Basf Corporation

Basf Coatings Ag

Basf Coatings Gmbh

Vincent Cook

Hubert Baumgart

Donald H Campbell

Sandra Hasse

Uwe Meisenburg

John A Gilbert

Norbert Löw

Bruce Oermann

Jorn Lavalaye

Helmut Kleine Beckmann

William Bearyman

Mixtures curable thermally and with actinic radiation and containing carbamate and/or allophanate groups, comprising

Mixtures which contain carbamate groups and/or allophanate groups and can be cured thermally and by using actinic radiation

Hardenable mixture of substances, production method and use thereof

Clearcoat coating composition for automotive exterior coatings with improved intercoat adhesion to a subsequently applied coating layer and improved flexibility contains (a) a first vinyl copolymer prepared from a monomer mixture including no more than about 35% by weight of nonfunctional monomers that has carbamate functionality and hydroxyl functionality, at least part of the hydroxyl functionality being on monomer units including an optionally branched alkyl group having at least about six carbon atoms; (b) a second vinyl copolymer having hydroxyl functionality, preferably primary hydroxyl functionality; and (c) a curing agent component that includes at least an aminoplast curing agent and optionally a polyisocyanate curing agent. The polyisocyanate curing agent is preferably blocked with a blocking agent that volatilizes during the cure reaction, regenerating a reactive isocyanate group.

Clearcoat composition with improved adhesion

The invention provides coating compositions having improved scratch and mar resistance. The curable coating compositions of the invention comprise a film-forming component (A) comprising one or more active hydrogen containing components (a), and one or more curing agents (b) comprising at least one aminoplast resin (bi) having from 0.5 to 3.5 moles of NH per mole of aminoplast resin (bi), a blocked acid catalyst (B) having a blocking agent which is not a tertiary amine, and a tertiary amine (C) present in an amount equal to 10 to 150% by weight of the blocking agent. The invention farther provides a method of making cured coated substrates having improved scratch and mar resistance as well as a method of making multilayer coating compositions.

Curable coating compositions having improved compatibility and scratch and mar resistance, cured coated substrates made therewith and methods for obtaining the same

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Münster, Germany

Vincent Cook