US4957995A
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US
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Low-viscosity epoxy resin, and fiber-reinforced composite material based on m-alkyl triglycidylaminophenols
Assignee: Sumitomo Chemical Co Ltd
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Filing: 1989-09-05
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Granted: 1990-09-18
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Expires: 2009-09-05
Abstract
Abstract A low viscosity epoxy resin, i.e., a low viscosity polyglycidyl derivative, of an aminophenol having at least one alkyl group on its aromatic ring of which viscosity is 15 poises or below as measured at 25° C., a resin composition containing said resin, and a fiberreinforced composite material containing as matrix a cured product of said epoxy resin composition and a fiber as reinforcing material.
Inventors
- 👤 Yasuhisa Saito
- 👤 Katsuya Watanabe
- 👤 Kohichi Okuno
- 👤 Kunimasa Kamio
- 👤 Akira Morii
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:10
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/20; C08G59/32; C08G59/3227; C08G59/40; C08J; C08J5/00; C08J5/24; C08J5/241; C08J5/243; C08J5/249; C08L; C08L63/00; C08J2363/00; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31511
Claims Analysis
Total Claims: 33
Claim 1
Independent Claim
66 words
A method for producing an epoxy resin composition which comprises reacting an aminophenol represented by the general formula ##STR16## wherein R 1 represents a hydrogen atom or an alkyl group of 1 to 4 carbon atoms, and R 2 represents an alkyl group of 1 to 4 carbon atoms, with an eiphalohydrin to form an epoxy resin and mixing the epoxy resin with a curing agent.
Claim 2
Independent Claim
66 words
A method for producing an epoxy resin composition which comprises reacting an aminophenol represented by the general formula ##STR16## wherein R 1 represents a hydrogen atom or an alkyl group of 1 to 4 carbon atoms, and R 2 represents an alkyl group of 1 to 4 carbon atoms, with an eiphalohydrin to form an epoxy resin and mixing the epoxy resin with a curing agent.
Claim 3
Dependent Claim
11 words
A method according to claim 1, wherein the aminophenol is 4-amino-m-cresol.
Claim 4
Dependent Claim
11 words
A method according to claim 1, wherein the epihalohydrin is epichlorohydrin.
Claim 5
Dependent Claim
21 words
A method according to claim 1, wherein the amount of epihalohydrin is 3 or more per 1 mole of the aminophenol.
Claim 6
Dependent Claim
32 words
A method according to claim 1, wherein as at least one part of the curing agent, a reactive oligomer having a functional group capable of reacting with an epoxy group is used.
Claim 7
Independent Claim
50 words
A method for producing an epoxy resin composition which comprises reacting an aminophenol represented by the general formula ##STR17## wherein R 1 and R 2 are as defined above, with an epihalohydrin to form an epoxy resin, and mixing the epoxy resin, with a curing agent and a thermoplastic resin.
Claim 8
Independent Claim
50 words
A method for producing an epoxy resin composition which comprises reacting an aminophenol represented by the general formula ##STR17## wherein R 1 and R 2 are as defined above, with an epihalohydrin to form an epoxy resin, and mixing the epoxy resin, with a curing agent and a thermoplastic resin.
Claim 9
Dependent Claim
11 words
A method according to claim 6, wherein the aminophenol is 4-amino-m-cresol.
Claim 10
Dependent Claim
11 words
A method according to claim 6, wherein the epihalohydrin is epichlorohydrin.
Claim 11
Dependent Claim
21 words
A method according to claim 6, wherein the amount of epihalohydrin is 3 or more per 1 mole of the aminophenol.
Claim 12
Dependent Claim
32 words
A method according to claim 6, wherein as at least one part of the curing agent, a reactive oligomer having a functional group capable of reacting with an epoxy group is used.
Claim 13
Dependent Claim
36 words
An epoxy resin composition comprising an epoxy resin obtained by reacting an aminophenol represented by the general formula ##STR18## wherein R 1 and R 2 are as defined above, with an epihalohydrin and a curing agent.
Claim 14
Dependent Claim
36 words
An epoxy resin composition comprising an epoxy resin obtained by reacting an aminophenol represented by the general formula ##STR18## wherein R 1 and R 2 are as defined above, with an epihalohydrin and a curing agent.
Claim 15
Dependent Claim
13 words
An epoxy resin composition according to claim 11, wherein the aminophenol is 4-amino-m-cresol.
Claim 16
Dependent Claim
13 words
An epoxy resin composition according to claim 11, wherein the epihalohydrin is epichlorohydrin.
