William F. Semple, a dentist, was awarded the first US Patent on chewing gum in 1869. His recipe contained powdered chalk.
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| Number | Title | Issue Date |
| 7338574 | Multilayer composite and method of making same A multilayer composite has a generally adhesion resistant, protective layer and an adjacent second polymeric film. The composition of the protective layer includes a fluoropolymer and the second polymeric film is a polymer free of fluoropolymer. The size of the prot... | 03/04/2008 |
| 7322814 | Film or sheet forming apparatus To form a film or sheet relatively thin and needing a high degree of precision in thickness, such as for an optical use, while suppressing temperature fluctuations at one side opposite to the other side in contact with an outer peripheral surface of a roll (11 | 01/29/2008 |
| 7284726 | Self extinguishing composite primary structure A helicopter with one or more components formed from a self extinguishing composite primary structure material to provide increased passenger safety. The self extinguishing composite primary structure material has a core formed from a fire retardant material, which ... | 10/23/2007 |
| 7247238 | Poly(ethylene chlorotrifluoroethylene) membranes Porous polymeric membranes including Halar (poly (ethylene chlorotrifluoroethylene)) and related compounds and the methods of production thereof which avoid the use of toxic solvents. Preferred solvents, coating agents and pore forming agents are citric acid ethyl e... | 07/24/2007 |
| 7241411 | Thin film strips A method of forming a thin film strip and thin film strips formed thereby where the method comprises coating a liner substrate with a wet slurry of film forming ingredients and other components and drying the wet slurry in a drying apparatus to form a film, measurin... | 07/10/2007 |
| 7192620 | Mold-release coating systems A mold-release coating system includes a barrier coating of a substantially liquid wax material. The wax material is deposited onto the mold surface. The wax material includes about 7 to about 10 weight percent solids. The wax material is permitted to substantially ... | 03/20/2007 |
| 7125504 | Optical switch microfilms A method of making a light diffusing microfilm, includes providing a carrier substrate; coating a coating fluid onto the carrier substrate; drying the coating fluid on the carrier substrate to form a releasable light diffusing microfilm on the carrier substrate; and... | 10/24/2006 |
| 7087132 | Method of decorative embossing of a panel for a vehicle A decoratively embossed panel of a molded form includes an exterior design that preferably reflects some aspect of the services advertisement. For example, a bricklayer may choose an embossed panel having a three-dimensional brick design in addition to a logo, servi... | 08/08/2006 |
| 7083752 | Cellulose acetate films prepared by coating methods A method of film fabrication is taught that uses a coating and drying apparatus to fabricate resin films suitable for optical applications. In particular, cellulose acetate films are prepared by simultaneous application of multiple liquid layers to a moving carrier ... | 08/01/2006 |
| 7033422 | Release agents, related anti-freezing/deicing compositions, and related methods Three novel types of release agents comprising waste products of several useful product-making processes well known in the art are disclosed. The first type of release agent is comprised of desugared sugar beet molasses, which is a waste product in the process of re... | 04/25/2006 |
| 6998439 | Resin composition, sheet obtained therefrom, process for producing sheet, and formed object The present invention provides a resin composition comprising a vinyl polymer (A) having, at a side chain thereof, at least one structure selected from polyether, polyester, polycarbonate or polybutadiene which has a functional group that can react with an isocyanat... | 02/14/2006 |
| 6926851 | Method, composition and apparatus for controlled concrete A method is provided for use of a concrete composition and an associated apparatus. The method provides for mixing of the concrete material, accelerant powder and, optionally, an associated substance to enable the controlled hardening of the concrete material in a m... | 08/09/2005 |
| 6841115 | Mold release agent and process for the production of plastic molded parts Mold release agents useful for the production of plastic molded parts having reduced concentration of undesirable, potentially health hazardous substances in the edge zone and on the surface of the molded part and a process for the production of low toxicity plastic... | 01/11/2005 |
