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:
May. 24, 2005
Filed:
Apr. 08, 2002
Shelby F. Thames, Hattiesburg, MS (US);
Oliver W. Smith, Petal, MS (US);
Sheng Chen, Shanghai, CN;
Catherine C. Blackwell, Hattiesburg, MS (US);
Shelby F. Thames, Hattiesburg, MS (US);
Oliver W. Smith, Petal, MS (US);
Sheng Chen, Shanghai, CN;
Catherine C. Blackwell, Hattiesburg, MS (US);
The University of Southern Mississippi, Hattiesburg, MS (US);
Abstract
A process for synthesizing copolymers of ethylenically unsaturated monomers with ethylenically unsaturated derivatives of fatty acids and/or oils via emulsion polymerization techniques is performed in two stages. One or more suitable ethylenically unsaturated monomers are polymerized in the first stage of an emulsion polymerization. The ethylenically unsaturated derivatives of fatty acids and/or oils are blended with other monomers and polymerized in a second stage of the polymerization reaction. A suitable surfactant is added to the polymerization mixture to facilitate formation of the emulsion. In a preferred embodiment, the surfactant is a hybrid surfactant, i.e., one having both anionic and non-ionic characteristics.