公开(公告)号：US11072724B2

公开(公告)日：2021-07-27

申请号：US15563953

申请日：2016-04-18

Applicant: ALLNEX NETHERLANDS B.V.

Inventor： Rien Goedegebuure ,  Ferry Ludovicus Thys ,  Elwin Aloysius Cornelius Adrianus De Wolf ,  Richard Hendrikus Gerrit Brinkhuis ,  Michael Anthony Gessner ,  Antonius Johannes Wilhelmus Buser

IPC: C09D167/02 ,  C09D163/00 ,  C08J3/24 ,  B05D1/02 ,  C08L63/00 ,  C08L67/02 ,  C09D17/00 ,  B05D3/02 ,  B05D3/10 ,  C08G61/12

Abstract: The invention relates to an adhesion promotor for improving adhesion on a substrate surface of an RMA crosslink able composition comprising one or more crosslinkable components comprising a reactive component A with at least two acidic protons C—H in activated methylene or methine groups, a reactive component B with at least two activated unsaturated C═C groups, a catalyst C for catalyzing the RMA crosslinking reaction between components A and B, said adhesion promotor P comprising a moiety comprising one or more functional groups X or precursors thereof readable with component A or component B and a moiety comprising one or more functional groups Y or precursors thereof that adsorb or react with the substrate surface not being an alkoxysilane group. The invention also relates to a RMA crosslinkable composition, also in the form of a kit of parts, to a premix for use as a part in the kit of parts.

公开(公告)号：US10759962B2

公开(公告)日：2020-09-01

申请号：US15563955

申请日：2016-04-18

Applicant: ALLNEX NETHERLANDS B.V.

Inventor： Rien Goedegebuure ,  Ferry Ludovicus Thys ,  Elwin Aloysius Cornelius Adrianus De Wolf ,  Richard Hendrikus Gerrit Brinkhuis ,  Michael Anthony Gessner ,  Antonius Johannes Wilhelmus Buser ,  David James Sauer

IPC: B05D1/02 ,  B05D3/02 ,  B05D3/10 ,  C09D167/02 ,  C09D163/00 ,  C08J3/24 ,  C08L63/00 ,  C08L67/02 ,  C09D17/00 ,  C08G61/12

Abstract: A method for applying a RMA crosslinked coating with improved adhesion, comprising the steps of applying on the substrate surface a layer of a modified epoxy primer comprising an epoxy functional polymer binder and a crosslinker, wherein adhesion of the RMA crosslinked coating to the epoxy primer layer is improved by said primer comprising after curing functional groups X reactable with crosslinkable components of the RMA crosslinkable composition or a precursor of functional groups X, preferably a moisture deblockable precursor. The invention also relates to modified epoxy primers, compositions for improving adhesion of epoxy primers and use thereof to improve adhesion of RMA crosslinkable coatings.