Man-made vitreous fibres have a melt viscosity of 10-70 poise at 1,400 DEG C and an Al2O3 content of 16 to 30% by weight (measured as oxides) and are used as biodegradable fibres. Novel fibres contain at least 6% by weight Na2O + K2O.
申请公布号
WO9614454(A3)
申请公布日期
1996.07.25
申请号
WO1995EP04395
申请日期
1995.11.08
申请人
ROCKWOOL INTERNATIONAL A/S;JENSEN, SOREN, LUND;CHRISTENSEN, VERMUND, RUST;GULDBERG, MARIANNE
