...that after Walter Hunt patented the safety pin in 1849, he sold the rights to it for $400?
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7407686 | Optical film, polarizing plate and display device utilising the film, and production method of optical film An optical film is disclosed having minimal curl, minimal coating unevenness and no cracks. The optical film is obtained by casting a dope comprising a cellulose ester and a non-chlorinated solvent on a metal support, the cellulose ester having a total acyl substitu... | 08/05/2008 |
| 7281360 | Thermal laminates and laminating method of food packaging films The specification discloses a method for forming a packaging film. According to the method, a packaging film base layer is provided having a first side and a second side and formed from polymeric materials. At least one additional layer of polymeric material is extr... | 10/16/2007 |
| 7223360 | Method of molding decorative elements for consumer packaging A method of molding a decorative product packaging, comprising the steps of: molding a product container or cap; applying a UV curable liquid to surfaces and/or cavities in the container or cap; then exposing the UV curable liquid to UV radiation to form a solid coa... | 05/29/2007 |
| 7131171 | Method for restoring bulkiness of nonwoven fabric A method for restoring bulkiness of nonwoven fabric which contains crimped thermoplastic fiber and is in a roll form is disclosed. The method comprises unwinding the nonwoven fabric from the stock roll, and blowing hot air to the unwound nonwoven fabric by a through... | 11/07/2006 |
| 7108814 | Molded touch fasteners and methods of manufacture Touch fastener, molded articles having touch fasteners and methods of making such touch fasteners and articles are provided. The touch fasteners include a sheet form base having an upper face and a lower face; a plurality of male fastener elements, each fastener ele... | 09/19/2006 |
| 6649216 | In-line ultraviolet curable coating process and products produced thereby The present invention relates to a method of coating polymer film that includes the steps of extruding a cast sheet; stretching the sheet in a machine direction; applying a UV-curable coating to the sheet in-line; stretching the sheet in a transverse dire... | 11/18/2003 |
| 6395348 | Method for manufacturing adhesive tapes Pressure sensitive adhesive tapes are manufactured by continuously extruding polypropylene to form a web which is cooled and set and slit at transversely spaced positions into a plurality of side by side continuous tapes. After slitting each tape is drawn... | 05/28/2002 |
| 6338870 | Packaging laminate with gas and aroma barrier properties A packaging laminate (10) including a substrate film (15) coated with a carbon containing silicon oxide layer (16, 17) on both surfaces is disclosed herein. A method for producing the laminate (10), and blanks and packages fabricated from the laminate are... | 01/15/2002 |
| 6329016 | Loop material for touch fastening Lightweight, non-woven loop products for hook-and-loop fastening are disclosed, as are methods for making them and end products employing them. The products are non-woven webs of entangled fibers of substantial tenacity, the fibers forming both a sheet-fo... | 12/11/2001 |
| 6168826 | Biaxially oriented polyethylene film with improved optics and sealability properties Methods of preparing biaxially oriented polyethylene films with improved optics and sealability properties are provided. The methods include stretching in the machine direction a multi-layer base sheet having a core layer with a first and a second side, a... | 01/02/2001 |
| 6149984 | Laser irradiation method In processing an object by irradiating it with laser light, a laser irradiation chamber is evacuated to a pressure value suitable for the intended laser light processing and the laser light processing is performed with the pressure in the chamber kept con... | 11/21/2000 |
| 6117532 | Interdraw pretreatment for polyester film An oriented polyester film coated on at least one surface with a coating that improves its adhesion to gelatin is disclosed. The dry coating contains one or more sulfopolyesters; one or more tetrablock copolymer resins; and one or more non-volatile polyam... | 09/12/2000 |
| 6096375 | Optical polarizer A reflective polarizer and a dichroic polarizer are combined to provide an improved optical polarizer. The dichroic and reflective polarizers are typically in close proximity to each other, and are preferably bonded together to eliminate the air gap betwe... | 08/01/2000 |
