Abstract: The present invention provides a composition including a polymer nanoparticle and at least one agricultural active compound incorporated with the nanoparticle, wherein the nanoparticle are less than 100 nm in diameter, and the polymer includes a polyelectrolyte.
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.
Type:
Application
Filed:
March 24, 2011
Publication date:
February 7, 2013
Applicant:
VIVE CROP PROTECTION INC.
Inventors:
Fugang Li, Hung Pham, Darren J. Anderson
Abstract: A composite nanoparticle comprising a nanoparticle confined within a cross-linked collapsed polyelectrolyte polymer wherein the nanoparticle comprises a charged organic ion.
Type:
Grant
Filed:
June 17, 2011
Date of Patent:
October 9, 2012
Assignee:
Vive Crop Protection, Inc.
Inventors:
Cynthia M. Goh, Jose Amado Dinglasan, Jane B. Goh, Richard Loo, Darren Anderson
Abstract: A method for producing a composite nanoparticle, including the steps of: changing the conformation of a dissolved polyelectrolyte polymer from a first extended conformation to a more compact conformation by changing a solution condition so that at least a portion of the polyelectrolyte polymer is associated with a precursor moiety to form a composite precursor moiety with a mean diameter in the range between about 1 nm and about 100 nm; and cross-linking the polyelectrolyte polymer of the composite precursor moiety to form a composite nanoparticle.
Type:
Grant
Filed:
June 17, 2011
Date of Patent:
September 4, 2012
Assignee:
Vive Crop Protection, Inc.
Inventors:
Cynthia M. Goh, Jose Amado Dinglasan, Jane B. Goh, Richard Loo, Darren Anderson