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| Number | Title | Issue Date |
| 6461475 | Base sheet for wallcoverings A paper-based sheet for wallcoverings that is made in a single pass on a standard paper making machine is described. The sheet has a print side and a barrier side and is made from softwood pulp in an amount of about 15% to about 40% by dry weight; hardwoo... | 10/08/2002 |
| 6440269 | Base sheet for wallcoverings A paper-based sheet for wallcoverings that is made in a single pass on a standard paper making machine is described. The sheet has a print side and a barrier side and is made from softwood pulp in an amount of about 15% to about 40% by dry weight; hardwoo... | 08/27/2002 |
| 5486268 | Oxygen delignification of old corrugated containers Waste cellulosic paper products, for example, old corrugated containers are recycled employing oxygen delingnification in the presence of an alkaline material to produce a recycled pulp of lower kappa number, while maintaining adequate strength in the pul... | 01/23/1996 |
| 5350493 | Oxygen delignification of old corrugated containers Waste cellulosic paper products, for example, old corrugated container are recycled employing oxygen delignification in the presence of an alkaline material to produce a recycled pulp of lower kappa number, while maintaining adequate strength in the pulp.... | 09/27/1994 |
| 5314755 | Method to reduce scaling due to freezing and thawing in concrete A concrete surface having at least a residual amount of sodium fluorophosphate. A method to reduce scaling due to freezing and thawing is also disclosed. The method comprises contacting the surface of a concrete with a system containing at least sodium fl... | 05/24/1994 |
| 5307928 | Six piece appliance package A container for shipping household appliances such as refrigerators, stoves, washers, dryers and the like comprises six separate pieces. The pieces include a top cap, a separate bottom support which may also be in the form of a cap and four separate corne... | 05/03/1994 |
| 5302244 | Oxygen delignification of waste cellulosic paper products Waste cellulosic paper products, for example, old corrugated containers are recycled employing oxygen delignification in the presence of an alkaline material to produce a recycled pulp of lower kappa number, while maintaining adequate strength in the pulp... | 04/12/1994 |
| 5198052 | Method of reshaping a gypsum board core and products made by same A method for making gypsum wall board in which during the production of the board pressure is applied to a portion or all of the board surface to reshape, compress and densify the gypsum core to change the shape or contour the face surface of the gypsum b... | 03/30/1993 |
| 5147503 | Recycling waste cellulosic material with sodium sulphide digestion Waste cellulosic material, for example corrugated paperboard is cooked in an aqueous alkaline cooking liquor to produce a brownstock pulp having a kappa number lower than that of the waste material; combustion of organic materials in the brownstock washin... | 09/15/1992 |
| 5135612 | Methods for making exploded bark products A method for making a shaped product comprising exploded bark. Preferably the shaped product comprises exploded softwood bark having at least 23% cellulose and at least 18% lignin and polyphenols content, based upon the dry weight basis of the bark. One o... | 08/04/1992 |
| 5127954 | Corrosion inhibiting systems, products containing residual amounts of such systems, and methods therefor The corrosion inhibiting systems comprise at least one of the following: sodium fluorophosphate, and a water soluble salt of phosphonic acid derivatives having the general formula Rn R1 N(CH2 PO3 H2) | 07/07/1992 |
| 5116671 | Gypsum board In the improved gypsum board in accordance with this invention, the board has a gypsum core and first and second cover sheets of fibrous material on opposing faces. The core has a first stratum parallel to and adjacent the first cover sheet. This stratum ... | 05/26/1992 |
| 5085929 | Gypsum board In the improved gypsum board in accordance with this invention, the board has a gypsum core and first and second cover sheets of fibrous material on opposing faces. The core has a first stratum parallel to and adjacent the first cover sheet. This stratum ... | 02/04/1992 |
| 5071579 | Corrosion inhibiting systems, products containing residual amounts of such systems, and methods therefor The corrosion inhibiting systems comprise at least one of the following: sodium fluorophosphate, and a water soluble salt of phosphonic acid derivatives having the general formula Rn R1 N(CH2 PO3 H2) | 12/10/1991 |
