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:
Jul. 28, 2015
Filed:
Nov. 23, 2012
Applicant:
Versalis S.p.a., San Donato Milanese, IT;
Inventors:
Maria Parisi, Ravenna, IT;
Piero Maestri, Forlimpopoli, IT;
Assignee:
VERSALIS S.P.A., San Donato Milanese, IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08C 2/06 (2006.01); C08J 3/00 (2006.01); C08C 2/00 (2006.01); C08F 6/10 (2006.01); C08C 2/04 (2006.01);
U.S. Cl.
CPC ...
C08J 3/00 (2013.01); C08C 2/00 (2013.01); C08C 2/06 (2013.01); C08F 6/10 (2013.01); C08J 2309/06 (2013.01);
Abstract
A process for the removal of solvent from a polymeric solution including at least one elastomeric polymer. The polymeric solution is subjected to a stripping step by means of water vapor, in the presence of a dispersant system including: from 0.005% by weight to 1% by weight, with respect to the total weight of the dry elastomeric polymer, of at least one lamellar material; from 0.0005% by weight to 1% by weight, with respect to the total weight of the dry elastomeric polymer, of at least one cationic surfactant.