Carbon black modified polyesters
AssigneeInternational Business Machines Corporation
InventorsScott B. King, Brandon M. Kobilka, Joseph Kuczynski, Jason T. Wertz
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Abstract
Embodiments of the disclosure generally provide compositions and methods involving the production of polyester composite materials that contain covalently bonded carbon black particles. The carbon black particles have surface functional groups that enable the grafting of a polyester, and/or initiate the ring opening of a monomer to create a polyester grown from the surface of the particle.
Claims19
A method of producing a polymer composite comprising covalently bonded carbon black particles, comprising:
- forming a molten polylactic acid in a polymer extrusion apparatus at a first temperature and a first time;
- reacting the polylactic acid with carbon black particles in the presence of a catalyst at a second temperature and a second time to form an extrudate;
- and
- isolating the extrudate.
A method of producing a polymer composite comprising covalently bonded carbon black particles, comprising:
- forming a molten polylactic acid in a polymer extrusion apparatus at a first temperature and a first time;
- reacting the polylactic acid with carbon black particles in the presence of a catalyst at a second temperature and a second time to form an extrudate, the carbon black particles comprising surface hydroxyl groups, wherein the surface hydroxyl groups form a reaction product with the polylactic acid;
- and
- isolating the extrudate.
A method of producing a polymer composite comprising covalently bonded carbon black particles, comprising:
- forming a molten polylactic acid in a polymer extrusion apparatus at a first temperature and a first time;
- reacting the polylactic acid with carbon black particles in the presence of a catalyst at a second temperature and a second time to form an extrudate, the carbon black particles comprising surface hydroxyl groups, wherein the surface hydroxyl groups form an esterification reaction product with the polylactic acid;
- and
- isolating the extrudate.
Dependencies are inferred from the claim text.