US 12,435,215 B2
Flame-resistant resin composition, method for manufacturing same, and hydrogenated petroleum resin
Hiroshi Kawasaki, Tokyo (JP); Shotaro Uchizawa, Tokyo (JP); and Ichigen Watanabe, Kanagawa (JP)
Assigned to ENEOS MATERIALS CORPORATION, Tokyo (JP)
Appl. No. 17/601,553
Filed by ENEOS Materials Corporation, Tokyo (JP)
PCT Filed Apr. 8, 2020, PCT No. PCT/JP2020/015884
§ 371(c)(1), (2) Date Oct. 5, 2021,
PCT Pub. No. WO2020/209311, PCT Pub. Date Oct. 15, 2020.
Claims priority of application No. 2019-074679 (JP), filed on Apr. 10, 2019.
Prior Publication US 2022/0195175 A1, Jun. 23, 2022
Int. Cl. C08L 57/02 (2006.01); C08K 3/22 (2006.01)
CPC C08L 57/02 (2013.01) [C08K 2003/2206 (2013.01); C08K 2003/2217 (2013.01); C08K 2003/2227 (2013.01)] 4 Claims
 
1. A flame retardant resin composition consisting of:
a hydrogenated petroleum resin, being a hydrogenated product of a polymer of an alicyclic compound having a five-membered ring and an aromatic hydrocarbon compound;
a polyolefin;
an inorganic filler; and
at least one additive selected from the group consisting of an antioxidant, a lubricant, a processing stabilizer, a coloring agent, a foaming agent, and a reinforcing agent; wherein
a content of the hydrogenated petroleum resin is 1% by mass or more and 25% by mass or less, based on the total amount of flame retardant resin composition,
a content of the polyolefin is 5% by mass or more and 35% by mass or less, based on the total amount of the flame retardant resin composition,
a content of the additive is 0% by mass or more and 5% by mass or less, based on the total amount of the flame retardant resin composition,
a ratio of a content C1 of the aromatic hydrocarbon compound to a content C2 of the alicyclic compound, C1/C2 (mass ratio), is 0.25 or more and 1.38 or less, and
the polyolefin is at least one selected from the group consisting of an ethylene/vinyl acetate copolymer and an ethylene/ethyl acrylate copolymer.