The present disclosure relates to a pressure sensitive adhesive foam comprising a rubber-based elastomeric material, at least one hydrocarbon tackifier and a crosslinking additive selected from the group of multifunctional (meth)acrylate compounds. The present disclosure also relates to a method of manufacturing such a pressure sensitive adhesive foam and uses thereof.

A flexible material for thermal and acoustical insulation comprising an expanded polymer (blend) based on at least one elastomer, wherein expansion is achieved by decomposition of a mixture of at least two chemical blowing agents, comprising the exothermic chemical blowing agent 4,4-Oxybis(benzenesulfonyl hydrazide) (OBSH) and at least one endothermic blowing agent.

The present invention provides a gasket excellent in properties such as sliding properties and resistance to liquid leakage. The present invention relates to a gasket including a gasket base material whose surface is at least partially provided with immobilized polymer chains, the gasket having a sliding surface provided with multiple annular projections, the annular projections including a first projection nearest to the top surface of the gasket, the first projection having a surface roughness Ra of 1.0 or less.

A plastic molded body has a surface including a non-fluororesin and a rough surface formed on the surface, in which a fluorine atom is incorporated into the molecular chain of a non-fluororesin forming the rough surface. The molded body maintains excellent liquid repellency for a long period of time and exhibits the same levels of drainage and liquid drop-off properties as the initial levels even when it is brought into contact with a liquid repeatedly.

To obtain an elastomeric composite crumb having a majority of the particle size distribution greater than 0.33 cm, the crumb is obtained by a process whereby the elastomeric composite comprises less than about 0.5 phr of a salt of a C.sub.8 to C.sub.20 carboxylic acid, or 10 to 20 phr of a tackifying resin or a combination of both an absence of carboxylic acid and the presence of the tackifying resin. The use of one or both methods permits control of crumb particle size distribution in emulsion or solution processes for producing elastomeric nanocomposites. The elastomeric composite is also disclosed.

In the present disclosure, there is provided a polyethylene in which the high molecular region ratio in the molecular structure is lowered, and the viscosity and melt index are optimized with a narrow molecular weight distribution. Therefore, it is possible to prevent premature cross-linking of chlorinated polyethylene obtained by reacting the polyethylene with chlorine, thereby minimizing a decrease in viscosity even after long-term storage and improving extrusion processability. Further, there is provided a vulcanizable chlorinated polyethylene composition using the polyethylene.

A process for producing a vulcanizable composite material, including the steps of: a) producing or providing a textile strength member, b) producing or providing a crosslinkable rubberization mixture comprising: i) at least one base rubber selected from the group consisting of ethylene-propylene-diene rubbers and butyl rubbers, and ii) at least one aging selected from the group consisting of p-phenylenediamines, dihydroquinolines, phenylnaphthylamines, substituted phenols and substituted bisphenols, and c) introducing the textile strength member into the crosslinkable rubberization mixture to obtain the vulcanizable composite material, wherein the crosslinkable rubberization mixture is processible by vulcanization to give a crosslinked rubberization mixture which is at least partly transmissive to visible light at least in sections.

A nozzle includes a front end part, wherein the nozzle is composed of a non-fluorine-based resin, and wherein fluorine atoms are incorporated into a molecular chain of the non-fluorine-based resin constituting a surface of the nozzle. A nozzle includes a front end part, wherein a surface of the front end part is provided with a first surface positioned on the center side of the nozzle and a second surface continuing to an outer peripheral side of the first surface, and wherein the first surface and the second surface are composed of surfaces differing in surface free energy.

Barrier films including a (co)polymeric substrate, at least one dyad on the substrate, each dyad made of a (co)polymer layer and an oxide layer overlaying the (co)polymer layer, and an outer (co)polymer layer overlaying the dyads. Optionally, at least one outer oxide layer overlays the outer (co)polymer layer. The barrier films transmit visible light and transmits, at an incident light angle of at least one of 0, 30, 45, 60, or 75, at most 70 percent of incident ultraviolet light at a wavelength range from at least 100 nanometers to 400 nanometers or in a wavelength range from at least 100 nm to 350 nm. The barrier films exhibit atomic oxygen degradation of less than 110.sup.20 mg/atom. The barrier films may be applied to decorative objects or electronic devices, (e.g., light receiving or emitting devices, in a satellite or aircraft. Methods of making the barrier films also are disclosed.

A method of producing hydrocarbon from a subterranean formation comprises: disposing an article in a well penetrating a subterranean formation, the article having a surface coated with a hierarchical superhydrophobic coating or the article being a stand-alone hierarchical superhydrophobic membrane; contacting the article with a flow of a water-based fluid and an oil-based fluid; selectively impeding the flow of the water-based fluid; and allowing the production of the oil-based fluid.