US 12,115,766 B2
Methods for uniform adhesive bondline control for 3D cold formed curved laminate
Peter Knowles, Elmira, NY (US); Arpita Mitra, Columbus, OH (US); Linda Frances Reynolds-Heffer, Horseheads, NY (US); and Arlin Lee Weikel, Mansfield, PA (US)
Assigned to CORNING INCORPORATED, Corning, NY (US)
Appl. No. 17/290,938
Filed by CORNING INCORPORATED, Corning, NY (US)
PCT Filed Oct. 22, 2019, PCT No. PCT/US2019/057395
§ 371(c)(1), (2) Date May 3, 2021,
PCT Pub. No. WO2020/092060, PCT Pub. Date May 7, 2020.
Claims priority of provisional application 62/754,581, filed on Nov. 1, 2018.
Prior Publication US 2021/0370659 A1, Dec. 2, 2021
Int. Cl. B32B 37/00 (2006.01); B32B 7/14 (2006.01); B32B 17/00 (2006.01); B32B 17/06 (2006.01); B32B 37/12 (2006.01); B32B 37/14 (2006.01); B32B 37/18 (2006.01); B32B 38/00 (2006.01); B32B 38/18 (2006.01)
CPC B32B 37/1292 (2013.01) [B32B 7/14 (2013.01); B32B 17/061 (2013.01); B32B 37/1207 (2013.01); B32B 37/144 (2013.01); B32B 37/18 (2013.01); B32B 38/0008 (2013.01); B32B 38/1866 (2013.01); B32B 2307/412 (2013.01); B32B 2315/08 (2013.01); B32B 2457/20 (2013.01); B32B 2605/003 (2013.01); B32B 2605/08 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A method for controlling an adhesive bondline while cold forming a curved decorated or non-decorated glass substrate, the method comprising:
positioning a glass substrate proximate a frame comprising a viewing area at least partially surrounded by the frame and at least one curvature;
applying a spacer or gap controlling material along a perimeter of the glass substrate or a perimeter of the frame, the spacer or gap controlling material having a first height;
positioning a structural adhesive between the frame and the glass substrate to form the adhesive bondline;
engaging the glass substrate, the frame and the spacer or gap controlling material to cold form the glass substrate to the shape of the frame; and
one or both of vacuum forming and mechanically securing the glass substrate to the frame to hold the frame against the structural adhesive such that the spacer or gap controlling material controls a height and a width of the adhesive bondline formed by the structural adhesive to maintain the adhesive bondline.