Patent US4435560A successfully refreshed from Google Patents.
US4435560A
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Maleimide: aryloxy diamine resin composition and process for producing same
Assignee: Hitachi Ltd
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Filing: 1981-09-09
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Granted: 1984-03-06
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Expires: 2001-09-09
Abstract
Abstract The disclosure is concerned with a maleimide-diamine resin composition which is well soluble to a low boiling point solvent and is excellent in heat resistance. The composition is featured by containing a maleimide-diamine adduct having the general formula: <IMAGE> +TR <IMAGE> wherein A is a mono-, di-, tri- or tetravalent organic group containing at least two carbon atoms, R1 through R6 are hydrogen atom, a lower alkyl group, a lower alkoxy group, chlorine atom, bromine atom, trifluoromethyl group, or trichloromethyl group, and m is an integer of 0-4.
Inventors
- 👤 Akio Takahashi
- 👤 Moloyo Wajima
- 👤 Akio Nishikawa
- 👤 Hirosada Morishita
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:11
CPC Classifications
C; C08; C08G; C08G73/00; C08G73/06; C08G73/10; C08G73/12; C08G73/124; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31721
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
117 words
A maleimide resin composition comprising a maleimide-diamine adduct having the recurring units: ##STR13## wherein A represents a mono- , di-, tri-or tetravalent organic group containing at least two carbon atoms, m represents an integer of 0 ro 4, R 1 through R 4 which are the same or different represent hydrogen atom, a lower alkyl group, a lower alkoxy group, chlorine atom or bromine atom, and R 5 and R 6 which are the same or different represent hydrogen atom, methyl group, ethyl group, trifluoromethyl group or trichloromethyl group, said adduct being soluble in an organic solvent having a boiling point of 130° C. or lower to form a solution of a concentration of 50% or more.
Claim 2
Dependent Claim
117 words
A maleimide resin composition comprising a maleimide-diamine adduct having the recurring units: ##STR13## wherein A represents a mono- , di-, tri-or tetravalent organic group containing at least two carbon atoms, m represents an integer of 0 ro 4, R 1 through R 4 which are the same or different represent hydrogen atom, a lower alkyl group, a lower alkoxy group, chlorine atom or bromine atom, and R 5 and R 6 which are the same or different represent hydrogen atom, methyl group, ethyl group, trifluoromethyl group or trichloromethyl group, said adduct being soluble in an organic solvent having a boiling point of 130° C. or lower to form a solution of a concentration of 50% or more.
Claim 3
Dependent Claim
24 words
A maleimide resin composition according to claim 1, further comprising a curing accelerator selected from the group of organic amines, imidazoles or onium salts.
Claim 4
Dependent Claim
21 words
A maleimide resin composition according to claim 1, wherein said adduct has a molecular weight from about 450 to about 4300.
Claim 5
Dependent Claim
121 words
A process for producing a heat resistant resin, comprising heating and reacting a reaction mixture comprising (I) a maleimide compound of the general formula: ##STR14## wherein A represents a mono-, di-, tri- or tetravalent organic group containing at least two carbon atoms and n represents an integer of 1-5 and (II) an ether bond-containing diamine compound of the general formula: ##STR15## wherein R 1 through R 4 which are the same or different from one another represent a hydrogen atom, a lower alkyl group, a lower alkoxyl group, chlorine atom or bromine atom, and R 5 and R 6 which are the same as or different from each other represent hydrogen atom, methyl group, ethyl group, trifluoromethyl group or trichloromethyl group.
Claim 6
Dependent Claim
121 words
A process for producing a heat resistant resin, comprising heating and reacting a reaction mixture comprising (I) a maleimide compound of the general formula: ##STR14## wherein A represents a mono-, di-, tri- or tetravalent organic group containing at least two carbon atoms and n represents an integer of 1-5 and (II) an ether bond-containing diamine compound of the general formula: ##STR15## wherein R 1 through R 4 which are the same or different from one another represent a hydrogen atom, a lower alkyl group, a lower alkoxyl group, chlorine atom or bromine atom, and R 5 and R 6 which are the same as or different from each other represent hydrogen atom, methyl group, ethyl group, trifluoromethyl group or trichloromethyl group.
Claim 7
Dependent Claim
32 words
A process for producing a heat resistant resin according to claim 4 wherein molar ratio of maleimide compound to diamine compound to be reacted is in the range of 10:1 to 1:1.2.
Claim 8
Dependent Claim
32 words
A process for producing a heat-resistant resin according to claim 4 wherein the reaction mixture comprises at least one curing accelerator selected from the group consisting of amines, imidazoles and onium salts.
Claim 9
Dependent Claim
123 words
A process for producing a maleimide resin which comprises the steps of reacting a maleimide compound having the general formula ##STR16## with a diamine having the general formula: ##STR17## to produce a maleimide-diamine adduct having the general formula: ##STR18## wherein A represents a mono-, di-, tri- or tetravalent organic group containing at least two carbon atoms, n represents an integer of 1 to 5, m represents an integer of 0 to 4, R 1 through R 4 which are the same or different represent hydrogen atom, a lower alkyl group, a lower alkoxy group, chlorine atom or bromine atom, and R 5 and R 6 which are the same or different represent hydrogen atom, methyl group, ethyl group, trifluoromethyl group or trichloromethyl group.
