专利名称：Highly filled, polymerisable compositions发明人：Geraldine A. Moorman,Michael D.
Taylor,Nicholas J. Walton
申请号：US07/882872申请日：19920514公开号：US05319014A公开日：19940607
摘要：A fluid, highly filled, curable composition comprising an organic liquid which ispolymerisable to form a solid polymer without the formation of elimination products andwhich is based on methyl methacrylate, 20 to 70% by volume of finely divided inorganicfiller particles, at least 1% by volume of these being in the form of particles having adiameter of at least 30 microns, with the proviso that when the maximum particle size ofsuch particles is 150 microns they are present at a concentration of between 20% and70% by volume and when particles are present having a size of greater than 150 micronthey are present at a concentration of at least 1% but preferably not exceeding 30% byvolume and from 0.05 to 5.0% by weight of the total composition, of an organophilic,surface modified clay having a particle surface area of at least 100 m.sup.2 /g.
The composition has viscosity characteristics which enable the composition to bereadily pumped into moulds using low pressure equipment but which at the same timeenables the large filler particles to be kept uniformly dispersed during the curing of amoulding.
申请人：IMPERIAL CHEMICAL INDUSTRIES PLC
代理机构：Cushman, Darby & Cushman
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