Plastic and nonmetallic article shaping or treating: processes – With printing or coating of workpiece – Coating or impregnating workpiece before molding or shaping...
Reexamination Certificate
2006-06-27
2006-06-27
Staicovici, Stefan (Department: 1732)
Plastic and nonmetallic article shaping or treating: processes
With printing or coating of workpiece
Coating or impregnating workpiece before molding or shaping...
C264S257000, C264S258000, C264S314000, C264S317000, C264S324000, C264S510000, C264S512000
Reexamination Certificate
active
07067080
ABSTRACT:
A process for the production of composite tubing, particularly for air conditioning, from a structure of mineral or organic fibers, natural or artificial. The structure of fibers is impregnated with a suitable resin, and after shaping in or on a mold, the temperature and possibly the pressure is raised for polymerization of the resin, a sealing of the wall of the shaped piece being carried out in the course of this process. The structure of fibers is constituted by a single ply of a unit weight of at least about 400 g/m2, which ply is impregnated with resin at an impregnation quantity of at least 40%, then there is emplaced on one of the surfaces of the single ply a coating of a sealing agent. The polymerization is carried out while the single ply and its coating have the desired shape in or on the mold.
REFERENCES:
patent: 4173670 (1979-11-01), VanAuken
patent: 4923541 (1990-05-01), Burger
patent: 6555243 (2003-04-01), Flepp et al.
patent: 2002/0102373 (2002-08-01), DeMeyer
patent: 10-337812 (1998-12-01), None
Eftymiades Georges
Lazorthes Benjamin
Airbus France
Staicovici Stefan
Young & Thompson
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