• 专利标题:   Curing primer used in self-stratifying anticorrosive coating involves e.g. curing epoxy monomer and diisocyanate with diamine and chemically binding the diamine to the epoxy monomer, where when all of the diisocyanate has been consumed the curing of the primer occurs.
  • 专利号:   US2021284847-A1, US11242463-B2
  • 发明人:   HAMMER T, VIRTANEN J
  • 专利权人:   TESLA NANOCOATINGS INC
  • 国际专利分类:   C09D133/08, C09D175/02, C09D133/10, C08K003/04, C09D007/61, C09D135/08, C09D183/16, C09D163/00, C09D004/06, C09D007/40, C09D005/00, C09D005/10, C08K003/08
  • 专利详细信息:   US2021284847-A1 16 Sep 2021 C09D-005/10 202187 English
  • 申请详细信息:   US2021284847-A1 US333613 28 May 2021
  • 优先权号:   US814334, US333613

▎ 摘  要

NOVELTY - Curing (M1) a primer, comprises: mixing an epoxy monomer with diisocyanate; adding dimeric oxazolidine to the mixture of epoxy monomer and diisocyanate, where a diamine is formed after hydrolysis; curing the epoxy monomer and the diisocyanate with the diamine; and chemically binding the diamine to the epoxy monomer, where when all of the diisocyanate has been consumed the curing of the primer occurs. USE - The method is useful for curing primer, which is useful in self-stratifying anticorrosive coating (all claimed). ADVANTAGE - The method: utilizes the some water scavengers to prevent siloxane formation inside the coating; and utilizes the primer monomer or polymer to provide barrier properties. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) a self-stratifying coating comprising a primer comprising difunctional bisphenol A/epichlorohydrin derived liquid epoxy resin, multi-walled carbon nanotube dispersion in solvent naphtha, a non-reactive polyamide thixotrope, metal particles and silane, a top coat comprising molecular sieve powder and a silane mixture, and a polyamide curing agent; and (2) a self-stratifying (M2) anticorrosive coating on an associated substrate comprising mixing together a photopolymerizable material, a solvent, a graphitic material, and sacrificial metal particles, adding a material that prevents polymerization of the photopolymerizable material inside the coating before, and immediately after, application on the associated substrate and adding a silane mixture.