| 5021122 | Exploded bark products A shaped product comprising exploded bark. Preferably the shaped product comprises exploded softwood bark having at least 23% cellulose and at least 18% lignin and polyphenols content, based upon the dry weight basis of the bark. One of the methods to mak... | 06/04/1991 |
| 4963664 | Processes for the preparation of amides and amines from a material having carboxyl-containing polysaccharides and products therefrom New amines and amides of carboxylated polysaccharides having the nitrogen of the amido and amino groups directly attached to the polysaccharides and method of making same, based on reacting in solution a material having carboxyl-containing polysaccharides... | 10/16/1990 |
| 4952684 | Processes for the preparation of amides and amines from a material having carboxyl-containing polysaccharides and products therefrom New amines and amides of carboxylated polysaccharides having the nitrogen of the amido and amino groups directly attached to the polysaccharides and method of making same, based on reacting in solution a material having carboxyl-containing polysaccharides... | 08/28/1990 |
| 4929454 | Wood treatment composition The present invention relates to a method of preserving wood material and rendering said wood material resistant to biological deterioration, by impregnating a wood material with a composition comprising an aqueous ammoniacal solution of copper and quater... | 05/29/1990 |
| 4925923 | Lignin having chemically bound sulfur and phosphorus groups mainly as thiophosphate, using phosphorus pentasulfide A product comprising, a water insoluble lignin material, at neutral or acid pH, having chemically bound a sulfur(S) content from at least 9.5%, and a phosphorus(P) content from 3.3 to 10%. At least 50% by weight of the S and P content is thiophosphate. In... | 05/15/1990 |
| 4910688 | On-machine sheet material property analysis A method and apparatus for determining on-machine, components of variances over an entire frequency range, of a property of a substantially continuous moving sheet material. At least two property-sensing detectors measure and each provide a signal Y(t) pr... | 03/20/1990 |
| 4906579 | New catalytically oxidized polyglucosic units and methods of making same leading to aldehyde groups on the C-6 position of polyglucosic product and new products therefrom A method to selectively oxidize a polyglucose, on the oxygen of the hydroxy groups of the C-6 position of the glucose rings, while substantially maintaining the degree of polymerization of the polyglycosidic units, comprising heating a 6-sulfonyl polygluc... | 03/06/1990 |
| 4857638 | Lignin having nitrogen and sulfur and process therefor employing thiourea A product comprising lignin material having a N-content of at least 1.86% and a sulfur content of at least 3.1%, an IR in the vicinity of 1550 to 1670 cm-1 having a peak width of at least 60 cm-1. The product is also directed to such... | 08/15/1989 |
| 4836856 | Stabilizing road base composition and method for preparing same A composition for preparing a stabilizing road base and method for preparing same. The composition and method for preparing same comprise 30-50% by volume of gypsum fines having a diameter of less than one inch, 30-70% by volume of at least one aggregate ... | 06/06/1989 |
| 4832190 | Washing machine packing brace and blank therefor The packing brace is inserted into washing machines to maintain the agitator, tub and housing of the machine free from movement relative to each other when transporting the machine. A preferred corrugated fiberboard blank produces a box having a top panel... | 05/23/1989 |
| 4786547 | Exterior insulating sheathing An exterior insulating sheathing which comprises a foam polystyrene ply and a second ply glued to said polystyrene ply throughout. The second ply is preferably a fiberboard but may also be a waferboard. The sheathing is nailable, has a racking load of abo... | 11/22/1988 |
| 4782788 | Litter box with handle and blank therefor A blank and box therefrom forming a shallow disposable litter box. The box has four wall panels extending into bottom panels fastened to form a bottom. The wall panels extend remote from the bottom panels into four top panels for forming a top sealing the... | 11/08/1988 |
