Uses of styrenic polymers derived through depolymerized polystyrene
AssigneeGreenMantra Recycling Technologies Ltd.
InventorsBenjamin Scott, Domenic Di Mondo
Life of this patent
Estimating the term…
Abstract
A latex and solution with UV-active monomers created using styrenic polymers created via the depolymerization of a polystyrene feedstock. In some embodiments the polystyrene feedstock contains recycle polystyrene. In some embodiments, the styrenic polymers contain olefins. In some embodiments, the latex and solution with UV-active monomers are used in ink formulations. In some embodiments, latex and solution UV-active monomers can replace styrenated acrylics within flexo and/or gravure ink formulations. Other applications of the latex and solution with UV-active monomers can include, but are not limited to, coatings, paints, adhesives. Additional applications of the latex can include but are not limited to immunoassays.
Claims16
A water-based ink comprising:
- a pigment;
- an additive;
- a latex comprising a styrenic polymer created via depolymerization of a recycled polystyrene feedstock via a depolymerization process;
- and
- an UV-active monomer,
- wherein said styrenic polymer has a weight average molecular weight between 50000-150000 amu,
- wherein the particle size of said latex is greater than 1 micrometer,
- wherein said depolymerization process utilizes a catalyst, and
- wherein said styrenic polymer comprises:
- greater than 50 ppm of zinc;
- greater than 20 ppm titanium;
- and
- greater than 20 ppm iron.
Dependencies are inferred from the claim text.