Bismaleimide compounds

Patent · Tue Jan 14 00:00:00 EST 1986

OSTI ID:865740

Adams, Johnnie E ^[1]; Jamieson, Donald R ^[2]

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1. Grandview, MO
2. Merriam, KS

Bismaleimides of the formula ##STR1## wherein R.sub.1 and R.sub.2 each independently is H, C.sub.1-4 -alkyl, C.sub.1-4 -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 alkylene bridging group, optionally, is substituted by 1-3 methyl groups or by fluorine, form polybismaleimide resins which have valuable physical properties. Uniquely, these compounds permit extended cure times, i.e., they remain fluid for a time sufficient to permit the formation of a homogeneous melt prior to curing.

• Research Organization: Kansas City Plant (KCP), Kansas City, MO (United States)
• DOE Contract Number: AC04-76DP00613
• Assignee: United States of America as Represented by United States (Washington, DC)
• Patent Number(s): US 4564683
• Application Number: 06/598,620
• OSTI ID: 865740
• Country of Publication: United States
• Language: English

Related Subjects

bismaleimide
compounds
bismaleimides
formula
str1
independently
1-4
-alkyl
-alkoxy
c1
br
form
fused
6-membered
hydrocarbon
aromatic
proviso
t-butyl
t-butoxy
1-3
alkylene
bridging
optionally
substituted
methyl
fluorine
polybismaleimide
resins
valuable
physical
properties
uniquely
permit
extended
cure
times
remain
fluid
time
sufficient
formation
homogeneous
melt
prior
curing
physical properties
time sufficient
hydrocarbon aromatic
homogeneous melt
form poly
/999/526/