Abstract: Provided herein are liquid polymer (LP) compositions comprising a synthetic (co)polymer (e.g., an acrylamide (co)polymer), as well as methods for preparing aqueous polymer solutions by combining these LP compositions with an aqueous fluid. The resulting aqueous polymer solutions can have a concentration of a synthetic (co)polymer (e.g., an acrylamide (co)polymer) of from 50 to 15,000 ppm, and a filter ratio of 1.5 or less at 15 psi using a 1.2 ?m filter. Also provided are methods of using these aqueous polymer solutions in oil and gas operations, including enhanced oil recovery.

Abstract: The process for producing a photochromic eyewear lens by forming at least a layer of modified photochromic poly(urea-urethane) by combining photochromic material and the reaction product of a polyurethane pre-polymer and a mixture of diethyltoluene diamine and one or more polyols, plus catalyst. The mixture comprises both NH2 and OH reactive groups, with at least 0.04 equivalent weights of OH reactive species available for reaction with each 1.0 equivalent weight of excess NCO reactive species available in the pre-polymer. The lens comprising the modified photochromic poly(urea-urethane) can exhibit faster fade-back rates and better photochromic performance than lenses with non-modified poly(urea-urethane).

Abstract: Provided herein are liquid polymer (LP) compositions comprising a synthetic (co)polymer (e.g., an acrylamide (co)polymer), as well as methods for preparing aqueous polymer solutions by combining these LP compositions with an aqueous fluid. The resulting aqueous polymer solutions can have a concentration of a synthetic (co)polymer (e.g., an acrylamide (co)polymer) of from 50 to 15,000 ppm, and a filter ratio of 1.5 or less at 15 psi using a 1.2 ?m filter. Also provided are methods of using these aqueous polymer solutions in oil and gas operations, including enhanced oil recovery.

Abstract: A process for producing a photochromic eyewear lens. In one embodiment at least a layer of modified photochromic poly(urea-urethane) is formed by combining photochromic material and the reaction product of a polyurethane pre-polymer and a mixture of diethyltoluene diamine and one or more polyols, plus catalyst. The mixture comprises both NH2 and OH reactive groups, with at least 0.04 equivalent weights of OH reactive species available for reaction with each 1.0 equivalent weight of excess NCO reactive species available in the pre-polymer. The lens comprising the modified photochromic poly(urea-urethane) can exhibit faster fade-back rates and better photochromic performance than lenses with non-modified poly(urea-urethane).

Abstract: Provided herein are liquid polymer (LP) compositions comprising a synthetic (co)polymer (e.g., an acrylamide (co)polymer), as well as methods for preparing aqueous polymer solutions by combining these LP compositions with an aqueous fluid. The resulting aqueous polymer solutions can have a concentration of a synthetic (co)polymer (e.g., an acrylamide (co)polymer) of from 50 to 15,000 ppm, and a filter ratio of 1.5 or less at 15 psi using a 1.2 ?m filter. Also provided are methods of using these aqueous polymer solutions in oil and gas operations, including enhanced oil recovery.

Abstract: Provided herein are liquid polymer (LP) compositions comprising a synthetic (co)polymer (e.g., an acrylamide (co)polymer), as well as methods for preparing aqueous polymer solutions by combining these LP compositions with an aqueous fluid. The resulting aqueous polymer solutions can have a concentration of a synthetic (co)polymer (e.g., an acrylamide (co)polymer) of from 50 to 15,000 ppm, and a filter ratio of 1.5 or less at 15 psi using a 1.2 ?m filter. Also provided are methods of using these aqueous polymer solutions in oil and gas operations, including enhanced oil recovery.

Abstract: Provided herein are liquid polymer (LP) compositions comprising a synthetic (co)polymer (e.g., an acrylamide (co)polymer), as well as methods for preparing aqueous polymer solutions by combining these LP compositions with an aqueous fluid. The resulting aqueous polymer solutions can have a concentration of a synthetic (co)polymer (e.g., an acrylamide (co)polymer) of from 50 to 15,000 ppm, and a filter ratio of 1.5 or less at 15 psi using a 1.2 ?m filter. Also provided are methods of using these aqueous polymer solutions in oil and gas operations, including enhanced oil recovery.

Abstract: A process for producing a photochromic eyewear lens. In one embodiment at least a layer of modified photochromic poly(urea-urethane) is formed by combining photochromic material and the reaction product of a polyurethane pre-polymer and a mixture of diethyltoluene diamine and one or more polyols, plus catalyst. The mixture comprises both NH2 and OH reactive groups, with at least 0.04 equivalent weights of OH reactive species available for reaction with each 1.0 equivalent weight of excess NCO reactive species available in the pre-polymer. The lens comprising the modified photochromic poly(urea-urethane) can exhibit faster fade-back rates and better photochromic performance than lenses with non-modified poly(urea-urethane).

Abstract: Provided herein are liquid polymer (LP) compositions comprising a synthetic (co)polymer (e.g., an acrylamide (co)polymer), as well as methods for preparing aqueous polymer solutions by combining these LP compositions with an aqueous fluid. The resulting aqueous polymer solutions can have a concentration of a synthetic (co)polymer (e.g., an acrylamide (co)polymer) of from 50 to 15,000 ppm, and a filter ratio of 1.5 or less at 15 psi using a 1.2 ?m filter. Also provided are methods of using these aqueous polymer solutions in oil and gas operations, including enhanced oil recovery.

Abstract: The present invention relates to apparel for use in a cold environment comprising: at least one pocket within the inner surface, where said at least one pocket includes a compartment for inserting a heating packet, where said compartment allows for adequate flow of oxygen to activate the heating packet. The compartment may include a mesh compartment. In one exemplary embodiment, the apparel for use in a cold environment may include: a plurality of pockets within the inner surface, where each pocket includes a mesh compartment, where said mesh compartment allows for adequate flow of oxygen to activate the heating packet; and at least one heating packet, where each heating packet is inserted in the mesh compartment of at least one of the pockets to provide thermal heat to the wearer. The apparel may include a glove, a mitten, a sweater, a jacket, a pair of pants, socks or shoes.

Abstract: An application to use of a robotic controller board to manage the influx of data from one or more sensors, and to send that data, in RS232 or serial form, to a Computing Device (see CLAIM VIII). In this case, the images attached are created from a Prototype built for a Palm Handspring Visor Prism PDA with an Eye Module 2 Camera to sense heat, motion, direction and distance from objects from the Scanning device. The Prism also has onboard Clock and Palm OS software that can be used, like Notepad, to take notes, and other built in applications for the user to store data about an incident(s) that the Scanner is recording or had recorded.

Abstract: The use of a robotic controller board to manage the influx of data from one or more sensors, and to send that data, in RS232 or serial form, to a Palm OS Computing Device. In this case, a Handspring Prism with a Camera to sense radiation, heat, motion, direction and distance from objects from the Scanning device. The Prism also has an onboard Clock and Palm OS software that can be used, like Notepad, to take notes, etc. to store data about an incident(s) that the Scanner is or had recorded.