Patents by Inventor Murali K. Akkapeddi

Murali K. Akkapeddi 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).

  • Publication number: 20110262668
    Abstract: The present invention provides a multilayer plastic bottle comprising layers of PET and a polyamide such as, for example, MXD6, that is free from occurrence of delamination upon dropping or upon exposure to impact. The present inventors have found that when forming a barrier layer containing an adhesion promoting agent according to the present invention, an impact energy applied to the barrier layer is well reduced and the resultant multilayer bottle is improved in interlaminar bonding strength and prevented from suffering from delamination upon dropping, etc.
    Type: Application
    Filed: April 27, 2010
    Publication date: October 27, 2011
    Applicant: GRAHAM PACKAGING COMPANY, L.P.
    Inventors: Murali K. Akkapeddi, Brian A. Lynch
  • Patent number: 6793994
    Abstract: Oxygen barrier polymer compositions exhibiting high oxygen scavenging capability suitable for extended shelf-life, packaging applications. These polymer compositions comprise at least one ethylene vinyl alcohol copolymer, at least one oxidizable polydiene, and at least one metal salt catalyst. The polymer products are particularly suited to making barrier packaging articles such as monolayer or multi-layer films, sheets, tubes, pipes, thermoformed containers and coinjection/coextrusion blow molded bottles comprising PET, polyolefin or polycarbonate as structural layers. Such articles are useful in a variety of oxygen-sensitive food, beverage, pharmaceutical and health care product packaging applications.
    Type: Grant
    Filed: March 7, 2001
    Date of Patent: September 21, 2004
    Assignee: Honeywell International Inc.
    Inventors: Mingliang L. Tsai, Murali K. Akkapeddi
  • Patent number: 6756444
    Abstract: Oxygen scavenging barrier polyamide compositions exhibiting high oxygen scavenging capability as well as good coinjection stretch blow moldability characteristics suitable for making multilayer PET bottles with good clarity and delamination resistance are claimed in this invention. The polyamide compositions of this invention comprise a slow crystallizing polyamide blend comprising (i) an amorphous, semiaromatic polyamide homopolymer, copolymer or mixture thereof and (ii) a semicrystalline, aliphatic polyamide homopolymer, copolymer or mixture thereof wherein in the weight ratio of (i):(ii) ranges from about 99:1 to about 30:70; at least one polyamide-compatible, oxidizable polydiene; and at least one oxidation promoting metal salt catalyst. The multilayer PET bottles, made with the polyamide compositions of this invention as the barrier layer, are suitable for extended shelf-life packaging of oxygen-sensitive food and beverage products such as beer and juices.
    Type: Grant
    Filed: February 14, 2002
    Date of Patent: June 29, 2004
    Assignee: Honeywell International Inc.
    Inventors: Murali K. Akkapeddi, Edward P. Socci, Timothy J. Kraft
  • Patent number: 6740698
    Abstract: Oxygen barrier polyamide compositions exhibiting high oxygen scavenging capability suitable for extended shelf-life packaging applications. Thus a polyamide composition comprises a polyamide homopolymer, copolymer, or blends thereof, and at least one polyamide reactive, oxidizable polydiene or oxidizable polyether. The polyamide products are particularly suited to making barrier packaging articles such as monolayer or multi-layer films, sheets, thermoformed containers and coinjection/coextrusion blow molded bottles comprising PET, polyolefin or polycarbonate as structural layers. Such articles are useful in a variety of oxygen-sensitive food, beverage, pharmaceutical and health care product packaging applications.
    Type: Grant
    Filed: October 4, 2001
    Date of Patent: May 25, 2004
    Assignee: Honeywell International Inc.
    Inventors: Murali K. Akkapeddi, Timothy J. Kraft, Edward P. Socci
  • Patent number: 6723443
    Abstract: This invention relates to blends of nylon homopolymers and copolymers with poly(hydroxyamino ether) polymers. More particularly, there are provided blends of nylon 6 and its copolymers with poly(hydroxyamino ether) which form films having high miscibility, high clarity and good processability.
    Type: Grant
    Filed: November 21, 2001
    Date of Patent: April 20, 2004
    Assignee: Honeywell International Inc.
    Inventors: Mingliang L. Tsai, Murali K. Akkapeddi, Clark V. Brown, Darnell C. Worley, II
  • Patent number: 6685861
    Abstract: Oxygen barrier polyamide compositions exhibiting high oxygen scavenging capability suitable for extended shelf-life, packaging applications. Thus a polyamide composition comprises a polyamide homopolymer, copolymer, or blends thereof, and at least one polyamide reactive, oxidizable polydiene or oxidizable polyether. The polyamide products are particularly suited to making barrier packaging articles such as monolayer or multi-layer films, sheets, thermoformed containers and coinjection/coextrusion blow molded bottles comprising PET, polyolefin or polycarbonate as structural layers. Such articles are useful in a variety of oxygen-sensitive food, beverage, pharmaceutical and health care product packaging applications.
