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US 7,888,418 B2Granted
Block copolymer modified vegetable oil and polymer blends and methods of making same
AssigneesToyota Motor Engineering & Manufacturing North America, Inc., University of Minnesota
InventorsEric John Connell, Marc Andrew Hillmyer, Kwanho Chang
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Abstract
Embodiments of a polymer and vegetable oil based composition comprise a polylactide homopolymer, a vegetable oil dispersed inside the polylactide homopolymer, and a block copolymer configured to aid the dispersion of the vegetable oil inside the polylactide homopolymer.
Claims18
A polymer and vegetable oil based composition comprising:
- a polylactide homopolymer;
- a vegetable oil dispersed inside the polylactide homopolymer;
- and
- a block copolymer configured to aid the dispersion of the vegetable oil inside the polylactide homopolymer, wherein the block copolymer is a polyisoprene-polylactide block copolymer comprising less than about 70% by volume polylactide.
1 more element
A polymer and vegetable oil based composition comprising:
- a vegetable oil;
- a polylactide homopolymer, wherein at least a portion of the polylactide is dispersed inside the vegetable oil;
- and
- a polyisoprene-polylactide block copolymer comprising less than about 70% by volume polylactide, wherein the block copolymer is configured to stabilize the dispersion of the polylactide inside the vegetable oil.
1 more element
A method of inverting the phases in a polymer and vegetable oil based emulsion comprising:
- providing a polylactide homopolymer composition, a vegetable oil composition, and a block copolymer in a mixing vessel;
- mixing the polylactide homopolymer, the vegetable oil, and a polyisoprene-polylactide block copolymer to produce a first emulsion comprising vegetable oil dispersed within the polylactide homopolymer;
- and
- reducing the volume fraction of the polylactide inside the polyisoprene-polylactide block copolymer below about 70% to produce a second emulsion, wherein the polylactide homopolymer is dispersed within the vegetable oil.
1 more element
Dependencies are inferred from the claim text.