Stock material or miscellaneous articles – Composite – Of metal
Reexamination Certificate
2011-01-18
2011-01-18
Kruer, Kevin R. (Department: 1787)
Stock material or miscellaneous articles
Composite
Of metal
C428S480000, C427S388100
Reexamination Certificate
active
07871708
ABSTRACT:
Composite coated metal and/or polymer substrates are provided having a powder basecoat thereon formed from at least one film-forming material comprising a thermosettable polyester and a curing agent; at least one reaction product of at least one cyclic carboxylic acid anhydride, at least one alkene and at least one reactant selected from the group consisting of primary amines, aliphatic polyamines, primary amino alcohols, alcohols, isocyanates and mixtures thereof, the copolymer having a number average molecular weight ranging from about 1,000 to about 20,000; and at least one flow control agent; and a topcoat deposited from a liquid or powder slurry topcoating composition applied over the basecoat to form a composite coating providing good adhesion and chip and cratering resistance.
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Hays Steven W.
Kruer Kevin R.
Meyers Diane R.
PPG Industries Ohio Inc.
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