EP 3056296 A1 20160817 - FOUNDRY BINDER MIXTURE
Title (en)
FOUNDRY BINDER MIXTURE
Title (de)
BINDEMITTELGEMISCH FÜR FORMSAND
Title (fr)
MÉLANGE POUR LIANT POUR SABLE DE FONDERIE
Publication
Application
Priority
IT MI20150206 A 20150213
Abstract (en)
The present invention relates to synthetic resin-based systems, such as furan resins, to be used, in combination with suitable curing agents, as binders in mixtures with silica sand or other granular masses, for the production of foundry moulds and cores. In particular, one aim of the invention consists of the use of at least one alkyl ester of phosphorous acid and/or phosphoric acid and/or a salt thereof as an acidic catalyst for the manufacture of foundry binder mixtures, for example those of the 'no-bake' type. A further aim of the invention also consists of a mixture usable as a foundry binder, for example of the no-bake type, containing: a) monomeric furfuryl alcohol in quantities below 25% by weight of the mixture; b) formaldehyde in quantities no higher than 0.5% by weight of the mixture; c) at least one alkyl ester of phosphorous acid and/or phosphoric acid and/or a salt thereof.
IPC 8 full level
B22C 1/20 (2006.01); C08L 75/04 (2006.01)
CPC (source: EP)
B22C 1/20 (2013.01)
Citation (applicant)
- US 2343972 A 19440314 - HARVEY MORTIMER T
- US 4634723 A 19870106 - GARDZIELLA ARNO [DE], et al
- US 5459183 A 19951017 - TAYLOR THOMAS J [US], et al
- WO 2012080454 A1 20120621 - HUETTENES ALBERTUS [DE], et al
- "Manuel des sables a prise chimique", 1993, CENTRE TECHNIQUE DES INDUSTRIES DE LA FONDERIE, pages: B320 - 6,B320-1
- WALKER, J. FREDERIC: "Formaldehyde", PUBLISHING CORPORATION
Citation (search report)
- [XI] DE 102012201971 A1 20130814 - HUETTENES ALBERTUS [DE]
- [X] US 3227564 A 19660104 - SMEED STANDEN COLIN JOHN
- [X] US 5096983 A 19920317 - GERBER ARTHUR H [US]
- [A] US 4111253 A 19780905 - EPSTEIN DAVID, et al
- [AD] US 2343972 A 19440314 - HARVEY MORTIMER T
- [A] CN 103113547 B 20141105 - SUZHOU XINGYE MATERIALS TECHNOLOGY CO LTD
- [A] US 3734936 A 19730522 - BROWN L, et al
- [A] EP 0540837 A1 19930512 - RUETGERSWERKE AG [DE]
- [A] US 3779955 A 19731218 - WADE R
- [A] JP S57139443 A 19820828 - HITACHI LTD
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)
DOCDB simple family (application)
EP 16154978 A 20160210