A61F2013/530489

Absorbent article or wipe comprising a nonwoven material with bicomponent fibers comprising antimony-free polyethylene terephthalate

An absorbent article is provided, the absorbent article comprising a nonwoven material. The nonwoven material comprises core/sheath bicomponent fibers wherein the core is formed of PET resin. The present disclosure also provides a wipe comprising a nonwoven material, the nonwoven material comprising core/sheath bicomponent fibers wherein the core is formed of PET resin. The PET has less than 150 ppm of antimony.

Liquid and solid porous-absorbent article
20190209399 · 2019-07-11 ·

The present invention discloses a absorbent article configured for attachment to the interior of an child potty/bed pan or to be worn on an user. The absorbent article composes an absorbent core, first absorbent channel layer, intermediate channel layer and top permeable layer composes made up of permeable materials and further comprises an material capable of converting an liquid substance to an gel-like substance. Specifically, regions of the absorbent core first absorbent channel layer and intermediate channel layer may comprise an super absorbent polymer (SAP) material such as hydrogel, sodium polyacrylate, polyacrylate absorbents, or an biodegradable material such as an powder corn starch or wheat mixture or an combination of super absorbent polymer (SAP) and an biodegradable material.

Catalysts For The Production Of Acrylic Acid Or Its Derivatives

Catalysts for dehydrating hydroxypropionic acid, hydroxypropionic acid derivatives, or mixtures thereof to acrylic acid, acrylic acid derivatives, or mixtures thereof with high yield and selectivity, short residence time, and without significant conversion to undesired side products, such as, for example, acetaldehyde, propionic acid, and acetic acid, are provided. The catalysts are mixed protonated monophosphates. Methods of preparing the catalysts are also provided.

Absorbent article with high absorbent material content

An absorbent article includes a longitudinal axis extending in a longitudinal direction of the article, a liquid permeable topsheet, a liquid impermeable backsheet, and an absorbent core disposed between the topsheet and backsheet. The absorbent core includes a combination of superabsorbent polymer and cellulose fibers. The article further includes an acquisition-distribution layer; and at least one channel positioned within a layer located between the topsheet and the backsheet, the at least one channel being substantially free of fibers and superabsorbent polymer. An indentation occurs in at least one of the topsheet and the backsheet that correspond to the at least one channels when the article is loaded with fluid.

Absorbent core cover for super-absorbing absorbent cores of sanitary products
11998434 · 2024-06-04 · ·

The present invention relates to an absorbent core for sanitary products with an absorption matrix which comprises a high proportion of super-absorbing particles, and an absorbent core cover for enveloping the absorption matrix, wherein the absorbent core cover comprises at least one upper side sheet and one bottom side sheet, and the absorbent core cover comprises at least one connection region spaced apart from the edge of the absorbent core in which the upper side sheet and the bottom side sheet are connected to each other. Here, at least the upper side sheet of the absorbent core cover is embodied as a fleece composite with a fixing layer with a low permeability to retain the particles in the absorption matrix, and a transfer layer for acquiring fluid. Moreover, the invention relates to a sanitary product having such an absorbent core, the use of a fleece composite as an absorbent core cover, and a method for manufacturing a fleece composite for the upper side sheet of the absorbent core cover.

PROCESS FOR MAKING AN ABSORBENT ARTICLE COMPRISING A TOPSHEET/ACQUISITION LAYER LAMINATE

A process of making an absorbent article is disclosed. A liquid permeable topsheet web extending substantially continuously in a machine direction a backsheet web, and an acquisition layer are provided. The topsheet web has first and second surfaces. The backsheet web extends substantially continuously in the machine direction. The acquisition layer has a first and second surface. The topsheet and acquisition layer are aligned in a face to face relationship such that the second surface of the topsheet in in contact with the first surface of the acquisition layer and simultaneously mechanically deformed which combines the topsheet with the acquisition layer. The topsheet web and acquisition layer are nested together such that a majority of the three-dimensional protrusions formed in the topsheet web coincide with and fit together with a majority of the three-dimensional protrusions formed in the acquisition layer to provide a topsheet/acquisition layer laminate web having three-dimensional protrusions.

Catalysts for the production of acrylic acid or its derivatives

Catalysts for dehydrating hydroxypropionic acid, hydroxypropionic acid derivatives, or mixtures thereof to acrylic acid, acrylic acid derivatives, or mixtures thereof with high yield and selectivity, short residence time, and without significant conversion to undesired side products, such as, for example, acetaldehyde, propionic acid, and acetic acid, are provided. The catalysts are mixed protonated monophosphates. Methods of preparing the catalysts are also provided.

ABSORBENT CORE WITH EFFICIENT FLOW GUIDE PROPERTY AND BREATHABILITY, AND MANUFACTURING METHOD THEREOF

An absorbent core with an efficient flow guide property and breathability, and method for manufacturing same. The absorbent core comprises a surface layer, a bottom layer, and an absorbent layer between the surface layer and the bottom layer; the absorbent layer comprises a non-woven fabric layer attached to the lower surface of the surface layer; a super absorbent polymer is uniformly scattered in the non-woven fabric layer; the surface layer and the non-woven fabric layer are attached to each other to form a composite layer; a flow guide groove is formed on the composite layer and divides the absorbent core into a plurality of absorbent regions; the composite layer with the flow guide groove is connected with the upper surface of the bottom layer; a super absorbent polymer is uniformly scattered between the bottom surface of the non-woven fabric layer and the upper surface of the bottom layer.

FLUFF PULP AND HIGH SAP LOADED CORE
20190136453 · 2019-05-09 ·

A fluff pulp is provided, which comprises softwood fibers; and 3 to 35% by weight of hardwood fibers. A fluff is also provided, which comprises the fiberized or shredded fluff pulp. A core is also provided, which comprises the fluff and at least an SAP. Processes for making and using the fluff pulp, fluff, and core are provided, and products made thereby.

ABSORBENT ARTICLE

An absorbent article includes an absorber having a front surface side sheet, a back surface side sheet disposed on the back surface side of the front surface side sheet, cells each of which is surrounded by bonded portions of the front surface side sheet and the back surface side sheet and inside each of which the front surface side sheet and the back surface side sheet are not bonded, and particulate materials which include superabsorbent polymer particles and which are contained in each of the cells. The bonded portions are arranged in continuous line shapes or dotted line shapes so as to form same-sized regular hexagons, which connect each other as unit shapes to be a honeycomb shape. All the cells are the same-sized regular hexagonal cells each of which is surrounded by the bonded portions.