Instituto Presbiteriano Mackenzie Patent applications |
Patent application number | Title | Published |
20140266971 | DIGITAL TV ANTENNA - The present antenna comprises a metallic base ( | 09-18-2014 |
20140163047 | COMPOSITION OF A CERAMIC MATRIX WITH A CONTROLLED RELEASE DRUG, A TABLET OBTAINED FROM THE COMPOSITION AND METHODS FOR OBTAINING THE COMPOSITION AND THE TABLET - The present invention refers to a composition of a ceramic matrix defined by pseudoboehmite nanoparticles and constructed for carrying and releasing medications in a controlled manner, in the treatment of human beings and animals presenting an organic deficiency which requires the application of said medications. The present invention further refers to the method for preparing said composition, in the form of a ceramic matrix, and also to the method of incorporating the drug acyclovir to said ceramic matrix, forming a tablet. | 06-12-2014 |
20120115974 | PROCESS FOR OBTAINING HYDROPHILIC MEMBRANES FROM POLY(N-VINYL-2-PYRROLIDONE) PVP - The process comprises the steps of: obtaining diethyl maleate from maleic anhydride; purifying the diethyl maleate and submitting it to two or more distillation steps, for removing remaining contaminants; mixing a load of poly(N-vinyl-2-pyrrolidone)-PVP with a load of the distilled diethyl maleate, forming a mixture having a concentration predetermined as a function of the membrane to be obtained; hot treating the mixture so as to graft the diethyl maleate to the poly(N-vinyl-2-pyrrolidone)-PVP; adding to the heated mixture, the additional components defined by poly(ethylene glycol)-PEG, agar and water, until reaching 100% by weight of a hydrophilic composition; cooling the hydrophilic composition to the ambient temperature; and submitting the cooled hydrophilic composition to electron beam irradiation, obtaining a hydrogel. | 05-10-2012 |