A method for dielectrically heating foamable composition to foam and set the composition is described. In particular, radio frequency (RF) heating is used to heat the foamable composition to provide insulation in the manufacture of an article.

Composite materials capable of absorbing and dissipating high energy forces such as ballistic impacts and explosive blasts. Composites of elastomers and reinforcing nanoparticle materials are configured to absorb and dissipates high energy forces. Composites can be configured as nonwoven webs, and can be layered. Methods of making a ballistic resistant composite material capable of absorbing and dissipating high energy forces.

A waterproofing membrane including a reinforcing material coated with a blend formulation, the blend formulation including glass spheres having a particle size between 0.25-0.50 mm and a particle density between 0.5-0.8 g/cm.sup.3.

Disclosed are compositions and methods for multilayer films, which, in one embodiment may comprise a core layer comprising at least 50 wt. % of high-density polyethylene. Further, the multilayer film may include a first skin layer comprising, consisting essentially of, or consisting of low-density polyethylene, optionally linear, and at least about 80 wt. % of high-density polyethylene, as well as a second skin layer comprising either: (i) one or more low-density polyethylenes, any or all of them optionally being linear; or (ii) one or more polypropylene-based copolymers. The multilayer film may be oriented in at least one direction.

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.

Embodiments of the present invention relate to multilayer films, labels, and packages. In one aspect, a multilayer film having at least one matte surface comprises (a) an outer layer comprising (i) 30 to 99.5 weight percent of a first low density polyethylene having a density of 0.919 g/cm.sup.3 to 0.940 g/cm.sup.3 and a melt index (I.sub.2) of 0.3 to 5 g/10 minutes, (ii) 0.1 to 20 weight percent of polymer particles having a core and a shell structure wherein the core comprises a first polymeric material having a first refractive index and the shell comprises a second polymeric material having a second refractive index that is different from the first refractive index, and (iii) optionally, up to 50 weight percent of a first polyethylene having a density of 0.925 g/cm.sup.3 to 0.970 g/cm3 and a melt index (I.sub.2) of 0.8 to 10 g/10 minutes, each based on the total weight of the outer layer; and (b) a second layer in adhering contact with the outer layer comprising (i) 1 to 80 weight percent of a second low density polyethylene having a density of 0.919 g/cm.sup.3 to 0.940 g/cm3 and a melt index (I.sub.2) of 0.3 to 5 g/10 minutes, and (ii) 20 to 99 weight percent of a second polyethylene having a density of 0.925 g/cm.sup.3 to 0.970 g/cm.sup.3 and a melt index (I.sub.2) of 0.8 to 10 g/10 minutes, each based on the total weight of the second layer; wherein the outer layer has a gloss of less than 50% as measured by ASTM D2457 at an angle of 45°.

Films having high light transmission values, low haze and high glass transition temperatures and useful, for example, as optical protection films and zero-zero optical retardation films, are prepared using one or more copolymers of methyl methacrylate having certain characteristics.

An object of the present invention is to provide a polymer film having a low dielectric loss tangent and a small difference in a linear expansion coefficient from that of a copper foil; and a laminate. The polymer film of an embodiment of the present invention is a polymer film including a liquid crystal polymer, in which a hardness A at a distance of half of a thickness of the polymer film and a hardness B at a distance of 1/10 of the thickness of the polymer film satisfy a relationship of Expression (1A), and in a case where positions at distances of 1/10, 4/10, and 6/10 of the thickness of the polymer film are defined as a position T1, a position T2, and a position T3, respectively; and a region from the one surface to the position T1 is defined as a first surface layer region, and a region from the position T2 to the position T3 is defined as a central region, a void area proportion X in the first surface layer region and a void area proportion Y in the central region satisfy a relationship of Expression (2A).
(Hardness A+Hardness B)/2≥0.10 GPa  Expression (1A)
Void area proportion Y−Void area proportion X≥0.10%  Expression (2A)

The present invention aims to provide an adhesive composition having excellent adhesive property and excellent anti-fogging property by way of simple and easy means such as co-extrusion with a substrate film, extrusion coating, solvent coating, etc. According to the present invention, there is provided an adhesive composition, characterized in that it contains a polyester resin (A) and an anti-fogging agent (C), and satisfies the following requirement (1): (1) Glass transition temperature of the polyester resin (A) is from −30 to 30° C.

A composite polymeric film wear layer for application as a surface protection layer to impart lower gloss, higher scratch resistance, wear performance and comfort under foot to hard surface substrates is provided. Hard surface substrate made with the composite as well as methods for application are also provided.