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. 17, 2011
Filed:
Jul. 10, 2006
Konrad Roschmann, Ludwigshafen-Edigheim, DE;
Arno Tuchbreiter, Speyer, DE;
Ekkehard Jahns, Weinheim, DE;
Joerg Leuninger, Mainz, DE;
Bernhard Schuler, Mannheim, DE;
Oliver Wagner, Osthofen, DE;
Michaela Reinsch, Neustadt, DE;
Robert Wrazidlo, Ellerstadt, DE;
Konrad Roschmann, Ludwigshafen-Edigheim, DE;
Arno Tuchbreiter, Speyer, DE;
Ekkehard Jahns, Weinheim, DE;
Joerg Leuninger, Mainz, DE;
Bernhard Schuler, Mannheim, DE;
Oliver Wagner, Osthofen, DE;
Michaela Reinsch, Neustadt, DE;
Robert Wrazidlo, Ellerstadt, DE;
BASF Aktiengesellschaft, Ludwigshafen, DE;
Abstract
The present invention provides a process for preparing emulsion polymer particles of a hollow core/shell structure in the presence of a monomer plasticizer having a ceiling temperature less than 181° C. wherein a polymerization inhibitor or reducing agent is not added to the aqueous emulsion of the core shell particles during the neutralization and swelling stage. The obtained core shell particles are useful in paints, paper coatings, foams, and cosmetics.