Abstract:
The present disclosure is directed to a closed cell foam matrix for delivering oxygen containing a superabsorbent material oxygen entrapped within the superabsorbent material. The superabsorbent material has at least 15 percent by mass monoethylenically unsaturated carboxylic, sulphonic or phosphoric acid or salts thereof, an acrylate or methacrylate ester that contains an alkoxysilane functionality, and a copolymerizable hydrophilic glycol containing ester monomer. To produce the closed cell foam matrix for delivering oxygen, an alkali hydroxide catalyst is added to the superabsorbent material to form a hydrogel layer. Then, an oxygen precursor is added to the hydrogel layer. The hydrogel layer is heated to produce oxygen by reacting the alkali hydroxide catalyst and the oxygen precursor thereby entrapping the oxygen in the formed closed cell foam matrix.
Abstract:
A novel polymer mixture having fast drying time, a multilayer article comprising at least one layer of the dried polymer mixture and having good mechanical properties, and a method of preparing the multilayer article.
Abstract:
Described herein are polymer complexes, including polymer gels and polymer foams, containing electrically conductive polymers and ionic liquids. The polymer complexes described herein are useful as components of electronic devices.
Abstract:
A foamed sheet according to the present invention has a thickness of 30 to 500 µm and includes a foam. The foam has a density of 0.2 to 0.7 g/cm 3 , an average cell diameter of 10 to 150 µm, and a peak top of loss tangent (tan δ) occurring in a temperature range of from -30°C to 30°C, where the loss tangent is defined as the ratio of a loss modulus to a storage modulus determined at an angular frequency of 1 rad/s in dynamic viscoelastic measurement of the foam. The foam preferably has a maximum of the loss tangent (tan δ) in the temperature range of from -30°C to 30°C of 0.2 or more.
Abstract:
Polyolefin dispersions, froths, and foams and articles manufactured therefrom are disclosed. Also disclosed is a method for generating a thermoplastic foam from an aqueous dispersion. The aqueous dispersion may include a thermoplastic resin, water, and a stabilizing agent. The method may include adding at least one frothing surfactant to the aqueous dispersion to form a mixture, adding a flame retardant and/or a phase change material, frothing the mixture to create a froth, and removing at least a portion of the water to produce the foam.
Abstract:
A porous material comprising vapor grown carbon fiber in an amount of 10 to 90 mass %, fiber filaments of the carbon fiber forming a three-dimensional network and having a diameter of 1 to 1,000 nm, an aspect ratio of 5 to 15,000, a specific surface area (by BET method) of 2 to 2,000 m 2 /g, and the ratio of the intensity of the peak at 1,360 cm -1 in a Raman scattering spectrum of the carbon fiber to that of the peak at 1,580 cm -1 in the spectrum(I 1360 /I 1580 ) is 0.1 to 2.0, wherein the porosity of the porous material (V/V 0 ) is 0.50 to 0.99 and a specific surface area is 5 to 1,000 m 2 /g; and a production method and use thereof. The vapor grown carbon fiber impregnated in the porous material of the present invention does not contain aggregates and a three-dimensional network is formed between the fiber filaments, wherein length of each of the fiber filaments is maintained.; Therefore, the vapor grown carbon fiber enables to readily produce a composite material (porous material), in which even a small amount of addition of vapor grown carbon fiber can exhibit sufficient effect.
Abstract:
The present invention is core-shell polymer particles comprising a common binder polymer for the core and the shell wherein the core has a porosity and the shell is non-porous The particles have a porosity from 10 to 70 percent.