	US 12,435,173 B2
	Unsaturated polyester resin composition, molding material, and molded article
Ikuo Akai, Shizuoka (JP); Masahiro Hakotani, Shizuoka (JP); and Takashi Tsukamoto, Shizuoka (JP)
Assigned to JAPAN COMPOSITE CO., LTD., Tokyo (JP)
Appl. No. 17/773,086
Filed by JAPAN COMPOSITE CO., LTD., Tokyo (JP)
PCT Filed Nov. 9, 2020, PCT No. PCT/JP2020/041744 § 371(c)(1), (2) Date Apr. 29, 2022, PCT Pub. No. WO2021/095688, PCT Pub. Date May 20, 2021.
Claims priority of application No. 2019-204865 (JP), filed on Nov. 12, 2019.
Prior Publication US 2024/0141090 A1, May 2, 2024
Int. Cl. C08F 283/01 (2006.01); C08K 3/22 (2006.01); C08K 7/14 (2006.01)

CPC C08F 283/01 (2013.01) [C08K 3/22 (2013.01); C08K 7/14 (2013.01); C08K 2003/2227 (2013.01)]

5 Claims

1. A unsaturated polyester resin composition comprising:

an unsaturated polyester;

a vinyl ester;

a polymerizable monomer; and

an aluminum hydroxide,

wherein the vinyl ester is a reaction product of an epoxy resin and an unsaturated monobasic acid,

a mixing ratio of the vinyl ester to 100 parts by mass of the unsaturated polyester is 5 parts by mass or more and 20 parts by mass or less,

a mass ratio of the aluminum hydroxide to the vinyl ester is 22 or more and 45 or less,

the epoxy resin is a bisphenol epoxy resin, and

an epoxy equivalent of the epoxy resin is 250 g/eq or more and 350 g/eq or less.