	US 12,221,570 B2
	Process for producing a pressure-sensitive adhesive based on acrylonitrile-butadiene rubber and adhesive tape comprising said adhesive
Julia Schönrock, Hamburg (DE); CaiRong Lim, Hamburg (DE); and Yeliz Tepe, Hamburg (DE)
Assigned to Tesa SE, Norderstedt (DE)
Appl. No. 17/416,751
Filed by TESA SE, Norderstedt (DE)
PCT Filed Dec. 17, 2019, PCT No. PCT/EP2019/085757 § 371(c)(1), (2) Date Jun. 21, 2021, PCT Pub. No. WO2020/127351, PCT Pub. Date Jun. 25, 2020.
Claims priority of application No. 10 2018 222 373.4 (DE), filed on Dec. 19, 2018; and application No. 10 2018 222 679.2 (DE), filed on Dec. 20, 2018.
Prior Publication US 2022/0073791 A1, Mar. 10, 2022
Int. Cl. C09J 7/38 (2018.01); C09J 7/25 (2018.01)

CPC C09J 7/383 (2018.01) [C09J 7/255 (2018.01); C09J 2203/326 (2013.01); C09J 2301/122 (2020.08); C09J 2301/124 (2020.08); C09J 2301/302 (2020.08); C09J 2409/00 (2013.01); C09J 2467/006 (2013.01)]

16 Claims

1. A method of producing a cured pressure-sensitive adhesive from a composition comprising:

a) at least one solid acrylonitrile-butadiene rubber,

b) at least one tackifier resin, and

c) optionally at least one liquid acrylonitrile-butadiene rubber,

said method comprising subjecting the composition to electron beam irradiation (EBI) with an acceleration voltage per 1 μm of layer thickness of the composition of 1.8 to 2.38 kV and a total radiation dose of 5 to 50 kGy to obtain the cured pressure-sensitive adhesive.