• 专利标题:   Preparing modified polyurea polyurethane coating useful as surface film coating on protected or decorated object, comprises e.g. adding polyurea resin, acrylic emulsion, isocyanate, polyurethane, aluminum hypophosphite flame retardant, modified carbon nanotubes and bentonite agent, and stirring.
  • 专利号:   CN114605901-A
  • 发明人:   DU L, DAI Z, DU W
  • 专利权人:   SHENZHEN LONGMAX NEW MATERIAL TECHNOLOGY
  • 国际专利分类:   C09D175/02, C09D175/04, C09D005/18, C09D007/62
  • 专利详细信息:   CN114605901-A 10 Jun 2022 C09D-175/02 202290 Chinese
  • 申请详细信息:   CN114605901-A CN10411636 19 Apr 2022
  • 优先权号:   CN10411636

▎ 摘  要

NOVELTY - Preparing modified polyurea polyurethane coating comprises (i) sequentially adding 10-20 pts. wt. polyurea resin, 5-10 pts. wt. acrylic emulsion, 5-10 pts. wt. isocyanate, 1-4 pts. wt. polyurethane, 2-5 pts. wt. aluminum hypophosphite flame retardant, 1-2 pts. wt. modified carbon nanotubes and 1-3 pts. wt. bentonite agent, (ii) adding into the mixer for mixing and stirring treatment, stirring at a rotational speed of 300-400 revolutions/minute for 20-30 minutes, (iii) continuously stirring at rotating speed of 600-800 revolutions/minute for 15-25 minutes, and completing the stirring to obtain stirring material, and (iv) adding the stirring material into the mixer, where the rotating speed is 1200-1500 revolutions/minute, and stirring for 1-2 hours to obtain modified polyurea polyurethane coating. USE - The method is useful for preparing modified polyurea polyurethane coating, which is used as a surface film coating on the protected or decorated object. ADVANTAGE - The method improves and optimizes flame retardant property of the modified polyurea polyurethane coating by adding bentonite agent, and improves flame retardant efficiency of the modified polyurea polyurethane coating.