EP 3768482 A2 20210127 - WEB OF IMPREGNATED FIBROUS MATERIAL, PRODUCTION METHOD THEREOF AND USE OF SAME FOR THE PRODUCTION OF THREE-DIMENSIONAL COMPOSITE PARTS
Title (en)
WEB OF IMPREGNATED FIBROUS MATERIAL, PRODUCTION METHOD THEREOF AND USE OF SAME FOR THE PRODUCTION OF THREE-DIMENSIONAL COMPOSITE PARTS
Title (de)
BAHN AUS IMPRÄGNIERTEM FASERMATERIAL, VERFAHREN ZU IHRER HERSTELLUNG UND IHRE VERWENDUNG ZUR HERSTELLUNG VON DREIDIMENSIONALEN VERBUNDTEILEN
Title (fr)
NAPPE DE MATERIAU FIBREUX IMPREGNE, SON PROCEDE DE FABRICATION ET SON UTILISATION POUR LA FABRICATION DE PIECES COMPOSITES EN TROIS DIMENSIONS
Publication
Application
Priority
- FR 1852552 A 20180323
- FR 2019050621 W 20190319
Abstract (en)
[origin: WO2019180371A2] The present invention relates to a web of impregnated fibrous material(s) comprising N individual tapes of fibrous material(s) stacked and/or joined in relation to one another, in which said N tapes adhere to each other and can overlap at least partially. According to the invention, the tapes of fibrous material(s) comprise continuous fibres impregnated with at least one thermoplastic polymer, and optionally a chain extender. The web is characterised in that it has a surface, in cross-section perpendicular to the axis of the fibres, S, that is substantially equal to the sum of the surface, in cross-section perpendicular to the axis of the fibres, of each initial individual tape, denoted Sth, Sth being equal to N x l x Ep, wherein l represents the average width of a tape and Ep represents the average thickness of a tape, N being between 2 and 2000, and the average thickness of each individual tape being less than or equal to 150μm, preferably less than or equal to 100μm, in particular between 10 and 100μm.
IPC 8 full level
B29B 15/10 (2006.01)
CPC (source: EP KR US)
B29B 15/12 (2013.01 - EP KR US); B29C 70/06 (2013.01 - KR); B29C 70/382 (2013.01 - KR); B29C 70/504 (2013.01 - KR); B32B 3/263 (2013.01 - US); B32B 5/145 (2013.01 - US); B32B 5/26 (2013.01 - US); C08J 5/243 (2021.05 - US); B29K 2067/003 (2013.01 - KR); B29K 2067/006 (2013.01 - KR); B29K 2077/00 (2013.01 - KR); B29K 2101/12 (2013.01 - KR US); B29K 2105/0872 (2013.01 - KR US); B29K 2105/124 (2013.01 - KR); B29K 2307/04 (2013.01 - KR); B29K 2507/04 (2013.01 - US); B32B 2260/023 (2013.01 - US); B32B 2260/046 (2013.01 - US); B32B 2262/106 (2013.01 - US); B32B 2305/076 (2013.01 - US); C08J 2377/00 (2013.01 - US); Y10T 428/24967 (2015.01 - US)
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
DOCDB simple family (publication)
WO 2019180371 A2 20190926; WO 2019180371 A3 20191205; CN 111918756 A 20201110; EP 3768482 A2 20210127; FR 3079163 A1 20190927; FR 3079163 B1 20211015; JP 2021518283 A 20210802; JP 2024069200 A 20240521; KR 20200133765 A 20201130; US 11571839 B2 20230207; US 2021086403 A1 20210325
DOCDB simple family (application)
FR 2019050621 W 20190319; CN 201980021493 A 20190319; EP 19717190 A 20190319; FR 1852552 A 20180323; JP 2020549763 A 20190319; JP 2024019236 A 20240213; KR 20207029728 A 20190319; US 201917040307 A 20190319