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3M employee and church chorister Art Fry needed something to temporarily mark pages in his hymnal. He was in luck because his colleague, Spencer Silver, accidentally developed a glue that was too weak for other purposes. After initially discouraging consumer response, Post-it Notes became a hit in 1979.
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| Number | Title | Issue Date |
| 8123850 | Environmentally-friendly near infrared reflecting hybrid pigments A hybrid pigment composition is provided including a pigment or a dye and a fibrous clay. The pigment composition has higher reflectance in a near infrared region than a visible light region of the electromagnetic spectrum. The fibrous clay can be selected from paly... | 02/28/2012 |
| 7758691 | Intercalated clays The invention relates to interspersed clay, comprising clay and a seaweed extract used as an interspacing component, particularly an ulva extract. The invention also relates to a method for the preparation thereof and to foodstuffs and nanocomposites comprising said... | 07/20/2010 |
| 7442281 | Kaolin products and their production There is provided a method of producing a kaolin particulate material suitable for use as an improved super-calendered filler. This method includes: (a) preparing an aqueous feed suspension of kaolin; (b) treating the kaolin of the feed suspension by attrition grind... | 10/28/2008 |
| 7429294 | Color compositions The present invention includes a paint or coating composition comprising an organic pigment or dye complexed to the surface of a layered or fibrous inorganic clay. A wide variety of paint colors can be obtained by varying the pH during the preparation as well as by ... | 09/30/2008 |
| 7425235 | Color compositions and methods of manufacture The present invention includes a paint or coating composition comprising an organic pigment or dye complexed to the surface of a layered or fibrous inorganic clay. A wide variety of paint colors can be obtained by varying the pH during the preparation as well as by ... | 09/16/2008 |
| 7419540 | Swellable phyllosilicates A swellable layer silicate is described based on smectite or sepiolite/palygorskite for use in media containing di- or polyvalent cations that reduce swellability, characterized by a swelling volume of about 5 to 50 mL, measured by addition of 2 g layer silicate (ai... | 09/02/2008 |
| 7377975 | Pigment for use in inkjet recording medium coatings and methods Pigment suitable for use in coating compositions for inkjet recording media. Surfaces of an inorganic particulate are interacted with a water-soluble polyvalent metal salt in an aqueous medium. The treated particle surfaces have a significant cationic surface charge... | 05/27/2008 |
| 7370688 | Lost wax moulding method with contact layer A method of manufacture of a multilayer ceramic shell mould whereof at least one contact layer out of a wax master pattern or a part to be manufactured, or other similar material, includes a step of preparing a first slip containing ceramic particles and a binder; a... | 05/13/2008 |
| 7306668 | Kaolin pigment having high brightness and narrow particle size distribution and method of preparation therefor The present invention provides high brightness kaolins exhibiting a Brightness (GE) of at least about 90.0. The hydrous kaolin pigments of the present invention may also have, inter alia, a steepness index (d30/d70×100) of at least about 39 an... | 12/11/2007 |
| 7288585 | Acrylic dispersing agents in nanocomposites The instant invention discloses a composition, preferably a nanocomposite material, comprising (a) a synthetic polymer, (b) a filler such as for example a natural or synthetic phyllosilicate or a mixture of such phyllosilicates, preferably in nanoparticles, and (c) ... | 10/30/2007 |
| 7279037 | Process and products of chinese kaolin Disclosed are methods of processing Chinese kaolin involving providing Chinese kaolin having a desired powder size, delaminating the Chinese kaolin, pulverizing the delaminated Chinese kaolin at least two times, and heating the at least twice pulverized Chinese kaol... | 10/09/2007 |
| 7261770 | Compositions and methods comprising pigments and polyprotic dispersing agents In various embodiments, a pigment composition is provided comprising a base particle and a dispersing agent, the dispersing agent comprising a salt and/or ester of: (i) an amine, alcohol, and/or alkanol amine and (ii) a polyprotic acid, wherein the mole ratio of the... | 08/28/2007 |
| 7258733 | Viscosity stable smectite clay slurries A clay slurry is described using smectite clay, water, and a defined phosphonate additive that is hydrolytically stable over time. The viscosity of the clay slurry remains pourable and relatively unchanged over time compared to prior art slurries. The slurry is usef... | 08/21/2007 |
