An absorbent article comprising an absorbent core sandwiched between a liquid permeable topsheet and a liquid impermeable back-sheet, and an acquisition distribution system positioned between said topsheet and said absorbent core, wherein the absorbent core comprises absorbent material selected from the group consisting of cellulose fibers, superabsorbent polymers and combinations thereof, wherein said absorbent material is contained within at least one core wrap substrate enclosing said absorbent material, and wherein a top layer of said core wrap is adhered to a bottom layer of said core wrap to form one or more channels substantially free of said absorbent material, wherein said channels have a length extending along a longitudinal axis and the absorbent core has a length extending along said longitudinal axis and wherein the length of said channels is from 10% to 95% of the length of said absorbent core and wherein said channels each follow a substantially continuous path such as from a first end of a channel to a second end of the same channel wherein the acquisition distribution system is multi-layered and comprises at least one spunbond layer and at least one meltblown layer, and wherein said acquisition distribution system is positioned between said absorbent core and said topsheet such that said spunbond and/or meltblown layers are in direct contact with said absorbent core and said topsheet.

An absorbent article includes an absorbent core having an absorbent material enclosed in a core wrap having a top layer and a bottom layer. The bottom layer of the core wrap comprises a nonwoven comprising synthetic fibers, which has a basis weight from about 6 g/m.sup.2 to about 10 g/m.sup.2 and the nonwoven has a static coefficient of friction as measured in cross-machine direction of no more than 0.40.

An absorbent article comprising a pair of leg cuffs with an raised section and an absorbent core comprising at least one channel at least partially oriented in the longitudinal direction of the article. The article may have a crotch width before use as measured between the proximal edges of the leg cuffs at the level of the crotch point of from to 70 mm to 200 mm, and a Relative Crotch Width Reduction (RCWR) of 32 mm/kg to 150 mm/kg.

An absorbent core for use in an absorbent article, the absorbent core extending in a transversal direction and a longitudinal direction. The absorbent core includes a fluid-permeable top layer, a bottom layer, and a middle layer between the top layer and the bottom layer. The middle layer may be a high loft fibrous nonwoven layer, in particular having a density of less than about 0.200 g/cc, measured at a pressure of 4.14 kPa. Superabsorbent polymer particles may be blended with the fibers of the middle layer, except for one or more longitudinally-extending channels substantially free of superabsorbent polymer particles.

An absorbent article comprising a pair of leg cuffs (32) with an raised section (34) and an absorbent core (28) comprising at least one channel (26, 26) at least partially oriented in the longitudinal direction (80) of the article. The article has crotch width (Wd) before use as measured between the proximal edges of the leg cuffs at the level of the crotch point of from to 70 mm to 200 mm, and a Relative Crotch Width Reduction (RCWR) of at least 30 mm/kg.

The present invention relates to a unitary storage layer for an absorbent article, being formed by at least two sub-layers wherein a first outermost sub-layer forming said first surface and comprises cellulose pulp fibers and cross linked cellulose fibers and comprises less than 5% of SAP by weight of the sub-layer, and a second sub layer which comprises cellulose pulp fibers and SAP and is immediately adjacent to said first sub-layer.

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.

Processes for the purification of bio-based acrylic acid to crude and glacial acrylic acid are provided. The bio-based acrylic acid is produced from hydroxypropionic acid, hydroxypropionic acid derivatives, or mixtures thereof. The purification includes some or all of the following processes: extraction, drying, distillation, and melt crystallization. The produced glacial or crude acrylic acid contains hydroxypropionic, hydroxypropionic acid derivatives, or mixtures thereof as an impurity.

The present disclosure is directed to an absorbent article including a closed cell foam matrix for delivering oxygen. The absorbent article includes a liquid permeable inner surface for facing the wearer, an outer surface for facing away from the wearer, an absorbent assembly disposed therebetween, and a closed-cell foam matrix material applied to a portion of the absorbent article. The closed cell foam matrix contains a superabsorbent material and oxygen entrapped within the superabsorbent material. To produce the closed cell foam matrix for delivering oxygen, an alkali hydroxide catalyst and oxygen precursor are both added to an aqueous superabsorbent material. The aqueous solution is applied to a nonwoven material. The nonwoven material is then heated to produce oxygen by reacting the alkali hydroxide catalyst and the oxygen precursor thereby entrapping the oxygen in the formed closed cell foam matrix.

Disclosed herein is a mixed phosphate catalyst for converting lactic acid to acrylic acid, which is characterized by a high conversion of lactic acid, a high selectivity for acrylic acid, a high yield of acrylic acid, and correspondingly low selectivity and molar yields for undesired by-products. This is achieved with a particular class of catalysts defined by a mixture of metal-containing phosphate salts. Further, the catalyst is believed to be stable and active for lengthy periods heretofore unseen in the art for such dehydration processes.