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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 |
| 7399804 | Composites and methods for their production Intercalates and exfoliates formed from layered materials and dendritic polymers are disclosed, together with the uses of these materials, e.g. in producing composite materials. The dispersion of layered materials in a dendritic polymer matrix (hyperbranched polymer... | 07/15/2008 |
| 7368496 | Nanocomposite composition having super barrier property and article using the same A nanocomposite composition having superior barrier properties and an article comprising the same are provided. The nanocomposite composition includes: a polyolefin resin; a nanocomposite having barrier properties, and including intercalated clay and one or more res... | 05/06/2008 |
| 7279521 | Nylon nanocomposites A method for modifying the properties of a nylon block copolymer comprising: supplying a nylon block copolymer wherein the nylon block copolymer has a flexural modulus, a tensile modulus, and an unnotched Izod impact strength. Incorporated into the nylon block copol... | 10/09/2007 |
| 7273899 | Materials and method for making splayed layered materials The present invention relates to a splayed material comprising a layered material splayed with a particle having a diameter equal to or less than 3 micrometers. Another embodiment of the invention includes an article comprising a matrix and a layered material splaye... | 09/25/2007 |
| 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 |
| 7208540 | Process for curing aminoplast resins Aminoplast resins are cured using inorganic particles as curing agents. The inorganic particles have a laminated structure and include interlamellarly exchangeable cations such as alkali cations, alkaline-earth cations, aluminum cations, iron cations and/or manganes... | 04/24/2007 |
| 7196131 | Polymer-modified inorganic particles The invention relates to polymer modified inorganic particles with a layer structure with an average particle diameter of 5 nm to 20,000 nm, containing 20 to 5000 mass % interlamellarly, in relation to the anhydrous inorganic particle, of a mixture of aminoplasts an... | 03/27/2007 |
| 7195542 | Process, apparatus and slurry for wire sawing A wire saw (1; 100) for cutting a workpiece includes a device (21, 22, 24, 27) for setting, controlling and/or maintaining a predetermined or desired water content in at least part of the gaseous medium that contacts the slurry. With the wire saw accor... | 03/27/2007 |
| 7160942 | Polymer-phyllosilicate nanocomposites and their preparation Polymer-phyllosilicate nanocomposites that exhibit superior properties compared to the polymer alone, and methods-for producing these polymer-phyllosilicate nanocomposites, are provided. Polymeric surfactant compatabilizers are adsorbed onto the surface of hydrophil... | 01/09/2007 |
| 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 |
| 7109257 | Modified clays and methods for making and using same Processes for modifying the surface chemistry of a clay are disclosed. In one embodiment, there is provided a process for modifying the surface chemistry of a clay, wherein the process comprises: providing a clay dispersion comprising at least one unmodified clay wh... | 09/19/2006 |
| 7091263 | Nanocomposite based on a bridged clay, and a cable comprising said composite The invention provides nanocomposites comprising a clay and an organic compound, in which the clay is a clay bridged by a metal compound, preferably iron oxide and/or aluminum oxide. The organic compound is preferably a polymer. The clay-based nanocomposites of the ... | 08/15/2006 |
| 7071247 | Reinforced filter material The invention relates to a porous mold for use in a pressure casting process, which mold is manufactured of a polymeric material forming a matrix into which a clay and a block copolymer or a graft copolymer have been incorporated, wherein the block copolymer or graf... | 07/04/2006 |
| 7056969 | Ink jet recording material suitable for use in wide format printing applications An aqueous coating formulation for use in preparing ink jet recording materials is provided. The coating formulation, which employs porous pigments and/or metal oxide gels in combination with inorganic pigments (i.e., calcium carbonate and mixtures of calcium carbon... | 06/06/2006 |
| 6998452 | Controlled free radical agent for nanocomposite synthesis This invention relates to a process for producing a free radical control agent of the structural formula: wherein Z is selected from the group consisting of wherein R1... | 02/14/2006 |
