Global Patent Index - EP 1852197 A1

EP 1852197 A1 20071107 - Material for foundry core with aerogel sand comprising water swellable clay

Title (en)

Material for foundry core with aerogel sand comprising water swellable clay

Title (de)

Kernwerkstoff aus tonhaltigem Sand mit einem Gehalt an quellfähigen Schichtsilikaten enthaltendem Aerogelsand

Title (fr)

Matériau pour la confection de noyaux de fonderie à base d'aérogel de silice contenant une argile gonflante

Publication

EP 1852197 A1 20071107 (DE)

Application

EP 07106978 A 20070426

Priority

DE 102006021151 A 20060506

Abstract (en)

Core material, for sand mold casting containing aerogel sand, comprises clayey sand with a content of phyllosilicate (3-20%). An independent claim is included for a method for preparing core material comprising preparing a sol, mixing the sol with clayey sand, gelling the sol and drying the gel.

Abstract (de)

Gegenstand der Erfindung ist ein Kernwerkstoff aus tonhaltigem Sand enthaltendem Aerogelsand sowie ein Verfahren zu dessen Herstellung.

IPC 8 full level

B22C 1/16 (2006.01)

CPC (source: EP)

B22C 1/167 (2013.01)

Citation (search report)

  • [AD] DE 102004027382 A1 20060105 - DEUTSCH ZENTR LUFT & RAUMFAHRT [DE]
  • [AD] EP 1077097 A1 20010221 - DLR EV [DE], et al
  • [A] WO 2005046909 A1 20050526 - DEUTSCH ZENTR LUFT & RAUMFAHRT [DE], et al
  • [A] DE 10216464 A1 20031030 - DEUTSCH ZENTR LUFT & RAUMFAHRT [DE]
  • [A] US 6719835 B2 20040413 - BROWN RICHARD K [US]
  • [A] LORENZ RATKE ET AL: "Mechanical properties of aerogel composites for casting purposes { doi:10.1007/s10853-005-3152-8 }", JOURNAL OF MATERIALS SCIENCE, KLUWER ACADEMIC PUBLISHERS, BO, vol. 41, no. 4, 1 February 2006 (2006-02-01), pages 1019 - 1024, XP019211565, ISSN: 1573-4803
  • [A] BRUCK S ET AL: "RF-aerogels: A new binding material for foundry application {DOI 10.1023/A:1020709129165 }", J SOL GEL SCI TECHNOL; JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY JANUARY/MARCH 2003, vol. 26, no. 1-3, January 2003 (2003-01-01), pages 663 - 666, XP002442391
  • [A] BRÜCK, SABINE: "AeroSande : ein neuer Formstoff für Gießereianwendungen { http://darwin.bth.rwth-aachen.de/opus/volltexte/2003/708/ and 3 cover extra pages}", DOKTOR DES INGENIEURSWISSENSCHAFTTEN DISSERTATION, 14 November 2003 (2003-11-14), Rheinisch-Westfälischen Technischen Hochschule AACHEN, pages 1 - 149, XP002443154

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

Designated extension state (EPC)

AL BA HR MK YU

DOCDB simple family (publication)

EP 1852197 A1 20071107; EP 1852197 B1 20110921; AT E525153 T1 20111015; DE 102006021151 A1 20071108

DOCDB simple family (application)

EP 07106978 A 20070426; AT 07106978 T 20070426; DE 102006021151 A 20060506