US 12,359,092 B2
Non-substrate adhesive tape with different adhesive properties on both sides and manufacturing method thereof
Ho Seup Moon, Incheon (KR)
Assigned to Truss Co., Ltd, Incheon (KR); and Ho Seup Moon, Incheon (KR)
Filed by Truss Co., Ltd, Incheon (KR); and MOON HO SEUP, Incheon (KR)
Filed on Feb. 17, 2022, as Appl. No. 17/674,460.
Claims priority of application No. 10-2021-0022236 (KR), filed on Feb. 19, 2021.
Prior Publication US 2022/0267647 A1, Aug. 25, 2022
Int. Cl. C09J 7/10 (2018.01); C09J 7/38 (2018.01); B32B 37/12 (2006.01)
CPC C09J 7/10 (2018.01) [C09J 7/385 (2018.01); B32B 37/12 (2013.01); B32B 2037/1253 (2013.01); C09J 2301/1242 (2020.08); C09J 2433/00 (2013.01); C09J 2483/00 (2013.01); C09J 2483/003 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A non-substrate adhesive tape with different adhesive properties on both sides, the non-substrate adhesive tape comprising:
a first adhesive layer;
a second adhesive layer; and
a primer coating layer interposed between the first adhesive layer and the second adhesive layer,
wherein the first adhesive layer is a silicone adhesive layer,
an adhesive strength of the silicone adhesive layer relative to an adherend is 700 gf/in to 2,000 gf/in, wherein the adherend is not the second adhesive layer, and
a thickness of the primer coating layer is 0.1 μm to 50 μm.