Abstract: A proppant includes a particle present in an amount of from 90 to 99.5 percent by weight and a polymeric coating disposed about the particle and present in an amount of from 0.5 to 10 percent by weight, based on the total weight of the proppant. The polymeric coating includes the reaction product of an acrylate copolymer and an isocyanate. The acrylate copolymer includes styrene units and has a hydroxyl number of from 20 to 500 mg KOH/g. A method of forming the proppant includes the steps of combining the acrylate copolymer and the isocyanate to react and form the polymeric coating and coating the particle with the polymeric coating to form the proppant.

Abstract: A proppant includes a particle present in an amount of from 90 to 99.5 percent by weight and a polymeric coating disposed about the particle and present in an amount of from 0.5 to 10 percent by weight, based on the total weight of the proppant. The polymeric coating includes the reaction product of an acrylate copolymer and an isocyanate. The acrylate copolymer includes styrene units and has a hydroxyl number of from 20 to 500 mg KOH/g. A method of forming the proppant includes the steps of combining the acrylate copolymer and the isocyanate to react and form the polymeric coating and coating the particle with the polymeric coating to form the proppant.

Abstract: A proppant comprises a particle present in an amount of from 90 to 99.5 percent by weight based on the total weight of the proppant, and a polymeric coating disposed about the particle and present in an amount of from 0.5 to 10 percent by weight based on the total weight of the proppant. The polymeric coating includes the reaction product of an acrylate copolymer comprising styrene units and having a hydroxyl number of from 20 to 500 mg KOH/g or an acid value of from 20 to 500 mg KOH/g, and an epoxy and/or a melamine.

Abstract: The invention is a system for facilitating credit card transactions. The system operates in a setting that includes a merchant platform, a System platform and a subscriber mobile device. The merchant platform is in electronic data communications with the System platform and the subscriber mobile device is in electronic data communication with the System platform. The merchant platform receives transaction information though voice communications from a subscriber and a portion of the transaction information is sent electronically to the System platform. The System platform electronically communicates a subset of the portion to the mobile communications device, and the mobile communications device sending data related to account information to the System platform. The System platform electronically transmitting this account information to a Processor for payment authorization.

Abstract: The invention is a system for facilitating credit card transactions. The system operates in a setting that includes a merchant platform, a System platform and a subscriber mobile device. The merchant platform is in electronic data communications with the System platform and the subscriber mobile device is in electronic data communication with the System platform. The merchant platform receives transaction information though voice communications from a subscriber and a portion of the transaction information is sent electronically to the System platform. The System platform electronically communicates a subset of the portion to the mobile communications device, and the mobile communications device sending data related to account information to the System platform. The System platform electronically transmitting this account information to a Processor for payment authorization.