| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 162160000 | Preservative or antioxidant | 20 |
| 20090014140 | Paper Making Compositions and Processes Using Protein Particulate, Colloidal Pigment, and Latex Polymer Combinations - A composition for treating paper products comprising protein particulate, colloidal pigment, synthetic latex polymer, and preservative is described, as well as methods and an apparatus using the composition for such treatments, and products obtained thereby. The treated paper products preferably have improved strength, water holdout, and/or ink holdout, amongst other advantages and benefits. | 01-15-2009 |
| 20130192781 | BUILDING MATERIAL FOR FORMING AN ARCHITECTURAL SURFACE COVERING AND METHOD FOR PRODUCING THE SAME - A building material for use in forming exterior surface coverings. According to a preferred embodiment, the building material consists of the combination of a paper material, bonding agent, and water. The building material can either be formed directly upon a substrate, such as a wall or ceiling, or otherwise formed as a sheet of material or molding that can thereafter be affixed to a given surface or substrate. The building materials can be customized to have a specific type of color, shape and texture, and can further be utilized in a wide variety of building applications. | 08-01-2013 |
| 162161000 | Biocidal | 18 |
| 20080289785 | Paper substrates containing an antimicrobial compound as well as methods of making and using the same - The invention relates to the papermaking art and, in particular, to the manufacture of paper substrates, paper-containing articles such as file folders, having improved reduction or inhibition in the growth of microbes, mold and/or fungus. | 11-27-2008 |
| 20090314445 | METHOD OF MONITORING MICROBIOLOGICAL DEPOSITS - A method for monitoring one or more deposits including microbiological deposits on a surface immersed in an aqueous medium of a process is disclosed. The method comprises: (a) providing a QCM that is in contact with an aqueous medium, wherein said QCM has a top side surface contacting the aqueous medium, and a second, bottom side surface isolated from the aqueous medium; (b) providing a composition that is selective for one or more deposit types, including microbiological deposits without the use of an antigen or an antibody; (c) applying said composition to the top side of said QCM surface; (d) measuring the rate of deposition of said deposits from the aqueous medium onto the top side of said QCM surface; and (e) optionally taking corrective action to change one or more process parameters, or chemistry applied to the process, or a combination thereof, to achieve a desired result in regards to microbiological deposition. | 12-24-2009 |
| 20100319865 | Pulp for Odor Control - A wood pulp useful for odor control in absorbent products. It incorporates a biocide or a biocide and essential oils. | 12-23-2010 |
| 20110024067 | Anti-Microbial Paper Substrates Useful in Wallboard Tape Applications - This invention relates to paper products and/or substrates suitable for being made into wallboard tape (also may be known as joint tape and/or drywall tape) and having improved reduction or inhibition in the growth of microbes, mold and/or fungus. The paper substrate is characterized by its excellent physical properties including cross direction (CD) tensile, machine (MD) tensile, internal bond, wet tensile, hygroexpansivity, curl, bonding properties, bonding of joint tape to joint compound, etc. The paper product of the invention contains a sizing agent and an antimicrobial compound as well as other optional components including without limitation a binder. The paper product of the invention may be produced by contacting the plurality of cellulose fibers with each of the sizing agent, antimicrobial compound, and optional components at any point in the papermaking process, converting process, and/or post-converting process. Finally, the invention relates to methods of using the paper substrate. | 02-03-2011 |
| 20110056639 | PAPER ARTICLES EXHIBITING LONG TERM STORAGEABILITY AND METHOD FOR MAKING SAME - A method for increasing the long term storageability of a cellulosic paper or paperboard product. The method includes providing a paper or paperboard product made from cellulosic fibers having a basis weight ranging from about 80 to about 300 pounds per 3000 square feet. A holdout material is applied to at least one surface of the paper or paperboard product. The web is then coated with an ink receptive material selected from the group consisting of an aqueous acrylic polymer coating material, an aqueous biocidal agent and a combination of aqueous acrylic polymer coating material and aqueous biocidal agent and dried to provide a paper or paperboard product having enhanced long term storageability. Webs made according to the invention are suitable for making file folders which exhibit improve long term storageability by resisting damage from moisture and/or biological activity. | 03-10-2011 |
