摘要:
A tobacco smoking device comprises a porous mass of active particles adapted to enhance a tobacco smoke flowing over said active particles and binder particles. The active particles comprises about 1-99% weight of the porous mass, and the binder particles comprises about 1-99% weight of said porous mass. The active particles and said binder particles are bound together at randomly distributed points throughout the porous mass. The active particles have a greater particle size than the binder particles.
摘要:
A tobacco smoking device comprises a porous mass of active particles adapted to enhance a tobacco smoke flowing over said active particles and binder particles. The active particles comprises about 1-99% weight of the porous mass, and the binder particles comprises about 1-99% weight of said porous mass. The active particles and said binder particles are bound together at randomly distributed points throughout the porous mass. The active particles have a greater particle size than the binder particles.
摘要:
Disclosed are filters, smoking devices, related articles and apparatus, and related methods. The filters include porous masses that have an active particle and a binder particle, wherein the active particle comprises carbon and the porous mass has a carbon loading of at least about 6 mg/mm and an encapsulated pressure drop of about 20 mm of water or less per mm of porous mass.
摘要翻译:披露过滤器,吸烟装置,相关物品和装置以及相关方法。 过滤器包括具有活性颗粒和粘合剂颗粒的多孔质量块,其中活性颗粒包含碳,多孔质量具有至少约6mg / mm 2的碳负荷和约20mm水或更少的封装压降 每毫米多孔质量。
摘要:
A polyethylene powder has a molecular weight in the range of about 300,000 g/mol to about 2,000,000 g/mol as determined by ASTM-D 4020, an average particle size, D50, between about 300 and about 1500 μm, and a bulk density between about 0.25 and about 0.5 g/ml. On sintering, the polyethylene powder produces a porous article having a porosity of at least 45% and a pressure drop less than 5 mbar. The porous article is useful in, for example, wastewater aeration and capillary and filtration applications.
摘要:
Filled pelletized materials made from high- or ultrahigh-molecular-weight polyethylenes and process for their production Pelletized materials made from high- and/or ultrahigh-molecular-weight polyethylene are described. The pelletized materials comprise fillers and/or reinforcing materials and can be processed by processes known per se to give moldings. The pelletized materials may be produced on a specifically designed extruder.
摘要:
Polyethylene compositions for producing moldings have a surface resistance of at most 10.sup.9 .OMEGA. includinga) 0.1% to 80% of a polyethylene or an ethylene copolymer having an intrinsic viscosity of from 100 to 700 ml/g;b) 99.9% to 20% of a polyethylene having an intrinsic viscosity of at least 1600 ml/g;c) 1.0% to 10.0, based on the polymer mixture of a and b, of carbon black; andwherein the sum of Components a and b is 100% and the intrinsic viscosity of the polymer mixture of a and b is at least 1600 ml/g.
摘要:
For the production of extrudates such as profiles or granules, pulverulent or finely divided ultra-high molecular weight polyethylene is processed on single screw extruders. By the use of a screw with a specific geometry, thermal degradation of the polymer into low molecular weight products is avoided. Furthermore, profiles are obtained which have perfect surfaces, are free of voids and pores, and have no internal stresses.
摘要:
Moldings of ultra high molecular weight polyethylene powder are produced by heating the polymer powder at 160.degree. to 280.degree. C. in a mold without applying pressure or at a pressure of up to 0.5 MPa, and then cooling it to room temperature at a pressure of from 4 to 20 MPa.