Claim 10
Dependent Claim
123 words
A process for producing a maleimide resin which comprises the steps of reacting a maleimide compound having the general formula ##STR16## with a diamine having the general formula: ##STR17## to produce a maleimide-diamine adduct having the general formula: ##STR18## wherein A represents a mono-, di-, tri- or tetravalent organic group containing at least two carbon atoms, n represents an integer of 1 to 5, m represents an integer of 0 to 4, R 1 through R 4 which are the same or different represent hydrogen atom, a lower alkyl group, a lower alkoxy group, chlorine atom or bromine atom, and R 5 and R 6 which are the same or different represent hydrogen atom, methyl group, ethyl group, trifluoromethyl group or trichloromethyl group.
Claim 11
Dependent Claim
14 words
The heat resistant resin produced by the process of claim 4, 5 or 6.
Claim 12
Dependent Claim
112 words
A maleimide resin composition comprising a maleimide-diamine adduct produced by heating and reacting a reaction mixture comprising at least one maleimide compound selected from the group consisting of N,N'-hexamethylene bismaleimide, N-phenylmaleimide, N,N'-m-phenylene bismaleimide, N,N'-p-phenylene bismaleimide, N,N'-4,4'-diphenylmethane bismaleimide, N,N'-4,4'-diphenyl ether bismaleimide, N,N'-methylene bis(3-chloro-p-phenylene) bismaleimide, N,N'-4,4'-diphenylsulfone bismaleimide, N,N'-4,4'-dicyclo-hexylmethane bismaleimide, N,N'-α,α'-4,4'-dimethylenecyclohexane bismaleimide, N,N'-m-xylene bismaleimide, N,N'-4,4'-diphenylcyclohexane bismaleimide and polyvalent maleimides of the following formula obtained from aniline, formaldehyde condensate and maleic anhydride: ##STR19## with at least one ether bond-containing diamine compound selected from the group consisting of 2,2'-bis[4-(4-aminophenoxy)phenyl]propane, 2,2'-bis[3-methyl-4-(4-aminophenoxy)phenyl]propane, 2,2'-bis[3-chloro-4-(4-aminophenoxy)phenyl]propane, 2,2'-bis[3-bromo-4-(4-aminophenoxy)phenyl]propane, 2,2-bis[3-ethyl-4-(4-aminophenoxy)phenyl]propane, 2,2-bis[3-propyl-4-(4-aminophenoxy)phenyl]propane, 2,2-bis[3-isopropyl-4-(4-aminophenoxy)phenyl]propane, 2,2-bis[3-butyl-4-(4-aminophenoxy)phenyl]propane, 2,2-bis[3-sec.-butyl-4-(4-aminophenoxy)phenyl]propane, 2-2-bis[3-methoxy-4-(4aminophenoxy)phenyl]propane, 1,1-bis[4-(4-aminophenoxy)phenyl]ethane, 1,1-bis[3-methyl-4-(4-aminophenoxy)phenyl]ethane, 1,1-bis[3-chloro-4-(4-aminophenoxy)phenyl]ethane, 1,1-bis[3-bromo-4-(4-aminophenoxy)phenyl]ethane, bis[4-(4-aminophenoxy)phenyl]methane, bis[3-methyl-4-(4-aminophenoxy)phenyl]methane, bis[3-chloro-4-(4-aminophenoxy)phenyl] methane, bis[3-bromo-4-(4-aminophenoxy)phenyl]methane, 1,1,1,3,3-hexafluoro-2, 2-bis[4-(4-aminophenoxy)phenyl]propane, 1,1,1,3,3,3-hexachloro-2, 2-bis[4-(4-aminophenoxy)phenyl]propane, 3,3-bis[4-(4-aminophenoxy)phenyl]pentane, 1,1-bis[4-(4-aminophenoxy)phenyl]propane, 1,1,1,3,3,3-hexafluoro-2,2-bis[3,5-dimethyl-4-(4-aminophenoxy)phenyl]propane, 1,1,1,3,3,3-hexafluoro-2,2-bis-[3,5-dibromo-4-(4-aminophenoxy)phenyl]propane, and 1,1,1,3,3,3-hexafluoro-2,2-bis[3-methyl-4-(4-aminophenoxy)phenyl]propane.
