Patents by Inventor Robert Joseph Statz

Robert Joseph Statz 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).

  • 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
  • Patent number: 6953820
    Abstract: Thermoplastics with high resilience (high coefficient of restitution) and softness (low Atti compressions) and their use in golf ball components. Melt-processible, highly-neutralized ethylene acid copolymers and process for making them by incorporating an aliphatic, mono-functional organic acid in the acid copolymer and then neutralizing greater than 90% of all the acid groups present.
    Type: Grant
    Filed: October 11, 2002
    Date of Patent: October 11, 2005
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Robert Joseph Statz, John Chu Chen
  • 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
  • Patent number: 6777472
    Abstract: Melt-processable, highly-neutralized ethylene, C3 to C8 &agr;,&bgr; ethylenically unsaturated carboxylic acid copolymers and process for making them. Copolymers are made by incorporating a C4 to less than a C36 aliphatic, mono-functional organic acid and neutralizing greater than 90% to 100% of the acid groups present concurrently with or subsequently to the incorporation of the organic acid.
    Type: Grant
    Filed: April 27, 2000
    Date of Patent: August 17, 2004
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Robert Joseph Statz, John Chu Chen
  • Patent number: 6743838
    Abstract: The present invention relates to polyepoxy-polymer-linked-asphalt having enhanced properties made by reacting a glycidyl-functionalized ethylene copolymer with reactive asphalt, wherein the glycidyl-functionalized ethylene copolymer has a glycidyl-containing comonomer content of 5 weight percent or less and relatively high number average molecular weight characterized by a melt index of 4 grams/10 minutes or less measured in accord with ASTM D1238-65T, Condition E.
    Type: Grant
    Filed: July 1, 2002
    Date of Patent: June 1, 2004
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Robert Joseph Statz, Elizabeth R. Griffin
  • Patent number: 6653382
    Abstract: Thermoplastics with high resilience (high coefficient of restitution) and softness (low Atti compressions) and their use in golf ball components. Melt-processible, highly-neutralized ethylene acid copolymers and process for making them by incorporating an aliphatic, mono-functional organic acid in the acid copolymer and then neutralizing greater than 90% of all the acid groups present.
    Type: Grant
    Filed: October 18, 2000
    Date of Patent: November 25, 2003
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Robert Joseph Statz, John Chu Chen
  • Publication number: 20030130434
    Abstract: Thermoplastics with high resilience (high coefficient of restitution) and softness (low Atti compressions) and their use in golf ball components. Melt-processible, highly-neutralized ethylene acid copolymers and process for making them by incorporating an aliphatic, mono-functional organic acid in the acid copolymer and then neutralizing greater than 90% of all the acid groups present.
    Type: Application
    Filed: October 11, 2002
    Publication date: July 10, 2003
    Inventors: Robert Joseph Statz, John Chu Chen
  • Publication number: 20030087997
    Abstract: The present invention relates to polyepoxy-polymer-linked-asphalt having enhanced properties made by reacting a glycidyl-functionalized ethylene copolymer with reactive asphalt, wherein the glycidyl-functionalized ethylene copolymer has a glycidyl-containing comonomer content of 5 weight percent or less and relatively high number average molecular weight characterized by a melt index of 4 grams/10 minutes or less measured in accord with ASTM D1238-65T, Condition E.
    Type: Application
    Filed: July 1, 2002
    Publication date: May 8, 2003
    Inventors: Robert Joseph Statz, Elizabeth R. Griffin
  • 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
  • Patent number: 6197884
    Abstract: This invention is directed towards golf balls comprising at least a cover and a core, and optionally one or more intermediate layers, wherein the cover and/or the intermediate layer(s) are formed from a high crystalline copolymer or its ionomer derivatives and blends thereof, wherein the high crystalline copolymer is formed from an ethylene/carboxylic acid copolymer comprising about 5 to about 35 percent by weight acrylic or methacrylic acid, wherein the copolymer is polymerized at a temperature of about 130° C. to 200° C. at pressures of at least 20,000 psi to about 50,000 psi, wherein up to about 70 percent of the acid groups are neutralized with a metal ion.
