US Patent Application 18026268. Hardcoat Composition Comprising Methyl or Ethyl Trialkoxy Silane, Articles and Methods simplified abstract
Hardcoat Composition Comprising Methyl or Ethyl Trialkoxy Silane, Articles and Methods
Organization Name
3M INNOVATIVE PROPERTIES COMPANY
Inventor(s)
Naiyong Jing of St. Paul MN (US)
Jordan C. Ducharme of Apple Valley MN (US)
Gezahegn D. Damte of Cottage Grove MN (US)
Hardcoat Composition Comprising Methyl or Ethyl Trialkoxy Silane, Articles and Methods - A simplified explanation of the abstract
This abstract first appeared for US patent application 18026268 titled 'Hardcoat Composition Comprising Methyl or Ethyl Trialkoxy Silane, Articles and Methods
Simplified Explanation
- The patent application describes articles that have a substrate and a hardcoat layer on top of it. - The hardcoat layer is made up of a reaction product of a composition that includes hydrophobic silane monomers. - Optional second silane monomers can also be included in the hardcoat layer. - The hardcoat layer may contain silica nanoparticles in a certain weight percentage. - A hydrophilic silane surface layer can be added on top of the hardcoat layer. - The patent application also includes a method for using articles with a rewritable surface, as well as methods for making the hardcoat compositions and articles.
Original Abstract Submitted
Articles are described comprising a substrate and a hardcoat layer disposed on the substrate. The hardcoat layer comprises the hydrolyzed and condensed reaction product of a composition comprising: i) first hydrophobic silane monomer(s) having the formula RSi(OR)wherein R and Ris methyl or ethyl; ii) optional second silane monomer(s) having the formula (R)Si(OR)or Si(OR), wherein R, Rand Rare organic groups with the proviso that Ris not methyl or ethyl and m ranges from 1 to 3. The hardcoat layer N may further comprises 10 to 30 wt. % silica nanoparticles. A surface layer comprising a hydrophilic silane may be disposed on the hardcoat layer. Also described is a method of using an article having a rewritable surface, hardcoat coating compositions, and methods of making hardcoat compositions and articles.
