B32B27/327

Multilayer structure

The present invention deals with a multilayer structure comprising a first polyethylene layer as a first external layer. The first polyethylene layer is oriented in at least machine direction. The structure also comprises a second polyethylene layer as a second external layer. It further comprises a layer made of a copolymer of ethylene and vinyl alcohol (EVOH) between the first external layer and the second external layer and a tie layer on each side of the EVOH layer. Furthermore, the tie layers comprise one or more copolymers of ethylene.

Conformable adhesive articles

The present disclosure generally relates to conformable adhesive articles that are capable of attaching or adhering to a substrate and that can be removed from the substrate without causing damage to the substrate. The present disclosure also generally relates to methods of making and using such adhesive articles. In some embodiments, the adhesive article includes (1) a releasable layer having a first major surface and a second major surface; the second major surfaces including a pressure sensitive adhesive capable of adhering the adhesive article to a surface; and (2) a compliant layer having a first major surface and a second major surface; the second major surface of the compliant layer adjacent to the first major surface of the releasable layer. In some embodiments, the releasable layer debonds from both the surface and the compliant layer when the adhesive article is stretch released at an angle of less than 35 degrees.

ORIENTED POLYETHYLENE FILMS AND ARTICLES COMPRISING THE SAME

The present invention relates to oriented, multilayer polyethylene films. In one aspect, a biaxially oriented, multilayer polyethylene film comprises at least one layer comprising: (1) a polyethylene-based composition that comprises: (a) at least 97% by weight, based on the total weight of the polyethylene-based composition, of a polyethylene composition comprising: (i) from 25 to 37 percent by weight of a first polyethylene fraction having a density in the range of 0.935 to 0.947 g/cm.sup.3 and a melt index (I.sub.2) of less than 0.1 g/10 minutes; and (ii) from 63 to 75 percent by weight of a second polyethylene fraction; wherein the polyethylene composition has less than 0.10 branches per 1,000 carbon atoms when measured using .sup.13C NMR, wherein the density of the polyethylene-based composition is at least 0.965 g/cm.sup.3, and wherein the melt index (I.sub.2) of the polyethylene-based composition is 0.5 to 10 g/10 minutes.

Bulk Diffuser

This disclosure describes a composition that includes a bulk diffuser that includes a film having a major surface; the film includes a polymer, and a scattering element. The scattering element includes a silicone bead having a mean particle diameter in a range of 2 micrometers (μm) to 9 μm. The linear density of the film is at least 5.1 W.sub.i*μm, wherein the linear density equals the product of the mass fraction of the silicone bead (W.sub.i) and film thickness in micrometers (μm). This disclosure further describes methods of making the film and the bulk diffuser and methods of using the film including, for example, as a bulk diffuser in a sign box.

Recyclable film

Described herein are recyclable films with an outer surface comprising a polar polymer, such as polyamide, an inner surface comprising a sealant, and a polar polymer compatibilizer located between the polar polymer and the sealant. Preferably the outer surface is an outer layer of biaxially oriented polyamide and the inner surface is a multilayer inner film comprising the sealant and the compatibilizer.

Method of making coextruded crosslinked polyolefin foam with polyamide cap layers

Described herein are physically crosslinked, closed cell continuous multilayer foam structures that includes a foam layer comprising polypropylene, polyethylene, or a combination of polypropylene and polyethylene and a polyamide cap layer. The multilayer foam structure can be obtained by coextruding a multilayer structure comprising at least one foam composition layer and at least one cap composition layer, irradiating the coextruded structure with ionizing radiation, and continuously foaming the irradiated structure.

Extrusion Blow Molded Articles and Processes for Making Same
20230159679 · 2023-05-25 ·

Extrusion blow molded articles and processes for making same. In some examples, the article can include a polyethylene copolymer derived from ethylene and at least one C.sub.3 to C.sub.20 α-olefin. The polyethylene copolymer can have an I.sub.2.16 (190° C./2.16 kg) of 0.2 g/10 min to 1 g/10 min, a melt index ratio of 30 g/10 min to 80 g/10 min, and a density of 0.910 g/cm.sup.3 to 0.940 g/cm.sup.3. The article can be formed by extrusion blow-molding the polyethylene copolymer. At least one surface of the article can have an average gloss of at least 40.

Laminated packaging material, packaging containers manufactured therefrom

The present invention relates to a method for manufacturing of a laminated cellulose-based liquid or semi-liquid food packaging material, wherein the laminated packaging material has a bulk material layer of paper, paperboard or other cellulose-based material, an innermost, heat sealable and liquid-tight layer of a thermoplastic polymer, the innermost polymer layer intended to be in direct contact with the packaged food product, a barrier layer laminated between the bulk layer and the innermost layer. The invention further relates the laminated packaging materials obtained by the method and to a packaging container for liquid food packaging, comprising the laminated packaging material or being made from the laminated packaging material obtained by the method.

Low coefficient of friction ethylene-based compositions

The present disclosure provides a composition containing a polymeric blend. The polymeric blend contains (A) from 50 wt % to 90 wt % of a first ethylene-based polymer having a density from 0.895 g/cc to 0.905 g/cc; and a melt index from 0.1 g/10 min to 50 g/10 min; (B) from 8 wt % to 48 wt % of a second ethylene-based polymer having a density from 0.935 g/cc to 0.967 g/cc; and a melt index from 0.1 g/10 min to 180 g/10 min; and from 0.01 wt % to 2.0 wt % of a slip agent, based on the total weight of the polymeric blend. The polymeric blend has (i) an overall density from 0.900 g/cc to 0.925 g/cc; and (ii) a coefficient of friction (COF) after aging for 1 week at 60° C. from 0.001 to 0.400. The present disclosure also provides a multilayer film with a first layer containing the composition.

Peel strength between dissimilar fabrics

Hybrid fibrous composite materials incorporating at least two different fabric components and a multicomponent adhesive system for adhering the fabric components together. The adhesive system enhances the bond strength between the fabric components, which would otherwise easily delaminate from each other and peel apart. The components of the adhesive system bond strongly to each other as well as to the fabric elements.