    Type: Grant
    Filed: March 23, 1999
    Date of Patent: March 6, 2001
    Assignee: Acushnet Company
    Inventors: Murali Rajagopalan, Robert Joseph Statz
  • Patent number: 6100340
    Abstract: This invention is directed towards golf balls comprising at least a cover and a core, and optionally one or more intermediate layers, wherein the cover and/or the intermediate layer(s) are formed from a high crystalline copolymer or its ionomer derivatives and blends thereof, wherein the high crystalline copolymer is formed from an ethylene/carboxylic acid copolymer comprising about 5 to about 35 percent by weight acrylic or methacrylic acid, wherein the copolymer is polymerized at a temperature of about 130.degree. C. to 200.degree. C. at pressures of at least 20,000 psi to about 50,000 psi, wherein up to about 70 percent of the acid groups are neutralized with a metal ion.
    Type: Grant
    Filed: January 16, 1997
    Date of Patent: August 8, 2000
    Assignees: Acushnet Company, E.I. Dupont DeNemours & Company
    Inventors: Murali Rajagopalan, Robert Joseph Statz
  • Patent number: 5971869
    Abstract: The present invention relates to golf balls having a cover and a core and to golf balls having a cover, a core, and an intermediate layer between the cover and the core, where the core or at least one of the intermediate layer or the core is formed from at least one terpolymer of a first monomeric component of an olefinic monomer having from about 2 to about 8 carbon atoms, a second monomeric component of an unsaturated acrylate class ester having from about 2 to about 18 carbon atoms, and a third monomeric component of at least one monomer selected from the group consisting of carbon monoxide, anhydride monomers, and monomers having a structure according to the formula ##STR1## where R.sub.1 is hydrogen or a linear chain or branched chain alkyl group of from about 1 to about 18 carbon atoms, and R.sub.2 is selected from the group consisting of linear chain alkyl, branched chain alkyl, carbocyclic, and unsubstituted aryl groups, each containing an epoxy moiety.
    Type: Grant
    Filed: May 16, 1997
    Date of Patent: October 26, 1999
    Assignees: Acushnet Company, E. I. du Pont de Nemours and Company
    Inventors: Murali Rajagopalan, Robert Joseph Statz
  • Patent number: 5889114
    Abstract: Grafted thermoplastic elastomer compositions formed by melt blending of a minor proportion of a thermoplastic material having a high softening point with a minor proportion of a glycidyl-containing copolymer, followed by melt blending of the thermoplastic material/glycidyl-containing copolymer blend with a major proportion of an acid-containing ethylene copolymer have a unique combination of unexpectedly good high temperature properties, compression set resistance and/or rebound.
    Type: Grant
    Filed: February 23, 1993
    Date of Patent: March 30, 1999
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Robert Joseph Statz
  • 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
  • Patent number: RE37597
    Abstract: The invention is directed to a golf ball comprising a core and a cover, wherein the cover comprises a blend of at lest one olefinic ionomer and a terpolymer, said terpolymer comprising a first monomeric component comprising an olefinic monomer having from about 2 to about 8 carbon atoms, a second monomeric component selected from unsaturated acrylate class ester having from about 2 to about 18 carbon atoms; and, a third monomeric component comprising at least one monomer selected from the group consisting of carbon monoxide, anhydride monomers and monomers having a structure according to the following formula wherein R1 is hydrogen or a linear chain or branched chain alkyl group of from about 1 to about 18 carbon atoms and R2 is selected from the group consisting of linear chain or branched chain alkyl, substituted or unsubstituted carbocyclic and substituted aryl groups containing an epoxy, i.e., glycidyl moiety.
    Type: Grant
    Filed: October 1, 1999
    Date of Patent: March 19, 2002
    Assignee: Acushnet Company
    Inventors: Murali Rajagopalan, Robert Joseph Statz