Patents Assigned to Union Camp Corporation
  • Patent number: 5539025
    Abstract: Stable, one-component, curable epoxy resin and polyamide resin dispersions and methods for the preparation of the same are described, wherein the polyamide resin dispersion has a stability enhancing, water soluble, dipolar chemical moiety.
    Type: Grant
    Filed: March 16, 1995
    Date of Patent: July 23, 1996
    Assignee: Union Camp Corporation
    Inventors: George A. Smith, Charles R. Frihart
  • Patent number: 5529396
    Abstract: A method of making a factory end for a bag assembly, in which a removable plastic bag will be contained within a protective outer bag, includes steps of providing a tube assembly having a plastic inner tube within an outer tube; sealing one end of the plastic inner tube so as to be closed at said one end; and closing the outer tube about the closed one end of the inner tube in such a manner that no plastic material from said inner tube is permanently affixed to the outer tube, whereby the outer tube may be efficiently recycled or incinerated after it is separated from the inner tube by a consumer. The bag assembly itself is disclosed as a separate aspect of the invention. Methods for making the tube assemblies are also disclosed.
    Type: Grant
    Filed: November 10, 1993
    Date of Patent: June 25, 1996
    Assignee: Union Camp Corporation
    Inventors: Arthur M. Pryor, Lattie G. Futch, Robert W. Bolling, Jr.
  • Patent number: 5515977
    Abstract: A recyclable protective cradle and a recyclable edge protective packaging and distribution system for preventing rolling and allowing distribution and shipping of rolls of laminar stock rollingly oriented on a pallet. The protective cradle is formed of an interengaging pallet covering and a series of wedge members which act as chocks to prevent the roll from rotating. A wedge removal system allows for the selective removal of one or more wedge members to allow the roll to freely be removed from the protective cradle.
    Type: Grant
    Filed: August 10, 1995
    Date of Patent: May 14, 1996
    Assignee: Union Camp Corporation
    Inventor: William E. Lambert
  • Patent number: 5488220
    Abstract: A bag for popping popcorn in a microwave oven has substantially rectangular front and back face panels and gusseted side panels joining the opposite side edges thereof. Top and bottom ends of the bag are normally closed and sealed, but the top end may be opened to remove the contents of the bag. The gusseted side panels unfold during cooking to enlarge the interior volume of the bag, forming triangularly shaped corner flaps at the junctures of the side panels and the front and back panels, respectively. In conventional bags, the confronting surfaces between the triangularly shaped panels of the corner flaps move apart when the side panels unfold and the bag expands during cooking, forming pockets between the confronting surfaces in which food particles may become trapped. In the invention, spots of adhesive are placed between these confronting surfaces to hold them in contiguous relationship to one another and prevent the formation of pockets, thereby enhancing the yield of food cooked in the bag.
    Type: Grant
    Filed: July 29, 1994
    Date of Patent: January 30, 1996
    Assignee: Union Camp Corporation
    Inventors: Randall C. Freerks, Marvin A. Strouth
  • Patent number: 5482376
    Abstract: A bag of plastic construction for carrying substantial loads. The bag includes a perforated tear line with the perforations cut along a substantially arcuate shape at the corner of the bag.
    Type: Grant
    Filed: December 15, 1993
    Date of Patent: January 9, 1996
    Assignee: Union Camp Corporation
    Inventors: Angela L. Moseley, Gay A. Hoag, George W. Durbin
  • Patent number: 5458411
    Abstract: An inexpensive, strong, and easy to assemble display shelf unit made from folded blanks of corrugated liner board, includes a base member having a back panel with side panels extending forwardly from opposite edges thereof. Each side panel has a plurality of flaps on its free edge folded inwardly and rearwardly alongside the respective side panel to define a plurality of generally vertically aligned pockets. A plurality of shelf units extend between the side panels and are made from folded blanks of corrugated liner board. Each shelf unit has a downturned flap on its opposite end engaged in a respective pocket to support the shelf units on the base. Shelf supports are engaged between adjacent shelf units at approximately their midportion to reinforce the shelf units.
