Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Compositions to be polymerized by wave energy wherein said...
Patent
1994-11-14
1996-12-17
Berman, Susan W.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Compositions to be polymerized by wave energy wherein said...
522 75, 522 81, 522 79, 522182, C08F 250, C08J 328, C08K 322, C08K 500
Patent
active
055854150
ABSTRACT:
Very low gloss finishes are attained in pigmented, radiation curable coatings by inclusion of a combination of photoinitiators 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 wrinkling effect.
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Diehl David A.
Gorzalski Peter J.
Berman Susan W.
Chirgott Paul S.
Millman Dennis G.
PPG Industries Inc.
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