公开(公告)号：US11180617B2

公开(公告)日：2021-11-23

申请号：US15737661

申请日：2017-05-15

Applicant: Shengyi Technology Co., Ltd.

Inventor： Jiang Li ,  Long Xi

IPC: C08J3/20 ,  C08J5/24 ,  C08K3/02 ,  C08K3/04 ,  C08K3/34 ,  C08K3/36 ,  H05K1/03 ,  H05K3/02

Abstract: The present invention relates to a method for preparing a benzoxazine-containing resin composition and a prepreg and a laminate made therefrom. The method for preparing a benzoxazine-containing resin composition is adding an acidic filler to a benzoxazine-containing resin composition. By adding an acidic filler to the benzoxazine-containing resin composition, the present invention promotes greatly the polymerization reaction of benzoxazine and epoxy resin, reduces the curing temperature required for polymerization of benzoxazine and epoxy resin. The laminate prepared from the benzoxazine-containing resin composition, to which an acidic filler is added, has high anti-stripping stability, high glass transition temperature, low water absorption, high heat resistance, high bending strength and good processability, and can achieve low coefficient of thermal expansion.

公开(公告)号：US10513608B2

公开(公告)日：2019-12-24

申请号：US15736887

申请日：2017-03-29

Applicant: SHENGYI TECHNOLOGY CO., LTD.

Inventor： Long Xi ,  Jiang Li ,  Yongjing Xu

IPC: C08L79/06 ,  C08J5/24 ,  H05K1/03 ,  H05K3/46 ,  C08L63/00

Abstract: The present invention relates to a process for preparing a resin composition comprising benzoxazine, a prepreg and a laminate prepared therefrom. Said resin composition comprising benzoxazine is prepared by adding an acidic filler into the resin composition comprising benzoxazine, wherein said resin composition comprising benzoxazine comprises a benzoxazine resin, an epoxy resin A1 having an epoxy equivalent of 150-450, and an epoxy resin A2 having an epoxy equivalent of 451-1000. By adding an acidic filler into the resin composition, the present invention promotes the polymerization of benzoxazine and epoxy resins, and decreases the curing temperature needed for the polymerization of benzoxazine and epoxy resins. The laminates prepared from the resin composition added with an acidic filler have a high anti-stripping stability, a high glass transition temperature, a low water absorption, a high heat resistance, a high bending strength and a better processability, and achieves a low coefficient of thermal expansion.