초록 ▼

Polyamide advanced composites are formed by the condensation of diacid halides (or dicarboxylic acids) and diamines in a linear or multidimensional morphology with crosslinkable end caps that provide improved solvent- resistance. The diamines and diacid halides generally include “sulfone”linkages in

Polyamide advanced composites are formed by the condensation of diacid halides (or dicarboxylic acids) and diamines in a linear or multidimensional morphology with crosslinkable end caps that provide improved solvent- resistance. The diamines and diacid halides generally include “sulfone”linkages in aryl chains to impart the desired combination of physical properties to the oligomers, prepregs, and composites. Linear oligomers have mono- or difunctional crosslinking end caps at the ends of polyarylamide chains. Multidimensional oligomers have a hub and three or more radiating amide arms, each arm having a mono- or difunctional crosslinking end cap at its distal end.

대표청구항 ▼

A composition of matter, comprising a compound selected from the group consisting of: E－CONH－P－NHCO－m－E; E－NHCO－Q－CONH－m－E; Ar－n; Ar－n; Ar－n; Ar－n; Ar－n; or Ar－n; wherein m is a small integer; Ar is an aromatic moiety; n is 3 or 4; E is a crosslinkable end cap monomer for improving solvent resistan

A composition of matter, comprising a compound selected from the group consisting of: E－CONH－P－NHCO－m－E; E－NHCO－Q－CONH－m－E; Ar－n; Ar－n; Ar－n; Ar－n; Ar－n; or Ar－n; wherein m is a small integer; Ar is an aromatic moiety; n is 3 or 4; E is a crosslinkable end cap monomer for improving solvent resistance of the cured oligomer in an the advanced composite selected from the group consisting of: [Figure] [Figure] [Figure] [Figure] [Figure] [Figure] R1 is lower alkyl, lower alkoxy, aryl, aryloxy, substituted alkyl, substituted aryl, halogen, or mixtures thereof; j is 0, 1, or 2; i is 1 or 2; Me is methyl; G is －CH2－, －O－, －S－, or －SO2－; T is allyl or methallyl; P is a linear, aromatic, organic, divalent residue of a diamine; and Q is a linear, aromatic, organic, divalent residue of a diacid halide or dicarboxylic acid.