Polyamide thermosets

Patent · Tue Mar 30 00:00:00 EST 1993

OSTI ID:6047115

Benicewicz, B C; Hoyt, A E

The present invention provides (1) curable polyamide monomers represented by the formula: R[sup 1]-A[sup 1]-B[sup 1]-A[sup 2]-B[sup 2]-A[sup 3]-R[sup 2] where R[sup 1] and R[sup 2] are radicals selected from the group consisting of maleimide, substituted maleimide, nadimide, substituted nadimide, ethynyl, and (C(R[sup 3])[sub 2])[sub 2] where R[sup 3] is hydrogen with the proviso that the two carbon atoms of (C(R[sup 3])[sub 2])[sub 2] are bound on the aromatic ring of A[sup 1] or A[sup 3] to adjacent carbon atoms, A[sup 1] and A[sup 3] are 1,4-phenylene and the same where said group contains one or more substituents selected from the group consisting of halo, e.g., fluoro, chloro, bromo, or iodo, nitro, lower alkyl, e.g., methyl, ethyl, and propyl, lower alkoxy, e.g., methoxy, ethoxy, or propoxy, and fluoroalkyl or fluoroalkoxy, e.g., trifluoromethyl, pentafluoroethyl and the like, A[sup 2] is selected from the group consisting of 1,4-phenylene, 4,4[prime]-biphenyl, 2,6-naphthylene and the same where said groups contain one or more substituents selected from the group consisting of halo, e.g., fluoro, chloro, bromo, or iodo, nitro, lower alkyl, e.g., methyl, ethyl, and propyl, lower alkoxy, e.g., methoxy, ethoxy, or propoxy, and fluoroalkyl or fluoroalkoxy, e.g., trifluoromethyl, pentafluoroethyl and the like, and B[sup 1] and B[sup 2] are selected from the group consisting of -C(O)-N(H)- and -N(H)-C(O)-, (2) thermoset polyamide compositions comprised of cured segments derived from monomers represented by the formula: R[sup 1]-A[sup 1]-B[sup 1]-A[sup 2]-B[sup 2]-A[sup 3]-R[sup 2] as described above, and curable blends of at least two of the polyamide monomers and (3) processes of preparing the curable polyamide monomers.

• DOE Contract Number: W-7405-ENG-36
• Assignee: Dept. of Energy, Washington, DC (United States)
• Patent Number(s): US 5198551; A
• Application Number: PPN: US 7-711721
• OSTI ID: 6047115
• Resource Relation: Patent File Date: 7 Jun 1991
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
POLYAMIDES
CHEMICAL COMPOSITION
CHEMICAL PREPARATION
THERMOPLASTICS
BIPHENYL
CURING
MOLECULAR STRUCTURE
MONOMERS
NITRO COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
PHENYLENE RADICALS
RADICALS
AROMATICS
HYDROCARBONS
MATERIALS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC POLYMERS
PETROCHEMICALS
PETROLEUM PRODUCTS
PLASTICS
POLYMERS
SYNTHESIS
SYNTHETIC MATERIALS
400201* - Chemical & Physicochemical Properties