Abstract:
Described are implements made from a durable HIPE foam material. The HIPE foam has a Toughness Index of at least 75 where the Toughness Index relates properties related to durability (e.g., density, tan[δ] height, glass transition temperature, and abrasion resistance) into a single composite descriptor thereof. Exemplary implements include: wipes, toys, stamps, art media, targets, food preparation implements, plant care implements, and medical wraps.
Abstract:
A process for producing a porous crosslinked polymer in which an upper part and a lower part of the porous crosslinked polymer can be freely controlled with respect to surface properties, width, and thickness and the emulsion can be fed and polymerised continuously. The process comprises polymerising a W/O emulsion having a high dispersed-phase content to produce a porous crosslinked polymer, and is characterized in that the emulsion is continuously fed and polymerised while the atmosphere is contact with the emulsion is kept having a lower oxygen content than the surrounding air by an oxygen-diminishing means.
Abstract:
This application relates to flexible, microporous, open-celled polymeric foam materials with physical characteristics that make them suitable for a variety of uses. This application particularly relates to high temperature processes having short curing times for preparing such foam materials from high internal phase emulsions.
Abstract:
Compositions and methods of using melanin, or melanin-promoting compounds, for inhibiting angiogenesis to treat angiogenesis-dependent diseases, such as macular degeneration and cancer.
Abstract:
Disclosed are microporous, open-celled polymeric foams formed by polymerizing a high internal phase water-in-oil emulsion comprising a continuous oil phase and discontinuous water phase where the foam has a Limiting Oxygen Index (LOI) value of at least about 18 %. Such foams are commonly known in the art as 'HIPEs'. The foams have a variety of flame retardant applications, including use in insulation.
Abstract:
A process is provided for curing a high internal phase emulsion to form a porous crosslinked polymeric material, comprising the steps of: forming a high internal phase emulsion having at least one curable phase; providing a continuous strip of polymeric film wherein the polymeric film is incompatible with each of the phase of emulsion; placing at least a portion of the emulsion continuously on the polymer film; closing the polymeric film around the emulsion; spiraling the emulsion in the polymeric film onto a spool, wherein the spool rotates about an essentially vertical axis for storage of the emulsion during curing; and curing the emulsion within the polymeric film on the spool. Apparatuses to perform this process are also disclosed.
Abstract:
The present invention relates to a High Internal Phase Emulsion (HIPE) and HIPE foams produced therefrom comprising two or more layers and having a photoinitiator.
Abstract:
A method of producing a monolithic metal or metal composite having a hierarchic pore structure, the method comprising the steps of: selecting a template material, said template material having a porous structure; contacting the template material with a solution of the or each metal to be structuralised; depositing the or each metal onto the template; washing the metal coated template before deposition of further metal; isolating the metal coated template material; removing, thermally, at least a portion of the template material.