Radiation curable coatings based on uretdione polyisocyanates

Details Radiation curable coatings based on uretdione polyisocyanates Radiation curable coatings based on uretdione polyisocyanates

2006-11-14

2006-11-14

Gorr, Rachel (Department: 1711)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Compositions to be polymerized by wave energy wherein said...

C528S049000, C528S073000, C528S075000

Reexamination Certificate

active

07135505

ABSTRACT:
A radiation curable coating composition that includes from about 5 to about 70% by weight of the reaction product of i) one or more polyisocyanates, where at least 10 equivalent percent of the isocyanate groups are in the form of uretdione groups, and ii) one or more hydroxy functional lactone ester (meth)acrylates. The amount of component i), on an isocyanate equivalent basis, is equal to the amount of hydroxy equivalents of hydroxy containing materials in the composition. The composition can be used to coat substrates by coating at least a portion of the substrate with the above-described coating composition and subjecting the coated substrate to radiation.

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patent: 6534128 (2003-03-01), Carlson et al.
patent: 29 14 982 (1980-10-01), None

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