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. 30, 2017
Filed:
Dec. 08, 2009
Applicants:
William David Coulter, Konolfingen, CH;
Rüdger Wittenberg, Bremen, DE;
Inventors:
William David Coulter, Konolfingen, CH;
Rüdger Wittenberg, Bremen, DE;
Assignee:
Other;
Primary Examiner:
Int. Cl.
CPC ...
C08L 23/06 (2006.01); C08L 23/04 (2006.01); C08L 23/08 (2006.01); C08L 23/10 (2006.01); C08L 23/14 (2006.01); C08L 53/00 (2006.01); C08L 53/02 (2006.01); C08K 3/30 (2006.01); C08K 5/01 (2006.01);
U.S. Cl.
CPC ...
C08L 23/06 (2013.01); C08L 23/04 (2013.01); C08L 23/0815 (2013.01); C08L 23/10 (2013.01); C08L 23/142 (2013.01); C08L 53/00 (2013.01); C08L 53/025 (2013.01); C08K 3/30 (2013.01); C08K 5/01 (2013.01); C08L 2666/02 (2013.01); C08L 2666/04 (2013.01); C08L 2666/08 (2013.01);
Abstract
PVC-free polymer compound for producing seals containing scavengers for screw caps, in particular twist crown corks, characterized in that the Shore A hardness of the polymer compound lies between 50 and 90 and, in a compression set test analogous to ASTM D395-97, Method B, the polymer compound has a compression set of between 30% and 90% after it has been left for 22 hours at 70° C. under a compression of 25%.