US 11,891,544 B2
Pressure sensitive adhesive particles, method for producing printed material, and printed material
Yoshifumi Iida, Kanagawa (JP); Sachiko Nishioka, Kanagawa (JP); Takashi Hasegawa, Kanagawa (JP); Hajime Sugahara, Kanagawa (JP); Satomi Kashiwagi, Kanagawa (JP); Yuka Zenitani, Kanagawa (JP); and Satoshi Inoue, Kanagawa (JP)
Assigned to FUJIFILM Business Innovation Corp., Tokyo (JP)
Filed by FUJIFILM Business Innovation Corp., Tokyo (JP)
Filed on Aug. 26, 2020, as Appl. No. 17/003,947.
Claims priority of application No. 2020-040306 (JP), filed on Mar. 9, 2020.
Prior Publication US 2021/0277291 A1, Sep. 9, 2021
Int. Cl. C09J 125/06 (2006.01); C09J 133/10 (2006.01); C09J 133/02 (2006.01); B41M 7/00 (2006.01); C09J 7/38 (2018.01); C09J 125/14 (2006.01); C09J 133/08 (2006.01); C08K 3/36 (2006.01); C08K 3/22 (2006.01)
CPC C09J 125/06 (2013.01) [B41M 7/0027 (2013.01); C09J 7/385 (2018.01); C09J 125/14 (2013.01); C09J 133/02 (2013.01); C09J 133/08 (2013.01); C09J 133/10 (2013.01); C08K 3/22 (2013.01); C08K 3/36 (2013.01); C08K 2003/2237 (2013.01); C08K 2003/2241 (2013.01); C08L 2207/53 (2013.01); C09J 2301/21 (2020.08); C09J 2301/302 (2020.08); C09J 2301/312 (2020.08); C09J 2301/408 (2020.08); C09J 2425/00 (2013.01); C09J 2433/00 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A pressure sensitive adhesive particle comprising:
a pressure sensitive adhesive base particle that contains a styrene resin containing styrene and a vinyl monomer other than styrene as polymerization components, and a (meth)acrylate resin containing at least two (meth)acrylates as polymerization components, wherein a mass ratio of the (meth)acrylates relative to a total of polymerization components of the (meth)acrylate resin is 90 mass % or more; and
an external additive,
wherein the pressure sensitive adhesive particle has a surface having an arithmetic average roughness Ra within a range of 0.005 μm to 0.100 μm,
the pressure sensitive adhesive particle has at least two glass transition temperatures, and a difference between the lowest glass transition temperature and the highest glass transition temperature among the glass transition temperatures of the pressure sensitive adhesive particle is 30° C. or more,
a weight-average molecular weight of the (meth)acrylate resin is more than 50,000 to 250,000 or less, and
two (meth)acrylates having a largest and a second-largest mass ratios among the at least two (meth)acrylates contained as the polymerization components in the (meth)acrylate resin are (meth)acrylic acid alkyl esters.