Fabric (woven – knitted – or nonwoven textile or cloth – etc.) – Coated or impregnated woven – knit – or nonwoven fabric which... – Coating or impregnation specified as porous or permeable to...
Reexamination Certificate
2007-02-15
2010-10-26
Salvatore, Lynda (Department: 1786)
Fabric (woven, knitted, or nonwoven textile or cloth, etc.)
Coated or impregnated woven, knit, or nonwoven fabric which...
Coating or impregnation specified as porous or permeable to...
C442S394000, C442S398000
Reexamination Certificate
active
07820562
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/m224 h−1measured 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/m224 h−1(measured according to the standard ASTM E96, method BW 38° C./50% relative humidity), for a film of 25 μm.
REFERENCES:
patent: 5800928 (1998-09-01), Fischer et al.
patent: 6093496 (2000-07-01), Dominguez et al.
patent: 0688826 (1995-12-01), None
patent: 2866891 (2005-09-01), None
patent: 2 866 891 (2005-09-01), None
Flat Jean Jacques
Hert Marius
Arkema France
Millen White Zelano & Branigan P.C.
Salvatore Lynda
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