Claim 17
Dependent Claim
23 words
An epoxy resin composition according to claim 11, wherein the amount of epihalohydrin is 3 or more per 1 mole of the aminophenol.
Claim 18
Dependent Claim
22 words
An epoxy resin composition according to claim 11, which contains a reactive oligomer as at least one portion of the curing agent.
Claim 19
Dependent Claim
39 words
An epoxy resin composition comprising an epoxy resin obtained by reacting an aminophenol represented by the general formula ##STR19## wherein R 1 and R 2 are as defined above, with an epihalohydrin, a curing agent and a thermoplastic resin.
Claim 20
Dependent Claim
39 words
An epoxy resin composition comprising an epoxy resin obtained by reacting an aminophenol represented by the general formula ##STR19## wherein R 1 and R 2 are as defined above, with an epihalohydrin, a curing agent and a thermoplastic resin.
Claim 21
Dependent Claim
12 words
An epoxy resin according to claim 16, wherein the aminophenol is 4-amino-m-cresol.
Claim 22
Dependent Claim
12 words
An epoxy resin according to claim 16, wherein the epihalohydrin is epichlorohydrin.
Claim 23
Dependent Claim
22 words
An epoxy resin according to claim 16, wherein the amount of epihalohydrin is 3 or more per 1 mole of the aminophenol.
Claim 24
Dependent Claim
22 words
An epoxy resin composition according to claim 16, which contains a reactive oligomer as at least one portion of the curing agent.
Claim 25
Dependent Claim
52 words
A fiber-reinforced composite material which comprises a cured product of an epoxy resin composition containing, as its indispensable components, a polyglycidyl derivative of an amiophenol represented by the general formula ##STR20## wherein R 1 and R 2 are as defined above, a curing agent as matrix and a fiber as reinforcing material.
Claim 26
Dependent Claim
52 words
A fiber-reinforced composite material which comprises a cured product of an epoxy resin composition containing, as its indispensable components, a polyglycidyl derivative of an amiophenol represented by the general formula ##STR20## wherein R 1 and R 2 are as defined above, a curing agent as matrix and a fiber as reinforcing material.
Claim 27
Dependent Claim
21 words
A fiber-reinforced composite material according to claim 21, wherein said epoxy curing agent is a diaminodiphenylsulfone compound and/or a diaminodiphenylmethane compound.
Claim 28
Dependent Claim
62 words
A heat-resistance composite material which comprises a cured product of an epoxy resin composition comprising, as its indispensable components, (A) a polyglycidyl derivative of an aminophenol represented by the general formula ##STR21## wherein R 1 and R 2 are as defined above, (B) N,N,N',N'-tetraglycidylbis(aminophenyl)-methane and/or its condensation product, and (D) an epoxy curing agent as matrix and a fiber as reinforcing material.
Claim 29
Dependent Claim
62 words
A heat-resistance composite material which comprises a cured product of an epoxy resin composition comprising, as its indispensable components, (A) a polyglycidyl derivative of an aminophenol represented by the general formula ##STR21## wherein R 1 and R 2 are as defined above, (B) N,N,N',N'-tetraglycidylbis(aminophenyl)-methane and/or its condensation product, and (D) an epoxy curing agent as matrix and a fiber as reinforcing material.
Claim 30
Dependent Claim
21 words
A heat-resistant composite material according to claim 23, wherein said epoxy curing agent is a diaminodiphenylsulfone compound and/or a diaminodiphenylmethane compound.
Claim 31
Dependent Claim
72 words
A fiber-reinforced composite material which comprises a cured product of an epoxy resin composition comprising, as its indispensable components, (A) a plyglycidyl derivative of an aminophenol represented by the general formula ##STR22## wherein R 1 and R 2 are as defined above, (C) phenol novolac epoxy resin, cresol novolac epoxy resin and/or Bisphenol A diglycidyl ether epoxy resin, and (D) an epoxy curing agent as matrix and a fiber as reinforcing material.
Claim 32
Dependent Claim
72 words
A fiber-reinforced composite material which comprises a cured product of an epoxy resin composition comprising, as its indispensable components, (A) a plyglycidyl derivative of an aminophenol represented by the general formula ##STR22## wherein R 1 and R 2 are as defined above, (C) phenol novolac epoxy resin, cresol novolac epoxy resin and/or Bisphenol A diglycidyl ether epoxy resin, and (D) an epoxy curing agent as matrix and a fiber as reinforcing material.
Claim 33
Dependent Claim
15 words
A fiber-reinforced composite material according to claim 25, wherein said epoxy curing agent is dicyandiamide.
References Cited (Backward Citations)
US2951822A
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US2951825A
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JPS5569616A
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JPS5592757A
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