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. 13, 2010
Filed:
Aug. 29, 2006
Omar Teofrasti, Milan, IT;
Eraldo Spila, Milan, IT;
Carmine Carlo Ammirati, Terni, IT;
Alcantara S.p.A., Milan, IT;
Abstract
In one embodiment, a process is disclosed for the preparation of a multilayer intermediate product impregnated with polyurethane that is useful for the production of soft synthetic leather having enhanced mechanical resistance. The process comprises the steps of: a. producing a microfibrous non-woven intermediate product that includes microfibers of one or more polymers selected from the group consisting of polyethylene terephthalate, polytrimethylene terephthalate, polybutylene terephthalate, polyacrylonitrile, and polyamide; b. producing an intermediate multilayer product by adhesive coupling, the intermediate multilayer product including at least one layer of the non-woven microfibrous intermediate product and at least one layer of a reinforcing textile product; and c. impregnating the multilayer intermediate product with one or more polyurethane solutions, thereby obtaining a multilayer intermediate product impregnated with polyurethane.