Patent · US Active

Plastic substrates having a scratch-resistant coating, in particular housings of electronic devices, having high transparency, method for the production thereof, and use thereof

US9017819B2 · kind B2 · utility

4Cited by

7References

15Claims

0Family size

Assignee

BASF COATINGS GMBH · DE

Inventors

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

Key dates

Filing date	Oct 2, 2010
Grant date	Apr 28, 2015
Priority date	—
Expiry date	Feb 13, 2031

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/31573
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The disclosed method comprises applying a transparent coating composition to a plastics substrate, the composition comprising30% to 60% by weight of a nanoparticles (B), 15% to 40% by weight, of urethane (meth)acrylates (A1) having 3 to 5 (meth)/acrylate groups per molecule, 0% to less than 10% by weight of urethane (meth)acrylates (A2) having more than 5 (meth)/acrylate groups per molecule, 0% to less than 10% by weight of urethane (meth)acrylates (A3) having less than 3 (meth)/acrylate groups per molecule, 55% to 80% by weight of compounds (C1) having 4 (meth)/acrylate groups per molecule, 0% to 15% by weight of compounds (C2) having 2 (meth)/acrylate groups per molecule, and 0% to 15% by weight of compounds (C3) having 3 (meth)/acrylate groups per molecule, the sum of the weight fractions of film-forming components (A1), (A2), (A3), (C1), (C2), and (C3) being in each case 100% by weight.

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