Global Patent Index - EP 4396153 A1

EP 4396153 A1 20240710 - METHOD FOR PROTECTING A CARBON-CARBON COMPOSITE MATERIAL PART FROM OXIDATION

Title (en)

METHOD FOR PROTECTING A CARBON-CARBON COMPOSITE MATERIAL PART FROM OXIDATION

Title (de)

VERFAHREN ZUM SCHUTZ EINES KOHLENSTOFF-KOHLENSTOFF-VERBUNDSTOFFTEILS VOR OXIDATION

Title (fr)

PROCEDE DE PROTECTION CONTRE L'OXYDATION D'UNE PIECE EN MATERIAU COMPOSITE CARBONE/CARBONE

Publication

EP 4396153 A1 20240710 (FR)

Application

EP 22773288 A 20220829

Priority

  • FR 2109171 A 20210902
  • FR 2022051621 W 20220829

Abstract (en)

[origin: WO2023031548A1] The invention relates to a method for protecting a carbon-carbon composite material part from oxidation, the method comprising the steps of: - applying (10) an impregnation composition comprising at least one metal phosphate to at least one portion of the outer surface of the part; - depositing (30), by means of a dry deposition process, a solid composition of an oxidation-resistant glass on at least one portion of the outer surface of the part, once the impregnation composition has been applied; and - conducting an impregnation heat treatment (40) in order to soften or melt the solid composition deposited by means of a dry deposition process, to allow the internal porosity of the part to be impregnated with the thus-softened or thus-melted composition, and to form an oxidation-resistant glass in the internal porosity of the part.

IPC 8 full level

C04B 41/00 (2006.01); C03C 3/19 (2006.01); C03C 8/08 (2006.01); C04B 41/52 (2006.01); C04B 41/89 (2006.01); F16D 65/02 (2006.01); F16D 65/12 (2006.01); F16D 69/02 (2006.01); C04B 111/00 (2006.01)

CPC (source: EP)

C03C 3/19 (2013.01); C03C 8/08 (2013.01); C04B 41/009 (2013.01); C04B 41/52 (2013.01); C04B 41/89 (2013.01); F16D 65/02 (2013.01); F16D 65/126 (2013.01); C04B 2111/00362 (2013.01); C04B 2111/00405 (2013.01); C04B 2111/00982 (2013.01); F16D 69/023 (2013.01); F16D 2200/0047 (2013.01)

C-Set (source: EP)

  1. C04B 41/009 + C04B 35/83
  2. C04B 41/52 + C04B 41/0072 + C04B 41/4545 + C04B 41/4568 + C04B 41/5022
  3. C04B 41/52 + C04B 41/0072 + C04B 41/4523 + C04B 41/5022 + C04B 41/522
  4. C04B 41/52 + C04B 41/4535 + C04B 41/5015

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 3126415 A1 20230303; FR 3126415 B1 20240105; CN 118076572 A 20240524; EP 4396153 A1 20240710; WO 2023031548 A1 20230309

DOCDB simple family (application)

FR 2109171 A 20210902; CN 202280065284 A 20220829; EP 22773288 A 20220829; FR 2022051621 W 20220829