The present invention pertains to an
epoxy-functional organopolysiloxane resin, and an
epoxy-functional organopolysiloxane
coating composition comprising the
epoxy-functional organopolysiloxane resin. The epoxy-functional organopolysiloxane resin which contains repeating units having the formulae:whereinE is an epoxy-functional C1-18
hydrocarbon group containing one or more
oxygen atoms, provided that no
oxygen atom is directly bonded to a Si- atom; andR1 and R2 are independently a C1-20
hydrocarbon, optionally interspersed with a
heteroatom linking group,a is an integer of 0, 1, or 2, preferably 0 or 1;b is an integer of 0, 1, 2 or 3, preferably 0, 1, or 2;c is an integer of 0, 1, 2 or 3, preferably 0, 1, or 2; andin M units, a+b+c=3,in D units, a+b+c=2,in T units, a+b+c=1,with the proviso that the molecule, on average, contain at least two E components.