摘要:
The present invention relates to absorbent articles comprising surface cross-linked superabsorbent polymer (SAP) particles, the SAP particles being made by a method using UV irradiation. The method is carried out in a so-called drum reactor, which comprises a hollow drum and an irradiation source. The drum has a longitudinal axis and a cross-section. Superabsorbent polymer particles are fed into the drum and are irradiated while they move within the drum, which is rotated around its longitudinal axis. The irradiation source is provided such that the radiation emitted by the irradiation source is able to reach superabsorbent polymer particles within said drum. The irradiation source for use in the method of the present invention is able to emit UV radiation of a wavelength between 100 nm and 200 nm.
摘要:
The present invention relates to a method of surface cross-linking superabsorbent polymer particles having a relatively high degree of neutralization. Brønsted acids are selectively applied onto the surface of the superabsorbent polymer particles to selectively facilitate a relatively high number of protonated carboxyl groups at the surface of the superabsorbent polymer particles while the relatively high degree of neutralization in the core of the superabsorbent polymer particles remains substantially unaffected.
摘要:
The present invention relates to superabsorbent polymer particles with improved surface cross-linking and their use in absorbent articles. The superabsorbent polymer particles of the present invention comprise polymer chain segments, wherein at least a part of the polymer chain segments are covalently cross-linked to each other and wherein at least a part of the cross-links comprise the reaction product of cross-linking molecules having at least two C=C double bonds and further comprise the reaction product of radical former molecules. These cross-links are present at surfaces of the superabsorbent polymer particles. Moreover, theinvention relates a method for making these superabsorbent polymer particles.
摘要:
A composition for providing a film on keratin fibres, the composition comprising: a film-forming aminosilicone polymer; a silicone resin; an ether of a water-soluble polyhydric alcohol; a thickening system comprising a deposition enhancer and a thickening polymer; one or more coloured materials or one or more pigments; water; 2-phenoxyethanol and/or phenylmethanol; wherein the composition is substantially free of esters of parahydroxybenzoic acid; and wherein the composition is substantially free of isothiazolinone compounds. Also, associated methods, kits and uses.
摘要:
Method of forming a polymer inside the hair shaft. The polymer changes the mechanical properties of the hair, which provides styling advantages such as improved manageability. The method comprises applying an activating composition to the hair, wherein the activating composition comprises from about 0.5% to about 20% salt of thiosulfonic acid. Also related processes, uses, kits and regimens.
摘要:
A method for chemically modifying the internal region of a hair shaft. The method comprises applying an oxidising formulation to the hair; de-wetting the hair; applying a monomer composition to the hair, wherein the monomer composition comprises an ethylenic monomer having a molecular weight of 500 g/mole or less and a cosmetically acceptable carrier. Also a kit which comprises: application instructions comprising the method; and the monomer composition.
摘要:
The present invention relates to a material for acquisition of liquids comprising individualized, crosslinked cellulosic fibers having an effective amount of a polymeric acid crosslinking agent (such as polyacrylic acid polymers) reacted with the fibers in intra-fiber crosslink ester bond form. The material further comprises at least one basic substance, selected from basic polymers (such as polyallylamine PAA or crosslinked quaternary ammonium hydroxide divinylbenzene / styrene copolymer or Amberlyst A-260H). The invention also relates to disposable absorbent articles, such as diapers, containing this material. The material can be used in a method of reducing the electrolyte concentration of aqueous mediums containing electrolytes, such as urine.
摘要:
A liquid acquisition material for use in an absorbent article, said material comprising at least first fibers and second fibers, wherein said first fibers are chemically cross-linked cellulose fibers and said second fibers are selected from the group consisting of : polyethylene, polypropylene, polyester, rayon, lyocell, and mixtures thereof, wherein said liquid acquisition material has a total dry weight and the first fibers have a first dry weight, and the second fibers have a second dry weight, wherein the first dry weight is from 30 to 95 percent of said total dry weight and the second dry weight is from 5 to 70 percent of the total dry weight.
摘要:
The present invention relates to absorbent articles comprising superabsorbent polymer (SAP) particles, the SAP particles being made by a method of surface cross-linking superabsorbent polymer particles using UV irradiation. The method is carried out in a so-called drum reactor, which comprises a hollow drum and an irradiation source. The drum has a longitudinal axis and a cross-section. Radical former molecules are applied on the surface of superabsorbent polymer particles. These superabsorbent polymer particles are fed into the drum and are irradiated while they move within the drum, which is rotated around its longitudinal axis. The irradiation source is provided such that the radiation emitted by the irradiation source is able to reach superabsorbent polymer particles within said drum. The irradiation source for use in the method of the present invention is able to emit UV radiation of a wavelength between 201 nm and 400 nm.
摘要:
The present invention relates to superabsorbent polymer particles with improved surface cross-linking and improved hydrophilicity and their use in absorbent articles. Superabsorbent polymer particles of the invention consist of cross-linked poly(meth)acrylic acid and salts thereof. The polymer chains comprised by the superab-sorbent polymer particles are cross-linked to each other through direct covalent bonds and comprise alcoholic hydroxyl groups. Moreover, the invention relates to a method for surface cross-linking superabsorbent polymer particles using vacuum UV irradiation.