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US 2026/0258253 A1Published application
Photoinitiators for photocurable compositions
AssigneeCovestro (Netherlands) B.V.
InventorsJohan Franz Gradus Antonius Jansen, Guido Hensen
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Abstract
The present invention relates to an oligomeric photoinitiator according to formula (I) wherein m is equal to or greater than 3, R1, R2 and R3 are independently selected from H or from linear or branched C1-C6 alkyl, and wherein the oligomeric photoinitiator has a weight-average molecular weight Mw as determined by GPC (THF) higher than 1000 g/mol.
Claims24
An oligomeric photoinitiator according to formula (I)
- wherein
- m is equal to or greater than 3,
- R1, R2 and R3 are independently selected from H or from a linear or branched C1-C6 alkyl, and
- wherein the oligomeric photoinitiator has a weight-average molecular weight Mw as determined by GPC (THF) higher than 1000 g/mol, whereby the weight-average molecular weight Mw is determined as described in the description.
1 more element
Dependencies are inferred from the claim text.