| 20110067832 | Paperboard Containing Recycled Fibers and Method of Making the Same - A paperboard comprises from greater than 0% to 100% recycled fibers and has a microorganism count of less than 5,000 colony forming units per gram of paperboard. | 03-24-2011 |
| 20130160958 | BULK AND STIFFNESS ENHANCEMENT IN PAPERMAKING - The present invention provides formulations for papermaking and methods for their use. In embodiments, the formulations include a treatment agent and a fluid carrier, where the treatment agent includes a volatile debonder or a polymer composition exhibiting a lower critical solution temperature. Methods for treating a paper product to increase its bulk or its stiffness are also disclosed, in addition to paper products formed from such methods. | 06-27-2013 |
| 20130186582 | Detection and quantification of nucleic acid to assess microbial biomass in paper defects and machine felts - The invention is directed towards methods and compositions for identifying the specific microorganisms present in a particular potion of a papermaking processes. The method involves obtaining a sample from the process which is such that little or no live examples of the microorganism remain. However because DNA from the organisms is still present, an analysis which identifies portions of DNA specific to the particular organism will correctly identify the microorganism present. This allows for analysis of infestations present on felts or paper sheets which typically no longer have many live microorganisms on them when samples are taken for analysis. | 07-25-2013 |
| 20130186583 | Paperboard Containing Recycled Fibers and Method of Making the Same - A method of making a paper-based product includes substantially continuously treating a papermaking furnish including from greater than 0% to 100% recycled fibers with a biocide, and forming the furnish into the paper-based product. The furnish has a microorganism level of greater than 5,000 colony forming units per gram, and substantially continuously treating the furnish with the biocide reduces the microorganism level so that the paper-based product has a microorganism level of less than 5,000 colony forming units per gram. | 07-25-2013 |
| 20130186584 | METHOD FOR INCREASING THE ADVANTAGES OF STARCH IN PULPED CELLULOSIC MATERIAL IN THE PRODUCTION OF PAPER AND PAPERBOARD - The invention relates to a method for increasing the benefit from starch in pulped, preferably repulped cellulosic material at paper or paperboard manufacturing comprising the steps of (a) pulping a cellulosic material containing a starch; (b) treating the cellulosic material containing the starch with one or more biocides, preferably in the thick stock area; and (h) adding an ionic polymer and preferably, an auxiliary ionic polymer to the cellulosic material; wherein the ionic polymer and the optionally added auxiliary ionic polymer preferably have a different average molecular weight and preferably a different ionicity, wherein the ionicity is the molar content of ionic monomer units relative to the total amount of monomer units. | 07-25-2013 |
| 20130284388 | PROCESS FOR MAKING A STIFFENED PAPER - A process for making a stiffened and rigid paper includes preparing a pulp slurry consisting essentially of water, a cellulosic pulp, a crosslinker, and a starch, and optionally a binder; draining the liquid from the pulp slurry to form a web; and drying the web. Alternatively, a process for making a stiffened and rigid paper includes the step of adding at least one crosslinker at one or more locations, such as at the wet-end, dry-end, or at both ends of the papermaking process. Suitable crosslinkers include a glyoxal-containing crosslinker, a gluteraldehyde, a polyfunctional aziridine, a zirconium-containing crosslinker, a titanium-containing crosslinker, and an epichlorohydrin, and mixtures thereof. When a binder is employed, it can be added either in the dry or wet form. Provided is a neutral or alkaline process to produce a paper product having the improved mechanical properties of a laminated product in the Z-direction, without a lamination step. | 10-31-2013 |
