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| Number | Title | Issue Date |
| 6833399 | Flowable flax bast fiber and flax shive blend useful as reinforcing agent This invention relates to free flowing fiber reinforcing material which includes a blend of flax bast fibers and flax shives with a specific distribution of particle sizes and aspect ratios, thermoplastic pellets which include such reinforcing fiber blend, thermopla... | 12/21/2004 |
| 5792856 | Process for preparing carboxyalkyl cellulose esters This invention provides certain carboxymethyl cellulose (CMC) esters of higher acids (e.g., CMC acetate propionate, CMC propionate, CMC acetate butyrate, and CMC butyrate). These new ether derivatives of cellulose esters exhibit solubility in a wide range... | 08/11/1998 |
| 5521292 | Compositions comprising neutralized polysaccharide derivatives The present invention provides: (1) a polysaccharide derivative having hydrophilic functional groups and nitrate groups per one repeating unit in the following range: 0.2ࣘXࣘ1.5, 0.4ࣘYࣘ2.2, X+Y | 05/28/1996 |
| 5378826 | Process for the preparation of a storage stable low esterified nitrocellulose moistened with alcohol or water The present invention relates to a process for the preparation of nitrocellulose having particular properties by compression by means of contrarotating rollers.... | 01/03/1995 |
| 5242490 | Surface reactive veneer finishing composition and method Veneer surface reactive polyisocyanates can be used in combination with polyhydroxy functional polymers, preferably nitrocellulose, and isocyanate reaction catalyzing organo tin compounds in low solids film-forming formulations as a substitute for standar... | 09/07/1993 |
| 5144020 | High productivity spheroid nitrocellulose Fibrous water-wet nitrocellulose containing 4.5 to 5.5% moisture sprayed with a solvent/cosolvent mixture converts to spheroid, densified nitrocellulose via bilateral agitation. A free-flowing dust-free product having a lower burn rate is produced which d... | 09/01/1992 |
| 5055568 | Process for preparation of cellulose nitrate films Disclosed is a process for the preparation of cellulose ester films, which comprises dissolving a cellulose ester in an organic solvent, coating the solution on a substrate under rotation and peeling the film formed on the substrate from the substrate, wh... | 10/08/1991 |
| 4877869 | Acid catalyzed nitration Compositions containing sulfuric acid and one or more of certain chalcogen-containing compounds in which the chalcogen compound/H2 SO4 molar ratio is below 2 contain the mono-adduct of sulfuric acid whci is catalytically active for p... | 10/31/1989 |
| 4849514 | Process for making azidodeoxycellulose This invention is an improved process of making azidodeoxycellulose a hig energetic ingredient for use in a propellant. The process is accomplished by nitrating cellulose to nitrocellulose, converting the nitrocellulose in sequence to the iodine derivati... | 07/18/1989 |
| 4590019 | Processes for the production of free-flowing nitrocellulose Processes for the production of free-flowing, non-fibrous, alcohol-moistened nitrocellulose, characterized in that the water- or alcohol-moist nitrocellulose is softened with a solvent mixture of a nitrocellulose solvent and a lower aliphatic alcohol and ... | 05/20/1986 |
| 4568399 | Propellant compositions An azidonitrate energetic composition i.e. cellulose azidonitrate and a pess of making the same from nitrocellulose and sodium or lithium azide.... | 02/04/1986 |
| 4546175 | Process for the manufacture of reels of nitrocellulose thread According to the invention the reels 10 of cellulose thread wound in a loose manner around a hollow perforated core are arranged on the nozzles 9 carried by the hollow arms 8 of a rotor 7a placed on a hollow frame 7 situated at the bottom of a tank 6. A p... | 10/08/1985 |
| 4460411 | Nitrocellulose composition and process for producing the same A nitrocellulose composition in the form of chips containing 50 to 80 wt % of nitrocellulose and less than 1 wt % of water is produced by adding to water-wetted nitrocellulose an organic solvent which dissolves nitrocellulose and polyurethane resin and is... | 07/17/1984 |
| 4388458 | Use of ultrasonic energy to improve nitrocellulose purification The instant invention relates to a process for removing trace sulfuric acid rom nitrocellulose fibers by dispersing the fibers in water and then subjecting them to ultrasonic energy for a time period and at an energy level sufficient to enhance the nitroce... | 06/14/1983 |
| 4365059 | Nitration of cellulose There is disclosed a process for the nitration of cellulose with nitric acid in the absence of sulfuric acid which comprises adding sufficient nitric oxide and oxygen or air to the nitration reaction mixture to react with the water formed in the reaction.... | 12/21/1982 |
| 4343646 | Method for producing fertilizer from waste paper Waste paper is shredded and reacted with nitric acid to produce nitrated cellulose in which the inorganic nitrate ion is organically bound to the cellulosic waste paper. The resultant product is neutralized to enhance its stability and is suitable for use... | 08/10/1982 |
| 4334060 | Reactor for the gas phase nitration of cellulose A continuous process is provided for the vapor phase nitration of cellulose n a novel reactor having a gas tight housing containing a table with a perforated surface. Cellulose in porous sheet form is continuously passed into the reactor over the perforate... | 06/08/1982 |
| 4206302 | Continuous process for the nitration of cellulose and apparatus therefor In a continuous process for the nitration of cellulose, a slurry of cellulose in nitrating liquor is injected under pressure into a primary nitration reactor by means of an injection pump, the reactor comprising a loop of tubing, the slurry is circulated ... | 06/03/1980 |
| 4086418 | Process for producing a regenerated hollow cellulosic fiber Hollow cellulosic fibers are produced by nitrosating and dissolving a cellulosic material in an aprotic solvent selected from the group consisting of a dialkylacylamide and dimethylsulfoxide and regenerating the dissolved cellulose by contacting the cellu... | 04/25/1978 |
| 4076933 | Process for producing a regenerated shaped cellulosic fiber Shaped cellulosic fibers are produced by nitrosating and dissolving a cellulosic material in an aprotic solvent selected from the group consisting of a dialkylacylamide and dimethylsulfoxide and regenerating the dissolved cellulose by contacting the cellu... | 02/28/1978 |
| 4076932 | Process for producing regenerated cellulosic articles Regenerated cellulosic articles are produced by nitrosating and dissolving cellulose in a dialkylacylamide solvent, such as dimethylformamide, and regenerating the dissolved cellulose by passing into a coagulant bath. The coagulant comprises water or a 1 ... | 02/28/1978 |
| 4056675 | Process for producing regenerated cellulosic fibers Regenerated cellulosic fibers of improved resistance to alkaline treatment are produced by nitrosating and dissolving from 5 to 14% by weight of a cellulosic material in a dialkylacylamide solvent while said solution is maintained at a temperature no grea... | 11/01/1977 |
