| 摘要 |
When mat PMMA is glued with conventional polymerization glues very shiny glue joints are obtained since the cured polymerization glues have a shiny surface, thereby emphasizing exactly those areas which the viewer of glued products is not supposed to detect. The aim of the invention is therefore to provide a glue which is mat after curing. The inventive glue is based on a polymerization glue, preferably a glue on a (meth)acrylate basis. Two different kinds of silicic acid are added to the polymerization glue as a disperse powder, namely a silicic acid power having an average particle size of from 1mum to 10 mum (matting agent) and a silicic acid powder having an average particle size of more than 10 mum to 200 mum (structuring agent).
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