Particle Mixture
Patent No. EP3665131 (titled "Particle Mixture") was filed by Fenzi AGT Netherlands on Jul 16, 2018. The application was issued on May 3, 2023.
Patent Summary
A particle mixture for applying enamel to substrates, such as automotive glass, comprises particles of glass frit and particles of a crystalline oxide material. The glass frit consists of 25 to 65 wt.% silicon oxide ($\text{SiO}_2$), 19 to 59 wt.% zinc oxide ($\text{ZnO}$), and $>0$ to 6 wt.% sulfur ($\text{S}$). The particle mixture has a $\text{D}_{90}$ particle size of less than 5 microns. The mixture may be used in an ink for screen printing, roller coating, or inkjet printing. When fired, particularly during pressure forming of glass, the mixture provides improved anti-stick properties against dies or moulds and enables the production of thin enamels ($\le 12$ microns) with high optical density ($\ge 2.5$) to prevent UV degradation of adhesives.
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Date
Description
EP3665131
- Application Number
- EP18745700A
- Filing Date
- Jul 16, 2018
- Status
- Granted And Under Opposition
- Mar 31, 2023
- Publication Date
- May 3, 2023
- External Links
- Slate, Register , Google Patents