C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 77/06 (2006.01) C08L 77/00 (2006.01)
Patent
CA 2086500
The present invention relates to new transparent amorphous compositions, more specifically transparent amorphous compositions having a high concentration of chemical agents (solvents), and objects manufactured from them. The compositions contain two polyamides consisting of aliphatic units, terephtalic acid and/or isophtalic units and cycloaliphatic diamine units. One of the two polyamides has a high concentration of aliphatic units wheras the other has a low concentration of aliphatic units.
La présente invention a pour objet de nouvelles compositions amorphes transparentes et, plus particulièrement, des compositions amorphes transparentes présentant une tenue aux agents chimiques (solvants) élevée, ainsi que les objets fabriqués à partir de celles-ci. Ces compositions comprennent deux polyamides constitués de motifs aliphatiques, acide téréphtalique et/ou isophtalique, diamine cycloaliphatique. L'un des deux polyamides a une teneur en motif aliphatique élevée tandis que l'autre a une teneur en motif aliphatique faible.
Blondel Philippe
Maj Philippe
Elf Atochem S.a.
Robic
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