Patent ID: 11890844
Assignee: SCHOTT AG
Field: Surface technology, coating (Chemistry)
Classification: CPC B  C  Y | IPC B  C

Claim 10:
11. The method of claim 1, wherein the step of adjusting the viscosity of the glass further comprises adjusting the viscosity of the glass η2 at a distance y2 that is between 12 m and 16 m downstream of the flow rate control component has a maximum viscosity deviation (Δlg η2/dPa·s) equal to at most 0.3 and the following equation applies:

lg η2(y2)/dPa·s=(lg η02/dPa·s+a2(y2))

where 12 m≤y2≤16 m
7.05≤lg η02/dPa·s≤7.6
a2(y2)=0.788/m*(y2−12 m) being a positive change in the range of viscosities to be adjusted over 12 m≤y2≤16 m.