The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 06, 2007
Filed:
Aug. 12, 2003
James Foster Von Schmittou, Spartanburg, SC (US);
Darrell Scott Nasser, Easley, SC (US);
James Foster Von Schmittou, Spartanburg, SC (US);
Darrell Scott Nasser, Easley, SC (US);
Hexion Specialty Chemicals, Inc., Columbus, OH (US);
Abstract
A process is provided to produce an aqueous dispersion wherein the aqueous dispersion enhances the water and oil repellency of materials. The process comprises: 1) contacting at least one fluoroalkyl monomer, at least one water-dispersible polyester, water, and optionally an ethylenically unsaturated monomer to form a pre-emulsion; and 2) polymerizing the pre-emulsion in a polymerization zone in the presence of an initiator to produce the aqueous dispersion. In another embodiment, a process to produce an aqueous dispersion is provided. The process comprises: 1) contacting at least one fluoroalkyl monomer, at least one water-dispersible polyester, water, and optionally an ethylenically unsaturated monomer to form a pre-emulsion; 2) shearing the pre-emulsion to produce a mini-emulsion; and 3) polymerizing the miniemulsion in a polymerization zone to produce the aqueous dispersion.