US4742141A
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Imido polymer from bis imide and alkenyloxyaniline
Assignee: Huntsman Advanced Materials Americas LLC
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Filing: 1986-11-13
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Granted: 1988-05-03
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Expires: 2006-11-13
Abstract
Abstract Novel, heat-stable imido polymers, well adopted, e.g., as impregnants, or coating or molding resins, comprise the polymerizates of (a) at least one N,N'-bismaleimide, (b) at least one alkenyloxyaniline, and, optionally, (c) at least one N-(meth)allyloxyphenylmaleimide.
Inventors
- 👤 Rene Dien
- 👤 Michel Rakoutz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 22:49
CPC Classifications
C; C08; C08G; C08G73/00; C08G73/06; C08G73/10; C08G73/12; C08G73/121; C08G73/122; C08F; C08F222/00; C08F222/36; C08F222/40; C08F222/404; C08G73/125; C08G73/126; C08G73/127
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
111 words
An imido polymer comprising the polymerizate of: (a) at least one N,N'-bisimide having the formula: ##STR12## in which Y is H, CH 3 or Cl, A is cyclohexylene, phenylene, 4-methyl-1,3-phenylene, 2-methyl-1,3-phenylene, 5-methyl-1,3-phenylene, 2,5-diethyl-3-methyl-1,4-phenylene, or a radical of the formula: ##STR13## in which T is a single valency bond or T is a group: ##STR14## and X is a hydrogen atom or a methyl, ethyl or isopropyl radical; and (b) at least one alkenyloxyaniline of the formula: ##STR15## in which the allyloxy or methallyloxy radical is in the ortho-, meta- or para-position relative to the benzene ring carbon atom bonded to the nitrogen atom, and R is H or CH 3 .
Claim 2
Dependent Claim
111 words
An imido polymer comprising the polymerizate of: (a) at least one N,N'-bisimide having the formula: ##STR12## in which Y is H, CH 3 or Cl, A is cyclohexylene, phenylene, 4-methyl-1,3-phenylene, 2-methyl-1,3-phenylene, 5-methyl-1,3-phenylene, 2,5-diethyl-3-methyl-1,4-phenylene, or a radical of the formula: ##STR13## in which T is a single valency bond or T is a group: ##STR14## and X is a hydrogen atom or a methyl, ethyl or isopropyl radical; and (b) at least one alkenyloxyaniline of the formula: ##STR15## in which the allyloxy or methallyloxy radical is in the ortho-, meta- or para-position relative to the benzene ring carbon atom bonded to the nitrogen atom, and R is H or CH 3 .
Claim 3
Dependent Claim
64 words
The imido polymer as defined by claim 1, comprising the polymerizate of said comonomers (a) and (b), together with: (c) at least one copolymerizable unsaturated comonomer having the formula: ##STR16## in which the allyloxy or methallyloxy radical is in the ortho-, meta- or para-position relative to the benzene ring carbon atom bonded to the nitrogen atom, and R is H or CH 3 .
Claim 4
Dependent Claim
64 words
The imido polymer as defined by claim 1, wherein the amounts of N,N'-bisimide(s) (a), of amine reactant (b) and copolymerizable reactant (c) are such that the ratio r 1 : ##EQU4## ranges from 1/1 to 10/1, and the number of imide groups contributed by the copolymerizable reactant (c) constitutes up to 30% of the total number of imide groups contributed by the reactants (a)+(c).
Claim 5
Dependent Claim
23 words
The imido polymer as defined by claims 1 or 2, in cured state, insoluble, and exhibiting no appreciable softening below the decomposition temperature.
Claim 6
Dependent Claim
30 words
The imido polymer as defined by claims 1 or 2, in thermosetting prepolymer state, soluble in polar organic solvents, and having a softening point at a temperature below 200° C.
Claim 7
Dependent Claim
31 words
A process for the preparation of the cured imido polymer as defined by claim 4, comprising heating a mixture of said comonomers at a temperature of from 50° to 250° C.
Claim 8
Dependent Claim
44 words
The process as defined by claim 6, comprising first heating said mixture of reactants to a temperature of from 50° C. to 180° C. to prepolymerize same, and thence curing the prepolymer which results at a temperature of from 150° C. to 250° C.
Claim 9
Dependent Claim
40 words
A process for the preparation of the prepolymer as defined by claim 5, comprising directly heating a mixture of said comonomers at a temperature of from 50° C. to 180° C. until a homogeneous liquid or pasty product is obtained.
Claim 10
Dependent Claim
14 words
A shaped article comprising the imido polymer as defined by claims 1 or 2.
Claim 11
Dependent Claim
12 words
A shaped article comprising the imido polymer as defined by claim 4.
Claim 12
Dependent Claim
12 words
A shaped article comprising the imido polymer as defined by claim 5.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1991-05-03 | 1991-11-02 | 1992-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-05-03 | 1995-11-02 | 1996-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-05-03 | 1999-11-02 | 2000-05-03 | $7700.00 | Window Closed / Lapsed |