US 9,808,829 B2
Methods for applying a coating over laser marking
Jared M. Kole, San Francisco, CA (US); Ashutosh Y. Shukla, Santa Clara, CA (US); Yi Zhang, Campbell, CA (US); Vincent Yan, San Francisco, CA (US); and Wai Man Raymund Kwok, Hong Kong (HK)
Assigned to Apple Inc., Cupertino, CA (US)
Filed by Apple Inc., Cupertino, CA (US)
Filed on Sep. 4, 2015, as Appl. No. 14/846,269.
Prior Publication US 2017/0066011 A1, Mar. 9, 2017
Int. Cl. C09D 5/44 (2006.01); B05D 5/00 (2006.01); B05D 1/02 (2006.01); B05B 7/24 (2006.01); B05B 3/00 (2006.01)
CPC B05D 5/005 (2013.01) [B05B 3/00 (2013.01); B05B 7/24 (2013.01); B05D 1/02 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An enclosure for an electronic device, the enclosure comprising:
a metal substrate;
an anodic film disposed upon the metal substrate, the anodic film having a channel that extends from an external surface of the anodic film to a transition region of the anodic film and the metal substrate; and
a polymerized hydrophobic material that coats the channel providing a moisture resistant barrier that prevents moisture ingress into the metal substrate, wherein the polymerized hydrophobic material includes a fluoropolymer.