Class 162/75 - Fat, fatty oil or higher fatty acid

Subclass of Class 162 - Paper making and fiber liberation
Definition: Processes in which a fat, fatty oil or a higher fatty acid
No. of patents: 21
Last issue date: 09/27/2011

Number	Title	Issue Date
8025762	Cooking aid for improving the removal of extractives in pulp production, its production and use The present invention relates to a wood cooking aid which comprises a mixture of fatty acids and rosin acids and/or salts thereof in a ratio which is effective in removing the extractives in pulp production. The invention also relates to a method for preparing a woo...	09/27/2011
6881300	Sizing agent and recording paper comprising sizing agent A recording paper coated or impregnated with a sizing agent containing a water-soluble soybean polysaccharide as an indispensable component, and optionally a cationic polymer and a surfactant, preferably a nonionic surfactant having HLB of 5-15. The water-soluble so...	04/19/2005
6733625	Method and apparatus for treating pulp The present invention relates to a method of treating chemical pulp in order to optimize the consumption of bleaching chemicals and to improve the quality of the pulp. Especially the invention relates to a method according to which filtrate obtained from a suitable ...	05/11/2004
6666950	Process for deinking paper using a triglyceride A method is provided for deinking paper. Repulped paper is treated with a deinking comprising a triglyceride. A preferred triglyceride is beef tallow. The deinking composition reduces foaming and increases brightness....	12/23/2003
6464828	Polyester water-based defoamer Polyester water-based defoamers are prepared by reaction of a dimer fatty acid, a fatty acid and two different polyalkylene polyols, e.g. polypropylene glycol and polyethylene glycol. The resulting polyesters are readily dispersible in water to form a wat...	10/15/2002
6273995	Paper bulking promoter, highly bulky pulp sheet, and process for producing the pulp sheet A paper bulking promoter containing a compound represented by the following formula (1) with which a highly bulky sheet can be obtained without impairing paper strength: RO(EO)m (PO)n H (1) wherein R represents a linear or branched alkyl...	08/14/2001
5876559	Deinking of impact and non-impact printed paper by an agglomeration process Deinking of impact and nonimpact printed paper is accomplished by repulping the printed paper in an alkali aqueous medium containing a deinking composition comprising one or more nonionic surfactants and/or alkanols. The presence of the deinking compositi...	03/02/1999
5871663	Additive composition for reducing anthraquinone requirements in pulping of lignocellulosic material An improved process for delignification of lignocellulosic raw material, such as wood chips, for the production of cellulose pulps for use in the manufacture of paper or paperboard and an improved pulping aid composition for use in said process are disclo...	02/16/1999
5725731	2-oxetanone sizing agents comprising saturated and unsaturated tails, paper made with the 2-oxetanone sizing agents, and use of the paper in high speed converting and reprographic operations A sizing composition for fine paper that does not encounter machine feed problems in high-speed converting or reprographic operations is not solid at 35° C. and comprises a mixture of 2-oxetanone compounds that are the reaction product of a reaction mixt...	03/10/1998
5700351	Antifoams based on oil-in-water emulsions for the paper industry Antifoams based on oil-in-water emulsions, in which the oil phase accounts for from 5 to 50% by weight of the emulsions and consists essentially of a mixture of (a) fatty esters of C12 -C22 -carboxylic acids with monohydric to trihyd...	12/23/1997
5672244	High temperature deinking method using an alkylene oxide adduct In the deinking of feed waste papers comprising magazines and newspapers at a weight ratio of magazine to newspaper of from 5/95 to 60/40, a reclaimed pulp with excellent qualities can be obtained by adjusting the treating temperature in the flotation ste...	09/30/1997
5601752	Defoamer compositions and process for defoaming aqueous systems A defoaming composition of the following formula: ##STR1## wherein R is a hydrocarbon radical of from 10-20 carbon atoms and made be either saturated, unsaturated and either linear or branched in structure; R1 is a reactive alkoxy radical ...	02/11/1997
5518581	Deinking agent for regeneration of waste paper A floatation method for the regeneration of waste paper employs as a deinking agent a reaction product of an alkylene oxide with a mixture of products obtained by the reaction of a natural oil or fat with an alkanolamine in a mole ratio of the natural oil...	05/21/1996
5464502	Anionic sulfonate surfactants in the washing and pulping operation A method for enhancing pulp washing efficiency is disclosed. An anionic sulfonate surfactant is added within the washing or pulping operation to enhance the removal of lignin and spent cooking chemicals from pulp....	11/07/1995
5032224	Method of producing pulp Alkaline pulping (such as Kraft) processes for various lignocellulosic materials, such as coniferous or disiduous wood chips, into pulp is improved by adding relatively small amounts of a digestive additive selected from the group consisting essentially o...	07/16/1991
4871423	Enhanced dithionite bleaching Compositions and a method are disclosed for minimizing brightness reversion of chromophore-containing wood pulps, especially low-cellulose wood pulps, such as groundwood and thermomechanical pulps, which have been reductively bleached or bleached with hyd...	10/03/1989
4673460	Deresination method of wood pulp An improved method for deresination of wood chips or pulp is provided. The method comprises contacting the chips or pulp with an ethoxylated alkyl phenol deresinating composition during processing to reduce the level of natural resins present therein. The...	06/16/1987
4311552	Deinking of newsprint Waste newsprint is defibered in an aqueous bath to which is added a deinking agent. The resulting slurry or pulp is rinsed, drained and formed into paper sheets. The deinking agent is a C14 to C20 alpha olefin sulfonate or a mixture ...	01/19/1982
4227965	Production of hardboard A process for improving the strengths and resistance to water absorption of wood fiber hardboard, along with a lessening in the number of conventional steps, is disclosed. Hardboad is thereby produced by a process wherein drying oil is added to the wood c...	10/14/1980
4107073	Pulp and papermaking additive An antifoam/defoam composition used also as a drainage aid in pulp and papermaking process lines which consists of a water-base composition useful in the pH range 7.0-9.0. The milieu in which the composition is utilized such as e.g. black liquor, may be k...	08/15/1978
3932207	Process for obtaining cellulose from ligno-cellulosic raw materials Prior to cooking, fragments of raw ligno-cellulosic material are impregnated with a solution of a lignin-solubilizing reactant in an organic solvent which has a boiling point higher than the cooking temperature in order for the material to absorb an amoun...	01/13/1976

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Class 162/75 - Fat, fatty oil or higher fatty acid