Abstract: The invention relates to a high gloss car wash-resistant coating composition comprising a hydroxyl-functional binder and a cross-linker reactive with the hydroxyl groups of the binder and a method to prepare such a car wash-resistant coating. The invention further relates to the use of said coating composition, as a pigment-free top coat or a clear coat, in the finishing and refinishing of articles, for example motorcycles, cars, trains, buses, trucks, and aeroplanes. The coating composition after curing forms a coating having an initial gloss of at least 81 GU and a loss of gloss (LoG) of less than 0.18, the loss of gloss being determined by the formula (I): LoG=A+B·E?·(X)?1·10(C·?Tg)+D·(E?)?0.5; wherein A=0.0132, B=1.0197, C=0.0113, and D=0.0566, E? reflects the tensile storage modulus at 40° C. in GPa, ?Tg the width of the glass transition temperature in ° C., and X the cross-link density parameter in kPA/K all three parameters determined in a DMTA test at 11 Hz and a heating rate of 5° C./min.

Abstract: A coating composition comprising a hydroxy group-containing film forming polymer with a hydroxy value between 75 and 300 mg KOH/g solid resin, a polyisocyanate compound, and a diol of the general formula HO—CH2—CR(C2H5)—CH2—OH, wherein R is an alkyl group having 3-6 carbon atoms. The invention further relates to a method of coating which comprises said coating composition being applied to a substrate, and to a coated substrate, in particular cars and large transport vehicles.

Abstract: The present invention relates to a coating composition comprising; A) at least one polyester oligomer prepared from reactants comprising a) 20 60 wt. % of at least one polyol, b) 5 30 wt. % of at least one polycarboxylic acid selected from the group of cyclic polycarboxylic acids, the esters or the anhydrides thereof, wherein the carboxyl groups are separated by 3 carbon atoms or less, and from the group of &agr;,&bgr;-saturated acyclic polycarboxylic acids, the esters or the anhydrides thereof, and c) 20 60 wt % of at least one monocarboxylic acid, the sum of the wt. % indicated for the reactants (a), (b), and (c) always being 100 wt. %, and the oligomer being a low-viscosity oligomer having a weight average molecular weight Mw of less than 5,000, and a hydroxyl number in the range of about 200 to about 400 mg KOH/g oligomer, and B) at least one polyisocyanate.

Abstract: The invention pertains to a coating composition comprising a polyacetoacetate and a crosslinker for said polyacetoacetate wherein the crosslinker is present in an amount insufficient to crosslink all acetoacetate groups and the polyacetoacetate has a number average molecular weight less than 1000. The coating composition may also comprise an organosilane. The organosilane preferably comprises at least one amino group, amino-containing group, epoxy group, epoxy-containing group, mercapto group, mercapto-containing group, vinyl group, vinyl-containing group, isocyanate group, isocyanate-containing group, ureido group, ureido-containing group, imidazole group or imidazole-containing group. The coating composition is particularly useful as a primer for an aluminium substrate.

Abstract: Aqueous coating composition, for example for use as a clear or pigmented top coat or a primer, comprising: a) a polyol or a mixture of polyols having at least two hydroxy groups per molecule and: i a content C of carboxylate- and/or carboxylic acid-functional groups and ii a content S of sulfonate- and/or sulfonic acid-functional groups, and b) one or more cross-linkers capable of reacting with hydroxy groups. A Polyol having a content C of carboxylate- and/or carboxylic acid-functional groups and a content S of sulfonate- and/or sulfonic acid-functional groups, the total content C+S being between 0.09 and 0.6 mmol/gram polyol, and the ratio C/S having a value between 0.5 to 20 and a process for preparing the polyol resin.

Abstract: Aqueous coating composition, for example for use as a clear or pigmented top coat or a primer, comprising:

Abstract: The invention pertains to a coating composition comprising a polyacetoacetate, a crosslinker for said polyacetoacetate and an organosilane. The organosilane preferably comprises at least one amino group, amino containing-group, expoxy group, epoxy-containing group, mercapto group, mercapto-containing group, vinyl group, vinyl-containing group, isocyanate group, isocyanate-containing group, ureido group, ureido-containing group, imidazole group or imidazole-containing group. The coating composition is particularly useful as a primer for an aluminum substrate.

Abstract: The invention pertains to a coating composition comprising a polyacetoacetate and a crosslinker for said polyacetoacetate wherein the crosslinker is present in an amount insufficient to crosslink all acetoacetate groups and the polyacetoacetate has a number average molecular weight less than 1000. The coating composition may also comprise an organosilane. The organosilane preferably comprises at least one amino group, amino-containing group, epoxy group, epoxy-containing group, mercapto group, mercapto-containing group, vinyl group, vinyl-containing group, isocyanate group, isocyanate-containing group, ureido group, ureido-containing group, imidazole group or imidazole-containing group. The coating composition is particularly useful as a primer for an aluminium substrate.