US 12,454,592 B2
Graft copolymer, method for preparing the same, and resin composition including the same
Sang Il Nam, Daejeon (KR); Ki Hyun Yoo, Daejeon (KR); Yoon Ho Kim, Daejeon (KR); and Kwang Jin Lee, Daejeon (KR)
Assigned to LG CHEM, LTD., Seoul (KR)
Appl. No. 17/624,893
Filed by LG CHEM, LTD., Seoul (KR)
PCT Filed Apr. 19, 2021, PCT No. PCT/KR2021/004864
§ 371(c)(1), (2) Date Dec. 20, 2022,
PCT Pub. No. WO2021/221367, PCT Pub. Date Nov. 4, 2021.
Claims priority of application No. 10-2020-0052725 (KR), filed on Apr. 29, 2020.
Prior Publication US 2023/0167217 A1, Jun. 1, 2023
Int. Cl. C08F 279/02 (2006.01); C08F 2/24 (2006.01); C08F 212/08 (2006.01); C08F 220/14 (2006.01); C08F 220/18 (2006.01); C08F 228/02 (2006.01); C08F 236/06 (2006.01); C08F 285/00 (2006.01); C08J 3/12 (2006.01); C08L 91/00 (2006.01)
CPC C08F 279/02 (2013.01) [C08F 2/24 (2013.01); C08F 212/08 (2013.01); C08F 220/14 (2013.01); C08F 220/1802 (2020.02); C08F 228/02 (2013.01); C08F 236/06 (2013.01); C08F 285/00 (2013.01); C08J 3/12 (2013.01); C08L 91/00 (2013.01); C08F 2800/20 (2013.01); C08J 2351/04 (2013.01); C08L 2201/52 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A graft copolymer comprising a rubbery polymer,
wherein the rubbery polymer comprises a conjugated diene-based monomer unit, and a soft domain,
the graft copolymer comprises an alkyl (meth)acrylate-based monomer unit, an aromatic vinyl-based monomer unit, and an alkali metal sulfonate-based monomer unit,
the soft domain is formed by comprising a mineral-based oil,
the mineral-based oil comprises 70 wt % to 100 wt % of a mineral oil and 0 wt % to 30 wt % of a silicone-based oil,
the mineral-based oil is comprised in 0.2 parts by weight to 0.5 parts by weight based on 100 parts by weight of the rubbery polymer, and
the alkali metal sulfonate-based monomer unit is comprised in 0.8 wt % to 1.5 wt % based on the graft copolymer.