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| Number | Title | Issue Date |
| 4231377 | Wrapper for smoking articles containing magnesium oxide A wrapper for smoking articles such as cigarettes, cigars and the like containing at least 15% by weight magnesium oxide or its hydrate and at least 0.5% by weight of a specific chemical adjuvant such as the alkali metal acetates, carbonates, citrates, ni... | 11/04/1980 |
| 4225636 | High porosity carbon coated cigarette papers A method for producing high porosity, high carbon content cigarette papers in which a paper substrate having an initial Filtrona porosity of at least 10,000 air permeability units is coated with an aqueous suspension containing from 10 to 50% by weight fi... | 09/30/1980 |
| 4174719 | Microperforated filter tip cigarette An improved ventilated filter tip cigarette is provided utilizing a unique combination of porous filter plug wrap having a porosity of from about 300 to 4000 Filtrona air permeability units with a microperforated tipping envelope having perforations avera... | 11/20/1979 |
| 4145533 | Method for recycling regenerated cellulose scrap A method for recycling regenerated cellulose scrap such as uncoated cellophane and rayon produced in the viscose process. The regenerated cellulose scrap is first shredded into relatively small flakes and then emulsion-xanthated at a temperature ranging f... | 03/20/1979 |
| 4119105 | Air flow limiting filter An improved smoke control device for smoking articles which contains a valve operative to close off the flow of smoke drawn through the smoking article depending upon the pressure drop or draw rate of each individual puff. Preferably, the valve comprises ... | 10/10/1978 |
| 4112154 | Method for obtaining uniform porosity in printed inherently porous cigarette tipping papers A method for obtaining uniform porosity in printed inherently porous cigarette tipping papers from base papers of differing relative porosities, comprising measuring the porosity of the base paper and adjusting the viscosity of the ink used to print the b... | 09/05/1978 |
| 4108151 | Gamma alumina filled paper wrapper for smoking articles Cigarette paper containing a filler of gamma alumina, for selectively reducing the organic vapor phase constituents in tobacco smoke. The paper is comprised of cellulosic fibers and a gamma alumina filler with the amount of alumina filler present being at... | 08/22/1978 |
| 4100396 | Method for electrically perforating moving webs Apparatus and method for electrically perforating a moving web such as paper, film and the like by passing the web between at least one electrically charged electrode and a ground electrode in a perforating unit, the charged electrode comprising a member ... | 07/11/1978 |
| 4091170 | Coating composition for organic polymeric films A heat-sealable coating composition for organic polymeric films such as regenerated cellulose film that provides good runnability properties of the coated films on automatic packaging machines, comprising a conventional heat-sealable vinylidene chloride c... | 05/23/1978 |
| 4088728 | Method for imparting gauge variations to improve roll formation in regenerated cellulose film Improved roll formation in regenerated cellulose film is obtained by a method for introducing randomized gauge variations in the film on the casting machine by varying the water content in the gel film in scattered areas across the film prior to drying. T... | 05/09/1978 |
| 4082098 | Flavored cigarette A ventilated cigarette uniquely designed to introduce volatile flavoring agents such as menthol into the mainstream smoke of the cigarette with improved delivery rate and longer shelf life for the flavoring agent. The cigarette has a porous or perforated ... | 04/04/1978 |
| 4076934 | Method for controlling oxygen level during continuous xanthation of alkali cellulose The amount of oxygen present during the continuous xanthation of alkali cellulose with carbon disulfide is narrowly controlled by continuously purging the alkali cellulose with nitrogen prior to entry of the alkali cellulose into the xanthator. Preferably... | 02/28/1978 |
| 4060684 | Process for recovering raw materials from waste cellophane An efficient process for recovering raw materials from scrap coated and uncoated cellophane, including usable cellulose, coating resin, and softener, comprising (a) shredding the scrap cellophane, (b) extracting softener and coating resin jointly by washi... | 11/29/1977 |
| 4035611 | Apparatus for electrically perforating moving paper webs Method and apparatus for electrically perforating a moving web such as paper, film and the like in which the web passes between spaced, charged and ground electrodes adapted to move at right angles to one another, including a flat plate for supporting sai... | 07/12/1977 |
| 4029938 | Apparatus for electrically perforating moving webs Apparatus and method for electrically perforating a moving web such as paper, film and the like by passing the web between at least one electrically charged electrode and a ground electrode in a perforating unit, the charged electrode comprising a member ... | 06/14/1977 |
| 4021594 | Polymer coated regenerated cellulose film containing cellulose fibers in the coating The roll formation of polymer coated regenerated cellulose films is substantially improved by incorporating in polymer coatings for such films from 0.25 to 4% by weight, based upon the weight of the polymer coating, of finely divided cellulose fibers havi... | 05/03/1977 |
| 4009319 | Regenerated cellulose film, aluminum foil laminates and method for producing same Laminates of uncoated regenerated cellulose film and aluminum foil comprising the combination in which the cellulose film is softened or plasticized with a lower alkylene polyalkylene glycol and bonded with the aluminum foil using a polyethylene phthalate... | 02/22/1977 |
| 3993082 | Tobacco substitute A paper tobacco substitute which produces a neutral taste when blended with tobacco, comprising cellulose fibers and a filler, said filler comprising at least 55% by weight finely pulverized carbon particles based on the weight of the cellulose. In additi... | 11/23/1976 |
| 3983761 | Garniture belt An endless woven garniture tape or belt for cigarette making machines comprising a combination of natural, chemically modified, and synthetic fibers in a unique blend and arrangement which possesses properties that result in superior wear life performance... | 10/05/1976 |
