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:
Apr. 14, 2020
Filed:
Mar. 14, 2018
Applicant:
Montefibre Mae Technologies S.r.l., Milan, IT;
Inventors:
Franco Francalanci, Novara, IT;
Massimo Marinetti, Mestre, IT;
Roberto Proserpio, Mariano Comense, IT;
Assignee:
MONTEFIBRE MAE TECHNOLOGIES S.R.L., Milan, IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08J 3/09 (2006.01); C08F 220/46 (2006.01); D01F 6/18 (2006.01); D01F 1/10 (2006.01); D01F 6/38 (2006.01); D01D 1/02 (2006.01); D02G 1/00 (2006.01);
U.S. Cl.
CPC ...
C08J 3/097 (2013.01); C08F 220/46 (2013.01); D01D 1/02 (2013.01); D01F 1/10 (2013.01); D01F 6/18 (2013.01); D01F 6/38 (2013.01); C08J 2333/20 (2013.01); D02G 1/006 (2013.01);
Abstract
A process for the preparation of a homogeneous spinning solution for the production of acrylic fibers, which includes: preparing an aqueous suspension of homopolymer or copolymer of acrylonitrile through the polymerization of monomers in aqueous suspension, removal of the unreacted monomers, filtration and washing of the aqueous suspension, obtaining a filtration cake; dispersing the filtration cake; and evaporating the dispersion of polymer or obtaining the homogeneous spinning solution.