US 11,753,520 B2
Unsaturated polyester resin composition, molding material, and molded article
Ikuo Akai, Shizuoka (JP); and Masahiro Hakotani, Shizuoka (JP)
Assigned to JAPAN COMPOSITE CO., LTD., Tokyo (JP)
Appl. No. 17/911,706
Filed by JAPAN COMPOSITE CO., LTD., Tokyo (JP)
PCT Filed Oct. 4, 2021, PCT No. PCT/JP2021/036682
§ 371(c)(1), (2) Date Sep. 15, 2022,
PCT Pub. No. WO2022/075277, PCT Pub. Date Apr. 14, 2022.
Claims priority of application No. 2020-169180 (JP), filed on Oct. 6, 2020.
Prior Publication US 2023/0227623 A1, Jul. 20, 2023
Int. Cl. C08K 3/04 (2006.01); C08K 3/22 (2006.01); C08J 5/04 (2006.01)
CPC C08K 3/04 (2013.01) [C08J 5/043 (2013.01); C08K 3/22 (2013.01); C08J 2367/07 (2013.01); C08K 2003/2227 (2013.01)] 5 Claims
 
1. An unsaturated polyester resin composition comprising:
a resin component containing an unsaturated polyester and a polymerizable monomer;
an aluminum hydroxide; and
an expandable graphite, wherein
a mixing ratio of the aluminum hydroxide to 100 parts by mass of the resin component is 50 parts by mass or more and 300 parts by mass or less,
a mixing ratio of the expandable graphite to 100 parts by mass of the resin component is 3 parts by mass or more and 10 parts by mass or less, and
an average particle size of the expandable graphite is 150 μm or less.