Ultra-stable aqueous foam comprises hydrophobic silica particles residing within bubbles in an aqueous solution of a hydrophilic polymer, a protein, or aqueous dispersible colloidal particles. The combination of the hydrophobic and hydrophilic components stabilizes the foam interfaces to result in long term stability of the foam. The foams can be crosslinked to stable monolithic foams and used for structural foams, coatings, and thermal insulating for construction.

The present invention relates to superabsorbent polymer and a method for preparing the same. The present invention can provide a superabsorbent polymer in which a hydrophobic material having an HLB of 0-6 and a surface cross-linking agent are mixed into a base resin prepared in the presence of water dispersible silica, thereby having improved rewetting characteristics and permeability through surface-modification of the base resin.

A composition is used for producing novel types of foam in that they combine specifically good flame-retardant properties with a good elongation at break. These novel types of foam are produced from a blend of polyether sulphone (PES) and polyphenylene sulphone (PPSU).

The present disclosure provides for porous polymer materials that include an ordered array of voids separated by a polymer framework. The porous polymer material can have a recovery state where the voids are in an uncollapsed state and iridescent color, and a deformed state having voids in a collapsed state that is non-iridescent or substantially transparent. The materials can have regions of both states simultaneously. Also described are methods for fabricating a polymer material as above, as well as chromogenic sensors including the polymer material. The sensors can have hidden anti-counterfeiting patterns, hydrophobic/oleophobic properties, and chromogenic transformation can be triggered by various stimuli such as solid target compounds, light energy, and more.

Disclosed herein are hybrid membranes comprising: a microporous polymer, the microporous polymer comprising a continuous polymer phase permeated by a continuous pore phase; and an atomic scale inorganic material dispersed throughout the microporous polymer within the continuous pore phase. Methods of making and use of the hybrid membranes are also disclosed.

A silicone foam is described that is produced in-situ at a wound site, e.g. in a wound cavity, through a multi-component system, based on a physical foaming process, wherein the gas required to form the foam structure is provided through a blowing agent independently of the curing reaction of polyorganosiloxane components of the multi-component system. Therefore, the blowing agent is provided as a distinct entity of the multi-component system that is, in particular, not the result of any chemical reaction taking place in the multi-component system. A device for producing the foam and the corresponding negative pressure wound therapy kit are also described.

An ethylene bis-12-hydroxystearamide grafted glycidyl citrate (EBH-g-ECA) and a preparation method thereof are provided; the EBH-g-ECA can be used as a multifunctional auxiliary agent in a polymer material, and particularly has a chain extension and a crystal nucleation effect in a polyester polymer material. A heat-resistant polylactic acid continuously-extruded foamed material containing EBH-g-ECA is further provided. The continuous foaming technology can be realized by using the heat-resistant polylactic acid foamed material, and the prepared foamed product has a high heat resistance, a uniform appearance, a low density, and complete biodegradation. A polylactic acid foamed material preparation method for a heat-resistant is provided, which is easy to be industrialized and has a great significance for realizing the large-scale replacement of petroleum-based plastic disposable foamed products such as PP and PS.

Thermoplastic resin foamed particles of the present invention including .[.more than.]. one .Iadd.or more .Iaddend.functional additive selected from inorganic powder and inorganic fibers each includes a core layer formed of a thermoplastic resin and a coating layer in a foamed state formed of a thermoplastic resin, the mass ratio of the coating layer to the core layer is 99:1 to 50:50, the content (X) of the functional additive in the core layer is 5 to 90% by mass, and the content of the functional additive in the coating layer is smaller than the content (X) of the functional additive in the core layer. By this way, thermoplastic resin foamed particles from which a homogeneous foamed particle molding having excellent dimension stability, fusibility and appearance can be obtained while containing functional additive are provided.

The present invention relates in part to the unexpected discovery of novel hybrid organic-inorganic aerogel materials with one-dimensionally aligned pores.

According to the present invention, a microporous membrane contains a polyolefin resin and inorganic particles; the primary particle diameter of the inorganic particles is 100 nm or less; the content of the inorganic particles is 10-60% by mass or 10% by mass or more but less than 40% by mass based on the mass of the microporous membrane; and the retention time at 150 C. is less than 200 seconds or the retention time at 145 C. is more than 1 second but less than 300 seconds in the thermal behavior evaluation of the microporous membrane.