    Type: Grant
    Filed: January 4, 2002
    Date of Patent: February 3, 2004
    Assignee: Honeywell International Inc.
    Inventors: Murali K. Akkapeddi, Timothy J. Kraft, Edward P. Socci
  • Patent number: 6656993
    Abstract: Oxygen scavenging barrier polyamide compositions exhibiting high oxygen scavenging capability as well as good coinjection stretch blow moldability characteristics suitable for making multilayer PET bottles with good clarity and delamination resistance are claimed in this invention. The polyamide compositions of this invention comprise a slow crystallizing polyamide blend comprising (i) an amorphous, semiaromatic polyamide homopolymer, copolymer or mixture thereof and (ii) a semicrystalline, aliphatic polyamide homopolymer, copolymer or mixture thereof wherein in the weight ratio of (i):(ii) ranges from about 99:1 to about 30:70; at least one polyamide-compatible, oxidizable polydiene; and at least one oxidation promoting metal salt catalyst. The multilayer PET bottles, made with the polyamide compositions of this invention as the barrier layer, are suitable for extended shelf-life packaging of oxygen-sensitive food and beverage products such as beer and juices.
    Type: Grant
    Filed: February 14, 2002
    Date of Patent: December 2, 2003
    Assignee: Honeywell International Inc.
    Inventors: Murali K. Akkapeddi, Edward P. Socci, Timothy J. Kraft, Darnell C. Worley, II, Jeffrey D. Pratt, Clark V. Brown
  • Patent number: 6610234
    Abstract: Oxygen scavenging barrier polyamide compositions exhibiting high oxygen scavenging capability as well as good coinjection stretch blow moldability characteristics suitable for making multilayer PET bottles with good clarity and delamination resistance are claimed in this invention. The polyamide compositions of this invention comprise a slow crystallizing polyamide blend comprising (i) an amorphous, semiaromatic polyamide homopolymer, copolymer or mixture thereof and (ii) a semicrystalline, aliphatic polyamide homopolymer, copolymer or mixture thereof wherein in the weight ratio of (i):(ii) ranges from about 99:1 to about 30:70; at least one polyamide-compatible, oxidizable polydiene; and at least one oxidation promoting metal salt catalyst. The multilayer PET bottles, made with the polyamide compositions of this invention as the barrier layer, are suitable for extended shelf-life packaging of oxygen-sensitive food and beverage products such as beer and juices.
    Type: Grant
    Filed: February 14, 2002
    Date of Patent: August 26, 2003
    Assignee: Honeywell International Inc.
    Inventors: Murali K. Akkapeddi, Edward P. Socci, Timothy J. Kraft, Darnell C. Worley, II, Jeffrey D. Pratt, Clark V. Brown
  • Publication number: 20030104218
    Abstract: This invention relates to blends of nylon homopolymers and copolymers with poly(hydroxyamino ether) polymers. More particularly, there are provided blends of nylon 6 and its copolymers with poly(hydroxyamino ether) which form films having high miscibility, high clarity and good processability.
    Type: Application
    Filed: November 21, 2001
    Publication date: June 5, 2003
    Inventors: Mingliang L. Tsai, Murali K. Akkapeddi, Clark V. Brown, Darnell C. Worley
  • Publication number: 20030045641
    Abstract: Oxygen scavenging barrier polyamide compositions exhibiting high oxygen scavenging capability as well as good coinjection stretch blow moldability characteristics suitable for making multilayer PET bottles with good clarity and delamination resistance are claimed in this invention. The polyamide compositions of this invention comprise a slow crystallizing polyamide blend comprising (i) an amorphous, semiaromatic polyamide homopolymer, copolymer or mixture thereof and (ii) a semicrystalline, aliphatic polyamide homopolymer, copolymer or mixture thereof wherein in the weight ratio of (i):(ii) ranges from about 99:1 to about 30:70; at least one polyamide-compatible, oxidizable polydiene; and at least one oxidation promoting metal salt catalyst. The multilayer PET bottles, made with the polyamide compositions of this invention as the barrier layer, are suitable for extended shelf-life packaging of oxygen-sensitive food and beverage products such as beer and juices.
    Type: Application
    Filed: February 14, 2002
    Publication date: March 6, 2003
    Applicant: Honeywell International Inc.
