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US 6,191,195 B1Granted
Heat-curable coating materials
AssigneeEMS-Inventa AG
InventorsAndreas Kaplan, Manfred Wenzler, Juerg Heinz
Life of this patent
Estimating the term…
Abstract
The invention relates to a heat-curing coating material consisting of a carboxyl-functional polyester, and an epoxy resin and also at least one additional stabilizer.
Claims7
Heat-curing coating material consisting of
- (A) a carboxyl-functional polyester prepared by a condensation reaction of aliphatic and/or cycloaliphatic polyols with aliphatic and/or cycloaliphatic and/or aromatic polycarboxylic acid and anhydrides, where the polyester has a Tg in the range from 30° C. to 80° C. and an acid number of from about 20 to 100 [mg of KOH/g], and
- (B) an epoxy resin based on bisphenol A and epichlorohydrin, where the equivalents ratio of epoxy equivalents to carboxylic acid equivalents lies within the range from 0.6 to 1.2, and
- (C) at least one compound of the following general formulae (I)-(X)
- I:
- with R1=OH, R2=OR7, R3, R4, R5, R6, R7=H or C1-C10-alkyl linear and/or branched
- II:
- with R1=OH, R4=OR7, R2, R3, R5, R6, R7=H or C1-C10-alkyl linear and/or branched
- III:
- with R1=OH, R2=OR9, R3, R4, R5, R6, R7, R8, R9=H or C1-C10-alkyl inear and/or branched
- IV:
- with R1=OH, R4=OR9, R2, R3, R5, R6, R7, R8, R9=H or C1-C10-alkyl linear and/or branched
- V:
- with R1=OH, R8=OR9, R2, R3, R4, R5, R6, R7, R9=H or C1-C10-alkyl linear and/or branched
- VI:
- with R2=OH, R6=OR9, R2, R3, R4, R5, R7, R8, R9=H or C1-C10-alkyl linear and/or branched
- VII:
- with R1=OH, R4=OR11, R2, R3, R5, R6, R7, R8, R9, R10, R11=H or C1-C10-alkyl linear and/or branched
- VIII:
- with R2=OH, R6=OR11, R1, R3, R4, R5, R7, R8, R10, R11=H or C1-C10-alkyl linear and/or branched
- IX:
- with R9=OH, R10=OR11, R1, R2, R3, R4, R5, R6, R7, R8, R11=H or C1-C10-alkyl linear and/or branched
- X:
- with R9=OH, R10=OR11, R1, R2, R3, R4, R5, R6, R7, R8, R11=H or C1-C10-alkyl linear and/or branched
- and, if desired, pigments and/or fillers and/or heat stabilizers, preferably phosphites and/or triboadditives and/or further additives, such as, for example, leveling agents and devolatilizing agents.
21 more elements
A heat-curing coating material comprising:
- (A) a carboxyl-functional polyester prepared by a condensation reaction of aliphatic and/or cycloaliphatic polyols with aliphatic and/or cycloaliphatic and/or aromatic polycarboxylic acid and anhydrides, where the polyester has a Tg in the range from 30° C. to 80° C. and an acid number of from about 20 to 100 [mg of KOH/g], and
- (B) an epoxy resin based on bisphenol A and epichlorohydrin, where the equivalents ratio of epoxy equivalents to carboxylic acid equivalents lies within the range from 0.6 to 1.2, and
- (C) at least one compound of the following general formulae (I)-(X)
- I:
- with R1=OH, R2=OR7, R3, R4, R5, R6, R7=H or C1-C10-alkyl linear and/or branched
- II:
- with R1=OH, R4=OR7, R2, R3, R5, R6, R7=H or C1-C10-alkyl linear and/or branched
- III:
- with R1=OH, R2=OR9, R3, R4, R5, R6, R7, R8, R9=H or C1-C10-alkyl inear and/or branched
- IV:
- with R1=OH, R4=OR9, R2, R3, R5, R6, R7, R8, R9=H or C1-C10-alkyl linear and/or branched
- V:
- with R1=OH, R8=OR9, R2, R3, R4, R5, R6, R7, R9=H or C1-C10-alkyl linear and/or branched
- VI:
- with R2=OH, R6=OR9, R2, R3, R4, R5, R7, R8, R9=H or C1-C10-alkyl linear and/or branched
- VII:
- with R1=OH, R4=OR11, R2, R3, R5, R6, R7, R8, R9, R10, R11=H or C1-C10-alkyl linear and/or branched
- VIII:
- with R2=OH, R6=OR11, R1, R3, R4, R5, R7, R8, R10, R11=H or C1-C10-alkyl linear and/or branched
- IX:
- with R9=OH, R10=OR11, R1, R2, R3, R4, R5, R6, R7, R8, R11=H or C1-C10-alkyl linear and/or branched
- X:
- with R9=OH, R10=OR11, R1, R2, R3, R4, R5, R6, R7, R8, R11=H or C1-C10-alkyl linear and/or branched.
20 more elements
Dependencies are inferred from the claim text.