| 5952477 | Azo compound and polarizing film The present invention is concerned with a novel azo compound represented by formula (1), (2) or (3), a water-soluble dye comprising this azo compound, and a polarizing film containing this azo compound. The obtained polarizing film has high hydrothermores... | 09/14/1999 |
| 5942298 | Laminated film A laminated film comprising a base film and a layer which contains an inorganic layered compound and a resin and is formed by gravure coating a coating fluid comprising the inorganic layered compound and the resin under the conditions satisfying the follo... | 08/24/1999 |
| 5935637 | Method of feedback control for the placement of a polymer composition into a web The present invention relates to methods and apparatus for the controlled placement of a shear-thinnable polymer composition into a moving web. The controlled placement is preferably performed by applying the polymer composition onto a surface of a moving... | 08/10/1999 |
| 5756214 | Release film comprising polycarbonate-silicone-urethane resin A release film comprises a polymeric film substrate and a polymeric abherent layer. The abherent layer comprises a polyurethane resin which is the reaction product of: (i) an organic polyisocyanate, (ii) an isocyanate-reactive polydialkylsiloxane, and (iii) a ... | 05/26/1998 |
| 5565274 | Fire rated floor door and control system Horizontally hinged covers for use in ceiling/floors are provided which are highly fire resistant and which in the event of fire automatically close. The door preferably utilizes a multilayer construction comprising an intumescent lower (inner) layer, an ... | 10/15/1996 |
| 5468440 | Process of making oriented film or structure Applications of isotactic polypropylene resin compositions produced from metallocene catalyst wherein the resins yield articles with comparable shear modulus and heat distortion temperature values to those of conventional polypropylene, but in which the f... | 11/21/1995 |
| 5356692 | Grid structure with sinuous interstices A grid structure with sinuous interstices comprises intersecting grid sections having undulate surfaces. The intersecting grid sections of the grid structure are made of a composite material consisting of fibers (e.g., graphite fibers) embedded in a matri... | 10/18/1994 |
| 5284677 | Coated textile for apparel A method for manufacturing a coated textile which exhibits a worn look when stressed. The method includes depositing a water-base resinous coating on the textile wherein the amount of coating placed on the textile is controlled such that the threads are c... | 02/08/1994 |
| 5248522 | Method of manufacturing antistatic polyester film A method for manufacturing a polyester film is disclosed which comprises a polyester film before completion of orienting crystalization and, provided thereon, a sublayer comprising a copolymer containing 70 to 99.5 wt % of vinylidene chloride, and an anti... | 09/28/1993 |
| 5244693 | Process for the preparation of a network article A process is disclosed for the preparation of a network article of a leno cloth fixed with a resin. The leno cloth is impregnated with the resin and the resin is solidified while tension is applied in the direction of the weft of the cloth.... | 09/14/1993 |
| 5188867 | Low coefficient of friction material and plastic films coated therewith A coating for a thermoplastic film includes an acrylic copolymer, a finely divided wax in the amount of 30 to 150%, preferably 30 to 60%, by weight based on the total weight of the copolymer, a finely divided inorganic solid selected from the group consis... | 02/23/1993 |
| 5182168 | Biaxially oriented polypropylene film A thermoplastic film comprising a base layer of a thermoplastic resin which comprises polypropylene and a coating layer of an alkali metal salt of an alkyl sulfate is disclosed. The film is characterized by reduced COF and improved anti-blocking character... | 01/26/1993 |
| 5145718 | Processs for producing pressure-sensitive adhesive tape A tape comprising a biaxially-oriented backing made from a polymeric film bearing on one major surface thereof a layer of pressure-sensitive adhesive and on the other major surface thereof a layer of low-adhesive backsize composition. The backing and the ... | 09/08/1992 |
| 4994303 | Fiber impregnation process A method of producing a low cost impregnated and coated fiber useful in forming pump, valve, expansion joint, hydraulic cylinder and similar packings capable of resisting high caustic concentrations is provided. In accordance with this method a relatively... | 02/19/1991 |
