US 11,987,658 B2
Curable resin composition and method of manufacturing article
Kazuho Saeki, Kanagawa (JP); Takayuki Hiratani, Tokyo (JP); Ryo Ogawa, Kanagawa (JP); and Kyohei Wada, Tokyo (JP)
Assigned to CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Feb. 28, 2022, as Appl. No. 17/683,033.
Claims priority of application No. 2021-035297 (JP), filed on Mar. 5, 2021; and application No. 2021-206090 (JP), filed on Dec. 20, 2021.
Prior Publication US 2022/0282013 A1, Sep. 8, 2022
Int. Cl. C08F 220/40 (2006.01); C08F 2/50 (2006.01); C08F 222/10 (2006.01); C08L 51/04 (2006.01)
CPC C08F 220/40 (2013.01) [C08F 2/50 (2013.01); C08F 222/102 (2020.02); C08L 51/04 (2013.01); C08L 2205/18 (2013.01); C08L 2207/53 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A curable resin composition comprising:
(A) an α-(unsaturated alkoxyalkyl)acrylic acid or an ester thereof;
(B) a bifunctional radically polymerizable oligomer;
optionally (C) a radically polymerizable compound other than the component (A) and the component (B);
(D) rubber particles; and
(E) a radical polymerization initiator,
wherein the component (A) is an α-(unsaturated alkoxyalkyl)acrylic acid or an ester thereof represented by formula (1):

OG Complex Work Unit Chemistry
where:
R1 represents a hydrogen atom or an organic group having 1 or more and 30 or less carbon atoms;
R2 represents an alkylene group having 1 or more and 4 or less carbon atoms;
any one of R3 and R4 represents an alkylene group having 1 or more and 4 or less carbon atoms, and another thereof represents an oxygen atom; and
R5 represents any one of a hydrogen atom, an alkyl group having 1 or more and 4 or less carbon atoms, and an ester group,
wherein the component (B) is a bifunctional radically polymerizable oligomer formed of: an oligomer moiety in which two or more monomer units are linked together via any one of a carbonate group, an ester group, and an ether group; and two polymerizable functional groups,
wherein a total content of the component (A) and the component (C) is more than 70 parts by mass and less than 90 parts by mass with respect to 100 parts by mass in total of the component (A), the component (B), and the component (C);
wherein a content of the component (D) is 5 parts by mass or more and 60 parts by mass or less with respect to 100 parts by mass in total of the component (A), the component (B), and the component (C), and
wherein, when the curable resin composition comprises the component (C), the component (C) contains a monofunctional radically polymerizable compound at a content of more than 75 parts by mass with respect to 100 parts by mass in total of the component (C).