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).
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Publication number: 20110262668Abstract: 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: ApplicationFiled: April 27, 2010Publication date: October 27, 2011Applicant: GRAHAM PACKAGING COMPANY, L.P.Inventors: Murali K. Akkapeddi, Brian A. Lynch
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Patent number: 6793994Abstract: 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: GrantFiled: March 7, 2001Date of Patent: September 21, 2004Assignee: Honeywell International Inc.Inventors: Mingliang L. Tsai, Murali K. Akkapeddi
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Patent number: 6756444Abstract: 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: GrantFiled: February 14, 2002Date of Patent: June 29, 2004Assignee: Honeywell International Inc.Inventors: Murali K. Akkapeddi, Edward P. Socci, Timothy J. Kraft
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Patent number: 6740698Abstract: 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: GrantFiled: October 4, 2001Date of Patent: May 25, 2004Assignee: Honeywell International Inc.Inventors: Murali K. Akkapeddi, Timothy J. Kraft, Edward P. Socci
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Patent number: 6723443Abstract: 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: GrantFiled: November 21, 2001Date of Patent: April 20, 2004Assignee: Honeywell International Inc.Inventors: Mingliang L. Tsai, Murali K. Akkapeddi, Clark V. Brown, Darnell C. Worley, II
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Patent number: 6685861Abstract: 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: GrantFiled: January 4, 2002Date of Patent: February 3, 2004Assignee: Honeywell International Inc.Inventors: Murali K. Akkapeddi, Timothy J. Kraft, Edward P. Socci
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Patent number: 6656993Abstract: 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: GrantFiled: February 14, 2002Date of Patent: December 2, 2003Assignee: Honeywell International Inc.Inventors: Murali K. Akkapeddi, Edward P. Socci, Timothy J. Kraft, Darnell C. Worley, II, Jeffrey D. Pratt, Clark V. Brown
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Patent number: 6610234Abstract: 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: GrantFiled: February 14, 2002Date of Patent: August 26, 2003Assignee: Honeywell International Inc.Inventors: Murali K. Akkapeddi, Edward P. Socci, Timothy J. Kraft, Darnell C. Worley, II, Jeffrey D. Pratt, Clark V. Brown
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Publication number: 20030104218Abstract: 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: ApplicationFiled: November 21, 2001Publication date: June 5, 2003Inventors: Mingliang L. Tsai, Murali K. Akkapeddi, Clark V. Brown, Darnell C. Worley
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Publication number: 20030045641Abstract: 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: ApplicationFiled: February 14, 2002Publication date: March 6, 2003Applicant: Honeywell International Inc.Inventors: Murali K. Akkapeddi, Edward P. Socci, Timothy J. Kraft, Darnell C. Worley, Jeffrey D. Pratt, Clark V. Brown
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Publication number: 20030045640Abstract: 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: ApplicationFiled: January 4, 2002Publication date: March 6, 2003Applicant: Honeywell International Inc.Inventors: Murali K. Akkapeddi, Timothy J. Kraft, Edward P. Socci
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Publication number: 20030036605Abstract: 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: ApplicationFiled: February 14, 2002Publication date: February 20, 2003Applicant: Honeywell International Inc.Inventors: Murali K. Akkapeddi, Edward P. Socci, Timothy J. Kraft, Darnell C. Worley, Jeffrey D. Pratt, Clark V. Brown
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Publication number: 20020193523Abstract: 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: ApplicationFiled: February 14, 2002Publication date: December 19, 2002Applicant: Honeywell International Inc.Inventors: Murali K. Akkapeddi, Edward P. Socci, Timothy J. Kraft, Darnell C. Worley, Jeffrey D. Pratt, Clark V. Brown
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Publication number: 20020176953Abstract: 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: ApplicationFiled: March 7, 2001Publication date: November 28, 2002Inventors: Mingliang L. Tsai, Murali K. Akkapeddi
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Publication number: 20020172833Abstract: 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: ApplicationFiled: March 9, 2001Publication date: November 21, 2002Inventors: Mingliang L. Tsai, Murali K. Akkapeddi
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Patent number: 6479160Abstract: 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: GrantFiled: March 9, 2001Date of Patent: November 12, 2002Assignee: Honeywell International Inc.Inventors: Mingliang L. Tsai, Murali K. Akkapeddi
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Publication number: 20020099125Abstract: 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: ApplicationFiled: October 4, 2001Publication date: July 25, 2002Applicant: Honeywell International Inc.Inventors: Murali K. Akkapeddi, Timothy J. Kraft, Edward P. Socci
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Patent number: 6423776Abstract: 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: GrantFiled: May 2, 2000Date of Patent: July 23, 2002Assignee: Honeywell International Inc.Inventors: Murali K. Akkapeddi, Timothy J. Kraft, Edward P. Socci
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Patent number: 6410156Abstract: 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: GrantFiled: March 6, 2001Date of Patent: June 25, 2002Assignee: Honeywell International Inc.Inventors: Murali K. Akkapeddi, Edward P. Socci, Timothy J. Kraft, Darnell C. Worley, II, Jeffrey D. Pratt, Clark V. Brown
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Patent number: 5814384Abstract: 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: GrantFiled: December 13, 1996Date of Patent: September 29, 1998Assignee: AlliedSignal, Inc.Inventors: Murali K. Akkapeddi, Sengshiu Chung, Michael P. May