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US 7,521,487 B2Granted
Pressure-sensitive adhesive with dual crosslinking mechanism
AssigneeTesa SE
InventorsSven Hansen, Marc Husemann, Kay Brandes, Stephan Zollner
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Abstract
A process for preparing a polyacrylate-based shaped article, a polyacrylate being polymerized by a conventional method, wherein the polyacrylate comprises copolymerized comonomers having thermally crosslinkable groups and comonomers having attached photoinitiators, and the polyacrylate is crosslinked thermally in a first step and by irradiation with UV light in a second step.
Claims10
A process for preparing a polyacrylate-based shaped article, said process comprising the following steps:
- a) forming a polyacrylate by copolymerizing comonomers having thermally crosslinkable groups and comonomers having attached photoinitiators,
- b) thermally crosslinking the polyacrylate formed, and subsequently
- c) crosslinking the polyacrylate by irradiation with UV light.
Dependencies are inferred from the claim text.