Treated inorganic particles for modifying polymer crystallinity
AssigneeThe Chemours Company Fc, LLC
InventorsPHILIPP MARTIN NIEDENZU, TIAN ZHOU, HERMAN LIM, CHARLES DAVID MUSICK
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Abstract
Described is a treated inorganic particle having an organic treatment layer, which can provide crystallization benefits to polymer resins. The treated inorganic particle has a mean particle size of about 0.1-10 μm, and the organic treatment layer is an alkali metal salt or alkaline earth metal salt of an acid; where the acid is an aromatic acid or organic diacid. The treated inorganic particles increase crystallization temperature, increase crystal formation rate, and/or decrease cooling time needed for the solidification of the polymer compared with pigmented resins using other inorganic particles.
Claims21
A treated inorganic particle comprising an inorganic particle having a surface and an organic treatment layer on the inorganic particle surface,
- where the treated inorganic particle has a mean particle size of about 0.1-10 μm and
- where the organic treatment layer is selected from alkali metal salt or alkaline earth metal salt of an acid;
- where the acid is an aromatic acid or organic diacid.
A polymer composition comprising a polymer and a treated inorganic particle,
- where the treated inorganic particle comprises an inorganic particle having a surface and an organic treatment layer on the inorganic particle surface, where the inorganic particle has a mean particle size of about 0.1-10 μm and where the organic treatment layer is selected from alkali metal salt or alkaline earth metal salt of an acid;
- where the acid is an aromatic acid or organic diacid;
- and
- where the polymer is polypropylene homopolymer or copolymer, polyethylene homopolymer or copolymer, polyester, or mixtures thereof.
Dependencies are inferred from the claim text.