| 6979405 | Flocculation of mineral suspensions A method of dewatering an aqueous mineral suspension comprising introducing into the suspension a flocculating system comprising, a) a substantially non-ionic polymeric flocculant and b) an anionic polymeric flocculant, characterised in that, the substantially non-i... | 12/27/2005 |
| 6861462 | Nanocomposite formed in situ within an elastomer and article having component comprised thereof This invention relates to preparation and use of nanocomposites formed in situ within an elastomer host wherein the nanocomposite is comprised of an elastomer matrix and a dispersion therein of at least partially exfoliated clay platelets. Rubber composites can be p... | 03/01/2005 |
| 6849680 | Preparation of polymer nanocomposites by dispersion destabilization Nanocomposites may be produced by mixing dispersions of polymers and dispersions of clay minerals. After mixing, the dispersions may be destabilized with the addition of appropriate compounds. The flocculated solid material exhibits characteristics of a nanocomposit... | 02/01/2005 |
| 6828367 | Organic modification of a layered silicate by co-ion exchange of an alkyl ammonium and a mono-protonated diamine Co-Ion exchange of the interlayer cations of a layered silicate with a mono-protonated aromatic diamine and an alkyl ammonium ion into the silicate galleries. The presence of the alkyl ammonium ion provides low oligomer melt viscosity during processing. The presence... | 12/07/2004 |
| 6822035 | Process for the preparation of organoclays A method for preparing organoclays for use as rheological control agents and in the preparation of nanocomposites. Typically, the clay is dispersed in water, and a specific amount of polymeric hydrotrope, ranging from 0.1 to 15 weight percent relative to the weight ... | 11/23/2004 |
| 6770696 | Preparation of clay-dispersed polymer nanocomposite Disclosed is a method for preparing a clay-dispersed polymer nanocomposite. In this method, a polymer, which carries oxygen atoms within the repeating units of its backbone and is thermodynamically compatible with a binder resin, is used as a matrix resin. Useful is... | 08/03/2004 |
| 6767952 | Article utilizing block copolymer intercalated clay An intercalated clay comprising a clay intercalated with a block copolymer wherein said block copolymer comprises a hydrophilic block capable of intercalating said clay. An additional embodiment is an article comprising a matrix polymer and clay wherein said clay is... | 07/27/2004 |
| 6765050 | Complexes of clay and polyoxyalkylene amine and method for producing the same The present invention discloses a complex of clay and polyoxyalkylene amine and a method for producing the same. The clay in the present invention is layered and includes silicate, and the polyoxyalkylene amine with molecular weight over 1,800 is provided as an inte... | 07/20/2004 |
| 6737464 | Polymer nanocomposite comprising a matrix polymer and a layered clay material having a low quartz content The invention is directed to a polymer-clay nanocomposite material comprising a melt-processible matrix polymer and a layered clay material having low quartz content. This invention is also directed to a process for preparing polymer-clay nanocomposites, and article... | 05/18/2004 |
| 6696377 | Clay slurry A process for preparing a ball clay slurry with a casting rate of at least about 50, a modulus of rupture of at least 500 pounds per square inch, and from about 0.1 to about 1.0 weight percent of organic polyelectrolyte. In this process, a digested lignit... | 02/24/2004 |
| 6586500 | Polymer nanocomposite comprising a matrix polymer and a layered clay material having an improved level of extractable material The invention is directed to a polymer-clay nanocomposite material comprising a melt-processible matrix polymer and a layered clay material having decreased levels of extractable material, such as extractable salts of organic cations. This invention is al... | 07/01/2003 |
| 6552114 | Process for preparing a high barrier amorphous polyamide-clay nanocomposite This invention relates to a process for preparing an amorphous polyamide-clay nanocomposite comprising the steps of: a. melt mixing a layered clay material with an oligomeric polyamide resin to form an oligomeric polyamide resin-clay composite, and b. mixing t... | 04/22/2003 |
| 6552113 | Polymer-clay nanocomposite comprising an amorphous oligomer This invention is directed to a polymer-clay nanocomposite, products produced from the nanocomposite, and a process for preparing a polymer-clay nanocomposite. The polymer-clay nanocomposite comprises (a) a matrix polymer, (b) an amorphous oligomer, and (... | 04/22/2003 |
