Abstract:
PCT No. PCT/EP96/00621 Sec. 371 Date Dec. 22, 1997 Sec. 102(e) Date Dec. 22, 1997 PCT Filed Feb. 14, 1996 PCT Pub. No. WO96/25959 PCT Pub. Date Aug. 29, 1996The invention relates to sheet-like absorbents for water and aqueous solutions, containing at a defined distribution A) at least one water-swellable synthetic and/or natural superabsorbent polymer, and B) at least one water-soluble synthetic and/or natural polymer as a matrix of sheet-like design wherein the superabsorbent component A) is integrated or fixed. The sheet-like absorbents have an increased absorptive capacity for water and aqueous liquids, particularly under load. They are manufactured by forming a sheet-like matrix from the water-soluble synthetic and/or natural polymers B) and providing same with said water-swellable synthetic and/or natural superabsorber A), e.g., by applying a solution of matrix B) on a surface, sprinkling same with component A), and drying the sheet-like structure thus obtained. Such sheet-like absorbents are used in hygienic articles, as components in natural or artificial soils, as insulating material for pipes and lines, primarily cables and building constructions, as liquid-absorbing and liquid-storing component in packaging materials, as a part in articles of clothing, and as a depot for the controlled release of an active substance.
Abstract:
The invention pertains to layered bodies used to absorb water and aqueous fluids and made from at least one water-soluble polymer foam layer and particulate superabsorbent polymers in a 1:500 to 50:1 ratio of polymer foam to superabsorber, the superabsorber being arranged on, within or under the polymer layer in a quantitatively and/or positionally predetermined and set areal arrangement. The polymer foam may contain fillers, pigments and/or synthetic fibers. The layered bodies have increased power to absorb water and aqueous fluids, especially under load. They are produced by spreading the foam in a sheet, applying the superabsorber in the prescribed ratio, optionally using a mask, and fixing it by heat treatment. Such layered bodies are used in hygienic products, as components in natural or artificial soils, as insulating material for pipes and lines, especially cables, and building units, as liquid-absorbing and -retaining components in packing materials and incorporated in clothing.
Abstract:
In the present invention there is disclosed a layered absorbing body for water or aqueous solutions, comprising at least two components A and B, wherein the component A is represented by at least one water-swelling synthetic and/or natural and the component B is represented by at least one water-soluble foamed synthetic and/or natural polymer, wherein the component A is on top of, beneath, or between the component B matrix performed as a sheet. The invented layered absorbing body is suitable particularly not only for sanitary articles absorbing body liquids, such as blood, perspiration, urine and other liquid excretes, but also for covering wounds, for packaging, insulating a storage purposes as well as for protection of plants. Described is also a process for producing such layered absorbing body.
Abstract:
PCT No. PCT/EP96/00621 Sec. 371 Date Dec. 22, 1997 Sec. 102(e) Date Dec. 22, 1997 PCT Filed Feb. 14, 1996 PCT Pub. No. WO96/25959 PCT Pub. Date Aug. 29, 1996The invention relates to sheet-like absorbents for water and aqueous solutions, containing at a defined distribution A) at least one water-swellable synthetic and/or natural superabsorbent polymer, and B) at least one water-soluble synthetic and/or natural polymer as a matrix of sheet-like design wherein the superabsorbent component A) is integrated or fixed. The sheet-like absorbents have an increased absorptive capacity for water and aqueous liquids, particularly under load. They are manufactured by forming a sheet-like matrix from the water-soluble synthetic and/or natural polymers B) and providing same with said water-swellable synthetic and/or natural superabsorber A), e.g., by applying a solution of matrix B) on a surface, sprinkling same with component A), and drying the sheet-like structure thus obtained. Such sheet-like absorbents are used in hygienic articles, as components in natural or artificial soils, as insulating material for pipes and lines, primarily cables and building constructions, as liquid-absorbing and liquid-storing component in packaging materials, as a part in articles of clothing, and as a depot for the controlled release of an active substance.
Abstract:
PCT No. PCT/EP96/00621 Sec. 371 Date Dec. 22, 1997 Sec. 102(e) Date Dec. 22, 1997 PCT Filed Feb. 14, 1996 PCT Pub. No. WO96/25959 PCT Pub. Date Aug. 29, 1996The invention relates to sheet-like absorbents for water and aqueous solutions, containing at a defined distribution A) at least one water-swellable synthetic and/or natural superabsorbent polymer, and B) at least one water-soluble synthetic and/or natural polymer as a matrix of sheet-like design wherein the superabsorbent component A) is integrated or fixed. The sheet-like absorbents have an increased absorptive capacity for water and aqueous liquids, particularly under load. They are manufactured by forming a sheet-like matrix from the water-soluble synthetic and/or natural polymers B) and providing same with said water-swellable synthetic and/or natural superabsorber A), e.g., by applying a solution of matrix B) on a surface, sprinkling same with component A), and drying the sheet-like structure thus obtained. Such sheet-like absorbents are used in hygienic articles, as components in natural or artificial soils, as insulating material for pipes and lines, primarily cables and building constructions, as liquid-absorbing and liquid-storing component in packaging materials, as a part in articles of clothing, and as a depot for the controlled release of an active substance.
