US 11,986,855 B2
Process and apparatus for extruding bands of material onto a substrate
Xabier Novellas, Molsheim (FR); Francois Crouzet, Molsheim (FR); and Christophe Epp, Molsheim (FR)
Assigned to Zephyros, Inc., Romeo, MI (US)
Filed by Zephyros, Inc., Romeo, MI (US)
Filed on Nov. 23, 2021, as Appl. No. 17/533,636.
Application 17/533,636 is a continuation of application No. 16/337,101, granted, now 11,207,710, previously published as PCT/IB2014/058173, filed on Jan. 10, 2014.
Claims priority of application No. 1300483 (GB), filed on Jan. 11, 2013.
Prior Publication US 2022/0118477 A1, Apr. 21, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. B05D 3/04 (2006.01); B05C 5/00 (2006.01); B29C 48/05 (2019.01); B29C 48/154 (2019.01); B29C 48/92 (2019.01); B05C 5/02 (2006.01); B29C 48/02 (2019.01); B29C 48/14 (2019.01); B29C 48/88 (2019.01); B29C 48/91 (2019.01); B29C 65/48 (2006.01)
CPC B05D 3/042 (2013.01) [B05C 5/001 (2013.01); B29C 48/05 (2019.02); B29C 48/154 (2019.02); B29C 48/92 (2019.02); B05C 5/0216 (2013.01); B29C 48/02 (2019.02); B29C 48/1472 (2019.02); B29C 48/91 (2019.02); B29C 48/917 (2019.02); B29C 65/48 (2013.01); B29C 2948/92476 (2019.02); B29C 2948/92514 (2019.02); B29C 2948/92704 (2019.02)] 20 Claims
OG exemplary drawing
 
1. A process for application of a heat flowable adhesive material to a substrate comprising:
a) extruding the heat flowable adhesive material from an extrusion die of an extruder;
wherein the extrusion die and the substrate are moved relative to each other to deposit the heat flowable adhesive material on a surface of the substrate;
wherein the heat flowable adhesive material has a thickness of about 0.2 mm or greater and about 0.6 mm or less;
b) blowing a gas at a temperature in a range of 40° C. to 150° C. at a pressure in a range of 1 to 8 bars (0.1 Mpa to 0.8 Mpa) onto a side of the heat flowable adhesive material remote from the substrate and between the extrusion die and the substrate to retain adhesive properties between the heat flowable adhesive material and the substrate;
wherein the distance between the extrusion die of the extruder and the surface of the substrate is from 0.5 mm to 2 cm to prevent interaction between them; and
wherein a direction of rotation of a screw of the extruder is reversible to stop extrusion.