Famous Patents
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 |
| 8057727 | Vehicle interior article of skin-integrated laminate, method for manufacturing non-foaming polyurethane resin and method for manufacturing skin-integrated laminate using the same The present invention is directed to skin-integrated laminates and their use as vehicle interior articles, in which the laminates feel comfortable to the touch and have a high quality of external appearances. The invention also relates to a method for manufacturing ... | 11/15/2011 |
| 7988903 | Fast curing vulcanizable multi-part elastomer composition, and process for blending, injection molding and curing of elastomer composition A multi-part rubber compound comprising: (1) a first compound comprising an elastomer (1)(a) and a vulcanizing agent, and having a ts2 of at least 1.5 minutes; (2) a second compound comprising an elastom... | 08/02/2011 |
| 7785522 | Cross-linked thermoplastic polyurethane/polyurea and method of making same A process for forming a cross-linked thermoplastic polymer is disclosed herein. The cross-linked thermoplastic polymer is formed by heating a first mixture containing a thermoplastic urethane base material, a monomeric diisocyanate comprising between 1 to 10% of the... | 08/31/2010 |
| 7572404 | Vehicle interior article of skin-integrated laminate, method for manufacturing non-foaming polyurethane resin and method for manufacturing skin-integrated laminate using the same The present invention is directed to skin-integrated laminates and their use as vehicle interior articles, in which the laminates feel comfortable to the touch and have a high quality of external appearances. The invention also relates to a method for manufacturing ... | 08/11/2009 |
| 7540990 | Cross-linked thermoplastic polyurethane/polyurea and method of making same A process for forming a cross-linked thermoplastic polymer is disclosed herein. The cross-linked thermoplastic polymer is formed by heating a first mixture containing a thermoplastic urethane base material, a monomeric diisocyanate comprising between 1 to 10% of the... | 06/02/2009 |
| 7422716 | Method for manufacturing a golf product A process for reaction injection molding a polyurethane material for a layer of a golf ball is disclosed herein. The layer is preferably a cover for the golf ball. The process discloses preferred pressure parameters and mass flow parameters for reaction injection mo... | 09/09/2008 |
| 7404916 | Process for producing polyurethane moldings Cellular or compact polyurethane moldings are produced by conveying at least one isocyanate component and at least one polyol component by a metering machine in dispensing manner into a mixing chamber via component lines to form a polyurethane reaction mixture. Subs... | 07/29/2008 |
| 7192547 | Method for manufacturing a golf product A process for reaction injection molding a polyurethane material for a layer of a golf ball is disclosed herein. The layer is preferably a cover for the golf ball. The process discloses preferred pressure parameters and mass flow parameters for reaction injection mo... | 03/20/2007 |
| 7169861 | Method for manufacturing sporting equipment incorporating urethane/nitroso composition Sports equipment incorporate thermoplastic compositions including urethane and a nitroso reaction product of a nitroso compound and a diisocyanate or polyisocyanate. The invention on allows for the processing advantages of a thermoplastic urethane with the superior ... | 01/30/2007 |
| 7128864 | Process forming a cover layer for a golf ball Molding equipment and related techniques for forming a golf ball are disclosed. The golf ball comprises a core and a cover layer, wherein the cover layer provides one or more deep dimples that extend through the cover layer to and/or into a layer or component undern... | 10/31/2006 |
| 7115226 | Stack mold having a melt homogenizing element A stack injection molding apparatus includes a melt homogenizing element provided between a first transfer nozzle, which is coupled to a melt source, and a second transfer nozzle, which is coupled to a manifold. The melt homogenizing element is used for redistributi... | 10/03/2006 |
| 7070726 | Process for producing a golf ball with deep dimples A process for making a golf ball with one or more deep dimples is disclosed. The process utilizes a molding assembly for making a golf ball which includes a mold body that defines a molding cavity. The molding cavity is adapted to accommodate and preferably retain a... | 07/04/2006 |
| 7067081 | Method of making a golf ball product from fast-curling reaction injection molded polyurethane Golf ball products are made by reaction injection molding (RIM) fast curing thermoset polyurethane compounds. A polyurethane prepolymer and a curing agent are mixed and injected at low temperature and pressure into a closed mold where the reaction mixture gels. The ... | 06/27/2006 |
