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:
Jan. 06, 2015
Filed:
Jul. 11, 2012
Applicants:
Alfred Popp, Unterhaching, DE;
Christine Kaes, Burghausen, DE;
Klaus Kaeppler, Burghausen, DE;
Ulrike Buettner, Bobersen, DE;
Inventors:
Alfred Popp, Unterhaching, DE;
Christine Kaes, Burghausen, DE;
Klaus Kaeppler, Burghausen, DE;
Ulrike Buettner, Bobersen, DE;
Assignee:
Wacker Chemie AG, Munich, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07F 7/20 (2006.01); C07F 7/21 (2006.01); C08G 77/16 (2006.01); C08G 77/34 (2006.01);
U.S. Cl.
CPC ...
C07F 7/21 (2013.01); C08G 77/16 (2013.01); C08G 77/34 (2013.01);
Abstract
Cyclic siloxanes are separated from short chain hydroxyl-terminated siloxanes by contact with steam at at least 650 hPa absolute. The cyclic siloxanes and other components which are separated by use of steam can be recovered by phase separation, and preferably used in other processes.