Whitford Corporation

Daniel C Chung

Leonard W Harvey

Lawrence D Leech

Michael W Miller

Single coat coating systems (), as well as articles coated with such non-stick coating systems, are provided. The single coat system includes a fluoropolymer copolymer (), such as fluoropolymer terpolymer including tetrafluoroethylene, hexafluoropropylene, and vinylidene fluoride monomers, with fluoropolymer copolymers are referred to collectively as THV. The single coat system exhibits excellent substrates adhesion and release properties, is resistant to separation failure at the interface between the binder () and fluoropolymer components (), and exhibits adhesion to smooth substrates (). The single coat system may also include a high level of fillers to provide increased damage resistance without compromising the above benefits.

Single coat non-stick coating system and articles coated with same

Multiple coat non-stick coating systems, as well as articles coated with such non-stick coating systems, are provided. The primer () of the multiple coat system includes a fluoropolymer () copolymer, such as a fluoropolymer terpolymer including tetrafluoroethylene, hexafluoropropylene, and vinylidene fluoride monomers, which fluoropolymer copolymers are referred to collectively as THV. The multiple coat system exhibits excellent substrate adhesion and release properties, and the primer exhibits excellent primer-substrate adhesion and primer-topcoat adhesion. The multiple coat system is additionally resistant to separation failure at the interface between the binder () and fluoropolymer components of the primer, exhibits excellent adhesion to smooth substrates (), and may also include a high level of fillers to provide increased damage resistance without compromising the above benefits.

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Princeton, NJ, United States of America

Daniel C Chung