| Patent application number | Description | Published |
|---|
| 20080217013 | TUNABLE SURFACTANTS FOR OIL RECOVERY APPLICATIONS - The systems and methods described herein provide for modified lignins and other compositions that may be useful as surfactants. These compositions have particular utility for energy-related applications. In embodiments, they may be useful for enhanced oil recovery. In embodiments, they may be useful for extracting bitumen from oil sands. In embodiments, they may be useful for environmental remediation. | 09-11-2008 |
| 20080249339 | Charged Polymers for Ethanol Dehydration - The systems and methods described herein provide for modified lignins and other compositions that may be useful as entrainers. In embodiments, they may be useful for dehydrating ethanol so that it can be used as an energy source. | 10-09-2008 |
| 20080271865 | PIGMENTS FOR COLORED PAPER - Compositions and methods of producing colored paper products and agents for making such products are disclosed. Surface-modified pigments can be manufactured to provide selected coloring in a paper product. The pigment can include filler particles that are bound to one or more dye components with a coupling agent, such as a silane coupling agent or a polymer such as a polycation. The pigment can also be formulated to produce a paper product with better particulate and/or fines retention, and/or higher strength by including components that can interact favorably with the fibers of a paper material. The surface-modified pigments can also be utilized to make coloring formulations such as inks for printers and other applications. | 11-06-2008 |
| 20080281042 | GREASE RESISTANT FORMULATIONS - Disclosed herein are grease-resistant compositions that can include a cellulose-based polymer and a complementary material. Such compositions can be applied to substrates, such as paper-based materials, to impart enhanced grease/oil resistance. The complementary material can act to provide the composition with enhanced fatigue resistance relative to layers that solely utilize the cellulose-based polymer, and can preferably have limited leaching from the composition. Examples of complementary materials include polymers, such as poly(vinyl acetate) and poly(vinyl alcohol), plasticizers, and combinations of these materials. Such compositions can be prepared as a treatment formulation or coating material, which can be dissolved or suspended in a solvent. The compositions may also be melted and applied without a solvent. The formulations can be a water-based system, or an emulsion. The films may be applied to paper products as part of the papermaking process, or as post treatments on a coating machine. | 11-13-2008 |
| 20090165975 | FUNCTIONALIZATION OF PAPER COMPONENTS - Compositions and methods of producing paper-based materials are disclosed. In general, the techniques utilize an amine-containing polymer, such as chitosan, to functionalize one or more components of a mixture used to form materials such as paper-based materials. Such components can include the fibers of a pulp and/or filler particles. In one instance, either the pulp or the filler particles are functionalized, but not both. Such functionalization can improve the qualifies of a paper-based material relative to when such functionalization is not utilized. Techniques and compositions are also described to further improve the qualities of a paper material by utilizing a complementary polymer which can couple with the amine-containing polymer. | 07-02-2009 |
| 20090165976 | EXPANSION AGENTS FOR PAPER-BASED MATERIALS - Compositions and methods of producing paper-based materials are disclosed. The techniques can utilize an amine-containing polymer, such as chitosan, to functionalize one or more components of a mixture used to form materials such as paper-based materials. Such components can include the fibers of a pulp and/or filler particles. Techniques and compositions are also described to further improve the qualities of a paper material by utilizing a complementary polymer which can couple with the amine-containing polymer. Other compositions and methods are directed to forming paper-based materials that are expandable. | 07-02-2009 |
| 20090206040 | SYSTEMS AND METHODS FOR REMOVING FINELY DISPERSED PARTICULATE MATTER FROM A FLUID STREAM - Disclosed herein are systems for removing particulate matter from a fluid, comprising a particle functionalized by attachment of at least one activating group or amine functional group, wherein the modified particle complexes with the particulate matter within the fluid to form a removable complex therein. The particulate matter has preferably been contacted, complexed or reacted with a tethering agent. The system is particularly advantageous to removing particulate matter from a tailing solution. | 08-20-2009 |
| 20090305933 | LOW INTERFACIAL TENSION SURFACTANTS FOR PETROLEUM APPLICATIONS - The invention relates to a class of novel surfactants that have utility in the recovery and/or extraction of oil. | 12-10-2009 |
| 20100252485 | Methods and Apparatus for Removal of Degradation Byproducts and Contaminants From Oil for Use in Preparation of Biodiesel - Methods, particles, and devices are disclosed for filtration of oil for use of the oil in the preparation of biodiesel. Disclosed particles may comprise a substantially inert porous particle with a coating comprising a polymer having amine, amino, and/or imine group(s). | 10-07-2010 |
| 20110065612 | LOW INTERFACIAL TENSION SURFACTANTS FOR PETROLEUM APPLICATIONS - The invention relates to a class of novel surfactants that have utility in the recovery and/or extraction of oil. | 03-17-2011 |
