D06N3/0038

AIRLAID COMPOSITE SHEET MATERIAL
20220178059 · 2022-06-09 ·

Provided is a composite sheet that is particularly useful as an AQDL component in absorbent articles. The composite sheet includes a fluid acquisition component and an airlaid component. The airlaid component may include one or more airlaid layers that are successively formed overlying each other. Each of the airlaid layers are adjacent to, and in direct contact with, immediately adjacent layers of the airlaid component so that adjacent layers are in fluid communication with respect to each other. The fluid acquisition component includes a nonwoven fabric comprising a carded nonwoven fabric comprised of a plurality of staple fibers that are air through bonded to each other to form a coherent nonwoven fabric. The airlaid layer(s) include a blend of cellulose and non-cellulose staple fibers. The staple fibers may be bicomponent fibers having a polyethyelene sheath and a polypropylene or polyethylene terephthalate core, and mixtures of such fibers.

FLAME RETARDANT VAPOR RETARDING MEMBRANES

The present disclosure relates generally to flame retarding building materials and methods for making them. More particularly, the present disclosure relates to flame retarding building materials that have both flame retardant character and desirable water vapor permeability values. In one embodiment, the disclosure provides a flame retardant vapor retarding membranes comprising: a building material substrate sheet having a melt viscosity of about 1 Pa.Math.s to about 100,000 Pa.Math.s at about 300° C. at 1 rad/s; and a polymeric coating layer disposed on the building material substrate layer, wherein the coating layer has a melt viscosity of about 1 Pa.Math.s to about 100,000 Pa.Math.s at about 300° C. at 1 rad/s.

NONWOVEN COMPOSITE STRUCTURE WITH EXCELLENT WATER VAPOUR PERMEABILITY

The present invention relates to a composite comprising a nonwoven fabric being the substrate of the composite, wherein the nonwoven fabric comprises a polymer (A) selected from the group consisting of polyethylene, polypropylene, polyethylene terephthalate and polyamide; and a coating layer, wherein the coating layer comprises a polymer (B), wherein said polymer is an ethylene copolymer, preferably a polar ethylene copolymer; whereby the coating layer overlays at least one surface of the nonwoven fabric; and whereby the composite has a water vapor transmission rate (WTVR) according to ASTM E-96 ((water cup method) at 38° C. at 50% RH at the outside of the sample and 100% RH at the inside of the samples) of more than 50 g/[m.sup.2/24 h], preferably of more than 100 g/[m.sup.2/24 h].

POSITIVELY CHARGED FILTER MATERIAL WITH ABILITY FOR REMOVING CHARGED PARTICLES EFFICIENTLY, AND METHOD FOR PRODUCING SAME
20230302386 · 2023-09-28 · ·

The present invention relates to a positively charged filter material with excellent ability for removing charged particles efficiently, and a method for producing the same, and more specifically to a positively charged filter material having the ability to selectively remove efficiently, in water, negatively charged organic/inorganic particles, heavy metal ions and pathogenic microorganisms, and a method for producing the same.

FLAME RETARDANT MATERIALS

The invention provides a flame retardant material comprising a substrate, an optionally corona-treated coating on the substrate, the coating comprising a polyolefin composition comprising a) an ethylene based plastomer with a density in the range of 0.857 to 0.915 g/cm.sup.3 and an MFR.sub.2 in the range 0.5-30 g/10 min; b) a propylene based plastomer with a density in the range of 0.860 to 0.910 g/cm.sup.3 and an MFR.sub.2 in the range 0.01-30 g/10 min; and c) a flame retardant, a primer layer on top of the coating and a lacquer topcoat.

MEDICAL IMPLANT COMPONENT COMPRISING A COMPOSITE BIOTEXTILE AND METHOD OF MAKING

Disclosed herein is a medical implant component comprising a composite biotextile, which biotextile comprises i) a polyolefin fibrous construct comprising at least one strand with titer of 2-250 dtex, tensile strength of at least 10 cN/dtex and comprising high molar mass polyolefin fibers and ii) a coating comprising a biocompatible and biostable polyurethane elastomer comprising a polysiloxane segment and/or having one or more hydrophobic endgroups, wherein the polyurethane coating is present on at least part of the surface of the biotextile and in an amount of 2.5-90 mass % based on composite biotextile. Such composite biotextile, like a partly coated woven fabric, shows an advantageous combination of good biocompatibility, especially hemocompatibility, high strength and pliability, and laser cuttability; allowing to make pieces of fabric having well-defined regular edges that have high suture retention strength. The invention also provides a method of making said composite biotextile. Further embodiments concern the use of such biotextile in or as medical implant component for an implantable medical device and the use of such medical implant component in making an implantable medical device; such as in orthopedic applications and cardiovascular implants. Other embodiments include such medical devices or implants comprising said medical implant component.