| 20130319627 | Methods Of Preserving Starch In Pulp And Controlling Calcium Precipitation And/Or Scaling - Methods to preserve starch present in pulp are provided and also methods to control calcium precipitation and/or scaling in digesters or BOD systems. The methods can be performed as part of a papermaking process. Process water containing pulp can be treated with a chloramine. Process water containing pulp with native starch can receive a double treatment with at least one biocide, such as chloramine, and at least one oxidant, such as sodium hypochlorite. The treatment can be performed in any suitable manner. The treatment can be performed at one or more stages or locations in a papermaking system. A target residual chloramine value or range can be achieved by the treatment. Packaging sheets/boards and other paper products manufactured using the methods provided exhibit superior strength and other desirable characteristics. | 12-05-2013 |
| 20140083635 | PROCESS OF MAKING ANTIBACTERIAL COATING AND ANTIBACTERIAL PAPER WITH SAME, AND ANTIBACTERIAL PAPER - Process for making an antibacterial coating includes the following steps. A solution containing titanium dioxide particles and a dispersant is prepared. A mechanical stirring method is employed to prepare a preliminary titanium dioxide dispersed solution. An ultrasonic agitation method is employed to prepare a nanometer titanium dioxide dispersed solution, an average particle size of the titanium dioxide particles being less than or equal to 200 nanometers. Lastly, the nanometer titanium dioxide dispersed solution is mixed with a papermaking coating to prepare an antibacterial coating. | 03-27-2014 |
| 20140246160 | Methods Of Preserving Starch In Pulp And Controlling Calcium Precipitation And/Or Scaling - Methods to preserve starch present in pulp are provided and also methods to control calcium precipitation and/or scaling in digesters or BOD systems. The methods can be performed as part of a papermaking process. Process water containing pulp can be treated with a chloramine. Process water containing pulp with native starch can receive a double treatment with at least one biocide, such as chloramine, and at least one oxidant, such as sodium hypochlorite. The treatment can be performed in any suitable manner. The treatment can be performed at one or more stages or locations in a papermaking system. A target residual chloramine value or range can be achieved by the treatment. Packaging sheets/boards and other paper products manufactured using the methods provided exhibit superior strength and other desirable characteristics. | 09-04-2014 |
| 20140305606 | SIZING COMPOSITION - A sizing composition includes from about 3 kg/ton to about 15 kg/ton of calcium propionate, an additive, and a balance of water. The additive is selected from the group consisting of starch, an optical brightener, a biocide, a defoamer, a surface size agent, a wet strength additive, and combinations thereof. The sizing composition has a pH ranging from 7 to 8. | 10-16-2014 |
| 20150020986 | Paper-Based Malleable Dough for Moulding and Sculpting Applications - Embodiments of a process for manufacturing a paper-based malleable dough for moulding and sculpting applications are described herein that include: soaking and mixing shredded paper in water, yielding a paper dough; and adding and mixing at least one setting-type joint compound with the paper dough. The at-least one setting type compound is added in a weight ratio of setting type compound to shredded paper of between about 11:8 to 17:8. The paper-based malleable dough allows creating objects that are ecological, durable, malleable and lightweight and that brings out the creative side of the user. | 01-22-2015 |
| 20150027649 | Paper substrates and articles containing antimicrobial components as well as methods of making and using the same - The invention relates to the papermaking art and, in particular, to the manufacture of paper substrates, paper-containing articles such as file folders, having improved reduction or inhibition in the growth of microbes, mold and/or fungus. | 01-29-2015 |
| 20160040363 | PRODUCING ANTIMICROBIAL PAPER - A method for producing antimicrobial paper pulp is provided. The method includes steps of obtaining paper pulp, reducing water content and temperature of the paper pulp, and refining the paper pulp having reduced water content and temperature to improve properties of the paper pulp. The refining may be performed using a refiner with rotating and stationary cutters. The nanocomposite suspension may be added to the refined paper pulp to produce antimicrobial paper pulp. The antimicrobial paper pulp may be drained and pressed to produce paper by applying oil to reduce moisture content of the paper. The paper may be dried without using vapor. | 02-11-2016 |
