US2018002814A1PendingUtilityA1

Reinforced chemical conversion coating

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Assignee: UNITED TECHNOLOGIES CORPPriority: Jun 30, 2016Filed: Jun 30, 2016Published: Jan 4, 2018
Est. expiryJun 30, 2036(~9.9 yrs left)· nominal 20-yr term from priority
Inventors:Mark R. JaworowskiBlair A. SmithWeilong ZhangMichael A. KryzmanGeorgios S. ZafirisBart Antonie Van Hassel
C09D 5/08C23C 22/78C23C 22/73C23C 2222/10C09D 5/084C23C 22/05
44
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Claims

Abstract

A process of preventing crack formation in chemical conversion coating comprising providing a substrate; introducing a chemical conversion coating material; adding an additive containing a binder to the conversion coating material; and coating the substrate with the chemical conversion coating and the additive.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . A process of preventing crack and pin-hole formation in chemical conversion coating films comprising:
 providing a substrate;   introducing a chemical conversion coating material;   adding a binder to said conversion coating material; and   coating said substrate with said chemical conversion coating and said additive.   
     
     
         2 . The process according to  claim 1 , wherein said binder is selected from the group consisting of polyvinyl-alcohol, polyvinylpyrrolidone, polyvinyl-acetate, styrene-butadiene and hydro-propyl-cellulose. 
     
     
         3 . The process according to  claim 1 , further comprising
 strengthening said chemical conversion coating during formation by reducing differential stresses caused during drying and curing of said chemical conversion coating with said binder.   
     
     
         4 . The process according to  claim 1 , further comprising:
 binding transition metal ions in said chemical conversion coating.   
     
     
         5 . The process according to  claim 1 , further comprising:
 preventing cracks in said chemical conversion coating.   
     
     
         6 . The process according to  claim 1 , wherein said chemical conversion coating comprises trivalent chromium. 
     
     
         7 . The process according to  claim 1 , further comprising:
 a mixture of said binders.   
     
     
         8 . A component comprising:
 a substrate having a surface; and   a chemical conversion coating bonded to said surface, wherein said chemical conversion coating comprises a binder configured to prevent crack formation responsive to curing.   
     
     
         9 . The component according to  claim 8 , wherein said chemical conversion coating is a composite of trivalent chromium and binder. 
     
     
         10 . The component according to  claim 9 , wherein said binder is selected from the group consisting of polyvinyl-alcohol, polyvinylpyrrolidone, polyvinyl-acetate, styrene-butadiene and hydro-propyl-cellulose. 
     
     
         11 . The component according to  claim 9 , wherein said binder is configured to bind transition metal ions in said chemical conversion coating. 
     
     
         12 . The component according to  claim 8 , wherein said component comprises a metal material. 
     
     
         13 . The component according to  claim 8 , wherein a strength of said chemical conversion coating having said binder is greater than a tensile stress of said chemical conversion coating generated during curing. 
     
     
         14 . The component according to  claim 8  further comprising: a mixture of said binders. 
     
     
         15 . The component according to  claim 8 , wherein said chemical conversion coating comprises trivalent chromium.

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