公开(公告)号：US20240174798A1

公开(公告)日：2024-05-30

申请号：US18283582

申请日：2022-03-22

申请人： TOYOBO MC Corporation

发明人： Hiroki OKAJIMA ,  Tadahiko MIKAMI ,  Ryosuke KANDA

IPC分类号： C08G63/688 ,  B65D65/42 ,  C08J7/04 ,  C08K3/36 ,  C09D7/40 ,  C09D7/45 ,  C09D7/61 ,  C09D7/63 ,  C09D7/65 ,  C09D167/02 ,  C09J11/04 ,  C09J11/06 ,  C09J11/08 ,  C09J167/02

CPC分类号： C08G63/6886 ,  B65D65/42 ,  C08J7/0427 ,  C08K3/36 ,  C09D7/45 ,  C09D7/61 ,  C09D7/63 ,  C09D7/65 ,  C09D7/69 ,  C09D167/02 ,  C09J11/04 ,  C09J11/06 ,  C09J11/08 ,  C09J167/02 ,  C08J2367/00 ,  C08J2467/02 ,  C08K2201/005

摘要： An object of the present invention is to provide an adhesive composition and a coating composition that have storage stability, high adhesiveness, and excellent blocking resistance and water resistance. The present invention provides a crystalline polyester resin comprising: a polyvalent carboxylic acid component and polyhydric alcohol component as a copolymerization components, wherein, 30 to 70 mol % of terephthalic acid, 10 to 60 mol % of 1,4-cyclohexanedicarboxylic acid, 5 to 30 mol % of aliphatic dicarboxylic acid having 10 or smaller of carbon atoms, and less than 3 mol % of an aromatic dicarboxylic acid component having a sulfonate group are contained as the polyvalent carboxylic acid component; and 50 to 100 mol % of 1,4-butanediol is contained as the polyhydric alcohol; wherein, an acid value of the crystalline polyester resin is 100 to 600 eq/t; a glass transition temperature of the crystalline polyester resin is −30 to 30° C.; a melting point of the crystalline polyester resin is 70 to 160° C.; and a number-average molecular weight of the crystalline polyester resin is 5000 to 40000.