Patent classifications
A61L15/60
Method for preparing super absorbent polymer
A method for preparing a super absorbent polymer and a superabsorbent polymer prepared from the same are disclosed herein. In some embodiments, a method includes mixing super absorbent polymer particles, water and an additive form a hydrated super absorbent polymer, wherein the super absorbent polymer particles comprise a base polymer powder including a cross-linked polymer polymerized from a water-soluble ethylenically unsaturated monomer having an acidic group of which at least a part is neutralized, and a surface cross-linked layer formed on the base polymer powder, wherein the surface cross-linked layer is formed by further cross-linking the cross-linked polymer, and wherein the additive including a polyoxyalkylene aliphatic hydrocarbon ether carboxylic acid. The method can appropriately control the water content of the super absorbent polymer by water-addition or the like to suppress crushing or the like during transfer, and also can suppress deterioration of physical properties.
Method for preparing super absorbent polymer
A method for preparing a super absorbent polymer and a superabsorbent polymer prepared from the same are disclosed herein. In some embodiments, a method includes mixing super absorbent polymer particles, water and an additive form a hydrated super absorbent polymer, wherein the super absorbent polymer particles comprise a base polymer powder including a cross-linked polymer polymerized from a water-soluble ethylenically unsaturated monomer having an acidic group of which at least a part is neutralized, and a surface cross-linked layer formed on the base polymer powder, wherein the surface cross-linked layer is formed by further cross-linking the cross-linked polymer, and wherein the additive including a polyoxyalkylene aliphatic hydrocarbon ether carboxylic acid. The method can appropriately control the water content of the super absorbent polymer by water-addition or the like to suppress crushing or the like during transfer, and also can suppress deterioration of physical properties.
Method for producing medical device
A method of producing a medical device having a substrate and a hydrophilic polymer layer, including the steps of: pretreating the substrate by placing the substrate in an alkali solution and heating the substrate at a temperature ranging from 50° C. to 100° C.; and heating a solution containing the pretreated substrate, a hydrophilic polymer having an acidic group and a hydroxyalkyl group, and an organic acid at a temperature ranging from 50° C. to 100° C. Provided is a simple method of producing a medical device imparted with hydrophilicity excellent in durability.
WOUND DRESSING COMPRISING A COMBINATION OF HYDROGEL AND HONEY, METHOD OF PREPARATION AND USES THEREOF
The present disclosure provides a wound dressing composition comprising cross-linked hydrogel scaffold and embedded therein anti-bacterially active honey, said activity being determined by the detection of hydrogen peroxide production rate by said wound dressing; said wound dressing further comprising at least one of a photo-initiator and/or at least one UV cross linker, the total amount of said photo-initiator and/or UV cross linker is equal or less than 0.2% w/w out of the total weight of the wound dressing. Also disclosed herein is a method of preparing the wound dressing and methods of using the same with respect to wounds, the method of preparation comprises mixing a hydrogel forming mixture comprising hydrogel forming monomer or monomers, honey and at least one photo-initiator and/or at least one UV cross-liker to form a homogenous mixture; and subjecting the homogenous mixture to UV irradiation until said homogenous mixture solidifies.
WOUND DRESSING COMPRISING A COMBINATION OF HYDROGEL AND HONEY, METHOD OF PREPARATION AND USES THEREOF
The present disclosure provides a wound dressing composition comprising cross-linked hydrogel scaffold and embedded therein anti-bacterially active honey, said activity being determined by the detection of hydrogen peroxide production rate by said wound dressing; said wound dressing further comprising at least one of a photo-initiator and/or at least one UV cross linker, the total amount of said photo-initiator and/or UV cross linker is equal or less than 0.2% w/w out of the total weight of the wound dressing. Also disclosed herein is a method of preparing the wound dressing and methods of using the same with respect to wounds, the method of preparation comprises mixing a hydrogel forming mixture comprising hydrogel forming monomer or monomers, honey and at least one photo-initiator and/or at least one UV cross-liker to form a homogenous mixture; and subjecting the homogenous mixture to UV irradiation until said homogenous mixture solidifies.
INTERPENETRATING NETWORK HYDROGELS WITH INDEPENDENTLY TUNABLE STIFFNESS
Interpenetrating network hydrogels with independently tunable stiffness enhance tissue regeneration and wound healing.
INTERPENETRATING NETWORK HYDROGELS WITH INDEPENDENTLY TUNABLE STIFFNESS
Interpenetrating network hydrogels with independently tunable stiffness enhance tissue regeneration and wound healing.
SWELLABLE ANTIMICROBIAL FIBRE
A swellable polymer based fibre and method of preparing the same for use as, for example, a wound dressing. The fibres may be formed from an aqueous dope solution containing a primary polymer and povidone-iodine (PVP-I). The aqueous dope solution is spun or extruded into a coagulation bath via a multi-hole spinneret head to form a multifilament fibre.
SWELLABLE ANTIMICROBIAL FIBRE
A swellable polymer based fibre and method of preparing the same for use as, for example, a wound dressing. The fibres may be formed from an aqueous dope solution containing a primary polymer and povidone-iodine (PVP-I). The aqueous dope solution is spun or extruded into a coagulation bath via a multi-hole spinneret head to form a multifilament fibre.
CROSSLINKED POLYMER COMPOUND AND METHOD FOR PRODUCING SAME, ABSORBENT ARTICLE, DISPOSABLE DIAPER, SANITARY ARTICLE, TREATMENT CONTAINER, AND TREATMENT METHOD
The cross-linked polymer compound according to the present invention includes skeleton units of Formula (1)-(2),
##STR00001## wherein R.sup.1 is one or more selected from hydrogen, an alkyl group, a hydroxy group, an amino group, a mercapto group, a substituted carbonyl group, and any alkyl group having, as a substituent, one or more selected from a hydroxy group, an amino group, a mercapto group, and a substituted carbonyl group; X is one or more selected from —COO.sup.−, —SO.sub.3.sup.−, and —P(═O)(O.sup.−).sub.2; and Y is one or more selected from Li.sup.+, Na.sup.+, and K.sup.+, and
##STR00002## wherein R.sup.2 are each independently one or more selected from hydrogen, an alkyl group, a hydroxy group, an amino group, a mercapto group, a substituted carbonyl group, and any alkyl group having, as a substituent, one or more selected from a hydroxy group, an amino group, a mercapto group, and a substituted carbonyl group.