Invention Grant
US07641950B2 Polyester/polyamide blend having improved flavor retaining property and clarity
有权
聚酯/聚酰胺共混物具有改善的风味保持性能和透明度
- Patent Title: Polyester/polyamide blend having improved flavor retaining property and clarity
- Patent Title (中): 聚酯/聚酰胺共混物具有改善的风味保持性能和透明度
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Application No.: US12017147Application Date: 2008-01-21
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Publication No.: US07641950B2Publication Date: 2010-01-05
- Inventor: Steven Lee Stafford , Mark Edward Stewart , Benjamin Bradford Gamble
- Applicant: Steven Lee Stafford , Mark Edward Stewart , Benjamin Bradford Gamble
- Applicant Address: US TN Kingsport
- Assignee: Eastman Chemical Company
- Current Assignee: Eastman Chemical Company
- Current Assignee Address: US TN Kingsport
- Agent Jennifer R. Knight; Bernard J. Graves, Jr.
- Main IPC: C08L67/00
- IPC: C08L67/00 ; C08L77/00
Abstract:
This invention relates to a polyester/polyamide blend having an excellent gas barrier property. More particularly, the present invention relates to combinations of a polyethylene terephthalate polymer and a polyamide polymer having an excellent gas barrier property and short oxygen scavenging induction periods, where the polyamide polymer has a C:A terminal group concentration ratio of 2:1 or more and a C+A terminal group concentration of at least 0.17 meq/g of polyamide polymer, wherein C represents a cumulative total of a terminal carboxyl group concentration and a terminal hydrocarbyl group concentration expressed in meq/g of polyamide, and A represents a terminal amine group concentration expressed in meq/g of polyamide.
Public/Granted literature
- US20080118690A1 POLYESTER/POLYAMIDE BLEND HAVING IMPROVED FLAVOR RETAINING PROPERTY AND CLARITY Public/Granted day:2008-05-22
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