公开(公告)号：US20180265752A1

公开(公告)日：2018-09-20

申请号：US15537142

申请日：2015-12-22

Applicant: IDEMITSU KOSAN CO., LTD.

Inventor： Kanako SAMEJIMA ,  Harumi NAKASHIMA ,  Yutaka MINAMI ,  Tomoaki TAKEBE

IPC: C09J123/14 ,  C09J11/06 ,  C09J123/08 ,  C09J5/00

Abstract: A base polymer for hot-melt adhesive, containing a propylenic polymer (A) having a tensile modulus of elasticity of 60 MPa or more, and an olefinic polymer (B) having a tensile modulus of elasticity of less than 60 MPa, wherein, relative to 100 parts by mass of the total amount of the propylenic polymer (A) and the olefinic polymer (B), the content of the propylenic polymer (A) is 1 part by mass or more and less than 50 parts by mass, and the content of the olefinic polymer (B) is more than 50 parts by mass and 99 parts by mass or less; and a hot-melt adhesive containing the base polymer, and further containing at least one of (C) a tackifier resin and (D) an oil.