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| Number | Title | Issue Date |
| 4016029 | Process for delignifying and bleaching cellulose pulp A process is provided for delignifying and bleaching cellulose pulp, which comprises carrying out the delignification and bleaching with oxygen and alkali in the presence of sodium bicarbonate, while removing carbon dioxide from the gas phase as required ... | 04/05/1977 |
| 4014736 | Process for treating a slurry of cellulosic material A slurry of cellulosic material is diluted to a flowable consistency and subjected to a pressure differential on a permeable surface to increase the slurry consistency to a value between the consistency of the diluted slurry and the consistency of th slur... | 03/29/1977 |
| 4013505 | Method of deinking printed wastepapers A method for deinking printed wastepapers in a system of separators through which printed wastepapers, previously impregnated with surface-active agents and alkalis, and repulped in the presence of an organic hydrocarbon compound and high-adsorptive flake... | 03/22/1977 |
| 4012279 | Process of producing pulp, for manufacture of fiberboard, in a closed backwater system Lignocellulose fiber containing chips, preheated with steam liberated from a previous chip defibration, are dewatered and then defibrated in an atmosphere of saturated steam and in the presence of backwater and suspended in backwater to form a pulp suspen... | 03/15/1977 |
| 4008120 | Process of delignification and bleaching a lignocellulose product The delignification and bleaching of lignocellulosic products is effected by mixing an aqueous suspension of the lignocellulosic product with a chlorine-containing substance and an oxygen-containing substance, simultaneously or sequentially, and they, by ... | 02/15/1977 |
| 4004967 | Bleaching cellulose pulp with oxygen in the presence of formaldehyde When bleaching wood pulp with oxygen the result can be improved if formaldehyde, methanol, ethanol, isopropanol, glycerol, sorbitol, formic acid, or acetone is added to the pulp.... | 01/25/1977 |
| 4002526 | Oxygen-alkali delignification of low consistency wood pulp An process for increasing the yields of wood pulp and improving the viscosity of the pulp during oxygen-alkali delignification is provided whereby, in a wood pulp at a consistency of about 1-10%, there are present, in the pulp to be delignified, small amo... | 01/11/1977 |
| 3996325 | Preparation of a three layer, fire retardant particleboard Fire retardant reconstituted cellulosic products are produced having fire retardancy substantially equal to conventional fire retardant products by impregnation of a portion of bark with a fire retardant and mixing said impregnated bark portion with anoth... | 12/07/1976 |
| 3992250 | Method for bleaching of high consistency cellulosic pulp A method for bleaching pulp comprising the steps of dewatering or thickening the pulp to a solids concentration of about 30-40 percent, and then treating the pulp with a first treatment liquid, in a vessel, having between 3 and 10 grams of chlorine gas di... | 11/16/1976 |
| 3988486 | Method for accelerating the crystallization and removal of tartar from a tartarous beverage A tartarous beverage, such as wine, containing a tartrate to be removed therefrom is conveyed from a storage container through a conduit under pressure into a first module having a semipermeable membrane. The semipermeable membrane forms two streams, a ta... | 10/26/1976 |
| 3981765 | Treatment of wood chips with an alkali metal borohydride solution followed by mechanical defibration A chemi-mechanical process for producing unbleached pulp with improved yields at high brightness including impregnating a lignocellulosic material in the form of wood chips with an alkaline solution containing an alkali metal borohydride in an amount over... | 09/21/1976 |
| 3979253 | Method for dispersing glass fibers for the preparation of glass filter media Beta Glass fibers are dispersed in a solution containing hydrochloric acid nd a hydrophobic fumed silicon dioxide treated with a silane thereby forming a slurry which is subjected to a sonic probe whereafter other glass fibers are mixed into said slurry an... | 09/07/1976 |
| 3976800 | Process for the manufactue of biscuits A high-protein, low-carbohydrate, low-fat bar is produced by kneading A. a melt of edible fat and lecithin or a vegetable phosphatide with B. a food powder having protein content of at least 60% by weight based on solids and a carbohydrate content of 5 to 35% by we... | 08/24/1976 |