    Type: Grant
    Filed: September 30, 1993
    Date of Patent: October 17, 1995
    Assignee: Union Camp Corporation
    Inventor: William F. Moss
  • Patent number: 5458521
    Abstract: A storage container for use in a child's room to store toys or other items, wherein the container includes removable components that may be assembled to and removed from the container to form different objects, such as vehicles, animals, and the like, thereby making the container, itself, an entertaining and educational toy. At least some of the components of the combined storage chest and toy may be used interchangeably to make a plurality of different objects, thereby minimizing the number of pieces that must be manufactured to form a plurality of different objects.
    Type: Grant
    Filed: July 5, 1994
    Date of Patent: October 17, 1995
    Assignee: Union Camp Corporation
    Inventor: Robert S. Todd
  • Patent number: 5457239
    Abstract: A process for the preparation of a formylated aromatic compound comprising contacting an aromatic compound with (i) a halogenated compound in the presence of a Lewis acid, and (ii) a base, is described. The subject process provides an efficient and effective means of preparing formylated compounds which may be useful in a wide variety of applications.
    Type: Grant
    Filed: May 25, 1994
    Date of Patent: October 10, 1995
    Assignee: Union Camp Corporation
    Inventors: Walter C. Frank, Richard L. Veazey, John J. Mahurter, Mark J. Jenkins, Neil R. Fairfax
  • Patent number: 5455326
    Abstract: A polyamide resin useful in the preparation of hot-melt inks for ink-jet printing is prepared by the condensation polymerization reaction of a monoamine, a diacid and a third reactant selected from diamines, aminoalcohols and blends thereof. Preferably, the diacid, monoamine and third reactant are reacted together in mole ratios of 2:2:1. The polyamides afford the ink compositions with a low viscosity at the elevated operating temperatures of an ink-jet printer, yet are solid at room temperature and contribute good adhesion to the printed substrate.
    Type: Grant
    Filed: September 28, 1994
    Date of Patent: October 3, 1995
    Assignee: Union Camp Corporation
    Inventor: David W. Parker
  • Patent number: 5428083
    Abstract: Stable, one-component, curable epoxy resin and polyamide resin dispersions and methods for the preparation of the same are described, wherein the polyamide resin dispersion has a stability enhancing, water soluble, dipolar chemical moiety.
    Type: Grant
    Filed: August 20, 1993
    Date of Patent: June 27, 1995
    Assignee: Union Camp Corporation
    Inventors: George A. Smith, Charles R. Frihart
  • Patent number: 5424371
    Abstract: A thermoset adhesive composition comprising a thermoplastic, substantially amine terminated piperazine-containing and/or polyetherdiamine-containing polyamide resin, and further comprising an epoxy resin.
    Type: Grant
    Filed: February 17, 1994
    Date of Patent: June 13, 1995
    Assignee: Union Camp Corporation
    Inventors: Charles R. Frihart, Ronald L. Gordon
  • Patent number: 5407910
    Abstract: The present invention provides novel compounds such as 1,2-dimethyl-4-butyl-cyclopent-1-en-3,5-dione and 1,2-dimethyl-4,4-dibutyl-cyclopent-1-en-3,5-dione, having active floral-type aroma and methods for preparing same.
    Type: Grant
    Filed: October 12, 1993
    Date of Patent: April 18, 1995
    Assignee: Union Camp Corporation
    Inventors: Benjamin O. Isaac, Chat O. Chan, Ian M. Marr
  • Patent number: 5407985
    Abstract: Stable aqueous microdispersions of finely divided polyamide resin particles and methods for the manufacture thereof are provided. The properties of these microdispersions are achieved by the addition thereto of an effective amount of a co-surfactant such as a lower alkyl alcohol. The provided microdispersions can be drawn into films which will form clear, continuous films at ambient or near-ambient temperatures regardless of the softening point of the polyamide resin. Dispersions according to this invention find use in hot melt adhesives, coatings, inks, and the like.
    Type: Grant
    Filed: March 25, 1991
    Date of Patent: April 18, 1995
    Assignee: Union Camp Corporation
    Inventor: George A. Smith
  • Patent number: 5403823
    Abstract: The present invention relates, inter alia, to novel alkyl indane aldehyde compounds having fragrant musk-like aroma.