| 7258732 | Stabilized slurry composition and method of making the same The present invention provides a high solids mineral slurry having long term stability and a method for producing the same. Specifically, the present invention provides a talc slurry having a solids content of up to 65% and a stability against sedimentation for up t... | 08/21/2007 |
| 7250455 | Physical methods of dispersing characteristic use particles and compositions thereof The present invention provides compositions that are capable of being dispersed in a target medium. The compositions include characteristic use particles entrapped within a physical entrapment phase, wherein the physical entrapment phase is dispersible in the target... | 07/31/2007 |
| 7214264 | Hyperplaty clays and their use in paper coating and filling, methods for making same, and paper products having improved brightness The present invention relates to a hydrous kaolin product having improved optical properties, for example, when used in the production of paper products. The present invention comprises an improved barrier coating for paper and a method of making the coated paper. T... | 05/08/2007 |
| 7199175 | Tread for a tire having a rigidity gradient A tire tread comprising a rubber composition based on (phr: parts by weight per hundred parts of elastomer): (i) a diene elastomer; (ii) more than 50 phr of an inorganic filler as reinforcing filler; | 04/03/2007 |
| 7189769 | Physical methods of dispersing characteristic use particles and compositions thereof The present invention provides compositions that are capable of being dispersed in a target medium. The compositions include characteristic use particles entrapped within a physical entrapment phase, wherein the physical entrapment phase is dispersible in the target... | 03/13/2007 |
| 7172651 | Pigment for use in inkjet recording medium coatings and methods Pigment suitable for use in coating compositions for inkjet recording media. Surfaces of an inorganic particulate are interacted with a water-soluble polyvalent metal salt in an aqueous medium. The treated particle surfaces have a significant cationic surface charge... | 02/06/2007 |
| 7156955 | Papermaking process using a specified NSF to silica-based particle ratio The present invention refers to a process for the production of paper from a suspension containing cellulosic fibers, and optionally fillers, comprising adding to the suspension at least one cationic organic polymer and an aqueous silica-containing composition compr... | 01/02/2007 |
| 7153356 | Children's washable paint The invention relates to a washable paint comprising about 2.5 to 10 weight percent of a high molecular weight polyethylene glycol having a molecular weight between 2,000 and 20,000, a water swellable clay in the amount of 0.5 to 1.5 weight percent; and a high molec... | 12/26/2006 |
| 7144475 | Method of making a coated paper The present invention discloses a paper coated with a new coating formulation. The coating formulation comprises a stable pigment slurry prepared without an acid-based dispersant. The coating formulation may be applied to the paper using a variety of methods: In gen... | 12/05/2006 |
| 7144838 | Process for production of titanium dioxide pigment and resin composition containing the pigment The present invention relates to a process for producing titanium dioxide pigment, which comprises a step of coating hydrolysis product of an alkylsilane compound represented by the following formula (1): (where ... | 12/05/2006 |
| 7122080 | Integrated process for simultaneous beneficiation, leaching, and dewatering of kaolin clay suspension The present invention provides an improved method of beneficiating and dewatering kaolin clays. The product of the improved process is a brightened, dewatered kaolin, suitable for use in pigments and paper coating compositions. The improved beneficiation process pro... | 10/17/2006 |
| 7101459 | Printing coated paper A coated printing paper the product of whose basis weight, density, Young's modulus in the machine direction and breaking length in the machine direction is within the range of no less than 1.0×1021g2·N/m6 but not greater than 4.0Ã... | 09/05/2006 |
| 7071260 | Rapid curing aqueous coating agents The invention relates to rapid-curing aqueous coating agents, containing at least one binding agent and at least one water-soluble, quaternary poly(allylamine). Said agents have rapid curing properties and do not discolor during the curing process. Poly(diallyl dial... | 07/04/2006 |
| 7070708 | Magnetorheological fluid resistant to settling in natural rubber devices A MR fluid formulation based upon a silicone liquid vehicle thickened with a treated fumed metal oxide and doped with one or more chemicals having hydrogen-bonding capability for use with natural rubber mounts. The MR fluid is resistant to settling of the magnetizab... | 07/04/2006 |
