公开(公告)号：US20190309195A1

公开(公告)日：2019-10-10

申请号：US16315414

申请日：2017-06-29

Applicant: DENKA COMPANY LIMITED

Inventor： Gaito KIYOFUJI ,  Masao ONOZUKA ,  Manabu MIZUSHIMA ,  Shogo HAGIWARA ,  Hironori KONISHI ,  Daisuke SHIMIYA ,  Kazuhiro KOTE

IPC: C09J111/02 ,  C09J11/04 ,  C09J11/06

Abstract: A latex composition gives favorable initial adhesive strength after short drying period, shows storage stability and spray coating characteristics and gives a soft adhesive layer after drying and a one-pack type aqueous adhesive. The latex composition includes a chloroprene-based polymer latex (A) containing a chloroprene-based polymer in an amount of 50 to 85 mass % as solid matter and an acrylic polymer latex (B) having a glass transition temperature of −52 to −9° C. and containing an acrylic polymer containing a sodium alkylbenzenesulfonate having a structure represented by the Chemical Formula (1) in an amount of 15 to 50 mass % as solid matter, in a total amount of 100 parts by mass, and additionally at least one pH regulator (C) selected from boric acid, ammonium sulfate, and amino acids having an isoelectric point of 5.5 to 6.5 in an amount of 3 to 13 parts by mass as solid matter.