Patent classifications
Y10T442/676
Vapor-permeable, substantially water-impermeable multilayer article
This disclosure relates to an article that includes a nonwoven substrate, a first film supported by the nonwoven substrate, and a second film such that the first film is between the nonwoven substrate and the second film. The first film includes a first polymer and a pore-forming filler. The difference between a surface energy of the first film and a surface energy of the nonwoven substrate is at most about 10 mN/m. The second film includes a second polymer capable of absorbing and desorbing moisture and providing a barrier to aqueous fluids.
Barrier films
Various polymeric barrier compositions are described which when formed into films, are useful in reducing transmission of odors. The films can be incorporated into a wide range of products such as multilayer barrier films used in medical applications and particularly in ostomy appliances. In certain versions, the films include semi-crystalline cyclic olefin copolymers.
Vapor-permeable, substantially water-impermeable multilayer article
This disclosure relates to an article that includes a nonwoven substrate, a first film supported by the nonwoven substrate, and a second film such that the first film is between the nonwoven substrate and the second film. The first film includes a first polymer and a pore-forming filler. The difference between a surface energy of the first film and a surface energy of the nonwoven substrate is at most about 10 mN/m. The second film includes a second polymer capable of absorbing and desorbing moisture and providing a barrier to aqueous fluids.
Vapor-permeable, substantially water-impermeable multilayer article
This disclosure relates to an article (e.g., a vapor-permeable, substantially water-impermeable multilayer article) that can include a nonwoven substrate and a film supported by the nonwoven substrate. The film can include a polyolefin grafted with an anhydride, an acid, or an acrylate.
Vapor-Permeable, Substantially Water-Impermeable Multilayer Article
This disclosure relates to an article that includes a nonwoven substrate, a first film supported by the nonwoven substrate, and a second film such that the first film is between the nonwoven substrate and the second film. The first film includes a first polymer and a pore-forming filler. The difference between a surface energy of the first film and a surface energy of the nonwoven substrate is at most about 10 mN/m. The second film includes a second polymer capable of absorbing and desorbing moisture and providing a barrier to aqueous fluids.
Vapor-permeable, substantially water-impermeable multilayer article
This disclosure relates to an article that includes a nonwoven substrate, a first film supported by the nonwoven substrate, and a second film such that the first film is between the nonwoven substrate and the second film. The first film includes a first polymer and a pore-forming filler. The difference between a surface energy of the first film and a surface energy of the nonwoven substrate is at most about 10 mN/m. The second film includes a second polymer capable of absorbing and desorbing moisture and providing a barrier to aqueous fluids.
VAPOR-PERMEABLE, SUBSTANTIALLY WATER-IMPERMEABLE MULTILAYER ARTICLE
This disclosure relates to an article (e.g., a vapor-permeable, substantially water-impermeable multilayer article) that can include a nonwoven substrate and a film. supported by the nonwoven substrate. The film can include a polyolefin grafted with an anhydride, an acid, or an acrylate.
Vapor-permeable, substantially water-impermeable multilayer article
This disclosure relates to an article (e.g., a vapor-permeable, substantially water-impermeable multilayer article) that can include a nonwoven substrate and a film supported by the nonwoven substrate. The film can include a polyolefin grafted with an anhydride, an acid, or an acrylate.
VAPOR-PERMEABLE, SUBSTANTIALLY WATER-IMPERMEABLE MULTILAYER ARTICLE
This disclosure relates to an article that includes a nonwoven substrate, a first film supported by the nonwoven substrate, and a second film such that the first film is between the nonwoven substrate and the second film. The first film includes a first polymer and a pore-forming filler. The difference between a surface energy of the first film and a surface energy of the nonwoven substrate is at most about 10 mN/m. The second film includes a second polymer capable of absorbing and desorbing moisture and providing a barrier to aqueous fluids.
Laminar articles with good hydrocarbon barrier
Disclosed is a laminar shaped article comprising a heterogeneous blend of (a) a composition comprising a vinyl halide or vinylidene halide polymer and optionally an ethylene copolymer containing carboxyl and/or carbon monoxide moieties, and (b) a polyolefin functionalized with a comonomer selected from the group consisting of maleic anhydride, maleic acid diesters, maleic acid monoesters, itaconic anhydride, itaconic acid diesters, itaconic acid monoesters, fumaric acid diesters, fumaric acid monoesters, or combinations thereof as a compatibilizer; and (c) a polyamide wherein the polyamide is present in the vinyl halide or vinylidene halide polymer as a multitude of overlapping layers.