US 12,233,626 B2
Heatable laminated side glazing
Salah Eddine Ghozali, Gosselies (BE); Charley Razzini, Gosselies (BE); and Pierre Defoy, Gosselies (BE)
Assigned to AGC GLASS EUROPE, Louvain-la-neuve (BE)
Appl. No. 17/906,445
Filed by AGC GLASS EUROPE, Louvain-la-neuve (BE)
PCT Filed Mar. 18, 2021, PCT No. PCT/EP2021/056924
§ 371(c)(1), (2) Date Sep. 15, 2022,
PCT Pub. No. WO2021/185955, PCT Pub. Date Sep. 23, 2021.
Claims priority of application No. 20164643 (EP), filed on Mar. 20, 2020.
Prior Publication US 2023/0135979 A1, May 4, 2023
Int. Cl. B32B 17/10 (2006.01)
CPC B32B 17/10192 (2013.01) [B32B 17/10036 (2013.01); B32B 17/10238 (2013.01); B32B 2255/205 (2013.01); B32B 2264/1051 (2020.08); B32B 2264/1055 (2020.08); B32B 2307/302 (2013.01); B32B 2605/006 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A heatable laminated side glazing, with a curved upper edge, a lower edge, a first lateral side edge, and a second lateral side edge at an opposite side of the first lateral side edge, the heatable laminated side glazing comprising
an outer pane and an inner pane, which outer and inner panes are bonded to one another via a thermoplastic intermediate layer; and
a transparent, heatable coating, which is arranged between the outer pane and the inner pane, and which is electrically contacted by a first busbar having a height (H1) arranged along the first lateral side edge and a second busbar having a height (H2) arranged along the second lateral side edge, and which has, for guiding a heating current flowing between the first and second busbars, a plurality of decoated isolating lines (L) that run between the first and second busbars, the height (H1) of the first lateral side edge being smaller than the height (H2) of the second lateral side edge, the coating having an upper part delimited by a frame-edge line (L1(0)) in a vicinity of the curved upper edge and parallel to the curved upper edge and a line (LD) drawn from a lower corner of the first lateral side edge of the side glazing to extend to the second lateral side edge, the line (LD) being parallel to the frame-edge line (L1(0)), and a lower part delimited by the line (LD) and a line (L2(n)), which is a last line of a last active strip and parallel to the line (LD),
the upper part having a height higher than the height (H1) of the first busbar and having as an upper limit the frame-edge line (L1(0)) and the lower part having a height higher than height (H2) minus height (H1) and having as an upper limit the frame-edge line (L1(0));
wherein in the upper part, n number of consecutive decoated isolated lines parallel to the upper edge separated by a distance from 5 mm to 100 mm and having a same width are provided, wherein n is between 1 to 100, and
wherein in the lower part, there are alternating active and passive coated strips, the passive coating strips (i) being delimited by closed decoated line (L), the active coating strips (i) having a width defined by the formula:
W(i)=L2(i)2/L2(0)2×W0
wherein:
W(i): width of the active coated strip
L2(i): length of the lower side of the (i) active coated strip
L2(0): length of the strip in the upper part
W0: width of the decoated lines in the upper part
and the passive coating strips (i) having a width defined by the formula:
D(i)=W0−W(i)−D(0)
D(0): width of a decoating line.