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| Number | Title | Issue Date |
| 8133354 | Acoustic ceiling tiles made with paper processing waste A composition and process suitable for making acoustic tiles are disclosed. Certain embodiments of the composition comprise: perlite; inorganic material selected from the group consisting of calcium sulfate, calcium carbonate, clay and mixtures thereof; a binder sel... | 03/13/2012 |
| 7326317 | Lignocellulose product The invention concerns a process for the production of activated fibres or particles having self-binding properties comprising the steps of treating fibers or particles of lignocellulose containing material by contacting them with an oxidant during a time sufficient... | 02/05/2008 |
| 7223311 | Method and apparatus for fabricating gypsum board A method enables gypsum/fiber board to be manufactured such that recessed areas are formed on the same face of the cut wallboard on all four edges without interrupting the production line. The system accommodates different lengths of cut wallboard as the lateral cut... | 05/29/2007 |
| 7087360 | Package structure of planographic printing plates and interleaf paper for packaging the same An object of the present invention is to provide an interleaf paper for packaging planographic printing plates and preventing breakage of the plate-making layer at the time packaging, and a planographic printing plate package structure using a plurality of the above... | 08/08/2006 |
| 7045036 | Method and apparatus for producing sized paper of board A method and assembly is disclosed for manufacturing a sized web of paper or paperboard, the method comprising the steps of first forming the web at a headbox (1) from a stock comprising at least water and fiber, then pressing the web for water drainage, and ... | 05/16/2006 |
| 7029553 | Urea sulfate and urea hydrochloride in paper and pulp processing The present invention relates to the use of urea sulfate or urea hydrochloride, or both, in process streams in the paper and pulping industries to control pH, to bring about flocculation or precipitation of various materials, and to replace all or part of the sulfur... | 04/18/2006 |
| 6869471 | Process for sizing paper and sizing composition The present invention relates to a process for sizing paper comprising providing an aqueous suspension comprising cellulosic fibres, dewatering said aqueous suspension thereby forming a paper web, said process comprising adding to the cellulosic suspension an aqueou... | 03/22/2005 |
| 6841039 | Composition and method for the production of planar structures, especially structures made of paper or cardboard This invention relates to a novel composition for the production of planar structures, whereby said composition is based on a cationic amylaceous material and a sulphonated amylaceous such as sulphocarboxylate. The composition can exist in the form of a pulverulent ... | 01/11/2005 |
| 6702922 | Papers for use in decorative laminates and methods of making the same A process for forming an abrasion resistant, decorative sheet which comprises forming a web of cellulosic fibers on a papermaking machine and applying a coating suspension including an abrasion-resistant grit and decorative inclusion particles to the uppe... | 03/09/2004 |
| 6692615 | Method of making a slurry An organic substrate is manufactured from recycled waste paper, cotton fiber and cotton gin waste, and gypsum. The recycled waste products are combined to form a slurry mixture for processing by conventional paper making machinery into a substrate that ma... | 02/17/2004 |
| 6610136 | Pigments for ink jet paper Aggregated mineral pigments (such as kaolin clay pigments) having a high surface area and useful in coating and filling compositions for ink jet printing media are manufactured by dry grinding an unground mineral composition starting material and then opt... | 08/26/2003 |
| 6475341 | Process for making paper Paper is made by mixing anionic starch, carboxyl methyl cellulose or other polymeric binder into a cellulosic thin stock together with a cationic inorganic or polymeric coagulant and then flocculating the suspension by means of an anionic swelling clay or... | 11/05/2002 |
| 6162329 | Soft tissue paper having a softening composition containing an electrolyte deposited thereon Disclosed is a composition for softening an absorbent tissue and tissue structures softened using the composition. The composition includes an effective amount of a softening active ingredient; a vehicle in which the softening active ingredient is dispers... | 12/19/2000 |
