Patent ID: 9546514
Date: 2017-01-17
CPC Classifications: B29C,B32B,C09K,E06B

Claim:
1. A cast in place method of producing a fire resistant laminated glazing, said glazing comprising a silicate based interlayer which interlayer comprises up to 15% by weight of glycerol or ethylene glycol, and with a water content of between 35 and 43% by weight and which is disposed between two opposed glass panes, said method comprising the steps of: i) obtaining a silicate based interlayer by preparing an aqueous silicate mixture, said mixture including a total water content of between 35% and 43% by weight, by mixing together: ii) degassing the mixture; iii) pouring the mixture-into a cavity formed from the two opposed glass panes; and iv) allowing the mixture to cure upon standing and without drying to form the silicate based interlayer, with improved fire resistance properties and a reduced tendency to slump.