Appeal 2007-0296
Application 09/873,714
The Appellants claim a process for repair coating of vehicle substrates
which comprises applying to a metal substrate a filler coating composition
which includes (A) a binder having free-radically polymerizable olefinic
double bond(s), (B) a free-radically polymerizable reactive diluent
comprising a (meth)acrylic acid ester formed by reacting (meth)acrylic acid
with a cycloaliphatic alcohol, and (C) a compound having a phosphoric acid
group and at least one free-radically polymerizable double bond. Further
details regarding this claimed process are set forth in representative claims 1
and 8, which read as follows:
1. A process for repair coating of vehicle substrates which comprises:
a) applying a filler layer of a filler coating composition to a metal
substrate,
b) curing the resultant filler layer by irradiations with high energy
radiation and
c) applying a top coat layer to the cured filler layer and curing the top
coat layer,
wherein the liquid filler coating composition comprises
(A) 15-60 weight-% of at least one free-radically polymerizable
binder comprising at least one free-radically polymerizable olefinic double
bond, said binder having fewer than three of said olefinic double bonds per
molecule,
B) 40-85 weight-% of a free-radically polymerizable reactive diluent
comprising at least one (meth)acrylic acid ester having an olefinic double
bond, said at least one (meth)acrylic acid ester being formed by reacting
(meth)acrylic acid with at least one cycloaliphatic alcohol, wherein the
weight-% of components A) and B) adds up to 100 weight-%, and
2
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Last modified: September 9, 2013