18485180. COMPOSITIONS AND COATINGS FOR UV-VIS AND IR TRANSPARENT THIN FILMS (THE BOEING COMPANY)
COMPOSITIONS AND COATINGS FOR UV-VIS AND IR TRANSPARENT THIN FILMS
Organization Name
Inventor(s)
Andrew P. Nowak of Winnetka CA US
Erik Daniel Crenshaw of Los Angeles CA US
Marcos Pantoja of Saint Louis MO US
Jeffrey Daniel Britton of Webster Groves MO US
COMPOSITIONS AND COATINGS FOR UV-VIS AND IR TRANSPARENT THIN FILMS
This abstract first appeared for US patent application 18485180 titled 'COMPOSITIONS AND COATINGS FOR UV-VIS AND IR TRANSPARENT THIN FILMS
Original Abstract Submitted
Compositions and coatings for thin films designed to protect surfaces and windows from environmental abrasion (e.g., sand, dust, and rubbing) that are transparent in visual and infrared wavelengths are disclosed. The compositions comprise thiol-containing copolymers comprising: (1) 10-(3-butyl-2-hexyl-6-(9-mercaptononyl)cyclohexyl) decane-1-thiol; and (2) a multifunctional terminally unsaturated hydrocarbon monomer; wherein (1) and (2) are combined to form a UV curable crosslinked thermoset polymer network and no particulate fillers are added to the composition. The films exhibit a specular transmission of greater than 70% in the visual spectrum at about 400-700 nm, and IR wavelengths at about 4-5 μm, and about 7.5-12 μm when applied to a surface of a substrate in a coating thickness of about 1-500 μm. A method for making the films involving an UV initiated thiol-ene curing mechanism is also provided.