Chemical agent resistant coating compositions
AssigneePPG Industries Ohio, Inc.
InventorsLAWRENCE J. FITZGERALD, Anthony M. Chasser, DeAnna D. Katz
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Abstract
A chemical agent resistant coating composition can include a fluoropolymer, a flatting agent, and a hydrophobic additive. When the composition is applied to a substrate and cured as a coating, the coating has an 85° gloss of less than 3.5, a water contact angle of greater than 80°, and desorbs a maximum of 180 micrograms of bis(2-chloroethyl) sulfide and a maximum of 40 micrograms of O-pinacolyl methylphosphonofluoridate, according to testing under MIL-PRF-32348. A method of preparing chemical agent resistant coating compositions and substrates at least partially coated with the chemical agent resistant coating compositions are also disclosed.
Claims19
A chemical agent resistant coating composition comprising:
- a fluoropolymer,
- a flatting agent comprising at least 10 weight % based on the total solids weight of the coating composition;
- and
- a hydrophobic additive comprising a wax,
- wherein when the composition is applied to a substrate and cured as a coating, the coating has an 85° gloss of less than 3.5, a water contact angle of greater than 80°, and desorbs a maximum of 180 micrograms of bis(2-chloroethyl) sulfide and a maximum of 40 micrograms of O-pinacolyl methylphosphonofluoridate, according to testing under MIL-PRF-32348.
A method of preparing a chemical agent resistant coating composition comprising mixing a fluoropolymer, a flatting agent such that the flatting agent comprises at least 10 weight % of the composition based on the total solid weight of the coating composition, and a hydrophobic additive comprising a wax, wherein when the coating composition is applied to a substrate and cured as a coating, the coating has an 85° gloss of less than 3.5, a water contact angle of greater than 800, and desorbs a maximum of 180 micrograms of bis(2-chloroethyl) sulfide and a maximum of 40 micrograms of O-pinacolyl methylphosphonofluoridate, according to testing under MIL-PRF-32348.
Dependencies are inferred from the claim text.