| abstract |
methods for making a tablet and a stabilized polymer, tablet, tablet-polymer blend, and, use of a tablet. the invention relates to a method for manufacturing a tablet, comprising the steps of (a) filling a starting material, which is in a solid form, into a first open cavity, which is formed by a first punch and a die, to obtain a second open cavity which is at least partially filled with the starting material, (b) closing the second open cavity by a second punch to obtain a closed first cavity, (c) compressing the starting material in a compression temperature below 37°C moving at least one of the first punch and the second punch to obtain a second closed cavity, which has a smaller volume than the first closed cavity, which results in the formation of an entrapped tablet of the starting material in the second closed cavity, (d) removing the entrapped tablet to obtain the tablet, which has a tablet temperature below 37°C directly after removal, where the starting material is solid at 37°c and 101 .32 kpa and consists of (i) 60 to 100% by weight of a first polymeric stabilizer selected from a list of various members, (ii) 0 to 40% by weight of a second polymeric stabilizer, which is zn, ca or mg, (iii) 0 to 34% by weight of a third polymeric stabilizer, which is zinc oxide, hydrotalcite or sodium benzoate, (iv) 0 to 20% by weight of an additional ingredient, which is different from the first polymeric stabilizer , the second polymeric stabilizer and the third polymeric stabilizer, wherein the sum of components (i), (ii), (iii) and (iv) is 100% by weight, and the tablet has a weight above 20 mg and below of 330 mg and a cross-sectional dimension above 3 mm and below 18 mm. further, a method for stabilizing a polymer, which is a polyolefin, a polystyrene or a mixture thereof, is described, which comprises dosing the tablet to the polymer. the tablet is useful for dust-free handling of its components in the manufacture of stabilized polymer. |