Invention Grant
- Patent Title: Multi-layered coextruded tube
- Patent Title (中): 多层共挤出管
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Application No.: US12793157Application Date: 2010-06-03
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Publication No.: US08211517B2Publication Date: 2012-07-03
- Inventor: Marvin M. Martens , Annakutty Mathew , Georgios Topoulos
- Applicant: Marvin M. Martens , Annakutty Mathew , Georgios Topoulos
- Applicant Address: US DE Wilmington
- Assignee: EI du Pont de Nemours and Company
- Current Assignee: EI du Pont de Nemours and Company
- Current Assignee Address: US DE Wilmington
- Main IPC: B29D22/00
- IPC: B29D22/00
Abstract:
Multi-layered co-extruded tubes are provided that include an outer layer including a first semiaromatic semicrystalline polyamide having a melt temperature of about 240° C. to 280° C., and a thermal stabilizer; and an inner layer including a second semiaromatic semicrystalline polyamide having a glass transition equal to or greater than 100° C.
Public/Granted literature
- US20100307625A1 MULTI-LAYERED COEXTRUDED TUBE Public/Granted day:2010-12-09
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