| 4770742 | Method for increasing the efficiency of a causticizing process A method for increasing the efficiency of the caustizing process which comprises: (a) adding to a green liquor between 78 and 82% of the stoichiometric amount of lime necessary to react with the amount of Na2 CO3 present in the green... | 09/13/1988 |
| 4759840 | Particle classifier A device for simultaneously separating cohesively bonded particles, by the action of a turbulent air stream, and classifying them according to their size, the device has a horizontal hood connected to the upstream and downstream air ducts. Equipped with a... | 07/26/1988 |
| 4757938 | Blank forming a partition strengthening a box A blank, defining an I beam partition, has a center panel extending at each end edge into a foldably connected substantially L-shaped end panel. The ell extensions of the L-shaped end panels are adjacent one of the side edges of the center panel. At least... | 07/19/1988 |
| 4756837 | Wet, pressure, partial oxidation of black liquor A wet, pressure, partial oxidation process to favor the partial oxidation of black liquor obtained from soda pulping. This is obtained by adjusting the equivalent of sodium ion content of a soda pulping black liquor within the range of about 21 to 26 weig... | 07/12/1988 |
| 4746449 | Deicing product obtained from pulp mill black liquor A deicing product comprising a mixture having, based upon the total weight of solid in said deicing product between 12% and 75% acetate salts, trace amounts and 36% carbonate salts, 1 and 24% formate salts, 1 and 32% pseudolactate salts. The cations of sa... | 05/24/1988 |
| 4744882 | Polycondensates of sulfonated coal tar fractions A simpler and new process for the polycondensation of a sulfonated coal tar fraction comprising: sulfonating a coal tar fraction having a distillation range of 200° to 240° at normal pressure, with an excess of 20-30% mole of sulfuric acid, as opposed t... | 05/17/1988 |
| 4728393 | Methods for obtaining deicers from black liquor A deicing product comprising a mixture having, based upon the total weight of solid in said deicing product between 12% and 75% acetate salts, trace amounts and 36% carbonate salts, 1 and 24% formate salts, 1 and 32% pseudolactate salts. The cations of sa... | 03/01/1988 |
| 4723718 | Chip crushing surfaces The cooperating surfaces defining a pressing nip in a chip crusher are formed with specific patterns to treat the chips by fissuring to facilitate penetration by cooking chemical for the making of pulp for papermaking and the like. One of the surfaces is ... | 02/09/1988 |
| 4718597 | Blank and a box therefrom having extended life The blank produces a box having on at least one of its sides, near its upper portion, a hand grasping aperture substantially vertically centered with respect to the side. Between the aperture of at least one side and the top edge of this side, on the inne... | 01/12/1988 |
| 4715519 | Rolled dispenser for cutting a continuous rolled sheet and a blank therefor The roll dispenser has as a box for receiving a roll of continuous sheet material, having a bottom, a pair of sides oriented longitudinal with respect to the roll, a pair of sides axial with respect to the roll. One of the longitudinal sides is adapted fo... | 12/29/1987 |
| 4714591 | Apparatus and method involving supercritical fluid extraction An autoclave extraction apparatus where a supercritical fluid is used for supercritical fluid extraction of one or several compounds. The supercritical fluid containing the compoound(s) may then be processed in a pressurized, fluidized, bed reactor under ... | 12/22/1987 |
| 4694683 | Method to automatically determine the size distribution of shive and analyzer therefor An apparatus to automatically determine on-line, the shive content and shive size distribution of a wood pulp: The apparatus includes a line having an inlet and outlet, and a plug for closing the line. A motor and gear displaces the line with respect to t... | 09/22/1987 |
| 4654152 | Base mix fabric softener A method to make and a base mix fabric softener composition of a concentrate remaining substantially pumpable after transportation and on standing, said concentrate comprising: (a) between 80 to 20% by weight of at least one quaternary ammonium compound h... | 03/31/1987 |
| 4642268 | Wood substrate having good flame resistance A wood substrate having good flame resistance characteristics while substantially maintaining its adherence characteristics for asphalt products. One surface of the wood substrate has a coating of an inorganic soluble silicate impregnating the wood substr... | 02/10/1987 |