| 6159335 | Method for treating pulp to reduce disintegration energy A method of reducing the amount of energy required to disintegrate comminution sheets formed from cellulose fibers without adversely affecting the absorbency, strength, or fluid transport properties of airfelts formed from the comminuted treated fibers. T... | 12/12/2000 |
| 6149831 | Perlite-based insulation board An insulation board suitable for use as a roof insulating board has a density between about 8 and about 15 pounds per cubic foot; a MOR/density ratio of at least 10.5 to 1 and includes, by dry weight, between about 45% and about 76% expanded perlite; betw... | 11/21/2000 |
| 6083317 | Stabilized calcium carbonate composition using sodium silicate and one or more weak acids or alum and uses therefor An improved form of calcium carbonate which is acid resistant to enable its use as a filler material in the making of neutral to weakly acidic paper, and a process for producing this acid-resistant calcium carbonate is provided. This acid-resistant calciu... | 07/04/2000 |
| 6074530 | Method for enhancing the anti-skid or friction properties of a cellulosic fiber The invention relates to a method for enhancing the anti-skid or friction properties of a cellulosic fiber, by transporting cellulosic fiber from a machine chest and then to a stuff box and then to a headbox; and contacting a suspension of the cellulosic ... | 06/13/2000 |
| 6010596 | Gypsum wood fiber product having improved water resistance An improved water resistant gypsum board is made by adding an aqueous wax emulsion containing a cationic surfactant to an aqueous slurry containing calcium sulfate and host particles at a slurry temperature which maintains calcium sulfate hemihydrate crys... | 01/04/2000 |
| 5976322 | Process for producing paper and paperboard having high mechanical strength Process for producing paper and paperboard, which comprises adding to a cellulose pulp stock a natural starch and an aluminum and/or iron salt. The so obtained cellulose pulp stock is then submitted to dewatering and subsequent calendering according to co... | 11/02/1999 |
| 5958185 | Soft filled tissue paper with biased surface properties Soft, strong, and low dusting tissue paper webs useful in the manufacture of soft, absorbent sanitary products such as bath tissue, facial tissue, and absorbent towels are disclosed. The tissue papers comprise fibers such as wood pulp and a non-cellulosic... | 09/28/1999 |
| 5958188 | Processes of making paper Paper is made by a dual soluble polymer process in which a cellulosic suspension which usually contains alum or cationic coagulant is first flocculated with a high intrinsic viscosity cationic synthetic polymer or cationic starch and, after shearing, the ... | 09/28/1999 |
| 5938970 | Polynucleate metal hydroxide compounds and method for their preparation Polynucleate metal hydroxide anionic compounds and method for their production. The compounds have the formula: Ma Nb (OH)c Xd Ye Zf.(H2 O)g wherein M is a tri- or more valent m... | 08/17/1999 |
| 5928470 | Method for filling and coating cellulose fibers Metal oxides or metal hydroxides, such as titanium dioxide, are incorporated into papermaking fibers by absorbing an organometallic compound into the fiber walls while the fibers are dry or slurried with a non-aqueous solvent and thereafter contacting the... | 07/27/1999 |
| 5891305 | Process for the manufacture of paper The invention relates to a new process for the manufacture of paper which employs, in the fibrous composition, a cationic starch exhibiting a high level of fixed nitrogen, namely greater than 0.95%, and a polyaluminum compound, such as a (basic) aluminum ... | 04/06/1999 |
| 5882396 | Pigments for paper coating compositions An inorganic particulate material suitable for use as a pigment material in a paper coating composition has a particle size distribution which when represented as a graph of percentage of weight of particles having an equivalent spherical diameter (esd) o... | 03/16/1999 |
| 5865952 | Process for making basic sodium and/or potassium aluminum sulphates and for making paper with such A process in which a leach liquor of Al2 (SO4)3 +K2 SO4 +Fe2 SO4 and other sulphates is introduced to a surface-cooled crystallizer that drops the Al2 (SO4)... | 02/02/1999 |
| 5846384 | Process for the production of paper A process for the production of paper from a suspension of cellulose containing fibers, and optional fillers, which comprises adding an aluminum compound and anionic inorganic particles to the suspension, forming and draining the suspension on a wire, whe... | 12/08/1998 |