    Inventors: Murali K. Akkapeddi, Edward P. Socci, Timothy J. Kraft, Darnell C. Worley, Jeffrey D. Pratt, Clark V. Brown
  • Publication number: 20030045640
    Abstract: Oxygen barrier polyamide compositions exhibiting high oxygen scavenging capability suitable for extended shelf-life, packaging applications. Thus a polyamide composition comprises a polyamide homopolymer, copolymer, or blends thereof, and at least one polyamide reactive, oxidizable polydiene or oxidizable polyether. The polyamide products are particularly suited to making barrier packaging articles such as monolayer or multi-layer films, sheets, thermoformed containers and coinjection/coextrusion blow molded bottles comprising PET, polyolefin or polycarbonate as structural layers. Such articles are useful in a variety of oxygen-sensitive food, beverage, pharmaceutical and health care product packaging applications.
    Type: Application
    Filed: January 4, 2002
    Publication date: March 6, 2003
    Applicant: Honeywell International Inc.
    Inventors: Murali K. Akkapeddi, Timothy J. Kraft, Edward P. Socci
  • Publication number: 20030036605
    Abstract: Oxygen scavenging barrier polyamide compositions exhibiting high oxygen scavenging capability as well as good coinjection stretch blow moldability characteristics suitable for making multilayer PET bottles with good clarity and delamination resistance are claimed in this invention. The polyamide compositions of this invention comprise a slow crystallizing polyamide blend comprising (i) an amorphous, semiaromatic polyamide homopolymer, copolymer or mixture thereof and (ii) a semicrystalline, aliphatic polyamide homopolymer, copolymer or mixture thereof wherein in the weight ratio of (i):(ii) ranges from about 99:1 to about 30:70; at least one polyamide-compatible, oxidizable polydiene; and at least one oxidation promoting metal salt catalyst. The multilayer PET bottles, made with the polyamide compositions of this invention as the barrier layer, are suitable for extended shelf-life packaging of oxygen-sensitive food and beverage products such as beer and juices.
    Type: Application
    Filed: February 14, 2002
    Publication date: February 20, 2003
    Applicant: Honeywell International Inc.
    Inventors: Murali K. Akkapeddi, Edward P. Socci, Timothy J. Kraft, Darnell C. Worley, Jeffrey D. Pratt, Clark V. Brown
  • Publication number: 20020193523
    Abstract: Oxygen scavenging barrier polyamide compositions exhibiting high oxygen scavenging capability as well as good coinjection stretch blow moldability characteristics suitable for making multilayer PET bottles with good clarity and delamination resistance are claimed in this invention. The polyamide compositions of this invention comprise a slow crystallizing polyamide blend comprising (i) an amorphous, semiaromatic polyamide homopolymer, copolymer or mixture thereof and (ii) a semicrystalline, aliphatic polyamide homopolymer, copolymer or mixture thereof wherein in the weight ratio of (i):(ii) ranges from about 99:1 to about 30:70; at least one polyamide-compatible, oxidizable polydiene; and at least one oxidation promoting metal salt catalyst. The multilayer PET bottles, made with the polyamide compositions of this invention as the barrier layer, are suitable for extended shelf-life packaging of oxygen-sensitive food and beverage products such as beer and juices.
    Type: Application
    Filed: February 14, 2002
    Publication date: December 19, 2002
    Applicant: Honeywell International Inc.
    Inventors: Murali K. Akkapeddi, Edward P. Socci, Timothy J. Kraft, Darnell C. Worley, Jeffrey D. Pratt, Clark V. Brown
  • Publication number: 20020176953
    Abstract: Oxygen barrier polymer compositions exhibiting high oxygen scavenging capability suitable for extended shelf-life, packaging applications. These polymer compositions comprise at least one ethylene vinyl alcohol copolymer, at least one oxidizable polydiene, and at least one metal salt catalyst. The polymer products are particularly suited to making barrier packaging articles such as monolayer or multi-layer films, sheets, tubes, pipes, thermoformed containers and coinjection/coextrusion blow molded bottles comprising PET, polyolefin or polycarbonate as structural layers. Such articles are useful in a variety of oxygen-sensitive food, beverage, pharmaceutical and health care product packaging applications.
    Type: Application
    Filed: March 7, 2001
    Publication date: November 28, 2002
    Inventors: Mingliang L. Tsai, Murali K. Akkapeddi
  • Publication number: 20020172833
    Abstract: Oxygen barrier films exhibiting high oxygen scavenging capability suitable for extended shelf-life, packaging applications. These films comprise a polyamide homopolymer, copolymer, or blends thereof; an ethylene vinyl alcohol copolymer; an oxidizable polydiene; and at least one metal salt catalyst. These films are particularly suited to making high barrier, retortable packaging structures such as pouches, containers etc. Such articles are useful for packaging a variety of oxygen-sensitive foods, beverage, medical and health care products.
