Methods for improving nanocellulose dispersion in elastomeric compounds, and compositions containing dispersed nanocellulose in elastomer compounds
AssigneesBirla Carbon U.S.A., Inc., GranBio Intellectual Property Holdings, LLC
InventorsCharles R. Herd, Zachary A. Combs, Lewis B. Tunnicliffe, Kimberly Nelson, Shaobo Pan
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Abstract
Nanocellulose dispersion compositions containing a partitioning agent and a nanocellulose, and methods of making the nanocellulose dispersion compositions, are disclosed. These compositions can promote improved dispersibility of the nanocellulose fibrils and nanocellulose crystals in polymer matrices, such as in elastomer formulations for use in tire production.
Claims30
A polymer composition comprising:
- (I) a polymer;
- (II) a nanocellulose dispersion composition (NDC) comprising:
- (i) a partitioning agent comprising a carbon black filler and at least one of an elastomer latex and/or a wax;
- and
- (ii) a nanocellulose;
- and
- (III) a carbon black additive.
A process for partitioning a nanocellulose in an aqueous system for improved dispersibility in polymers, the process comprising:
- (a) combining an aqueous dispersion of the nanocellulose with a partitioning agent to form a mixture, wherein the partitioning agent comprises a carbon black filler and at least one of an elastomer latex and/or a wax;
- and
- (b) drying the mixture to form a nanocellulose dispersion composition (NDC).
A nanocellulose dispersion composition (NDC) comprising:
- (i) a partitioning agent comprising a carbon black filler and at least one of an elastomer latex and/or a wax;
- and
- (ii) a nanocellulose.
Dependencies are inferred from the claim text.