• 专利标题:   Preparing anti-lightning and anti-static epoxy resin comprises e.g. adding dimethyl hydantoin to reactor, stirring and cooling, stopping flowing nitrogen, adding functionalized graphene slurry, injecting into mold, placing it in vacuum box to exhaust, and cooling to normal temperature.
  • 专利号:   CN113930055-A
  • 发明人:   WEI S, ZHA X
  • 专利权人:   HEFEI JINYI TECHNOLOGY CO LTD
  • 国际专利分类:   C08G059/06, C08K003/04, C08K009/00, C08L063/02
  • 专利详细信息:   CN113930055-A 14 Jan 2022 C08L-063/02 202221 Chinese
  • 申请详细信息:   CN113930055-A CN11298042 04 Nov 2021
  • 优先权号:   CN11298042

▎ 摘  要

NOVELTY - Preparing anti-lightning and anti-static epoxy resin comprises (1) adding 20-35 pts. wt. bisphenol A, 50-80 pts. wt. acetone and 40-50 pts. wt. epichlorohydrin to reactor, filling with nitrogen, raising temperature to 55-70degrees Celsius, adding 2-4 pts. wt. catalyst and 30-40 pts. wt. sodium hydroxide solution, adjusting pH to 8-8.3, raising temperature to 86-90degrees Celsius again, and stirring, (2) adding 10-20 pts. wt. 5,5-dimethyl hydantoin to reactor, raising temperature to 80-100degrees Celsius, and stirring for 1-2 hours, (3) cooling reaction solution to 20-40degrees Celsius, and stopping flowing nitrogen, (4) adding 5-10 pts. wt. methacrylamide and 20-25 pts. wt. solvent to reactor, stirring, controlling pressure at 1-1.2 MPa, adding 0-3 pts. wt. functionalized graphene slurry, raising temperature to 50-70degrees Celsius, adding 1-3 pts. wt. stabilizer, and keeping temperature for 2-3 hours, and (5) injecting into mold, placing in vacuum box to exhaust, and cooling to normal temperature. USE - The method is useful for preparing anti-lightning and anti-static epoxy resin.