KEMIRA CHEMICALS INC. Patent applications |
Patent application number | Title | Published |
20130312922 | POLYESTER SURFACTANTS FOR DEINKING - The present invention relates to cost-effective and environmentally friendly polyester surfactants for use in flotation deinking. The improved ink collection of the present invention can result in deinked pulp of high quality and/or yields that has excellent brightness and effective residual ink concentration values. | 11-28-2013 |
20130037229 | POLYESTER SURFACTANTS FOR DEINKING - The present invention relates to cost-effective and environmentally friendly polyester surfactants for use in flotation deinking The improved ink collection of the present invention can result in deinked pulp of high quality and/or yields that has excellent brightness and effective residual ink concentration values. | 02-14-2013 |
20120264863 | POLYMERIC DEFOAMER ADDITIVE - The present invention relates to a cost-effective and environmentally friendly polymeric defoamer formulation for use in various industrial applications that does not contain oil, EBS or free silicone. | 10-18-2012 |
20120032093 | TAGGED SCALE INHIBITOR COMPOSITIONS AND METHODS OF INHIBITING SCALE - Scale inhibitor compositions and methods of inhibiting scale formation generally include a tagged scale inhibiting (co)polymer including at least one scale inhibiting moiety and an imidazole moiety. The imidazole moiety fluoresces at a wavelength of about 424 nm and can be used to detect the amount of scale inhibitor present. | 02-09-2012 |
20110220308 | ACIDIFIED POLYAMIDOAMINE ADHESIVES, METHOD OF MANUFACTURE, AND USE FOR CREPING AND PLAY BOND APPLICATIONS - A paper adhesive composition includes a cationic non-crosslinked acidified solution of a polyamidoamine with the repeating units | 09-15-2011 |
20110174454 | PAPERMAKING METHOD USING ONE OR MORE QUATERNIZED DIALKANOLAMINE FATTY ACID ESTER COMPOUNDS TO CONTROL OPACITY AND PAPER PRODUCT MADE THEREBY - A method for making an opacity relevant grade paper or paperboard product, such as a communication type paper used for printing and writing applications, utilizes an effective amount of quaternized alkanolamine fatty acid ester compounds as an opacification aid to control the optical properties of the paper or paperboard product as a wet-end additive to a papermaking operation. Using the quaternized alkanolamine fatty acid ester compound can improve the opacity of the paper or paperboard product, maintain the opacity of the paper while reducing the use of other opacification aids, such as inorganic fillers and/or pigments, and allow for a reduction in paper grammage without a compromise in opacity. The improvements in paper optical properties are achieved without adversely affecting other characteristics of the paper product such as bulk value, tensile strength, tear index, and the like. | 07-21-2011 |
20110108221 | POLYESTER SURFACTANTS FOR DEINKING - The present invention relates to cost-effective and environmentally friendly polyester surfactants for use in flotation deinking. The improved ink collection of the present invention can result in deinked pulp of high quality and/or yields that has excellent brightness and effective residual ink concentration values. | 05-12-2011 |
20100301255 | Processes For Making Stable Ferric Chloride Solutions - Processes for forming ferric chloride solutions that are stable at relatively low temperatures and suitable for transportation without precipitation are provided. The stable ferric chloride solutions have an iron content of about 16 to about 23 weight percent and a hydrochloric acid content of about 11 to about 17 weight percent, wherein the ferric chloride solution is a stable solution and/or reversibly freezes at −10° C. Also disclosed are processes for reconstituting the stable ferric chlorides solutions to provide a final iron content of 10 to 14 weight percent and lower the concentration of hydrochloric acid contained therein. | 12-02-2010 |
20100292380 | POLYMERIC DEFOAMER ADDITIVE - The present invention relates to a cost-effective and environmentally friendly polymeric defoamer formulation for use in various industrial applications that does not contain oil, EBS or free silicone. | 11-18-2010 |
20100258477 | COMPOSITIONS AND PROCESSES FOR SEPARATION OF BITUMEN FROM OIL SAND ORES - Compositions and processes for separating bitumen from oil sands ore include contacting the oil sand ores with a composition including a carboxylate salt and/or acid and an aqueous liquid carrier. The carboxylate salt and/or acid is a C | 10-14-2010 |
20100218950 | BIOCIDE FOR WELL STIMULATION AND TREATMENT FLUIDS - A well stimulation and or treatment fluid that includes water, other additives, and a biocide consisting of 3,5-dimethyl-1,3,5-thiadiazinane-2-thione in an amount effective to inhibit bacterial growth and minimize antagonistic reactions between the biocide and other additives. Also disclosed are well injection compositions, stimulations, squeezing, waterflood, packing, cement compositions, and methods for cementing. | 09-02-2010 |
20100200239 | FRICTION REDUCING COMPOSITIONS FOR WELL TREATMENT FLUIDS AND METHODS OF USE - Friction reducing compositions for use in well treatment fluids generally include an aqueous fluid; a polymeric friction reducer; and 3,5-dimethyl-1,3,5-thiadiazinane-2-thione. It has been found that the combination of the polymeric friction reducer; and 3,5-dimethyl-1,3,5-thiadiazinane-2-thione unexpectedly and synergistically increases friction reduction and inversion behavior, where applicable. Also disclosed are methods for the fracturing of a subterranean hydrocarbon bearing formation to stimulate the production of the hydrocarbons by injecting the friction reducing composition. | 08-12-2010 |
20100024886 | Sizing Solution Delivery Systems for A Sizing Press and Methods for Reducing Sizing Solution Volumes During Operation Therefof - Sizing solution delivery systems for a sizing press and methods for reducing sizing solution volumes generally include a service tank containing an untreated sizing solution (e.g., starch), a standpipe having a volume capacity of less than the service tank, and an auxiliary chemical tank downstream from the service tank and the standpipe. The standpipe is configured to collect overflow fluid from the size press during use. In this configuration, the volumes of overflow solution provided in the loop are shortened, which reduces sizing solution volumes needed during purging for paper grade changes. In addition, time and equilibrium cycles are concomitantly reduced. Also disclosed are methods for reducing the sizing solution volumes and/or increasing sizing efficiency with the sizing solution delivery systems. | 02-04-2010 |
20090095472 | WELL TREATMENT FLUID COMPOSITIONS AND METHODS OF USE THAT INCLUDE A DELAYED RELEASE PERCARBONATE FORMULATION - A well treatment fluid and method of use includes water, at least one hydratable polymer, an optional crosslinking agent, and a delayed release percarbonate formulation effective to reduce initial viscosity of the fluid after a period of time. Also disclosed are processes for fracturing a subterranean formation. | 04-16-2009 |
20090075848 | ENVIRONMENTALLY COMPATIBLE DEFOAMING COMPOSITION FOR USE IN FLUIDS - Defoaming compositions for reducing the amount of gas present in a fluid such as a cement composition are provided. In an embodiment, a defoaming composition includes a carboxylic acid compound or an ester of a carboxylic acid compound; an alpha olefin compound; and an alcohol compound. | 03-19-2009 |