Patent ID: 9321889
Filing Date: 2016-04-26
CPC Classification: C08G,C08L

Claim Text:
1. A method of manufacturing a copolymer of DCPD-containing benzoxazine (DCPDBz) and cyanate ester resin, the method comprising the steps of: providing DCPD-phenol oligomer, aniline, and paraformaldehyde in a first solvent to form a first solution, allowing the first solution to undergo a reaction at 110° C. for 6-12 hours, extracting and baking the first solution, precipitating and rinsing a product with a second solvent, drying the precipitated rinsed product in a vacuum oven to obtain DCPDBz, mixing a cyanate ester and the DCPDBz at 150° C., and heating the mixture up to 220° C. to produce the copolymer of the thermosetting polymeric DCPDBz and cyanate ester resin.