Polyamide compositions having improved gas barrier properties

Details Polyamide compositions having improved gas barrier properties Polyamide compositions having improved gas barrier properties

C - Chemistry, Metallurgy

08

G

402/234, 400/580

C08G 69/26 (2006.01) C08L 77/00 (2006.01) C08L 77/06 (2006.01)

Patent

CA 2020481

Abstract Of the Invention A polyamide composition comprising the following recurring units: A Image B C in proportions such that the mole ratio of the dicarboxylic acid moieties in the A, B and C units is about 49.5/0.5/0-20/0.5-49.5 and wherein R is a divalent radical comprising Image and - (CH2)6 - in a mole ratio of about 0.5-50/49.5-0 and preferably having a glass transition temperature of 90°C or greater and an oxygen transmission rate of about 2.0 cc- mil/100 in2-day-atm or less.

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