US 12,275,821 B2
Remoldable bismaleimide resin and application thereof
Aijuan Gu, Suzhou (CN); Guozheng Liang, Suzhou (CN); and Li Yuan, Suzhou (CN)
Assigned to SOOCHOW UNIVERSITY, Suzhou (CN)
Appl. No. 17/631,389
Filed by SOOCHOW UNIVERSITY, Suzhou (CN)
PCT Filed Jul. 28, 2020, PCT No. PCT/CN2020/105316
§ 371(c)(1), (2) Date Jan. 28, 2022,
PCT Pub. No. WO2021/018158, PCT Pub. Date Feb. 4, 2021.
Claims priority of application No. 201910696965.1 (CN), filed on Jul. 30, 2019.
Prior Publication US 2022/0348718 A1, Nov. 3, 2022
Int. Cl. C08G 73/12 (2006.01); B29B 7/00 (2006.01); B29B 7/82 (2006.01); B29B 9/02 (2006.01); B29C 43/00 (2006.01); B29C 43/52 (2006.01); B29K 96/00 (2006.01); C07D 209/00 (2006.01); C08F 222/40 (2006.01); C08G 59/14 (2006.01); C08J 5/24 (2006.01); C08L 79/08 (2006.01)
CPC C08G 73/124 (2013.01) [B29B 9/02 (2013.01); B29C 43/003 (2013.01); B29C 43/52 (2013.01); C07D 209/00 (2013.01); C08F 222/40 (2013.01); C08F 222/408 (2020.02); C08G 59/14 (2013.01); C08G 73/12 (2013.01); C08G 73/126 (2013.01); C08J 5/24 (2013.01); C08L 79/085 (2013.01); B29B 7/002 (2013.01); B29B 7/826 (2013.01); B29K 2096/00 (2013.01); C08F 2810/20 (2013.01); C08G 2280/00 (2013.01); C08L 2201/08 (2013.01); C08L 2201/12 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A remoldable bismaleimide resin, wherein a preparation method of the remoldable bismaleimide resin comprises the following steps:
(1) in the presence of a quaternary ammonium salt, reacting 2-allylphenyl glycidyl ether and terephthalic acid to prepare bis(3-(2-allylphenoxy)-2-hydroxypropyl) terephthalate;
(2) mixing bis(3-(2-allylphenoxy)-2-hydroxypropyl) terephthalate, bismaleimide, and a zinc compound to obtain a remoldable bismaleimide resin system;
(3) curing and post-treating the remoldable bismaleimide resin system to prepare the remoldable bismaleimide resin.