公开(公告)号：US10538611B2

公开(公告)日：2020-01-21

申请号：US15304773

申请日：2015-04-17

Applicant: NIPPON A&L INC.

Inventor： Kazuhiro Ishigaki ,  Kiyoshi Ikawa ,  Taisuke Yukawa

IPC: C08L25/12 ,  C08L51/06 ,  C08L69/00 ,  C08F255/00 ,  C08F255/02 ,  C08F255/10 ,  C08L51/04

Abstract: Provided is a graft copolymer (A) obtainable by graft-polymerizing, in the presence of 30 to 80 parts by mass of an ethylene-based polymer (a), an aromatic vinyl-based monomer (b) and, if necessary, another vinyl-based monomer (c) copolymerizable with the aromatic vinyl-based monomer (b) in a total amount of 20 to 70 parts by mass (provided that the sum of the components (a), (b) and (c) is 100 parts by mass), in which the ethylene-based polymer (a) has a density of 0.900 g/cm3 or more and less than 0.966 g/cm3, a number average molecular weight of 10,000 to 50,000, and a molecular weight distribution of 5 to 15, and the proportion of the ethylene-based polymer (a) molecules having a molecular weight of 10,000 or less is 5.5% or more.

公开(公告)号：US10508167B2

公开(公告)日：2019-12-17

申请号：US15304773

申请日：2015-04-17

Applicant: NIPPON A&L INC.

Inventor： Kazuhiro Ishigaki ,  Kiyoshi Ikawa ,  Taisuke Yukawa

IPC: C08L25/12 ,  C08L51/06 ,  C08L69/00 ,  C08F255/00 ,  C08F255/02 ,  C08F255/10 ,  C08L51/04

Abstract: Provided is a graft copolymer (A) obtainable by graft-polymerizing, in the presence of 30 to 80 parts by mass of an ethylene-based polymer (a), an aromatic vinyl-based monomer (b) and, if necessary, another vinyl-based monomer (c) copolymerizable with the aromatic vinyl-based monomer (b) in a total amount of 20 to 70 parts by mass (provided that the sum of the components (a), (b) and (c) is 100 parts by mass), in which the ethylene-based polymer (a) has a density of 0.900 g/cm3 or more and less than 0.966 g/cm3, a number average molecular weight of 10,000 to 50,000, and a molecular weight distribution of 5 to 15, and the proportion of the ethylene-based polymer (a) molecules having a molecular weight of 10,000 or less is 5.5% or more.

公开(公告)号：US10118982B2

公开(公告)日：2018-11-06

申请号：US15304773

申请日：2015-04-17

Applicant: NIPPON A&L INC.

Inventor： Kazuhiro Ishigaki ,  Kiyoshi Ikawa ,  Taisuke Yukawa

IPC: C08F255/02 ,  C08F255/00 ,  C08L51/06 ,  C08L69/00 ,  C08F255/10 ,  C08L25/12

Abstract: Provided is a graft copolymer (A) obtainable by graft-polymerizing, in the presence of 30 to 80 parts by mass of an ethylene-based polymer (a), an aromatic vinyl-based monomer (b) and, if necessary, another vinyl-based monomer (c) copolymerizable with the aromatic vinyl-based monomer (b) in a total amount of 20 to 70 parts by mass (provided that the sum of the components (a), (b) and (c) is 100 parts by mass), in which the ethylene-based polymer (a) has a density of 0.900 g/cm3 or more and less than 0.966 g/cm3, a number average molecular weight of 10,000 to 50,000, and a molecular weight distribution of 5 to 15, and the proportion of the ethylene-based polymer (a) molecules having a molecular weight of 10,000 or less is 5.5% or more.