| 5795515 | Method of producing formed articles of a fiber reinforced, hydraulically setting material At the method of producing formed articles of a fiber reinforced, hydraulically setting material the organic fibers are mineralized by aluminum sulfate and silica, the mixture processed with excess water to multilayered products, the laminates arrived the... | 08/18/1998 |
| 5779859 | Method of improving filler retention in papermaking A method for improving retention of filler in papermaking systems includes a split stream feed to either the head box or fan pump of a papermaking system. The split stream divides the pulp flow into two streams, one stream having a retention aid and fille... | 07/14/1998 |
| 5723023 | Method of papermaking using modified cationic starch The method of making paper wherein the use of a selected ether or ester modified, cationic starch as an additive in the papermaking wet end provides significantly improves retention and drainage properties particularly in alkaline microparticle containing... | 03/03/1998 |
| 5700352 | Process for including a fine particulate filler into tissue paper using an anionic polyelectrolyte A process for incorporating a fine particulate filler such as kaolin clay into tissue paper is disclosed. The process results in strong, soft, and low dusting tissue paper webs useful in the manufacture of soft, absorbent sanitary products such as bath ti... | 12/23/1997 |
| 5695609 | Process for producing paper The invention relates to a process for the production of paper by adding to an aqueous fiber suspension, which possibly contains a filler, auxiliary agents for improving retention and/or dewatering, the auxiliary agents being a cationic long-chain polyacr... | 12/09/1997 |
| 5676796 | Manufacture of paper Paper is made by forming a thick stock cellulosic suspension, flocculating the thick stock by adding a relatively high molecular weight and relatively low cationic charge density polymer, diluting the flocculated thick stock to form a thin stock and then ... | 10/14/1997 |
| 5672249 | Process for including a fine particulate filler into tissue paper using starch A process for incorporating a fine particulate filler such as kaolin clay into tissue paper is disclosed. The process results in strong, soft, and low dusting tissue paper webs useful in the manufacture of soft, absorbent sanitary products such as bath ti... | 09/30/1997 |
| 5632848 | Continuous processing equipment for making fiberboard A continuous manufacturing line for preparing gypsum fiberboard is provided. The manufacturing line includes equipment for admixing hydratable gypsum, paper, and a quantity of water to form a substantially homogenous slurry, dewatering apparatus for remov... | 05/27/1997 |
| 5601921 | Aluminium-salt impregnated fibres, a method for their manufacture, fluff consisting of such fibres, and the use of the fibres as absorption material Aluminum salt impregnated organic pulp fibers for use in absorption articles are disclosed. The fibers have an aluminum content of 3-100 g/kg based on the weight of dry pulp. The pulp fibers are in the form of fluff and, when disposed in a layer, exhibit ... | 02/11/1997 |
| 5599388 | Acid resistant calcium carbonate composition containing an aluminum salt, uses therefor and processes for its production An improved form of calcium carbonate which is acid resistant to enable its use as a filler material in the making of neutral to weakly acid paper, and a process for producing this acid resistant calcium carbonate are provided. This acid resistant calcium... | 02/04/1997 |
| 5584923 | Surface modified calcium carbonate composition and uses therefor An improved form of calcium carbonate which is acid resistant to enable its use as a filler material in the making of neutral to weakly acid paper, and a process for producing this acid-resistant calcium carbonate is provided. This acid-resistant calcium ... | 12/17/1996 |
| 5534057 | Process for treating kaolin clays for pitch control and the treated clays A process for beneficiating crude kaolin clay under defined conditions with a sufficient amount and concentration of aluminum chlorhydrate (0.5 to about 5.0 active wt. %) to improve the clay's ability to adsorb pitch during the process of making paper. Th... | 07/09/1996 |
| 5531821 | Surface modified calcium carbonate composition and uses therefor An improved form of calcium carbonate which is acid resistant to enable its use as a filler material in the making of neutral to weakly acid paper, and a process for producing this acid-resistant calcium carbonate is provided. This acid-resistant calcium ... | 07/02/1996 |
