Patent classifications
A61L15/50
ABSORBENT ARTICLE COMPRISING A LUBRICANT AGENT
The present disclosure relates to an absorbent article, such as an infant diaper, training pant, feminine hygiene article, adult incontinence article or wound care dressing. The absorbent article comprises a topsheet. The topsheet comprises or consists of a fibrous nonwoven layer arranged on a wearer facing side of the topsheet. The fibrous nonwoven layer is coated over a coated area on the wearer facing side of the topsheet with a coating composition. The coating composition comprises a lubricant agent comprising an alkoxylated diester selected from the group consisting of fatty ester lubricants.
ABSORBENT ARTICLE COMPRISING A LUBRICANT AGENT
The present disclosure relates to an absorbent article, such as an infant diaper, training pant, feminine hygiene article, adult incontinence article or wound care dressing. The absorbent article comprises a topsheet. The topsheet comprises or consists of a fibrous nonwoven layer arranged on a wearer facing side of the topsheet. The fibrous nonwoven layer is coated over a coated area on the wearer facing side of the topsheet with a coating composition. The coating composition comprises a lubricant agent comprising an alkoxylated diester selected from the group consisting of fatty ester lubricants.
ABSORBENT ARTICLE HAVING A LOTIONED TOPSHEET
The absorbent article of the invention has a liquid impervious backsheet and a liquid pervious topsheet joined to the backsheet. The topsheet has an inner surface oriented toward the interior of the absorbent article and an outer surface oriented toward the skin and hair of the wearer when the absorbent article is being worn and an absorbent core positioned between the topsheet and the backsheet. At least a portion of the topsheet outer surface comprises an effective amount of a lotion coating which is semi-solid or solid at 20 degrees C., the lotion coating comprising:
(i) from about 10 to about 95% of a substantially water free emollient having a plastic or fluid consistency at 20 degrees C. wherein the emollient contains 5% or less water, the emollient comprising a member selected from the group consisting of petroleum-based emollients, fatty acid ester emollients, alkyl ethoxylate emollients, and mixtures thereof;
(ii) from about 5 to about 90% of an agent capable of immobilizing the emollient on the outer surface of the topsheet, the immobilizing agent being miscible with the emollient, the immobilizing agent having a melting point of at least about 35 degrees C. wherein the immobilizing agent is selected from the group consisting of polyhydroxy fatty acid esters, polyhydroxy fatty acid amides, C14-C22 fatty alcohols, C14-C22 fatty acids, C14-C22 fatty alcohol ethoxylates with a degree of ethoxylation of 4 or less, and mixtures thereof.
ABSORBENT ARTICLE HAVING A LOTIONED TOPSHEET
The absorbent article of the invention has a liquid impervious backsheet and a liquid pervious topsheet joined to the backsheet. The topsheet has an inner surface oriented toward the interior of the absorbent article and an outer surface oriented toward the skin and hair of the wearer when the absorbent article is being worn and an absorbent core positioned between the topsheet and the backsheet. At least a portion of the topsheet outer surface comprises an effective amount of a lotion coating which is semi-solid or solid at 20 degrees C., the lotion coating comprising:
(i) from about 10 to about 95% of a substantially water free emollient having a plastic or fluid consistency at 20 degrees C. wherein the emollient contains 5% or less water, the emollient comprising a member selected from the group consisting of petroleum-based emollients, fatty acid ester emollients, alkyl ethoxylate emollients, and mixtures thereof;
(ii) from about 5 to about 90% of an agent capable of immobilizing the emollient on the outer surface of the topsheet, the immobilizing agent being miscible with the emollient, the immobilizing agent having a melting point of at least about 35 degrees C. wherein the immobilizing agent is selected from the group consisting of polyhydroxy fatty acid esters, polyhydroxy fatty acid amides, C14-C22 fatty alcohols, C14-C22 fatty acids, C14-C22 fatty alcohol ethoxylates with a degree of ethoxylation of 4 or less, and mixtures thereof.
ANTI-INFECTIVE AND ANTI-ADHESIVE WOUND DRESSING BASED ON NONSPECIFIC ADHESION TO BACTERIA
The present disclosure provides an anti-infective and anti-adhesive wound dressing based on nonspecific adhesion to bacteria, which includes a micron-sized porous membrane with polyolefin contained in its surface and does not contain any bactericide. According to the disclosure, through targeted selection of a material and surface structure of the porous membrane, nonspecific adhesion to the bacteria on the wound surface can be formed by good adaptability of its own surface energy and the structure of the porous membrane to surface energy of the bacteria, preventing the bacteria from penetrating into wound tissues and thus realizing the anti-infection for the bacteria and the anti-adhesion to the wound. Furthermore, no bactericide is required to be added, which not only reduces infection of the wound, but also weakens factors which are not conducive to wound healing, such as aggravation of inflammation caused by bacterial toxin released after bacterial rupture in traditional sterilization mechanisms.