| 3976538 | Method for bleaching of cellulosic pulp A first portion of bleaching liquid is passed through cellulosic pulp in a bleaching zone at a first level with respect to the pulp feed direction and withdrawn through transversely spaced strainer means located at about said first level so that the passa... | 08/24/1976 |
| 3975232 | Three stage process for pulping lignocellulosic materials including a cyanide ion containing first stage A three stage process for pulping lignocellulosic materials, preferably softwood chips comprising: as a first stage treating the lignocellulosic material with a cyanide ion-containing solution at a pH between 7 and 12 to form cyanohydrin groups; in a seco... | 08/17/1976 |
| 3975270 | Process for recovering usable olive-processing liquor from olive-processing waste solution Useful olive-processing liquor is recovered from olive-processing waste solution by a process wherein lime, charcoal, and calcium carbonate are successively added to the olive-processing waste solution to form a mixture and the mixture is allowed to settl... | 08/17/1976 |
| 3974025 | Absorbent paper having imprinted thereon a semi-twill, fabric knuckle pattern prior to final drying A low-density, soft, bulky and absorbent paper sheet exhibiting a diamond-shaped pattern in its surface after creping, said paper being characterized by having a cross-directional stretch of from about 2 to about 6 percent, as well as improved softness, s... | 08/10/1976 |
| 3973047 | Process of dehydrating vegetables Vegetable or vegetable pieces are subjected to partial dehydration with hot air to a moisture content less than about 30% and are thereafter contacted with a hot humid gaseous medium (preferably air) having a dry bulb temperature from about 140°F to abou... | 08/03/1976 |
| 3969184 | Digestion odor control The invention relates to a continuous method of making cellulosic pulp from wood chips within a range of yield from 65 to 90 per cent by digestion with a digestion liquor containing Na2 S and Na2 CO3. The digestion is effe... | 07/13/1976 |
| 3966997 | Chocolate solid wafer and method of manufacture A substantially unsweetened homogeneous solid chocolate composition useful as an intermediate in producing chocolate fudge toppings and chocolate variegating sauces for ice cream and method for preparation thereof which composition consists essentially of... | 06/29/1976 |
| 3964961 | Method for storing bagasse A method of storing bagasse by piling the bagasse up into a stack on a base structure protected against ground water and having good run-off of surface water. The stack is built up with a substantially horizontal layer structure, wherein each successive l... | 06/22/1976 |
| 3963561 | Recirculation of unconsumed oxygen pulp bleaching gas A method for treating cooked fiber pulp as it comes from a continuous digester. The cooked pulp is bleached by intensively mixing the pulp with an oxygen containing gas and reacting the mixture while moving the mixed mass upwardly through a funnel shaped ... | 06/15/1976 |
| 3962030 | Bleaching wood pulp with sodium hydrosulfite in the presence of hexamethylenetetramine A process for bleaching wood pulp with sodium hydrosulfite in the presence of at least 2 weight percent of hexamethylenetetramine based upon the weight of sodium hydrosulfite.... | 06/08/1976 |
| 3960649 | Wood pulp bleaching composition containing sodium hydrosulfite and hexamethylenetetramine An aqueous composition for bleaching wood pulp containing sodium hydrosulfite, and at least 2 weight percent hexamethylenetetramine based upon the weight of sodium hydrosulfite, wherein the solution has a pH between about 4 and about 11. The hexamethylene... | 06/01/1976 |
| 3959516 | Process for producing a solid chocolate composition suitable for coating ice cream A process is provided for the production of a solid chocolate composition which can be dispersed in vegetable oil to produce a chocolate liquid suitable for coating ice cream. The process comprises milling a mixture of cocoa powder with or without added c... | 05/25/1976 |
| 3958033 | Shelf stable emulsions A shelf-stable, protein free emulsion having a pH within the range of 6-8 consisting of 0.1-1 part neutral type fat, 1 part water, 2 parts sugar and about 0.25% to about 7% by weight of an emulsufier selected from sodium stearyl fumarate and sodium succin... | 05/18/1976 |
