Coating material with high solids content, esp. for painting cars

Coating material with a high solids content (I), contg. (A) OH gp.-contg. copolymer(s) with an OH no. of 100-160 mg KOH/g., an acid no. of 10-50, a mol. wt. (Mn) of 1000-3000 and a Tg of 30-80 deg C, derived from (al) 8-12 wt.% vinyl ester(s) of alpha , alpha -dialkyl-substd., branched, satd. alipha...

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Bibliographische Detailangaben
Hauptverfasser:	BREMER, GERHARD. DR., 50226 FRECHEN, DE, LEY, OLAF, 42329 WUPPERTAL, DE, KRUMME, MANFRED, 50374 ERFTSTADT, DE, STEPHAN, WERNER., 42111 WUPPERTAL, DE, KERBER, HERMANN, 42369 WUPPERTAL, DE
Format:	Patent
Sprache:	eng ; ger
Schlagworte:	ADHESIVES APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS COMPOSITIONS BASED THEREON CORRECTING FLUIDS DYES FILLING PASTES INKS MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS ORGANIC MACROMOLECULAR COMPOUNDS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING PERFORMING OPERATIONS POLISHES PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL SPRAYING OR ATOMISING IN GENERAL THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING USE OF MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	Coating material with a high solids content (I), contg. (A) OH gp.-contg. copolymer(s) with an OH no. of 100-160 mg KOH/g., an acid no. of 10-50, a mol. wt. (Mn) of 1000-3000 and a Tg of 30-80 deg C, derived from (al) 8-12 wt.% vinyl ester(s) of alpha , alpha -dialkyl-substd., branched, satd. aliphatic acid(s), (a2) 32-42 wt.% hydroxyalkyl (meth)acrylate(s), (a3) 25-40 wt.% alkyl (meth)acrylate(s), (a4) 12-24 wt.% unsubstituted or substd. cycloalkyl (meth)acrylate(s) and (a5) 2-4 wt.% (meth)acrylic acid; (B) polyisocyanate(s) in the amt. required to provide 0.5-2 NCO gps. per OH gp. in (A); and (C) solvent(s) and opt. pigments, fillers and/or normal paint additives. Also claimed is a multilayer painting process involving the application of at least two topcoats, in which material (I) is used for the prodn. of a filler coat and/or a pigmented or transparent topcoat.