公开(公告)号：US20220213242A1

公开(公告)日：2022-07-07

申请号：US17606872

申请日：2020-07-07

申请人： NOF CORPORATION

发明人： Akihiro Yamada ,  Takeshi Yoshimura ,  Hiroyuki Ogi ,  Tatsuya Aono

IPC分类号： C08F212/08 ,  C08F212/10 ,  C08L91/06 ,  C08L25/14 ,  C08L25/06

摘要： An object is to provide a wax dispersant capable of improving the resin composition in the fluidity in a molten state, the transparency and the storage stability, when adding the wax to a thermoplastic resin. The wax dispersant is a copolymer (A) which has a copolymerization composition comprising structural units respectively derived from: an aromatic monomer (A1) within 40 to 94% by mass; a (meth)acrylic acid long chain alkyl ester (A2) represented by the formula (1) (an alcohol residue R2 is C9 to C22 alkyl) within 5 to 40% by mass; and a (meth)acrylic acid alkyl ester (A3) represented by the formula (2) (an alcohol residue R4 is C1 to C8 alkyl) within 1 to 20% by mass, and also has a weight average molecular weight within 3,000 to 50,000.