| 7025116 | Mold and method of molding metallic product A mold M for molding a metallic product including a fixed mold section 2 and a movable mold section 1, wherein heating means 7 is provided in the fixed mold section and cooling means 10 is provided in the movable mold section, which means... | 04/11/2006 |
| 6908875 | Organometallic compositions and polyisocyanate compositions containing them An organometallic composition, suitable for use in curing polyisocyanate compositions, includes a complex of at least one metal selected from iron, cobalt and aluminum and at least one β-dicarbonyl compound wherein when the metal is iron (II) or cobalt (II) the mol... | 06/21/2005 |
| 6893599 | Method for making a reinforced, polymeric article in a reaction injection molding system and mold for use therein A mold for use in a reaction injection molding method and system to make a reinforced polymeric article having reduced surface defects includes a novel gating system. The mold includes a pair of mold sections which define a closed, article-forming cavity, an injecti... | 05/17/2005 |
| 6821111 | Lattice gate for drop gate injection molding The present invention is directed towards the hybrid combination of a drop gate injection molding system and a lattice gate. The lattice gate is located prior to the orifice of the drop gate. The lattice gate is comprised of a series of cross-direction flow channels... | 11/23/2004 |
| 6803011 | Method for making an injection moldable feedstock which can provide articles with improved physical properties A method of making a feedstock for injection molding, including the steps of: mixing at a temperature of at least 100° C. polymeric materials having a thermal conductivity in the range of 0.001 to 0.01 cal/cm-sec-° C. wherein the polymeric materials are selected f... | 10/12/2004 |
| 6796786 | Runner for injection molding The present invention is directed to the structure of an inline runner for injection molding which uniformly increases the temperature of the injected compound as the compound flows from the injection port to single or multiple drop gates at the entrance to single o... | 09/28/2004 |
| 6780364 | Process of making a roller A conductive roller for use in a laser printer includes a solid, thermoset urethane comprising a metal salt and having a hardness of between 30 Shore A and 50 Shore A on cube and a volume resistivity of 1E6 ohm-cm and 9E8 ohm-cm. ... | 08/24/2004 |
| 6765080 | High performance RIM elastomers and a process for their production This invention relates to high performance RIM (reaction injection molded) poly(urethane)urea elastomers, and to a process for their production. These elastomers comprise the reaction product of an allophanate-modified diphenylmethane diisocyanate prepolymer having ... | 07/20/2004 |
| 6716954 | Golf ball formed from a polyisocyanate copolymer and method of making same Disclosed herein is a method of making a golf ball by mixing a polyisocyanate copolymer and at least one other reactant, such as a polyol, to form a reaction product and reaction injection molding the reaction product to form at least one of a core and cover compone... | 04/06/2004 |
| 6635200 | Process and device for producing plastic moldings from a flowable reaction mixture Polyurethane molded articles are produced from a flowable polyol-polyisocyanate reaction mixture on a shot-wise basis. The flowable reaction mixture is formed by combining the components of that mixture in the mixing chamber of a mixhead. The contents of ... | 10/21/2003 |
| 6623685 | Method of premixing fiber and plastic matrix A method of reducing the restrictions of mixing fiber reinforced plastic includes the step of first coating the fiber. The coating is of a sort which will prevent the fiber from beginning to absorb the plastic such that the combined plastic and fiber may ... | 09/23/2003 |
| 6572810 | Method of injection molding articles with improved physical properties A method of making an injection molded article, including the steps of: mixing at a temperature of at least 100° C. polymeric materials having a thermal conductivity in the range of 0.001 to 0.01 cal/cm-sec-° C. wherein the polymeric materials are selec... | 06/03/2003 |
| 6533566 | Apparatus for making a golf ball An apparatus for making a golf ball is disclosed. The apparatus is a molding assembly for making a golf ball which includes a mold body that defines a molding cavity. The molding cavity is adapted to accommodate and preferably retain a golf ball core duri... | 03/18/2003 |
