Patent · US Active

Scratch-resistant-coated polycarbonates with high transparency, process for their production, and their use

US9266998B2 · kind B2 · utility

2Cited by

6References

20Claims

0Family size

Assignee

BASF COATINGS GMBH · DE

Inventors

Jan-Bernd Kues · Munster, DE
Matthijs Groenewolt · Hachenburg, DE
Karin Homann · Steinfurt, DE
Stefanie Schroeder · Munster, DE
Andre Brosseit · Hamm, DE

Key dates

Filing date	Mar 27, 2010
Grant date	Feb 23, 2016
Priority date	—
Expiry date	Jun 3, 2031

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/31507
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The present invention relates to a process for the coating of polycarbonate substrates, in particular of transparent polycarbonate substrates, by applying a transparent coating composition encompassing at least one radiation-curing binder resin (A) and/or reactive diluent (C), nanoparticles (B), optionally solvent and at least one light stabilizer (L), to a polycarbonate substrate, wherein the coating composition comprises at least one light stabilizer (L) which comprises, per molecule, an average of at least one ethylenically unsaturated group bonded by way of a urethane group.The present invention also relates to the coating compositions used in said process, and to the coated polycarbonate substrates obtainable via the process, and to their use.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.