Methods to formulate neutral organic compounds with polymer nanoparticles
AssigneeVive Crop Protection Inc.
InventorsFugang Li, Hung Pham, Darren J. Anderson
Life of this patent
Estimating the term…
Abstract
A composition including a collapsed, polymer nanoparticle and at least one organic, neutral compound associated with the nanoparticle, wherein the nanoparticle is less than 100 nm in diameter, and the polymer comprises a water-soluble polyelectrolyte, has a molecular weight of at least about 100,000 Dalton and is cross-linked. The organic, neutral compound is selected from the group consisting of dyes, pigments, colorants, oils, UV-light absorbing molecules, fragrances, flavoring molecules, preservatives, electro-conductive compounds, thermoplastic compounds, adhesion promoters, penetration enhancers, anti-corrosive agents, and combinations thereof.
Claims25
A composition comprising a polymer nanoparticle and at least one organic, neutral, non-ionic compound associated with the polymer nanoparticle,
- wherein the polymer nanoparticle is less than 100 nm in diameter, and
- the polymer nanoparticle comprises:
- multiple, cross-linked, collapsed, water-soluble polyelectrolytes, each of which comprises a random copolymer with hydrophilic and hydrophobic regions, and has a molecular weight of at least about 100,000 Dalton;
- and
- wherein the organic, neutral, non-ionic compound is selected from the group consisting of dyes, pigments, colorants, oils, UV-light absorbing molecules, fragrances, flavoring molecules, preservatives, electro-conductive compounds, thermoplastic compounds, adhesion promoters, penetration enhancers, anti-corrosive agents, and combinations thereof.
(canceled)
(canceled)
(canceled)
23-24. (canceled)
A method to associate an organic, neutral compound with polymer nanoparticles comprising the steps of:
- (a) dissolving polymer nanoparticles and an organic, neutral compound in a suitable solvent;
- and
- (b) removing the solvent,
- wherein the organic, neutral compound is selected from the group consisting of dyes, pigments, colorants, oils, UV-light absorbing molecules, fragrances, flavoring molecules, preservatives, electro-conductive compounds, thermoplastic compounds, adhesion promoters, penetration enhancers, anti-corrosive agents, and combinations thereof,
- wherein the polymer nanoparticles are less than 100 nm in diameter, and the polymer nanoparticles comprise multiple, cross-linked, collapsed, a water soluble polyelectrolyte;
- each of which comprises a random copolymer with hydrophilic and hydrophobic regions, and has a molecular weight of at least about 100,000 Dalton.
26-58. (canceled)
Dependencies are inferred from the claim text.