Claim 13
Dependent Claim
112 words
A maleimide resin composition comprising a maleimide-diamine adduct produced by heating and reacting a reaction mixture comprising at least one maleimide compound selected from the group consisting of N,N'-hexamethylene bismaleimide, N-phenylmaleimide, N,N'-m-phenylene bismaleimide, N,N'-p-phenylene bismaleimide, N,N'-4,4'-diphenylmethane bismaleimide, N,N'-4,4'-diphenyl ether bismaleimide, N,N'-methylene bis(3-chloro-p-phenylene) bismaleimide, N,N'-4,4'-diphenylsulfone bismaleimide, N,N'-4,4'-dicyclo-hexylmethane bismaleimide, N,N'-α,α'-4,4'-dimethylenecyclohexane bismaleimide, N,N'-m-xylene bismaleimide, N,N'-4,4'-diphenylcyclohexane bismaleimide and polyvalent maleimides of the following formula obtained from aniline, formaldehyde condensate and maleic anhydride: ##STR19## with at least one ether bond-containing diamine compound selected from the group consisting of 2,2'-bis[4-(4-aminophenoxy)phenyl]propane, 2,2'-bis[3-methyl-4-(4-aminophenoxy)phenyl]propane, 2,2'-bis[3-chloro-4-(4-aminophenoxy)phenyl]propane, 2,2'-bis[3-bromo-4-(4-aminophenoxy)phenyl]propane, 2,2-bis[3-ethyl-4-(4-aminophenoxy)phenyl]propane, 2,2-bis[3-propyl-4-(4-aminophenoxy)phenyl]propane, 2,2-bis[3-isopropyl-4-(4-aminophenoxy)phenyl]propane, 2,2-bis[3-butyl-4-(4-aminophenoxy)phenyl]propane, 2,2-bis[3-sec.-butyl-4-(4-aminophenoxy)phenyl]propane, 2-2-bis[3-methoxy-4-(4aminophenoxy)phenyl]propane, 1,1-bis[4-(4-aminophenoxy)phenyl]ethane, 1,1-bis[3-methyl-4-(4-aminophenoxy)phenyl]ethane, 1,1-bis[3-chloro-4-(4-aminophenoxy)phenyl]ethane, 1,1-bis[3-bromo-4-(4-aminophenoxy)phenyl]ethane, bis[4-(4-aminophenoxy)phenyl]methane, bis[3-methyl-4-(4-aminophenoxy)phenyl]methane, bis[3-chloro-4-(4-aminophenoxy)phenyl] methane, bis[3-bromo-4-(4-aminophenoxy)phenyl]methane, 1,1,1,3,3-hexafluoro-2, 2-bis[4-(4-aminophenoxy)phenyl]propane, 1,1,1,3,3,3-hexachloro-2, 2-bis[4-(4-aminophenoxy)phenyl]propane, 3,3-bis[4-(4-aminophenoxy)phenyl]pentane, 1,1-bis[4-(4-aminophenoxy)phenyl]propane, 1,1,1,3,3,3-hexafluoro-2,2-bis[3,5-dimethyl-4-(4-aminophenoxy)phenyl]propane, 1,1,1,3,3,3-hexafluoro-2,2-bis-[3,5-dibromo-4-(4-aminophenoxy)phenyl]propane, and 1,1,1,3,3,3-hexafluoro-2,2-bis[3-methyl-4-(4-aminophenoxy)phenyl]propane.
Claim 14
Dependent Claim
28 words
A maleimide resin composition according to claim 9, produced from a mixture consisting essentially of said at least one maleimide and said at least one ether bond-containing diamine.
Claim 15
Dependent Claim
21 words
A maleimide resin composition according to claim 9, wherein said adduct has a molecular weight from about 450 to about 4300.
Claim 16
Dependent Claim
29 words
A maleimide resin composition according to claim 9, wherein said at least one maleimide compound is N,N'-4,4'-diphenylmethane bismaleimide and said at least one ether bond-containing diamine compound is 2,2-bis[4-(4-aminophenoxy)phenyl]propane.
Claim 17
Dependent Claim
29 words
A maleimide resin composition according to claim 9, wherein said at least one maleimide compound is N,N'-m-phenylene bismaleimide and said at least one ether bond-containing diamine compound is 2,2-bis[3-methyl-4-(4-aminophenoxy)phenyl]propane.
Claim 18
Dependent Claim
28 words
A maleimide resin composition according to claim 9, wherein said at least one maleimide compound is: ##STR20## and said at least one ether bond-containing diamine compound is 2,2-bis[4-(4-aminophenoxy)phenyl]propane.
Claim 19
Dependent Claim
31 words
A maleimide resin composition according to claim 9, wherein said at least one maleimide compound is N,N'-4,4-diphenylmethane bismaleimide and ##STR21## and said at least one ether bond-containing diamine compound is 2,2-bis[3-ethyl-4-(4-aminophenoxy)phenyl]propane.
Claim 20
Dependent Claim
30 words
A maleimide resin composition according to claim 9, wherein said reaction mixture contains a low boiling solvent selected from the group consisting of acetone, methyl ethyl ketone and methyl cellosolve.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-03-06 | 1987-09-05 | 1988-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-03-06 | 1991-09-05 | 1992-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-03-06 | 1995-09-05 | 1996-03-06 | $7700.00 | Window Closed / Lapsed |