US 12,338,346 B2
Radiation curable composition with improved mechanical properties
Andrea Gutacker, Langenfeld (DE); Ralf Dunekake, Duesseldorf (DE); Markus Bonigut, Hilden (DE); Sebastien Lanau, Duesseldorf (DE); Klaus Helpenstein, Moechengladbach (DE); and Ligang Zhao, Duesseldorf (DE)
Assigned to Henkel AG & Co. KGaA, Duesseldorf (DE)
Filed by Henkel AG & Co. KGaA, Duesseldorf (DE)
Filed on Nov. 11, 2021, as Appl. No. 17/454,526.
Application 17/454,526 is a continuation of application No. PCT/EP2020/062862, filed on May 8, 2020.
Claims priority of application No. 19174106 (EP), filed on May 13, 2019; and application No. 19174114 (EP), filed on May 13, 2019.
Prior Publication US 2022/0064442 A1, Mar. 3, 2022
Int. Cl. C08F 2/46 (2006.01); C08F 2/50 (2006.01); C08F 220/18 (2006.01); C08F 220/20 (2006.01); C08G 18/10 (2006.01); C08G 18/24 (2006.01); C08G 18/48 (2006.01); C08G 18/75 (2006.01); C08G 61/04 (2006.01); C08K 3/36 (2006.01); C08K 5/544 (2006.01); C08L 75/02 (2006.01); C08L 75/08 (2006.01); C08L 75/16 (2006.01)
CPC C08L 75/16 (2013.01) [C08F 220/1811 (2020.02); C08F 220/20 (2013.01); C08G 18/10 (2013.01); C08G 18/242 (2013.01); C08G 18/4845 (2013.01); C08G 18/755 (2013.01); C08K 3/36 (2013.01); C08K 5/544 (2013.01); C08L 75/02 (2013.01); C08L 75/08 (2013.01); C08G 2150/00 (2013.01); C08G 2170/00 (2013.01); C08G 2190/00 (2013.01); C08L 2312/06 (2013.01); C08L 2312/08 (2013.01)] 28 Claims
 
1. A curable composition, comprising
a) at least one first polymer A comprising at least one terminal group of the general formula (1)
-A1-C(═O)—CR1=CH2  (1),
wherein
A1 is a divalent bonding group containing at least one heteroatom; and
R1 is selected from hydrogen and C1 to C4 alkyl; and,
optionally, at least one terminal group of the general formula (II)
-A2-SiXYZ  (II),
wherein
A2 is a divalent bonding group containing at least one heteroatom; and
X, Y, Z are each, independently of one another, selected from the group consisting of a hydroxyl group, C1 to C8 alkyl group, C1 to C8 alkoxy group, and C1 to C8 acyloxy group, wherein X, Y, Z are substituents directly bound with the Si atom or the two of the substituents X, Y, Z form a ring together with the Si atom to which they are bound, and at least one of the substituents X, Y, Z is selected from the group consisting of a hydroxyl group, C1 to C8 alkoxy group and C1 to C8 acyloxy group,
b) at least one second polymer B comprising at least one terminal group of the general formula (II)
-A2-SiXYZ  (II),
wherein
A2 is a divalent bonding group containing at least one heteroatom; and
X, Y, Z are each, independently of one another, selected from the group consisting of a hydroxyl group, C1 to C8 alkyl group, C1 to C8 alkoxy group, and C1 to C8 acyloxy group, wherein X, Y, Z are substituents directly bound with the Si atom or the two of the substituents X, Y, Z form a ring together with the Si atom to which they are bound, and at least one of the substituents X, Y, Z is selected from the group consisting of a hydroxyl group, C1 to C8 alkoxy and C1 to C8 acyloxy group,
c) at least one reactive diluent,
d) at least one photoinitiator,
e) at least one filler,
f) optionally, at least one adhesion promoter, and
g) optionally, at least one curing catalyst.