Claims
- 1. A polyaminobismaleimide resin-forming composition consisting essentially of
- (a) 100 parts by weight of the polyaminobismaleimide resin-forming composition consisting essentially of (i) a bismaleimide compound represented by the following general formula (I): ##STR6## wherein R.sup.1 means a divalent group of ##STR7## and X denotes a direct bond or a group selected from the group consisting of a divalent hydrocarbon group having 1 to 10 carbon atoms, a hexafluorinated isopropylidene group, a carbonyl group, a thio group, a sulfinyl group, a sulfonyl group and an oxo group, and (ii) a diamine compound represented by the following general formula (II): ##STR8## wherein R.sup.2 means a divalent group of ##STR9## and X denotes a direct bond or a group selected from the group consisting of a divalent hydrocarbon group having 1 to 10 carbon atoms, a hexafluorinated isopropylidene group, a carbonyl group, a thio group, a sulfinyl group, a sulfonyl group and an oxo group, and
- (b) 10 to 400 parts by weight of a fibrous reinforcing material selected from the group consisting of glass fibers and carbon fibers, wherein the glass fibers have a length of 0.3 mm to 4 mm and the carbon fibers have a diameter of 5 .mu.m to 20 .mu.m and an aspect ratio of from 1 to 600.
- 2. The composition as claimed in claim 1, wherein the general formula (I), R.sup.1 is ##STR10## and X is a direct bond.
- 3. The composition as claimed in claim 1, wherein in the general formula (I), R.sup.1 is ##STR11##
- 4. The composition as claimed in claim 1, wherein in the general formula (I), R.sup.1 is ##STR12## and X is an isopropylidene group.
- 5. The composition as claimed in claim 1, wherein in the general formula (I), R.sup.1 is ##STR13## and X is a thio group.
- 6. The composition as claimed in claim 1, wherein in the general formula (II), R.sup.2 is ##STR14## and X is a direct bond.
- 7. The composition as claimed in claim 1, wherein in the general formula (II), R.sup.2 is ##STR15##
- 8. The composition as claimed in claim 1, wherein in the general formula (II), R.sup.2 is ##STR16## and X is an isopropylidene group.
- 9. The composition as claimed in claim 1, wherein in the general formula (II), R.sup.2 is ##STR17## and X is a thio group.
- 10. The composition as claimed in claim 1, wherein said mixture of said bismaleimide compound and said diamine compound are subjected to a heat treatment, whereby a prepolymer is formed.
- 11. The composition as claimed in claim 1, wherein said polyaminobismaleimide resin forming composition contains 0.1 to 1.2 moles of said diamine compound per mole of said bismaleimide compound.
- 12. The composition as claimed in claim 1 wherein the content of the fibrous reinforcing material is 20 to 400 parts by weight.
Priority Claims (2)
Number |
Date |
Country |
Kind |
62-97415 |
May 1987 |
JPX |
|
62-97416 |
May 1987 |
JPX |
|
Parent Case Info
This application is a continuation of prior U.S. application Ser. No. 183,990 filed on Apr. 20, 1988, now abandoned.
US Referenced Citations (5)
Foreign Referenced Citations (2)
Number |
Date |
Country |
0107897 |
May 1984 |
EPX |
0253586 |
Jan 1988 |
EPX |
Non-Patent Literature Citations (1)
Entry |
Katz et al., Handbook of Fillers and Reinforcements for Plastics: Van Nostrand Reinhold Co., 1978, pp. 61, 62. |
Continuations (1)
|
Number |
Date |
Country |
Parent |
183990 |
Apr 1988 |
|