	US 12,187,921 B2
	Powder adhesive and bonded article
Yuhei Terui, Shizuoka (JP); Shohei Yamashita, Tokyo (JP); Tsutomu Shimano, Shizuoka (JP); Koji Nishikawa, Shizuoka (JP); Kohei Matsuda, Kanagawa (JP); and Yuki Nishizawa, Kanagawa (JP)
Assigned to Canon Kabushiki Kaisha, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Jul. 26, 2021, as Appl. No. 17/385,118.
Claims priority of application No. 2020-130488 (JP), filed on Jul. 31, 2020.
Prior Publication US 2022/0041906 A1, Feb. 10, 2022
Int. Cl. C09J 11/08 (2006.01); B32B 7/12 (2006.01); B32B 29/00 (2006.01); C08F 212/08 (2006.01); C08F 220/18 (2006.01); C08K 5/23 (2006.01); C08K 5/3417 (2006.01); C08K 5/3437 (2006.01); C08K 5/3447 (2006.01); C09J 5/06 (2006.01); C09J 11/06 (2006.01); C09J 125/06 (2006.01); C09J 133/10 (2006.01); D21H 19/42 (2006.01); D21H 19/60 (2006.01)

CPC C09J 11/08 (2013.01) [B32B 7/12 (2013.01); B32B 29/005 (2013.01); C08F 212/08 (2013.01); C08F 220/1806 (2020.02); C08K 5/235 (2013.01); C08K 5/3417 (2013.01); C08K 5/3437 (2013.01); C08K 5/3447 (2013.01); C09J 5/06 (2013.01); C09J 11/06 (2013.01); C09J 125/06 (2013.01); C09J 133/10 (2013.01); D21H 19/42 (2013.01); D21H 19/60 (2013.01); C08F 2800/20 (2013.01); C09J 2400/286 (2013.01); C09J 2425/00 (2013.01); C09J 2433/00 (2013.01); C09J 2491/00 (2013.01)]

14 Claims

1. A powder adhesive comprising:

a thermoplastic resin; and

a particle comprising an aromatic compound,

wherein the aromatic compound is a compound comprising an aromatic ring and an azo bond bonded to the aromatic ring, or a compound comprising a heteroaromatic ring comprising a nitrogen atom,

wherein the thermoplastic resin comprises an ester group, and

wherein, designating Es (mmol/g) as an ester group concentration in the thermoplastic resin, M (mass %) as a content of the aromatic compound particles in the powder adhesive, and N (mmol/g) as a nitrogen atom concentration in the aromatic compound particles,

Es is 1.0 to 4.5 mmol/g,

Mis 1.0×10⁻⁴to 5.0×10⁻²mass %, and

N is 5.0 to 15.0 mmol/g.