The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 17, 1996
Filed:
Nov. 14, 1994
Applicant:
Inventors:
Peter J Gorzalski, Racine County, WI (US);
David A Diehl, Ross Twp., PA (US);
Assignee:
PPG Industries, Inc., Pittsburgh, PA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ; C08J / ; C08K / ; C08K / ;
U.S. Cl.
CPC ...
522 18 ; 522 75 ; 522 81 ; 522 79 ; 522182 ;
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.