A laminate includes a substrate, a self-healing layer on the substrate and having a thickness of greater than or equal to about 50 micrometers, a protective layer between the substrate and the self-healing layer, and a surface layer on the self-healing layer and having a thickness of about 20 nanometers to about 300 nanometers, wherein the self-healing layer has a first elastic modulus and the protective layer has a second elastic modulus, wherein the second elastic modulus is about 1.2 times to about 50 times greater than the first elastic modulus, and wherein the surface layer has a friction coefficient of less than or equal to about 1.

Provided are cementitious panel that include a swellable material within a core layer, a dense layer, and/or a sheet of facing material that make up a cementitious panel, as well as methods of manufacturing such cementitious panels that include a swellable material and methods of providing a moisture or water barrier in a cementitious panel.

In an embodiment, an aircraft includes a fuselage; a propulsion system powered by a fuel; and a fuel cell configured to store the fuel, the fuel cell including an inner layer configured to contact the fuel; an outer layer; and a self-sealing fabric structure formed from ultra-high molecular weight polyethylene (UHMWPE), the self-sealing fabric structure being between the inner layer and the outer layer, the self-sealing fabric structure being configured to self-seal a hole formed in the inner layer and the outer layer by a projectile.

A liquid containment cell includes an inner layer configured to contain a liquid, an outer layer, and a multilayer self-sealing structure disposed between the inner layer and the outer layer, where the multilayer self-sealing structure includes a plurality of sealing liner layers and further includes at least one slip layer disposed between adjacent sealing liner layers of the plurality of sealing liner layers. The at least one slip layer includes a polyethylene (PE) material, and the at least one slip layer is configured to permit at least one sealing liner layer of the plurality of sealing liner layers to move at least partially into a hole created by a projectile.

A pipe-wrapping material or compound, comprising a thermoplastic blend, wherein the thermoplastic blend includes at least one isobutylene-isoprene copolymer; at least one multi-arm polymer based on ethylene/propylene; at least one ethylene copolymer; and at least one polybutene polymer; at least one filler; at least paraffinic oil; and at least one biocide, wherein the at least one biocide is formulated to be effective against anaerobic bacteria, and wherein the anaerobic bacteria include sulfate-reducing bacteria.

The photochromic helmet visor includes a transparent piece, an adhesive layer attached to the transparent piece, a flexible base layer attached to the adhesive layer, a self-repairing layer attached to the flexible base layer, and a number of photochromic elements integrated with the flexible base layer or the self-repairing layer. The self-repairing layer includes a. PU layer and a. Siloxane layer attached to the PU layer. The photochromic elements are integrated with the flexible base layer or the self-repairing layer. The flexible base layer is made of PU, TPU, PVC, or PET, and may be tightly and smoothly joined to the transparent piece along with the adhesive layer. The self-repairing layer allows self-repairing to scratches or abrasions under a high temperature, thereby preventing the malfunction of the photochromic elements out of wear and usage and the resulted constant replacement, and enhancing the visor's durability.

Present invention teaches a self-mending cutting deck made up of a PC center board, sandwiched by a TPU upper and a TPU lower board, glued together using TPU glue. The TPU material has good resilience to the cuts made and will greatly reduce the cut marks, tiny grooves that are seen on other cutting decks. The specific hardness level of 90 degrees chosen provides long useful life without the warping problem faced by other existing products.

For a flexible, optically clear display stack, an adhesive, a system, and a method are provided. The adhesive is formed of polymer chains, at least a portion of which are cross-linked, a non-volatile diluent having a volume % in the range of between about 40 and 95, and is characterized with a low shear modulus of less than 10 kPa. The system is formed by at least first and second optically clear thin films with the adhesive disposed between the first and second thin films. The method includes the steps to form the system.

A method of fabricating a composite material, the method comprises the steps of a) providing a first layer of a fibre reinforced polymer, preferably a thermoset FRP, b) providing an array of thermoplastic islands across at least a proportion of a major surface of the first layer, c) providing a second layer of a fibre reinforced polymer, preferably a thermoset FRP, d) laying the second layer over at least some of the islands, and e) securing the first and second layers together. There is also disclosed a composite which comprises a first layer of a fibre reinforced polymer and a second layer of a fibre reinforced polymer, between which is an intervening layer comprising an array of thermoplastic islands.

A composite which comprises a first layer of a fibre reinforced polymer and a second layer of a fibre reinforced polymer, between which is an intervening layer comprising an array of thermoplastic islands.