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. 26, 2005
Filed:
Mar. 12, 2002
David Latini, Terni, IT;
Gianni Romani, Configni, IT;
David Latini, Terni, IT;
Gianni Romani, Configni, IT;
Alcantara S.p.A., Milan, IT;
Abstract
A method of preparation of microfibrous non-woven fabric of the suede-finish type comprising the steps of: spinning of a bi-component fiber of the 'islands in the sea' type in which the 'island' comprises a polymer chosen from among those employed in textile applications while the “sea” is a polymer that can dissolve and be removed by means of treatment with water, alkaline or acidic aqueous solutions, with non-polluting organic solvents alone or in aqueous solution; preparing a felt with the bi-component fiber; impregnating the felt with aqueous solution of polyvinylalcohol with reduced solubility in water; removing the “sea” component by treatment with solvents step; impregnating with emulsion or polyurethane dispersion; removing the polyvinylalcohol; and finishing the non-woven fabric obtained.