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Calcium Carbonate Barrier Films And Uses Thereof

Calcium Carbonate Barrier Films And Uses Thereof

To illustrate the properties of a polyolefin film having a calcium carbonate additive, a comparative study of an extruded 3 layer MMW-HDPE film was compared to that of one with similar construction incorporating 20-30% by weight calcium carbonate in the total film construction. Calcium carbonate was contained in only the outer and core layers and not in the inner layer.CALCIUM CARBONATE BARRIER FILMS AND USES THEREOF,Jul 14, 2016· Comparing standard films without calcium carbonate at 3.0 mil gauge extruded at 1.6 blow up ratio against the films extruded at lower gauge (2.5 mils) using 25% by weight calcium carbonate extruded at similar blow up ratios, resulted in improvements in MVTR as presented below.Calcium carbonate barrier films and uses thereof by Omya,,A calcium carbonate masterbatch composition for preparing component b) of the barrier film of claim 1, comprising 50% by weight calcium carbonate of 1.4 pm median diameter particle size, a top cut

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