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EP0084986A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Alumina-based ceramic composition for the preparation of a substrate and process for the preparation of said substrate

Assignee: C I C E SA
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Filing: 1983-01-04
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Granted: —
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Expires: 2003-01-04
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Abstract

Abstract Translated from French Composition céramique comportant notamment en cru de l'alumine, un agent défloculant et au moins un liant organique. Selon l'invention, elle est constituée, en extrait sec de 95 à 99% en poids d'un mélange d'une première alumine de granulométrie inférieure à 2 microns, apte à fritter à une température inférieure à 1600°C pour une densité en crue inférieure à 2,3 et d'une seconde alumine de granulométrie inférieure à 3 microns, apte à fritter à une température inférieure à 1650°C pour une densité en crue inférieure à 2,4 et de 1 à 5% en poids de produits organiques comportant au moins un défloculant et au moins un liant choisi parmi les polyacrylates d'alkyles et leurs copolymères. Ceramic composition comprising in particular alumina raw, a deflocculating agent and at least one organic binder. According to the invention, it consists of a dry extract of 95 to 99% by weight of a mixture of a first alumina with a particle size of less than 2 microns, capable of sintering at a temperature below 1600 ° C for a density of flood less than 2.3 and a second alumina of particle size less than 3 microns, capable of sintering at a temperature below 1650 ° C for a flood density of less than 2.4 and from 1 to 5% by weight of products organic comprising at least one deflocculant and at least one binder chosen from polyalkyl acrylates and their copolymers.

Inventors

  • 👤 Yves Gougouyan
  • 👤 Philippe Basseville

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-09 02:01
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/622; C04B35/626; C04B35/63; C04B35/632; C04B35/634; C04B35/63404; C04B35/63416; C04B35/01; C04B35/10; C04B35/111; C04B35/63424; H; H10; H10W; H10W70/00; H10W70/60; H10W70/67; H10W70/69; H10W70/692; H10W99/00

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

FR1388155A Cited
US3516840A Cited
GB1366119A Cited
US4045412A Cited
FR2394506A1 Cited

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