US Patent 11459458 Hydrolysis resistant polyamides
Patent 11459458 was granted and assigned to Ascend Performance Materials on October, 2022 by the United States Patent and Trademark Office.
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Patent Number
114594580
Date of Patent
October 4, 2022
0Patent Application Number
167889480
Date Filed
February 12, 2020
0Patent Primary Examiner
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US Patent 11459458 Hydrolysis resistant polyamides
Article
A hydrolysis resistant polyamide composition comprising from 50 wt % to 80 wt % polyamide polymer having a theoretical amine end group content of at least 55 μeq/gram; and from 25 wt % to 60 wt % glass fibers. The weight ratio of polyamide polymer to glass fibers ranges from 0.5:1 to 4.0:1. The polyamide composition comprises less than 0.06 wt % copper; and/or from 1 ppb to 0.24 wt % non-copper metal halide compound. The polyamide composition, when hydrolysis aged for 500 hours at 130° C., demonstrates an impact resilience greater than 40 kJ/m
Infobox
Is a
Patent Applicant
Current Assignee
Patent Jurisdiction
Patent Number
114594580
Date of Patent
October 4, 2022
0Patent Application Number
167889480
Date Filed
February 12, 2020
0Patent Primary Examiner
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