| 6548587 | Polyamide composition comprising a layered clay material modified with an alkoxylated onium compound This invention relates to a composite composition comprising one or more polyamide polymers or copolymers, one or more layered clay materials, and one or more alkoxylated ammonium cations. The invention also relates to a process for preparing a nanocompos... | 04/15/2003 |
| 6548438 | Method for processing clay ceramic materials A method of forming bricks, tiles, and the like by treating clay, shale or other clay ceramic raw materials containing pyrite is disclosed. Such clay, ceramic raw materials may be ground, and then mixed with an oxidizer in a pre-oxidation step to disperse... | 04/15/2003 |
| 6537676 | Waterproofing material and method of fabrication therefor A waterproofing material free of loose particulate material comprising a waterproofing sheet formed by extrusion under vacuum from a substantially homogeneous, deformable mass consisting of a mixture of particulate smectite clay and liquid.... | 03/25/2003 |
| 6528446 | Process for making clay spheroids A process of making ceramic spheroids by firing clay spheroids comprising by weight percent: FeO (3.22-5.21), Fe3 O4 (3.40-5.11), SiO2 (52.49-59.42), CaO (1.99-7.96), MgO (2.81-4.69), Al2 O3 (12.05-17... | 03/04/2003 |
| 6521678 | Process for the preparation of organoclays A method for preparing organoclays from smectites for use as rheological control agents and in the preparation of nanocomposites. Typically, the clay is dispersed in water, and a substantially monomolecular layer of a water soluble polymer is applied to t... | 02/18/2003 |
| 6500892 | Intercalated clay useful for making an -olefin polymer material nanocomposite Disclosed is clay material, the particles of which are intercalated with a compound comprising a saturated isoprene oligomer bonded to a polar group. In a preferred embodiment the polar group is a quaternary ammonium radical. Further disclosed is a nanoco... | 12/31/2002 |
| 6461423 | Intercalates and exfoliates formed with hydroxyl-functional; polyhydroxyl-functional; and aromatic compounds; composite materials containing same and methods of modifying rheology therewith Intercalates formed by contacting a layered material, e.g., a phyllosilicate, with an intercalant monomer having a hydroxyl and/or an aromatic ring functionality to sorb or intercalate the intercalant monomer between adjacent platelets of the layered mate... | 10/08/2002 |
| 6451895 | One step process for making breathable, clay filled polymer compositions having controlled stability in contact with aqueous fluids This invention discloses novel water-responsive compositions with improved stability to aqueous liquids and an improved method of making the compositions. The addition of organically modified clay to poly(ethylene oxide) significant improves the liquid st... | 09/17/2002 |
| 6444601 | Purified attapulgite clay A method for producing an Attapulgite clay (Fuller's Earth) that significantly removes other types of clays and minerals, resulting in improved performance. A unique dispersant is used that will fully disperse the individual Attapulgite particles in water... | 09/03/2002 |
| 6417262 | High barrier amorphous polyamide-clay nanocomposite and a process for preparing same This invention is directed to a polyamide-clay nanocomposite, products produced from the nanocomposite, and a process for preparing a polyamide-clay nanocomposite. The polyamide-clay nanocomposite comprises (a) an amorphous matrix polyamide comprising (i)... | 07/09/2002 |
| 6414069 | Hybrid mixed ion clay structures for polymer nanocomposite formation Hybrid layered silicates with galleries between the layers containing both inorganic and organic ions with different compositions in different galleries are described. The resulting hybrid layered silicates provide economical starting materials for polyme... | 07/02/2002 |
| 6399690 | LAYERED COMPOSITIONS WITH MULTI-CHARGED ONIUM IONS AS EXCHANGE CATIONS, AND THEIR APPLICATION TO PREPARE MONOMER, OLIGOMER, AND POLYMER INTERCALATES AND NANOCOMPOSITES PREPARED WITH THE LAYERED COMPOSITIONS OF THE INTERCALATES Intercalated layered materials prepared by co-intercalation of a multi-charged onium ion spacing/coupling agent and a matrix polymer between the planar layers of a swellable layered material, such as a phyllosilicate, preferably a smectite clay. The spaci... | 06/04/2002 |
