US 11,697,748 B2
Dust-purifying adhesive layer, dust-purifying film, and dust-purifying film sleeve
Wei Wei, Shenzhen (CN)
Assigned to SHENZHEN LANHE TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed by SHENZHEN LANHE TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed on Apr. 21, 2022, as Appl. No. 17/725,821.
Claims priority of application No. 202111301151.7 (CN), filed on Nov. 4, 2021; and application No. 202122685457.9 (CN), filed on Nov. 4, 2021.
Prior Publication US 2023/0133830 A1, May 4, 2023
Int. Cl. C09J 7/29 (2018.01); G02B 1/18 (2015.01)
CPC C09J 7/29 (2018.01) [G02B 1/18 (2015.01); C09J 2203/326 (2013.01); C09J 2301/16 (2020.08); C09J 2483/006 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A dust-purifying adhesive layer comprising:
a substrate layer,
an optically clear adhesive (OCA) layer, and
a dust-purifying layer, the dust-purifying layer and the OCA layer respectively disposed on two sides of the substrate layer, wherein the dust-purifying layer is adapted for dust-purifying and air bubbles elimination and has fluidity, and
when the dust-purifying layer is arranged on a screen with foreign matters of an electronic device, the dust-purifying layer wraps the foreign matters on the screen and fills gaps formed between the foreign matters and the dust-purifying layer,
wherein a material of the dust-purifying layer comprises the following components mixed by weight ratio: 28%-35% methyl vinyl silicone rubber, 55%-65% ethyl formate, 8%-12% xylene and 1.5%-2.5% ethylbenzene.