B32B2262/0292

FILM AND WATER STOPPING TAPE

Provided is a film and a water stopping tape that realize long-lasting water stopping properties. The film includes an outermost layer containing a water-absorbent polymer having a water absorbency of 5 g/g to 100 g/g that is represented by a ratio of a mass of a sample having been immersed in water for 3 hours to a mass of the sample not yet being immersed in water a permeable layer, and a substrate layer in this order, and the water stopping tape includes the film.

LAMINATE SHEET, SANITARY MATERIAL, MEDICAL MATERIAL, AND METHOD FOR MANUFACTURING LAMINATE SHEET
20230046949 · 2023-02-16 · ·

A laminate sheet includes a water-vapor permeable polyurethane film having a hard segment phase and a first spunbond nonwoven fabric disposed at one side in a thickness direction of the water-vapor permeable polyurethane film. The first spunbond nonwoven fabric contains stretchable fibers containing a thermoplastic polyurethane and non-stretchable fibers containing a polyolefin. The melting point of the hard segment phase is 65□ or more and 140□ or less.

Synthetic resin skin material composite and method of producing synthetic resin skin material composite

A synthetic resin skin material composite, including: a urethane resin skin material including a urethane resin skin layer provided at one surface of a substrate; and a cushion layer that is placed at a surface on an opposite side of the substrate from the surface of the urethane resin skin material at which the urethane resin skin layer is provided; in which the urethane resin skin material has recesses at a side of the urethane resin skin layer, and each of the recesses has a depth in a thickness direction of the synthetic resin skin material composite, such that the recesses extend from the urethane resin skin layer into the cushion layer beyond an interface between the urethane resin skin material and the cushion layer that is present in a region without a recess, as well as a method of producing a synthetic resin skin material composite.

NON-WOVEN PROTECTIVE CLOTHING AGAINST BLOOD AND VIRUSES

A non-woven protective clothing against blood and viruses, which is composed from: a non-woven fabric layer, which has two surfaces; and a high waterproof moisture-permeable layer, which is a porous film that is laminated to one of the surfaces of the non-woven fabric layer; and an elastic pore filling layer, which is a hydrophilic polyurethane. The elastic pore filling layer is coated or printed onto the surface of the high waterproof moisture-permeable layer, and the thickness of the elastic pore filling layer is thinner than that of the high waterproof moisture-permeable layer. The synthetic blood permeability of the non-woven protective clothing against blood and viruses can resist a pressure of 2.0 psi for one minute, and the Phi-X174 bacteriophage penetrability thereof can resist a pressure of 2.0 psi for one minute.

ULTRA-LIGHT NANOTECHNOLOGY BREATHABLE GOWNS AND METHOD OF MAKING SAME
20230040653 · 2023-02-09 ·

A protective garment is constructed with a fibrous material. The fibrous material comprises a first nonwoven layer, a second nonwoven layer, and a nanofiber layer laminated between the first nonwoven layer and the second nonwoven layer. The fibrous material has a mean flow pore size greater than or equal to about 0.02 micron and less than or equal to about 0.5 microns, and a water vapor transmission rate greater than or equal to about 10000 g/m.sup.2/day and less than or equal to about 100000 g/m.sup.2/day. In a method of making a fibrous layer, a first nonwoven layer and a nanofiber layer are provided. A polyurethane reactive resin is applied to the first nonwoven layer in an amount of 2 to 30 g/m.sup.2. The nanofiber layer is then laminated to the first nonwoven layer applied with the polyurethane reactive resin and pressed to form the fibrous layer.

FILM AND WATER STOPPING TAPE

Provided are a film and a water stopping tape that realize long-lasting water stopping properties. The film includes an outermost layer that contains a water-absorbent polymer and a fiber assembly and a substrate layer in this order, in which a degree of out-of-plane swelling of the outermost layer is higher than a degree of in-plane swelling of the outermost layer, and the water stopping tape includes the film.

Artificial leather and method for producing the same

The present invention relates to an artificial leather and a method for producing the same. The artificial leather includes a substrate, a thermoplastic polyurethane fiber adhesive layer, a thermoplastic polyurethane fiber layer, a paste layer, and a surface layer. The paste layer has a thermosetting paste or a high solid-content paste, and the paste has a specific adhesive temperature. A bonding can be performed at low temperature in the method for producing the same, and the artificial leather made by the method for producing the same has excellent hand feeling and/or smoothness.

Waistbands having absorbent, wicking, expandable bandrolls and garments with same

A waistband for a garment includes a bandroll having an absorption layer and a wicking layer. The wicking layer controls stretch properties of the absorption layer. The waistband comprises a second material and wherein a shrinkage of a material substrate of the bandroll substantially matches a shrinkage of the second material.

Highly-filled polyurethane composites with fiber reinforcement

Composite panels and methods of preparation are described herein. In some embodiments, the composite panel can include a first fiber reinforcement, a polyurethane composite having a first surface and a second surface opposite the first surface, wherein the first surface is in contact with the first fiber reinforcement; and a cementitious material adjacent the first fiber reinforcement opposite the polyurethane composite. The polyurethane composite can be formed from (i) one or more isocyanates selected from the group consisting of diisocyanates, polyisocyanates, and mixtures thereof, (ii) one or more polyols, and (iii) a particulate filler. The fiber reinforcement can be formed from a woven or non-woven material, such as glass fibers. The composite panel can further include a material, such as a second fiber reinforcement and a cementitious layer, in contact with the second surface of the polyurethane composite. Articles comprising the composite panels are also disclosed.

Medical protective clothing materials

Protective clothing materials and related methods and garments are provided. In some embodiments, a protective clothing material may comprise a fibrous layer that serves as a barrier to certain fluids (e.g., bodily fluids, water) and microbes. The impermeability of the fibrous layer may be due, at least in part, to the structural uniformity and/or relatively small pore size of the fibrous layer. In some embodiments, the fibrous layer may have a relatively high air permeability that imparts beneficial properties (e.g., relatively high air flow, breathability) to the protective clothing material without adversely affecting its protection rating. In certain embodiments, the protective clothing material may also comprise one or more coarse nonwoven webs that impart beneficial properties (e.g., splash resistance) to the protective clothing material. The protective clothing materials, described herein, may be particularly useful for a wide variety of applications, including the formation of AAMI level 4 protective garments.