| Patent application number | Description | Published |
|---|
| 20090012212 | Process for preparing polymer emulsions and polymers formed therefrom - A process for preparing multi-stage emulsion polymers is provided. The process is capable of producing multi-stage emulsion polymers having low dry-bulk density. These polymers are useful in coating compositions such as paints and paper coatings. | 01-08-2009 |
| 20090162558 | Core-shell polymers suitable for use in organic media - A composition including a core-shell polymeric particle, the core including, when dry, at least one void and the shell including, as polymerized units, from 18% to 50%, by weight based on the weight of the shell, monomer selected from the group consisting of acrylonitrile, methacrylonitrile, acrylamide, methacrylamide, and mixtures thereof. is provided. Also provided is a composition including an organic medium and a core-shell polymeric particle, the core including, when dry, at least one void and the shell having a calculated shell-organic medium interaction parameter, X | 06-25-2009 |
| 20090306278 | Coating with improved hiding compositions prepared therewith, and processes for the preparation thereof - A coating containing pigment particles and a polymer matrix is provided. The coating contains pigment particles that have a scattering coefficient with a linear or quasi-linear relationship to the pigment volume concentration of those pigment particles. The coating has improved hiding and is useful as a protective coating or an aesthetic coating on an underlying substrate. Also provided are compositions useful for preparing the coating, including covalently bonded composite particles and aqueous dispersions containing composite particles. The composite particles each contain a pigment particle with a plurality of polymer particles attached by adsorption on the outer surface of the pigment particle or by covalent bonding to the pigment particle through a coupling agent. Methods to prepare the composite particles and coating compositions containing the composite particles are also provided. | 12-10-2009 |
| 20100010118 | Core-shell polymeric particles - A polymeric particle including a core, a first shell, and a second shell is provided:
| 01-14-2010 |
| 20100113646 | Aqueous dispersion of polymeric particles - An aqueous dispersion of polymeric particles and process for forming thereof is provided. The particles comprise a first polymer comprising, when dry, at least one void; and, substantially encapsulating the first polymer, at least one second polymer comprising, as polymerized units, at least one ethylenically unsaturated monomer. | 05-06-2010 |
