Resin composition, prepreg using the same, and fiber-reinforced composite material

Patent metadata

Field	Value
Publication number	US-9701815-B2
Application number	US-201113812422-A
Country	US
Kind code	B2
Filing date	Jul 26, 2011
Priority date	Jul 26, 2010
Publication date	Jul 11, 2017
Grant date	Jul 11, 2017

Abstract

A resin composition that has good heat resistance and handleability and that can produce a prepreg which has a good balance between tackyness and drapability and which causes little resin flow during prepreg molding, a prepreg that is manufactured using the resin composition, and a fiber-reinforced composite are provided. A resin composition that contains a maleimide compound, diallyl bisphenol A, and a diallyl isophthalate polymer, a prepreg in which reinforcing fibers are impregnated with the resin composition, and a fiber-reinforced composite material that is obtained by molding the prepreg are provided.

First claim

The invention claimed is:

1. A resin composition comprising
an aromatic maleimide compound,
an aliphatic maleimide compound,
diallyl bisphenol A and
a diallyl isophthalate polymer,

wherein the resin composition is a blend in which the following formulas are satisfied when amounts of the aromatic maleimide compound, the aliphatic maleimide compound, the diallyl bisphenol A and the diallyl isophthalate polymer are represented by [a1], [a2], [b] and [c], respectively, in parts by mass:
[ a 1]+[ a 2]=100  (1)

[ b ]≧20  (2)

[ b ]≦−1.4×[ a 2]+140  (3)

[ b ]≧−3.6×[ a 2]+90  (4)

15≦[ c ]≦65  (5)

0≦[ a 2]≦45  (6).

2. A resin composition comprising
an aromatic maleimide compound,
an aliphatic maleimide compound,
diallyl bisphenol A and
a diallyl isophthalate polymer,

wherein the resin composition is a blend in which the following formulas are satisfied when the amounts of the aromatic maleimide compound, the aliphatic maleimide compound, the diallyl bisphenol A and the diallyl isophthalate polymer are represented by [a1], [a2], [b] and [c], respectively, in parts by mass:
[ a 1]+[ a 2]=100  (7)

40≦[ b ]≦80  (8)

15≦[ a 2]≦40  (9)

20≦[ c ]≦60  (10).

3. The resin composition according to claim 1 or 2 , wherein a weight average molecular weight of the diallyl isophthalate polymer is 30000 or more and 50000 or less in terms of standard polystyrene equivalent.

4. A prepreg obtained by impregnating reinforcing fibers with a resin composition according to claim 1 or 2 .

5. The prepreg according to claim 4 , wherein the reinforcing fibers are carbon fibers.

6. A fiber-reinforced composite material obtained by molding a prepreg according to claim 4 .

7. The resin composition according to claim 1 , wherein the aromatic maleimide compound is a mixture of aromatic maleimide compounds represented by the following formula I:

wherein “n” in formula I is 0.3 to 0.4 on average.

8. The resin composition according to claim 1 , wherein the aliphatic maleimide compound is a polyfunctional maleimide compound that has two or more maleimide compounds in which a main chain that links the maleimide compounds is mainly composed of hydrocarbon.

9. The resin composition according to claim 1 , wherein the aromatic maleimide compound is selected from the group consisting of N,N′-m-phenylenedimaleimide, N,N′-p-phenylenedimaleimide, 4,4′-bismaleimidodiphenylether, bisphenol A diphenyl ether bismaleimide, 3,3′-dimethyl-5,5′-diethyl-4,4′-bismaleimidodiphenylmethane, 4-methyl-1,3-phenylenedimaleimide, 2,2-bis-[4-(4-maleimidophenoxy)phenyl]propane, N,N′-2,4-tolylenedimaleimide and N,N′-2,6-tolylenedimaleimide.

10. The resin composition according to claim 1 , wherein the aliphatic maleimide compound is 1,6-dimaleimido-(2,2,4-trimethyl)hexane.

11. The resin composition according to claim 1 or 2 , wherein the composition further comprises a peroxide.

12. The resin composition according to claim 2 , wherein the aromatic maleimide compound is selected from the group consisting of N,N′-m-phenylenedimaleimide, N,N′-p-phenylenedimaleimide, 4,4′-bismaleimidodiphenylether, bisphenol A diphenyl ether bismaleimide, 3,3′-dimethyl-5,5′-diethyl-4,4′-bismaleimidodiphenylmethane, 4-methyl-1,3-phenylenedimaleimide, 2,2-bis-[4-(4-maleimidophenoxy)phenyl]propane, N,N′-2,4-tolylenedimaleimide and N,N′-2,6-tolylenedimaleimide.

13. The resin composition according to claim 2 , wherein the aliphatic maleimide compound is 1,6-dimaleimido-(2,2,4-trimethyl)hexane.

Assignees

• Harada Yukihiro
• Kaneko Manabu
• Sano Tomoo
• Mitani Kazutami
• Mitsubishi Rayon Co

Inventors

• Harada Yukihiro
• Kaneko Manabu
• Sano Tomoo
• Mitani Kazutami

Classifications

• C08J2367/06

  Unsaturated polyesters · CPC title

• C08F267/06

  on to polymers of esters · CPC title

• C08K5/3415 Primary

  Five-membered rings · CPC title

• C08L47/00

  Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds; Compositions of derivatives of such polymers (C08L45/00 takes precedence; of conjugated diene rubbers C08L9/00 - C08L21/00) · CPC title

• C08F222/40

  Imides, e.g. cyclic imides · CPC title