Recent Patents on Materials Science - Volume 3, Issue 2, 2010

To perform pressure measuring or monitoring under harsh environments, robust materials are in demand. The outstanding properties of wide-bandgap semiconductors (WBGS) such as silicon carbide, III-V nitrides, and diamond offer great potential for these materials as micro-electro-mechanical-system (MEMS) pressure sensors toward such purpose. The variations in materials growth and surface/bulk machining techn Read More

Most materials expand on heating and contract on cooling. However, an increasing number of materials with negative thermal expansion (NTE) have been discovered in recent years. In this article, we review the patents related to the synthesis and applications of several important families of negative thermal expansion materials. Particular attention has been paid to the families of NTE materials with open framework structur Read More

Being versatile in nature the clays are being extensively explored for their use in developing selective adsorbent materials, which can be further applied for selective gas separation and purification. In this article, a small preface to different categories of clay based materials has been made and further some selected patents, involving the use of claybased materials for selective gas separation and purification have been revi Read More

In the last decade, number of patents claiming degradable biomaterials have been increasing worldwide. This novel class of biomaterials is intended to be used for implants having temporary function like coronary stents. Biodegradable stents are expected to provide a temporary opening for narrowed arterial vessels until they remodel and progressively disappear thereafter. Metallic biodegradable stents have rec Read More

Synergistic extraction of Zn2+ using butanol from various chloride ion concentrations into 1- phenyl -3- methyl -4- trichloro acetyl pyrazolone -5 (HTcP) in benzene and hexane showed above 80% extraction yield. This was in contrast to 0% extraction of Zn2+ in the absence of butanol as a synergist throughout the pH range 0 - 7 studied. The data presented showed that extraction increases as chloride ion concentration incr Read More

In the following review article we have given a brief overview about the synthesis, characterization and potential applications of various organically modified phosphate-based molecular sieves, metal-oxophenylphosphates and the patent literature of this field (since its discovery). These include the oxophenylphosphates of tin, titanium, niobium, iron, tantalum, calcium and zirconium. The characterization of the materials has bee Read More

This review is about the Argentina Patent number AR 047617B1 published on August 12, 2008. Its inventors are Gaggino Rosana, Arguello Ricardo and Berretta Horacio. The topic is a procedure to make new constructive elements (bricks and plates) by using these recycled plastics: - Low-density polyethylene (LDPE), recycled out of discarded soft drink packs. - Polyethylene-terephthalate (PET), recycled out of discarded sof Read More

Metallic electrodes have received great attention for the last thirty years due to their special characteristics and low price. Some properties such as adhesive properties and reliability remained uncertain. There are numerous published reports and patents in the literature which have been dedicated to thin metallic films. However, it has been seen that these reports most likely do not practicable. The goal of this study is to e Read More

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