Copolyimides with a combination of flexibilizing groups

Details Copolyimides with a combination of flexibilizing groups Copolyimides with a combination of flexibilizing groups

C - Chemistry, Metallurgy

08

G

402/221, 402/33

C08G 73/10 (2006.01) C07D 209/48 (2006.01) C08J 5/12 (2006.01)

Patent

CA 1276746

Abstract Novel copolyimides are prepared by reacting one or more aromatic dianhydrides with a meta-substituted phenylene diamine and an aromatic bridged diamine. The incorporation of meta-substituted phenylene diamine derived units and bridged aromatic diamine derived units into the linear aromatic polymer backbone results in a copolyimide of improved flexibility, processability, and melt-flow characteristics. The novel copolyimides are especially useful as thermoplastic hot-melt adhesives.

511903

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