| ALMA MATER STUDIORUM -- UNIVERSITA' DI BOLOGNA Patent applications |
| Patent application number | Title | Published |
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| 20110275729 | PROCESS FOR CONTROLLED DEGRADATION OF POLYHYDROXYALKANOATES AND PRODUCTS OBTAINABLE THEREFROM - The present invention relates to a process for producing polyhydroxyalkanoate oligomers and/or polymers of reduced molecular weight, which comprises reacting at least one polyhydroxyalkanoate (PHA) with at least one carbonate salt at a temperature of from 50° C. to 300° C., preferably from 120° C. to 200° C. The above reaction allows a controlled degradation of the PHA chains which yields oligomers and/or polymers having a controlled molecular weight, which can be modulated in view of the specific application for which the oligomers and/or polymers are intended. Moreover, during the reaction carbon dioxide evolves which produces a foamed material which can be easily processed on an industrial scale. Additionally, the above oligomers and/or polymers, having an end-group bearing a double bond C═C, particularly a crotonate end-group for PHB, can be subjected to subsequent modifications to obtain a wide variety of functional end-groups, for instance carboxyl, carboxylate, hydroxyl, dihydroxyl, oxirane ring, halogen atom. Moreover, the low molecular weight PHAs may be used in the area of controlled delivery systems in agro-chemistry, in the cosmetic industry, in medicine in the form of nano- or microspheres, in household products and in coating systems. | 11-10-2011 |
| 20110050399 | METHOD AND APPARATUS FOR COMMUNICATION IN ULTRA-WIDE BANDWIDTH RFID SYSTEMS - A method for communication in ultra-wide bandwidth RFID systems includes the steps of generating through a transceiver device an interrogation signal composed of at least a sequence of equally time spaced pulses within a period and transmitting the signal to at least one RFID identification device which generates a response signal and transmits it back to the transceiver device. The interrogation signal is coded according to a numerical coding sequence. The response signal is generated by varying, in each period of the pulse sequence of the interrogation signal, a polarity of pulses using the numerical coding sequence. An apparatus for communication in ultra-wide bandwidth RFID systems includes a transceiver device and a RFID identification device, suitable for communicating with each other. The RFID identification device includes a backscatter modulator suitable for modulating a signal reflected by an antenna of an identification device RFID. | 03-03-2011 |
| 20100201378 | Method and System for Remote Monitoring Deformations of a Structure - A low-cost and non-invasive method for remote monitoring deformations of a structure ( | 08-12-2010 |
| 20100183569 | POROUS COMPOSITE MATERIAL, PREPARATION PROCESS THEREOF AND USE TO REALIZE TISSUE ENGINEERING DEVICES - The present invention refers to a porous composite material, wherein at least one interdispersed biopolymer is present, with a calcium-phosphate mineral component comprising from 50 w/% to 95 w/% of α-tricalcium phosphate (α-TCP, α-Ca | 07-22-2010 |
| 20080306604 | Orthopaedic Device and Procedure to Realize Such a Device - An orthopaedic device ( | 12-11-2008 |