ANTISLIP FLEXIBLE MATERIALS AND METHODS FOR THEIR MAKING AND USE
20220008954 · 2022-01-13 ·

A method for forming an antislip material. A flexible thermoplastic carrier is provided. A hot release surface is provided. Provided is a first layer of discrete thermoplastic particles, sitting on the hot release surface. The discrete particles are above their softening temperatures, providing in the first layer a tackiness. The method includes contacting the carrier with the tacky first layer for sticking the first layer to the carrier, and thereafter removing the carrier, and therewith the tacky first layer stuck to the carrier, from the release surface. Thereby the carrier is provided with a hot, preferably discontinuous and/or elastomeric antislip coating. With a heat energy of the hot coating a bond is formed between the carrier and the coating. The removing of the carrier includes pulling the carrier out of the contact with a pulling-out force. The temperature of the hot release surface is above the melting temperature of the carrier. The carrier would be spoiled, if heated completely to the temperature of the release surface and simultaneously pulled with the pulling-out force. Therefore the contacting time is kept shorter than a minimum time required by a heat of the hot release surface for spoiling the carrier. Flat-topped roughening projections can be included in the antislip coating.

POLYOLEFIN-BASED SYNTHETIC LEATHER AND ARTICLES FORMED THEREFROM

A variety of plates for footwear are provided including a polyolefin resin. Sole structures and articles of footwear formed therefrom are also provided. Methods of making the polyolefin resin compositions, plates, sole structures, and articles of footwear are also provided. In some aspects, the polyolefin resin composition includes an effective amount of a polymeric resin modifier. The effective amount can be an amount effective to allow the resin composition to pass a flex test, and in particular to pass a flex test without significant change in abrasion loss. In some aspects, the resin composition also includes a clarifying agent to improve optical clarity of the plate. In some aspects, the plates include a textile disposed on one or both of a first side and the second side of the plate. The textile can provide for improved bonding of the plate to other components such as a chassis or an upper.

Method of conserving irrigation water using a woven fabric substrate
11771017 · 2023-10-03 ·

A woven fabric formed of fabric fibers or threads coated with a hydrogel, wherein said hydrogel is not crosslinked or is partially crosslinked to the fabric fibers or thread, wherein the hydrogel has a number of excess reactive molecules that are available for a reaction with one or more molecules solvated in an aqueous solution, and wherein the reactive molecules of the hydrogel can reversibly bond with the molecules solvated in an aqueous solution, such that the reactive molecules of the hydrogel attract the molecules solvated in aqueous solution when the hydrogel coated fabric substrate is exposed to an aqueous solution.

Antislip flexible materials and methods for their making and use

A method for forming an antislip material. A flexible thermoplastic carrier is provided. A hot release surface is provided. Provided is a first layer of discrete thermoplastic particles, sifting on the hot release surface. The discrete particles are above their softening temperatures, providing in the first layer a tackiness. The method includes contacting the carrier with the tacky first layer for sticking the first layer to the carrier, and thereafter removing the carrier, and therewith the tacky first layer stuck to the carrier, from the release surface. Thereby the carrier is provided with a hot, preferably discontinuous and/or elastomeric antislip coating. With a heat energy of the hot coating a bond is formed between the carrier and the coating. The removing of the carrier includes pulling the carrier out of the contact with a pulling-out force. The temperature of the hot release surface is above the melting temperature of the carrier. The carrier would be spoiled, if heated completely to the temperature of the release surface and simultaneously pulled with the pulling-out force. Therefore the contacting time is kept shorter than a minimum time required by a heat of the hot release surface for spoiling the carrier. Flat-topped roughening projections can be included in the antislip coating.