Multilayer polymer sheets are provided, as well as related methods, systems, and appliances.

An electronic device may have optical components that each have first and second transparent layers such as first and second glass layers. The glass layers may have outer surfaces that face away from each other and inner surfaces that face towards each other. A polymer layer is formed between the inner surfaces of the glass layers. Along the periphery of each optical component, a hermetic seal is formed to protect the polymer material of the polymer layer. The seal may have a moisture barrier layer that is attached to the first and second glass layers. The moisture barrier layer may be supported by an elastomeric buffer member. The moisture barrier layer may be formed from metal film or a polymer layer or other substrate that is coated with a moisture-impermeable coating. The moisture-impermeable coating may be formed from one or more thin-film metal layers and/or one more thin-film dielectric layers.

Multilayer polymer sheets are provided, as well as related methods, systems, and appliances.

The present invention relates to multilayer films used to protect a surface, in particular, to such films used to protect surfaces of articles e.g., mobile electronics display protections, smartphones, tablets), industrial touch screens (e.g. machine interfaces), UV stable surfaces and glass protections for machine housings and cockpits (e.g. caterpillars, dumpers), etc.), and, more particularly, to such a multilayer protective film backed by a silicone-based pressure sensitive adhesive (PSA) and having either an aliphatic polyurethane layer or an aliphatic thermoplastic polyurethane layer on top of an aliphatic thermoplastic polyurethane layer, where the two aliphatic polyurethane layers have different physical and/or chemical properties. The present invention also relates to an article that is protected by the multilayer film as well as a method for making the multilayer protective film.

Multilayer polymer sheets are provided, as well as related methods, systems, and appliances.

Anti-icing stacks for protecting an aerodynamic surface are described. In some embodiments, an anti-icing stack includes an anti-icing layer, an elastomeric erosion protection layer, and an additional layer. The erosion protection layer is disposed between the anti-icing layer and the additional layer. The additional layer has a thickness greater than the thickness of the erosion protection layer and a tensile modulus of no more than the tensile modulus of the erosion protection layer. The additional layer may be a foam adhesive layer.

A stretch film incorporating a cling layer and a slip skin layer is provided, the cling layer comprising a 25% to 75% ethylene-based elastomer blend in a metallocene linear low density polyethylene and the slip skin layer comprising an ultra-high molecular weight polysiloxane polymer of between 5% and 10% by weight.

A flexible display panel includes: a flexible substrate, a thin film transistor layer, a light-emitting layer, an encapsulation layer located on one side of the flexible substrate successively, the flexible display panel includes a bending area where a neutral layer adjusting layer is located on the side of the flexible substrate away from the light-emitting layer; when the bending area is a first bending area, the neutral layer adjusting layer adjusts position of neutral layer in the first bending area to the encapsulation layer; when the bending area is a second bending area, the neutral layer adjusting layer adjusts position of neutral layer in the second bending area to the thin film transistor layer; the first bending area is an area where the flexible substrate is bent away from the light-emitting layer, and the second bending area is an area where the flexible substrate is bent toward the light-emitting layer.

The present disclosure provides a multilayer film containing at least three layers, including (A) a core layer containing a high density polyethylene (HDPE) having a density from 0.940 g/cc to 0.980 g/cc; and (B) skin layers on opposite sides of the core layer. Each skin layer includes (i) a propylene/ethylene copolymer with from greater than 0 wt % to 5 wt % units derived from ethylene comonomer; (ii) from 3,000 to 3,500 ppm of a slip agent; and (iii) from 4,000 to 10,000 ppm of an antiblock agent.

A foldable cover article has a total thickness t≤300 μm, which is bendable to a minimum bending radius r≤20 mm without breakage and a pencil hardness HR≥HB. The foldable cover article includes a glass or glass-ceramic substrate with a thickness 5 μm≤t1≤150 μm and a polymer layer and/or a hard material coating with a total thickness 5 μm≤t2≤150 μm. For each 20 mm width of the foldable cover article, when the foldable cover article is broken upon bending along the direction perpendicular to the width, a number of projects with a longest linear extension L≥5 mm is less than 10 and/or a number of projects with a longest linear extension L<5 mm is less than 50.