The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 24, 1995
Filed:
May. 10, 1994
Alusuisse-Lonza Services Ltd., Zurich, CH;
Abstract
A flame resistant to nonflammable composite panel (86) is produced from a nonextrudable core mixture (24) with a pourable, nonflammable filling material and a binder, and on both sides cover strips flexibly bonded to the core. For a continuous production of the composite panel (86) in one operation, the core mixture (24) is poured onto an inrunning lower cover strip (48), in contact with a lower adhesive film (16) facing the core mixture (24), and a pile is formed there, extending over the entire width of the adhesive film, both [lacuna] continuously and uniformly drawn through a V gap (40) and compacted there for the first time and calibrated to thickness, an upper adhesive film (30), upwardly limiting the precompacted core mixture (24'), is fed in and brought into contact with a continuously fed cover strip (46) and the sandwich is pressed with further compaction, heated, cooled and cut to the final length of the composite panel (86). The apparatus for carrying out the process preferably comprises a double-belt press (43 ) for the concluding pressing and heating, for maintaining the temperature and for cooling.