	US 12,077,695 B2
	Detachable adhesive strip
Michael Mayer, Hamburg (DE); Jan Ole Pöhls, Hamburg (DE); and Thomas Schubert, Norderstedt (DE)
Assigned to tesa SE, Norderstedt (DE)
Appl. No. 17/598,676
Filed by TESA SE, Norderstedt (DE)
PCT Filed Mar. 23, 2020, PCT No. PCT/EP2020/057941 § 371(c)(1), (2) Date Sep. 27, 2021, PCT Pub. No. WO2020/193461, PCT Pub. Date Oct. 1, 2020.
Claims priority of application No. 10 2019 204 344.5 (DE), filed on Mar. 28, 2019.
Prior Publication US 2022/0195260 A1, Jun. 23, 2022
Int. Cl. C09J 7/38 (2018.01); C09J 11/04 (2006.01); C09J 153/02 (2006.01)

CPC C09J 7/387 (2018.01) [C09J 11/04 (2013.01); C09J 153/02 (2013.01); C09J 2203/326 (2013.01); C09J 2203/37 (2020.08); C09J 2301/302 (2020.08); C09J 2453/00 (2013.01)]

23 Claims

1. A pressure-sensitive adhesive strip (PSA strip) which is redetachable, without residue or destruction, by extensive stretching substantially in a bond plane formed between the PSA strip and a substrate to which the PSA strip is bonded, the PSA strip comprising one or more layers of pressure-sensitive adhesive (PSA layers) and optionally one or more intermediate carrier layers,

where at least one of the PSA layers comprises at least one filler which can be separated into its primary particles, the primary particles

(i) being spherical, and

(ii) having a median diameter d(0.5) of less than 10 μm,

and where a ratio of the median diameter d(0.5) of the primary particles to a thickness of a PSA layer containing the primary particles is less than 1:2.