| 6464908 | Method of molding composites containing carbon fibrils A composite that includes a reaction injection molded matrix into which carbon fibrils have been incorporated, and a molding composition suitable for preparing such a composite. The invention also features a composite that includes a premix in which carbo... | 10/15/2002 |
| 6464923 | Method for producing molded silicone rubber product A method for producing a molded silicone rubber product comprising (i) forming a mixture comprising (A) a primary composition in the form of a paste comprising an inorganic filler and a diorganopolysiloxane containing at least 2 silicon atom-bonded alkenyl gro... | 10/15/2002 |
| 6403752 | Secondary aliphatic diamines as curing agents for polyurethanes and polyureas prepared using high-pressure impingement mixing Certain secondary aliphatic diamines are excellent chain extenders in the formation of polyurethanes, polyurea-polyurethane hybrids, and polyurea polymers, both elastomers and coatings, from both monomeric polyisocyanates and isocyanate-terminated prepoly... | 06/11/2002 |
| 6261486 | Process and device for the production of polyurethane moldings by the shot process For the production of polyurethane moldings by the shot process from isocyanate and polyol components, the production is improved in that, in addition to the conditioning already known for the line system, at least one of the commercially available but mo... | 07/17/2001 |
| 6254813 | Method and apparatus for injection molding plastic objects comprised of at least two different materials An apparatus and method provides that before, during, and/or after the plastic objects have been injection molded, a portion of the first plastic component, the second material, and/or a mixture of the two components is conveyed to at least one storage el... | 07/03/2001 |
| 6241930 | Method of constructing a garment with a graphical design thereon A method of attaching an applique to a garment includes the providing of die press member and a backing plate press member. Die cavities are formed on one face of the injection molding die press member, each preferably of a uniform thickness of about 1.0-... | 06/05/2001 |
| 6197241 | Method of making an electrolytic capacitor cover Improved covers for electrolytic capacitors, offering both durability and low extractability of halides by high temperature electrolytes, can be produced from molding compositions including thermoset polymers having low halide extractability, preferably b... | 03/06/2001 |
| 6193914 | Molding thermosetting polymers onto substrates An apparatus and method for molding thermosetting polymers onto clothing. The apparatus includes at least one molding device, at least one polymer supply and a control system for controlling the operation of the molding devices and polymer supplies. The m... | 02/27/2001 |
| 6143214 | Mixing and dispensing system for rapidly polymerizing materials A mixing and dispensing system for reactively combining organic chemical components to produce a rapidly polymerizing material for use in molding and encapsulating small and usually delicate devices, such as electronic components. The system uses a novel ... | 11/07/2000 |
| 6036900 | Resin transfer imidization of polyimide matrix composites A process is provided for producing high temperature composite components from a thermosetting polyimide resin system, and more particularly to an in-mold technique for impregnating a reinforcement fiber preform with the polyimide resin system, and therea... | 03/14/2000 |
| 5939004 | Molding thermosetting polymers onto substrates An apparatus and method for molding thermosetting polymers onto clothing. The apparatus includes at least one molding device, at least one polymer supply and a control system for controlling the operation of the molding devices and polymer supplies. The m... | 08/17/1999 |
| 5928593 | Method and apparatus for molding thermosetting polymers onto substrates An apparatus and method for molding thermosetting polymers onto clothing. The apparatus includes at least one molding device, at least one polymer supply and a control system for controlling the operation of the molding devices and polymer supplies. The m... | 07/27/1999 |
| 5922832 | Impact modified melt-stable lactide polymer compositions and processes for manufacture thereof The invention is directed toward melt-processable lactide polymer compositions, processes for manufacturing these compositions, and articles made from these compositions. The compositions include a first phase, which contains a polylactide-based polymer, ... | 07/13/1999 |
| 5908913 | Process for the continuous production of polyurethane and polyurethane urea prepolymers The invention relates to the continuous production of polyurethane and polyurethane urea prepolymers by reaction of polyisocyanates with isocyanate-reactive compounds in a mixing nozzle.... | 06/01/1999 |
