公开(公告)号：US20180244964A1

公开(公告)日：2018-08-30

申请号：US15752802

申请日：2015-09-15

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Zhenqian Yang ,  Liang Qin ,  Dong Li ,  Ping Zhou ,  Xiongjian Wu

IPC: C09J167/02 ,  C09J7/30 ,  C09J163/00

CPC classification number: C09J167/02 ,  C08L63/00 ,  C08L67/02 ,  C09J7/30 ,  C09J163/00 ,  C09J2463/00 ,  C09J2467/00

Abstract: The present disclosure relates to a B-stageable adhesive composition and an article prepared by the same. In the present disclosure, the adhesive composition comprises the following components in solid content percentage: (A) 10% to 50% by weight of a first epoxy resin with a weight average molecular weight Mw of 8,000 g/mol or more; (B) 5% to 20% by weight of a second epoxy resin with a weight average molecular weight Mw of 200 to 6,000 g/mol; (C) 30% to 80% by weight of a hydroxyl terminated polyester or derivates thereof; (D) 0.1% to 2.5% by weight of a first curing agent capable of reacting with epoxy group; and (E) 0.1% to 2.5% by weight of a second curing agent capable of reacting with hydroxyl group; the sum of components of the composition is equal to 100% by weight. The coating obtained from the adhesive composition of the present disclosure shows high adhesive strength, excellent heat resistance and flame retardance.

公开(公告)号：US20180237669A1

公开(公告)日：2018-08-23

申请号：US15752791

申请日：2015-09-15

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Liang Qin ,  Zhenqian Yang ,  Dong Li ,  Ping Zhou ,  Qunying Liu

IPC: C09J163/00 ,  C09J11/06 ,  C09J11/04

CPC classification number: C09J163/00 ,  C08L63/00 ,  C08L67/02 ,  C09J11/04 ,  C09J11/06 ,  C09J167/02

Abstract: The present disclosure relates to a B-stageable adhesive composition and a coating prepared by the same. In the present disclosure, the adhesive composition comprises the following components in solid content percentage: (A) 15% to 50% by weight of a first epoxy resin with a weight average molecular weight Mw of 8,000 g/mol or more; (B) 3% to 15% by weight of a second epoxy resin with a weight average molecular weight Mw of 200 to 2,000 g/mol; (C) 20% to 50% by weight of a carboxyl terminated polyester or derivates thereof; (D) 0.1% to 2.5% by weight of a first curing agent capable of reacting with epoxy group; (E) 0.1% to 2.5% by weight of a second curing agent capable of reacting with carboxyl group; and (F) 0% to 40% by weight of a flame retardant. The coating obtained from the adhesive composition of the present disclosure shows good adhesion strength, heat resistance and functional properties such as flame retardance and prolonged shelf life.

公开(公告)号：US10392540B2

公开(公告)日：2019-08-27

申请号：US15752791

申请日：2015-09-15

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Liang Qin ,  Zhenqian Yang ,  Dong Li ,  Ping Zhou ,  Qunying Liu

IPC: C09J163/00 ,  C08L63/00 ,  C09J167/02 ,  C09J11/04 ,  C09J11/06 ,  C08L67/02

Abstract: The present disclosure relates to a B-stageable adhesive composition and a coating prepared by the same. In the present disclosure, the adhesive composition comprises the following components in solid content percentage: (A) 15% to 50% by weight of a first epoxy resin with a weight average molecular weight Mw of 8,000 g/mol or more; (B) 3% to 15% by weight of a second epoxy resin with a weight average molecular weight Mw of 200 to 2,000 g/mol; (C) 20% to 50% by weight of a carboxyl terminated polyester or derivates thereof; (D) 0.1% to 2.5% by weight of a first curing agent capable of reacting with epoxy group; (E) 0.1% to 2.5% by weight of a second curing agent capable of reacting with carboxyl group; and (F) 0% to 40% by weight of a flame retardant. The coating obtained from the adhesive composition of the present disclosure shows good adhesion strength, heat resistance and functional properties such as flame retardance and prolonged shelf life.

公开(公告)号：US20230043295A1

公开(公告)日：2023-02-09

申请号：US17757124

申请日：2019-12-27

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Dong Li ,  Zheng Guan

IPC: C09J163/00 ,  C09J7/38

Abstract: The present disclosure relates to a B-stageable epoxy adhesive composition and an article manufactured therefrom. The B-stageable epoxy adhesive composition comprises (A) 20% to 50% by weight of a first epoxy resin with an epoxide equivalent of 5000 g/eq or more; (B) 5% to 20% by weight of a second epoxy resin with an epoxide equivalent of 800 g/eq or less and having 2 to 4 epoxy functional groups; (C) 5% to 30% by weight of a carboxyl terminated polyester; (D) 5% to 15% by weight of a poly-isocyanate modified polyester; and (E) 0.1% to 0.5% by weight of a crosslinking agent containing 2 or more aziridine groups, all the content percentages are based on the total weight of the B-stageable epoxy adhesive composition. The B-stageable epoxy adhesive composition and the related products could be widely used as insulation protection for battery management, bus bar, transformers and other markets with a good balance between a high bonding strength and a high temperature resistance, and others.