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. 11, 2014
Filed:
Jul. 06, 2009
Arwin W. Van Der Waal, Ammerstol, NL;
Marc S. Sonderman, Purmerend, NL;
Stephen W. Bourne, Oostzaan, NL;
Adrie A. Van Der Huizen, Castricum, NL;
Alexandre Rodrigues Da Silva, Sao Paulo, BR;
David H. Brooks, Parkersburg, WV (US);
Arwin W. van der Waal, Ammerstol, NL;
Marc S. Sonderman, Purmerend, NL;
Stephen W. Bourne, Oostzaan, NL;
Adrie A. van der Huizen, Castricum, NL;
Alexandre Rodrigues da Silva, Sao Paulo, BR;
David H. Brooks, Parkersburg, WV (US);
Kraton Polymers U.S. LLC, Houston, TX (US);
Abstract
Accordingly, the invention provides a process for the preparation of an artificial latex, comprising the steps: (a) emulsification of a cement comprising a rubber dissolved in a suitable organic solvent, together with an aqueous surfactant solution, thus forming an oil-in-water emulsion; (b) step-wise reduction of the solvent content of the oil-in-water emulsion in two or more stages resulting in an artificial latex. In addition, the invention provides a continuous stirred vessel for removing an organic solvent from an oil-in-water emulsion comprising rubber dissolved in an organic solvent.