Transparent polyamides

Details Transparent polyamides Transparent polyamides

C - Chemistry, Metallurgy

08

G

402/239

C08G 69/26 (2006.01)

Patent

CA 1063293

ABSTRACT OF THE DISCLOSURE: Transparent polyamides, containing residues of terephthalic acid and 2-methylpentamethylendiamine. These are characterised by the presence of residues of 2-ethyl- tetramethylendiamine and/or of isophtalic acid in a con- centration altogether of 15 - 30 % by gram molecule, relative to the sum of all diamine - or all dicarboxylic acid - residues. The polyamides of the invention have good mechanical properties and good solvent resistance, more particularly alcohol resistance, and are suitable for use in the pro- duction of mold bodies with permanent transparency.

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