Coating processes – Direct application of electrical – magnetic – wave – or... – Pretreatment of substrate or post-treatment of coated substrate
Reexamination Certificate
2004-03-03
2010-10-26
Harlan, Robert D. (Department: 1796)
Coating processes
Direct application of electrical, magnetic, wave, or...
Pretreatment of substrate or post-treatment of coated substrate
C526S220000
Reexamination Certificate
active
07820248
ABSTRACT:
The invention relates to a dual thermal and ultraviolet radiation curable coating composition, comprising a) at least an ethylenically unsaturated compound; b) a hydroxylamine ester effective to enable IR-curing or NIR-curing of the ethylenically unsaturated compound; c) a photoinitiator effective to enable UV-curing of the ethylenically unsaturated compound; wherein the thermal initiator is a hydroxylamine ester which has a structural element of formula (1) or formula (1) or a polymeric hydroxylamine ester which has a repetitive structural unit of formula (11) or (I[′) of formula (11) Furthermore, the invention relates to a process for curing a thermal curable coating composition composing hydroxylamine esters as thermal initiators using NIR-curing.
REFERENCES:
patent: 6900268 (2005-05-01), Fink et al.
patent: 2003/0199640 (2003-10-01), Coleridge et al.
Misev Ljubomir
Nesvadba Peter
Wolf Jean-Pierre
Zeren Sevgi
Ciba Specialty Chemicals Corp.
Harlan Robert D.
Loggins Shiela A.
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