US 12,320,038 B2
Filament and fishing line
Hatsuki Oguro, Hiratsuka (JP); Nobuhiko Matsumoto, Hiratsuka (JP); and Takafumi Oda, Hiratsuka (JP)
Assigned to Mitsubishi Gas Chemical Company, Inc., Tokyo (JP)
Appl. No. 17/618,282
Filed by Mitsubishi Gas Chemical Company, Inc., Tokyo (JP)
PCT Filed Apr. 14, 2020, PCT No. PCT/JP2020/016359
§ 371(c)(1), (2) Date Dec. 10, 2021,
PCT Pub. No. WO2020/250564, PCT Pub. Date Dec. 17, 2020.
Claims priority of application No. 2019-108864 (JP), filed on Jun. 11, 2019.
Prior Publication US 2022/0349093 A1, Nov. 3, 2022
Int. Cl. D01F 6/60 (2006.01); A01K 91/00 (2006.01); C08G 69/26 (2006.01); D01F 6/80 (2006.01)
CPC D01F 6/60 (2013.01) [A01K 91/00 (2013.01); C08G 69/26 (2013.01); D01F 6/80 (2013.01); D10B 2401/063 (2013.01)] 15 Claims
 
1. A filament comprising a polyamide resin (A),
the polyamide resin (A) being constituted from a constituent unit derived from a diamine and a constituent unit derived from a dicarboxylic acid, and
all of the constituent units derived from a diamine being derived from xylylene diamine or all of the constituent units derived from a diamine being derived from both xylylene diamine and a diamine other than xylylene diamine, where the diamine other than xylylene diamine is at least one kind of diamine selected from the group consisting of tetramethylene diamine, pentamethylene diamine, 2-methylpentane diamine, hexamethylene diamine, heptamethylene diamine, octamethylene diamine, nonamethylene diamine, decamethylene diamine, dodecamethylene diamine, 2,4,4-trimethylhexamethylene diamine, 1,3-bis(aminomethyl)cyclohexane, 1,4-bis(aminomethyl)cyclohexane, 1,3-diaminocyclohexane, 1,4-diaminocyclohexane, bis(4-aminocyclohexyl)methane, 2,2-bis(4-aminocyclohexyl)propane, bis(aminomethyl)decalin, bis(aminomethyl)tricyclodecane, bis(4-aminophenyl)ether, p-phenylene diamine, and bis(aminomethyl)naphthalene, and
70 mol % or more of the constituent units derived from a dicarboxylic acid being derived from 1,12-dodecanedioic acid, and other constituent units derived from a dicarboxylic acid are derived from the group consisting of succinic acid, glutaric acid, pimelic acid, suberic acid, azelaic acid, adipic acid, phthalic acid compounds, and naphthalene dicarboxylic acid,
wherein the filament is free from plasticizer, and
wherein the xylylene diamine comprises from 10 to 90 mol % of meta-xylylene diamine and from 90 to 10 mol % of para-xylylene diamine, provided that a total of the meta-xylylene diamine and the para-xylylene diamine does not exceed 100 mol %.