| 3958024 | Process for the production of a chocolate sweet containing an inner sugar crust To make a chocolate sweet with a liquid filling separated by a sugar crust from the chocolate, a quantity of an aqueous solution, which is unsaturated with sugar but contains a quantity of sugar so as to provide a saturation point at least as high as 30°... | 05/18/1976 |
| 3954556 | Inorganic composition for high temperature use and method of forming a millboard therefrom An inorganic composition useful as material for Lehr rolls at temperatures above 500°C consists essentially of 15-45% chrysotile asbestos, 40-75% talc component and 2-35% inorganic binder. The composition is also used in manufacturing millboard by formin... | 05/04/1976 |
| 3951734 | Ammonia-ketone pulping process A method of employing the combination of ammonia and ketones as the cooking chemicals in a digester of a pulping process. This method results in a pulp which has a higher yield than the kraft process yet is characterized by kraft's high strength and fair ... | 04/20/1976 |
| 3951733 | Delignification and bleaching of wood pulp with oxygen Cellulose pulp, in the form of an alkaline, dilute aqueous slurry, is continuously bleached and delignified by oxygen dissolved and intimately dispersed and subdivided into the slurry so that no agglomerated bubbles are formed. The alkaline, dilute slurry... | 04/20/1976 |
| 3951732 | Delignification and bleaching of wood pulp with oxygen in the presence of triethanolamine Wood pulp is delignified and bleached with oxygen in the presence of a mixture of an alkali, a magnesium compound and TEA.... | 04/20/1976 |
| 3951735 | Process for preparing gypsum board A gypsum wallboard or plasterboard having a high mechanical strength, especially high impact strength, and a large bulk density is prepared from a mixture consisting essentially of calcined gypsum, cellulosic fibers, asbestos fibers, a setting retardant f... | 04/20/1976 |
| 3949099 | Method for pasteurizing a liquid Liquid is heated to a pasteurization temperature, pumped into a holding zone wherein the liquid is divided into a plurality of slugs and the slugs are then impelled through the holding zone by mechanical action, such as piston action, applied to each indi... | 04/06/1976 |
| 3944463 | Pulping of lignocellulosic material with oxygen in two stages at increasing pH A process is provided for producing cellulose pulp of high brightness, which comprises pulping lignocellulosic material such as wood with oxygen under superatmospheric pressure in two stages, in the first at a pH within the range from about 6 to about 9, ... | 03/16/1976 |
| 3944678 | Process for the fast cooking of metered quantities of foodstuff A process for cooking quantities of foodstuffs comprises introduction of food and water into a pressurized cooking chamber where the food is cooked under pressure at temperatures of over 100°C. The cooked food is then conveyed into a centrifugal separato... | 03/16/1976 |
| 3941649 | Process for obtaining a predetermined Kappa number in sulfate pulping A fully controllable process is provided for the manufacture of sulfate pulp having a predetermined degree of delignification and therefore a predetermined Kappa number. A sample of the pulping liquor is taken at a stage at which the preliminary alkali-co... | 03/02/1976 |
| 3937647 | Method of increasing cellulosic pulp yields in an alkaline digestion process Increased pulp yields are obtained by alkaline digestion of cellulosic material until a pulp yield of not above 65% is obtained, lowering the pH of the digestion liquid is lowered to allow 11 causing organic substances to precipitate from the digestion li... | 02/10/1976 |
| 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 |
| 3932206 | Process for de-inking printed waste cellulosic fibrous material Waste printed, cellulosic fibrous material is deinked by using a biodegradable de-inking agent which is non-toxic to aquatic life, said agent comprising an ethoxylated aliphatic mono-ol having about 14-15 carbon atoms in the aliphatic chain and about 8-12... | 01/13/1976 |
| 3932210 | Method of dispersing hydroxymethyl cellulose xanthate fibers Non-woven fabric or paper-like material having excellent properties can be produced from fibers comprising hydroxymethyl cellulose xanthate by treating the fibers with a water soluble acid salt of aminoethylethanolamine monostearylamide.... | 01/13/1976 |
