Abstract: The present invention is related to the use of ethylene alkanoate-alkyl acrylate bipolymers with a high randomness monomers distribution, which are synthesized by semicontinuous emulsion polymerization process, characterized because it is carried out using slow addition rate of the pre-emulsion feeding ({dot over (q)}?0.009 kgL·L?1·min?1), stabilized this last one by alkyl glycol ether type surfactants, at temperatures higher than 75° C. and with solids contents above 25 wt %, which avoids the formation of large sequences (blocks) of a same monomer. This structural characteristic gives the ethylene alkanoate-alkyl acrylate bipolymers a high efficiency as chemical agents for removal of complex water/crude oil emulsions of crude oil blends.

Abstract: The wireless electronic retail price tag system is a display system for retail shelves. The wireless electronic retail price tag system is a wireless electronic display that attaches readily on shelves and that is used for displaying product, price, and marketing information items on the shelves. The wireless electronic retail price tag system is adapted to communicate with and to be updated by a master computer located in a secure location. The wireless electronic retail price tag system comprises an LCD, a microcontroller, a remote wireless interface, and a housing.