprising aluminum or an aluminum alloy and a phosphonate functionalized layer on at least a region of the metallic substrate.

公开(公告)号：US12018380B2

公开(公告)日：2024-06-25

申请号：US17433312

申请日：2019-12-18

Applicant: HOWMET AEROSPACE INC.

Inventor： Ryan N. Scott ,  Kevin M. Robare ,  Jennifer L. Giocondi ,  Nicola Menegazzo ,  Kelly M. Weiler

IPC: C23C22/07 ,  B05D7/14 ,  C23C22/73 ,  C23C22/76 ,  C23G1/12 ,  C23G1/22

CPC classification number: C23C22/07 ,  B05D7/14 ,  C23C22/73 ,  C23C22/76 ,  C23G1/125 ,  C23G1/22

Abstract: Metallic substrate treatment methods and articles comprising a phosphonate functionalized layer are provided. The method comprises contacting a metallic substrate comprising at least one of aluminum and an aluminum alloy with a fluid to form a phosphonate functionalized layer on at least a region of the metallic substrate. The fluid comprises at least one of a phosphonate containing acid and a derivative thereof. At least one of the phosphonate containing acid and the derivative thereof comprises a pKa of a first acidic proton. The fluid comprises a pH at least 0.5 pH value greater than the pKa of the first acidic proton. The article comprises a metallic substrate comprising aluminum or an aluminum alloy and a phosphonate functionalized layer on at least a region of the metallic substrate.

公开(公告)号：US20220145471A1

公开(公告)日：2022-05-12

申请号：US17433312

申请日：2019-12-18

Applicant: HOWMET AEROSPACE INC.

Inventor： Ryan N. Scott ,  Kevin M. Robare ,  Jennifer L. Giocondi ,  Nicola Menegazzo ,  Kelly M. Weiler

IPC: C23C22/07 ,  C23G1/12 ,  C23G1/22 ,  C23C22/76 ,  C23C22/73 ,  B05D7/14

Abstract: Metallic substrate treatment methods and articles comprising a phosphonate functionalized layer are provided. The method comprises contacting a metallic substrate comprising at least one of aluminum and an aluminum alloy with a fluid to form a phosphonate functionalized layer on at least a region of the metallic substrate. The fluid comprises at least one of a phosphonate containing acid and a derivative thereof. At least one of the phosphonate containing acid and the derivative thereof comprises a pKa of a first acidic proton. The fluid comprises a pH at least 0.5 pH value greater than the pKa of the first acidic proton. The article comprises a metallic substrate comprising aluminum or an aluminum alloy and a phosphonate functionalized layer on at least a region of the metallic substrate.