Patents Represented by Attorney Robert W. Habel
  • Patent number: 4231377
    Abstract: 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, nitrates or tartrates. The combination of magnesium oxide or its hydrate with any of the chemical adjuvants significantly reduces visible sidestream smoke that emanates during static burning from smoking articles employing the wrapper. The wrapper may comprise conventional cigarette paper with magnesium oxide and the adjuvant incorporated therein as the filler in the paper furnish or either or both of the additives may be applied to the paper as a coating. Wrappers containing the additives can be used in place of conventional wrappers for smoking articles or used as an inner wrapper for the tobacco column in combination with a conventional outer wrapping of cigarette paper or cigar wrap.
    Type: Grant
    Filed: August 30, 1978
    Date of Patent: November 4, 1980
    Assignee: Olin Corporation
    Inventors: Warren K. Cline, Richard H. Martin
  • Patent number: 4225636
    Abstract: 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 finely divided carbon, up to 3% by weight of a water-soluble binder, and from 0.5 to 3% by weight of an alkali metal carbonate and thereafter dried resulting in a coated paper having a Filtrona porosity of not less than 5,000 air permeability units.
    Type: Grant
    Filed: March 8, 1979
    Date of Patent: September 30, 1980
    Assignee: Olin Corporation
    Inventors: Warren K. Cline, Stuart W. McCarty, William F. Owens, Jr.
  • Patent number: 4174719
    Abstract: 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 averaging less than about 0.01 mm.sup.2 each in open area. The relationship of plug wrap porosity combined with the size of microperforations in the tipping envelope provide cigarettes with maximum selective reductions in carbon monoxide yields and only minor reductions in nicotine yields as compared to constituent yields heretofore obtained in the smoke from ventilated cigarettes.
    Type: Grant
    Filed: June 29, 1977
    Date of Patent: November 20, 1979
    Assignee: Olin Corporation
    Inventors: Richard H. Martin, William F. Owens, Jr.
  • Patent number: 4145533
    Abstract: 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 from 18.degree. to 30.degree. C. in an aqueous solution of sodium hydroxide and carbon disulfide. The amount of regenerated cellulose scrap added to the solution is controlled to maintain the total cellulose concentration at from 3 to 5% by weight of the solution. At least 38% by weight carbon disulfide based on the weight of the cellulose is used in the solution and the solution is made up to contain from about 10.3 to 11.3% by weight sodium hydroxide based on the weight of the solution so that sufficient sodium hydroxide is present to give about 9.5 to 10.5% by weight in the resulting scrap viscose.
    Type: Grant
    Filed: July 26, 1978
    Date of Patent: March 20, 1979
    Assignee: Olin Corporation
    Inventor: Dennis L. Farrall
  • Patent number: 4119105
    Abstract: 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 a resilient flap member responsive to the puff pressure drop for restricting or closing off smoke drawn through the smoking article and which will reopen after the pressure is relieved, thereby limiting each puff to a predetermined yield consistent with that obtainable in a normal puff.
    Type: Grant
    Filed: January 31, 1977
    Date of Patent: October 10, 1978
    Assignee: Olin Corporation
    Inventor: William F. Owens, Jr.
  • Patent number: 4112154
    Abstract: 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 base paper relative to the porosity of the base paper. The viscosity of the ink is progressively increased or decreased relative to decreases or increases respectively in the porosity of the base paper to arrive at a predetermined uniform final porosity in the printed paper.
    Type: Grant
    Filed: September 2, 1977
    Date of Patent: September 5, 1978
    Assignee: Olin Corporation
    Inventors: Stuart Wayne McCarty, Clarence Morris O'Shields
  • Patent number: 4108151
    Abstract: 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 least 50% by weight based on the weight of the paper. Preferably, the amount of gamma alumina filler will range from 50 to 80%. In addition to reducing organic vapor phase constituents, the paper has unique advantages over conventional cigarette paper wrappers in that the visible sidestream smoke eminating from the smoking article is reduced.
    Type: Grant
    Filed: March 10, 1977
    Date of Patent: August 22, 1978
    Assignee: Olin Corporation
    Inventors: R. Hugo Martin, William F. Owens, Jr.
  • Patent number: 4100396
    Abstract: 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 adapted to rotate in a direction parallel to the direction of the moving web and connected to an intermittent high voltage source and the ground electrode comprising means adapted to move in a direction at right angles to the direction of rotation of the charged electrode.
    Type: Grant
    Filed: February 14, 1977
    Date of Patent: July 11, 1978
    Assignee: Olin Corporation
    Inventor: Richard Hugo Martin
  • Patent number: 4091170
    Abstract: 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 copolymer coating composition containing from about 0.4 to 1.5% by weight of an alkali metal salt of lauryl sulfate and from about 0.2 to 1.0% by weight of an alkaline earth metal stearate, alkali metal stearate, or ammonium stearate. In addition, the composition may also contain from 0.4 to 1.0% lecithin. The coating composition provides good packaging machine runnability properties in a single coating on organic polymeric films without impairing heat-sealability, and its appearance in response to high relative humidity exposure can be varied in degrees of antifogging characteristics by adjustment of the sulfate and stearate additive concentrations.
    Type: Grant
    Filed: October 31, 1977
    Date of Patent: May 23, 1978
    Assignee: Olin Corporation
    Inventor: John N. Godfrey
  • Patent number: 4088728
    Abstract: 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. Those areas of the film containing more moisture before drying tend to be thicker than those areas containing less moisture resulting in gauge variations throughout the film. Since the gauge variations are randomly imparted to the film across its width, they do not pile up on top of one another to form gauge bands when the film is wound into rolls and the effect on roll formation of any gauge bands inherently present in the film from the casting operation are minimized due to the (superimposed) randomly imparted gauge variations. Preferably, the method comprises imparting the random gauge variations in the film by producing diagonal tracks of water on the film with a transversely moving squeegee band containing a plurality of slight indentations.
