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US 2014/0155505 A1Published application
Process for physically foaming a masterbatch
AssigneeSabic Basic Industries Corporation
InventorsPratip Sengupta, Roelof Franciscus Gerardus Maria de Vos, Johan Maria KRIST
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Abstract
The invention is directed to a masterbatch comprising a nucleating organic compound which, on changing to the solid phase, forms crystals and which in its melt phase is soluble in the molten polyethylene and polyethylene. The ingredients of this masterbatch are applied as a nucleating agent masterbatch during the production of polyethylene foam.
Claims11
A process comprising
- physical foaming a masterbatch, wherein the physical foaming comprises:
- a) a nucleating organic compound which, on changing to the solid phase, forms crystals and which in its melt phase is soluble in the molten polyethylene;
- and
- b) polyethylene;
- wherein the amount of polyethylene in the masterbatch ranges between 50.0% by weight and 99.9% by weight and the amount of the organic compound ranges between 0.1% by weight and 50.0% by weight.
2 more elements
A process comprising:
- physical foaming a masterbatch, wherein the physical foaming comprises:
- a) a nucleating organic compound which, on changing to the solid phase, forms crystals and which in its melt phase is soluble in the molten polyethylene;
- and
- b) polyethylene;
- wherein the masterbatch comprises a nucleating organic compound which, on changing to the solid phase, forms crystals and which in its melt phase is soluble in the molten polyethylene;
- and
- wherein a mixture of ethylene bis-stearamide, sodium bicarbonate, and citric acid.
4 more elements
Dependencies are inferred from the claim text.