Invention Grant
US08349932B2 Polyamide compositions with improved salt resistance and heat stability
失效
具有改善的耐盐性和热稳定性的聚酰胺组合物
- Patent Title: Polyamide compositions with improved salt resistance and heat stability
- Patent Title (中): 具有改善的耐盐性和热稳定性的聚酰胺组合物
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Application No.: US13015616Application Date: 2011-01-28
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Publication No.: US08349932B2Publication Date: 2013-01-08
- Inventor: Shailesh Ratilal Doshi , Annakutty Mathew , Marvin M. Martens
- Applicant: Shailesh Ratilal Doshi , Annakutty Mathew , Marvin M. Martens
- Applicant Address: US DE Wilmington
- Assignee: E I du Pont de Nemours and Company
- Current Assignee: E I du Pont de Nemours and Company
- Current Assignee Address: US DE Wilmington
- Main IPC: C08K3/10
- IPC: C08K3/10 ; C08K3/22
Abstract:
Disclosed is a polyamide composition including at least one semi-aromatic copolyamide, said semi-aromatic copolyamide consisting essentially of about 25 to about 55 mole percent repeat units of the formula —C(O)(CH2)mC(O)NHCH2ArCH2NH— (I) and about 45 to about 75 mole percent repeat units of the formula —C(O)(CH2)mC(O)NH(CH2)nNH— (II) wherein m is 8, 10, and/or 12, n is 6, 10 and/or 12 and Ar is a meta-substituted benzene ring; and said polyamide has a melting point equal to or less than 225° C.; and 0.25 to 20 weight percent of one or more polyhydroxy polymer(s) having a number average molecular weight of at least 2000 and selected from the group consisting of ethylene/vinyl alcohol copolymer and poly(vinyl alcohol). Also disclosed are molded or extruded articles including the polyamide composition.
Public/Granted literature
- US20110190433A1 POLYAMIDE COMPOSITIONS WITH IMPROVED SALT RESISTANCE AND HEAT STABILITY Public/Granted day:2011-08-04
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