C - Chemistry – Metallurgy – 09 – D
Patent
C - Chemistry, Metallurgy
09
D
C09D 5/32 (2006.01) C09D 4/00 (2006.01) C09D 201/00 (2006.01)
Patent
CA 2143607
Very low gloss finishes are attained in pigmented, radiation curable coatings by inclusion of a combination of photoinitia- tors having an acylphosphine oxide photoinitiator and a second photoinitiator such as an acetophenone derivative. In the method of producing the low gloss finishes, the coating is first exposed to ionizing radiation (e.g., electron beam) in air, then exposed to actinic radiation (ultraviolet light) in an essentially inert atmosphere. The low gloss is achieved by a fine, uniform surface wrin- kling effect.
Diehl David A.
Gorzalski Peter J.
Borden Ladner Gervais Llp
Ppg Industries Inc.
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