Coating processes – With post-treatment of coating or coating material – Heating or drying
Reexamination Certificate
2006-02-07
2006-02-07
Mullis, Jeffrey (Department: 1711)
Coating processes
With post-treatment of coating or coating material
Heating or drying
C427S375000, C427S386000, C427S388200, C525S088000, C525S09200D, C525S09200D, C525S096000, C525S418000, C528S272000
Reexamination Certificate
active
06994888
ABSTRACT:
A protective coating composition in an organic liquid carrier comprising a polymeric film forming binder, the polymeric binder comprising by weight:(a) 50% to 100% of an epoxy-polyester block copolymer being the reaction product of a preformed epoxy resin and a preformed carboxyl functional, and (b) 0 to 50% of a crosslinker where the sum of (a) and (b) is 100%,characterised in that the carboxyl functional polyester prepolymer is the reaction product of one or more polyols with one or more dicarboxylic acids or their anhydrides, where the dicarboxylic acids or anhydrides comprise a mixture of (i) 20% to 45% of an aromatic dicarboxylic acid or its anhydride, (ii) 55% to 80% of cyclohexane dicarboxylic acid, and (iii) 0 to 10% other aliphatic dicarboxylic acid, where the sum of (i), (ii), and (iii) is 100% based on the weight of the dicarboxylic acid and anhydride components.
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Imperial Chemical Industries PLC
Mullis Jeffrey
Stachel Kenneth J.
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