• 专利标题:   Single-component thermally conductive hot-melt polyurethane adhesive useful in electronic products comprises polyester polyol, polyether polyol, heat-conducting medium, flame-retardant medium, isocyanate and additive.
  • 专利号:   CN115926713-A
  • 发明人:   CHEN Z
  • 专利权人:   WUXI BOJIN POLYMER RES DEV CO LTD
  • 国际专利分类:   C08G018/42, C08G018/44, C08G018/48, C09J011/04, C09J175/04, C09J007/35
  • 专利详细信息:   CN115926713-A 07 Apr 2023 C09J-175/04 202338 Chinese
  • 申请详细信息:   CN115926713-A CN11356397 01 Nov 2022
  • 优先权号:   CN11356397

▎ 摘  要

NOVELTY - Single-component heat-conducting hot-melt polyurethane adhesive comprises 20-60 pts. wt. polyester polyol, 0-20 pts. wt. polyether polyol, 20-70 pts. wt. heat-conducting medium, 5-30 pts. wt. flame-retardant medium, 5-15 pts. wt. isocyanate and 2-10 pts. wt. additive. USE - The single-component heat-conducting hot-melt polyurethane adhesive is useful in electronic products with heat dissipation and flame retardant requirements. ADVANTAGE - The single-component heat-conducting hot-melt polyurethane adhesive: realizes heat dissipation and heat transfer protection of electronic products; has polyurethane suitable viscosity and fluidity. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing single-component heat-conducting hot-melt polyurethane adhesive comprising mixing and heating polyester polyol, polyether polyol, heat conduction medium, flame retardant medium and additives to 110-130℃, and vacuum drying to remove water for 60 minutes, (ii) cooling to 100℃, adding isocyanate, heating to 130-150 ℃, reacting for 1-3 hours and (iii) vacuum defoaming to obtain the product.