• 专利标题:   Wet-graphene polyurethane resin for synthetic leather, comprises polyester polyol, polyether polyol, chain extender, isocyanate, solvent, graphene, terminator, and additives and prepared by making polyester polyol and polyether polyol.
  • 专利号:   CN110804152-A
  • 发明人:   WANG S
  • 专利权人:   JIANGSU HUADA NEW MATERIAL CO LTD
  • 国际专利分类:   C08G101/00, C08G018/32, C08G018/42, C08G018/44, C08G018/48, C08G018/66, C08K003/04
  • 专利详细信息:   CN110804152-A 18 Feb 2020 C08G-018/66 202022 Pages: 7 Chinese
  • 申请详细信息:   CN110804152-A CN10971717 14 Oct 2019
  • 优先权号:   CN10971717

▎ 摘  要

NOVELTY - Wet-graphene polyurethane resin comprises 3-20 wt.% polyester polyol, 3-20 wt.% polyether polyol, 0.5-1 wt.% chain extender, 2-10 wt.% isocyanate, 60-75 wt.% solvent, 0.01-0.1 wt.% graphene, 0.01-0.1 wt.% terminator, and 0.1-0.5 wt.% additives. USE - Wet-graphene polyurethane resin used for synthetic leather. ADVANTAGE - The wet-graphene polyurethane resin is easy to prepare and cost-effective, and has excellent conductivity, and antistatic property. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing a wet-graphene polyurethane resin, which involves: (A) making polyester polyol and polyether polyol, chain extender, graphene at 100-120 degrees C, vacuum degree of -0.09--0.1MPa, dehydrating for 1-3 hours; (B) reducing at temperature to 70-80 degrees C, adding solvent, and isocyanate, mixing uniformly, carrying out reaction at 75 degrees C, and adding another portion of the solvent, when the viscosity reaches 200,000-300,000 cps / 25 degrees C; and (C) adding terminator to stop the reaction, and adding auxiliary is added, stirring mixture and discharging to obtain final product.