Coating agent compositions, coatings made therefrom and exhibiting high scratch resistance and good polishability, and use thereof

US9371469B2 · kind B2 · utility

Assignee

• BASF COATINGS GMBH · DE

Inventors

• Matthijs Groenewolt · Hachenburg, DE
• Guenter Klein · Munster, DE
• Oliver Hilge · Drensteinfurt, DE
• Berthold Austrup · Selm, DE
• Katharina Huebner · Drensteinfurt, DE

Key dates

• Filing date: May 23, 2012
• Grant date: Jun 21, 2016
• Expiry date: Oct 6, 2032

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/31551
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Compositions comprising (B1) at least one polyisocyanate-group-containing compound (B1) having free or blocked isocyanate groups and a cycloaliphatic polyisocyanate parent structure, and/or a polyisocyanate derived therefrom, and (B2) at least one polyisocyanate-group-containing compound (B2) having free or blocked isocyanate groups and an acyclic, aliphatic polyisocyanate parent structure, and/or a polyisocyanate derived therefrom, where at least one of component (B1) and component (B2) comprise at least one structural unit selected from the group of structural unit (I)—NR—(X—SiR″x(OR′)3-x)  (I),structural unit (II)—N(X—SiR″x(OR′)3-x)n(X′—SiR″y(OR′)3-y)m  (II),and mixtures of two or more of the foregoing, wherein the compound (B1) is in an amount such that the binder fraction of the compound (B1) is between 5% and 45% by weight, based on the sum of the binder fraction of the compound (B1) and of the compound (B2), and the mixture of components (B1) and (B2) includes structural units (I) and structural units (II).