US 12,103,272 B2
Resin composition for laminated glass interlayer, laminated glass interlayer, and laminated glass
Motoaki Isokawa, Chiba (JP); Norihiko Sato, Chiba (JP); Kana Kukita, Chiba (JP); and Shun Tobinaga, Chiba (JP)
Assigned to DOW-MITSUI POLYCHECMICALS CO., LTD., Tokyo (JP)
Appl. No. 17/438,313
Filed by DOW-MITSUI POLYCHEMICALS CO., LTD., Tokyo (JP)
PCT Filed Mar. 6, 2020, PCT No. PCT/JP2020/009651
§ 371(c)(1), (2) Date Sep. 10, 2021,
PCT Pub. No. WO2020/189335, PCT Pub. Date Sep. 24, 2020.
Claims priority of application No. 2019-053411 (JP), filed on Mar. 20, 2019.
Prior Publication US 2022/0184928 A1, Jun. 16, 2022
Int. Cl. B32B 17/10 (2006.01); C08L 23/08 (2006.01)
CPC B32B 17/10623 (2013.01) [B32B 17/10 (2013.01); B32B 17/10036 (2013.01); B32B 17/10743 (2013.01); C08L 23/0876 (2013.01); B32B 2264/104 (2013.01); B32B 2307/412 (2013.01)] 7 Claims
 
1. A resin composition for a laminated glass interlayer used for forming a laminated glass interlayer, the resin composition comprising:
an ionomer (A) of an ethylene-unsaturated carboxylic acid-based copolymer; and
an inorganic filler (B),
wherein a volume-based cumulative 10% diameter (D10) of the inorganic filler (B) as measured by a laser diffraction scattering method is equal to or more than 0.1 μm and equal to or less than 10 μm,
the ionomer (A) of the ethylene-unsaturated carboxylic acid-based copolymer comprises one or more metal ions selected from the group consisting of magnesium ion and zinc ion, and
the inorganic filler (B) comprises calcium carbonate.