	US 12,466,981 B2
	Curable two-part adhesive composition
Patxi Garra, Barcelona (ES); Marta Rodriguez Ble, Barcelona (ES); Jordi Solera Sendra, Barcelona (ES); and Marc Escriba Pla, Barcelona (ES)
Assigned to BOSTIK SA, Colombes (FR)
Appl. No. 18/005,377
Filed by BOSTIK SA, Colombes (FR)
PCT Filed Jul. 20, 2021, PCT No. PCT/EP2021/070278 § 371(c)(1), (2) Date Jan. 13, 2023, PCT Pub. No. WO2022/018087, PCT Pub. Date Jan. 27, 2022.
Claims priority of application No. 20305840 (EP), filed on Jul. 22, 2020.
Prior Publication US 2023/0265320 A1, Aug. 24, 2023
Int. Cl. C09J 133/08 (2006.01)

CPC C09J 133/08 (2013.01)

15 Claims

1. A two-part curable composition, characterized in that it comprises:

a) a first part (part A) comprising:

i. at least 50 wt. % of one or more cyanoacrylate monomer(s),

ii. at least 1 wt. % of one or more (meth)acrylic monomer(s), and

iii. at least 1 wt. % of a per-compound,

wherein the wt. % is based on the total weight of the first part of the composition,

b) a second part (part B) comprising:

i. at least 50 wt. % of a non-reactive diluent, and

ii. from 0.001 wt. % to 2 wt. % of a transition metal catalyst, expressed as the content of the transition metal,

wherein the wt. % is based on the total weight of the second part of the composition, wherein the volume ratio between the first part and the second part ranges from 4:1 to 10:1, with the proviso that the second part does not comprise any vinylic monomer(s).