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:
Oct. 11, 2011
Filed:
Aug. 24, 2007
Christoph Schwemler, Leichlingen, DE;
Martin Lüdeke, Krefeld, DE;
Christian Kords, Krefeld, DE;
Reiner Rudolf, Leverkusen, DE;
Christoph Schwemler, Leichlingen, DE;
Martin Lüdeke, Krefeld, DE;
Christian Kords, Krefeld, DE;
Reiner Rudolf, Leverkusen, DE;
Bayer Material Science, Leverkusen, DE;
Abstract
A compounding process is disclosed. The process includes (i) melt blending in an extruder at least two polymeric resins to produce a mixture that includes at least one resin that dissociates to yield monomers and/or oligomers upon heating, said mixture containing less than 1 percent of volatile components, (ii) introducing into said extruder an inert entraining agent, and (iii) removing said entraining agent together with said volatile components from said extruder. The extruder includes at least one melting zone, at least two degassing zones and at least one mixing zone. The end product has a particularly low content of residual solvent and at the same time a low content of monomers or oligomers.