    Type: Grant
    Filed: January 21, 1994
    Date of Patent: April 4, 1995
    Assignee: Union Camp Corporation
    Inventor: Walter C. Frank
  • Patent number: 5401720
    Abstract: The present invention relates, inter alia, to novel alkyl tetralin aldehyde compounds having fragrant musk-like aroma.
    Type: Grant
    Filed: January 21, 1994
    Date of Patent: March 28, 1995
    Assignee: Union Camp Corporation
    Inventor: Walter C. Frank
  • Patent number: 5398871
    Abstract: A container for bulk material such as pet litter is defined by four walls and a bottom wall. The top of the container is provided with a carrying handle and a pour spout. During shipping and storage the pour spout is closed to prevent spillage of material from the container, but when it is desired to dispense material from the container the pour spout is unfolded to an open position. In a preferred embodiment the container is made from corrugated cardboard, and the pour spout is formed by perforated diagonal fold lines in an end flap and the adjacent side flaps. The size of the flaps and the placement of the fold lines confines the pour spout to one end of the top of the container, and the resultant pour spout has a generally triangularly shaped bottom wall and upstanding side walls, whereby accurate control can be maintained over pouring of the material from the container.
    Type: Grant
    Filed: April 6, 1994
    Date of Patent: March 21, 1995
    Assignee: Union Camp Corporation
    Inventor: James Vescio
  • Patent number: 5389789
    Abstract: A detector for detecting edge cracks in the web in a papermaking machine includes a plurality of light sources for directing light at the web and a plurality of light sensors for receiving the light through the cracks for generating a plurality of signals indicative of the dimensions and shape of the crack. The size and shape of the cracks are determined from the sensor outputs by a processor and preferably displayed on a suitable display. Crack shapes are determined by introducing a delay parameter which relates the output for each detector channel to the time a first detector channel is triggered. In particular, the first detector channel which is triggered is given a delay value of zero, while other channels are given delay values greater than zero depending on the order of activation. The signal acquisition and analysis are designed to be compatible with a personal computer so as to ensure the system's portability.
    Type: Grant
    Filed: May 20, 1992
    Date of Patent: February 14, 1995
    Assignee: Union Camp Corporation
    Inventor: Donald D. Nguyen
  • Patent number: 5385986
    Abstract: A hot-melt adhesive composition is prepared from (1) a thermoplastic amine-terminated piperazine containing polyamide resin derived from (a) a polymerized fatty acid, (b) an aliphatic polyamine, and (c) a piperazine-containing polyamine without primary amine groups and/or a polyetherdiamine, optionally with (d) a linear dicarboxylic acid and/or a monocarboxylic acid; and (2) an epoxy resin; wherein the epoxy:amine ratio is greater than about 1:1 to less than about 10:1.
    Type: Grant
    Filed: May 5, 1994
    Date of Patent: January 31, 1995
    Assignee: Union Camp Corporation
    Inventors: Charles R. Frihart, Ronald L. Gordon
  • Patent number: 5363693
    Abstract: A method for detecting leakage from a chemical recovery boiler system of the type which includes a recovery boiler and associated output steam piping includes the steps of measuring fluid input into the recovery boiler system; measuring fluid output from the recovery boiler system; and calculating fluid leakage loss based on the differences between the measured fluid input and output values.
    Type: Grant
    Filed: August 19, 1992
    Date of Patent: November 15, 1994
    Assignee: Union Camp Corporation
    Inventor: Albert A. Nevruz
  • Patent number: 5345399
    Abstract: A system for monitoring and controlling the width of a product such as a sheet, film or tube includes, in the preferred embodiment, a line scan camera having a one-dimensional array of charge-coupled devices ("CCD's") for monitoring the width of the product. The CCD's develop an analog charge value which is proportional to the intensity of any light falling thereon; the analog nature of the CCD's allows subelement interpolation based on the voltage charge of two adjacent elements. This permits product width to be measured more accurately than was heretofore possible with electromechanical or photoelectric type systems.
    Type: Grant
    Filed: July 6, 1992
    Date of Patent: September 6, 1994
    Assignee: Union Camp Corporation
    Inventor: Steven L. Collins