Michael G Morin

US Patent:

20150072083, Mar 12, 2015

Filed:

Sep 9, 2013

Appl. No.:

14/021388

Inventors:

Ahmet Nebioglu - Winsted CT, US
Michael A. Morin - Bristol CT, US
Christopher Alan Cayer - Bristol CT, US
Marufur Rahim - Avon CT, US

Assignee:

DYMAX CORPORATION - TORRINGTON CT

International Classification:

C09D 169/00
C09D 5/00
C23C 26/00

US Classification:

427520, 522174, 427514

Abstract:

A method for shielding a metal substrate surface during the application of heat to the surroundings of the substrate which comprises. A liquid maskant composition is formed which comprises: a) at least one of a polycarbonate urethane diacrylate oligomer, a polycarbonate urethane dimethacrylate oligomer, a polycarbonate caprolactone urethane diacrylate oligomer, or a polycarbonate caprolactone urethane dimethacrylate oligomer; b) a reactive diluent capable of free radical polymerization; and c) a photoinitiator capable of generating free radicals when exposed to actinic radiation. The maskant composition is applied onto a surface of the substrate. The maskant composition is then exposed to sufficient actinic radiation to polymerize or crosslink the composition into a dried maskant. In use the dried maskant is heated on the substrate to a temperature of from about 400 F. to about 600 F. for from about 20 minutes to about 30 minutes, and then the maskant is removed.