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:
Sep. 22, 2026
Filed:
Nov. 25, 2021
Applicant:
Omya International Ag, Oftringen, CH;
Inventors:
Michael Knerr, Oftringen, CH;
Christoph Hirsiger, Koppigen, CH;
Assignee:
OMYA INTERNATIONAL AG, Oftringen, CH;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08K 9/04 (2006.01); A61L 15/22 (2006.01); A61L 15/42 (2006.01); C08J 5/18 (2006.01); C08K 3/26 (2006.01); C09C 1/02 (2006.01);
U.S. Cl.
CPC ...
C08K 9/04 (2013.01); A61L 15/225 (2013.01); A61L 15/42 (2013.01); C08J 5/18 (2013.01); C08K 3/26 (2013.01); C09C 1/021 (2013.01); C08J 2323/06 (2013.01); C08K 2003/265 (2013.01); C08K 2201/003 (2013.01); C08K 2201/005 (2013.01); C08K 2201/006 (2013.01);
Abstract
The present invention relates to a breathable film having a basis weight from 1 to 15 g/mcomprising at least one thermoplastic polymer and a surface-treated filler material comprising calcium carbonate. The surface-treated filler material has a specific particle size distribution and a specific surface-treatment layer. The present invention further relates to a process for producing the breathable film, the use of a surface-treated filler material comprising calcium carbonate as a filler in a breathable film, an article comprising the breathable film and uses of the breathable film.