| 6827897 | Reduction of friction effect between poly (ethylene terephthalate) preforms and bottles An additive system for polyester polymers comprising an effective amount of (i) a fatty acid amide selected from the group consisting of oleyl palmitamide, ethylene bis stearamide, ethylene bis oleomide, and stearyl erucamide; (ii) a partially or fully calcined poro... | 12/07/2004 |
| 6824829 | Process for manufacturing thin film strips A method of forming a thin film strip. The method comprises coating a liner substrate with a wet slurry of film forming ingredients and drying the wet slurry in a drying oven to form a film. A moisture content of the film is measured as the film exits the drying ove... | 11/30/2004 |
| 6620230 | Mold release composition A mold release composition and a method of forming molded articles using the mold release composition. The mold release composition of the present invention comprises at least one low vapor pressure hydrocarbon fluid and may further include an acid bearin... | 09/16/2003 |
| 6607690 | Methods for manufacturing ceramic green sheet and multilayer ceramic electronic parts A ceramic green sheet is manufactured by preparing a support which includes a releasing layer formed on its top surface and has a smoothness that at least a region of the top surface of the support to be coated with a ceramic slurry has substantially no p... | 08/19/2003 |
| 6592802 | Process for production of polymer sheet and optical polymer sheet The present invention provides a process for continuously producing a polymer sheet having an excellent surface smoothness, an apparatus for producing such a polymer sheet, and an optical polymer sheet produced by such a process. The process for producing... | 07/15/2003 |
| 6432339 | Continuous molding of fastener products with a mold belt Several methods and machines for continuously forming a fastener product having an array of fastener elements extending from a continuous, sheet-form base, employing a mold belt on which the sheet-form base of the product is formed and from which it is su... | 08/13/2002 |
| 6375883 | Method for making a cured article using an adiabatic mold The present invention relates to a mold for a chemically curable composition including a first shell component, a second shell component and a honeycomb core interposed therebetween. The invention further relates to providing an essentially adiabatic envi... | 04/23/2002 |
| 6375451 | Tape casting machine with profiled doctor blade A tape casting machine has a casting base with a feed location lying generally in a horizontal plane, and a casting head positioned to dispense a slurry onto the casting base. The casting base and the casting head are movable relative to each other. The c... | 04/23/2002 |
| 6376588 | Water soluble mold release composition for elastomeric compounds Disclosed is a composition useful as a mold release agent, exhibiting viscosities, lubricities and melting points which cover a wide range and fit a variety of types of molding equipment, comprising: a) 5 to 40% by weight one or more water soluble copolymers o... | 04/23/2002 |
| 6074588 | Mold releasing agent, cured film obtained therefrom and molding method using said mold releasing agent A mold releasing agent comprising a silicon-containing compound represented by the formula: R1n SiR24-n wherein R1 is ##STR1## (R3 and R4 are a hydrocarbon group having 1 to 4 ca... | 06/13/2000 |
| 5804264 | Membrane permeable to frangrances and other products A multilayer permeable membrane with a release layer for the packaging of aromatic condensation products. The permeable membrane has a first layer comprising low density polyethylene, a second layer comprising ultra low density polyethylene and a third la... | 09/08/1998 |
| 5798181 | Fluoropolymer coated elastomeric rollers and structures The present invention is an improved release coating for use on a variety of elastomeric structures, such as printer rollers and belts. The coating of the present invention is a thin expanded polytetrafluoroethylene skin that has a porous surface attached... | 08/25/1998 |
| 5744241 | Fluoropolymer coated elastomeric rollers and structures The present invention is an improved release coating for use on a variety of surfaces, such as printer rollers and belts. The coating of the present invention is an thin expanded polytetrafluoroethylene skin that has a porous surface attached to a substra... | 04/28/1998 |
