EP 0387682 A3 19920408 - BINDER ON BASE OF AQUEOUS ALCALIMETALSILICATE SOLUTIONS AND ITS UTILIZATION
Title (en)
BINDER ON BASE OF AQUEOUS ALCALIMETALSILICATE SOLUTIONS AND ITS UTILIZATION
Publication
Application
Priority
DE 3908560 A 19890316
Abstract (en)
[origin: EP0387682A2] The invention relates to binders based on aqueous alkali metal silicate solutions having an SiO2 content of 22 to 33% by weight and a content of glycerol and polyglycerols, which contain: a) 70 to 99% by weight of an aqueous alkali metal silicate solution having an SiO2 content of 23 to 37% by weight and a molar ratio SiO2 : Me2O of (2.0 to 3.3) : 1, Me denoting sodium and/or potassium and/or lithium, and b) 1 to 30% by weight of a mixture, dissolved in the alkali metal silicate solution, of glycerol and polyglycerols having an OH number in the range from 1560 to 1200, containing, based in each case on the mixture: 70 to 15% by weight of glycerol, 40 to 6% by weight of diglycerol, 5 to 20% by weight of triglycerol, 3 to 13% by weight of tetraglycerol and 12 to 30% by weight of higher polyglycerols, the proportions of the stated individual components of the mixture summing to 100% by weight in each case.
IPC 1-7
IPC 8 full level
B22C 1/16 (2006.01); B22C 1/18 (2006.01); B22C 1/20 (2006.01); B22C 1/24 (2006.01)
CPC (source: EP)
B22C 1/188 (2013.01); B22C 1/20 (2013.01)
Citation (search report)
- [A] EP 0066788 A1 19821215 - HENKEL KGAA [DE]
- [AD] BE 555362 A
- [AD] DE 2641249 A1 19770331 - FOSECO INT, et al
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
EP 0387682 A2 19900919; EP 0387682 A3 19920408; EP 0387682 B1 19951011; AT E128891 T1 19951015; DE 3908560 A1 19900920; DE 59009755 D1 19951116
DOCDB simple family (application)
EP 90104330 A 19900307; AT 90104330 T 19900307; DE 3908560 A 19890316; DE 59009755 T 19900307