US 11,891,552 B2
Weather proof pressure sensitive adhesive tape composition and a process for production thereof
Ashok Shukla, Noida (IN)
Appl. No. 17/284,444
Filed by Ashok Shukla, Noida (IN)
PCT Filed Jun. 12, 2019, PCT No. PCT/IN2019/050450
§ 371(c)(1), (2) Date Apr. 10, 2021,
PCT Pub. No. WO2020/075179, PCT Pub. Date Apr. 16, 2020.
Claims priority of application No. 201811038582 (IN), filed on Oct. 11, 2018.
Prior Publication US 2021/0340410 A1, Nov. 4, 2021
Int. Cl. C09J 7/38 (2018.01); C09J 7/29 (2018.01)
CPC C09J 7/385 (2018.01) [C09J 7/29 (2018.01); C09J 2433/00 (2013.01); C09J 2483/006 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A waterproof and weatherproof pressure sensitive adhesive tape comprising:
a. a substrate layer;
b. a co-binding layer comprising a polyorganosiloxane on one or both sides of the substrate layer to be coated with a pressure sensitive adhesive layer; and
c. the pressure sensitive adhesive layer contiguous with the co-binding layer comprising a crosslinker and an acrylate, terminated with a reactable group comprising a hydroxyl group that is obtained by reacting the acrylate with a superheated partially ionized steam in the presence of a catalyst after the coating of the substrate layer, wherein the hydroxyl group of the acrylate impregnates the pressure sensitive adhesive layer to solidify a pressure sensitive adhesive composition of the pressure sensitive adhesive layer.