| 4956199 | Method of making roofing plies, including method of applying the same to a roof There is disclosed a method of making a roofing ply by providing a fiberglass mat, feeding the mat through a punching die and punching openings through the surface thereof. The mat is thereafter saturated with melted asphalt at a melting temperature of at... | 09/11/1990 |
| 4929471 | Method of treating polyester fabric A method of treating polyester fabric to enhance the physical properties thereof. The fabric is first exposed to a solution comprising a wetting agent, a nonionic fluorocarbon long chain polymer, a nonionic, cationic or anionic nonsilicone based softener,... | 05/29/1990 |
| 4851166 | Process of producing an oriented silicone resin coated polymeric film The invention concerns the production of oriented polymeric films in which a layer of a heat curable silicone resin composition is formed on a layer of a polymeric film which is thereafter stretched at an elevated temperature to effect orientation of the ... | 07/25/1989 |
| 4755337 | Process for surface treating a polyester film A polyester film having on at least one surface thereof a primer layer comprising a crosslinked product of a polyurethane having at least one functional group selected from a carboxyl group, a sulfo group, a hemisulfate group, and salts of these groups an... | 07/05/1988 |
| 4741924 | Method of making a polymeric coated fabric layer A polymeric coated fabric layer and method of making the same are provided, the polymeric coated fabric layer comprising a fabric layer having warps and fills initially woven at a certain angle relative to each other and then changed to another angle wher... | 05/03/1988 |
| 4741922 | Method of manufacturing a magnetic storage media Transverse bowing of a plastics web coated with a magnetic thin metal film is substantially eliminated by laterally stretching the coated web such that the lateral stress applied to the metal film exceeds the tensile strength of the film and the lateral s... | 05/03/1988 |
| 4690865 | Heat-shrinkable polymeric barrier film A heat-shrinkable barrier film comprised of an oriented polyolefin film coated on one side with a vinylidene chloride copolymer are disclosed. The films have excellent gas and vapor barrier properties, can surprisingly be made using conventional dispersio... | 09/01/1987 |
| 4598662 | Drum coagulator for preparing microporous membranes A process and device for producing a flexible layered article suitable for use in water proof garments wherein one of said layers is a microporous membrane material produced from the "solvent non-solvent" method wherein a fabric backing coated with the me... | 07/08/1986 |
| 4582660 | Method and apparatus for making a polymeric coated fabric layer A method and apparatus for making a polymeric coated fabric layer is provided, the method comprising the steps of providing a fabric layer having warps and fills initially woven at a certain angle relative to each other, then changing the certain angle to... | 04/15/1986 |
| 4528214 | Polymeric product having a fabric layer means and method of making the same A polymeric product having a fabric layer and method of making the same are provided, the fabric layer being provided with opposed sides and at least one polymeric part secured to the fabric layer. The fabric layer comprises a first substantially planar l... | 07/09/1985 |
| 4513028 | Adhesive tape and process for its production An adhesive tape comprises a base sheet of a polypropylene resin, an adhesive layer formed on one side of the base sheet and a roughened surface layer formed on the other side of the base sheet and composed of a polypropylene resin containing fine inorgan... | 04/23/1985 |
| 4492719 | Process for the production of slippery biaxially stretched polyester films A process for producing a slippery biaxially stretched polyester film, which comprises coating one or both surfaces, preferably one surface, of a running polyester film, before the completion of its crystalline orientation, with an aqueous solution or dis... | 01/08/1985 |
| 4394442 | Post-stretch water-dispersible subbing composition for polyester film base To improve adhesion of a hydrophilic photographic emulsion to a hydrophobic polyester film base the latter is energy-treated as by electrical discharge or flame treatment, and then given a sub-coating composed of an aqueous dispersion of a copolyester mod... | 07/19/1983 |