US2016208115A1PendingUtilityA1

Friction modifier for top coating agent for trivalent chromium chemical conversion coating film or chromium-free chemical conversion coating film, and top coating agent including same

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Assignee: DIPSOL CHEMPriority: Aug 28, 2013Filed: Aug 19, 2014Published: Jul 21, 2016
Est. expiryAug 28, 2033(~7.1 yrs left)· nominal 20-yr term from priority
Inventors:Yasuhiro KatoToshiki InomataManabu Inoue
C23C 2222/10C09D 5/08C09D 183/06C23C 22/83C09D 7/125C09D 183/12C09D 171/02C09D 7/61C09D 7/63C08G 77/46C09D 7/65
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Claims

Abstract

Provided is a friction modifier for a top coating agent for a hexavalent chromium-free trivalent chromium chemical conversion coating film or chromium-free chemical conversion coating film, said friction modifier including a polyoxyalkylene fatty acid ester.

Claims

exact text as granted — not AI-modified
1 . A friction modifier for a top coating agent for a trivalent chromium chemical conversion film or a chromium-free chemical conversion film, the friction modifier comprising a polyoxyalkylene fatty acid ester. 
     
     
         2 . A top coating agent for a hexavalent chromium-free trivalent chromium chemical conversion film or a chromium-free chemical conversion film, the top coating agent comprising:
 a polyoxyalkylene fatty acid ester;   a modified organopolysiloxane;   a water-soluble glycol ether; and   water.   
     
     
         3 . The top coating agent according to  claim 2 , wherein
 the content of the polyoxyalkylene fatty acid ester is 1 to 100 g/L,   the content of the modified organopolysiloxane is 50 to 450 g/L, and   the content of the water-soluble glycol ether is 50 to 400 g/L.   
     
     
         4 . The top coating agent according to  claim 2 , further comprising a colloidal metal oxide. 
     
     
         5 . The top coating agent according to  claim 4 , wherein
 the colloidal metal oxide is at least one selected from the group consisting of silicon oxide, titanium oxide, aluminum oxide, zirconium oxide, zinc oxide, and dichromium trioxide (Cr 2 O 3 ).   
     
     
         6 . The top coating agent according to  claim 2 , further comprising a black pigment. 
     
     
         7 . The top coating agent according to  claim 6 , wherein the black pigment is at least one selected from carbon black and black dyes. 
     
     
         8 . The top coating agent according to  claim 2 , further comprising an ultraviolet absorber.

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