    Type: Grant
    Filed: March 7, 1977
    Date of Patent: May 9, 1978
    Assignee: Olin Corporation
    Inventor: John N. Godfrey
  • Patent number: 4082098
    Abstract: 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 air permeable wrap encircling the filter plug impregnated with the volatile flavoring agent, enclosed in a perforated or inherently porous air permeable tipping envelope. As the cigarette is smoked, air is drawn through the ventilation area of the tipping, through the flavor-impregnated filter plug wrap and into the filter carrying the volatile flavoring agent with it where it mixes with the smoke, thereby imparting flavor to the cigarette smoke. Since the flavor-impregnated plug wrap is tightly enclosed between the tipping envelope and filter plug, loss of the volatile flavoring agent is minimized, thereby enabling longer shelf life without reduction in flavor potency. Moreover, high delivery rates are achieved using minimum amounts of flavoring agent.
    Type: Grant
    Filed: October 28, 1976
    Date of Patent: April 4, 1978
    Assignee: Olin Corporation
    Inventor: William F. Owens, Jr.
  • Patent number: 4076934
    Abstract: 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, the nitrogen is metered into the alkali cellulose near the bottom of the feeder hopper before being fed into the xanthator, thereby allowing air entrained therein to be displaced by the nitrogen as it transfuses through the alkali cellulose.
    Type: Grant
    Filed: October 22, 1976
    Date of Patent: February 28, 1978
    Assignee: Olin Corporation
    Inventor: Gordon D. Mills
  • Patent number: 4060684
    Abstract: 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 washing the shredded film with a tetrahydrofuran solution containing from 2 to 15% by weight water in an extractor, (c) removing the spent wash solution containing softener, coating resin, tetrahydrofuran, and water and rapidly evaporating tetrahydrofuran therefrom while allowing the coating resin to inherently precipitate from the softener, (d) drying the shredded cellophane after removal of the spent wash solution to recover retained tetrahydrofuran and pure cellulose, (e) recycling tetrahydrofuran obtained from the flash evaporating and drying steps to the extractor, and (f) separating the precipitated coating resin from the softener.
    Type: Grant
    Filed: September 1, 1976
    Date of Patent: November 29, 1977
    Assignee: Olin Corporation
    Inventor: Donald Wayne Monk
  • Patent number: 4035611
    Abstract: 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 said web as it passes between said spaced electrodes having a narrow slot in which the ground electrode travels parallel to the surface of said plate, said surface recessed along both sides of said slot to provide a collection area for particulate matter produced from perforating said web and means for removing said particulate matter from said collection area.
    Type: Grant
    Filed: June 1, 1976
    Date of Patent: July 12, 1977
    Assignee: Olin Corporation
    Inventors: Richard Hugo Martin, William F. Owens, Jr.
  • Patent number: 4029938
    Abstract: 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 adapted to rotate in a direction parallel to the direction of the moving web and connected to an intermittent high voltage source and the ground electrode comprising means adapted to move in a direction at right angles to the direction of rotation of the charged electrode.
    Type: Grant
    Filed: February 2, 1976
    Date of Patent: June 14, 1977
    Assignee: Olin Corporation
    Inventor: Richard Hugo Martin
  • Patent number: 4021594
    Abstract: 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 having an average particle fiber length within the range of from 10 to 150 microns.
    Type: Grant
    Filed: April 2, 1976
    Date of Patent: May 3, 1977
    Assignee: Olin Corporation
    Inventor: John N. Godfrey
  • Patent number: 4009319
    Abstract: 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 ester-urethane adhesive. The resulting laminate structure possesses superior resistance to delamination when compared with similar laminates of coated regenerated cellulose film and aluminum foil or such laminates in which the cellulosic film is softened with conventional monomers, such as ethylene glycol, propylene glycol or glycerin. Preferred softeners for use in the combination are polyethylene glycols or polypropylene glycols having a molecular weight ranging from 200 to 800.
    Type: Grant
    Filed: March 1, 1976
    Date of Patent: February 22, 1977
    Assignee: Olin Corporation
    Inventor: Warren K. Cline
  • Patent number: 3993082
    Abstract: 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 addition to carbon, the filler may include an alkaline earth metal carbonate or oxide such as calcium carbonate or magnesium oxide to further enhance the properties of the paper as a tobacco substitute. The carbon filled paper may be cut or shredded to simulate natural tobacco and can be used as a blend with tobacco in smoking articles.
    Type: Grant
    Filed: May 5, 1975
    Date of Patent: November 23, 1976
    Assignee: Olin Corporation
    Inventors: R. Hugo Martin, William F. Owens, Jr., Stuart W. McCarty
  • Patent number: 3983761
    Abstract: 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 without sacrificing other performance criteria. The warp is made from combed sak cotton fiber threads, with a multiplicity of such threads mercerized and plied together to form each warp thread. The filling threads are made up of a multifilament synthetic core wrapped with cotton fiber with a multiplicity of such wrapped threads plied together to form each filling thread. Endless belts made according to this invention have a wear life approximating three times the normal wear life of conventional belts used on cigarette making machines.
    Type: Grant
    Filed: October 28, 1975
    Date of Patent: October 5, 1976
    Assignee: Olin Corporation
    Inventor: Emory Eugene Stewart