| 5709739 | Release agents for hydraulic binders A composition useful as a release agent for hydraulic binders is provided. The composition comprises water, an oil component comprising a water-immiscible monohydric alcohol component liquid at temperatures of 5° to 15° C. and selected from the group co... | 01/20/1998 |
| 5645663 | Method of manufacturing a luminous sheet radiating flourescence upon irradiation of ultraviolet rays A method of manufacturing a luminous sheet according to the present invention enables a planar display unit radiating fluorescence upon irradiation of ultraviolet rays to be easily offered. A ability of radiating fluorescence is also increased. To this en... | 07/08/1997 |
| 5628949 | Mold process for producing a finished solid surface countertop A mold process for producing a finished solid surfaced countertop in which a mold of the product to be produced is placed in a substantially horizontal manner. A series of barriers are constructed atop a flat polished surface of the mold and creates a neg... | 05/13/1997 |
| 5589122 | Method of making double-sided pressure-sensitive adhesive tape A method utilizing melt processing for making a unified, composite tape structure that includes two outer pressure-sensitive adhesive layers and a backing wherein at least one of the two outer adhesive layers is not mutually coextensive.... | 12/31/1996 |
| 5411804 | Water-dispersible, heat-resistant composition and use thereof The present invention relates to a heat resistant composition which exhibits excellent heat and wear resistances after being cured. Further, it has excellent releaseability and durability, and the cured film thereof has a more excellent stability than a p... | 05/02/1995 |
| 5374303 | Release composition A biodegradable oil and water emulsion release composition for facilitating the unmoulding of hydraulic bonding material comprises as the oil component an ester of a hindered polyhydric alcohol having no hydrogen atoms attached to any carbon atom in a bet... | 12/20/1994 |
| 5366681 | Method of manufacturing release sheet The present invention provides a release agent formed by reacting an organopolysiloxane compound having at least one hydrogen atom with a hydrocarbon compound having at least one double bond which reacts with said hydrogen atom and a manufacturing method ... | 11/22/1994 |
| 5350554 | Method for production of reinforced cementitious panels A method and apparatus for producing light-weight construction panels having a cementitious core layer surfaced with a layer of reinforcing fabric bonded to the two faces of the core includes the use of slurry applicator having a supporting member and a d... | 09/27/1994 |
| 5308425 | Method of making crosslinked acrylic sheet with enhanced vacuum molding attributes A protective film is placed on acrylic sheet. The film has a polyethylene side and an adherent EVA side; it will survive stressful lamination procedures as well as thermoforming, and can be easily removed from a finished article after thermoforming.... | 05/03/1994 |
| 5213743 | Method of manufacturing release paper The present invention provides a release agent formed by reacting an organopolysiloxane compound having at least one hydrogen atom with a hydrocarbon compound having at least one double bond which reacts with said hydrogen atom and a manufacturing method ... | 05/25/1993 |
| 5204126 | Mold surfaces with ultra thin release films A film forming composition including a film forming substance having amphiphilic molecules and being dispersed in a gel-like carrier having a non-liquid state below about 20° C. The carrier stabilizes the film forming substance, and inhibits diffusion of... | 04/20/1993 |
| 5160564 | Process for producing a thermal stencil master sheet for stencil printing A process for producing a thermal stencil master sheet for stencil printing, which sheet, even when a thermoplastic film affording superior perforation properties but having low mechanical strengths is used therefor, can prevent the film from being broken... | 11/03/1992 |
| 5143817 | Solid imaging system An apparatus and method for fabricating integral three-dimensional objects from successive layers of photoformable compositions by exposing the layers of the composition through a detachable flexible transparent film, one side of the film being in contact... | 09/01/1992 |
| 5141783 | Application of composite, anti-adhesive films used as support bases for the formation of at least one polyurethane layer usable in safety windows The invention relates to an anti-adhesive polyester film comprising polyester film support base having a semicrystalline orientation, which comprises, on at least its surface designed to receive the liquid mass, a coating comprising a fluorine-containing ... | 08/25/1992 |