Abstract: Monolithic films are provided having controlled regional breathability with high MVTR regions and low MVTR regions. The zoned monolithic films are be made by selectively applying coatings to a monolithic film prepared from organic acid-modified ionomer resins.

Abstract: Articles having zoned breathability such as personal hygiene articles are provided having controlled regional breathability with high MVTR regions and low MVTR regions. The zoned breathability articles comprise organic acid-modified ionomer resins.

Abstract: Disclosed are films obtained from blends of ethylene copolymers with organic acid salt-modified potassium ionomeric copolymers. The films of the present invention can be welded using RF energy.

Abstract: Disclosed are films obtained from blends of ethylene copolymers with organic acid salt-modified potassium ionomeric copolymers. The films of the present invention can be welded using RF energy.

Abstract: Disclosed are films obtained from blends of ethylene copolymers with organic acid salt-modified potassium ionomeric copolymers. The films of the present invention can be welded using RF energy.

Abstract: Disclosed is a variable vapor barrier for moisture control of buildings comprising or formed from a material having a moisture permeance of less than 0.1 perms (grains/h·ft2·inches of Hg) at less than 50% average humidity, such as from 10 to 50% or 20 to 40%; and a moisture permeance greater than 4, or greater than 10 perms at greater than 60% average humidity, such as from 60 to 90%, or 70 to 80%. Also disclosed are articles comprising the variable vapor barrier and methods of their use.

Abstract: Disclosed is a multilayer film or sheet, which comprises at least one vapor barrier layer and at least one vapor transmission-adjusting layer wherein the vapor transmission-adjusting layer comprises a neutralized acid copolymer or ionomer thereof, an organic acid, and optionally other polymers, having a ratio of wet cup permeance to dry cup permeance greater than 10. The vapor barrier layer comprises ethylene polymer, propylene polymer, polyvinyl alcohol, polyamide, polyester, ethylene vinyl alcohol copolymer, polyvinylidene chloride, PVC, or combinations of two or more thereof. The film is useful as a variable vapor barrier for moisture control of buildings. Also disclosed are articles comprising the multilayer film.

Abstract: Disclosed is a composition comprising a neutralized acid copolymer or ionomer thereof, an organic acid, and optionally other polymers, having a ratio of wet cup permeance to dry cup permeance greater than 10. The composition is useful as a variable vapor barrier for moisture control of buildings. Also disclosed are articles comprising the variable vapor composition and methods of their use.

Abstract: A composition and an article comprising or produced from the composition are disclosed. The composition comprises an ionomer and a reducing static charge-buildup amount of potassium ion wherein the ionomer is neutralized with sodium, zinc, or magnesium ions. The article can be a film including a multilayer film.

Abstract: An article comprising a selectively permeable protective structure wherein the article is wrapped or covered with the structure and a method for limiting damage to the article due to corrosion or mold growth, comprising wrapping or covering the article in the selectively permeable protective structure. The selectively permeable structure comprises a membrane having a moisture vapor permeation value of at least 200 g-mil/m2/24 h and barrier to liquid water, and optionally a supporting substrate.

Abstract: A method for preparing a selectively permeable protective structure. The selectively permeable structure comprises a membrane having a moisture vapor permeation value of at least 200 g-mil/m2/24 h and barrier to liquid water, and a supporting substrate.

Abstract: A method for preparing a multilayer package comprising a substrate and a composition having a moisture vapor permeation value of at least 200 g-mil/m2/24 h and barrier to liquid water. The method comprises melt blending an organic acid-modified ionomer with an ethylene-containing copolymer and a copolymer comprising a dicarboxylic acid derivative as a comonomer to provide a composition and applying the composition to the substrate in a molten condition and allowing the composition to cool and solidify.

Abstract: A selectively permeable protective structure and a method for limiting damage to the article due to corrosion or mold growth, comprising wrapping or covering the article in the selectively permeable protective structure. The selectively permeable structure comprises a membrane having a moisture vapor permeation value of at least 200 g-mil/m2/24 h and barrier to liquid water, and optionally a supporting substrate.

Abstract: Disclosed are improved packages and methods for packaging meat, fish, poultry, vegetables or other food products. A package of the present invention is a vacuum skin package comprising a multilayer film comprising at least one layer of an organic acid modified ionomer blend and at least one layer of an ethylene-containing polymer, such as an ethylene/vinyl acetate copolymer, wherein the film has specific gas permeability requirements.

Abstract: Disclosed are improved packages and methods for packaging meat, fish, poultry, vegetables or other food products. A package of the present invention is a vacuum skin package comprising a multilayer film comprising at least one layer of an organic acid modified ionomer blend and at least one layer of an ethylene-containing polymer, such as an ethylene/vinyl acetate copolymer, wherein the film has specific gas permeability requirements.

Abstract: Disclosed is a multilayer structure comprising a layer of humidity-dependent composition having a ratio of wet cup permeance to dry cup permeance greater than 10 and a layer of crystallizable polymer sufficiently permeable to oxygen, carbon dioxide and water vapor, exhibiting an increase in permeability to at least one of oxygen and carbon dioxide by a factor of at least 2.5 over a temperature range of 10° C. between 0° C. and 40° C. Also disclosed are packaging materials comprising the multilayer structure and methods for storing respiring materials using the packaging materials.

Abstract: Disclosed is a blended composition comprising a humidity-dependent composition having a ratio of wet cup permeance to dry cup permeance greater than 10 and a crystallizable polymer sufficiently permeable to oxygen, carbon dioxide and water vapor, exhibiting an increase in permeability to at least one of oxygen and carbon dioxide by a factor of at least 2.5 over a temperature range of 10° C. between 0° C. and 40° C. Also disclosed are packaging materials comprising the blended composition and methods for storing respiring materials using the packaging materials.

Abstract: A package comprising an article and a selectively permeable protective structure and a method for limiting damage to the article due to corrosion or mold growth, comprising wrapping or covering the article in the selectively permeable protective structure. The selectively permeable structure comprises a membrane that may have a moisture vapor permeation value of at least 800 g-mil/m2/24 h and barrier to liquid water, and optionally a supporting substrate.

Abstract: Multilayer film webs having a layer of an oxygen-permeable composition that is a blend of i) an organic acid or organic acid salt, ii) a copolymer of a) ethylene, b) an C3 to C8 ?,?-ethylenically unsaturated carboxylic acid, and optionally c) an alkyl acrylate or alkyl methacrylate comonomer, where greater than 70% of the total acid moieties of (i) plus (ii) are neutralized to the corresponding metal salts, and iii) at least one additional ethylene-containing polymer selected from the group consisting of ethylene homopolymers and ethylene copolymers other than ethylene acid copolymers and ionomers are used to form packaging materials in a process in which a packaging structure is provided that includes the multilayer film web, a vacuum is applied to the packaging structure, and the perimeters of the film web layers are heat sealed.

Abstract: Disclosed is a variable vapor barrier comprising or produced from a composition wherein the composition comprises an ethylene copolymer, a fatty acid, and an additional polymer; the ethylene copolymer comprises repeat units derived from ethylene, a C3-8 ?,?-ethylenically unsaturated carboxylic acid, and optionally a comonomer; the fatty acid is one or more carboxylic acids having fewer than 36 carbon atoms, or salts thereof; and the additional polymer is present in the from about 30 to about 85%, based on the weight of the composition.