Patent ID: 11884837
Assignee: BASF COATINGS GMBH
Field: Basic materials chemistry (Chemistry)
Classification: CPC C | IPC B  C

Claim 4:
5. A 2K solvent borne coating composition obtained by combining and mixing components (A) and (B) of the coating system according to claim 1, comprising:
an epoxy resin, wherein the epoxy resin is an acrylic resin having an epoxy group in a side chain;
a carboxylic acid resin including carboxylic acid groups;
a solvent;
optionally, a catalyst;
optionally, an additive; and
at least one compound of formula (I):

[(ER)x(R′O)y(HO)z(R″)t(SiO(4-x-y-z-t))]m  (I)

wherein
ER is an alkyl group substituted with an epoxide group or a cycloalkyl group substituted with an epoxide group,
R′ is an alkyl group of 1 to 6 carbon atoms,
R″ is an alkyl group of 1 to 20 carbon atoms which may be linear, branched or cyclic,
x is a number from 0 to 2,
y is a number from 0 to 4,
z is a number from 0 to 3,
t is a number from 0 to 2,
at least one of x and y is greater than 0, x+y+z+t=4, and
m is =1, and/or oligomer or polymer compounds of the compound of formula (I), wherein partial hydrolysis and condensation provides structures containing epoxy side chains (ER), said structures containing up to 5000 monomeric units m;
wherein a total % by mass content of the at least one compound of formula (I) is from 5 to 50% of a total mass of solids of the solvent borne coating composition.