Abstract:
The absorption structure having a flat form for water andaqueous solutions is used as hygiene products, components innatural or artificial soils, as insulation material for pipes andconductors, above all for cables and building structures, as anabsorption and liquid retention agent for packaging materials, asclothing elements and as a tank for controlled release of anactive substance. The device contains component A - at least onesynthetic and/or natural superabsorbing polymer expanding inwater, and component B which is at least one water solublesynthetic and/or natural polymer in the form of a matrix with aflat shape, in or on which component A is attached by defineddistribution. The absorption device has an increased ability toabsorb water and aqueous solutions, in particular when under load.It is manufactured when a matrix of flat shape is formed from thewater soluble and/or natural polymer and the water expansionsyntetic and/or natural superabsorber A is introduced, e.g. when asolution is applied on a flat plane, component and the flatstructure produced in this way is dried.33 claims
Abstract:
PCT No. PCT/EP96/00621 Sec. 371 Date Dec. 22, 1997 Sec. 102(e) Date Dec. 22, 1997 PCT Filed Feb. 14, 1996 PCT Pub. No. WO96/25959 PCT Pub. Date Aug. 29, 1996The invention relates to sheet-like absorbents for water and aqueous solutions, containing at a defined distribution A) at least one water-swellable synthetic and/or natural superabsorbent polymer, and B) at least one water-soluble synthetic and/or natural polymer as a matrix of sheet-like design wherein the superabsorbent component A) is integrated or fixed. The sheet-like absorbents have an increased absorptive capacity for water and aqueous liquids, particularly under load. They are manufactured by forming a sheet-like matrix from the water-soluble synthetic and/or natural polymers B) and providing same with said water-swellable synthetic and/or natural superabsorber A), e.g., by applying a solution of matrix B) on a surface, sprinkling same with component A), and drying the sheet-like structure thus obtained. Such sheet-like absorbents are used in hygienic articles, as components in natural or artificial soils, as insulating material for pipes and lines, primarily cables and building constructions, as liquid-absorbing and liquid-storing component in packaging materials, as a part in articles of clothing, and as a depot for the controlled release of an active substance.
Abstract:
La invencion se refiere a cuerpos laminares de cuando menos una capa de espuma polimérica soluble en agua así como polimerizados superabsorbentes en forma de partículas, para la absorcion de agua y líquidos acuosos, que sobre, entre o debajo de la capa de espuma polimérica, contiene al superabsorbente en una colocacion espacial cuantitativa y/o posicionalmente predeterminada y fija en una proporcion de espuma de polímero a superabsorbente de 1:500 a 50:1. La espuma de polímero puede contener rellenos, pigmentos y/o fibras sintéticas. Los cuerpos laminares presentan una alta absorbencia de agua y líquidos acuosos, en especial bajo carga. Se preparan al distribuir de forma laminar la espuma y colocar el superabsorbente en la proporcion predeterminada, eventualmente utilizando una plantilla y fijarlo por medio de tratamiento térmico. Ese tipo de cuerpos laminares se utilizan en artículos higiénicos, como componentes en suelos naturales o sintéticos, como aislantes para tubos y conductos, sobre todo cables, y construcciones como componentes receptores y almacenadores de líquidos en materiales de empaque así como parte de piezas de vestir.
Abstract:
PCT No. PCT/EP96/00620 Sec. 371 Date Oct. 2, 1997 Sec. 102(e) Date Oct. 2, 1997 PCT Filed Feb. 14, 1996 PCT Pub. No. WO96/25958 PCT Pub. Date Aug. 29, 1996The invention relates to layered bodies for absorbing water and aqueous liquids, consisting of at least one water-soluble polymer foam layer and particulate superabsorbent polymerizates, which contain the superabsorber on top of, between or underneath the foamed polymer layer in a quantitatively and/or locally predetermined and fixed sheet-like arrangement at a quantity ratio of polymer foam and superabsorber of from 1:500 to 50:1. The polymer foam may contain fillers, pigments and/or synthetic fibers. The layered bodies have increased absorptive capacity for water and aqueous liquids, particularly under load. They are produced by spreading the foam in a sheet-like fashion, applying the superabsorber at the predetermined quantity ratio, optionally using a template, and fixing it by a heat treatment. Such layered bodies are used in hygiene articles, as components in natural or artificial soils, as insulating material for pipes and lines, particularly cables, and building constructions, as liquid-absorbing and storing component in packaging materials, and as a part in clothing articles.