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:
Oct. 26, 2010
Filed:
Feb. 15, 2007
Jean Jacques Flat, Goupillieres, FR;
Marius Hert, Serquigny, FR;
Jean Jacques Flat, Goupillieres, FR;
Marius Hert, Serquigny, FR;
Arkema France, Colombes, FR;
Abstract
The present invention relates to a structure comprising a substrate and at least one first layer applied to the substrate and made of a thermoplastic composition comprising at least one functionalized polyolefin obtained either by copolymerization or by grafting of a polyolefin backbone with an unsaturated monomer comprising an anhydride, acid or epoxide function, said functionalized polyolefin being grafted with polyether units comprising a terminal amine, by means of reactive extrusion, as a breathable waterproof material having a water vapor permeability of at least 300 g/m24 hmeasured according to the standard ASTM E96, method BW (38° C./50% relative humidity), for a film of 25 μm. It also relates to the use of such a composition as a breathable waterproof material having a water vapor permeability of at least 300 g/m24 h(measured according to the standard ASTM E96, method BW 38° C./50% relative humidity), for a film of 25 μm.