Claims
- 1. A bisimide of the formula I ##STR22## in which x is zero or 1, y is zero or 1 and x+y.ltoreq.2, R.sup.1 is hydrogen or methyl and R.sup.2 is C.sub.1 -C.sub.3 alkyl or benzyl and R is --C.sub.m H.sub.2m --in which m=2-20, cycloalkylene having 5 to 10 C atoms, bis-(methylene)-arylene having 8 to 12 C atoms or a group of the formula II ##STR23## in which T is methylene, isopropylidene, CO, O, S or SO.sub.2.
- 2. A bisimide of the formula I, according to claim 1, in which R is --(CH.sub.2).sub.p --in which p=2-12, cyclohexylene, bis-(methylene)-cyclohexane, bis-(cyclohexylene)-methane, phenylene, xylylene or a group of the formula II according to claim 1 in which T is methylene, O or SO.sub.2.
- 3. A bisimide of the formula I, according to claim 2, in which R is 1,4-phenylene, 1,4-xylylene or bis-(1,4-phenylene)-methane.
- 4. A composition of matter containing a bisimide of the formula I, according to claim 1, produced by reacting a bismaleimide of the formula II ##STR24## with 0.4 to 1.6 equivalents of a cyclopentadiene of formula IV ##STR25## in which the symbols R, R.sup.1, R.sup.2, x and y are as defined in claim 1.
- 5. A composition of matter as claimed in claim 4, in which 0.7 to 1.3 equivalents of the cyclopentadiene of the formula IV are employed per bismaleimide of the formula III.
Priority Claims (1)
Number |
Date |
Country |
Kind |
1992/87 |
May 1987 |
CHX |
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Parent Case Info
This application is a continuation-in-part of application Ser. No. 192,979, filed May 12, 1988, now abandoned.
US Referenced Citations (15)
Non-Patent Literature Citations (5)
Entry |
C.A. 100:156317r (1984). |
C.A. 94:84922d (1981). |
C.A. 108:55230d (1988). |
J. Org. Chem. USSR, 23(5), pp. 869-875 (1987). |
C.A. 74:53729d (1971). |
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
192979 |
May 1988 |
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