POLYMER FILM AND ANTIADHESIVE MATERIAL USING THE SAME
A polymer film can be adjusted to movement or a fine uneven surface of a living body and has excellent ability to adhere to a biological tissue. The polymer film includes a block copolymer having a structure in which branched polyalkylene glycol and polyhydroxyalkanoic acid are bound to each other, wherein the polymer film has a film thickness of 10 to 1000 nm. The branched polyalkylene glycol has at least three terminal hydroxyl groups per molecule, the mass percentage of the branched polyalkylene glycol relative to the total mass of the block copolymer is 1% to 30%, and a value obtained by dividing the average molecular weight of polyhydroxyalkanoic acid in the block copolymer by X that is the number of terminal hydroxyl groups present per a single molecule of the branched polyalkylene glycol is 10000 to 30000.
POLYMER FILM AND ANTIADHESIVE MATERIAL USING THE SAME
A polymer film can be adjusted to movement or a fine uneven surface of a living body and has excellent ability to adhere to a biological tissue. The polymer film includes a block copolymer having a structure in which branched polyalkylene glycol and polyhydroxyalkanoic acid are bound to each other, wherein the polymer film has a film thickness of 10 to 1000 nm. The branched polyalkylene glycol has at least three terminal hydroxyl groups per molecule, the mass percentage of the branched polyalkylene glycol relative to the total mass of the block copolymer is 1% to 30%, and a value obtained by dividing the average molecular weight of polyhydroxyalkanoic acid in the block copolymer by X that is the number of terminal hydroxyl groups present per a single molecule of the branched polyalkylene glycol is 10000 to 30000.
Absorbent article
An object of the present disclosure is to provide an absorbent article without a sticky feel on the top sheet and with a smooth top sheet, not only when a large amount of menstrual blood has been absorbed, but even when a small amount of menstrual blood has been absorbed. The absorbent article of the present disclosure is as follows. An absorbent article comprising a liquid-permeable top sheet, a liquid-impermeable back sheet and an absorbent body between the liquid-permeable top sheet and liquid-impermeable back sheet, wherein the liquid-permeable top sheet comprises a blood slipping agent having a kinematic viscosity of 0.01 to 80 mm.sup.2/s at 40° C., a water holding percentage of 0.01 to 4.0 mass %, and a weight-average molecular weight of less than 1,000, on at least the projection in an excretory opening contact region.
Absorbent article
An object of the present disclosure is to provide an absorbent article without a sticky feel on the top sheet and with a smooth top sheet, not only when a large amount of menstrual blood has been absorbed, but even when a small amount of menstrual blood has been absorbed. The absorbent article of the present disclosure is as follows. An absorbent article comprising a liquid-permeable top sheet, a liquid-impermeable back sheet and an absorbent body between the liquid-permeable top sheet and liquid-impermeable back sheet, wherein the liquid-permeable top sheet comprises a blood slipping agent having a kinematic viscosity of 0.01 to 80 mm.sup.2/s at 40° C., a water holding percentage of 0.01 to 4.0 mass %, and a weight-average molecular weight of less than 1,000, on at least the projection in an excretory opening contact region.
Absorbent article having a lotioned topsheet
The absorbent article of the invention has a liquid impervious backsheet and a liquid pervious topsheet joined to the backsheet. The topsheet has an inner surface oriented toward the interior of the absorbent article and an outer surface oriented toward the skin and hair of the wearer when the absorbent article is being worn and an absorbent core positioned between the topsheet and the backsheet. At least a portion of the topsheet outer surface comprises an effective amount of a lotion coating which is semi-solid or solid at 20 degrees C., the lotion coating comprising: (i) from about 10 to about 95% of a substantially water free emollient having a plastic or fluid consistency at 20 degrees C. wherein the emollient contains 5% or less water, the emollient comprising a member selected from the group consisting of petroleum-based emollients, fatty acid ester emollients, alkyl ethoxylate emollients, and mixtures thereof; (ii) from about 5 to about 90% of an agent capable of immobilizing the emollient on the outer surface of the topsheet, the immobilizing agent being miscible with the emollient, the immobilizing agent having a melting point of at least about 35 degrees C. wherein the immobilizing agent is selected from the group consisting of polyhydroxy fatty acid esters, polyhydroxy fatty acid amides, C14-C22 fatty alcohols, C14-C22 fatty acids, C14-C22 fatty alcohol ethoxylates with a degree of ethoxylation of 4 or less, and mixtures thereof.