    Type: Application
    Filed: March 9, 2001
    Publication date: November 21, 2002
    Inventors: Mingliang L. Tsai, Murali K. Akkapeddi
  • Patent number: 6479160
    Abstract: Oxygen barrier films exhibiting high oxygen scavenging capability suitable for extended shelf-life, packaging applications. These films comprise a polyamide homopolymer, copolymer, or blends thereof; an ethylene vinyl alcohol copolymer; an oxidizable polydiene; and at least one metal salt catalyst. These films are particularly suited to making high barrier, retortable packaging structures such as pouches, containers etc. Such articles are useful for packaging a variety of oxygen-sensitive foods, beverage, medical and health care products.
    Type: Grant
    Filed: March 9, 2001
    Date of Patent: November 12, 2002
    Assignee: Honeywell International Inc.
    Inventors: Mingliang L. Tsai, Murali K. Akkapeddi
  • Publication number: 20020099125
    Abstract: Oxygen barrier polyamide compositions exhibiting high oxygen scavenging capability suitable for extended shelf-life, packaging applications. Thus a polyamide composition comprises a polyamide homopolymer, copolymer, or blends thereof, and at least one polyamide reactive, oxidizable polydiene or oxidizable polyether. The polyamide products are particularly suited to making barrier packaging articles such as monolayer or multi-layer films, sheets, thermoformed containers and coinjection/coextrusion blow molded bottles comprising PET, polyolefin or polycarbonate as structural layers. Such articles are useful in a variety of oxygen-sensitive food, beverage, pharmaceutical and health care product packaging applications.
    Type: Application
    Filed: October 4, 2001
    Publication date: July 25, 2002
    Applicant: Honeywell International Inc.
    Inventors: Murali K. Akkapeddi, Timothy J. Kraft, Edward P. Socci
  • Patent number: 6423776
    Abstract: Oxygen barrier polyamide compositions exhibiting high oxygen scavenging capability suitable for extended shelf-life, packaging applications. Thus a polyamide composition comprises a polyamide homopolymer, copolymer, or blends thereof, and at least one polyamide reactive, oxidizable polydiene or oxidizable polyether. The polyamide products are particularly suited to making barrier packaging articles such as monolayer or multi-layer films, sheets, thermoformed containers and coinjection/coextrusion blow molded bottles comprising PET, polyolefin or polycarbonate as structural layers. Such articles are useful in a variety of oxygen-sensitive food, beverage, pharmaceutical and health care product packaging applications.
    Type: Grant
    Filed: May 2, 2000
    Date of Patent: July 23, 2002
    Assignee: Honeywell International Inc.
    Inventors: Murali K. Akkapeddi, Timothy J. Kraft, Edward P. Socci
  • Patent number: 6410156
    Abstract: Oxygen scavenging barrier polyamide compositions exhibiting high oxygen scavenging capability as well as good coinjection stretch blow moldability characteristics suitable for making multilayer PET bottles with good clarity and delamination resistance are claimed in this invention. The polyamide compositions of this invention comprise a slow crystallizing polyamide blend comprising (i) an amorphous, semiaromatic polyamide homopolymer, copolymer or mixture thereof and (ii) a semicrystalline, aliphatic polyamide homopolymer, copolymer or mixture thereof wherein in the weight ratio of (i):(ii) ranges from about 99:1 to about 30:70; at least one polyamide-compatible, oxidizable polydiene; and at least one oxidation promoting metal salt catalyst. The multilayer PET bottles, made with the polyamide compositions of this invention as the barrier layer, are suitable for extended shelf-life packaging of oxygen-sensitive food and beverage products such as beer and juices.
    Type: Grant
    Filed: March 6, 2001
    Date of Patent: June 25, 2002
    Assignee: Honeywell International Inc.
    Inventors: Murali K. Akkapeddi, Edward P. Socci, Timothy J. Kraft, Darnell C. Worley, II, Jeffrey D. Pratt, Clark V. Brown
  • Patent number: 5814384
    Abstract: An article of manufacture which has a high resistance to chemicals, solvents, and heat formed from a blend of (A) a polyamide, such as polycaprolactam; (B) a functionalized polyethylene, such as low density polyethylene; and (C) an unfunctionalized low density polyethylene. The blend has a melt viscosity suitable for extrusion into convoluted tubing, nonconvoluted tubing, sheets, films, and the like.
    Type: Grant
    Filed: December 13, 1996
    Date of Patent: September 29, 1998
    Assignee: AlliedSignal, Inc.
    Inventors: Murali K. Akkapeddi, Sengshiu Chung, Michael P. May