The present invention provides polyurethanes including a reaction product of components including: (a) an isocyanate functional urethane prepolymer including a reaction product of components including: (i) about 1 equivalent of at least one polyisocyanate; and (ii) about 0.01 to about 0.5 equivalent of at least one polyol having at least 3 hydroxyl groups; and (b) about 0.1 to about 1.0 equivalent of at least one polyol having at least 3 hydroxyl groups; compositions, coatings and articles made therefrom and methods of making the same.

Provided are materials that include one or more cycloaliphatic polyamides integrated into or coated onto one or more structural fibers such as polyethylene fibers, aramid-fibers, glass fibers or carbon fibers. The resulting materials may be incorporated into composite articles suitable for use as protective equipment or structural layers.

Described herein are optically transparent and semipermeable windows composed of at least one layer of an amorphous crosslinked fluorinated copolymer. Also disclosed are a process and apparatus for three-dimensional continuous liquid interface production (CLIP) printing using the windows described herein. The amorphous crosslinked fluorinated copolymers have improved mechanical properties, thereby reducing the susceptibility of the window to brittle failures such as cracking and crack propagation. The gas permeable windows have superior durability and reliability compared with other available structures and compositions.

Photochromic article having first and second opposed major surfaces comprising a first, transparent layer having first and second opposed major surfaces, the first layer comprising thermoplastic, a second, transparent layer having first and second opposed major surfaces, the second layer comprising photochromic dye and amorphous copolyester, wherein the first major surface of the second layer is adjacent to the second major surface of the first layer, and a third layer having first and second opposed major surfaces, wherein the first major surface of the third layer is adjacent to the second major surface of the second layer. Embodiments of photochromic article described herein are useful, for example in eyewear, window films, security films, decorative films, electronic devices (i.e., having a display with a photochromic article).

The present invention relates to filled polymeric materials including a polymer and a filler distributed within the polymer, and to light weight composites which comprise at least a pair of metallic layers and a polymeric layer interposed between the pair of metallic layers, the polymeric layer containing the filled polymeric material. The composite materials of the present invention may be formed using conventional stamping equipment at ambient temperatures. Composite materials of the present invention may also be capable of being welded to other metal materials. The composite materials may be employed in an automotive part. Preferred composite materials include one or any combination of the following features: metallic fibers, ribbon fibers; or a polyolefin.

Cold sintering of materials includes using a process of combining at least one inorganic compound, e.g., ceramic, in particle form with a solvent that can partially solubilize the inorganic compound to form a mixture; and applying pressure and a low temperature to the mixture to evaporate the solvent and densify the at least one inorganic compound to form sintered materials.

Provided are a multilayered article and a multilayered container comprehensively excelling in oxygen barrier properties, delamination resistance, and transparency. The multilayered article includes a layer containing a polyester resin as a main component and a layer containing a polyamide resin as a main component; wherein the polyamide resin included in the layer containing a polyamide resin as a main component includes from 90 to 60 parts by mass of a polyamide resin (B) per 10 to 40 parts by mass of a polyamide resin (A). The polyamide resin (A) is an aliphatic polyamide resin. The polyamide resin (B) includes a structural unit derived from a diamine and a structural unit derived from a dicarboxylic acid, 70 mol % or more of the structural unit derived from a diamine being derived from xylylenediamine, and of the structural unit derived from a dicarboxylic acid, from 30 to 65 mol % being derived from an am-linear aliphatic dicarboxylic acid having from 4 to 20 carbons, and from 70 to 35 mol % being derived from isophthalic acid, a total of which does not exceed 100 mol %.

The present invention provides a polyester-based film for keeping freshness, comprising a polyester-based resin layer comprising ethylene terephthalate as a main component, wherein the polyester-based film satisfies the requirements (1) to (4); that can extend the shelf life of the contents such as fruits and vegetables when using as a packaging bag, increase a commodity value, and re-close even after the packaging bag opened. (1) the film has an O.sub.2-transmission rate of 50 [cc/(m.sup.2.Math.d.Math.atm)] or more and 1000 [cc/(m.sup.2.Math.d.Math.atm)] or less when measured at a temperature of 23° C. and a relative humidity of 65% RH, (2) the film has a CO.sub.2-transmission rate of 200 [cc/(m.sup.2.Math.d.Math.atm)] or more and 5000 [cc/(m.sup.2.Math.d.Math.atm)] or less when measured at a temperature of 23° C., (3) the film has a water vapor transmission rate of 20 [g/(m.sup.2.Math.d)] or more and 400 [g/(m.sup.2.Math.d)] or less when measured at a temperature of 40° C. and a relative humidity of 90% RH, and (4) the film has an angle after folding the film of 20° or more and 80° or less.

The metal/resin composite structure (106) of the present invention includes a metal member (103), a resin member (105) which is integrated to the metal member (103) and is formed of a resin composition containing a thermoplastic resin, and an inorganic particle layer (107) which is provided between the metal member (103) and the resin member (105) and is formed of inorganic particles. Moreover, the metal member (103) has a fine uneven shape (104) at least on a surface of an integrating part with the resin member (105), the inorganic particle layer (107) is formed to cover a part or an entirety of the fine uneven shape (104) of the metal member (103), and the metal member (103) and the resin member (105) are integrated to each other through the inorganic particle layer (107).

The present invention refers to a polymeric film comprising odor barrier material for and being able to packing malodorous waste. The film comprises at least 95% biodegradable materials.