| 7052541 | Color compositions The present invention includes a paint or coating composition comprising an organic pigment or dye complexed to the surface of a layered or fibrous inorganic clay. A wide variety of paint colors can be obtained by varying the pH during the preparation as well as by ... | 05/30/2006 |
| 7041729 | Structurally viscous powder clearcoat slurry free from organic solvents and external emulsifiers, method for producing the same the use thereof A pseudoplastic powder clearcoat slurry free from organic solvents and external emulsifiers and comprising particles which are solid and/or of high viscosity and are dimensionally stable under storage and application conditions, where the particles have an average s... | 05/09/2006 |
| 7007805 | Hydroxamate composition and method for froth flotation The invention relates to a hydroxamate composition for collection of minerals by froth flotation, the composition including an aqueous mixture of hydroxamate wherein the pH of the composition is at least 11 and a method of collecting mineral values from an aqueous o... | 03/07/2006 |
| 6958091 | Surface-treated pigments Inorganic pigments treated with at least one amide of a fatty acid and an aliphatic amine possess improved processibility and dispersibility in thermoplastic materials, and impart improved properties to thermoplastic compositions containing said surface-treated pigm... | 10/25/2005 |
| 6946028 | Surface-treated pigments Inorganic pigments treated with one or more of the α,α-dialkyl substituted linear or branched carboxylic acids and the salts thereof possess improved processibility and dispersibility in thermoplastic materials, and impart improved properties to thermoplastic comp... | 09/20/2005 |
| 6943210 | Pseudoplastic powdered lacquer slurry free of organic solvents method for production and the use thereof A pseudoplastic powder clearcoat slurry which is free from organic solvents and comprises solid and/or highly viscous, particles which are dimensionally stable under storage and application conditions and have an average size of from 0.8 to 20 μm, at least 99% of t... | 09/13/2005 |
| 6939609 | Filler and pigment The present invention relates to the use of calcium oxalate as a filler or pigment. In particular described herein is a method of reducing the combustion residue of coated paper or cardboard products by replacing at least a part of the conventional pigments and fill... | 09/06/2005 |
| 6921432 | Stable mixtures containing extender pigments A number of stable mixtures are disclosed containing specific combinations and levels of extender pigments and thickeners. These stable mixtures may be employed, inter alia, as a mixture in a method of making paints using prepaints or as a conventional component in ... | 07/26/2005 |
| 6902611 | Heat dissipating coating and method for decreasing the inner temperature of buildings and similar constructions A heat-dissipating aqueous coating composition and a method for making more comfortable the inner temperature of buildings, housings and the like, by applying a thin layer of said aqueous composition on the exterior surfaces of roofs and walls, which composition dis... | 06/07/2005 |
| 6814797 | Gel composition and nail enamel The present invention provides a gel composition capable of maintaining a high viscosity controlling ability over a wide polarity range from a low to a high polarity and also capable of exhibiting an excellent viscosity stability over a prolonged period as well as s... | 11/09/2004 |
| 6811599 | Biodegradable thermoplastic material A biodegradable thermoplastic material comprising a natural polymer, a plasticizer and an exfoliated clay having a layered structure and a cation exchange capacity of from 30-250 milliequivalents per 100 grams and a process of preparing a biodegradable thermoplastic... | 11/02/2004 |
| 6811600 | Chemically bulked kaolin clay pigment compatible with calcium carbonate and manufacture thereof In a process for preparing a white pigment mixture suitable for coating paper wherein a cationically bulked kaolin clay pigment is dispersed in water in the presence of an anionic dispersant and mixed with a calcium carbonate pigment, the improvement which comprises... | 11/02/2004 |
| 6808808 | Coating composition containing surface treated clay mixture, the surface treated clay mixture used therefor, and methods of their use A coating composition and a pigment comprising a surface-treated clay mixture used therein, and, optionally, microspheres, in which the coating composition comprises a curable or hardenable resin system into which is dispersed the pigment. High build, corrosion resi... | 10/26/2004 |
