C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
400/5041, 400/70
C08L 57/00 (2006.01) C08F 2/44 (2006.01) C08L 101/00 (2006.01)
Patent
CA 2012949
A fluid, filled, curable composition comprising an organic liquid which is polymerisable to form a solid polymer without the formation of any elimination products and from 20 to 70% by volume of alumina trihydrate filler characterised in that filler has a median particle size of between 5 and 30 microns, and preferably between 6 and 20 microns, and has an average aspect ratio of less than 2.5:1, preferably less than 2.0:1, and desirably less than 1.8:1. The composition when cured provides shaped articles having improved mechanical properties and when used as a dispersion of low viscosity reduces the tendency for the composition to show colour variations through the thickness of the sheet as exhibited using alumina trihydrate fillers of high aspect ratio.
Gowan Intellectual Property
Imperial Chemical Industries Plc
Lucite International Uk Limited
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