Patents by Inventor John Francis Hagman

John Francis Hagman has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Highly-resilient thermoplastic compositions
    Patent number: 7375151
    Abstract: A thermoplastic composition is provided, comprising (a) an acid copolymer, (b) a salt of a high molecular weight, monomeric organic acid; (c) a thermoplastic resin; (d) a cation source; and (e) optionally, a filler. Also provided are one-, two- and three-piece golf balls, and multi-layered golf balls comprising the composition of the invention.
    Type: Grant
    Filed: October 12, 2004
    Date of Patent: May 20, 2008
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Robert Joseph Statz, John Chu Chen, John Francis Hagman
  • Highly-resilient thermoplastic elastomer compositions
    Patent number: 6815480
    Abstract: A thermoplastic composition of (a) an acid copolymer, (b) a salt of a high molecular weight, monomeric organic acid; (c) a thermoplastic polymer selected from copolyetheresters, elastomeric polyolefins, styrene diene block copolymers, elastomeric polyolefins thermoplastic polyurethanes and copolyetheramides; (d) cation source; and (d) optionally a filler. Also included is use of such compositions in components of one-, two- and three-piece golf balls or multi-layered golf balls made therefrom.
    Type: Grant
    Filed: September 22, 2001
    Date of Patent: November 9, 2004
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Robert Joseph Statz, John C. Chen, John Francis Hagman
  • Highly-resilient thermoplastic elastomer compositions
    Publication number: 20020091188
    Abstract: A thermoplastic composition of (a) an acid copolymer, (b) a salt of a high molecular weight, monomeric organic acid; (c) a thermoplastic polymer selected from copolyetheresters, elastomeric polyolefins, styrene diene block copolymers, elastomeric polyolefins thermoplastic polyurethanes and copolyetheramides; (d) cation source; and (d) optionally a filler. Also included is use of such compositions in components of one-, two- and three-piece golf balls or multi-layered golf balls made therefrom.
    Type: Application
    Filed: September 22, 2001
    Publication date: July 11, 2002
    Inventors: Robert Joseph Statz, John C. Chen, John Francis Hagman
  • Modified-ionomers having improved properties and processability
    Patent number: 5973046
    Abstract: Ionomers based on ethylene/unsaturated carboxylic acid copolymers are modified with from 0.5 to 15 weight percent adipic acid. The modified-ionomers have improved melt flow and melt processing behavior over unmodified ionomers having a comparable level of neutralization of acid groups present. Certain mechanical properties are improved, particularly stiffness, abrasion resistance and low temperature izod impact. The ionomers modified with adipic acid are in particular suitable for balata ball replacement when formulated as golf ball cover compositions and covers.
    Type: Grant
    Filed: February 4, 1998
    Date of Patent: October 26, 1999
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: John Chu Chen, John Francis Hagman
  • Soft ionomer compositions and blends thereof and use thereof as golf ball structural materials
    Patent number: 5691418
    Abstract: Novel, soft, low modulus ethylene copolymer ionomer compositions containing an acrylate softening monomer, neutralized with magnesium or lithium ions possess a higher level of resilience at a given level of PGA Compressibility than known ionomers. The advantage is maintained in certain blend compositions with harder ionomers for blends having a neat-sphere PGA Compression below about 155. Both unblended and blended compositions will be useful as golf balls and components of golf balls, for one-piece balls, centers, cores and covers of golf balls.
    Type: Grant
    Filed: June 30, 1995
    Date of Patent: November 25, 1997
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: John Francis Hagman, Robert Joseph Statz