摘要:
A polyolefin-based elastic hot melt adhesive composition having oil resistance, creep resistance and excellent bond strength is provided. The adhesive composition is useful in elastic laminates used in personal care absorbent articles and other garments.
摘要:
An adhesive composition including an atactic polymer, an isotactic polymer, and an extensible base polymer, such as ethylene-vinyl acetate and/or ethylene methacrylate. The composition may also include a tackifier, such as a high softening point tackifier resin, a low softening point additive, and/or other additives, such as an antioxidizing agent, a plasticizer, mineral oil, color pigment, filler, polymer compatibilizer, or a combination of any of these additives. Facing layers, particularly stretchable and/or elastomeric substrates, can be bonded with the adhesive composition. The adhesive composition maintains high bond strength, even at body temperature and after initial stretching. Such adhesive compositions and laminates can be made according to a method of the invention.
摘要:
A wheelchair lifting bay comprising base means, a lifting platform, lifting means and pivot means, in which the lifting platform is connected to the base means by the pivot means, in which the lifting platform comprises a bottom wall and a back wall, in which the pivot means is disposed rearward of said back wall and is spaced apart from it, in which the lifting means is mounted between the base means and the lifting platform forward of the pivot means, and in which the lifting means rotates the lifting platform about the pivot means in use such that the back wall follows a circumferential path about the pivot means.
摘要:
Corrosion of the carbon catalyst support may occur at both the anode and cathode catalyst layers within an electrochemical fuel cell. Such corrosion may lead to reduced performance and/or decreased lifetimes of the fuel cell. Nevertheless, carbon supports have many desirable properties as catalyst supports including high surface area, high electrical conductivity, good porosity and density. To reduce or eliminate corrosion of the carbon catalyst support, the carbon support may have a metal surface treatment and, in particular, a metal carbide surface treatment. Suitable metal carbides include titanium, tungsten and molybdenum. In this manner, the metal carbide surface treatment protects the underlying carbon support from corrosion while maintaining the desirable characteristics of the carbon support.
摘要:
A bonded structure including one or more substrates bonded together with a tackified amorphous poly-alpha-olefin adhesive composition. One method of making such a bonded structure is carried out by applying a tackified amorphous poly-alpha-olefin adhesive composition to one or more substrates at a temperature of about 170 degrees Celsius or lower, and joining the substrates to themselves or to one another. The bonded structure has a dynamic peel strength between about 400 and about 1000 grams per 25 millimeters. The bonding efficiency of the bonded structure renders the bonded structure suitable for incorporation into a variety of articles, including personal care products, health/medical products, and household/industrial product, for example.
摘要:
A bonded structure including one or more substrates bonded together with a tackified amorphous poly-alpha-olefin adhesive composition. One method of making such a bonded structure is carried out by applying a tackified amorphous poly-alpha-olefin adhesive composition to one or more substrates at a temperature of about 170 degrees Celsius or lower, and joining the substrates to themselves or to one another. The bonded structure has a dynamic peel strength between about 400 and about 1000 grams per 25 millimeters. The bonding efficiency of the bonded structure renders the bonded structure suitable for incorporation into a variety of articles, including personal care products, health/medical products, and household/industrial product, for example.
摘要:
An adhesive composition comprises at least a binder polymer and a water-soluble plasticizer. The binder polymer may be present in a range of about 10% to about 60% by weight of the adhesive composition, and the plasticizer may be present in the range of about 5% to about 85% by weight of the adhesive composition, such as in the range of about 40% to about 80% by weight. In some aspects, the adhesive also comprises less than 10% by weight highly-volatile component, such as about 0% to about 5% by weight. The adhesive composition can be utilized in a variety of articles, including personal care articles, health/medical articles, and household/industrial articles.
摘要:
The present disclosure relates to a catalyst including platinum phosphide having a cubic structure, a method of making the catalyst, and a fuel cell utilizing the catalyst. The present disclosure also relates to method of making electrical power utilizing a PEMFC incorporating the catalyst. Also disclosed herein is a catalyst including a platinum complex wherein platinum is complexed with a nonmetal or metalloid. The catalyst with the platinum complex can exhibit good electro-chemically active properties.
摘要:
Non-noble metal transition metal catalysts can replace platinum in the oxidation reduction reaction (ORR) used in electrochemical fuel cells. A RuxSe catalyst is prepared with comparable catalytic activity to platinum. An environmentally friendly aqueous synthetic pathway to this catalyst is also presented. Using the same aqueous methodology, ORR catalysts can be prepared where Ru is replaced by Mo, Fe, Co, Cr, Ni and/or W. Similarly Se can be replaced by S.
摘要翻译:非贵金属过渡金属催化剂可以代替铂在电化学燃料电池中使用的氧化还原反应(ORR)。 制备具有与铂相当的催化活性的Ru x Se Se催化剂。 还提出了一种对该催化剂的环境友好的水合物途径。 使用相同的水性方法,可以制备其中Ru被Mo,Fe,Co,Cr,Ni和/或W替代的ORR催化剂。类似地,Se可以被S.
摘要:
A wheelchair lifting bay comprising base means, a lifting platform, lifting means and pivot means, in which the lifting platform is connected to the base means by the pivot means, in which the lifting platform comprises a bottom wall and a back wall, in which the pivot means is disposed rearward of said back wall and is spaced apart from It, in which the lifting means is mounted between the base means and the lifting platform forward of the pivot means, and in which the lifting means rotates the lifting platform about the pivot means in use such that the back wall follows a circumferential path about the pivot means.