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
2007-02-27
2007-02-27
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
10928803
ABSTRACT:
A curable, aqueous film-forming composition is provided, comprising:(a) a copolymer containing reactive functional groups and comprising at least 30 mol % of residues having alternating structural units:in-line-formulae description="In-line Formulae" end="lead"?-[DM-AM]-in-line-formulae description="In-line Formulae" end="tail"?wherein DM represents a residue from a donor monomer, and AM represents a residue from an acceptor monomer, at least 15 mol % of the copolymer comprising a donor monomer having the structure (I):wherein R1is linear or branched C1to C4alkyl, R2is selected from methyl, linear, cyclic or branched C1to C20alkyl, alkenyl, aryl, alkaryl and aralkyl; and(b) a curing agent having functional groups reactive with the reactive functional groups of (a).The invention is also directed to a multi-component composite coating composition including a base coat deposited from a pigmented film-forming composition and a transparent topcoat applied over the base coat. At least one-coat is the film-forming composition described above.
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Coleridge Edward R.
Grolemund Mary E.
Martin Roxalana L.
Tucker Mark A.
Lipman Bernard
PPG Industries Ohio Inc.
Uhl William J.
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