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. 11, 2023
Filed:
Jul. 23, 2019
Applicant:
Mapei Spa, Milan, IT;
Inventors:
Massimo Stefanoni, Milan, IT;
Marco Squinzi, Milan, IT;
Carlo Pistolesi, Milan, IT;
Enrico Dal Negro, Milan, IT;
Alessandro Boscaro, Milan, IT;
Assignee:
MAPEI SPA, Milan, IT;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C09K 17/16 (2006.01); C09K 17/32 (2006.01); E21D 9/00 (2006.01); E21D 9/10 (2006.01);
U.S. Cl.
CPC ...
C09K 17/16 (2013.01); C09K 17/32 (2013.01); E21D 9/001 (2013.01); E21D 9/10 (2013.01);
Abstract
The present invention relates to the use of foaming additives in liquid, paste or powder form, to condition soil excavated with a tunnel boring machine. Said additives can be classified as readily biodegradable and are characterised by a lower ecotoxicological impact than commercial products.