81results about How to "Increase filler content" patented technology

The present invention relates to dental composites comprising at least one nanoparticulate mixed oxide (a) of SiO2 with X-ray-opaque metal oxides of one or more elements selected from the group consisting of Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu which has been prepared by flame spraying.

The present invention relates to elastomeric compounds having a high filler content additionally containg 1 to 400% by weight of resin of microsilica as a modifier to improve the processability. Thereafter, the invention relates to a method for production of elastomeric compounds having a high filler content, wherein microsilica is added to the elastomeric compounds in an amount of 1 to 400% by weight of resin as a modifier to improve processability.

A continuous filler treatment process has been developed to enhance the fixation of anionic latex on filler in a short time. In this process anionic polymer dispersions (latex) are added to common papermaking filler slurries at ambient temperature and then mixed with water of temperature higher than the glass transition temperature (Tg) of the latex used. To efficiently fix the latex the temperature of the filler / latex mixture must be 30-60° C. higher than the Tg of the latex used. The chemical composition of the resin and the type of surfactant used during the emulsion polymerisation process of the polymer latex dispersions are important factors for efficiently fixing the latex onto the filler by adding hot water and improving the properties of paper made with the treated filler. The enhanced fixation of anionic latex onto filler using hot water is done in mixing vessels that can control shear and mixing time. The anionic latexes applied by this process are totally and irreversibly fixed or bound onto the filler particles and the aggregated filler slurry is stable over time. The latex-treated filler slurry can be added to papermaking furnishes at any point prior to the headbox of the paper machine or stored for later use. It can be added to wood-free or wood-containing furnishes commonly used for making fine papers, mechanical pulp papers, and multi-ply paperboards. The latex-treated filler slurry improves filler retention, only slightly reduces sheet strength and improves sizing performance. Furthermore, latex-treated calcium carbonate filler, such as precipitated calcium carbonate (PCC), is more acid-resistant and, when used in manufacturing mechanical pulp paper under neutral conditions, less acid is needed to control the pH.