Did You Know...
...that the inventor of the electric motor was a blacksmith named Thomas Davenport? Described as "a brilliantly unsuccessful inventor", Davenport invented the first rotary electric motor. In 1836 he headed out -- on foot -- from his Vermont home to file a patent application at the Patent Office in Washington, D.C. By the time he got there, he had squandered away his money and couldn't afford the $30 filing fee so he turned around and went home. When he later mailed in his application with money he'd raised, the Patent office was destroyed in a fire. He did finally get credit for his invention on Feb. 5, 1837.
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| Number | Title | Issue Date |
| 7348373 | Polyimide compositions having resistance to water sorption, and methods relating thereto Water absorption resistant polyimide pastes (or solutions), are particularly useful to make electronic screen printable pastes and the electronic components made from these pastes. A group of soluble polyimides and their solvents were discovered to be particularly r... | 03/25/2008 |
| 6949294 | Radiation curing silicone rubber composition and adhesive silicone elastomer film A radiation curing silicone rubber composition is provided. This composition includes as a base polymer either a liquid polysiloxane with a (meth)acryloyl group and a hydrosilyl group, or a combination of a liquid polysiloxane with at least two (meth)acryloyl groups... | 09/27/2005 |
| 6184279 | Coating compositions and coated substrates with good appearance properties Coating compositions and coated substrates with the cured coatings of at least one curable film-forming resinous material along with an effective degassing amount of a material having the structure: ##STR1## and dimer derivatives thereof wherein R and R' ... | 02/06/2001 |
| 5397826 | Coating compositions for a transparent magnetic recording layer A coating composition for applying a transparent magnetic recording layer to a support which comprises a polymeric binder, ferromagnetic particles and a dispersing medium for the polymeric binder, the dispersing medium comprising (a) a compound having the... | 03/14/1995 |
| 5238983 | Molding compounds based on a thermoplastically processible aromatic polyamide Molding compounds based on a thermoplastically processible aromatic polyamide. Molding compounds with an improved stability toward thermal oxidation were attained in that the molding compounds in comparison to polyamides contain chemically inert compounds... | 08/24/1993 |
| 5006584 | Polydialkylsilalkylene polymer useful in enhanced oil recovery using carbon dioxide flooding A polymer is disclosed that is useful in increasing the viscosity of carbon dioxide. That polymer comprises a polydialkylsilalkylene polymer; wherein the dialkyl group is preferably dimethyl, methylethyl, or diethyl; and the alkylene group is preferably e... | 04/09/1991 |
| 4897307 | Process for the solvent-induced crystallization of amorphous poly(etheretherketone)-type polymers and the article formed thereby The present invention relates to a process for the solvent-induced crystallization of amorphous poly(etheretherketone)-type polymer to produce an article, which process comprises: A. contacting a preformed article of a polymer comprising amorphous poly(et... | 01/30/1990 |
| 4882377 | Low-viscosity pressure-adherent silicone elastomer compositions A pressure-adherent silicone elastomer composition comprising a homogeneous mixture of a silicone pressure sensitive adhesive composition, a crosslinkable silicone elastomer composition, and, optionally, a viscosity reducing agent. Specifically, the silic... | 11/21/1989 |
| 4749506 | Fine particle substance-containing microgel dispersions A microgel dispersion characterized by that an oil-soluble surface active agent is adsorbed or adhered onto a gel consisting of a fine particle substance and a polymer, and said gel is dispersed in a non-aqueous organic solvent.... | 06/07/1988 |
| 4740548 | Polyimide thermoplastic protected from discoloration during thermal processing A thermoplastic composition is provided which comprises a polyimide with an effective amount of an alpha-hydroxyketone such as benzoin to prevent discoloration on thermal processing.... | 04/26/1988 |
| 4740547 | Aromatic polysulfone thermoplastics protected from discoloration during thermal processing A thermoplastic composition is provided which comprises an aromatic polysulfone with an effective amount of an alpha-hydroxyketone such as benzoin to prevent discoloration on thermal processing.... | 04/26/1988 |
| 4695601 | Polyphenylene ether thermoplastic protected from discoloration during processing A thermoplastic composition is provided which comprises a polyphenylene ether such as the copolymer of 2,6-dimethylphenol with 2,3,6-trimethylphenol, with an effective amount of an alpha-hydroxyketone such as benzoin to prevent discoloration on thermal pr... | 09/22/1987 |
| 4657962 | Finely divided coating agent containing polymers having hydroxyl groups and blocked polyisocyanates containing at least one acylurethane Finely divided coating agents based on (A) oligomers and/or polymers containing OH groups and (B) blocked polyisocyanates and, if required, further conventional additives, in which the component (B) contains at least one acylurethane possessing groups of ... | 04/14/1987 |
| 4454276 | Polyamide acid composition for preparing polyimide and process for preparing polyimide from the same A polyamide acid composition for preparing a polyimide which can extend the pot life of the composition comprising a solution of a polyamide acid in an organic solvent, the polyamide acid being a precursor of the polyimide, a dehydrating agent, a catalyst... | 06/12/1984 |
| 4313979 | Method for improving adhesion of silicone resin coating composition A method for maintaining or improving the adhesion of silicone resin coating compositions to acrylic-primed plastic substrates comprises adding to the aliphatic alcohol-water medium of the composition a small, effective amount of a miscible solvent which ... | 02/02/1982 |
| 4311763 | Silicone resin coating composition An improved silicone resin coating composition is provided, the composition comprising an aged dispersion of colloidal silica in an aliphatic alcohol-water solution of the partial condensate of a silanol with a small, adhesion-promoting amount of a ³... | 01/19/1982 |
| 4244851 | Plasticized polycarbonate composition employing aldehyde compounds A plasticized polycarbonate composition comprising in admixture a high molecular weight aromatic carbonate polymer and a minor amount of an organic plasticizer.... | 01/13/1981 |
| 4209332 | Method for manufacturing pencil leads A method for manufacturing pencil leads which comprises thoroughly mixing 100 parts by weight of graphite, 30 to 60 parts by weight of a water-soluble nigrosine, an emulsion containing 10 to 30 parts by weight of wax, and water together, extruding the res... | 06/24/1980 |
| 4184994 | Plasticized polycarbonate composition employing solid ketones A plasticized polycarbonate composition comprising in admixture a high molecular weight aromatic carbonate polymer and a minor amount of an organic plasticizer.... | 01/22/1980 |
| 4087398 | Antifoam compositions Liquid dispersions of the higher (C22-70) aliphatic ketones and higher (C22-70) aliphatic secondary alcohols are effective antifoaming agents when they are of fine particle size. The particle size should be at least sufficiently smal... | 05/02/1978 |
| 4085081 | "Smoke-suppressant polyhalocarbon polymer compositions containing as plasticizer an unsaturated derivative of an ester polyol" Smoke-suppressant polymer compositions are described comprising a polyhalocarbon resin and an organic ester of the formula (a) ROC(O)C(O)OR' wherein R and R' can be the same or different and are C1 to C8 alkyl, C6 to C12 | 04/18/1978 |
| 4064083 | Pattern material composition For use in making investment molds by the lost pattern process, a pattern material which is machinable and has the capability of being melted out of the molds without cracking them, the material consisting basically of an ethylene-vinyl resin and at least... | 12/20/1977 |
| 3953394 | Polyester alloys and molding compositions containing the same Thermoplastic, stable, blended compositions comprising a combination of (a) a poly(ethylene terephthalate) resin and (b) a poly(1,4-butylene terephthalate) resin. The alloyed combination of resins can be reinforced with fillers and also rendered flame ret... | 04/27/1976 |
