Abstract:
Die Erfindung betrifft eine Druckfarbe oder Drucklack, enthaltend nicht strahlenhärtbares, vorzugsweise aromatisches, Polycarbonat, insbesondere als Bindemittel und haftungsgebende Komponente. Erfindungsgemäß ist vorgesehen, dass das Polycarbonat mit strahlenhärtbaren Monomeren vorliegt, insbesondere in diesen gelöst ist.
Abstract:
The present invention relates to a method of preparing a transparent polymer material, comprising the following steps: i) mineral nanoparticles, chosen from alkaline-earth metal carbonate, alkaline-earth metal sulphate, metal oxide, metalloid oxide and siloxane nanoparticles, are mixed with a composition A comprising at least one thermoplastic polymer in the molten state chosen from polycarbonate (PC), polystyrene (PS) and polymethyl methacrylate (PMMA), in order to obtain a masterbatch, the mixture resulting from step i) comprising at least 25% and at most 75% by weight of said mineral nanoparticles; and ii) the masterbatch obtained from i) is mixed with a composition B comprising a thermoplastic polycarbonate matrix (mPC) in the molten state, so as to obtain a transparent polymer material comprising at most 10% by weight of said mineral nanoparticles, preferably at most 5% by weight of said mineral nanoparticles.
Abstract:
La présente invention concerne un procédé de préparation d'un matériau polymère transparent comprenant les étapes suivantes : i.mélanger des nanoparticules minérales choisies parmi les nanoparticules de carbonates de métaux alcalino-terreux, de sulfates de métaux alcalino-terreux, d'oxydes métalliques, d'oxydes de métalloïdes et de siloxanes, et une composition A comprenant au moins un polymère thermoplastique à l'état fondu choisi parmi le polycarbonate (PC), le polystyrène (PS) et le polyméthacrylate de méthyle (PMMA), pour obtenir un mélange-maître, le mélange de l'étape i comprenant au moins 25 % et au plus 75 % en masse desdites nanoparticules minérales, et ii.mélanger le mélange-maître, obtenu à l'étape i, à une composition B comprenant une matrice de polycarbonate thermoplastique (mPC) à l'état fondu, pour obtenir un matériau polymère transparent comprenant auplus 10 % en masse desdites nanoparticules minérales, de préférence au plus 5 % en masse desdites nanoparticules minérales.
Abstract:
Two (or more) continuous porous polymeric matrices are employed, one of which is microporous, in which the polymers matrices interpenetrate the porous areas of the other. Thus, the invention is a composite membrane made from two polymers. Thus, a composite of strong interpenetrating matrices is formed which exhibits properties of both polymers. For example, one polymer can impart strength, the other polymer improved radiation resistance, or one polymer can impart strength and the other improved reflectance of light.
Abstract:
This invention relates to a process for preparing additive-modified blends of thermoplastic resins by combining a rubber-modified polycarbonate or aromatic polyester carbonate-containing concentrate resin with a let-down resin and/or regrind resin. With this process, it is possible for manufacturers of molded parts from thermoplastic resins to realize significant economies in raw material usage, working capital, transportation, storage and other costs as well as to realize increased flexibility in the supply of desired additive-modified blends.
Abstract:
Matériaux polymériques poreux à très haut taux de charges conductrices thermiques et/ou conductrices électriques. Procédé de préparation du matériau composite poreux comprenant au moins une phase polymérique formant liant et une ou plusieurs charges, ce procédé comprenant les étapes de mélangeage à chaud par voie fondue de la phase polymérique, des charges, et d'une phase polymérique sacrificielle, de façon à obtenir un mélange, de mise en forme du mélange, d'élimination de la phase polymérique sacrificielle.
Abstract:
A composition includes (a) a polypropylene or a polypropylene copolymer, (b) a polycarbonate polyol, and (c) optionally an organic peroxide. The polyol (b) is in the range of from about 0.01 wt. % to about 25 wt.% of the total weight of (a), (b) and (c). The method of making such a polymer composition, the method of using such a polymer composition, and a sheet or a fabricated article comprising such a polypropylene composition, are also provided.
Abstract:
A film is generally provided that includes from about 10 wt.% to about 90 wt.% of at least one polyaikylene carbonate and from about 10 wt.% to about 90 wt.% of at least one polyolefin. The film can be utilized as a packaging film (e.g., forming a wrap, pouch, or bag), or as in the construction of an absorbent article (e.g., as the outer cover/backsheet of the article). The film can be a multi-layered film including a core layer that constitutes from about 20% to about 90% of the thickness of the film and an outer layer positioned adjacent to the core layer, with the core layer including from about 10 wt.% to about 90 wt.% of at least one polyaikylene carbonate and from about 10 wt.% to about 90 wt.% of at least one polyolefin. The outer layer can contain about 50 wt.% or more of at least one polyolefin.