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:
Dec. 02, 2025
Filed:
Jul. 15, 2021
Applicant:
Omya International Ag, Oftringen, CH;
Inventors:
Matthias Welker, Hésingue, FR;
Samuel Rentsch, Spiegel bei Bern, CH;
Assignee:
OMYA INTERNATIONAL AG, Oftringen, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08K 3/26 (2006.01); C08K 7/24 (2006.01); C08K 9/04 (2006.01); C09C 3/08 (2006.01);
U.S. Cl.
CPC ...
C08K 9/04 (2013.01); C08K 3/26 (2013.01); C08K 7/24 (2013.01); C09C 3/08 (2013.01); C08K 2003/265 (2013.01); C08K 2201/002 (2013.01); C08K 2201/005 (2013.01); C08K 2201/006 (2013.01);
Abstract
A porous filler for reducing the gas permeability of an elastomer composition, a process for producing the elastomer composition comprising the porous filler, and the elastomer composition itself. The porous filler is selected from surface-reacted calcium carbonate, precipitated hydromagnesite and mixtures thereof. The addition of the porous filler to the elastomer composition allows for reducing the gas permeability of the elastomer composition while retaining or improving the mechanical properties of the elastomer composition.