EP 4168243 A1 20230426 - STIFFENED PART FORMED FROM A THERMOSET COMPOSITE MATERIAL WITH A BOXED STRUCTURE AND MANUFACTURING METHOD
Title (en)
STIFFENED PART FORMED FROM A THERMOSET COMPOSITE MATERIAL WITH A BOXED STRUCTURE AND MANUFACTURING METHOD
Title (de)
VERSTEIFTES TEIL AUS EINEM DUROPLASTISCHEN VERBUNDWERKSTOFF MIT SCHACHTELSTRUKTUR UND HERSTELLUNGSVERFAHREN
Title (fr)
PIECE RAIDIE EN MATERIAU COMPOSITE THERMODURCI A STRUCTURE CAISSONNEE ET PROCEDE DE FABRICATION
Publication
Application
Priority
- FR 2007522 A 20200717
- FR 2021051340 W 20210716
Abstract (en)
[origin: WO2022013513A1] The invention relates to a stiffened part formed from at least two members of thermoset composite material including at least one body of a first structure and optionally a second structure, and the manufacturing method thereof, which comprises: for each body of the first structure, forming a fibre preform of the body and impregnating said body with a thermosetting resin or forming a pre-impregnated fibre preform, whereby a body formed from an uncured thermosetting composite material supported by a mandrel is obtained; optionally partially or fully polymerising at least one body supported by a mandrel; if the stiffened part comprises a second structure, providing the second structure formed from an uncured, partially uncured or fully uncured thermosetting composite material; if there is at least one member formed from a fully cured thermosetting composite material, depositing a layer of uncured thermosetting adhesive on an area where the member makes contact with another member of the part; joining the members forming the part, each member being juxtaposed with, or stacked upon, at least one other member; fully curing the assembly by heat treatment; removing the mandrel from each fully cured body.
IPC 8 full level
B29C 70/32 (2006.01); B29C 33/48 (2006.01); B29C 33/50 (2006.01); B29C 65/00 (2006.01); B29C 65/48 (2006.01); B29C 65/50 (2006.01); B29C 70/02 (2006.01); B29C 70/48 (2006.01); B29C 70/68 (2006.01); B29C 70/70 (2006.01); B29C 70/74 (2006.01); B29C 70/76 (2006.01); B29C 70/86 (2006.01); B29D 24/00 (2006.01); B29D 99/00 (2010.01); H01Q 1/28 (2006.01); H01Q 15/14 (2006.01); H01Q 15/16 (2006.01); H01Q 15/20 (2006.01)
CPC (source: EP US)
B29C 33/48 (2013.01 - EP); B29C 33/505 (2013.01 - EP); B29C 70/026 (2013.01 - EP US); B29C 70/32 (2013.01 - EP US); B29C 70/682 (2013.01 - EP US); B29C 70/685 (2013.01 - EP); B29C 70/70 (2013.01 - EP); B29C 70/74 (2013.01 - EP); B29C 70/763 (2013.01 - EP); B29C 70/86 (2013.01 - EP US); B29D 24/002 (2013.01 - EP); B29D 24/005 (2013.01 - EP); B29D 99/0014 (2013.01 - EP); H01Q 1/288 (2013.01 - EP); H01Q 15/142 (2013.01 - EP US); B29C 65/4835 (2013.01 - EP); B29C 65/5057 (2013.01 - EP); B29C 66/112 (2013.01 - EP); B29C 66/1122 (2013.01 - EP); B29C 66/114 (2013.01 - EP); B29C 66/1142 (2013.01 - EP); B29C 66/131 (2013.01 - EP); B29C 66/474 (2013.01 - EP); B29C 66/524 (2013.01 - EP); B29C 66/532 (2013.01 - EP); B29C 66/63 (2013.01 - EP); B29C 66/71 (2013.01 - EP); B29C 66/721 (2013.01 - EP); B29C 66/7212 (2013.01 - EP); B29C 66/73751 (2013.01 - EP); B29C 66/73753 (2013.01 - EP); B29C 66/73754 (2013.01 - EP); B29C 66/73755 (2013.01 - EP); B29C 66/73756 (2013.01 - EP); B29C 66/73941 (2013.01 - EP); B29C 70/48 (2013.01 - EP); B29K 2101/10 (2013.01 - US); B29K 2105/0809 (2013.01 - US); B29L 2031/3456 (2013.01 - EP US); H01Q 1/288 (2013.01 - US)
C-Set (source: EP)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
FR 3112506 A1 20220121; FR 3112506 B1 20230512; EP 4168243 A1 20230426; US 2023264440 A1 20230824; WO 2022013513 A1 20220120
DOCDB simple family (application)
FR 2007522 A 20200717; EP 21758400 A 20210716; FR 2021051340 W 20210716; US 202118005235 A 20210716