• 专利标题:   Aqueous adhesive for manufacture of laminated cellulosic board, comprises water, starch, polymer, glue enhancer, and stabilizing agents, gelling agents, thickener, antifoaming agents, tackifier and/or damp-proofing resins.
  • 专利号:   EP3789467-A1, US2021071048-A1, WO2021048203-A1, CN114502682-A, EP4028482-A1, KR2022122970-A, IN202217020711-A, BR112022004263-A2, US2022340790-A1, JP2022547166-W
  • 发明人:   ZURUTUZA ELORZA A, ORTEGA MURGUIALDAY A, ALONSO RODRIGUEZ B, ZURUTUZA E A, ORTEGA M A, ALONSO R B, ZURUTUSA E A, ORTEGAMURGIALDEI A, ELORZA A Z, MURGUIALDAY A O, RODRIGUEZ B A
  • 专利权人:   GRAPHENEA SA, GRAPHENEA SA, GRAPHENEA SA
  • 国际专利分类:   B32B029/00, C09J103/04, B32B037/12, B32B007/10, B32B009/06, C09J103/02, C09J011/04, C09J005/00, D21J001/00, B32B029/08, B32B007/12, D21H027/30, D21H017/28, D21H019/54, D21H027/40, B31D001/02, B32B021/08, B32B027/34, C08K003/04, C09J011/06, C09J011/08
  • 专利详细信息:   EP3789467-A1 10 Mar 2021 C09J-103/04 202126 Pages: 18 English
  • 申请详细信息:   EP3789467-A1 EP382779 09 Sep 2019
  • 优先权号:   EP382779, BR11004263, KR711677, CN80070923

▎ 摘  要

NOVELTY - An aqueous adhesive comprises water, starch, optionally at least one further polymer selected from natural polymers or soluble synthetic polymers, a glue enhancer comprising monolayer graphene oxide in water, and at least one further component selected from stabilizing agents, gelling agents, thickening agents, antifoaming agents, tackifier and damp-proofing resins. USE - Aqueous adhesive used for manufacture of laminated cellulosic boards (all claimed) such as cardboard or paper laminates e.g. cardboard blanks. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) use of monolayer graphene oxide as the glue enhancer for the adhesive; (2) production of the adhesive, which involves mixing starch, water and glue enhancer which is suspended in 0.1-0.001 wt.% monolayer graphene oxide in water; (3) production of a laminated cellulosic board, which involves providing at least two cellulosic plies, applying the adhesive to at least a portion of the surface of a cellulosic ply, contacting the surface of cellulosic ply to another cellulosic ply, and repeating the method to obtain the laminated cellulosic board; and (4) laminated cellulosic board, comprising at least two cellulosic plies attached with one another using the adhesive.