Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Reexamination Certificate
2006-11-07
2006-11-07
Lipman, Bernard (Department: 1713)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
C525S110000, C525S123000, C525S124000, C525S127000, C525S130000, C525S327300, C525S328800, C525S329200, C525S330500, C525S374000, C525S380000, C525S384000, C525S386000
Reexamination Certificate
active
07132476
ABSTRACT:
A thermosetting composition that includes an ungelled copolymer composition and a crosslinking agent. The ungelled copolymer composition includes a functional group-containing copolymer that includes segments of alternating residues derived from a donor monomer composition comprising an acceptor monomer composition. The donor monomer composition includes one or both of isobutylene and diisobutylene, and the acceptor monomer composition includes acrylic monomers and monomers containing functional groups. The ungelled copolymer composition is substantially free of transition metals and Lewis acids, and the copolymer is substantially free of maleate-type monomer residues and fumarate-type monomer residues. The crosslinking agent has at least two functional groups that are reactive with the functional groups of the copolymer. The thermosetting composition may be in liquid, powder, or dispersed form and may be applied by traditional or electrocoating methods.
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Coca Simion
Coleridge Edward R.
McCollum Gregory J.
O'Dwyer James B.
Poole James E.
Lipman Bernard
PPG Industries Ohio Inc.
Uhl William J.
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