Quotables
"Fooling around with alternating current is just a waste of time. Nobody will use it, ever."
Thomas Edison ; 1889
PatentStorm News
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 |
| 6248879 | Polyanhydride crosslinked fibrous cellulosic products and process for their preparation A process for preparation of crosslinked cellulosic products containing at least 30 wt. % cellulosic fibers and the polyanhydride crosslinked cellulosic products resulting therefrom wherein a cellulosic material is treated with an aqueous solution of a po... | 06/19/2001 |
| 6124517 | Olefin purification by adsorption of acetylenics and regeneration of adsorbent Processes using heterogeneous adsorbents are disclosed for purification of relatively impure unsaturated hydrocarbons such as olefins, which are typically produced by thermal cracking of suitable hydrocarbon feedstocks, by passing a feed stream, containin... | 09/26/2000 |
| 6103935 | Process for production of fumaric acid by isomerization of maleic acid The present invention relates to a process for the production of fumaric acid by the isomerization of maleic acid at high conversions which comprises heating maleic acid in the presence of phosphoric acid at a temperature sufficient to isomerize the malei... | 08/15/2000 |
| 6080905 | Olefin purification by adsorption of acetylenics and regeneration of adsorbent Processes using heterogeneous adsorbents are disclosed for purification of olefins such as are typically produced by thermal cracking of suitable hydrocarbon feedstocks, by passing a stream of olefin having from 2 to about 8 carbon atoms, containing acety... | 06/27/2000 |
| 6043401 | Reactive, low molecular weight, viscous poly(1-olefins) and copoly(1-olefins) and their method of manufacture Catalysts and processes are described to make low molecular weight, essentially terminally-unsaturated, viscous poly(1-olefin) or copoly(1-olefin) having a high terminal vinylidine content from a feed stock containing one or more 1-olefin and other volati... | 03/28/2000 |
| 5981739 | Polyanhydride crosslinked fibrous cellulosic products and process for their preparation A process for preparation of crosslinked cellulosic products containing at least 30 wt. % cellulosic fibers and the polyanhydride crosslinked cellulosic products resulting therefrom wherein a cellulosic material is treated with an aqueous solution of a po... | 11/09/1999 |
| 5971907 | Continuous centrifugal separator with tapered internal feed distributor Improved centrifugal decanters with a screw conveyor for the continuous separation of solids-liquid mixtures are disclosed wherein the conveyor is provided with a feed arrangement for reducing the magnitude of mechanical vibrations of the centrifuge compr... | 10/26/1999 |
| 5929255 | Process for coproducing fumaric acid and maleic anhydride The present invention provides a process for recovering fumaric acid formed as a by-product during the production of maleic anhydride so that both fumaric acid and maleic anhydride are obtained. The process of the present invention further eliminates the ... | 07/27/1999 |
| 5792722 | Catalysts for the production of maleic anhydride by the oxidation of butane A catalyst for the production of maleic anhydride by oxidation of butane and a process for the production of a catalyst using phosphoric acid and glycol ether solvents.... | 08/11/1998 |
| 5777045 | Polygylcidyl ester-based power coatings This invention relates to thermally-stable, polyglycidyl-terminated polyesters from diglycidyl phthalates and carboxylated polyesters. The resulting resins, when blended and cured with other carboxylated polyesters, are improved binders for powder coating... | 07/07/1998 |
| 5688887 | Reactive, low molecular weight, viscous poly(1-olefins) and copoly(1-olefins) and their method of manufacture Catalysts and processes are described to make low molecular weight, essentially terminally-unsaturated, viscous poly(1-olefin) or copoly(1-olefin) having a high terminal vinylidine content from a feed stock containing one or more 1-olefin and other volati... | 11/18/1997 |
| 5649045 | Polymide optical waveguide structures Polyimide optical waveguide structures comprising a core within a cladding wherein at least one of the core and the cladding is a polyimide containing 6FDA; and the complementary portion of the waveguide structure is a polyimide having partial replacement... | 07/15/1997 |
| 5599655 | Photoimageable polyimide coating A photoimageable polyimide coating which can be prepared from the polymeric condensation product of 6FDA, DMDE or MEDA, and a photosensitizing moiety. More particularly, the present invention relates to a photoimageable polyimide coating useful for microe... | 02/04/1997 |
| 5532110 | Photoimageable polyimide coating A photoimageable polyimide coating which can be prepared from the polymeric condensation product of 6FDA, DMDE or MEDA, and a photosensitizing moiety. More particularly, the present invention relates to a photoimageable polyimide coating useful for microe... | 07/02/1996 |
| 5506187 | Catalysts for the production of maleic anhydride by the oxidation of butane A catalyst for the production of maleic anhydride by oxidation of butane and a process for the production of a catalyst using phosphoric acid and glycol ether solvents.... | 04/09/1996 |
| 5504830 | Photocurable polyimide coated glass fiber An optical glass fiber coated with a protective layer of photocurable polyimide coating which can be prepared from the polymeric condensation product of 6FDA, DMDE, and a photosensitizing moiety. More particularly, the present invention relates to a photo... | 04/02/1996 |
| 5501941 | Photoimageable polyimide coating A photoimageable polyimide coating which can be prepared from the polymeric condensation product of 6FDA, DMDE or MEDA, and a photosensitizing moiety. More particularly, the present invention relates to a photoimageable polyimide coating useful for microe... | 03/26/1996 |
| 5427862 | Photocurable polyimide coated glass fiber An optical glass fiber coated with a protective layer of photocurable polyimide coating which can be prepared from the polymeric condensation product of 6FDA, DMDE, and a photosensitizing moiety. More particularly, the present invention relates to a photo... | 06/27/1995 |
| 5359006 | Poly(vinylalkylether)-containing hot melt adhesives for polyethllene and polypropylene Hot-melt adhesives based upon a mixture composed of poly(vinylmethylether), greater than about 10 weight percent of a thermoplastic resin and, optionally a tackifier resin and/or extender, are found to be superior for the binding of polyolefins such as po... | 10/25/1994 |
| 5346943 | Sealer composition for wood, concrete, porous materials A water-based wax-free stable emulsion composition, useful as water sealer for wood, concrete and porous materials is disclosed. The water-based sealer composition forms a non-drying film that is water-repellant, flexible, self-sealing and allows passage ... | 09/13/1994 |
