Delayed cure bismaleimide resins

Patent · Tue Aug 07 04:00:00 EDT 1984

OSTI ID:6141181

Adams, J E; Jamieson, D R

Polybismaleimides prepared by delayed curing of bisimides having a formula 1-R/sub 1/,2-R/sub 2/,4-(2,5-DI(O=)-3-Pyrrolin-3-YL),4-((2,5-DI(O=)-3-Pyrrolin-3-YL)-(4-R/sub 1/,5-R/sub 2/-1,2Phenylene)-X-(CH/sub 2/)N-X-)Benzene wherein R/sub 1/ and R/sub 2/ each independently is H,C/sub 1//sup -//sub 4/-alkyl, C/sub 1//sup -//sub 4/-alkoxy, C1 or Br, or R/sub 1/ and R/sub 2/ together form a fused 6-membered hydrocarbon aromatic ring, with the proviso that R/sub 1/ and R/sub 2/ are not t-butyl or t-butoxy; X is O, S or Se; n is 1-3; and the-(CH/sub 2/) /SUB n/ -group, optionally, is substituted by 1-3 methyl groups or by fluorine.

• Assignee: Dept. of Energy
• Patent Number(s): US 4464520
• OSTI ID: 6141181
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360301* -- Composite Materials-- Preparation & Fabrication-- (-1987)
360304 -- Composite Materials-- Physical Properties-- (-1987)
AMIDES
AROMATICS
BISMUTH COMPOUNDS
CHEMICAL COMPOSITION
CHEMICAL PREPARATION
CHEMICAL REACTIONS
COATINGS
COMPOSITE MATERIALS
CURING
FLUORINE COMPOUNDS
HALOGEN COMPOUNDS
HYDROCARBONS
HYDROXY COMPOUNDS
MATERIALS
MOLECULAR STRUCTURE
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC POLYMERS
PETROCHEMICALS
PETROLEUM PRODUCTS
PHENOLS
PHYSICAL PROPERTIES
POLYMERIZATION
POLYMERS
POLYPHENYLS
PROTECTIVE COATINGS
RESINS
SPACE VEHICLE COMPONENTS
SYNTHESIS
THERMODYNAMIC PROPERTIES