Environmentally friendly material

Precious metals have faced a significant price increase and the fear of depletion. By contrast, iron is a highly abundant metal in the crust of the earth (4.7 wt%) of low toxicity and price. Thus, it can be defined as an environmentally friendly material. Therefore, iron complexes have been studied intensively as an alternative for precious-metal catalysts within recent years (for reviews of iron-catalyzed organic reactions, see [12-20]). The chemistry of iron complexes continues to expand rapidly because these catalysts play indispensable roles in today s academic study as well as chemical industry. 

When we think of more environmentally friendly materials, the compound of starch and Bionolle is thought to be promising. But, on the other hand, the physical properties tend to become worse after compounding. We had to overcome these contradictions to commercialize our starch compound. 

Nike is designing high-performance products through the use of more environmentally friendly materials while eliminating toxics and waste, leading to more sustainable products A label displayed on products clearly identifies its environmental profile... 

The higher yields represent improvements in alkylation efficiency and better utilization of the benzene feedstock. The higher purities improve the efficiencies of downstream technologies, so that ultimately less energy is consumed in the styrenic and phenolic chains for producing plastic products. Another important factor is that the zeolitic catalysts are more environmentally friendly materials than aluminum chloride and SPA. 

High safety. One advantage of the double-layer capacitor is that it uses environmentally friendly materials in contrast to the rechargeable batteries using heavy metals. An electrolyte material with high safety and low environmental impact is desired. 

In addition to the process benefits, there are cost and environmental benefits associated with the supercritical process. The supercritical fluid process has low operating energy costs when compared to other alternative solvent processes and the cost of the carbon dioxide used to supply the system is orders of magnitude less than the purchase costs of chlorofluorocarbons, especially with the added taxes imposed by the federal government. In addition, carbon dioxide is a more environmentally friendly material and does not have the disposal costs associated with other alternatives. 

Design new environmentally friendly materials including those based on renewable resources. 

Figure 1 shows an example from electric modulus spectra of the room temperature ionic liquid (an environmental friendly material that have many applications), 1-butyl-1-methylpyrrolidinium bis[oxalato]borate (BMP-BOB) measured over wide temperature (123-300 K) and pressure (0.1-500 MPa) ranges. ... 

There are increasing pressures on the pharmaceutical industry to use environmentally friendly materials in products, which are biodegradable or recyclable and do no harm to the environment. Examples are the replacement of CFCs in pressurised metered dose aerosols and the replacement of polyvinyl chloride (PVC) for alternative packaging materials in some countries. Any special restrictions on the use of materials in the product need to be identified at the product design stage. The choice of appropriate materials to suit product, customer and environment may also have cost implications. 

Sugar based polymers, which are obtained by polymerization of vinyl sugars, have recently received increased attention from two viewpoints. One is the development of environmentally friendly material from renewable resources. Another is physiologically active material that mimics carbohydrate on cell surface. This article provides an overview of known sugar based polymers and the recent advances of the poly(vinylalcohol) (PVA) with sugar pendants. 

We also expect our business partners - printers, paper mills, packaging manufacturers, etc.—to commit themselves to using environmentally friendly materials and production processes. 

Recently, various aliphatic polyesters have become known to be the environmentally friendly materials with biodegradable nature or from a nonpetroleum origin. For example, a copolymer type poly(hydroxyalkanoate), poly(3-hydroxybutyrate-C( -3-hydroxyvalerate) (P(3HB-co-3HV)), which is usually produced through the bacterial... 

Another type (of environmentally friendly, surface finishing process) is the substitution of more environmentally friendly materials. As shown in Part II, there are aheady many materials, particularly metals, appearing on the hazardous substance lists. To name a few, we can mention lead, cadmium, hexavalent chromium, mercury, etc. So far, they have been replaced with more friendly substances. 

The replacement of the petrochemically-derived pol5Hners with more environmentally friendly materials may decrease the environmental impact of cards, cardstock, and card products (5). 

As long as the basic monomers (lactic acid) are produced from renewable resources (carbohydrates) by fermentation, PLA complies with the rising worldwide concept of sustainable development and is classified as an environmentally friendly material. 

Lignocellulosic fibers offer relative advantages such as low cost and density as well as renewability and biodegradability. In addition, their life cycle and processing conditions make them neutral with respect to carbon dioxide emission, and so they are considered as an environmentally friendly material. By contrast to synthetic fibers... 

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