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:
May. 30, 2000
Filed:
Jan. 12, 1999
Applicant:
Inventors:
Franck Vandekerckhove, Meulebeke, BE;
Alain Bouilloux, Bernay, FR;
Regis Jacquemet, Evreux, FR;
Bruno Echalier, Paris, FR;
Assignee:
Elf Atochem S.A., Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; B32B / ;
U.S. Cl.
CPC ...
4284761 ; 428414 ; 4284761 ; 427155 ; 427365 ; 4274123 ; 4274125 ; 264 79 ; 264130 ; 2641731 ; 26417314 ; 525 66 ; 525179 ; 525184 ; 525183 ;
Abstract
The present invention provides a sheet molding compound consisting in a sandwich structure comprising a central layer of reinforced uncured heat hardenable sheet molding compound; and two outer layers of a release film having low permeability to hydrocarbons comprising at least one layer (i) of a polyamide/polyolefin alloy having a polyamide matrix and at least one layer (ii) of a polyolefin.