摘要:
A fuel tank comprising two or more sections bonded together with an adhesive which bonds to low energy surface materials and has fuel barrier properties.
摘要翻译:一种燃料箱组件,包括燃料箱(10)和通过粘合剂连接到燃料箱的燃料箱部件(11),其中燃料箱和部件具有未处理的低能量表面,粘合剂包括胺/有机硼烷 复合物,这种粘合剂可以支撑1334牛顿的载荷,并且具有46g-mm / m 2 /天的燃料蒸气渗透速率,并且低能量表面不需要表面预处理。
摘要:
The invention is a catalytic device comprised of a catalyst support of fused ceramic grains and a catalyst that is surface-bound to at least a portion of the ceramic grains, incorporated into at least a portion of the ceramic grains or combinations thereof, wherein the grains and catalyst form a surface structure that has a box counting dimension of greater than 1.00 or the box counting dimension has at least one step change when measured from a box size "d" of at least about 1 micrometer to at most about 1 millimeter. The invention is particularly useful in making a catalytic converter or catalytic converter-soot trap.
摘要:
An improved Diesel exhaust filter element of the type having a rigid porous wall portion formed of an acicular ceramic (such as acicular mullite), the porous wall portion having a first side and a second side, the porous wall portion being coated with a precious metal catalyst and a Nox absorbent, such that when exhaust gas from a Diesel engine is flowed through the rigid porous wall from the first side to the second side, the exhaust gas containing excess oxygen, Nox and soot, the soot in the exhaust gas in trapped within the rigid porous wall and catalytically oxidized to carbon dioxide, the NO is catalytically oxidized to NO2, which NO2 is then absorbed by the Nox absorbent, and such that when the exhaust gas is caused to contain excess hydrocarbon and carbon monoxide, then the Nox absorbent is regenerated and the remaining hydrocarbon and carbon monoxide are catalytically converted to nitrogen and carbon dioxide. In addition, a process for depositing precipitated metal ions on the surfaces of such a rigid porous wall.
摘要:
A polyurethane-polymer composition suitable for preparing a lightweight tire support includes at least one isocyanate, at least one polyol, and at least one chain extender. A polyurethane-polymer composition can also include an additive such as a catalyst, a filler, a surfactant, a colorant, and a mold-release agent. A lightweight tire support can be prepared from a polyurethane-polymer composition by, for example, reaction injection molding. Such a tire support desirably has temperature stability and load-bearing capability.
摘要:
A process for making a polymer foam sheet, which comprises (i) extruding through an annular extrusion die a foamable composition comprising at least one polypropylene polymer and at least one blowing agent, at a pressure, temperature, and extrusion rate sufficient to prevent foaming of the composition prior to exiting the die, under conditions sufficient to form a foam tube having a density of at least (16) kg/m3 and no greater than 200 kg/m3, an open cell content of less than 70 percent, a circumference of at least 1 meter, and a foam thickness of at least 2 mm and no greater than 25 mm, wherein the blowing agent is used in an amount of from 0.2 to 4.5 moles per kg of polymer, (ii) allowing the foam to cool to a temperature below the melt temperature of the polypropylene, and (iii) cutting the tube of foam along its radius to form a foam sheet, wherein at least 70 percent by weight of the polymer in such sheet is a polypropylene having a melt strength in the range of from 25 to 60 cN when measured at 190 °C.
摘要:
The invention is an optoelectronic device comprising a transparent polymeric substrate (12) bearing on one surface thereof a transparent polymerized organosilicon protective layer (13), a first electrode (21) over the polymerized protective layer (13), an optoelectrically active film (20) comprising an electroactive material, said film having a first side, which is in contact with the transparent electrode (21) and a second side in contact with a second electrode (25), wherein said first electrode (21) is characterized in that it allows light to pass to or from the optoelectrically active film (20). Preferably, the device further comprises additional protective packaging (31-33) over the second electrode.
摘要:
The invention is a catalytic device comprised of a catalyst support of fused ceramic grains and a catalyst that is surface-bound to at least a portion of the ceramic grains, incorporated into at least a portion of the ceramic grains or combinations thereof, wherein the grains and catalyst form a surface structure that has a box counting dimension of greater than 1.00 or the box counting dimension has at least one step change when measured from a box size "d" of at least about 1 micrometer to at most about 1 millimeter. The invention is particularly useful in making a catalytic converter or catalytic converter-soot trap.