Patents Assigned to Callaway Corporation
  • Stabilization of encapsulated colloidal metal oxides
    Patent number: 6096802
    Abstract: The stability of colloidal metal oxide particles which have been encapsulated in a polymer resin is extended by the addition of a water-soluble polyacrylamide polymer.
    Type: Grant
    Filed: June 7, 1999
    Date of Patent: August 1, 2000
    Assignee: Callaway Corporation
    Inventor: John C. Lark
  • Process for preparing a dyed textile fabric wherein the dyed fabric is coated with a mixture of resins
    Patent number: 5976196
    Abstract: An improved method for fixing color of a dyed textile by coating a dyed textile with a mixture of (i) an aminopolyamide-epichlorohydrin resin and (ii) a glyoxylated acrylamide-dimethyl diallyl ammonium chloride resin.
    Type: Grant
    Filed: June 15, 1998
    Date of Patent: November 2, 1999
    Assignee: Callaway Corporation
    Inventors: Anthony B Cooper, Richard T. Underwood, Geoffrey A. Monteith, Michael D. Wright
  • Stabilization of encapsulated colloidal metal oxides
    Patent number: 5965636
    Abstract: The stability of colloidal metal oxide particles which have been encapsulated in a polymer resin is extended by the addition of a solution polymerized polyacrylamide polymer.
    Type: Grant
    Filed: August 4, 1998
    Date of Patent: October 12, 1999
    Assignee: Callaway Corporation
    Inventor: John C. Lark
  • Process of after-treating dyed cellulose fabrics with a glyoxalated acrylamide polymer
    Patent number: 5951719
    Abstract: An improved method for fixing color of a dyed textile fabric by coating a dyed textile with an acrylamide polymer which has been reacted with glyoxal at a mole ratio of glyoxal to polymer of at least 0.8:1. Preferably the dyed textile fabric has been pre-coated with an anionic polymer.
    Type: Grant
    Filed: June 15, 1998
    Date of Patent: September 14, 1999
    Assignee: Callaway Corporation
    Inventors: Anthony Cooper, Richard T. Underwood, Geoffrey Monteith, Michael Wright
  • Method for imparting strength to paper
    Patent number: 5783041
    Abstract: A method for imparting dry strength to paper by adding to a pulp slurry during a paper-making process a mixed resin solution containing (i) an aminopolyamide-epichlorohydrin resin and (ii) a glyoxylated acrylamide-dimethyl diallyl ammonium chloride resin, in combination with (iii) a high charge density cationic polymer.
    Type: Grant
    Filed: April 18, 1996
    Date of Patent: July 21, 1998
    Assignee: Callaway Corporation
    Inventor: Richard T. Underwood
  • Process for sizing spun yarns
    Patent number: 5626952
    Abstract: A process for sizing spun yarns by adding urea in an amount of about 10 to 50% by weight of the weight of a polyacrylamide polymer, wherein the polymer and urea are applied in an amount sufficient to impart a high order of abrasion resistance to the yarn.
    Type: Grant
    Filed: December 15, 1995
    Date of Patent: May 6, 1997
    Assignee: Callaway Corporation
    Inventors: Michael L. McAbee, Warren S. Perkins, Donald H. Shomake
  • Process for deinking of recycled paper
    Patent number: 5622597
    Abstract: A process for deinking recycled paper using a pressurized deinking module to separate ink from paper pulp stock. The addition of salts of imidazolinium based compounds with alkyl, alkenyl and amidoethyl side chains to the pulp slurry at the beginning of the pressurized deinking module cycle removes ink more effectively and results in a brighter recycled paper and an increase in yield of final paper stock.
    Type: Grant
    Filed: January 24, 1995
    Date of Patent: April 22, 1997
    Assignee: Callaway Corporation
    Inventors: John W. Callen, Alicia Anderson-Norris