US 12,269,913 B2
Polythiol composition and applications thereof
Takeshi Nishimura, Yanagawa (JP); Masayuki Furuya, Arao (JP); and Kouji Suesugi, Arao (JP)
Assigned to MITSUI CHEMICALS, INC., Tokyo (JP)
Appl. No. 17/619,843
Filed by MITSUI CHEMICALS, INC., Tokyo (JP)
PCT Filed Jul. 14, 2020, PCT No. PCT/JP2020/027362
§ 371(c)(1), (2) Date Dec. 16, 2021,
PCT Pub. No. WO2021/010392, PCT Pub. Date Jan. 21, 2021.
Claims priority of application No. 2019-131886 (JP), filed on Jul. 17, 2019.
Prior Publication US 2022/0363805 A1, Nov. 17, 2022
Int. Cl. C08G 18/38 (2006.01); C08G 18/76 (2006.01); G02B 1/04 (2006.01)
CPC C08G 18/3876 (2013.01) [C08G 18/7642 (2013.01); G02B 1/041 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A polythiol composition, comprising:
a polythiol compound (A) including at least one of 4,8-dimercaptomethyl-1,11-dimercapto-3,6,9-trithiaundecane, 4,7-dimercaptomethyl-1,11-dimercapto-3,6,9-trithiaundecane, or 5,7-dimercaptomethyl-1,11-dimercapto-3,6,9-trithiaundecane, and
a polythiol compound (B) that is 4-mercaptomethyl-1,8-dimercapto-3,6-dithiaoctane, wherein, in a high performance liquid chromatography measurement, a peak area of the polythiol compound (B) is 10 or less with respect to a total peak area 100 of compounds included in the polythiol composition and a peak area of the polythiol compound (A) is 76 or more with respect to a total peak area 100 of compounds included in the polythiol composition.