	US 12,276,030 B2
	Metal pretreatment compositions containing phenalkamine compounds
Donald R. Vonk, Clinton Township, MI (US)
Assigned to Henkel AG & Co. KGaA, Duesseldorf (DE)
Filed by Henkel AG & Co. KGaA, Duesseldorf (DE)
Filed on Jun. 11, 2021, as Appl. No. 17/345,278.
Application 17/345,278 is a continuation of application No. PCT/US2019/065127, filed on Dec. 9, 2019.
Claims priority of provisional application 62/780,471, filed on Dec. 17, 2018.
Prior Publication US 2021/0317583 A1, Oct. 14, 2021
Int. Cl. C23C 22/48 (2006.01); C01G 25/00 (2006.01); C01G 25/02 (2006.01); C23C 22/06 (2006.01); C23C 22/34 (2006.01)

CPC C23C 22/48 (2013.01) [C01G 25/006 (2013.01); C01G 25/02 (2013.01)]

49 Claims

1. An acidic aqueous conversion coating composition comprising:

a) at least one Group IV metal; and

b) at least one phenalkamine component wherein the at least one phenalkamine component comprises a mixture of at least two phenalkamine compounds, different from each other, each corresponding to Formula (I):

R—Ar(—OH)—CHR′NHCH₂CH₂(NHCH₂CH₂)_nNH₂ (I)

wherein Ar is a benzene ring, and for each of the different phenalkamine compounds R is a C6-C30 saturated or unsaturated alkyl group, R′ is H or an alkyl group, and n is 0 or an integer of at least 1.