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US 12,528,889 B2Granted
Combination of photoinitiators and uses thereof
AssigneeIgm Resins Italia S.R.L.
InventorsAngelo Casiraghi, Gabriele Norcini, Stephen Postle
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Abstract
The present invention relates to a homogeneous liquid/fluid combination of photoinitiators with improved formulability, reactivity and surface curing performances, more particularly to novel combinations of acylphosphine oxides and ketocoumarins, optionally further combined with at least one co-initiator.
Claims10
A combination of photoinitiators comprising:
- a′ 60 to 90% by weight, of at least one Norrish Type I photoinitiator selected from acylphosphine oxides;
- b′ 1 to 20% by weight, of at least one, Norrish Type II photoinitiator selected from ketocoumarins;
- and
- c′ 0 to 20% by weight, of at least one co-initiator.
1 more element
Dependencies are inferred from the claim text.